U.S. PATENT AND TRADEMARK OFFICE
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U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
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Class 315
ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS
Class Definition:
This is a restricted class which includes assembled patents
on the special types of electric lamp and electric space
discharge device systems set forth in the following
sections:
A. Structural Combinations With Circuit Elements;
B. Structural Combinations With Heating And/Or Cooling
Means;
C. Cathode-Ray Tubes;
D. Lamps and/or Discharge Devices as Sole Load Devices;
E. Lamps;
F. Electric Space Discharge Devices
G. Gas or Vapor Discharge Devices;
H. High Vacuum-Type Discharge Devices, and Gas or Vapor-type
Discharge Devices Claimed Broadly;
I. Plural Load Device Systems;
J. Art Uses and Combinations With Art Devices;
K. Testing Electric Lamps and Discharge Devices; and
L. Operating a Lamp or a Gas or Vapor Discharge Device.
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
A. STRUCTURAL COMBINATIONS WITH CIRCUIT ELEMENTS:
Electric lamps and electric space discharge devices of any
type (including cathode-ray tubes) with or without a
discharge control device, combined with other circuit
elements all of which (other than a mere source of current
and/or potential supply if claimed) are structurally combined
therewith to form a unitary device. Such structurally
combined circuit elements may be in either or both the input
or output circuit of a discharge device, or in neither
circuit, and may be used for any purpose. Such means appear
in this class (see Subclass References to the Current Class,
below). If any circuit element is not structurally combined
as stated above, the patent is treated as stated in the
following sections. See the sections F-4; and G; and H,
especially.
B. STRUCTURAL COMBINATIONS WITH HEATING AND/OR COOLING
MEANS:
The subject matter of section A, combined with means for
heating and/or cooling the lamp or discharge device
structure, which heating and/or cooling means is either
structurally combined with the lamp or discharge device, or
with an electrical circuit element, or forms an electrical
circuit element. All electrical circuit elements (except a
mere source of current and/or potential supply, if claimed)
which are not structurally combined with the lamp or
discharge device must be structurally combined with the
heating and/or cooling means; see Subclass References to the
Current Class, below. If any circuit element is not
structurally combined as stated in this and the preceding
section (A), the patent is treated as stated in the following
sections (see section H-2-d for other temperature-modifying
combinations).
C. CATHODE-RAY TUBES:
Combined with an electric system for the supply and control
of current and/or potential thereto as the ultimate load on
the system. Sections A and B, above, deal with other special
cathode-ray tube systems in this class. Such means appear in
this class (315). See Subclass References to the Current
Class, below.
D. LAMPS AND/OR DISCHARGE DEVICES AS SOLE LOAD DEVICES:
1. With an electric system for supplying current and/or
potential thereto. If there is any other type of electric
load device, as either the sole ultimate load device or in
addition to the lamp and/or discharge device load, the patent
is in some other appropriate class. The load may be
constituted by one or more lamps alone, by one or more
discharge devices alone, or by any combination therebetween
subject to the limitations noted below in this section and in
the following sections. Discharge devices having a claimed
output circuit are in this class only in the special cases
set forth in paragraphs A, B, and F.
2. Where systems are provided with an impedance in the supply
circuit of the lamp or discharge device, and the sole
function of the impedance is to regulate current flow to the
lamp or discharge device, the impedance is not considered a
load device.
3. Systems wherein an impedance is substituted in the circuit
when a lamp or discharge device is removed therefrom so that
the impedance provides a substitute load on the system are
included in this class, see Subclass References to the
Current Class, below.
E. LAMPS:
With an electric system for supply and control of current
and/or potential thereto as the ultimate load on the system.
F. ELECTRIC SPACE DISCHARGE DEVICES:
1. Combined with an electric system for the supply and/or
control of current and/or potential supplied thereto, the
discharge device being the ultimate load in the system, where
the system of supply and/or control is to result as its sole
function in either or both: a. causing a discharge to take
place or b. mere regulation of the discharge.
2. In this type of system, the output circuit may be claimed
if it is claimed so broadly as to be in effect the mere
completion of the circuit so that a discharge may take
place.
3. This type of system is included even though the type of
current flowing in the anode-cathode circuit is specified as
being different from the supply current (as, for example,
d.c. and a.c., respectively, as in the mercury arc type of
discharge device).
4. Due to differences in operating characteristics between:
a. gas or vapor discharge devices, and b. high vacuum
discharge devices. Systems limited to these two different
types have been treated differently, see sections G and H,
below.
5. The preceding limitations cause exclusion from this class
of: a. The regulation and/or control of the current and/or
potential in a circuit by means of a discharge device, even
though no load device in the regulated and/or controlled
circuit is claimed, and the discharge device is under the
terms of the claim the ultimate load device; b. Those systems
having one or more discharge devices constituting the
ultimate load on the system, where the system includes means
which limit the system to use for purposes other than, or in
addition to, section F, Electric Space Discharge Devices, 1
(a) or (b) above (e.g., to amplify, modulate, etc.).
G. GAS OR VAPOR DISCHARGE DEVICES:
1. combined with an electric system as defined in section F
are included in this class when the claims are restricted to
discharge devices of the gas or vapor type, and: a. where
they are only principal electrodes, b. where there are one or
more discharge control electrodes in addition to the
principal electrodes which do not function to retain control
of the discharge after it is initiated to regulate the same,
c. where there is an electromagnetic discharge control device
(other than or in addition to electrodes as in (a) or (b)
even though it controls the discharge after it is initiated.
2. Where there is a discharge control electrode of any kind,
or a nonelectrode discharge control device other than
electromagnetic, and the system is so designed that the
discharge control device or electrode retains control of the
discharge after it is initiated to regulate the same
(continuous control type), the patent is excluded from this
class.
3. Where the discharge device in the system is disclosed as
being of the gas or vapor type, but the claims are not so
limited (the device being claimed broadly as a discharge
device), the patent is not classified in this class, but in
some other class appropriate to the subject matter claimed,
except in the particular instances set forth in section H.
H. HIGH VACUUM-TYPE DISCHARGE DEVICES, AND GAS OR VAPOR-TYPE
DISCHARGE DEVICES CLAIMED BROADLY:
Combined with an electric system as defined in section F,
Electric Space Discharge Devices, above, are included in this
class only in the following particular situations (being in
all other instances excluded):
1. Structural combinations as defined in sections A and B,
above, with or without discharge control means;
2. Where the only electrodes claimed are the principal
electrodes (no discharge control device of any kind being
claimed) and the patent is classifiable in one of the
following art areas: a. having means to automatically
substitute a second source of current and/or potential
supply, b. having means to automatically substitute a second
discharge device for an operating discharge device when it
fails to operate properly, c. having means to supply current
to the cathode or cathode heater of the discharge device, d.
having means to modify the temperature of the discharge
device, either the temperature modifying medium being
automatically controlled or the discharge device supply
circuit being controlled by the temperature modifying medium
(see section B. on other temperature modifying combinations).
(See Subclass References to the Current Class, below, for a
map of these art areas.)
I. PLURAL LOAD DEVICE SYSTEMS:
Circuits are classified in this class as being plural load
device systems where they have any one or any combination of
the following, and in any circuit relationship, including
where one is in a control circuit of another: a. where the
circuit claimed includes two or more lamps; b. where the
circuit claimed includes two or more discharge devices, at
least two being limited in the claims to the gas or vapor
type; c. where the circuit claimed includes at least one lamp
and at least one discharge device limited in the claims to
the gas or vapor type.
J. ART USES AND COMBINATIONS WITH ART DEVICES:
Only to the following limited extent, the lamp and/or
discharge device system claimed is subject to all of the
limitations of parts A through J of this definition. The must
be no classification in any other class on the basis of the
art use or combination with the particular article, device or
apparatus claimed. There mere designation of a lamp by an
art name (as an ultraviolet or other special ray generator)
or the mere designation of a discharge device or one or more
of the principal electrodes thereof by an art name (as a
spark plug, igniter, naming a principal electrode as work to
be heated or welded) will not exclude the patent from this
class in the absence of further art limitations. For further
details of the lines with particular arts, see the notes
appended to the main class definition and to the definitions
of the subclasses for combinations with particular articles,
devices, or apparatus. See Subclass References to the
Current Class, below.
K. TESTING ELECTRIC LAMPS AND DISCHARGE DEVICES:
Where the system is designed to operate the lamp or discharge
device as a load device and the system includes means to
indicate some condition thereof, the system is classified
with the systems of operation in this class. This Class
provides for such operating systems combined with signal,
indicator, or alarm (see Subclass References to the Current
Class, below). Electrical circuits, apparatus, and methods
which are limited in their use to testing the operativeness
or determining the characteristics of electric lamps or
electric discharge devices of any type and which are limited
in their use to the sole purpose of such testing are
classified elsewhere, even though the system includes an
electric lamp or discharge device as the means for indicating
the operativeness or characteristics of the device under
test. (See References to Other Classes, below.)
L. OPERATING A LAMP OR A GAS OR VAPOR DISCHARGE DEVICE:
Patents which claim a method of operating a lamp or a gas or
vapor discharge device are classified in this class (315).
The patent is classified in the subclass which provides for
the system which is required to operate the device. For
example, a claim which recites a method of operating a lamp
by first passing a current of one magnitude through the lamp
and in then increasing the current flow through the lamp
would be classified in this class as a system having
regulating means in the system (see Subclass References to
the Current Class, below).
FURTHER NOTES:
Lamp And Discharge Device Structure:
Patents claiming an electric lamp or discharge device
structure and means broadly to supply electric energy or
potentials thereto are classified elsewhere as a lamp or
discharge device structure. If the relative magnitude or
relationship of the electric energy or potential is specified
in the claims, the patent is classified as an electrical
system and cross-referenced for the lamp or discharge device
structure. Where two or more lamps and/or discharge devices
are structurally combined to form a unitary device (there
being no circuit element in addition to such structure), the
structural combination is classified in the classes noted
below even though the electrodes thereof are interconnected,
except in the following particular instances: the combination
of an incandescent filament lamp and a discharge device
structurally combined to form a unitary structure, the
filament connected to form a circuit impedance or heater for
the discharge device load. (For these, see Subclass
References to the Current Class, below.)
For other structures and structural combinations, see
References to Other Classes, below.
Space Discharge Igniters:
This class provides for systems for supplying electric energy
to one or more discharge devices of the "spark plug" or
"ignition" type when the claims are limited to a discharge
device. Where the claims are not so limited, being drawn to
an ignition device broadly (not limited to a discharge
device, spark plug, or spark gap), the patent is placed in
the appropriate igniter classification and cross-referenced
to this class. Also ignition systems, even though limited to
a discharge device, when claimed in combination with fuel
burning apparatus, are classified with the type of fuel
burning apparatus, (see also main class definition, section
J).
For such ignition device systems and combinations, see
References to Other Classes, below.
Load Devices Other Than or in Addition to Lamps and/or
Discharge Devices:
See section D, above. Where the system claimed includes a
load device other than a lamp and/or discharge device, even
though lamps and/or discharge devices constitute a part of
the system, either as additional load devices or as part of
the system of regulation and/or control of such other load
device, the patent is excluded from this class, and will be
found in the class appropriate to the type of load device or
combined load devices.
Class 315 provides for electrical systems limited to
supplying electric current and/or potential to one or more
electronic tubes of of the gas or vapor type. Many of these
systems inherently convert A.C. to D.C. or D.C. to A.C. Some
are inherently oscillation generators. Where the system is
limited by claimed subject matter to supplying a load
circuit, it is excluded from Class 315. Merely claiming the
circuit necessary to connect the anode to the cathode as a
load circuit is not sufficient to exclude the system from
Class 315. Claiming a load device, either specifically or
broadly in the output circuit will exclude the system from
Class 315. Claiming subject matter which would not be
provided unless the system were to be used for supplying a
load device is sufficient to exclude the system from Class
315. For example, reciting means in the output circuit
responsive to overload conditions in output circuit to
control the system will exclude the system from Class 315.
See References to Other Classes, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1 for supplying electric current and/or potential to
cathode-ray tubes, and/or cathode-ray tubes combined with a
circuit element which is structurally combined with the
cathode-ray tube so as to form a unitary device.
3 for subject matter in which cathode-ray tubes are combined
with circuit elements, all of which are structurally combined
therewith to form a unitary device, see main class
definition, sections (A) and (B).
32 and indented subclasses for electrical circuit elements
(except a mere source of current and/or potential supply, if
claimed) which are not structurally combined with the lamp or
discharge device must be structurally combined with the
heating and/or cooling means.
32 for subject matter under the class definition, sections
(A) and (B), Structural Combinations With Circuit Elements
and Structural Combinations With Heating And/Or Cooling
Means.
46 and indented subclasses and subclass 49 for the
combination of an incandescent filament lamp and a discharge
device structurally combined to form a unitary structure, the
filament connected to form a circuit impedance or heater for
the discharge device load.
76 and indented subclasses for combinations with particular
articles, devices, or apparatus.
86 for means to automatically substitute a second source of
current and/or potential supply
88 for means to automatically substitute a second discharge
device for an operating discharge device when it fails to
operate properly,
94 for means to supply current to the cathode or cathode
heater of the discharge device,
112 for means to modify the temperature of the discharge
device, either the temperature modifying medium being
automatically controlled or the discharge device supply
circuit being controlled by the temperature modifying medium,
(see Lines With Other Classes and Within This Class, section
B, above, on other temperature modifying combinations).
119 and indented subclasses for systems wherein an impedance
is substituted in the circuit when a lamp or discharge device
is removed therefrom so that the impedance provides a
substitute load on the system.
120 for operating systems combined with signaling means, or
indicator means, or alarm means operated by some part of the
load device or the electrical circuits therefor to indicate
some condition in the load device or the circuits therefor.
120 and 129+ provides for supply systems for lamps and gas
or vapor discharge devices which include a signal to indicate
the condition of the load device or the circuit.
291 a claim which recites a method of operating a lamp by
first passing a current of one magnitude through the lamp and
then increasing the current flow through the lamp would be
classified in this subclass as a system having regulating
means in the system.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
40, Card, Picture, or Sign Exhibiting, 541 for illuminated
signs in combination with the systems for supplying electric
current to the lamps.
84, Music, subclass 464 for electric lamp systems combined
with musical instruments for providing color or light
effect.
96, Gas Separation: Apparatus, 80 for electrostatic
precipitators having voltage supply means or circuitry for
applying electrical potential thereto.
99, Foods and Beverages: Apparatus, subclass 483 for
methods and apparatus for subjecting foods and beverages to
an electric space discharge.
123, Internal-Combustion Engines, subclass 147 and 594+.
(Lines With Other Classes and Within This Class, "Space
Discharge Igniters.")
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses for electric switches. Some types of electric
switches are closely analogous in structure to some types of
electric space discharge devices. This is especially true
with respect to the type of electric space discharge device
where the electrodes of the discharge device are normally in
contact under open circuit conditions, the electrodes being
separated from each other when the current is applied to the
circuit, the space discharge being established by separating
or drawing apart the electrodes. An electric switch of the
thermostatic type where the contacts of the switch are
normally open when no current is applied to the circuit which
includes the switch, the switch including means to establish
an electric space discharge between the contacts, the space
discharge heating the thermostat so that the thermostat moves
the switch contacts into circuit closing position to
establish a conductive path for the current through the
contacts and to short-circuit or extinguish the space
discharge, is closely analogous in structure to space
discharge devices of the type which is classified in this
class (315) in 56 as a combined switch and discharge device.
The distinction between electric switches and space
discharge devices, therefore, depends in some cases
principally upon the disclosed purpose of the structure
claimed by the patent. Where the space discharge is only an
incident to the separating of the switch contacts and the
purpose of the structure is to open or close a circuit, the
device will be considered an electric switch for the purpose
of classification. Where the purpose of the claimed
structure is to establish an electric space discharge by
contacting the electrodes with each other, the device is
considered to be an electric space discharge device. This
class (315) includes, in subclasses 56+, combined space
discharge devices and electric switch structures where the
device claimed includes electrodes other than the switch
electrodes, their supports, or lead-in means for establishing
an electric space discharge. To be classified in Class 315,
the device claimed must include at least one electrode which
has no purpose other than to operate as an electric space
discharge electrode. Where the only discharge electrodes are
also switch means, the patent will be classified in Class
200. For switches which are somewhat analogous in structure
to space discharge devices, see subclass 144, where the
switch is provided with means to separate the switch contacts
from each other to open the circuit, the switch structure
including means to extinguish the space discharge formed when
the switch contacts are opened; subclasses 182+, for mercury
and other liquid contact switches which are closely analogous
in structure to mercury vapor and other liquid electrode
lamps and discharge devices.
204, Chemistry: Electrical and Wave Energy, 155, 164+,
192.1+, and 298.01+ for methods for subjecting materials to
electric space discharges for performing chemical changes and
analogous purposes. See Class 422, Chemical Apparatus and
Process Disinfecting, Deodorizing, Preserving, or
Sterilizing, subclasses 186+ for apparatus for subjecting
reactants to electromagnetic wave energy (other than visible
light) or corpuscular radiation; e.g. radioactive particles,
for initiating or perfecting a reaction.
219, Electric Heating, 50, especially indented subclasses
121.11+ for systems for supplying electrical energy to arc
welding and/or heating apparatus. Class 315 provides
electric systems for supplying electric current to an
electric arc where the arc is specified by name only as a
welding and/or heating arc. The patent will not be excluded
from Class 315 even though one of the electrodes is named as
the material or object broadly defined, such as "the work to
be welded and/or heated". Where the claimed subject matter
is limited to the welding and/or heating art, such as, for
example, by claiming the means for holding, handling,
feeding, and/or moving the work to be welded and/or heated,
the patent is classified in Class 219.
250, Radiant Energy, is the generic class for electric
discharge systems. In this class, 200 is the generic place
for photoelectric device circuits. Class 315 provides for
systems wherein the ultimate load device in the system is
either a lamp or gas or vapor discharge device, and the
system includes means for controlling the operation of the
load device by means of radiant energy. In Class 315, the
load device may be a radiant energy sensitive device; that is
a lamp or discharge device whose operation is altered when
subjected to radiant energy, or the system may include a
radiant energy sensitive device such as a photocell which
controls the operation of the load device. Subclass 251
provides for devices for producing and propagating a
unidirectional stream of neutral molecules or atoms through a
vacuum, usually with thermal velocity. Subclasses 281+
provides for methods and apparatus for the ionic separation
or analysis of a material utilizing the mass to electric
charge ratio of ionic particles of the material. Subclasses
324+ has methods and apparatus of irradiating material by
corona radiation. Subclasses 432+ is the place for
irradiating fluent material which is contained, supported, or
transferred from one place to another. Subclasses 440.11+ is
for a supported object subjected to charged particles used to
inspect the object for a radiant source, and subclasses
454.11+ in addition to an irradiated object support, includes
a support for a radiation source. Subclasses 458.1+, is the
generic place for methods and apparatus to irradiate
fluorescent or phosphorescent devices including self-luminous
articles particularly those used as signalling alignment or
indicating devices. Subclasses 492.1+ is the generic place
for the irradiation of material or objects by wave or
particles of energy of the nuclear or electromagnetic wave
type. Where not elsewhere classified, Class 315 includes
systems provided with a load device of the con fined gas or
vapor type with means regulating the gas or vapor pressure in
the confined space, or systems having a discharge device load
with means to supply fluent material to the outer electrode
discharge space, or systems having a load device and provided
with means to supply fluent material to the load device to
modify the temperature of the discharge device, only when the
disclosed or claimed purpose of the fluent material supply is
to modify the operation of the discharge device. Where the
purpose of the claimed subject matter is to treat the fluent
material either with rays generated by the discharge, or to
subject the material to the influence of the discharge, the
patent is classified in Class 250 or other appropriate class
which provides for the particular art.
290, Prime-Mover Dynamo Plants, subclass 13, 26, 33, 35, 37,
and 41 for such plants having an internal combustion engine
provided with ignition means of the discharge device type
(spark plugs). (Lines With Other Classes and Within This
Class, "Space Discharge Igniters.")
307, Electrical Transmission or Interconnection Systems, 11
for plural load circuit systems; 43+ for plural supply
circuits or sources, particularly subclasses 48+ and 66+ in
which one of the sources of electrical current is a storage
battery (see the class of Electricity: Battery or Capacitor
Charging or Discharging, below, for battery charging and/or
discharging systems); and 154+ for systems for supplying one
or more particular load devices not elsewhere classifiable
but particularly subclass 157 in which the load is a lamp or
discharge device. (Lines With Other Classes and Within This
Class, "Load Devices Other Than or in Addition to Lamps,
and/or Discharge Devices.")
313, Electric Lamp and Discharge Devices, appropriate
subclasses for the structure of electric lamps and discharge
devices, per se. See 1 for a plurality of discharge devices
(including discharge device lamps) or a discharge device and
an incandescent lamp which are structurally combined to form
a unitary device. (Lines With Other Classes and Within This
Class, "Lamp and Discharge Device Structure.")
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 7 provides for systems for supplying
such type discharge device and another type discharge device
or lamp. (Lines With Other Classes and Within This Class,
"Load Devices Other Than or in Addition to Lamps, and/or
Discharge Devices.")
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses for electric lamps and
discharge devices of the consumable electrode type, and such
devices in combination with the electric system for supplying
current or potential to the device.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, which class takes such structures, even though
combined with lamp and/or discharge devices of other types.
(Lines With Other Classes and Within This Class, "Lamp and
Discharge Device Structure.")
320, Electricity: Battery or Capacitor Charging or
Discharging, appropriate subclass for a battery or capacitor
charging or discharging system. (Lines With Other Classes
and Within This Class, "Load Devices Other Than or in
Addition to Lamps, and/or Discharge Devices.")
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 and the subclasses specified in the
notes to the definitions of those subclasses for systems for
controlling the magnitude of the current and/or voltage in a
single circuit having a discharge device as the control
means. The discharge device may be either a vacuum tube or a
gas or vapor tube. The systems in Class 323 include more
than the mere circuit for supplying electric current or
potential to the discharge device for merely causing a
discharge to take place within the tube or for regulating the
discharge within the tube. Many of the systems in Class 323
are closely analogous to the systems in this class. See
Lines With Other Classes and Within This Class, in the class
definition of Class 323 for the line between this class (315)
and Class 323. (Lines With Other Classes and Within This
Class, "Load Devices Other Than or in Addition to Lamps,
and/or Discharge Devices.")
324, Electricity: Measuring and Testing, 403 for electrical
circuits, apparatus, and methods which are limited in their
use to testing the operativeness or determining the
characteristics of electric lamps or electric discharge
devices of any type and which are limited in their use to the
sole purpose of such testing. (See Lines With Other Classes
and Within This Class, "Testing Electric Lamps and Discharge
Devices," above.)
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, for miscellaneous electron discharge
device circuits.
329, Demodulators, for amplitude, frequency, phase, or pulse
demodulator which may include an electron discharge device as
a demodulating element (315).
330, Amplifiers, appropriate subclasses for amplifier systems
including gas tubes, cathode-ray tubes, traveling wave tubes,
magnetrons, etc., which are of the type of tubes in circuits
classified in this class.
331, Oscillators, is the generic class for electrical
oscillators. Many systems using electric lamps of the
gaseous or vapor discharge type inherently generate
oscillations during operation. Class 315, therefore, provides
for all systems for merely supplying electric current or
potential to gaseous or vapor discharge devices whether the
system is claimed as an oscillation generator or merely as a
lamp circuit provided that the system is not limited by
claimed subject matter to use as an oscillation generator,
such as, for example, means to transfer the oscillating
electric energy to another circuit or means to use the
oscillating energy.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for thermal switches which
are combined with space discharge devices.
340, Communications: Electrical, appropriate subclasses for
electric signals and signaling systems wherein an electric
lamp is used as the signal means, and for miscellaneous
signaling systems which include discharge devices as a part
thereof. Merely defining the lamp as a signal will not
exclude the patent from Class 315, even though the circuit of
the lamp is controlled in accordance with the operated or
nonoperated condition of some device. Class 315 provides for
supply systems for lamps and gas or vapor discharge devices
which include a signal to indicate the condition of the load
device or the circuit (see Subclass References to the Current
Class, above).
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, appropriate
subclasses for selective control of data presentation on a
display device.
361, Electricity: Electrical Systems and Devices, 247 for
the detonation of an explosive charge. (Lines With Other
Classes and Within This Class, "Space Discharge Igniters.")
362, Illumination, generic class for illuminating devices
provided with means to modify and/or distribute the
illumination, and/or with protective means, such as casings,
globes, or guards, and for the supports and holders for lamps
(other than mere sockets) and such electric lamp illuminating
devices when claimed in combination with the source of supply
for the lamp.
363, Electric Power Conversion Systems, appropriate
subclasses for various conversion systems including
electronic tubes and their control. The systems of Class 363
are closely analogous to the systems of this class (315). In
many cases, the distinction between a Class 363 system and a
Class 315 system will be significant claiming of a load
circuit or load device. Many of the systems of Class 315
will inherently operate as a current convertor because of the
basic property of many electronic tubes to conduct current in
one direction only. In such cases, the inclusion of the load
circuit or load device may be determinative as to whether the
system as claimed relates to a conversion system. The
following subclasses of Class 363 are of particular interest.
See 50 for protective systems for electronic tube current
convertors; subclasses 74+ for current conversion systems
with automatic voltage and/or current magnitude control which
may include electronic tube control; subclasses 83, 94, and
99 for current conversion systems with electronic tube line
circuit control means; subclasses 111+ for electronic tube
current conversion systems; subclass 151 for electronic tube
phase conversion systems; subclasses 166+ for electronic tube
frequency conversion systems. For the line between this
class (315) and Class 363, see Lines With Other Classes and
Within This Class in the class definition of Class 363.
363, Electric Power Conversion Systems, 74 for rectifying
and derectifying systems with automatic voltage and/or
current magnitude control wherein the control means may be an
electronic tube having a discharge control means. Many of
the systems in Class 363 are closely analogous to the systems
in this class (315). See Lines With Other Classes and Within
This Class in the class definition of Class 363 for the line
between this class (315) and Class 363. (Lines With Other
Classes and Within This Class, "Load Devices Other Than or in
Addition to Lamps, and/or Discharge Devices.")
373, Industrial Electric Heating Furnaces, 60 for electric
arc furnaces. Class 315 provides for systems for supplying
electric current to arc furnaces provided that the arc
furnace is included by name only. Where the claims include
significant furnaces structure, or are otherwise limited to
the furnaces art, the patent is classified in Class 373.
378, X-Ray or Gamma Ray Systems or Devices, appropriate
subclasses, particularly 91 for circuits for energizing or
controlling X-ray tubes. (Lines With Other Classes and
Within This Class, "Load Devices Other Than or in Addition to
Lamps, and/or Discharge Devices.")
417, Pumps, 48 for pumps utilizing a space discharge. See
Class 417, subclass 49 for a statement of the line.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, 22 for processes of
disinfecting, deodorizing, preserving, or sterilizing using
an electric space charge device.
431, Combustion, 264 for a spark electrode in front of or
adjacent the fuel discharge of a burner. (Lines With Other
Classes and Within This Class, "Space Discharge Igniters.")
708, Electrical Computers: Arithmetic Processing and
Calculating, subclass 540 for the use of a CRT in digital
arithmetical operations, and subclass 849 for the use of CRT
in function generation.
GLOSSARY:
AUXILIARY DISCHARGE ELECTRODE
An electrode which is connected in the circuit so that the
discharge is initiated between it and one of the principal
electrodes, the auxiliary discharge conditioning the
discharge space between the principal electrodes so that a
discharge between the principal electrodes can be
established.
DISCHARGE CONTROL DEVICE
Any means associated with the discharge device (for example
only, an electromagnet, a control grid or an auxiliary
discharge electrode) intended to be used to control or
influence the discharge between the principal electrodes of
the discharge device.
DISCHARGE CONTROL ELECTRODE
Any electrode which is designed to influence or control the
discharge between the principal electrodes. It may be a
control grid or an auxiliary discharge electrode. It may
depend for its effect on either its electro-static effect or
on the current flow thereto.
ELECTRIC SPACE DISCHARGE DEVICES
The shorter expression "DISCHARGE DEVICES" is used in these
definitions, are defined for the purpose of classification in
this class as including any device which is intended to have
an electrical current flow between two spaced electrodes, at
least part of the path followed by the discharge being
constituted by a gas, vapor, or vacuum.
GAS OR VAPOR DISCHARGE DEVICE
Any type of electric space discharge which, as claimed,
depends upon ionization of a gas or vapor for its operation.
Discharge devices which have their discharge electrodes in an
unconfined (non-enclosed) atmosphere as well as those having
their discharge electrodes in a confined (enclosed)
atmosphere are included in this definition.
HIGH-VACUUM TUBE
A vacuum tube evacuated to such a degree that its electrical
characteristics are essentially unaffected by gaseous
ionization.
LAMPS
Are defined for the purpose of classification in this class
as including a device designed for converting electrical
energy into ray energy, regardless of whether the ray energy
is within the visible or invisible part of the spectrum, but
excluding (1) generators of X-rays, and (2) generators
designed primarily to generate infrared rays. Lamps may be
in the form of electric space discharge devices, for which
see the next paragraph.
LOAD DEVICE
The device to which the system supplies electrical energy and
which, as claimed, constitutes the final or ultimate device
for utilizing the electrical energy of the system.
PRINCIPAL ELECTRODES
The "two spaced electrodes" referred to in the definition of
electric space discharge devices, between which the discharge
current is primarily intended to flow.
SUBCLASSES
Subclass:
1
This subclass is indented under the class definition.
Subject matter for supplying electric current and/or
potential to cathode-ray tubes, and/or cathode-ray tubes
combined with a circuit element which is structurally
combined with the cathode-ray tube so as to form a unitary
device.
(1) Note. Cathode-ray tubes are defined for the purpose of
classification in this subclass as an electric space
discharge device which is provided with means to form the
electric space discharge into a restricted beam or ray,
usually pencil like.
(2) Note. Where a system includes the cathode-ray tube
system as a part thereof, the patent is excluded and will be
found with the particular art which provides for the complete
system.
(3) Note. These subclasses do not include systems which are
limited by claimed subject matter to using the cathode-ray
tube for controlling the current and/or potential supplied to
a load device other than a cathode-ray tube, for which see
the class appropriate to the load device. Where the output
circuit claimed includes more circuit elements than is
necessary for the mere current and/or potential supply for
the cathode-ray tube, the system is considered to be limited
to use for supplying and/or controlling the current and/or
potential to load device and, therefore, excluded from these
subclasses.
(4) Note. Systems which include a cathode-ray tube having
either a discharge intensity modulating means or a discharge
focusing means and discharge deflecting means are excluded
from these subclasses where the claims include significant
features of the circuits for supplying the controlling
currents and/or potentials to the modulating means or
focusing means and the deflecting means from the controlling
source. For example, a system which includes means for
separating the video or image and synchronizing signals from
each other and applying them to the cathode-ray tube is
classified with the art to which the system relates; i.e.,
television if the purpose of the system is to reproduce an
optical image.
Included in these subclasses are systems which recite broadly
means for applying current and/or potential to the intensity
control means or the focusing means and to the deflecting
electrodes as well as patents which claim systems for
controlling the discharge intensity or the focusing solely in
dependence upon conditions in the cathode-ray tube current or
potential supply system, such as, for example, applying a
control potential to the intensity control means or focusing
means in dependence upon the rate of ray deflection or in
dependence upon the direction of ray deflection (blackout
circuits).
(5) Note. Merely claiming either the source of signal
potential for controlling the discharge intensity control
means, the focusing means, or the discharge deflecting means
will not exclude the patent from these subclasses as long as
the source of signal potential is claimed broadly so that it
could be any source of potential. Where the system claimed
includes a source of signal potentials and means to separate
the potentials and to apply one to the vertical sweep means,
and the other to the horizontal sweep means, the patent is
not excluded from these subclasses as long as the source of
signal potential is claimed broadly and is no more than a
source of periodic potentials. Where such synchronizing
circuit for the ray deflecting means is claimed in addition
to significant features of the ray modulating circuit, the
patent is excluded.
(6) Note. Merely claiming the source of signals to control
the start of the ray deflecting circuit as a synchronizing
potential will not exclude the patent from these subclasses
as long as the source of ray deflecting control potential is
claimed broadly and is only the control potential for the ray
deflecting means.
(7) Note. These subclasses do not include the combination
of a cathode-ray tube and mechanical or optical devices, such
as lenses, mirrors, et cetera, which are used with the
cathode-ray tube even if the system of supply for the
cathode-ray tube is claimed. Merely using a voltage to
deflect a cathode-ray beam so as to form a scale upon the
screen of the cathode-ray tube will not exclude the patent
from Class 315.
SEE OR SEARCH CLASS:
250, Radiant Energy, 281 for methods and apparatus for the
ionic separation or analysis of materials utilizing the mass
to electric charge ratio of ionic particles of the material.
313, Electric Lamp and Discharge Devices, subclass 2.1 for
the structural combination of a cathode-ray tube combined
with an electric space discharge device or an electric lamp
so as to form a unitary device, and subclasses 364+ for
cathode-ray tube structures.
324, Electricity: Measuring and Testing, subclass 88 for
devices for indicating the phase relations of electric
quantities, which devices comprise cathode-ray tubes, and
subclass 121 for cathode-ray galvanometers. Where the system
claimed includes means for applying a current or potential
under examination, or an unknown current or voltage, to the
cathode-ray tube, the system is not excluded from Class 315
unless some means is claimed to enable the desired
information to be derived other than merely observing the
trace of the ray on an uncharted luminous screen, or unless
the cathode-ray tube is claimed in combination with
significant features of the circuit to be investigated.
Merely naming the circuit to be investigated as a source of
pulsating or alternating current will not be sufficient to
exclude the patent from Class 315.
329, Demodulators, for demodulators which may include an
electron discharge device.
330, Amplifiers, subclass 43 and 44+ for amplifier systems
including electron beam tubes.
346, Recorders, appropriate subclass for cathode-ray devices
in combination with photos:graphic recording means. Class
346 provides for such combinations where the system for
operating the cathode-ray tube is claimed when the system is
of general application and not otherwise classified.
348, Television, 284, 325+, 377+, 379, 380+, and 805+ for
television systems which include a cathode-ray tube.
Cathode-ray tubes in combination with optical means, such as
lenses, mirrors, etc., are in Class 386, subclass 130 when
used for television, and Class 358, subclasses 500+ for
synchronizing in facsimile systems which include a
cathode-ray tube. See Notes (4), (5), and (6) above for the
line between subclasses 500+ and those subclasses (1+).
378, X-Ray or Gamma Ray Systems or Devices, 91 for X-ray
tube circuits.
Subclass:
3
This subclass is indented under subclass 1. Subject matter
in which cathode-ray tubes are combined with circuit
elements, all of which are structurally combined therewith to
form a unitary device, see main class definition, sections
(A) and (B).
(1) Note. The circuit element may be mounted within or on
the base or envelope of the cathode-ray tube.
(2) Note. These subclasses include the combination of a
cathode-ray tube load device and a circuit element where the
tube and the circuit element are formed of separable parts,
but are provided with means for fastening or assembling the
parts together to form a unitary device.
(3) Note. Examples of devices considered to be circuit
elements are electric switches, resistances, capacities,
inductors, transmission lines of the distributed parameter
type (e.g., coaxial lines), waveguides, antennas,
transformers, structures formed so as to act as if possessed
of distributed inductance and capacitance (e.g., resonators)
and any other circuit element.
(4) Note. The circuit combined with the cathode-ray tube
need not be a circuit element to be used in the circuit of
the cathode-ray tube load device, but may be provided with
separate terminals so as to be usable in any desired
relation.
(5) Note. This and the indented subclasses include
cathode-ray tubes wherein the electrodes and/or the electrode
leads are formed so as to function as inductances. This and
the indented subclasses do not include cathode-ray tubes
wherein the electrodes are formed of resistive material and
no other circuit element is combined with the cathode-ray
tube.
(6) Note. Patents claiming a cathode-ray tube in
combination with a separable socket receptacle or connector
for the cathode-ray tube, the socket receptacles or connector
including a circuit element, are not classified in these
subclasses, but will be found either in subclass 1 or in the
other subclasses under subclass 1.
SEE OR SEARCH THIS CLASS, SUBCLASS:
32 and indented subclasses for other types of electric
discharge devices and for electric lamps combined with
circuit elements, all of which are structurally combined to
form a unitary device.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 365 provides for
cathode- ray tubes which have a photosensitive electrode.
Included in these subclasses in Class 313 are cathode-ray
tubes where the photosensitive electrode is not in physical
contact with a conductive supporting base or where the
conductive supporting base is of high resistance material.
No effort has been made to separate the cathode-ray tubes
with photosensitive electrodes such as mosaic electrodes from
each other on the basis of whether or not the electrode has a
capacitor effect, a resistance effect, or is conductively
connected to its lead-in conductor. All such cathode-ray
tube structure has been placed in subclasses 365+ of Class
313.
Subclass:
3.5
This subclass is indented under subclass 3. Subject matter
in which a transmission line or device arranged to propagate
a traveling electromagnetic wave is constructed and arranged
to have a wave component the velocity of which is reduced in
comparison to the wave velocity in free space; and in
conjunction therewith are means for generating an electron
beam whose path is in such proximity to the path of said
traveling wave component as to permit an exchange of energy
between such beam and the traveling wave propagated along the
transmission path.
(1) Note. Transmission line or device is defined to include
any device which is used to guide or constrain electrical
wave energy and to convey the energy from one place to
another. Included are conductors and waveguides.
(2) Note. The transmission device may be constructed as a
spiral or helix so that the wave has an axial velocity
component along the helix which is lower than the free space
velocity of the wave, or the transmission device may be
loaded as by inductive members to reduce the velocity of the
traveling wave.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3 for cathode-ray tubes of the traveling wave type not
included in this subclass or subclasses 4+.
4 for other cathode-ray tubes which have structurally
combined therewith an inductive or distributed parameter-type
inductive structure (e.g., waveguide, coaxial cable, or
parallel wire transmission line). See subclasses 5+ for
traveling wave-type cathode-ray tubes having a hollow
transmission line (e.g., waveguide) for a traveling wave, and
having an electron beam means which is transverse to the
transmission line so that energy may be exchanged between the
beam and the traveling wave.
39.3 for other traveling wave-type electronic tubes having a
velocity reducing-type transmission line but which do not
have the space discharge path focussed or otherwise shaped
into a beam.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, subclass 600 for miscellaneous
circuits with particular beam tube structure.
330, Amplifiers, subclass 43 for amplifier systems having
traveling wave tubes. See Lines With Other Classes and Within
This Class and References to Other Classes in the Class
Definition of Class 330.
331, Oscillators, subclass 82 for oscillation generating
systems using beam tubes of the traveling wave type.
332, Modulators, especially subclass 134, 147+, and 165+ for
modulator systems using traveling wave tubes of the type
classified in this subclass.
333, Wave Transmission Lines and Networks, subclass 22 for
transmission lines of the distributed parameter type (e.g.,
waveguides, long lines) having dissipating terminations,
subclasses 138+ for delay networks, subclasses 32+ for
impedance matching networks for transmission lines, subclass
81 for transmission lines of the long line with an attenuator
means, and attenuators especially designed for use over a
frequency band or for use in transmission lines of the
distributed parameter type, and subclasses 236+ for the
structure of transmission lines of the distributed parameter
type.
Subclass:
3.6
This subclass is indented under subclass 3.5. Subject matter
which is provided with a plurality of transmission lines or
devices, or which has the transmission line or device
constructed so as to have a section which has different
characteristics from another section.
(1) Note. For example, the device may have a plurality of
beams and a plurality of transmission lines, or a single beam
with a plurality of transmission lines arranged parallel to
each other or in series relation along the path of the beam,
or may have the transmission line arranged to have different
retarding times along its length or have portions provided
with coatings or other means to provide different attenuation
at different portions of the line.
(2) Note. This subclass does not include subject matter
under subclass 3.5 where the transmission line or device is
only provided with impedance matching means designed to
facilitate the coupling of the transmission line or device to
an input or output coupling means (even though such impedance
matching means involves differences in structure in the
transmission line or device such as changing the spacing of
the turns of a spiral transmission line). Such subject
matter is classified in subclass 3.5 in the absence of other
structure, causing classification in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.16 5.27, 5.28, and 5.39+, for traveling wave tubes having a
plurality of hollow transmission lines (e.g., waveguides), at
least one line being designed to propagate a traveling wave,
and having means producing an electron beam transverse to the
transmission lines so that energy may be exchanged between
the beam and the energy in the transmission lines.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, subclass 22 for
transmission lines of the distributed parameter type having
dissipating terminators, subclass 81 for transmission lines
and devices with an attenuator means and attenuators
especially designed for use with transmission lines and
devices of the distributed parameter type, and subclasses
236+ for the structure of transmission lines and devices of
the distributed parameter type.
Subclass:
4
This subclass is indented under subclass 3. Subject matter
wherein the circuit element structurally combined with the
cathode-ray tube is an inductor or a structure formed so as
to act as if it possessed inductance with or without
capacitance.
(1) Note. The inductive circuit structure may be a
waveguide, a coaxial line, a hollow resonator, or a parallel
wire transmission line or any other structure having or
acting as if it had inductance or inductance and
capacitance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39 for other discharge devices which have structurally
combined therewith a waveguide, coaxial cable, or other
transmission line having distributed inductance and
capacitance.
39.51 for magnetrons which have an electrode with a portion
formed to provide both distributed inductance and capacitance
and a magnetic means for influencing the space discharge.
40 for other discharge devices having an electrode formed as
an inductor or as a structure having inductive impedance.
62 and the subclasses specified in the notes to the
definition of that subclass, for other discharge devices
which are structurally combined with an inductive impedance.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, 219 for electric
resonators of the distributed parameter type, per se, and
subclasses 236+ for other transmission line structure having
distributed inductance and capacitance such as waveguides,
coaxial cables, etc.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors.
Subclass:
5
This subclass is indented under subclass 4. Subject matter
wherein the inductor or inductive and capacitive device
constitutes a substantially closed hollow conductive
structure having, or acting as if it had distributed
inductance and/or capacitance, the ray traversing at least
part of the hollow space, and usually passing through the
conductive structure by openings provided in the conductive
structure.
(1) Note. The conductive structure may be a waveguide,
cavity resonator, or coaxial line. An electromagnetic field
usually exits in the hollow space, energy being transferred
between the ray and the field. A parallel wire Lecher-type
line with the ray passing between the wires is not, in
itself, a hollow distributed parameter device for
classification here, but rather is classified in subclass 4
above. However, where the Lecher line has added portions to
provide a hollow space or includes holes in its wires for
passage of the ray, classification is in these subclasses
(5+).
(2) Note. For classification here the ray may originate
within the device and either pass beyond or terminate within
the device; or the ray may originate beyond the device and
either pass through or terminate within the device. Where the
ray merely passes across an opening in the hollow distributed
parameter device without entry, classification is in subclass
4 above, even though a coupling exists between the ray and
the electromagnetic field within the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3.5 for traveling wave tubes with delay-type transmission
lines, which may have distributed parameters.
14 for other cathode-ray tube systems wherein a plurality of
means are provided accelerating and/or decelerating the
electrons in the cathode-ray.
39.51 and 40, for other discharge devices having an
electrode formed as an inductive impedance or inductive
structure.
41 for other electric discharge devices having an inductive
impedance which is structurally combined with the discharge
device connected between two of the electrodes of the
discharge device.
SEE OR SEARCH CLASS:
330, Amplifiers, 45 for amplifiers having an electron beam
tube coupled to cavity resonator, including those of types
classified in this and indented subclasses.
331, Oscillators, 81 for electrical oscillators using a beam
tube wherein the beam of charged particles passes through or
into a hollow distributed parameter device, particularly
indented subclass 83 wherein the beam passes through plural
cavities. See also the reference to Class 331 under "SEARCH
CLASS" in the class definition.
332, Modulators, especially 131, 147+, and 165+ for electron
bunching-type modulators. See also (3) Note under the Class
Definition.
Subclass:
5.11
This subclass is indented under subclass 5. Subject matter
including a secondary emission electrode on which the ray
impinges to produce another ray or to augment the impinging
ray.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.14 for a hollow distributed parameter device having a
plurality of rays passing through or in.
12.1 for cathode-ray tube circuits generally with secondary
emission.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 399 for
cathode-ray tubes, per se, having a secondary emission
electrode.
Subclass:
5.12
This subclass is indented under subclass 5.11. Subject
matter wherein the ray passing through or in the hollow
device impinges on a secondary emission electrode to produce
another ray which passes through or in the same device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.18 for a hollow distributed parameter device having a ray
passing through or in, and returning to the device by other
than secondary emission means.
Subclass:
5.13
This subclass is indented under subclass 5. Subject matter
including a magnetron, the hollow device through which the
ray passes constituting the resonator of the magnetron.
(1) Note. The subject matter of this subclass usually is a
magnetron having an additional cathode projecting a ray
through the magnetron resonator for tuning purposes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.14 for a hollow distributed parameter device having a
plurality of rays passing through or in.
5.53 for a hollow distributed parameter device having a ray
passing through or in and involving tuning.
39.51 for distributed parameter resonator type magnetrons,
and especially subclass 39.57 for such magnetrons with
variable tuning by electron emission in or adjacent the
resonator space, no means being included to form the emission
into a restricted beam or ray.
Subclass:
5.14
This subclass is indented under subclass 5. Subject matter
wherein each of a plurality of distinct rays pass through or
in a single hollow device.
(1) Note. A plurality of rays exit as when projected from
separate or distinguishable cathodes. When a single cathode
projects a ray which is broken into a plurality of pencil
rays as by an apertured mask or other dividing structure,
these pencil rays are not considered plural for purposes of
classification in this subclass. When two distinct cathodes
produce each a ray which merges over at least a part of the
ray path, classification is not barred from this subclass.
See especially indented subclass 5.15. A mere plurality of
structures each having a hollow distributed parameter device
with a ray passing therethrough is not classified here, but
elsewhere under subclass 5.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.12 for a hollow distributed parameter device with a ray
passing through or in, and a second ray also passing through
or in and produced by the first ray through secondary
emission.
5.13 for magnetrons having a ray passing through or in the
hollow distributed parameter portion.
5.18 for a hollow distributed parameter device, where the
ray, after passing through or in, returns to the hollow
device, and especially indented subclass 5.23 where the
device is thermally tuned as by a cathode-ray.
13.1 for plural ray cathode-ray tube circuits generally.
Subclass:
5.15
This subclass is indented under subclass 5.14. Subject
matter wherein the plurality of rays are projected along the
same path, at least during passage in or through the hollow
device.
(1) Note. Mere intersection in the hollow device of two
rays projected in different directions is not sufficient for
classification here, but rather in subclass 5.14 above.
Subclass:
5.16
This subclass is indented under subclass 5.14. Subject
matter together with an additional hollow distributed
parameter device, the plurality of rays passing through or in
the additional device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.27 and 5.28, for plural hollow distributed parameter
devices having a ray passing through or in, which ray is
deflected or reflected.
5.39 for plural hollow distributed parameter devices
generally having a ray passing through or in.
Subclass:
5.17
This subclass is indented under subclass 5.16. Subject
matter wherein one of the rays is projected in a reverse
direction from the other ray or rays through the respective
hollow devices, to constitute a feedback coupling from the
output to the input device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.44 for plural hollow distributed parameter devices having
a ray passing through or in, and a feedback connection
between the devices.
Subclass:
5.18
This subclass is indented under subclass 5. Subject matter
wherein substantially all of the ray passes from the interior
of the hollow device and beyond the exterior of the device,
and then returns to the interior of the device.
(1) Note. The ray may return to the hollow device by the
same path as it leaves the device as a result of reflection,
or the ray may follow a curved path as a result of
deflection, or the ray may follow a straight path, the device
being formed to intercept the ray after the ray passes out of
the device.
(2) Note. For classification in this and the indented
subclasses, it is necessary that the ray return to the
interior of the device. When the ray merely returns to
engage the exterior of the device, classification is in
subclasses 5.24+ or 5.33.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.12 for a hollow distributed parameter device with a ray
returning thereto as a result of secondary emission.
5.24 for a hollow distributed parameter device whose ray
passing through or in is deflected or reflected. See (2)
Note above.
SEE OR SEARCH CLASS:
331, Oscillators, subclass 84 for electric wave generating
systems utilizing a charged particle or electron beam tube of
the reflex type.
Subclass:
5.19
This subclass is indented under subclass 5.18. Subject
matter wherein the ray in returning to the hollow device
retraces the path followed in leaving the device, and/or
wherein the ray reenters the hollow device through the same
aperture as it left the device.
Subclass:
5.21
This subclass is indented under subclass 5.19. Subject
matter wherein the hollow device is resonant at a particular
frequency, together with structure for changing or permitting
change in the resonant frequency.
(1) Note. Reflex klystrons whose frequency is controlled by
variation of the repeller voltage are not classified here,
but in subclass 5.19, if otherwise within the scope of
subclass 5.19.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.46 for plural tunable hollow distributed parameter devices
having a ray passing through or in.
5.53 for single tunable hollow distributed parameter devices
generally having a ray passing through or in.
Subclass:
5.22
This subclass is indented under subclass 5.21. Subject
matter, wherein the hollow device has a flexible wall to
adjust the shape or a dimension of the device, usually for
varying the width of the gap in the device across which the
cathode-ray travels.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.48 for plural hollow distributed parameter devices having
a ray passing through or in, at least one of the devices
having a flexible wall for tuning purposes.
5.54 for a single plural hollow distributed parameter device
having a ray passing through or in, and having a flexible
wall for tuning purposes.
Subclass:
5.23
This subclass is indented under subclass 5.22. Subject
matter including structure which is connected to or part of
the flexible wall for moving this wall in response to a
temperature change induced in the structure, or for
compensating for movement of this wall due to temperature
effects.
Subclass:
5.24
This subclass is indented under subclass 5. Subject matter
wherein structure is provided for changing the path of
substantially the entire ray from a first direction to a
second direction.
(1) Note. Only patents are classified here the entire cross
section of whose ray is deflected from a first to a second
direction. Focusing, concentrating, dispersing, and velocity
sorting the ray are classified elsewhere. See for example
subclasses 5.34+ and 5.38.
(2) Note. The deflection may be greater than 90 deg. and
may even be 180 deg. to constitute a complete reflection of
the ray. However, see subclasses 5.18+ for subject matter
under subclass 5 where the ray is reflected or deflected to
return to the device.
(3) Note. The deflected ray may also be rotated, as for
example, in a conical path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.11 for a hollow distributed parameter device with a ray
passing through or in, whose effective direction is changed
by a secondary emission grid.
5.18 for a hollow distributed parameter device wherein the
ray after passing through or in is deflected or reflected to
return to the device. See also (2) Note above.
5.34 for a hollow distributed parameter device with a ray
passing through or in which is focused or concentrated. See
also (1) Note above.
5.38 for a hollow distributed parameter device with a ray
passing through or in, and including an anode which disperses
or scatters the ray therein.
364 for cathode-ray tube circuits generally, wherein the
cathode is deflected.
SEE OR SEARCH CLASS:
331, Oscillators, subclass 80 for electric wave generating
systems utilizing a charged particle or electron beam tube
with beam sweeping or deflecting means.
Subclass:
5.25
This subclass is indented under subclass 5.24. Subject
matter wherein the hollow device is provided with an opening
in its wall, the ray sweeping between the opening and the
wall to be alternately passed and blocked.
Subclass:
5.26
This subclass is indented under subclass 5.24. Subject
matter wherein the hollow device deflects the ray passing
through or in.
Subclass:
5.27
This subclass is indented under subclass 5.26. Subject
matter including a plurality of hollow distributed parameter
devices through or in which a single ray passes, at least one
of the hollow devices deflecting the ray.
(1) Note. The hollow devices may be arranged to
successively deflect the ray passing through or in or one
device may be arranged to deflect the ray while the other
device collects the deflected ray.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.16 for plural hollow distributed parameter devices wherein
each of a plurality of rays passes through all the devices.
5.28 for plural hollow distributed parameter devices having
a single ray passing through or in, the ray being deflected
by structure other than the device.
5.39 for plural hollow distributed parameter devices in
general having a single ray passing in or through.
Subclass:
5.28
This subclass is indented under subclass 5.24. Subject
matter, including a plurality of hollow distributed parameter
devices having a single ray passing through or in.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.16 for plural hollow distributed parameter devices,
wherein each of a plurality of rays passes through all the
devices.
5.27 for plural hollow distributed parameter devices having
a single ray passing through or in, wherein at least one of
the devices deflects the ray.
5.39 for plural hollow devices in general having a single
ray passing in or through.
Subclass:
5.29
This subclass is indented under subclass 5. Subject matter
wherein the ray has a cross sectional dimension which is
significantly related to and an appreciable part of the
wavelength of signal energy in the cathode-ray tube, and/or
wherein the ray has a significant shape; the dimension and/or
shape usually persisting over the entire path of the ray, and
at least during passage through the device.
(1) Note. The patents in this main subclass (5.29) usually
have a flat weblike ray.
(2) Note. The particular shape and/or dimension is usually
produced by a cathode of particular shape and/or dimension;
e.g. elongated, annular, or cylindrical cathode.
(3) Note. Subject matter including grids of distributed
parameter devices which have openings peculiarly adapted to
pass rays of a particular transverse shape or dimension are
classified in this subclass, the ray or the means producing
the ray being recited in the claim.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.14 for a hollow distributed parameter device with plural
rays passing through or in, the rays having a particular
transverse dimension and/or shape.
5.24 for a hollow distributed parameter device with a ray
passing through or in, wherein the deflection of the ray
provides a ray path having a particular shape or dimension,
such as a particular bent or spiral ray.
5.37 for a distributed parameter device with a ray passing
through or in, wherein the grids have a particular shape or
dimension not related to the transverse shape or dimension of
the ray. See (2) Note above.
Subclass:
5.31
This subclass is indented under subclass 5.29. Subject
matter, wherein the ray is formed as a hollow tube with the
cathode at one end, which ray may be circular or rectangular
in cross section.
Subclass:
5.32
This subclass is indented under subclass 5.29. Subject
matter, wherein the ray is formed as a flat disk with the
cathode positioned in a plane of the disk, and at the center
of the disk or coaxial with the center of the disk.
Subclass:
5.33
This subclass is indented under subclass 5. Subject matter
wherein the hollow device also constitutes a ray anode or
cathode, or wherein the ray anode or cathode is an integral
part of the hollow device, or wherein the ray anode or
cathode is mounted in a wall of the hollow device and has an
appreciable portion within the interior space of the hollow
device.
(1) Note. Where the ray anode or cathode is integral with
the hollow device, but entirely external to the hollow space
and separated from the hollow space by a grid, classification
is not in this subclass, but in subclasses 5.37 or 5.38
below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.38 for a hollow distributed parameter device with a ray
passing in or through, and including a particular anode or
collector structure.
Subclass:
5.34
This subclass is indented under subclass 5. Subject matter
wherein the cathode-ray tube is provided with means for
focusing and/or concentrating the cathode-ray.
(1) Note. Concentrating or focusing the cathode-ray is used
in this definition to mean either to reduce the cross section
area of the cathode-ray across its width or to bring the ray
to a focus; that is, the ray is either converged toward a
point, or is diverged as if it had originated at a point.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.24 for a hollow distributed parameter device wherein the
entire cross section of the ray passing through or in is
substantially uniformly deflected in one direction.
5.41 for hollow distributed parameter devices wherein the
ray passing through or in is accelerated or decelerated
uniformly over its cross sectional area.
14 for cathode-ray tube circuits generally with plural
concentrating, accelerating, and/or decelerating stages.
382 for cathode-ray tube circuits generally including means
for focusing or concentrating the ray.
Subclass:
5.35
This subclass is indented under subclass 5.34. Subject
matter, wherein the focusing or concentrating means provides
a magnetic field in a direction to focus or concentrate the
ray.
(1) Note. This focusing means may be a permanent magnet, or
a conducting coil or loop with or without a magnetic core or
yoke.
Subclass:
5.36
This subclass is indented under subclass 5. Subject matter
wherein the hollow device and its electrodes are readily
separable.
(1) Note. The patents classified here usually disclose disc
electrodes projecting through the envelope of a tube, and a
cavity resonator or waveguide having its opposite walls
secured to the respective electrodes, as by screw or spring
clamping.
Subclass:
5.37
This subclass is indented under subclass 5. Subject matter
wherein the hollow device is provided with a grid and
significant ray reacting details of this grid are claimed.
(1) Note. The grids of this subclass are only those which
are associated with the device at its gap, and through which
the ray passes. Accelerating or focusing grids disposed
along the ray path but not an intimate part of the hollow
device, are not within the scope of this subclass.
Subclasses 5.34+ and 5.41, respectively, provide for ray
focusing and concentrating and ray accelerating between
hollow devices generally within the scope of subclass 5.
(2) Note. A hollow device provided with a mere plurality of
grids is not considered to be a significant grid detail for
classification here. A particular relationship between the
plurality of grids must be claimed or significant details
must be claimed for classification in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.11 for a hollow distributed parameter device having a ray
passing through or in together with a secondary emission
grid.
5.24 for a hollow distributed parameter device wherein a
grid deflects the ray passing through or in.
5.29 for a hollow distributed parameter device with a ray of
a particular transverse shape or electrical dimension passing
through or in, the grids of the device having openings shaped
to pass a ray of such shape or dimension.
5.34 for a hollow distributed parameter device wherein grids
generally focus or concentrate the ray passing through or in.
See also (1) Note above.
5.36 for a hollow distributed parameter device through or in
which a ray passes, the device being removable from its
grids.
5.41 for hollow distributed parameter devices with a grid
for accelerating or decelerating the ray between the devices.
See also (1) Note above.
Subclass:
5.38
This subclass is indented under subclass 5. Subject matter
including an anode or collector, significant details of the
anode or collector being claimed.
(1) Note. The anode or collector as here used is the
electrode which the ray strikes after passing into or through
the last hollow device, and where the particles forming the
ray are removed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.33 for a hollow distributed parameter device with a ray
passing through or in which is also a ray anode or
collector.
Subclass:
5.39
This subclass is indented under subclass 5. Subject matter
including a plurality of hollow distributed parameter devices
with the ray passing through or in at least two of the
devices.
(1) Note. For classification here the ray must pass through
or in at least two of the devices. A system of two devices
with the ray passing through or in only one device, the other
device being merely coupled to the ray as by being connected
to the cathode and control grid, without the ray passing
through or in the other device is not classified here, but
elsewhere under subclasses 5+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.14 for one or more hollow distributed parameter devices
with a plurality of rays passing through or in and especially
indented subclasses 47+ for a plurality of such devices.
5.27 for plural hollow distributed parameter devices, one of
which deflects the ray passing through or in.
5.28 for plural hollow distributed parameter devices, where
the ray passing through or in is deflected.
5.33 for plural distributed parameter devices, one of the
devices being a ray anode or cathode.
5.51 for a hollow distributed parameter device with the ray
passing through or in, the device having a plurality of
gaps.
SEE OR SEARCH CLASS:
331, Oscillators, 6 and 83 for electric wave generating
systems utilizing a charged particle or electron beam tube
wherein the beam passes through plural hollow resonators
(e.g., Klystron).
Subclass:
5.41
This subclass is indented under subclass 5.39. Subject
matter including structure for increasing or decreasing the
velocity of the ray particles uniformly over the
cross-section area of the ray during their passage between
the hollow devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.34 for hollow plural distributed parameter devices with
structure for focusing or concentrating the ray between the
devices, which may involve accelerating or decelerating the
beam differently over its cross section.
5.37 for hollow distributed parameter devices with
particular grid structure which may accelerate or decelerate
the ray particles.
5.42 for plural hollow distributed parameter devices wherein
the devices are excited from a common source for accelerating
the ray during passage across the gaps of the respective
devices.
14 for cathode-ray tube circuits generally with a plurality
of means for accelerating and/or decelerating the
cathode-ray.
Subclass:
5.42
This subclass is indented under subclass 5.39. Subject
matter wherein the interiors of the hollow devices are
excited directly from a common source, the phase of the
energy as applied to the interiors of the respective devices
being such as to accelerate the ray during passage across the
gaps of the respective devices, whereby the ray is
progressively accelerated during passage through the
devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.41 for plural distributed parameter devices wherein the
ray is accelerated or decelerated between the devices.
Subclass:
5.43
This subclass is indented under subclass 5.39. Subject
matter wherein at least two of the hollow devices are tuned
to different resonant frequencies.
(1) Note. Usually the resonant frequencies are harmonically
related, and devices so related may be used in frequency
multipliers.
Subclass:
5.44
This subclass is indented under subclass 5.39. Subject
matter wherein an electrical connection exists between the
interiors of the hollow devices to transmit electrical energy
between the devices, but in a direction opposite to that
which the ray transmits.
(1) Note. The feedback connection may be either
regenerative, degenerative, or sufficient to produce
oscillations. If the feedback connection is a ray, in
addition to the ray normally passing through the devices,
classification is in subclass 5.17 above.
(2) Note. If the claims recite even broadly a load or
output fed by the cathode-ray tube circuit herein classified,
the load or output being disclosed as external to the
envelope of the cathode-ray tube, classification is in Class
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses, or in Class
331, Oscillators, appropriate subclasses, depending whether
the energy fed back is insufficient or sufficient
respectively to sustain oscillation. However, a coupling
probe or loop to abstract energy from the output device is
not sufficient to preclude classification here (5.44), even
though designated as an output or load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.17 for devices with a feedback connection therebetween,
the connection being by a ray in addition to the ray normally
passing through the devices. See also (1) Note above.
SEE OR SEARCH CLASS:
330, Amplifiers, 45 for amplifiers having electron beam
tubes coupled to cavity resonators, including those with
feedback circuits.
331, Oscillators, appropriate subclasses for electrical
oscillators utilizing positive feedback to generate
oscillations. See also (2) Note above.
Subclass:
5.45
This subclass is indented under subclass 5.44. Subject
matter including three or more hollow distributed parameter
devices through which the ray passes with an electrical
connection between at least two of the devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.49 for three or more hollow distributed parameter devices
in general through which a ray passes.
Subclass:
5.46
This subclass is indented under subclass 5.39. Subject
matter, wherein at least one of the hollow devices is
resonant at a particular frequency together with structure
for changing or permitting change in the resonant frequency.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.13 for a magnetron having a ray passing in or through its
resonator for tuning purposes.
5.21 for a tunable hollow distributed parameter device
wherein the ray returns to the device after passing through
or in it.
5.53 for a single hollow distributed parameter device having
a ray passing through or in, and which is tunable.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 250 for wave meters utilizing
tunable coupling networks or adjustable long line sections as
resonators.
333, Wave Transmission Lines and Networks, 219 for
resonators of the distributed parameter type whose resonant
frequency may be adjusted, and which are adpated for passage
of a cathode-ray through or in.
334, Tuners, appropriate subclasses for tuned networks for
use in wave energy apparatus and comprising inductance and
capacitance elements in circuit arrangement and in which
structure is provided for adjusting one or both of these
elements for changing the mean resonant frequency of the
circuit.
Subclass:
5.47
This subclass is indented under subclass 5.46. Subject
matter wherein at least two of the hollow resonant devices
include frequency changing structure and wherein the
frequency changing structures of the respective devices are
linked together; e.g., mechanically or electrically, so that
the resonance frequencies of the respective devices are
changed simultaneously.
(1) Note. Two such devices whose tuning is independently
adjustable but which may each be adjusted together to change
the resonant frequencies as by manual manipulation are not
classified in this subclass. For classification here, there
must be a positive linkage between the devices to produce
simultaneous frequencies change, although independent
frequency change may also be present in addition.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclass 1, 10+, and 20
through 110 for mechanical structure for tuning a plurality
of distributed parameter devices.
Subclass:
5.48
This subclass is indented under subclass 5.46. Subject
matter wherein at least one of the hollow devices has, for
tuning purposes, a flexible wall to adjust the shape of a
dimension of the device, usually for varying the width of the
gap in the device across which the cathode-ray travels.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.22 for a hollow distributed parameter device with a
flexible wall, wherein the ray returns to the device after
passing through or in.
5.47 for a plurality of hollow distributed parameter devices
having flexible walls, which are linked together for
simultaneous adjustment of the tuning of the devices.
5.54 for a single hollow distributed parameter device
through or in which a ray passes, the device having a
flexible wall.
Subclass:
5.49
This subclass is indented under subclass 5.39. Subject
matter including at least three hollow distributed parameter
devices with the ray passing through or in at least three of
the devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.45 for at least three hollow distributed parameter devices
as above defined with feedback coupling between at least two
of the devices.
Subclass:
5.51
This subclass is indented under subclass 5. Subject matter
wherein the hollow device has a plurality of gaps displaced
along the path of the ray, each gap providing an interaction
between the ray and the interior of the device.
(1) Note. Usually the gaps are formed by a drift tube
between the gaps and by reentrant portions surrounding the
ray between the gaps and the walls of the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.44 for plural hollow distributed parameter devices with
the ray passing through each device and feedback coupling
between the devices.
5.52 for a hollow distributed parameter device with the ray
passing through or in and having a reentract portion
surrounding the ray.
Subclass:
5.52
This subclass is indented under subclass 5. Subject matter
wherein the hollow device has a portion of its wall extending
inwardly towards an opposing wall, the portion surrounding
the cathode-ray as it enters or leaves the device.
(1) Note. The purpose of the reentrant portion is to
shorten the gap coupling the cathode-ray to the device, to
shield the cathode-ray, and to increase the capacity of the
device. Two reentrant portions are often provided, extending
toward each other from opposing walls to provide the gap
therebetween.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.51 for a hollow distributed parameter device with plural
gaps, and having a reentrant portion surrounding the ray
passing through the device.
Subclass:
5.53
This subclass is indented under subclass 5. Subject matter
wherein the hollow device is a resonator having an adjustable
shape or dimension to permit variation of the resonant
frequency, or wherein the device includes or is combined with
structure which varies the resonant frequency.
(1) Note. The width of the resonator gap across which the
cathode-ray travels may be varied to alter the capacity
shunting the resonator, thus changing the resonator
frequency.
(2) Note. The structure which varies the resonant frequency
may be another resonator. See subclasses 5.39+ for plural
resonators where the ray passes through the plurality of
resonators.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.13 for a magnetron having a ray passing through or in the
hollow distributed parameter device for tuning purposes.
5.14 for a hollow distributed parameter device having an
additional ray passing through or in for tuning purposes.
5.21 for a tunable hollow distributed parameter device
having a ray passing through or in, the ray returning to the
device.
5.46 for a plurality of hollow distributed parameter devices
at least on being tunable and a single ray passing through
each.
39 for a discharge device load generally (noncathode-ray
tube) with a distributed parameter line, which is tunable.
39.55 for distributed parameter resonator type magnetrons
with variable tuning.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 250 for wave meters utilizing
tunable coupling networds or adjustable long line sections as
resonators.
330, Amplifiers, subclass 45 for amplifier systems having
electron beam tubes coupled to cavity resonators including
those having subject matter of the type classified in this
subclass.
333, Wave Transmission Lines and Networks, 219 for
resonators of the distributed parameter type whose resonant
frequency may be adjusted, and which are adpated for passage
of a cathode-ray therethrough.
334, Tuners, appropriate subclasses for tuned networks for
use in wave energy apparatus and comprising inductance and
capacitance elements in circuit arrangements and in which
structure is provided for adjusting one or both of these
elements for changing the mean resonant frequency of the
circuit.
Subclass:
5.54
This subclass is indented under subclass 5.53. Subject
matter wherein the hollow device has a flexible wall to
adjust the shape or a dimension of the device, usually for
varying the width of the gap in the device across which the
cathode-ray travels.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.22 for a hollow distributed parameter device having a ray
passing through or in, which ray returns to the device, the
device having a flexible wall to adjust the tuning.
5.48 for a plurality of tunable hollow distributed parameter
devices and a single ray passing through each, and at least
one of the devices having a flexible wall for tuning.
Subclass:
7
This subclass is indented under subclass 4. Subject matter
wherein the cathode-ray tube is provided with a pair of
electrostatic deflecting electrodes and an inductive
impedance or structure is connected to the deflecting
electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
364 for other cathode-ray tube circuits provided with means
for periodically deflecting the cathode-ray by pulsating
and/or alternating current.
Subclass:
8
This subclass is indented under subclass 1. Subject matter
wherein the system is provided with means, or where there is
shielding means for part of the system to prevent stray
electromagnetic fields from deflecting the cathode-ray from
the desired path.
(1) Note. Where the patent claims the source of
interference, as a transformer, etc., but does not claim its
connection in its own circuit, the patent is included in this
subclass. Where the device causing the interference is
claimed as connected in its own system, the patent is
classified with the art which provides for the combination of
a cathode-ray tube system and the system which includes the
source of interference. If the interfering device is in the
circuit of the cathode-ray tube, the patent is classified in
this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85 for other systems under the class definition wherein the
system includes means, or where there is shielding means for
part of the system, to prevent radiation of electromagnetic
waves to and/or from the system or some part thereof.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 364 for
cathode-ray tubes provided with shielding means for the tube
and subclass 313 and the subclasses specified in the Notes
thereto for miscellaneous discharge devices provided with
shielding means.
Subclass:
8.51
Pulse storing:
This subclass is indented under subclass 1. Subject matter
wherein the cathode-ray tube system accumulates or stores
pulse energy for later retrieval.
SEE OR SEARCH THIS CLASS, SUBCLASS:
84.51 for electrical pulse storage systems of the gaseous
discharge tube type.
SEE OR SEARCH CLASS:
178, Telegraphy, subclass 17.5 for telegraph transmitters
having means for accumulating information in advance of
actual transmission.
324, Electricity: Measuring and Testing, 111 for electrical
systems having means for storing electrical energy for
measuring purposes.
341, Coded Data Generation or Conversion, subclass 12 for a
cathode-ray tube digital pattern reading-type coded data
convertor or generator.
365, Static Information Storage and Retrieval, subclass 118
and 128 for reading/writing of information by means of an
electron beam.
708, Electrical Computers: Arithmetic Processing and
Calculating, 100 and 800+, respectively, for digital or
analog calculators with electrical means for storing
numerical data in electric pulse form for a later retrieval.
Subclass:
8.61
Plural cathode-ray tubes or ray-type tubes:
This subclass is indented under subclass 8.51. Subject
matter wherein the system comprises two or more cathode-ray
tubes or which system utilizes a cathode-ray tube having two
or more cathode-rays.
SEE OR SEARCH THIS CLASS, SUBCLASS:
9 for cathode-ray tube systems in general having a plurality
of cathode-ray tubes connected in the system.
13.1 for cathode-ray tube systems in general wherein the
cathode-ray tube is provided with means for forming a
plurality of separate cathode-ray beams.
Subclass:
9
This subclass is indented under subclass 1. Systems having a
plurality of cathode-ray tube devices connected in the
system.
(1) Note. One of the cathode-ray tubes may be in the supply
circuit or control circuit of the other cathode-ray tube, or
both cathode-ray tubes may constitute load devices in the
circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8.61 for plural cathode-ray tube systems utilized in storing
or code translation systems.
13.1 for cathode-ray tube systems wherein the cathode-ray
tube is provided with a plurality of cathode-ray beams.
324 and indented subclass, and the subclasses specified in
the notes to the definitions of those subclasses for systems
under the class definition having plural discharge device
loads.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 2.1, for
structures which include a plurality of cathode-ray tubes
which are structurally combined so as to form a unitary
device (e.g., such as being enclosed within a common
envelope) and subclasses 409+ for cathode-ray tubes which are
provided with a plurality of cathodes. See subclasses 409+
where the cathode-ray tube has means to form a plurality of
cathode-ray beams.
377, Electrical Pulse Counters, Pulse Dividers or Shift
Registers: Circuits and Systems, subclass 99 for plural
cathode-ray tube systems utilized in pulse counting.
Subclass:
10
This subclass is indented under subclass 1. Subject matter
wherein the system includes means for controlling the
operation of the cathode-ray device by means of radiant
energy.
(1) Note. The cathode-ray tube may include a radiant energy
ray sensitive electrode, that is, the operation of the
cathode-ray device is altered when subjected to radiant
energy, or the system may include a radiant energy sensitive
device, such as a photocell, which controls the operation of
the cathode-ray tube when subjected to radiant energy.
(2) Note. The term "radiant energy" as used in these
definitions includes radiant energy of any type, such as
X-ray, light rays whether within the visible or invisible
spectrum, Hertzian waves and other radiant electrical energy
excepting the electrons emitted from the cathode-ray tube
electrodes, and emanations from radioactive substances.
(3) Note. This subclass does not include the combination of
a cathode-ray tube and an optical device, such as a lens or
mirror, etc., which is used with the cathode-ray tube for
directing radiant energy to the sensitive element or
generated radiant energy from the tube, even if the system of
supply for the cathode-ray tube is claimed, the patent being
classified with the art appropriate to the combination.
SEE OR SEARCH THIS CLASS, SUBCLASS:
149 and indented subclasses for other systems under the
class definition wherein the system includes means for
controlling the operation of the load device by means of
radiant energy.
SEE OR SEARCH CLASS:
250, Radiant Energy, 200 for photocell circuits and
apparatus. Indented subclass 549 includes a cathode-ray tube
device which illuminates a photocell and is controlled by
said photocell while indented subclass 214 contains
cathode-ray device of the image convertor or light amplifier
type.
313, Electric Lamp and Discharge Devices, 365 for
cathode-ray tube structures which are photosensitive.
348, Television, 162 for television systems responsive to
radiant energy in the invisible spectrum and subclass 325 for
television systems using a photoelectric controlled
cathode-ray tube.
Subclass:
11
This subclass is indented under subclass 10. Subject matter
wherein the cathode-ray tube is provided with a secondary
emissive electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
12.1 for other cathode-ray tube systems wherein the
cathode-ray tube is provided with a secondary emissive
electrode.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 379 for
cathode-ray tube structures which are photosensitive and
which have a secondary emissive electrode.
Subclass:
11.5
Color convergence controlled by photodetector:
This subclass is indented under subclass 10. Subject matter
including a light-responsive device which controls the
convergence in response to a characteristic of an image or
pattern produced on the screen.
SEE OR SEARCH THIS CLASS, SUBCLASS:
368.11 for color convergence control circuitry for a
cathode-ray tube, absent photodetector control.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 549 for radiation responsive
control circuitry for a cathode-ray tube including
pre-photocell optical structure.
Subclass:
12.1
With secondary emission stage in the cathode- ray tube:
This subclass is indented under subclass 1. Subject matter
wherein the cathode-ray tube is provided with a secondary
emissive electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.11 for cathode-ray tube circuits wherein a cathode-ray
passes through a hollow distributed parameter device, the ray
impinging on a secondary emission electrode to produce
another ray or to augment the impinging ray.
11 for cathode-ray tube systems wherein the system includes
means for controlling the operation of the cathode-ray tube
by means of radiant energy, the cathode-ray tube being
provided with a secondary emissive electrode.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 379 and
399 for cathode-ray tube structures which include a secondary
emissive electrode.
329, Demodulators, appropriate subclasses for demodulators
with secondary emission.
330, Amplifiers, subclass 42 for amplifier systems having a
tube containing a secondary emissive electrode.
Subclass:
13.1
Plural ray-type tube:
This subclass is indented under subclass 1. Subject matter
wherein the cathode-ray tube is provided with means for
forming a plurality of separate cathode-ray beams.
(1) Note. The cathode-ray tube may be provided with a
plurality of cathodes or a single cathode with means for
separating the emission from the cathode into a plurality of
rays.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.14 for cathode-ray tube circuits wherein a plurality of
rays passes through or in a hollow distributed parameter
device.
8.61 for plural beam cathode-ray tubes utilized in pulse
counting, storing, or code translation systems.
9 for cathode-ray tube systems under subclass 1 which
include a plurality of cathode-ray tubes in the system.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 409 for
cathode-ray tube structures which are provided with means to
form a plurality of cathode- ray beams.
Subclass:
13.11
Storage tubes:
This subclass is indented under subclass 13.1. Subject
matter wherein changeable information is stored in the form
of charged or uncharged areas of the screen of the
cathode-ray tube.
Subclass:
14
This subclass is indented under subclass 1. Subject matter
wherein the cathode-ray tube is provided with a plurality of
means for either concentrating, accelerating and/or
de-accelerating the cathode-ray, and the system includes
means for supplying electric current and/or potential to such
means.
(1) Note. The concentrating, accelerating, and/or
de-accelerating means may be electrostatic, electromagnetic,
or both.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 for cathode-ray tube circuits wherein the ray passes
through or in a hollow distributed parameter device, the ray
being accelerated or decelerated while so passing, and
especially subclasses 5.16+, 5.27, 5.28, and 5.41 where the
ray passes through a plurality of such devices; and
subclasses 5.34+ where structure is included for
concentrating the ray.
13.1 for cathode-ray tube systems wherein the cathode-ray
tube is provided with means for forming a plurality of
cathode-ray beams in the tube, each of the beams being
provided with concentrating, accelerating, and/or
de-accelerating means.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 441 for
cathode-ray tube structures which have a plurality of
electrodes between the cathode and the target (e.g., a
plurality of accelerating and/or decelerating electrodes,
and/or concentrating electrodes, and/or modulating
electrodes).
Subclass:
15
This subclass is indented under subclass 14. Subject matter,
wherein the cathode-ray tube is provided with three or more
means for concentrating, accelerating, and/or de-accelerating
the cathode-ray.
Subclass:
16
This subclass is indented under subclass 15. Subject matter
wherein the current and/or potential applied to the
concentrating, accelerating, and/or de-accelerating means
which forms the intermediate stage is less than the current
and/or potential applied to the concentrating, accelerating,
and/or de-accelerating means which form the stages on either
side of such intermediate stage.
Subclass:
17
This subclass is indented under subclass 14. Subject matter
wherein the cathode-ray tube is provided with ray deflecting
means, the ray deflecting means being positioned so as to
deflect the ray between two of the concentrating,
accelerating, and/or de-accelerating stages, or to cause the
ray to be deflected in one of the concentrating,
accelerating, and/or de-accelerating stages.
(1) Note. The ray deflecting means may be mounted within
one of the concentrating, accelerating, and/or
de-accelerating electrodes or means, or may be interposed
between two such means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.27 and 5.28, for cathode-ray tube circuits including a
plurality of hollow distributed parameter devices with the
ray passing through or in, the ray being reflected or
deflected.
364 for other cathode-ray tube systems wherein the
cathode-ray tube is provided with ray deflecting means.
Subclass:
30
This subclass is indented under subclass 1. Subject matter
wherein the cathode-ray tube is provided with ray modulating
means, and the circuit includes means to apply potential
and/or current to the ray modulating means.
(1) Note. Ray modulating means is defined as being any
means for varying the number of electrons in the cathode-ray
beam, and to exclude focusing, concentrating, and ray
accelerating means.
(2) Note. This subclass does not include systems wherein
the only ray control means is a means which is supplied with
current and/or potential to maintain a constant accelerating
and/or de-accelerating field for the cathode-ray.
SEE OR SEARCH THIS CLASS, SUBCLASS:
14 and the indented subclasses and the subclasses specified
in the notes to the definition of these subclasses for other
systems wherein the cathode-ray tube is provided with a
plurality of accelerating and/or de-accelerating stages.
349 and the indented subclasses and the subclasses referred
to in the notes to the definition of these subclasses for
systems under the class definition which include a gas or
vapor discharge device which is provided with a discharge
control means.
364 where the cathode-ray tube is provided with ray sweep
means, and the system includes means for supplying current
and/or potential to the sweep means and to the discharge
intensity control means.
380 where the system includes means for applying suitable
potential and/or current to the ray intensity control means
to prevent the ray from being projected upon the ray
receiving anode or target when the ray sweep circuit becomes
inoperative to continue the ray sweeping.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 446 and the
subclasses specified in the Notes thereto for cathode-ray
tube structures which have a ray modulating means.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for
miscellaneous systems which include a discharge device
provided with a discharge control means.
Subclass:
32
This subclass is indented under the class definition.
Subject matter, sections (A) and (B).
(1) Note. If any circuit element is not structurally
combined with the discharge device structure or the heating
and/or cooling means, the patent is classified in the class
which provides for the claimed system. Where the claimed
system is classified in this class, the patent is classified
in this or the indented subclasses, and cross-referenced to
the appropriate succeeding subclass. Their mere recitation
of the source of potential for the discharge device will not
exclude the patent from these subclasses. For the classes
which provide for such systems as are excluded from these
subclasses, search Class 327, Miscellaneous Active Electrical
Nonlinear Devices, Circuits, and Systems and the classes and
subclasses specified in the main class search notes to that
class.
(2) Note. The circuit element may be mounted within or on
the base or envelope of the load device where the load device
is an electric lamp or electric discharge device designed to
operate in a vacuum, or an atmosphere of confined gas or
vapor.
(3) Note. Mere electrical heaters which are used only to
heat the load device and which are not used as impedances in
any circuit other than the heater circuit are not included in
this or the indented subclasses.
(4) Note. This and the indented subclasses include the
combination of a load device or the load device temperature
modifying means and a circuit element where the load device
or the temperature modifying means and the circuit element
are formed of separable parts, but are provided with means
for fastening or assembling the parts together to form a
unitary structure. However, this and the indented subclasses
do not include combinations of a load device with a separable
socket or connector which may include a circuit element in
the socket or connector. See (8) Note below.
(5) Note. Examples of electrical devices considered to be
circuit elements are electric switches, resistances,
capacities, inductances, transmission lines, antennas,
transformers, and any other circuit elements.
(6) Note. The circuit element combined with the load device
need not be a circuit element to be used in the circuit of
the load device, but may be provided with separate terminals
so as to be usable in any desired relation.
(7) Note. This and the indented subclasses include load
devices wherein the electrodes and/or the electrode leads are
formed so as to function as inductances. This or the
indented subclasses do not include load devices wherein the
electrodes are formed of resistive material, and no other
circuit impedance is combined with the discharge device,
except (1) where a discharge device load and an incandescent
filament lamp are structurally combined in one device, or (2)
where a discharge device load is provided with a resistance
heatable cathode or an electric resistance cathode heater
device, the incandescent filament or the cathode resistance,
or the heater resistance being connected with the discharge
device so as to function as an impedance device in the
discharge device circuit. This or indented subclasses do not
include discharge devices having the only condenser effect
formed by the inter-electrode or inter-electrode lead
capacity. Such load devices will be found in the classes
which provide for electric lamp and discharge device
structures.
(8) Note. This and the indented subclasses do not include
patents wherein the load device is claimed in combination
with a separable socket, receptacle, or connector for the
load device, the socket, receptacle, or connector including a
circuit element. Such patents are classified as a system in
the appropriate system class. Where the load device and the
socket or other connector are constructed and arranged with
respect for each other, so that the contacts on the load
device and socket may be used as switch contacts, the patent
is classified in this or the indented subclasses. This and
the indented subclasses do not include the combination of a
load device and a transmission line or waveguide where the
transmission line or waveguide is designed to have an
electrical connection with the load device and no part of the
transmission line or waveguide is within the envelope or
otherwise an integral part of the load device.
(9) Note. The line between this and the indented subclasses
and the classes which provide for the structural combination
of a plug, socket, or other connector which has structurally
combined therewith an electric circuit element is that where
the connector is claimed as a part of a lamp or discharge
device, such as the base, and the lamp or discharge device is
recited by name only, the patent is classified in the
appropriate class which provides for the combined connector
and circuit element. For sockets, receptacles, and
connectors structurally combined with circuit elements, see
the Search Class notes, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3 and indented subclasses for cathode-ray tubes which are
combined with other circuit elements, all of which are
structurally combined therewith to form a unitary device.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 51
and indented subclasses and the other subclasses specified in
the notes to subclass 51 where the circuit element is an
electric switch. (See (9) Note, above.)
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses for electric discharge
devices of the consumable electrode type which are
structurally combined with a circuit element.
336, Inductor Devices, subclass 107 and the Notes thereto,
for the structural combination of a connector and a
transformer or an inductive reactor.
338, Electrical Resistors, 68 for mechanically variable
electrical resistors, and especially subclasses 70+ for such
variable resistors in or on a lamp socket, and subclass 219
for fixed resistors in or on a lamp socket or base. (See (9)
Note, above.)
361, Electricity: Electrical Systems and Devices, 139 where
the circuit element is an electromagnetic devices and
subclasses 271+ where the circuit element is a condenser.
(See (9) Note, above.)
Subclass:
33
This subclass is indented under subclass 32. Subject matter
wherein the combined structure includes a source of potential
and the other circuit elements necessary to operate the load
device so that the combined structure forms a self-contained
device which may be transported from one place to another.
(1) Note. The device need not be designed to be carried
about by a person.
(2) Note. This subclass includes only those self-contained
devices which are not otherwise provided for in other
classes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
55 for other load devices structurally united with a
generator of current and/or potential.
SEE OR SEARCH CLASS:
40, Card, Picture, or Sign Exhibiting, appropriate subclasses
for portable, self-contained, illuminated signs.
43, Fishing, Trapping, and Vermin Destroying, subclass 16
and 17 for portable, self-contained, illuminated signaling
devices for fishing apparatus, and subclasses 17.5+, for
portable, self-contained, illuminated bait.
310, Electrical Generator or Motor Structure, subclass 50
for portable generators or motors.
313, Electric Lamp and Discharge Devices, subclass 48 for
space discharge devices, per se, which are provided with a
handle. The devices in Class 313 do not include any circuit
element in addition to the space discharge device. For
example, if the structure includes a resistance, a switch, or
other circuit element, the patent is classified in this
subclass of Class 315.
322, Electricity: Single Generator Systems, subclass 1 for
portably mounted generator systems.
362, Illumination, appropriate subclasses, for articles such
as firearms, canes, etc., which include an electric lamp and
the source of potential therefor to make a self-contained,
illuminated article, and especially 157 for portable
self-contained electric lamps, such as flashlights.
368, Horology: Time Measuring Systems or Devices, subclass
67 and 227, for illuminated clocks.
441, Buoys, Rafts, and Aquatic Devices, 13 for illuminated
buoys.
455, Telecommunications, subclass 346 and 351 for portable
radio sets.
Subclass:
34
This subclass is indented under subclass 32. Subject matter
having an antenna combined with the structure of the load
device.
SEE OR SEARCH CLASS:
342, Communications: Directive Radio Wave Systems and Devices
(e.g., Radar, Radio Navigation), appropriate subclasses for
radio apparatus and Class 343, Communications: Radio Wave
Antennas, 700 for antennas, per se, and particularly
subclass 701 for antennas having an electric space discharge
device, whose space discharge forms part of the antenna or
its coupling network, and not otherwise classified.
455, Telecommunications, 269 for radio receivers provided
with antenna.
Subclass:
35
This subclass is indented under subclass 32. Subject matter,
wherein (1) a plurality of electric discharge device loads
are each structurally combined with the same circuit element,
or (2) a plurality of discharge device loads are each
provided with means to cool and/or heat at least part of the
discharge device loads, the cooling means being either
structurally combined with or forming an electrical circuit
element.
(1) Note. This subclass includes load devices having an
enclosing envelope, the envelope enclosing a plurality of
discharge devices, the circuit element being mounted either
within the enclosing envelope, or within the base or
connector, or otherwise structurally combined with the
discharge device.
(2) Note. Where a plural discharge device system is claimed
which is within the class definition, and the discharge
devices are structurally combined in a single device, but no
circuit element is combined with the discharge device
structure, the patent is classified as a plural discharge
device system in one of the other appropriate subclasses of
this class.
(3) Note. This subclass includes two or more load devices,
each supplied with a cooling fluid from a common source of
coolant, the cooling conduits being either formed as circuit
impedances or structurally combined with a circuit
impedance.
(4) Note. Patents claiming two or more discharge devices
which are structurally united, such as being within the same
envelope or enclosure, and having the electrodes of the
respective discharge devices connected together, but not
claiming any circuit element other than the conductive
connector, are not included in this or the indented
subclasses, see Class 313, Electric Lamp and Discharge
Devices, subclasses 1+.
Subclass:
36
This subclass is indented under subclass 35. Subject matter,
wherein the discharge device loads are connected in
electrical series relation with respect to each other and the
source of discharge current for the discharge devices.
(1) Note. This subclass includes, for example, a load
device which includes in structural combination a circuit
element a rectifying discharge device, and a discharge device
load connected to the rectifier so as to be supplied with
discharge current by a source of current supply through the
rectifier.
SEE OR SEARCH THIS CLASS, SUBCLASS:
189 and indented subclass and the subclasses specified in
the notes to the definition of these subclasses, for other
series connected discharge device systems under the class
definition.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 8, for plural series connected
consumable electrode discharge devices and the system
therefor, subclass 33, for consumable electrode discharge
devices provided with three or more series connected
discharge electrodes, and the system therefor.
Subclass:
37
This subclass is indented under subclass 35. Subject matter
wherein at least one of the load devices is a discharge
device provided with a discharge control electrode, and the
cathode-anode circuit of one of the discharge devices
includes means to impress a potential on such control
electrode.
(1) Note. Some of the patents in this subclass are multiple
stage discharge devices having the discharge device units
connected in cascade relation.
Subclass:
38
This subclass is indented under subclass 35. Subject matter,
wherein at least two of the discharge device loads each have
at least one electrode connected either to the opposite
terminals of a circuit impedance or to similar impedances
which are connected together at their terminals which are not
connected to the electrodes, the electrode of each of the
discharge device units which is connected to the circuit
impedance being similar in its function to the electrode of
the other discharge device unit which is connected to the
circuit impedance.
(1) Note. This subclass includes, for example, a device
containing two discharge device loads and a circuit
impedance, the anodes of the discharge devices being
connected to opposite ends of the impedance.
(2) Note. Some of the patents in this subclass are multiple
unit discharge devices having the discharge device units
connected in push-pull relation.
Subclass:
39
This subclass is indented under subclass 32. Subject matter
having an electric discharge device load structurally
combined with an electric wave transmission device or line
having or acting as if it had distributed inductance or
capacitance.
(1) Note. See (8) Note to subclass 32.
(2) Note. The transmission device or line may be a
waveguide, a coaxial line or a parallel wire transmission
line.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3.5 and 4+, for this subject matter where the discharge
device includes means to focus or otherwise shape the
electron stream into a beam. See subclasses 3.5+ where the
transmission line or device includes means to exhibit a wave
component of a traveling wave, the velocity of which is
reduced in comparison to the wave velocity in free space.
SEE OR SEARCH CLASS:
174, Electricity, Conductors and Insulators, subclass 28 and
indented subclass, and subclass 102 and indented subclasses
for coaxial cables, subclasses 27 and 113 for parallel wire
cables.
331, Oscillators, subclass 5, 6+, 79+, 86+, 93, and 96+ for
electrical oscillation systems wherein a space discharge
device is combined with a distributed parameter impedance
device.
333, Wave Transmission Lines and Networks, particularly
subclass 13 for resonator type breakdown discharge systems;
e.g., T-R or R-T systems, the tube and resonant device being
combined in a separable and nonintegral manner, subclasses
219+ for resonant parallel transmission lines, per se,
subclasses 236+ for long lines in general, subclasses 239+
under subclass 236 for electric waveguides, per se,
particularly adapted for propagating electrical waves having
an electric or magnetic field component extending in the
direction of propagation, and subclasses 243+ under subclass
236 for coaxial cables, per se, whose distributed electrical
parameters determine the wave propagating characteristics of
the cable.
Subclass:
39.3
This subclass is indented under subclass 39. Subject matter
in which the transmission line with distributed parameters
incorporated in the tube structure is arranged to propagate a
traveling electro-magnetic wave and is constructed and
arranged to have a wave component the velocity of which is
reduced in comparison with the wave velocity in free space;
and in conjunction therewith are means for generating an
electron stream whose path is in proximity to the path of
said traveling wave component so as to permit an exchange of
energy between the electron stream and the traveling wave
propagated along the transmission path.
(1) Note. The transmission line or waveguide may be
constructed as a spiral or helix so that the wave has an
axial velocity component along the helix which is lower than
the free space velocity of the wave, or the transmission line
or waveguide may be loaded as by inductive members to reduce
the velocity of the traveling wave. Another type included is
a transmission line formed by an electrode having a plurality
of resonant cavities formed in the electrode adjacent to an
along the path to be taken by the electron stream, the
structure being such that a traveling wave may be propagated
along the length of the structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1 for miscellaneous discharge device systems using tubes
such as are classified in this subclass.
3.5 for this subject matter where the discharge device
includes means to focus or otherwise shape the electron
stream into a beam.
39.51 40 and 41+, for other discharge devices which have
structurally combined therewith an inductor or which have an
electrode formed so as to act as if it possessed inductance,
with or without a capacitive impedance combined with or
inherent in the structure. The devices in these subclasses
are distinguished from the devices in subclass 39.3 primarily
in that the distributed parameter structure in these
subclasses is not a transmission line arranged to propagate a
traveling wave.
SEE OR SEARCH CLASS:
330, Amplifiers, subclass 43 for amplifier systems which
include traveling wave tubes. See Lines With Other Classes
and Within This Class and References to Other Classes in the
Class Definitions of Class 330.
332, Modulators, especially 131, 147+ and 165+ for modulator
systems having tubes of the type here classified.
333, Wave Transmission Lines and Networks, subclass 22 for
transmission lines of the distributed parameter type (e.g.,
waveguides, long lines) having dissipating terminations,
subclasses 138+ for delay networks, subclasses 32+ for
impedance matching networks for transmission lines, subclass
81 for transmission lines of the long line with an attenuator
means, and attenuators especially designed for use over a
frequency band or for use in transmission lines of the
distributed parameter type, and subclasses 236+ for the
structure of transmission lines of the distributed parameter
type.
Subclass:
39.51
This subclass is indented under subclass 32. Subject matter
wherein the device is a discharge device having an electrode
or a portion thereof formed so as to provide structure having
distributed impedance parameters and having or acting as if
it had inductance and capacitance, and which are provided
with means for subjecting the discharge space to an
electromagnetic field, the device being designed to operate
so that there is interaction between the space discharge and
the distributed impedance structure.
(1) Note. Included in this and the indented subclasses are
discharge devices which are known as magnetrons and which
have an electrode formed so as to have distributed inductance
and capacitance, or having an electrode formed with a
resonant cavity, or having an electrode with interleaved
fingers arranged to form a resonant structure (e.g.,
interdigital anode), or having an electrode formed as a flat
strip, or spiral, or perforated so as to form a structure
having distributed inductance and capacitance (e.g., a
resonator). Note that subclasses 40 and 42 also contain
certain types of "magnetrons".
(2) Note. The devices in this subclass are designed for use
with a magnetic field. For similar devices where the
electrodes are formed so as to provide a structure having
distributed inductance and capacitance or where an electrode
is formed as an inductor and which do not have
electromagnetic means for influencing the space discharge,
see this class, subclass 40. Also see subclass 40 for
devices where an electrode is formed as an inductor and a
separate capacitor is used to form a resonant or tuned
circuit, with or without a magnetic field means. See (1)
Note, above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3.5 for traveling wave cathode-ray circuits with delay type
transmission lines.
5.13 for a cathode-ray tube circuit with a distributed
parameter resonator type magnetron, the cathode-ray passing
through or in the resonator of the magnetron.
35 for devices under subclass 32 wherein there are two
separate magnetron devices within the envelope.
39 for discharge devices of this type wherein the device
includes a transmission line having distributed parameters
(e.g., a waveguide, a coaxial cable or a parallel wire
transmission line). See (1) Note, above. Note especially
that subclass 39.3 provides for devices very similar to the
devices in this and the indented subclasses where the
structure having the distributed parameters is formed as a
transmission line arranged to propagate a traveling wave.
40 see (2) Note, above.
42 for discharge devices under subclass 32 having an
inductor connected to an electrode of the discharge device.
The device may also include a capacitance so as to form a
tuned or resonant circuit. The devices in subclass 42 may
include a magnetic means for influencing the space discharge
(e.g., one type of magnetron). See (1) Note, above.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 153 for
miscellaneous discharge devices which are provided with an
electromagnet for subjecting the discharge space to a
magnetic field. These subclasses in Class 313 provide for
so-called magnetrons when the structure of the electrode or
other portion which is formed to have the distributed
impedance structure is not claimed.
330, Amplifiers, 47 for amplifier systems using magnetrons
including those of the type classified in this and indented
subclasses.
331, Oscillators, subclass 5 and 86+ for oscillator systems
of the magnetron type.
332, Modulators, especially subclass 132, 147+ and 166 for
modulating systems using magnetrons of the type classified in
this subclass.
333, Wave Transmission Lines and Networks, 219 for
resonators of the distributor parameter type. See subclasses
227+ for the cavity or waveguide type.
Subclass:
39.53
This subclass is indented under subclass 39.51. Devices
provided with means for coupling oscillating electrical
energy to or extracting oscillatory electrical energy from
the distributed impedance structure of the discharge
devices.
(1) Note. Many of the patents in this subclass show the
combination of a magnetron with a coupling loop or other
coupling means for transferring energy to or from the
distributed impedance structure (e.g., resonator) of the
discharge device. Where the coupling means includes
significant transmission line structure, such as a coaxial
cable, a parallel wire transmission line or a waveguide, the
patent is classified in subclass 39 and cross-referenced to
this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39 see (1) Note, above.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, subclass 24 for
coupling networks for transferring oscillatory electrical
energy to or from a structure or circuit of the long line or
distributed parameter type.
Subclass:
39.55
This subclass is indented under subclass 39.51. Devices
which are provided with means to change the tuning or the
impedance of the distributed impedance structure of the
discharge device.
(1) Note. The variable tuning means may be provided for
maintaining the impedance or tuning of the device constant
(e.g., such as compensating for changes caused by temperature
conditions in the impedance structure) or it may be for the
purpose of varying the impedance of the device.
(2) Note. This subclass does not include structure such as
strapping which is utilized to cause all of the distributed
impedance structures or parts to have a common impedance
value such as magnetrons having a plurality of cavity
resonators and straps between selected anode segments so that
all of the resonators operate at the same frequency. For
such excluded subject matter, see subclass 39.69, below.
(3) Note. The means for tuning or varying the impedance of
the distributed impedance structure may be means for varying
the geometrical configuration of the distributed impedance
structure or means for creating or changing the space charge
in the distributed impedance structure as by the use of an
electric space discharge to project electrons into or
adjacent to a resonant space or by the use of a movable
tuning element. Where the means for changing the tuning or
impedance includes an input or output coupling means, the
search should be in subclass 39.53.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.13 for a distributed parameter resonator type magnetron,
with a cathode-ray passing through or in the resonator of the
magnetron for tuning purposes.
39.53 see (3) Note.
39.71 for devices under subclass 39.51 which are provided
with a magnetic field generating means and means for varying
the strength or orientation of the magnetic field.
SEE OR SEARCH CLASS:
331, Oscillators, subclass 5 for magnetron oscillators
wherein the generator frequency is controlled by an automatic
frequency stabilization control loop, and subclass 90 for
magnetron type oscillators with frequency adjusting means.
333, Wave Transmission Lines and Networks, subclass 235 for
resonant structures of the distributed parameter type which
are provided with tuning means, see subclasses 227+ for the
cavity or waveguide type, and subclasses 236+ for long lines
with means for varying the impedance of the line, see
subclasses 239+ for waveguides and subclasses 243+ for
coaxial cables.
334, Tuners, appropriate subclasses for variable tuners, per
se, and especially 41 for resonant line tuners of the
distributed parameter type.
336, Inductor Devices, appropriate subclasses for variable
inductors, per se.
Subclass:
39.57
This subclass is indented under subclass 39.55. Devices in
which an electron emissive means is provided to project
electrons into or adjacent the space formed by the
distributed impedance structure to change the tuning or
impedance of the distributed impedance structure.
(1) Note. The electron emissive means must be in addition
to the cathode of the device in order to be classified in
this subclass. It may be a secondary electron emissive
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5.23 for cathode-ray tube circuits including a hollow
distributed parameter device having a flexible wall
adjustable for tuning purposes, and wherein the ray passes
through or in and returns to the device, the flexible wall
being thermally controlled.
39.63 for other discharge devices under subclass 39.51 which
are provided with an auxiliary anode, or cathode, or control
electrode or secondary emitter electrode.
Subclass:
39.59
This subclass is indented under subclass 39.55. Devices
which have a movable element for varying the tuning or
impedance of the distributed impedance structure, the movable
element being actuated by a thermal or magnetic motor means.
(1) Note. The thermal motor means may be a thermostat. The
magnetic motor means may be an electromagnet.
(2) Note. The thermal or magnetic motor means may vary the
position of one portion of the distributed impedance
structure with respect to some other portion or a tuning
element may be moved into proximity to or away from some
portion of the impedance structure.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 151 for
miscellaneous discharge devices which are provided with a
movable electrode or shield where the means for moving the
electrode or shield is a thermal motor means, and subclass
152 for miscellaneous discharge devices having a movable
electrode or shield which is moved by a magnetically actuated
means.
336, Inductor Devices, 30 for inductors which are provided
with thermally or magnetically actuated means to vary the
inductive impedance.
Subclass:
39.61
This subclass is indented under subclass 39.55. Devices
which are provided with a movable tuning element which may be
moved to and from or within the distributed impedance
structure to vary the tuning or impedance.
(1) Note. This subclass does not include magnetrons where
the only movable structure is a part of the distributed
impedance structure. For example, in a cavity resonator if
only the dimensions of the structure forming the cavity are
varied, the patent is excluded from this subclass. If a
tuning element is inserted into or near the cavity to vary
the tuning, the patent is included in this subclass. The
excluded subject matter will be found in subclasses 39.55 or
39.57.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.55 see (1) Note.
39.59 for this subject matter where the means for moving the
tuning element is a thermal or magnetic actuator.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 146 for
miscellaneous discharge devices which have a movable
electrode or shield.
336, Inductor Devices, subclass 20, 30+, 45, 75+, and 130+
for inductors which are provided with a movable element other
than the coil structure for varying the inductive impedance.
Subclass:
39.63
This subclass is indented under subclass 39.51. Devices
which are provided with a control electrode, an auxiliary
anode, an auxiliary cathode or a secondary emitter
electrode.
(1) Note. The secondary emitter electrode may be upon the
same support as the primary cathode. The auxiliary electrode
need not be formed so as to provide a portion of the
distributed impedance structure.
(2) Note. This subclass includes either as originals or as
cross-references substantially all magnetrons which are
provided with more than two electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.55 for magnetrons under subclass 39.51 which have an
electrode designed for use in tuning or varying the reactance
of the distributed impedance of the structure.
39.57 for devices under subclass 39.51 which are provided
with an auxiliary cathode for use in tuning the distributed
impedance structure.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 103 for
miscellaneous discharge devices which are provided with a
secondary emissive electrode, subclasses 293+ for
miscellaneous discharge devices which are provided with a
control electrode interposed in the discharge space between
the cathode and the anode, subclass 306 for miscellaneous
discharge devices having three or more electrodes (e.g.,
plural anodes or plural cathodes), and subclass 308 for
miscellaneous discharge devices which are provided with a
discharge control electrode.
331, Oscillators, subclass 89 for electric wave generation
systems utilizing a magnetron-type device with a secondary
emissive electrode.
Subclass:
39.65
This subclass is indented under subclass 39.51. Devices
wherein an electrode or portion thereof is formed so as to
provide a plurality of distributed impedance structures, the
geometrical configuration or the inductance and the
capacitance of at least one of the structures being
substantially different from the geometrical configuration or
the inductance and capacitance of another of the structures.
(1) Note. The different distributed impedance structures
may be designed to operate at different frequencies, or to
eliminate undesired modes of operation, or for other
purposes.
(2) Note. This subclass does not include such distributed
impedance structures which are only incidentally of different
size or which operate at different undesired frequencies and
which may be provided with strapping or other means to make
all the structures operate at the same frequency or to reduce
undesired modes of operation. For such excluded subject
matter, see the other subclasses under subclass 39.51,
especially subclass 39.69 for the devices with strapping.
(3) Note. This subclass includes the structure of the
electrode, per se, which is provided with the distributed
impedance structures of different impedances.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.61 for devices under subclass 39.51 which have a movable
tuning element which may be moved to and from or within the
distributed impedance structures to vary the parameters of
the structure.
Subclass:
39.67
This subclass is indented under subclass 39.51. Devices
which are provided with a tubular anode having the
distributed impedance structure as a part thereof and which
have a cathode disposed within the anode so as not to be at
the center of the anode or which has the cathode disposed on
the axis of the anode but axially displaced so it is not
centrally located within the ends of the anode.
Subclass:
39.69
This subclass is indented under subclass 39.51. Devices
which have a plurality of distributed impedance structures
and which have the structures interconnected by straps or
wires which are located so as to be adjacent and electrically
coupled to the plurality of structures so as to tend to
restrict the structures to operation at a common frequency or
tend to constrain the structures to operation in one or more
particular modes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.55 for devices under subclass 39.51 which are provided
with variable tuning or impedance varying means for the
distributed impedance structure means.
Subclass:
39.71
This subclass is indented under subclass 39.51. Devices
which are provided with significantly claimed magnetic field
generating or magnetic pole structure.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 156 for other
discharge devices which are provided with similar magnetic
field generating and pole structure. The subclass in Class
313 provides for similar magnetic field and pole structure
when the device is not claimed as being a magnetron.
Subclass:
39.73
This subclass is indented under subclass 39.51. Devices
wherein the electrode has a resonant structure formed by
interleaved finger-like segments, alternate segments being
connected together at one end, other segments being connected
together at the opposite end.
(1) Note. This subclass includes the structure of the
electrode, per se, which is provided with the interdigital
structure.
Subclass:
39.75
This subclass is indented under subclass 39.51. Devices in
which the anode is provided with a cavity which due to its
geometry and its electrical properties, is resonant.
(1) Note. The anode may be a circular block having therein
a resonant cavity, or it may be a circular structure formed
with vanes, the space between the vanes forming a resonant
cavity.
(2) Note. This subclass includes magnetrons with the
specified type of electrode, and also the electrode, per se.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 356 for
miscellaneous anodes which are of tubular or hollow sleeve
form.
Subclass:
39.77
This subclass is indented under subclass 39.51. Devices
which are provided with a resonant cavity coupled to the
anode structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39 where a discharge device has structurally combined
therewith a waveguide.
39.73 for this subject matter where the anode structure is
formed so as to provide an interdigital electrode.
39.75 where the anode structure includes a resonant cavity.
Subclass:
40
This subclass is indented under subclass 32. Subject matter
having an electrode of the load device formed so as to
function as an inductance.
(1) Note. The devices in this subclass may include a
separate capacitor to form a resonant or tuned circuit, and
may include a magnetic field generating means (the device may
be a magnetron). Where an electrode is formed so as to
provide distributed inductance and capacitance (e.g., cavity
resonator) and the device is designed to operate in a
magnetic field, see subclasses 39.51+. This subclass (40)
includes somewhat similar devices having an electrode formed
so as to provide distributed inductance and capacitance and
where the device is not designed to operate in a magnetic
field. See subclass 42 where the device has separate
inductor connected between different anodes or different
cathodes with or without a capacitor (e.g., to form a
resonant circuit) or a magnetic field producing means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4 for cathode-ray tubes having a part thereof formed so as
to function as an inductance or as an inductance and
capacitance (e.g., hollow resonator, waveguide).
39 for this subject matter where the device having the
distributed inductance is a transmission line having
distributed parameters (e.g., waveguide, coaxial cable,
etc.).
39.51 for this subject matter where an electrode is formed
to provide a structure having distributed inductance and
capacitance (e.g., a resonator) and an electromagnetic device
is provided for subjecting the discharge space to a magnetic
field (e.g., magnetrons). See (1) Note, above.
42 for discharge devices which are provided with a plurality
of anodes or a plurality of cathodes and a separate inductor
connected between at least two of the anodes or between at
least two of the cathodes. See (1) Note, above.
62 and the subclasses specified in the notes to the
definition of that subclass, for other patents wherein an
inductive impedance is structurally combined with a discharge
device.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 155 for
lamps and discharge devices which have an electrode designed
to generate a magnetic field.
Subclass:
41
This subclass is indented under subclass 32. Subject matter,
wherein the circuit element which is structurally combined
with the load device is an inductive impedance, the load
device being a discharge device and having the inductive
impedance electrically connected between two of the
electrodes of the discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4 and indented subclasses, for cathode- ray tubes having
structurally combined therewith an inductive impedance which
is connected between two of the electrodes of the cathode-ray
device.
39 for discharge devices which have structurally combined
therewith a transmission line having distributed parameters
(e.g., a waveguide, coaxial cable, etc).
59 for discharge device loads having impedances other than
inductive impedances connected between the electrodes of the
discharge device.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors.
Subclass:
42
This subclass is indented under subclass 41. Subject matter,
wherein the discharge device is provided with a plurality of
anodes or a plurality of cathodes, and the inductive
impedance is electrically connected between (1) at least two
of such anodes, or (2) at least two of such cathodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.51 and 40, for discharge devices which have an electrode
formed so as to function as an inductive impedance, or as a
combined inductance and capacitance, see subclass 39.51 where
the electrode is formed to provide distributed inductance and
capacitance and an electromagnet is provided for subjecting
the discharge space to a magnetic field. Subclasses 39.51+,
40 and 42 all include magnetrons, those in subclasses 39.51+
having an electrode formed to provide distributed inductance
and capacitance (e.g., resonator), those in subclass 40
having an electrode formed to provide only an inductive
impedance (a separate capacitor being used), and those in
subclass 42 having both a separate inductor and capacitor.
Subclass 40 also provides for the devices where the electrode
is formed to provide both distributed inductance and
capacitance, but which are not designed to operate in a
magnetic field.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 153 for discharge
devices which are provided with magnetic means for
influencing the space discharge.
Subclass:
43
This subclass is indented under subclass 41. Subject matter,
wherein the discharge device load is provided with a
discharge control electrode and the inductive impedance is
electrically connected between the control electrode and
another electrode of the discharge device.
Subclass:
44
This subclass is indented under subclass 43. Subject matter,
provided also with a capacitive impedance which is
structurally combined with the discharge device structure,
the capacitive impedance being electrically connected between
the control electrode and another electrode of the discharge
device load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
45 for other discharge devices structurally combined with a
plurality of impedances one of which is an inductive
impedance which is connected between two of the electrodes of
the discharge device and the other being a different type of
impedance.
Subclass:
45
This subclass is indented under subclass 41. Subject matter,
wherein an impedance, in addition to the inductive impedance,
and of some other type, is structurally combined with the
discharge device structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4 for cathode-ray tubes which have structurally combined
therewith an inductive impedance or a structure formed so as
to provide both inductance and capacitance, (e.g.,
resonator).
44 where an inductive impedance and a capacitive impedance
are structurally combined with the discharge device load,
both of these impedances being connected between the control
electrode and another electrode of the discharge device.
53 for other discharge device loads having structurally
combined therewith a plurality of diverse type impedances.
Subclass:
46
This subclass is indented under subclass 32. Subject matter,
wherein the load device is a discharge device having
structurally combined therewith a filament, or an electric
resistance heater element, or a resistance, the filament,
heater or resistance being electrically connected in shunt
with the discharge electrodes of the discharge device.
(1) Note. The filament or electric heater may be the
cathode element or the cathode heater element of the
discharge device.
(2) Note. In some of the devices in this subclass the
filament is designed to emit light either while the discharge
device is operating or before the electric discharge is
initiated between the discharge electrodes. This subclass
includes therefore combined discharge lamps and incandescent
lamps where the lamp filament is connected in shunt to the
discharge electrodes. In some of the devices in this
subclass, the filament or heater merely vaporizes material
and/or acts as an auxiliary cathode until the principal
discharge can be established.
SEE OR SEARCH THIS CLASS, SUBCLASS:
49 for discharge devices having a filament or electric
heater connected in electrical series with the discharge
device load.
94 and indented subclasses, for systems under the class
definition wherein a discharge device load is provided with a
cathode made of resistance material, or having the cathode
heated by an electrical resistance heater, and the system
includes means to supply electric current to the cathode or
heater.
115 and indented subclass, for systems under the class
definition wherein the load device is provided with an
electric heater for heating the load device and the system
includes means to supply electric current to the heater.
182 for miscellaneous systems under the class definition
which include a discharge device load and another diverse
type load device.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 1 for the
structural combination of a discharge device and an
incandescent lamp which are combined so as to form a unitary
device where the incandescent lamp filament is not connected
either in shunt or in series with the discharge electrodes,
subclasses 15+ for discharge devices which are provided with
an electric resistance heater for the discharge device which
is not connected either in shunt or in series with the
discharge electrodes, and subclass 310 and the subclasses
specified in the Notes thereto for discharge devices having
an indirectly heated cathode, the cathode heater element not
being connected either in shunt or in series with the
discharge electrodes.
Subclass:
47
This subclass is indented under subclass 46. Subject matter,
having an electric switch connected in the shunt circuit
which includes the filament, heater or resistance, the switch
being provided with means for automatically operating the
switch in response to some condition affecting the operation
of the device.
(1) Note. In some of the devices in this subclass, the
switch is designed to open the shunt circuit of the filament,
heater or resistance when the discharge device or the cathode
have become heated sufficiently to establish a discharge
between the electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
107 and the subclasses specified in the notes to the
definition of that subclass, for other discharge device loads
under the class definition provided with a cathode or cathode
heater, and an automatically operating electric switch in the
cathode or cathode heater circuit.
Subclass:
48
This subclass is indented under subclass 46. Subject matter,
wherein (1) the cathode heater is connected in electrical
shunt to the discharge electrodes, or (2) having the filament
which is connected in electrical shunt designed to function
as a cathode in the operation of the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
47 for this subject matter when an automatic switch is
included in the shunt circuit.
Subclass:
49
This subclass is indented under subclass 32. Subject matter
wherein the load device is a discharge device having
structurally combined therewith a filament or an electric
heater, the filament or heater being connected in electrical
series with the discharge electrodes of the discharge
device.
(1) Note. The filament or heater may be the cathode element
or the cathode heater element of the discharge device.
(2) Note. In some of the devices in this subclass, the
filament is designed to emit light while the discharge device
is operating. This subclass therefore includes combined
discharge lamps and incandescent lamps where the lamp
filament is connected in series with the discharge
electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 for discharge devices having a filament or electric
heater connected in electrical shunt relation with the
discharge device load.
58 and indented subclasses, for a mere resistance having no
other function even though in electrical series relation with
the discharge electrodes.
94 and indented subclasses for systems wherein a discharge
device load is provided with a cathode made of resistance
material or having the cathode heated by an electric
resistance heater, and the system includes means to supply
electric current to the cathode or heater.
115 and indented subclass for systems under the class
definition wherein the load device is provided with an
electric heater for heating the load device and the system
includes means to supply electric current to the heater.
179 and indented subclasses for miscellaneous systems under
the class definition having a plurality of diverse type load
devices electrically connected in series in the system.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 1 for the
structural combination of a discharge device and an
incandescent lamp which are combined so as to form a unitary
device where the incandescent lamp filament is not connected
either in shunt or in series with the discharge electrodes,
subclasses 15+ for discharge devices which are provided with
an electric resistance heater for the discharge device which
is not connected either in shunt or in series with the
discharge electrodes and subclass 310 and the subclasses
specified in the Notes thereto, for discharge devices having
an indirectly heated cathode, the cathode heater element not
being connected either in shunt or in series with the
discharge electrodes.
Subclass:
50
This subclass is indented under subclass 32. Subject matter,
wherein the load device is provided with means for heating
and/or cooling at least part of the load device structure,
such means being either combined with, or forming an
electrical impedance element.
(1) Note. In many of the patents in this subclass, the
conduit for supplying cooling fluid to the load device is
coiled and forms an inductive impedance element.
(2) Note. Mere electrical heaters which are used only to
heat the load device and which are not used as impedances in
any circuit other than the heater circuit are not included in
this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 and indented subclasses, for discharge device loads
having an electrical heater structurally combined with the
discharge device and connected in electrical shunt to the
discharge electrodes.
49 for discharge device loads having an electrical heater
structurally combined with the discharge device and connected
in electrical series with the discharge electrodes.
112 for other systems under the class definition wherein the
load device is provided with temperature modifying means.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 11 for lamp
structures and discharge device structures provided with
means for modifying the temperature of the lamp or discharge
device.
Subclass:
51
This subclass is indented under subclass 32. Subject matter,
having a plurality of circuit elements structurally combined
with the load device structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
33 for portable self-contained devices which include a
source of potential and the other circuit elements necessary
to operate the load device structure.
34 where one of the circuit elements is an antenna.
47 where the load device is a discharge device having a
filament, electric heater or resistance in shunt to the
discharge electrodes and an automatically operating electric
switch is included in the shunt circuit.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems appropriate subclasses for systems
having two or more circuit elements which are of general
application and not otherwise classified.
Subclass:
52
This subclass is indented under subclass 51. Subject matter,
having a plurality of impedance elements structurally
combined with the load device structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44 and 45, where one of the impedances is an inductance
which is electrically connected between two electrodes of a
discharge device load.
Subclass:
53
This subclass is indented under subclass 52. Subject matter,
wherein one of the impedance elements is of a diverse type
with respect to another of the impedance elements.
(1) Note. Impedance elements differing only in size, value,
or in the manner of connection to the load device are not
considered to be of diverse types. Examples of impedance
elements considered to be of diverse types with respect to
each other are resistances, condensers and inductances.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44 where there is an inductance and a condenser structurally
combined with a discharge control discharge device, the
inductance and the impedance each being connected between the
control electrode and another electrode of the discharge
device.
45 where one of the impedances is an inductance which is
electrically connected between two electrodes of a discharge
device load.
Subclass:
54
This subclass is indented under subclass 52. Subject matter,
having a plurality of inductive impedances structurally
combined with the load device structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
62 and the subclasses specified in the notes to the
definition of that subclass, for other load devices which
have an inductive impedance structurally combined with the
load device structure.
289 and indented subclass, and the subclasses specified in
the notes to the definition of that subclass, for other load
device systems under the class definition provided with an
inductive impedance in the circuit.
Subclass:
55
This subclass is indented under subclass 32. Subject matter,
wherein the circuit element which is structurally combined
with the load device structure is either an electric current
generator or a piezoelectric device.
(1) Note. Some of the current generators in the
combinations in this subclass are thermoelectric devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
33 for portable, self-contained devices and apparatus which
include a source of potential and the other circuit elements
necessary to operate the load device structure.
SEE OR SEARCH CLASS:
136, Batteries: Thermoelectric and Photoelectric,
appropriate subclasses, for electric current generating
batteries.
310, Electrical Generator or Motor Structure, appropriate
subclasses for miscellaneous electric current generators and
subclass 339 for piezoelectric devices.
429, Chemistry: Electrical Current Producing Apparatus,
Product, and Process, appropriate subclasses for
electrochemical batteries.
Subclass:
56
This subclass is indented under subclass 32. Subject matter,
wherein the load device is a space discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
33 for portable, self-contained apparatus which includes a
discharge device load.
34 for discharge devices combined with an antenna.
35 and indented subclasses, for plural discharge devices
structurally combined with a circuit element.
39 for other discharge devices which have structurally
combined therewith a transmission line of the distributed
parameter type (e.g., waveguide, coaxial cable, etc).
39.51 for discharge devices which have an electrode formed
so as to provide both inductive and capacitive impedance
(e.g., resonator) and which are provided with an
electromagnet for subjecting the discharge space to a
magnetic field.
40 for discharge devices having an electrode formed as an
inductive impedance or formed to provide both inductance and
capacitance (e.g., a resonator).
41 and indented subclasses, for discharge devices combined
with an inductive impedance connected between two or more
electrodes of the discharge device.
46 and indented subclasses, for discharge device combined
with a filament, heater, or resistance in shunt with the
discharge electrodes.
49 for discharge devices combined with an electric heater or
filament in electrical series with the discharge electrodes.
50 for discharge devices combined with temperature modifying
means, the temperature modifying means being either designed
to function as a circuit element or combined with the circuit
element.
51 and indented subclasses, for discharge devices combined
with plural circuit elements.
55 for discharge devices combined with an electric current
generator or piezoelectric device.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses for consumable electrode
discharge devices which have structurally combined therewith
an electric circuit element.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses especially 22 for
fluorescent lamp starting devices, 28+ for thermally actuated
switches combined with space discharge devices, 108 for
bimetallic switch operating means with spark gap heating
means for the element.
Subclass:
57
This subclass is indented under subclass 56. Discharge
devices, having structurally combined therewith an electric
transformer.
(1) Note. The transformer may be designed to be connected
to the cathode heater or cathode circuit, merely to supply
current to heat the cathode, or it may be connected to any of
the other electrodes of the discharge device. The patent need
not specify the connection of the transformer for
classification in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
70 for other load devices having a transformer structurally
combined with the load device.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors. See
especially 105 and the notes thereto for transformers and
inductive reactors combined with other structure.
378, X-Ray or Gamma Ray Systems or Devices, 91 and 119+ for
combined X-ray tube and transformer units.
Subclass:
58
This subclass is indented under subclass 56. Discharge
devices, having structurally combined therewith an electric
circuit impedance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
33 where the discharge device is combined with other circuit
elements so as to constitute a portable, self-contained
apparatus.
35 and indented subclasses, for plural discharge devices
combined with a circuit impedance.
39.51 and 40, for discharge devices which have an electrode
formed to provide inductance, see subclass 39.51 where the
electrode has distributed inductance and capacitance (e.g., a
resonator) and which are provided with an electromagnet for
subjecting the discharge space to the magnetic field, and
subclass 40 for discharge devices for having an electrode
formed as an inductor or as a structure having inductance and
capacitance (e.g., resonator).
41 for discharge devices combined with an inductance which
is connected between two of the electrodes of the discharge
device.
46 and indented subclasses for discharge devices combined
with a filament, electric heater or resistance in shunt with
the discharge electrodes.
50 for discharge devices combined with temperature modifying
means, the temperature modifying means being either designed
to function as a circuit impedance, or combined with a
circuit impedance.
56 for discharge devices combined with an electric heater or
filament in series with the discharge electrodes.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 132, and the subclasses specified in the
notes to the definition of that subclass, for consumable
electrode discharge devices which have structurally combined
therewith an electric impedance.
Subclass:
59
This subclass is indented under subclass 58. Discharge
devices, having the impedance electrically connected between
two electrodes of the discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39 for other discharge devices which have structurally
combined therewith a transmission line of the distributed
parameter type (e.g., a waveguide, coaxial cable, etc).
41 and indented subclasses, for discharge device loads,
combined with an inductive impedance which is electrically
connected between two of the electrodes of the discharge
device.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors.
338, Electrical Resistors, appropriate subclasses, for
electrical resistors, per se.
361, Electricity: Electrical Systems and Devices, subclass
271 for electric condenser structure.
Subclass:
60
This subclass is indented under subclass 59. Subject matter,
wherein the discharge device is provided with a principal
anode and a principal cathode and an auxiliary discharge
electrode, the impedance being electrically connected between
the auxiliary discharge electrode and one of the principal
electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
234 for systems under the class definition which include an
auxiliary starting electrode discharge device load having a
condenser connected between the auxiliary electrode and one
of the principal electrodes.
263 for systems under the class definition which include an
auxiliary starting electrode discharge device load the
discharge device being supplied with pulsating or alternating
current and having an inductance connected in the auxiliary
electrode circuit.
264 for systems under the class definition which include an
auxiliary starting electrode discharge device load, having an
impedance connected in the auxiliary electrode circuit, the
discharge device being supplied with pulsating or alternating
current.
335 for miscellaneous systems under the class definition
with discharge device load having an auxiliary starting
electrode.
Subclass:
61
This subclass is indented under subclass 59. Discharge
devices wherein the discharge device is provided with
discharge control means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.63 for discharge devices which are provided with control
electrode, and an electrode formed to provide distributed
inductance and capacitance (e.g., a resonator) and which have
an electromagnet for influencing the discharge between the
electrode for influencing the space discharge (e.g.,
magnetrons).
42 for other discharge devices having structurally combined
therewith an inductive impedance which is connected between
either a plurality of anodes or a plurality of cathodes, the
discharge device being provided with an electromagnet for
influencing the discharge between the electrodes.
63 for other discharge control discharge devices
structurally combined with an electric circuit element.
335 and indented subclass and the subclasses specified in
the notes to the definition thereof, for systems under the
class definition wherein the load device is a discharge
device provided with an auxiliary discharge electrode.
344 and indented subclasses and the subclasses specified in
the notes to the definition thereof for systems under the
class definition wherein the load device is a discharge
device provided with an electromagnet for influencing the
discharge between the electrodes.
349 and indented subclasses and the subclasses specified in
the notes to the definition thereof, for systems under the
class definition wherein the load device is a discharge
control discharge device.
Subclass:
62
This subclass is indented under subclass 58. Discharge
devices, wherein the impedance element is an inductive
impedance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39 for discharge devices which have structurally combined
therewith a transmission line of the distributed parameter
type, (e.g., waveguide, coaxial cable, etc.).
39.51 for discharge devices having an electrode formed as to
provide distributed inductance and capacitance (e.g.,
resonator and which are provided with an electromagnet for
influencing the space discharge (e.g., magnetrons).
40 for discharge devices having an electrode formed as an
inductive impedance.
41 and indented subclasses, for discharge devices combined
with an inductive impedance which is connected between two
electrodes of the discharge device.
54 for discharge devices combined with a plurality of
inductive impedances.
223 where the discharge device is connected to the secondary
circuit of a current supply transformer, the primary circuit
of the transformer including an inductance and a periodic
switch.
242 and 244, where the supply circuit of the discharge
device includes an inductance and a condenser.
263 for discharge device systems wherein the discharge
device is provided with an auxiliary starting electrode and
an inductance is included in the auxiliary electrode circuit
and the discharge device is supplied with alternating
current.
283 and indented subclasses, and the subclasses specified in
the notes to the definition of these subclasses, for
discharge device systems which are connected to a source of
alternating current supply and which are provided with an
inductance in the supply circuit.
289 and indented subclass, for miscellaneous systems under
the class definition provided with an inductance in the
supply circuit.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors.
Subclass:
63
This subclass is indented under subclass 56. Discharge
devices, wherein the discharge device is provided with
discharge controlling means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.63 for discharge devices which have a control electrode,
an electrode formed to provide distributed inductance and
capacitance and which are provided with an electromagnet for
influencing the space discharge (e.g., magnetrons).
42 for this subject matter where there is an inductive
impedance connected between either a plurality of cathodes or
a plurality of anodes of the discharge device, the discharge
device being provided with electromagnet means for
influencing the discharge.
61 for this subject matter where the discharge device is a
discharge control discharge device and an impedance is
connected between two electrodes of the discharge device.
335 and indented subclass and the subclasses specified in
the notes to the definition thereof, for systems under the
class definition wherein the load device is a discharge
device provided with an auxiliary discharge electrode.
344 and the subclasses specified in the notes to the
definition thereof for systems under the class definition
wherein the load device is a discharge device provided with
an electromagnet for influencing the discharge between the
electrodes.
349 and indented subclasses and the subclasses specified in
the notes to the definition thereof, for systems under the
class definition wherein the load device is a discharge
control discharge device.
Subclass:
64
This subclass is indented under subclass 32. Subject matter,
wherein the load device is provided with a plurality of
filaments.
(1) Note. Where a multiple filament load device system
within the class definition is claimed, but no circuit
element is combined with the load device structure, the
patent is classified as a plural load device system in one of
the other appropriate subclasses of this class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
35 for multiple unit discharge devices having combined
therewith a circuit element.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass
51.03 and indented subclass and 51.05 and indented subclass,
for electric connectors, such as plugs, sockets, etc.,
combined with either single or plural switch means in a
unitary structure or which are capable of functioning as a
switch and which may be operated so as to open or close a
selected part only of a plurality of circuits under control
of the switch means.
313, Electric Lamp and Discharge Devices, subclass 310 and
subclasses specified in the Notes thereto for discharge
devices which are provided with a plurality of filaments
(e.g., filamentary cathodes or filamentary cathode heaters),
and subclass 316 and the subclasses specified in the Notes
thereto for multiple filament incandescent lamps.
Subclass:
65
This subclass is indented under subclass 64. Multiple
filament load devices, provided with means for maintaining
one of the filaments in nonoperating connection with respect
to the current supply circuit while another of the filaments
is maintained in operative relation with respect to the
supply circuit, means being provided which operate
automatically (1) in response to either the failure of the
operatively connected filament to operate properly or its
failure to operate at all, or (2) when excessive voltage or
current conditions prevail which would tend to damage the
operating filament, to connect the nonoperating filament in
operative relation to the supply circuit and to disconnect
the operating filament from the supply circuit whereby one
filament is substituted for the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 and 88, and indented subclasses for other systems under
the class definition for automatically substituting one
electrode or load device for another when the first operated
electrode or load device fails or is subjected to excessive
current or voltage.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 236, for
electric lamps and discharge devices which have a plurality
of similar electrodes and which are provided with means so
that one electrode can be used to the exclusion of another,
and the excluded electrode can be substituted for the first
operated electrode when such electrode becomes defective.
Subclass:
66
This subclass is indented under subclass 64. Multiple
filament load devices, wherein the filaments are connected in
electrical series relation with respect to each other.
(1) Note. Some of the devices in this subclass provide
switch means for connecting one only of the filaments to the
supply circuit or to connect a plurality of the filaments in
series with respect to the supply circuit. Some of the
devices provide switch means to connect the filaments in
either series or parallel relationship with respect to the
supply circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
185 and indented subclasses, and the subclasses specified in
the notes to the definition of these subclasses, for other
series connected load devices under the class definition.
Subclass:
67
This subclass is indented under subclass 64. Multiple
filament load devices, wherein the filaments have different
resistances with respect to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
178 and indented subclasses for other systems under the
class definition which include a plurality of load devices of
different resistances.
Subclass:
68
This subclass is indented under subclass 64. Multiple
filament load devices provided with three or more filaments
and with means for connecting all or a selected number only
of the total number of filaments to the supply circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
317 and indented subclasses for miscellaneous load device
systems under the class definition provided with switch means
for controlling the circuits of three or more load devices.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass
51.03 and indented subclass and subclass 51.06, for electric
coupling devices, such as plugs, sockets, et cetera, combined
with either single or plural switch means in a unitary
structure, or which are capable of functioning as a switch,
and which may be operated so as to open or close a selected
part only of three or more circuits under control of the
switch means.
Subclass:
69
This subclass is indented under subclass 64. Multiple
filament load devices, provided with means for connecting a
plurality of filaments in electrical parallel relation with
respect to the supply circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
312 and indented subclasses for miscellaneous plural load
device systems under the class definition, especially
subclass 313, and indented subclasses, for plural load device
systems provided with an electric switch in the supply
circuit.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass
51.03 and indented subclass, and 51.05 and indented
subclass, for connectors, such as plugs and sockets, combined
with switch means, or which are capable of functioning as a
switch, and which may be operated so as to open or close a
selected part only of a plurality of circuits under control
of the switch means.
Subclass:
70
This subclass is indented under subclass 32. Subject matter
having an electric transformer structurally combined with the
load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
57 for discharge device loads structurally combined with a
transformer.
276 and the indented subclasses and the subclasses specified
in the notes to the definition of those subclasses for
systems under the class definition having a transformer in
the circuit of the load device.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors.
Subclass:
71
This subclass is indented under subclass 32. Subject matter
having an electric circuit impedance structurally combined
with the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
41 and indented subclasses for this subject matter, where
the load device is a discharge device having an inductive
impedance connected between the electrodes.
52 and indented subclasses for this subject matter, where
there are a plurality of impedances structurally combined
with the load device.
58 and indented subclasses, for this subject matter, where
the load device is a discharge device.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses, especially subclass 132,
for consumable electrode discharge devices structurally
combined with an impedance.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors.
338, Electrical Resistors, appropriate subclasses for
electrical resistors, per se.
361, Electricity: Electrical Systems and Device, 271 for
the structure of capacitors.
Subclass:
72
This subclass is indented under subclass 32. Subject matter
having an electric periodic switch structurally combined with
the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
209 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses, for systems
under the class definition provided with a periodic switch in
the supply circuit.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 19.01 for
periodic switches including those which are structurally
combined with an electric connector, such as a plug or
socket.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 87 for electromagnetically operated
periodic switches.
Subclass:
73
This subclass is indented under subclass 32. Subject matter
wherein the load device is provided with an envelope, bulb or
enclosure for providing a confined atmosphere of gas, vapor
or vacuum about the electrodes of the load device and having
an electric switch structurally united therewith, the switch
being mounted inside of the envelope, bulb, or enclosure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56 for electric space discharge devices which have an
electric switch structurally combined therewith, including
such combinations where the switch is within the envelope of
the device.
Subclass:
74
This subclass is indented under subclass 32. Subject matter,
wherein the electric switch is structurally connected with
the load device so as to complete an electrical circuit in
shunt about the load device or some part thereof, and/or to
open the load device current supply circuit, the switch being
designed to automatically operate (1) when the load device
becomes nonconductive or fails to operate properly, or (2)
when the supply voltage and/or current becomes too high or
too low for the proper operation of the load device, or (3)
when more than a desired number of load devices are connected
to the supply circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
119 and indented subclasses for other systems under the
class definition provided with an automatic shunt or cut-out
for the load device.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 10 and indented subclasses for
consumable electrode discharge devices having an automatic
shunt circuit closing means or cutout means structurally
combined with the discharge device.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 6 for automatically operated
electromagnets circuit interrupting devices.
337, Electricity: Electrothermally or Thermally Actuated
Switches, 15 for thermal current shunt circuit closing
switches.
Subclass:
75
This subclass is indented under subclass 74. Subject matter,
wherein the electric switch is connected to complete an
electric circuit in shunt about the load device or some part
thereof.
SEE OR SEARCH THIS CLASS, SUBCLASS:
125 and indented subclass, and the subclasses specified in
the notes to that subclass, for other systems under the class
definition provided with an automatic shunt for the load
device.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 11, and indented subclasses, for
consumable electrode discharge devices having an automatic
shunt circuit closing means structurally combined with the
discharge device.
337, Electricity: Electrothermally or Thermally Actuated
Switches, 15 for thermal current shunt circuit closing
switches.
Subclass:
76
This subclass is indented under the class definition.
Systems limited to use with particular articles, devices, or
apparatus and which are not provided for in other classes.
(1) Note. In most of the systems included in this and the
indented subclasses, one or more of the circuit elements of
the system are combined with some part of a particular
article, device, or apparatus, such as, for example, having
the switch which controls the supply of current to the load
device operated by the brake pedal of an automobile.
(2) Note. See the notes to the main class definition for
other classes which provide for the combination of particular
articles, device and apparatus, which include a discharge
device system.
(3) Note. For illuminated devices and articles and the
electrical systems for supplying electric current to the
illuminating means therefor, see the appropriate art
classification of the particular device or article which is
illuminated. See search class notes below.
SEE OR SEARCH CLASS:
40, Card, Picture, or Sign Exhibiting, for illuminated cards,
pictures and signs combined with particular articles or
devices.
340, Communications: Electrical, appropriate subclasses for
illuminated signals combined with particular articles and
devices. Note particularly 468, 310.01+, 691.1+, and
870.07+.
362, Illumination, appropriate subclasses for illuminating
devices combined with particular articles and devices.
Subclass:
77
This subclass is indented under subclass 76. Systems limited
to use with a vehicle.
(1) Note. The word "vehicle", as used in this and the
indented subclasses, includes ships, boats, aircraft,
elevators, and other conveyances.
(2) Note. Included in this and the indented subclasses are
lighting systems for controlling the supply of electric
current to lamps in the vehicle. Such systems are included
even though the lights are claimed as "head lights" "tail
lights", "side lights", "spot lights", or any similar named
light as long as the claims do not include any mounting of
the lamp or illuminating structure used with the lamp, but
claim the lamp by name only. The mere statement that the lamp
is mounted at the rear, side, front, or at another part of
the vehicle or ship will not exclude the patent from the
subclass. This and the indented subclasses include patents,
event though no particular vehicle structure is claimed,
where the lights are claimed as head lights, tail lights,
side lights, spot lights, etc. For a complete search for all
systems for supplying and/or controlling the supply of
electric current to one or more electric lamps, the search
should include the other appropriate subclasses of this
class.
(3) Note. For vehicles, ships, and boat structure, see
search class notes below.
SEE OR SEARCH CLASS:
40, Card, Picture, or Sign Exhibiting, appropriate
subclasses, for illuminated pictures and signs combined with
vehicle, ship, or boat structure.
114, Ships, for ship structure.
180, Motor Vehicles, for vehicle structure.
187, Elevator, Industrial Lift Truck, or Stationary Lift for
Vehicle, for vehicle structure.
191, Electricity: Transmission to Vehicles, appropriate
subclasses for systems and structure for transmitting
electricity to vehicles.
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses indented under subclass 52 for electric switches
combined with vehicle, ship, or boat structure.
244, Aeronautics.
280, Land Vehicles, for vehicle structure.
293, Vehicle Fenders, subclass 115 for vehicle grille and
bumper combinations which may provide openings therein
permitting light radiation therethrough from vehicle-attached
lamps.
296, Land Vehicles: Bodies and Tops, for vehicle structure.
301, Land Vehicles: Wheels and Axles, for vehicle
structure.
305, Wheel Substitutes for Land Vehicles, for vehicle
structure..
307, Electrical Transmission or Interconnection Systems, 9.1
for electrical systems mounted on vehicles.
320, Electricity: Battery or Capacitor Charging or
Discharging, appropriate subclass for a charging system for a
vehicular battery used to supply energy to an electric lamp.
322, Electricity: Single Generator Systems, subclass 1 for
portably mounted generator systems.
340, Communications: Electrical, 945 and 984+ for
illuminated signals combined with vehicle, ship or boat
structure.
362, Illumination, 459 and indented subclasses for
illuminating devices combined with vehicle structure.
Subclass:
78
This subclass is indented under subclass 77. Systems
provided with a magneto-electric current generator for
supplying electric current to the load device, the
magneto-electric generator being driven by either the motor
which propels the vehicle or by some driving means which is
actuated when the vehicle is moving.
(1) Note. Systems having the generator driven by one of the
vehicle wheels or the vehicle axle are here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
302 and indented subclasses for systems under the class
definition provided with means for regulating the supply of
electric current to the load device by regulating the
operation of the current generator, subclass 303 having
regulation by prime mover control.
SEE OR SEARCH CLASS:
290, Prime-Mover Dynamo Plants, for motor-driven
magnetoelectric generators, and systems of general
application including such motor driven generators.
310, Electrical Generator or Motor Structure, appropriate
subclasses for generators, per se.
320, Electricity: Battery or Capacitor Charging or
Discharging, appropriate subclass for charging a vehicular
battery from an energy source powered by the vehicle.
322, Electricity: Single Generator Systems, appropriate
subclasses for systems for regulating the current output of
generators.
362, Illumination, subclass 193 for illuminating devices
adapted for use on bicycles and similar vehicles provided
with an electric lamp and having a wheel driven generator for
supplying current to the lamp.
Subclass:
79
This subclass is indented under subclass 77. Systems
provided with means responsive to the speed of either the
motor which propels the vehicle or the speed of the vehicle
for controlling the supply of electric current to the load
device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78 for systems under the class definition where the
generator which supplies the current to the load device is
driven by the vehicle motor or by some driving means actuated
by the vehicle's motion.
SEE OR SEARCH CLASS:
73, Measuring and Testing, 488 for a speed responsive
device, per se.
123, Internal-Combustion Engines, 146.5 for spark ignition
systems for internal combustion engines which include a
periodic switch driven by some part of the engine for timing
the spark with reference to the engine cycle.
200, Electricity: Circuit Makers and Breakers, subclass 80
for centrifugal switches.
Subclass:
80
This subclass is indented under subclass 77. Systems having
a means which controls the operation of the load device
combined with and operated by a device which controls the
operation of the vehicle.
(1) Note. The means controlling the operation of the load
device may be an electric switch or current regulating means
or any other means affecting the operation of the load
device.
(2) Note. The vehicle operation controlling means may be
the means by which the vehicle is steered, or the means for
starting or stopping the vehicle or its motor, or any other
means affecting the operation of the vehicle.
(3) Note. This subclass does not include load device
controllers which are only mounted on the vehicle controller,
but are not operated thereby.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78 for systems having the load device current generator
driven by the vehicle motor or some means driven by the
motion of the vehicle.
79 for systems having the load device controlled by either
the speed of the vehicle or of the vehicle motor.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses indented under subclass 52, particularly
subclasses 61.27+, 61.54+ and 61.87 to 61.91 for electric
switches combined with vehicle controller structure; see also
subclass 332.2.
Subclass:
81
This subclass is indented under subclass 80. Systems,
wherein the load device control means is combined with and
operated by the steering mechanism of the vehicle.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 61.27,
61.54+, and 61.87 to 61.91 for electric switches controlled
by lever or wheel shafts such as steering wheels; see also
subclass 332.2.
362, Illumination, subclass 36 for structural combinations
of vehicle illuminating means and means to energize the light
source upon turning of the vehicle, and subclasses 37+,
respectively, for structural combinations of vehicle
illuminating means and means to shift the position of the
illuminating means upon turning of the vehicle.
Subclass:
82
This subclass is indented under subclass 77. Systems wherein
the load device is stated to be a vehicle head light.
(1) Note. This subclass includes patents wherein one or
more of the load devices is stated to be a head light, but no
structure of the head light is claimed, the head light being
claimed by name only. To make a complete search for all
means for controlling one or more head lights, the search
must include the other appropriate subclasses of this class.
SEE OR SEARCH CLASS:
250, Radiant Energy, 200, and the classes and subclasses
specified in the Notes thereto for photocell controlled
electric circuits and photocell apparatus, in which the
photocell may respond to light from the headlights of a
vehicle.
362, Illumination, 257 for the structure of vehicle head
lights.
Subclass:
83
This subclass is indented under subclass 82. Systems wherein
there are two or more lamps in the head light or the head
light lamp includes two or more filaments, the system
including means for supplying operating current to one or the
other of the lamps or filaments from the source of supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64 and indented subclasses for multiple filament lamps
having combined therewith an electric circuit element, such
as an electric switch.
294 and indented subclasses of this class, especially
subclass 296 for systems for regulating the supply of current
to two or more load devices so that one load device will
receive more current than another.
317 and indented subclasses and 322 for systems provided
with an electric switch for connecting one or the other of a
plurality of load devices to the source of supply.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 316 and
the subclasses specified in the Notes thereto for multiple
filament lamps.
Subclass:
84
This subclass is indented under subclass 76. Systems, having
a means which controls the operation of the load device
operated by a door or other closure member.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass
61.62 and subclasses 61.69 to 61.83, for door or sash
operated electric switches.
Subclass:
84.51
PULSE STORING SYSTEMS OF THE GASEOUS DISCHARGE TUBE TYPE:
This subclass is indented under the class definition.
Subject matter wherein a gaseous space discharge device
system is designed to respond to discrete electrical pulses
and which system accumulates or stores electrical pulse
energy for later retrieval.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8.51 for pulse storing or systems employing cathode-ray
tubes.
SEE OR SEARCH CLASS:
178, Telegraphy, subclass 17.5 for telegraph transmitters
having means for accumulation information in advance of
actual transmission.
324, Electricity: Measuring and Testing, 111 for electrical
systems having means for storing electrical energy for
measuring purposes.
377, Electrical Pulse Counters, Pulse Dividers, or Shift
Registers: Circuits and Systems, subclass 103 for counting
chains using gas filled tubes.
Subclass:
84.61
With plural cathode or anode tube:
This subclass is indented under subclass 84.51. Subject
matter wherein the gaseous space discharge tube system
comprises space discharge means having two or more cathodes
or two or more anodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 and the subclasses referred to in the Notes to the
definitions of these subclasses, for other systems under the
class definition provided with a plural cathode or anode
discharge device load.
SEE OR SEARCH CLASS:
377, Electrical Pulse Counters, Pulse Dividers, or Shift
Registers: Circuits and Systems, subclass 100 for counting
means using multicathode gas discharge tubes.
Subclass:
85
This subclass is indented under the class definition.
Systems wherein the system is provided with means, or where
there is shielding means for part of the system, to prevent
radiation of electromagnetic waves from and/or to the system
or some part thereof.
(1) Note. For electrical systems provided with
anti-inductive means, search the appropriate system class.
See search class notes, below.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, subclass 146.5 and
indented subclasses, for internal combustion engines with
shielded ignition system.
174, Electricity: Conductors and Insulators, subclass 32,
and indented subclasses for anti-inductive conductors and
conductor arrangements, subclass 50 and indented subclasses
for electrical boxes, receptacles and containers, subclass 78
for terminal end structure of conduits, cables and conductors
provided with means to connect a ground wire thereto.
178, Telegraphy, subclass 49 and 69.
307, Electrical Transmission or Interconnection Systems, 89.
313, Electric Lamp and Discharge Devices, 239 for electric
lamps and electric space discharge devices which are provided
with shielding means to shield the electrodes or some part of
the device and significant supporting and/or spacing
structure for the shielding means is claimed. Subclass 313
(of Class 313) provides for other electric lamps and electric
space discharge devices which are provided with shielding
means. (See (1) Note, above.)
333, Wave Transmission Lines and Networks, particularly
subclass 12 for transmission line inductive or radiation
interference reduction systems, and subclasses 243+ for
transmission lines of the shielded type.
340, Communications: Electrical, 288, 310.01+ and 500+ for
electric signaling systems combined with other electric
signaling or nonsignaling systems.
343, Communications: Radio Wave Antennas, 841 for antennas
with an electrical shield; subclass 851 for antennas with a
coupling network having a radiation suppressor; and subclass
905 for antennas combined with a shielded transmission line.
379, Telephonic Communications, subclass 392, 394, 398, 402+,
406+, and 415.
455, Telecommunications, 300 for shielding in a radio
receiver. (See (1) Note, above.)
Subclass:
86
This subclass is indented under the class definition.
Systems provided with at least two sources of electrical
energy and at least one load device, and provided with means
for supplying energy to operate a load device from one of the
sources of electrical energy while the other source of
electrical energy is maintained in a nonsupplying condition,
and having means which operate automatically in response to
some condition affecting the operation of the system to
connect the nonsupplying source of energy in the system so
that it can become operative to supply energy to either the
same load device or a different load device than the load
device supplied by the first operated source of electrical
energy.
(1) Note. The condition which causes the second operated
source of energy to be connected in the system may be any one
or any combination of (1) the failure of the first operated
source of energy to deliver sufficient energy to a load
device, (2) an abnormal rise in voltage or current output of
the first operated source of energy, (3) when the second
operated source of energy has attained a sufficient voltage
and current output to supply the load device with energy, (4)
any other condition affecting the operation of the system
which makes it desirable that a source of energy other than
the first operated source of energy be used to supply a load
device.
(2) Note. This and the indented subclass are not restricted
to gas or vapor discharge devices or electric lamps as the
load device, but includes all discharge device systems
provided with means to automatically substitute another
source of current supply for the source of current supply
which is first used to supply current, excepting such systems
in which the discharge device load is a discharge control
type gas or vapor discharge device and the system includes
means to supply current and/or potential to the discharge
control means.
(3) Note. This subclass does not include systems wherein
the one source of energy is a storage battery designed to be
charged from the other source of energy, and to be connected
to supply the load device when the other source of energy
becomes inactive. Such systems are considered to be systems
which include the battery as a load device and will be found
for the most part in Class 307, Electrical Transmission or
Interconnection Systems, subclasses 46, 48+ and 66+, and
Class 320, Electricity: Battery or Capacitor Charging or
Discharging, having a battery charging and/or discharging,
per se, many patents disclosing, but not claiming an
additional lamp or discharge device load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
119 and indented subclasses for systems under the class
definition provided with means automatically operating to
either complete a shunt circuit about the load device or to
open the circuit of the load device, the automatically
operating means being operated in response to some condition
which prevents further normal operation of the load device.
160 and indented subclasses for other systems under the
class definition provided with two or more sources of current
supply.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, see
(3) Note.
Subclass:
87
This subclass is indented under subclass 86. Systems, having
in addition subject matter as defined in subclass 88 and the
notes thereto.
(1) Note. In many of the systems in this subclass, the
first operated source of electrical energy is connected to
the first operated load device or electrode, the
automatically operating means being operative to connect the
second operated source of electrical energy to the second
operated load device to thereby substitute a different source
of electric energy and a different load device for the first
operated source of energy and load device. The respective
sources of supply and load devices or electrodes may
constitute separate circuits except for the control of the
substituted circuit in response to the condition of the first
operated circuit.
Subclass:
88
This subclass is indented under the class definition.
Systems having (1) a nonoperating load device connected in
the circuit in addition to a load device connected in
operating condition in the circuit, or (2) a load device
connected in the system which has at least one nonoperating
electrode in addition to the electrode or electrodes which
are connected in operating relation in the circuit; the
system being arranged to operate the operating load device or
electrode while the nonoperating load device or electrode is
maintained in a nonoperative condition until the first
operated load device either fails to operate properly, or is
subjected to such excessive voltage or current conditions as
would tend to damage the operating load device or electrode,
the system being provided with means which operate
automatically in response to either such failure of the first
operated device or electrodes, or in response to such
excessive voltage or current conditions to connect the
nonoperating load device or electrode in operative relation
in the system whereby such nonoperating load device or
electrode is substituted for the first operated device or
electrodes.
(1) Note. In systems provided with an incandescent lamp as
the load device, the filament or other incandescent body is
considered to be an electrode within the meaning of this
subclass.
(2) Note. This subclass includes systems wherein the load
device is a discharge device having a plurality of cathodes
and/or anodes, one of the cathodes or anodes and its
corresponding electrode being connected in operative relation
in the circuit until one of these electrodes fails or is
subjected to excessive voltage or current when the
automatically operating means connects the nonoperated
electrode in operative condition in the circuit so as to
substitute the such electrode for the first operated
electrode.
(3) Note. This and the indented subclasses are not
restricted to gas or vapor discharge device or electric lamps
as the load device, but include all discharge systems which
are provided with means to automatically substitute another
discharge device for the operating discharge device when the
operating discharge device fails to operate properly
excepting such systems in which the discharge device load is
a discharge control discharge device other than the
discontinuous control type gas or vapor discharge device and
the system includes means to supply current and/or potential
to the discharge control means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
65 for multiple filament load devices which have
structurally combined therewith automatically operating means
to substitute a second filament for the first operated
filament when the first operated filament fails to operate
properly.
87 for this subject matter where the system also includes
automatically operated means to substitute a second source of
power supply for the first operated source of power supply.
129 and indented subclasses, for systems having a signal,
indicator, or alarm which may be a lamp or discharge device,
and see the reference to this subclass (88) in the notes to
the definition of subclass 129 for the line between this
subclass (88) and subclass 129.
312 and the subclasses specified in the notes to the
definition of that subclass for other plural load device
systems under the class definition.
334 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses for other
plural cathode and anode discharge device loads.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 1 and indented subclasses for
consumable electrode discharge devices and the systems
therefor, provided with (1) automatic means, for substituting
another consumable electrode discharge device or other
discharge device or lamp for the first operated consumable
electrode discharge device, or (2) automatic means for
substituting a consumable electrode discharge device for a
first operated discharge device or lamp, or (3) automatic
means for substituting another electrode for the first
operated electrode of the consumable electrode discharge
device.
362, Illumination, subclass 254 and indented subclass for
illuminating devices provided with an electric lamp, device
including means for substituting another light source for the
light source in use in event the light source in use is
destroyed or extinguished.
363, Electric Power Conversion Systems, 50 for electronic
tube current conversion systems having protective means
responsive to dangerous or undesirable conditions within the
electronic convertor for correcting the condition or
disabling the convertor.
Subclass:
89
This subclass is indented under subclass 88. Systems in
which two or more substitute load devices or electrodes are
provided for successive substitution as required.
Subclass:
90
This subclass is indented under subclass 88. Systems
provided with a plurality of first to be operated load
devices or electrodes and a nonoperating load device or
electrode, the nonoperating load device or electrode being
connected in the system so that it may be automatically
substituted for any one of the first operated load devices or
electrodes which either fail or are subjected to excessive
voltage or current conditions.
Subclass:
91
This subclass is indented under subclass 88. Systems
provided with means for automatically substituting the
nonoperating load device or electrode for the first to
operate load device or electrode in response to excessive
voltage or current conditions as would tend to damage the
first to operate load device or electrode.
(1) Note. This subclass includes systems provided with an
electric discharge gap connected in electrical parallel with
the source of supply and the load device, the spark gap being
adapted to ionize and to dissipate any voltage or current
surge and thereby protect the load device from such surge.
It also includes similar systems wherein the discharge gap is
designed to replace the load device when the load device
fails, the spark gap becoming ionized due to the increase in
voltage in the circuit caused by the failure of the load
device.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, 1 for
systems of general application. Note indented subclasses
117+ for lightning arresters.
Subclass:
92
This subclass is indented under subclass 88. Systems wherein
the load device or electrode which is substituted for the
first operated load device or electrode is of a diverse
type.
(1) Note. To be considered diverse type load devices, or
electrodes, the devices or electrodes must differ in some
electrical characteristic. Mere difference in color or shape
is not enough to make the load devices of different
characteristics within the meaning of this subclass.
Discharge devices containing different gases, or having
different starting or operating characteristics, or a
different number or types of electrodes are considered to be
of diverse types. Load devices having different impedances
are considered to be of diverse types.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 for this subject matter where the system also includes
automatically operating means to substitute a second source
of current supply for the first operated source of current
supply.
178 and the indented subclasses and the subclasses specified
in the notes to the definition of those subclasses for other
plural load device systems under the class definition
provided with a plurality of load devices of diverse types.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 1 and indented subclasses for similar
systems if either the first operated device or the
substituted device is a consumable electrode discharge
device.
Subclass:
93
This subclass is indented under subclass 88. Systems having
an electric switch which is automatically operated in
response to the failure of the first operated load device or
electrode to complete the circuit to the second operated load
device or electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
65 for multiple filament load devices which are structurally
combined with an automatically operated electric switch for
substituting a second filament, for a first operated
filament.
87 for this subject matter where the system also includes
automatically operating means to substitute a second source
of power supply for the first operated source of power
supply.
92 for this subject matter where the substituted device is
of a different type than the first operated device.
119 and indented subclasses for systems provided with an
automatically operating electric switch for completing an
electrical circuit in shunt about the load device, such
switch means being automatically operated in response to some
condition which prevents further normal operation of the load
device.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses for electric switches of general application.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 2 for consumable electrode discharge
devices, and the systems therefor, provided with an
automatically operating current shifting switch to substitute
(1) another discharge device, or lamp for the first operated
electrode discharge device or lamp if either the first
operated or substituted device is a consumable electrode
discharge device, or (2) another electrode for the first
operated electrode of the consumable electrode device, the
switch means being automatically operated in response to some
condition which prevents further normal operation of the load
device.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 2 for electromagnetically operated
switches of general application.
337, Electricity: Electrothermally or Thermally Actuated
Switches, 14 for electrothermally actuated switches.
Subclass:
94
This subclass is indented under the class definition.
Systems having a load device connected in the system, the
load device being a discharge device provided with (1) a
thermionic cathode adapted to be heated by electric current
other than the discharge current flowing through the cathode,
or (2) a cathode of the indirectly heated type, that is, a
thermionic cathode which is heated by the heat generated in
an electric heater element adjacent the cathode, the system
being provided with electric circuit means to apply electric
current to the cathode or the cathode heater element.
(1) Note. The subclass does not include patents wherein the
claims merely state that the load device in the system is
provided with a heated thermionic cathode or an indirectly
heated cathode and no significant features of the cathode or
heating circuit supply are claimed. Such patents are in the
other appropriate subclasses of the class.
(2) Note. This and the indented subclasses are not
restricted to gas or vapor discharge devices or lamps as the
load devices, but include all discharge device systems
wherein the discharge device includes a thermionic cathode
adapted to be heated by electric current other than the
discharge current, or an indirectly heated cathode provided
with an electric heater element, the system including circuit
means to supply current to the cathode or heater element,
excepting such systems in which the discharge device load is
a discharge control discharge device other than the
discontinuous control type gas or vapor discharge device and
the system includes means to supply current and/or potential
to the discharge control means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
112 for systems in which the load device is provided with
means for modifying the temperature of the load device.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 310 and
the subclasses specified in the Notes thereto for discharge
device structures where the discharge device is provided with
an indirectly heated cathode or a resistance heated cathode.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291, for systems for controlling the
current and/or voltage magnitude by means of an electronic
tube wherein the control of the electronic tube is by cathode
element control. A usual cathode element control is cathode
temperature control.
329, Demodulators, appropriate subclasses for demodulators
with significant power supply circuitry.
330, Amplifiers, subclass 113 for amplifier systems
including those with polyphase power supplies which may
supply the tube heaters; subclass 115 for amplifiers
including unrectified a.c. supply to vacuum tube filamentary
cathodes; subclass 127 for vacuum tube amplifier systems
including those having means to control the power supply of a
filamentary cathode or cathode heater; subclasses 201, 205,
and 206 for vacuum tube amplifiers including power supply to
filamentary cathodes.
363, Electric Power Conversion Systems, subclass 113 for
electronic tube current conversion systems wherein the
control of the electronic tube convertor is by cathode
element control. A usual cathode element control is cathode
temperature control.
Subclass:
95
This subclass is indented under subclass 94. Systems having
a plurality of discharge device load devices connected in the
system.
(1) Note. Where the circuit has a single discharge device
with a supply circuit in which there is a second discharge
device which is limited in the claims to being of the gas or
vapor type, the patent is classified as a plural discharge
device load system even though the second discharge device is
in controlling relation to the first, see the main class
definition section (9). Conversely where the second discharge
device is claimed broadly (not being limited in the claims to
being of the gas or vapor type) it is not treated as a second
load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
113 for plural load device systems provided with means for
modifying the temperature of the load devices.
324 and the subclasses specified in the notes to the
definition of that subclass, for other plural discharge
device load device systems.
Subclass:
96
This subclass is indented under subclass 95. Systems having
the cathodes and/or the cathode heaters of a plurality of
discharge device load devices connected in electrical series
relation with respect to each other and the source of cathode
or heater current supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
99 and indented subclass for systems under subclass 94
wherein a load device in the system is provided with a
plurality of cathodes and/or cathode heaters which are
connected in electrical series relation with respect to each
other.
185 and indented subclasses for systems provided with a
plurality of load devices connected in electrical series
relation with respect to each other.
Subclass:
97
This subclass is indented under subclass 95. Systems,
wherein the cathode or cathode heater current supply circuit
is supplied with pulsating or alternating current.
(1) Note. This subclass includes plural load device systems
wherein the cathode or heater circuit includes a rectifier
for rectifying alternating current, the rectified current
being supplied to the cathode or heater circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
101 for other systems under subclass 94 provided with a
rectifier and/or an electric space discharge device in the
cathode supply circuit.
105 and indented subclass for other systems under subclass
94 having the cathode or heater circuit supplied with
pulsating or alternating current.
250 and indented subclasses for systems provided with a
plurality of load devices and a source of pulsating or
alternating current supply for the load device.
Subclass:
98
This subclass is indented under subclass 94. Systems,
wherein the load device in the system is provided with a
plurality of thermionic cathodes or cathode heaters.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 and indented subclasses for systems wherein the load
device is an electric discharge device provided with a
plurality of cathodes and/or a plurality of anodes.
Subclass:
99
This subclass is indented under subclass 98. Systems wherein
a plurality of the cathodes and/or cathode heaters are
connected in electrical series relation with respect to each
other and the source of cathode or heater current supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
96 for systems under subclass 94 having a plurality of load
devices connected in the system, the cathodes and/or heaters
of two or more of the load devices being connected in
electrical series relation with respect to each other.
Subclass:
100
This subclass is indented under subclass 99. Systems
provided with a thermostatic electric switch connected in the
electrical series circuit which includes the plurality of
cathodes and/or cathode heaters, the thermostatic switch
being connected in the circuit to open and close the series
circuit.
(1) Note. In most of the systems in this subclass, the
cathodes and/or heaters are connected in series relation
until they have become heated to the operating temperature,
the thermostatic switch then opening the series circuit so
that the cathodes and/or heaters and the source of current
supply are no longer in series relation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
99 for corresponding systems having other than thermostatic
switches.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 14 for electrothermally actuated
switches.
Subclass:
101
This subclass is indented under subclass 94. Systems having
a discharge device and/or an electric current rectifier
connected either in electrical shunt relation or electrical
series relation with the cathode or the cathode heater and
the source of cathode or cathode heater current supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
200 and indented subclasses, for systems provided with a
space discharge device and/or an electric current rectifier
connected in the current supply circuit for the load device.
Subclass:
102
This subclass is indented under subclass 94. Systems
provided with means in the system to delay the application of
the discharge maintaining potential to the discharge
electrodes until the cathode has reached its operating
temperature.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 33 for
retarded (time delay) electric switches, per se.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 59 for electromagnetically operated
switches, per se.
363, Electric Power Conversion Systems, subclass 115 for
current conversion systems having an electronic tube
convertor including means to delay the application of
discharge potential to the electronic tube until the cathode
has reached its operating temperature. The systems in Class
363, subclass 115, are closely analogous to the systems in
this and indented subclasses. See section VI, 7 of the class
definition of Class 363 for the line between this class (315)
and Class 363.
Subclass:
103
This subclass is indented under subclass 102. Systems
provided with means for generating a surge of potential which
is higher than the potential of the source of supply and for
applying the potential surge to the discharge electrodes
after the cathode has reached its operating temperature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
263 and 289+, for other systems under the class definition
provided with means for impressing a potential surge on the
discharge electrodes to initiate a discharge in the discharge
device.
Subclass:
104
This subclass is indented under subclass 102. Systems
wherein the means for delaying the application of the
discharge potential to the discharge electrodes is controlled
by thermostatic means.
(1) Note. The heat to operate the thermostat may be
supplied from the cathode or the cathode heater or from an
electrical heating element other than the cathode or the
cathode heater connected in the system.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, 14 for electrothermally actuated switches and
subclass 298 for thermally controlled switches.
Subclass:
105
This subclass is indented under subclass 94. Systems wherein
the cathode or the cathode heater current supply circuit is
supplied with pulsating or alternating current.
SEE OR SEARCH THIS CLASS, SUBCLASS:
97 for this subject matter where there are a plurality of
load devices in the system.
101 for systems under subclass 94 wherein the system
includes an electric current rectifier in the cathode or
cathode heater circuit to rectify the current supplied to the
cathode or heater.
SEE OR SEARCH CLASS:
330, Amplifiers, subclass 113 and 115 for amplifier systems
including a polyphase power supply and a.c. power supply,
respectively.
Subclass:
106
This subclass is indented under subclass 105. Systems
provided with (1) means to open the cathode or the cathode
heater circuit, or (2) means to regulate the current supplied
to the cathode or the cathode heater circuit, such means
being automatically operated in response to some condition.
(1) Note. The condition causing the opening of the cathode
circuit may be (1) when the cathode or cathode heater supply
voltage and/or current becomes too low or too high for proper
operation of the load device, or (2) when more or less than
the desired electrical impedance is present in the cathode or
cathode heater circuit or (3) when the load device fails to
operate in the desired manner, or (4) any condition affecting
the operation of the load device. The current supplied to
the cathode may be regulated automatically in response to any
condition affecting the operation of the load device, such
as, the temperature of the load device or the surrounding
atmosphere, or the variations of potential of the source of
supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
99 for systems under subclass 98, wherein the discharge
device is provided with a plurality of cathodes or cathode
heaters being connected in series relation until they have
reached their operating temperature, the series connection
then being automatically opened so that the main discharge
may be initiated.
107 for other systems under subclass 94 provided with means
for automatically opening the cathode or cathode heater
circuit or for automatically regulating the current supplied
to the cathode or cathode heater.
114 and 116, for systems under the class definition having
electrical means to heat the load device, the circuit
supplying electric current to the heating means being
provided with an automatic cutout or voltage regulator.
119 for systems provided with means for automatically
opening the circuit of the load device in response to some
condition affecting the operation of the load device.
307 for systems under the class definition provided with
means for automatically regulating the current and/or
potential supplied to the load device in response to some
condition affecting the operation of the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 220-354, for miscellaneous systems for controlling
the magnitude of the current and/or potential in a single
circuit.
Subclass:
107
This subclass is indented under subclass 94. Systems
provided (1) with means to open the cathode or the cathode
heater circuit, or (2) means to regulate the current supplied
to the cathode, or the cathode heater circuit, such means
being automatically operated in response to some condition.
(1) Note. The condition causing the opening of the cathode
circuit may be (1) when the cathode or cathode heater supply
voltage and/or current becomes too low or too high for proper
operation of the load device, or (2) when more or less than
the desired electrical impedance is present in the cathode or
cathode heater circuit or (3) when the load device fails to
operate in the desired manner, or (4) any condition affecting
the operation of the load device. The current supplied to
the cathode may be regulated automatically in response to any
condition affecting the operation of the load device, such
as, the temperature of the load device or the surrounding
atmosphere, or the variations of potential of the source of
supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
99 for systems under subclass 98, wherein the discharge
device is provided with a plurality of cathodes or cathode
heaters being connected in series relation until they have
reached their operating temperature, the series connection
then being automatically opened so that the main discharge
may be initiated.
106 for this subject matter where the current supply for the
cathode or cathode heater circuit is pulsating and/or
alternating current.
114 and 116, for systems under the class definition having
electrical means to heat the load device, the circuit
supplying electric current to the heating means being
provided with an automatic cutout or voltage regulator.
119 for systems under the class definition provided with
means for automatically opening the circuit of the load
device in response to some condition affecting the operation
of the load device.
307 for systems under the class definition provided with
means for automatically regulating the current and/or
potential supplied to the load device in response to some
condition affecting the operation of the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 220-354, for miscellaneous systems for controlling
the magnitude of the current and/or potential in a single
circuit.
Subclass:
108
This subclass is indented under the class definition.
Systems wherein the load device is of the type which operates
in a confined atmosphere of gas or vapor and includes (1)
means for evacuating the gas or vapor, and/or (2) means for
admitting gas or vapor into the interior of the enclosure of
the load device, the system including means to cause such
pressure regulating means to become operative when the gas
pressure deviates from normal.
SEE OR SEARCH CLASS:
53, Package Making, 79 and 403+ for methods of and apparatus
for gas filling and/or evacuating of lamps or discharge
devices combined with closing.
141, Fluent Material Handling, With Receiver or Receiver
Coacting Means, subclass 4, 8, and 65+ for methods of and
apparatus for inducing a gas or vapor into or evacuating the
envelope of an electric lamp or space discharge device.
250, Radiant Energy, 281 for methods and apparatus for the
ionic separation or analysis of materials utilizing the mass
to electric charge ratio of ionic particles of the material.
313, Electric Lamp and Discharge Devices, subclass 7, for the
structure of an electric lamp or discharge device which has
combined therewith an evacuating pump designed to be used
during the operation of the lamp or discharge device (as
distinguished from such a combination designed only for use
during the manufacture of the lamp or discharge device) and
subclasses 545 to 566 for lamp and discharge device
structures which are provided with a getter, a gas or vapor
generating means or other pressure regulating means.
378, X-Ray or Gamma Ray Systems or Devices, subclass 123 for
X-ray tubes with vacuum control means.
445, Electric Lamp or Space Discharge Component or Device
Manufacturing, 9, for processes of generating a gas or vapor
from a material within the envelope of an electric lamp or
discharge device and subclass 55 and the subclasses specified
in the notes to the definitions of those subclasses for
processes of gettering electric lamps or discharge devices.
Subclass:
109
This subclass is indented under subclass 108. Systems,
wherein the load device is a space discharge device provided
with at least one auxiliary electrode in addition to the
principal discharge electrodes, the discharge between such
auxiliary electrode and another electrode when the gas
pressure in the enclosure deviates from normal controlling
the operation of the gas or vapor regulating means, the
auxiliary electrode being either (1) connected in a control
circuit so that the flow of current in the auxiliary
electrode circuit controls the operation of the gas pressure
regulating means or (2) the auxiliary electrode being
composed of or containing a material which when heated by the
auxiliary discharge releases or absorbs the required gas or
vapor to maintain the desired pressure in the enclosure.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 558 and 566 for
the structure of space discharge devices which have an
electrode or electrode support containing or coated with a
getter material, or a gas or vapor generating material.
Subclass:
110
This subclass is indented under subclass 108. Systems
wherein the load device is connected to the pressure
regulating device by a conduit which includes a valve, the
system including means to operate the valve when the gas
pressure deviates from normal.
SEE OR SEARCH CLASS:
137, Fluid Handling, 455 for valves which are responsive to
a change in line condition, such as pressure.
313, Electric Lamp and Discharge Devices, subclass 545, for
lamps and discharge device structure which include a valve so
that the lamp or discharge device may be either evacuated or
have gas or vapor introduced into the lamp or discharge
device.
Subclass:
111.01
DISCHARGE DEVICE LOAD WITH FLUENT MATERIAL SUPPLY TO THE
DISCHARGE SPACE:
This subclass is indented under the class definition.
Subject matter wherein, the load device in the system is a
discharge device, means being provided to supply a fluent
material to the discharge area.
(1) Note. This subclass includes systems in which the
supply of fluent material is (a) for supplying a stabilizing
ionizable or combustible gas to the discharge area, (b) for
the purpose of extinguishing the discharge, (c) for
deflecting the discharge from the path it would normally
take, or (d) for any other purpose not otherwise provided for
in some particular art area.
(2) Note. This subclass includes induction-type discharge
load devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
108 for systems under the class definition wherein the load
device is of the type which operates in a confined atmosphere
of gas or vapor and includes means for regulating the
pressure of the gas or vapor in the interior of the load
device enclosure, the systems including means to cause the
pressure regulating means to become operative when the
pressure deviates from normal.
112 for systems under the class definition wherein the load
device is provided with means for heating and/or cooling at
least part of the load device structure.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 251 for devices for producing
and propagating a unidirectional stream of neutral molecules
or atoms through a vacuum, usually with thermal velocity;
subclasses 281+ for methods and apparatus for the ionic
separation or analysis of materials utilizing the mass to
electric charge ratio of ionic particles of the materials,
the apparatus sometimes used including means to subject a gas
or vapor to electron or ionic bombardment for the purpose of
charging the particles; subclasses 306+ for methods and
apparatus for the inspection of solids or liquids by charged
particles; subclasses 324+ for methods and apparatus for
subjecting materials to corona radiation; subclasses 432+ for
an irradiating source and a fluent material containment,
support, or transfer means to permit the irradiation of the
fluent material; and subclasses 492.1+ for the irradiation of
objects or materials. Search the classes specified in the
Class 250 notes for other classes and the appropriate
subclasses which provide for other apparatus for either
supplying a fluent material to an electrical discharge or for
subjecting a fluent material to an electrical discharge.
313, Electric Lamp and Discharge Devices, subclasses 545-552
for the structure of discharge devices which are provided
with an envelope and with means for regulating the pressure
of the gas, vapor, or vacuum within the envelope; subclasses
231.01+ for discharge devices which are provided with means
to supply fluent material to the discharge space; and
subclasses 359.1+ for means for generating and accelerating
positive or negative ions.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, 21 for consumable electrode discharge devices,
and the systems therefor, where the consumable electrode
discharge device is provided with means to supply a material,
which may be fluent material, to the discharge area between
the electrodes.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, subclass 210 for ion or electron beam
deflecting magnets per se and the search notes thereto for
combinations including such magnet means.
376, Induced Nuclear Reactions: Processes, Systems, and
Elements, 100 for devices and methods utilizing a plasma
where the disclosed or claimed intent is to effect nuclear
fusion reactions.
Subclass:
111.11
With tangential fluent material supply:
This subclass is indented under subclass 111.01. Subject
matter including means for directing the fluent material in a
direction which is tangential to the discharge space.
Subclass:
111.21
Plasma generating:
This subclass is indented under subclass 111.01. Subject
matter including means for producing a plasma.
(1) Note. Usually plasmas have a neutral net charge, but
not necessarily so.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 231.31
for discharge devices, per se, which produce a plasma.
Subclass:
111.31
With extraction electrode:
This subclass is indented under subclass 111.21. Subject
matter including means for removing ions of one charge from
the plasma or discharge space.
Subclass:
111.41
With magnetic field:
This subclass is indented under subclass 111.21. Subject
matter including means for generating a magnetic field.
Subclass:
111.51
Induction type:
This subclass is indented under subclass 111.41. Subject
matter wherein the discharge is sustained by a high intensity
magnetic field.
Subclass:
111.61
Acceleration:
This subclass is indented under subclass 111.41. Subject
matter wherein the means for producing a magnetic field
accelerates the plasma.
Subclass:
111.71
Plasma containment:
This subclass is indented under subclass 111.41. Subject
matter wherein the magnetic field confines the plasma.
Subclass:
111.81
Electron or ion source:
This subclass is indented under subclass 111.01. Subject
matter including means for producing electrons or ions.
(1) Note. Included here are electron sources of general
utility.
Subclass:
111.91
Gas ionization type (e.g., ion pump or gauge source):
This subclass is indented under subclass 111.81. Subject
matter wherein the fluent material is bombarded by electrons
or ions to produce ions.
(1) Note. Included here are ion sources for ion pumps and
ionization gauges.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 359.1 for ion
sources with means to accelerate the ions.
417, Pumps, subclass 49 for ion pumps.
Subclass:
112
This subclass is indented under the class definition.
Systems wherein the load device in the system is provided
with means for heating and/or cooling at least part of the
load device structure.
(1) Note. This and the indented subclasses are not
restricted to gas or vapor discharge devices and lamps as
load devices or vapor, but include all discharge device
systems wherein the discharge device is provided with means
for heating and/or cooling the discharge devices, and the
system includes means automatically operated in response to
some condition affecting the operation of the load device to
control the operation of the load device, or the system
includes means controlled by the temperature modifying medium
for altering the operation of the discharge device excepting
such systems in which the discharge device load is a
discharge control discharge device other than the
discontinuous control type gas or vapor discharge device and
the system includes means to supply current and/or potential
to the discharge control means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
50 for discharge devices or lamps under the class definition
which are combined with means for heating and/or cooling the
lamp or discharge device structure, either the lamp or
discharge device, or the heating and/or cooling means being
structurally combined with an electric circuit element to
form a unitary device, or the heating and/or cooling means
forming an electrical circuit element, the lamp or discharge
device, and the heating and/or cooling means, being
structurally united to form a unitary device.
94 and indented subclasses for systems wherein the load
device in the system is a discharge device provided with
either (1) a thermionic cathode adapted to be heated by an
electric current flowing through the cathode, or (2) a
cathode of the indirectly heated type, the system including
means to apply electric current to the cathode or the cathode
heater element.
108 and indented subclasses, for systems having the load
device in the system provided with gas or vapor pressure
regulating means, the gas or vapor pressure regulating means
being responsive to heat. For example, such systems wherein
the load device is provided with a material which either
vaporizes, or releases, or absorbs gas, when the material is
heated.
111.01 for systems under the class definition where the load
device is a discharge device, means being provided to supply
fluent material to the discharge area between the
electrodes.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 11 for the
structure of discharge devices and electric lamps which are
provided with means for heating and/or cooling at least part
of the discharge device or lamp.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 26 and indented subclasses, for
consumable electrode discharge devices provided with
temperature modifying means, and the electrical systems
therefor.
Subclass:
113
This subclass is indented under subclass 112. Systems having
a plurality of load devices connected in the system.
SEE OR SEARCH THIS CLASS, SUBCLASS:
312 and the subclasses specified in the notes to the
definition of that subclass, for other plural load device
systems within the class definition.
Subclass:
114
This subclass is indented under subclass 113. Systems
wherein the load devices are provided with electrical heating
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
95 and indented subclasses, for systems under the class
definition provided with a plurality of discharge device load
devices, the discharge devices having either thermionic
cathodes designed to be heated by the passage of an electric
current or indirectly heated cathodes, the system including
means to supply electric current to the cathode or the
cathode heater element.
Subclass:
115
This subclass is indented under subclass 112. Systems
wherein the load device is provided with electrical heating
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 and indented subclasses, for discharge devices which have
structurally combined therewith so as to form a unitary
device, a filament, electric heater, or resistance, the
filament, heater, or resistance being connected in electrical
shunt to the discharge electrodes.
49 for discharge devices which have structurally combined
therewith, so as to form a unitary device, a filament or
electric heater, the filament or heater being connected in
electrical series with the discharge device.
94 and indented subclasses, for systems having a discharge
device load device, the discharge device having either a
thermionic cathode designed to be heated by the passage of an
electric current or an indirectly heated cathode, the system
including means to apply electric current to the cathode or
the cathode heater element.
114 for this subject matter where there are a plurality of
load devices in the system.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 15, for the
structure of discharge devices and electric lamps which are
provided with an electrical heating means for heating the
lamp or discharge device.
Subclass:
116
This subclass is indented under subclass 115. Systems
provided with (1) means to open the current supply circuit
for the heating means, or (2) means to regulate the current
supplied to the heating means, such means being automatically
operated in response to some condition.
(1) Note. The condition causing the opening of the heater
circuit or the operation of the regulating means may be (1)
when the load device current and/or voltage becomes too high
or too low, or (2) the temperature of the load device, or (3)
any other condition affecting the operation of the load
device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
106 and 109, for systems provided with a discharge device
load device of the type having either a thermionic cathode
designed to be heated by the flow of current there through or
an indirectly heated cathode, the system including an
automatic cutout or voltage regulator in the cathode or
cathode heater current supply circuit.
114 for this subject matter where there are a plurality of
load devices in the system.
117 for systems under subclass 112 provided with means other
than electric heating means for modifying the temperature of
the load device, such temperature modifying means being
automatically controlled in response to some condition
affecting the operation of the load device.
119 and indented subclasses, for systems provided with an
automatic cutout for the load device.
307 and indented subclasses, for systems provided with
automatic regulating means to regulate the supply of current
to the load device.
Subclass:
117
This subclass is indented under subclass 112. Systems
provided with means for controlling the operation of the
heating and/or cooling means, such means being automatically
controlled in response to some condition affecting the
operation of the load device.
(1) Note. The condition controlling the temperature
responsive means may be (1) the amount of current flow
through the load device, or (2) the temperature of the load
device, or (3) any other condition affecting the operation of
the load device.
(2) Note. See note (1) to the definition of subclass 112.
SEE OR SEARCH THIS CLASS, SUBCLASS:
114 and 116, for this subject matter where the heating means
is an electrical heater.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 429 for apparatus or methods
for subjecting fluent materials to radiant energy rays or
emanations, the apparatus being provided with means to
control the flow of fluent material. Some of the apparatus
in subclass 429 of Class 250 includes electrical systems
which are closely analogous to the systems in this subclass.
Where the fluent material is disclosed merely as a
temperature modifying medium for the lamp or discharge
devices, classification is in Class 315. Where the fluent
material is disclosed as a material being treated,
classification is in Class 250.
313, Electric Lamp and Discharge Devices, subclass 13, for
electric lamps and discharge devices which are combined with
means for modifying the temperature of the discharge device
or lamp and which have means for controlling the operation of
the temperature modifier in the apparatus. In Class 313 no
electrical system for the lamp or discharge device is
provided nor is there any electrical control system for
controlling the operation of the temperature modifier. The
excluded systems are found in this class (315) and not in
Class 313.
Subclass:
118
This subclass is indented under subclass 112. Systems
provided with means controlled by the temperature modifying
medium for altering the operation of the load device.
(1) Note. The control exercised over the load device may be
to open the circuit of the load device, to regulate the
current supply to the load device, or any other control
necessary for either the protection or the proper operation
of the load device in view of the condition of the
temperature modifying medium.
(2) Note. The temperature modifying means may control the
load device in response to (1) the temperature of the
temperature modifying medium, or (2) the rate of flow of the
temperature modifying medium, or (3) any other condition
which would affect the operation of the load device.
(3) Note. See note (1) to the definition of subclass 112.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 429 and 430 for methods and
apparatus for subjecting fluent materials to radiant energy
rays or emanations, the apparatus being provided with means
controlled by the fluent material being treated to control
the operation of the radiant energy ray generator. Some of
the apparatus in subclasses 430 and 453.11+ of Class 250
includes electrical systems which are closely analogous to
the systems in this subclass. Where the fluent material is
disclosed merely as a temperature modifying medium for the
lamp or discharge device, classification is in Class 315.
Where fluent material is disclosed as a material being
treated, classification is in Class 250.
Subclass:
119
This subclass is indented under the class definition.
Systems provided with means to complete an electrical circuit
in shunt about a load device or some part thereof, and/or to
open the load device current supply circuit, such means being
automatically operated (1) when the load device becomes
nonconductive or fails to operate properly, or (2) when the
supply voltage and/or current becomes too low or too high for
the proper operation of the load device or (3) when more than
a desired number of load devices are connected to the supply
circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
74 for lamps and discharge devices which have structurally
combined therewith, so as to form a unitary device, an
automatically operating electric switch which is connected
with the lamp or discharge device so as to either open the
circuit or close a shunt circuit about the lamp or discharge
device when it fails to operate properly.
88 and indented subclasses, for systems provided with (1)
two or more load devices, or (2) a load device of the
electric discharge type having a plurality of cathodes and/or
anodes, or (3) an electric lamp provided with two or more
filaments, and provided with means for automatically
substituting for (a) one of the load devices, another of the
load devices, or (b) the first operated electrode, another
electrode, or (c) the first operated filament, another
filament, when the first operated device, electrode, or
filament fails to operate properly.
106 and 107, for systems under the class definition wherein
the load device is a discharge device having a thermionic
cathode heated by the passage of electric current or an
indirectly heated cathode, the cathode or cathode heater
circuit including means to automatically open the cathode or
the cathode heater circuit in response to some condition
affecting the operation of the load device.
114 and 116, for systems wherein the load device is provided
with electric heating means, the current supply circuit for
the heating means being provided with an automatic cutout.
118 for systems under the class definition wherein the load
device is provided with a temperature modifying means, the
temperature modifying means controlling the operation of a
cutout switch for the load device.
129 and indented subclasses, for systems provided with
signal means, indicating means, and/or alarm means operated
by some means responsive to a condition of the load device to
indicate such condition.
340 for other systems under the class definition wherein the
load device is a discharge device and the system includes
means in the cathode-anode circuit for interrupting or
extinguishing the flow of electric discharge current between
the cathode and the anode.
360 for systems provided with a time controlled means for
(1) supplying a current to the load device for a
predetermined time, or (2) interrupting the supply of current
to the load device after a predetermined time lapse.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 10 and indented subclasses, for
consumable electrode discharge devices, and the systems
therefor, provided with an automatic shunt circuit closing
means or an automatic cutout means.
Subclass:
120
This subclass is indented under subclass 119. Systems having
combined therewith signaling means, or indicator means, or
alarm means operated by some part of the load device or the
electrical circuits therefor to indicate some condition in
the load device or the circuits therefor.
(1) Note. The condition indicated in the systems in this
subclass is usually the condition which causes the shunt
circuit closing means or the cutout means to operate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129 and indented subclasses, for other systems under the
class definition provided with signaling means, or indicator
means, or alarm means.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 10, for
the structure of electric lamps and discharge devices which
are provided with a temperature indicator, and subclasses
323+ for lamps and discharge devices which have combined
therewith a signaling means, indicator means or alarm means.
In the devices of Class 313 there is no electrical system for
supplying current to the lamp or discharge device and there
is no electrical system for controlling the signal indicator
or alarm. The excluded systems are in this class (315) and
not in Class 313.
324, Electricity: Measuring and Testing, 403 for apparatus
or methods for electrically testing electric lamps or space
discharge devices.
340, Communications: Electrical, 635 for electrical signal
or alarm systems responsive to or controlled by some
condition of some electrical apparatus.
Subclass:
121
This subclass is indented under subclass 119. Systems,
having a plurality of load devices connected in the system.
(1) Note. The automatic shunt or cutout means may operate
to complete a shunt circuit about and/or to cutout only one
of the plurality of load devices, or its supply circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
312 and the subclasses specified in the notes to the
definition of that subclass, for other plural load device
systems within the class definition.
Subclass:
122
This subclass is indented under subclass 121. Systems
wherein two or more of the load devices are connected in
electrical series relation with respect to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
179 and indented subclasses, for other systems having plural
diverse type load devices connected in series relation and
without an automatic shunt and/or cutout.
185 and indented subclasses, for miscellaneous series
connected load devices without an automatic shunt and/or
cutout.
Subclass:
123
This subclass is indented under subclass 119. Systems having
(1) a plurality of automatic shunt circuit closing means, (2)
a plurality of automatic cutouts, or (3) both an automatic
shunt circuit closing means and an automatic cutout means
connected in the system.
Subclass:
124
This subclass is indented under subclass 119. Systems
wherein the load device is provided with an auxiliary
electrode, the operation of the shunt circuit closing means
and/or of the cutout means being controlled by the current
and/or potential in the circuit which includes the auxiliary
electrode.
(1) Note. In some of the systems in this subclass, the load
device is an incandescent filament lamp having an auxiliary
electrode mounted in proximity to the filament, the auxiliary
electrode being connected in the system so that when the
filament is broken, the resultant arc contacts the auxiliary
electrode and the shunt circuit closing means or the cut-out
means is operated in response to the current flow in the
auxiliary electrode circuit.
(2) Note. This subclass includes systems in which the load
device is a discharge device having an auxiliary starting or
keep-alive electrode, the automatic shunt circuit closing
means or cut-out means being operated in response to the
current flow conditions in the auxiliary electrode circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
335 and the indented subclass and the subclasses specified
in the notes to the definition of those subclasses for other
systems under the class definition in which the load device
is a discharge device provided with an auxiliary electrode.
Subclass:
125
This subclass is indented under subclass 119. Systems
wherein the electrical circuit in shunt is completed about
the load device or some part thereof.
(1) Note. The shunt circuit may be of lower or higher
resistance than the resistance of the load device and/or the
part around which it is completed, and is often a
"short-circuit".
SEE OR SEARCH THIS CLASS, SUBCLASS:
75 for lamps and discharge devices which have structurally
combined therewith, so as to form a unitary device, an
automatically operated electric switch connected to the lamp
or discharge device so as to complete an electrical shunt
about the lamp or discharge device when it fails to operate
properly.
122 for this subject matter where the system includes a
plurality of series connected load devices.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 11 and indented subclasses, for
consumable electrode discharge devices, and the systems
therefor, provided with an automatic shunt circuit closing
means.
361, Electricity: Electrical Systems and Devices, subclass
70 for miscellaneous systems having means to restore the
circuit by closing a shunt circuit about a load device.
Subclass:
126
This subclass is indented under subclass 125. Systems
provided with an electrical impedance in the shunt circuit.
(1) Note. This subclass includes systems wherein an
electro-responsive switch, such as an electromagnetic or
thermostatic switch, is utilized to close the shunt circuit,
and the switch operating means, such as the electromagnet
coil, or the heater for the thermostat, is included in the
shunt circuit so as to hold the switch in operated condition
as long as the supply voltage is maintained.
SEE OR SEARCH THIS CLASS, SUBCLASS:
122 for this subject matter where the system includes a
plurality of series connected load devices.
306 for systems provided with a current and/or voltage
regulator for the load device connected in shunt relation to
the load device.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 13, and indented subclass, for
consumable electrode discharge device systems provided with
an automatic shunt circuit closing means for connecting a
compensating impedance in shunt to the discharge device.
Subclass:
127
This subclass is indented under subclass 119. Systems
provided with an electrically operated switch to control the
circuit of the discharge device, the switch being operated by
means of the current and/or potential changes in the supply
circuit of the load device.
(1) Note. This subclass includes systems provided with a
fuse.
SEE OR SEARCH THIS CLASS, SUBCLASS:
120 for this subject matter where the system includes signal
means, an indicator, or an alarm.
121 and indented subclass, for this subject matter where
there are a plurality of load devices in the system.
123 for this subject matter where the system includes a
plurality of shunts and/or cutouts.
124 for this subject matter where the electrically operated
switch is controlled by an auxiliary electrode in the load
device.
125 and indented subclass, for this subject matter where the
switch closes a shunt circuit about the load device.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 15 and indented subclass, for
consumable electrode discharge devices, and the systems
therefor provided with an electrically operated switch
operated by means of current changes in the circuit of the
discharge device to complete a shunt circuit about the
discharge device, and subclass 18 and indented subclass for
such systems for cutting out or opening the circuit of the
discharge device.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 2 for electromagnetically actuated
switches of general application.
337, Electricity: Electrothermally or Thermally Actuated
Switches, 14 for electrothermally responsive electric
switches of general application.
Subclass:
128
This subclass is indented under subclass 127. Systems
wherein the electrical switch is provided with a plurality of
operating means.
(1) Note. The switch may be provided with two or more
electromagnet coils, or may be a combined thermostatic and
electromagnet switch or be provided with any other kind of
plural operating means.
(2) Note. The switch may be arranged so that either of the
switch operating means may actuate the switch, or the switch
may be arranged so that the switch will be actuated only when
both of the actuating means are at a predetermined condition,
or the switch may be arranged so that one of the means
furnishes a biasing force against or for actuation, the other
switch operating means completing the actuation of the
switch.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 177 for electromagnetically operated
switches having plural operating magnet means and subclass
266 for electromagnets with armature utilizing plural coils
or magnets.
Subclass:
129
This subclass is indented under the class definition.
Systems provided with signaling means, or indicator means, or
alarm means operated by some part of the load device or the
electrical circuits therefor to indicate some condition in
the load device or the circuits therefor.
(1) Note. The condition indicated may be the operative or
inoperative condition of the load device or the circuit
therefor, or the time that the load device has been operated,
or the degree of heat of some part of the discharge device,
or any other desired condition.
(2) Note. This and the indented subclasses do not include
systems where a lamp or gas or vapor discharge device is the
sole signal or indicator means to show some condition in
system except where the casing or mounting for the signal
lamp or discharge device which is used as a signal is
claimed. Patents excluded are cross-referenced to this or
the indented subclasses and are cross-referenced to this or
the indented subclasses and are classified either as a plural
load device system or in subclasses 88+ where the signal lamp
or discharge device is operative only on failure of a first
operated lamp or discharge device to operate properly. See
the reference to subclasses 88+ under "Search This Class,
Subclass", below. Where one of the lamps or discharge
devices is claimed broadly as a signaling means, the patent
is placed in this or the indented subclasses and
cross-referenced to the other appropriate subclasses in this
class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
88 and indented subclasses, where the system includes two
load devices and the system is arranged so that one of the
load devices is energized only after the first load device
fails to operate, even though the second operated load device
is disclosed and claimed as a signal for the first operated
load device, excepting where the casing or mounting for the
load device which is used as a signal is claimed when the
patent is placed in this subclass (129) or the indented
subclasses and cross-referenced to subclass 88, and indented
subclasses.
119 and indented subclasses, for systems under the class
definition provided with automatically operating means to
complete an electrical circuit in shunt about the discharge
device or some part thereof, and/or to open the electric
circuit of the discharge device or some part thereof, such
means being automatically operated in response to some
condition of the discharge device which prevents further
operation of the discharge device in the normal manner,
especially subclass 120 where the system also includes
automatically operating means to open the circuit and/or
close a shunt circuit about the load device when the load
device fails to operate properly.
SEE OR SEARCH CLASS:
116, Signals and Indicators, appropriate subclasses, for
nonelectrical signals and indicators of general application.
313, Electric Lamp and Discharge Devices, subclass 10, for
the structure of electric lamps and discharge devices which
are provided with a temperature indicator and subclasses 323+
for lamps and discharge devices which have combined therewith
a signaling means, indicator means or alarm means. In the
devices in Class 313 there is no electrical system for
supplying current to the lamp or discharge device and there
is no electrical system for controlling the signal indicator
or alarm. The excluded systems are in this class (315) and
not in Class 313.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 9, for consumable electrode discharge
devices, and the systems therefor provided with signaling
means, or indicator means, or alarm means.
324, Electricity: Measuring and Testing, 403 for apparatus
or methods for electrically testing electric lamps or space
discharge devices.
340, Communications: Electrical, 500 for electric signaling
systems automatically responsive to a condition, particularly
subclasses 641+ for a signalling light condition responsive
indicating system.
Subclass:
130
This subclass is indented under subclass 129. Systems having
a plurality of load devices connected in the system.
(1) Note. The signal, indicator, or alarm means may
indicate the condition of only one of the plurality of load
devices, or of its supply circuit.
(2) Note. Where a single lamp or a single discharge device
is the ultimate load device, and the system includes an
additional lamp and/or discharge device in the circuit which
is connected in the circuit so as to control and/or modify
the current and/or potential supplied to such single ultimate
load device, the patent is classified as a plural load device
system if (a) the controlling and/or modifying device is a
lamp, or (b) the controlling and/or modifying device is
limited in the claims to being a gas or vapor discharge
device. Conversely, such a system is not classified as a
plural load device system where the controlling and/or
modifying device is claimed broadly as a discharge device
even though it is disclosed as a gas or vapor discharge
device.
The controlling and/or modifying device may be connected in
the control circuit of the discharge device where the
ultimate load device is a discharge control discharge device,
and the same basis of classification is used as is set forth
above.
Subclass:
131
This subclass is indented under subclass 130. Systems having
the signal, indicator, or alarm means so arranged that the
condition of any one of two or more of the load devices or of
their supply circuits will be indicated by the signal,
indicator or alarm means.
Subclass:
132
This subclass is indented under subclass 131. Systems
provided with a plurality of signaling means, or indicator
means, or alarm means.
(1) Note. Each of the signal, indicator, or alarm means may
indicate the condition of only one of the load devices or its
supply circuit, or there may be a plurality of signal,
indicator, or alarm means, one of which may be arranged to
indicate the condition of two or more of the load devices, or
their supply circuits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
133 for plural signals, indicators, or alarms associated
with single load devices.
Subclass:
133
This subclass is indented under subclass 129. Systems
provided with a plurality of signaling means, or indicator
means, or alarm means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
132 for plural load device systems under the class
definition provided with a plurality of signal, indicator, or
alarm means for selectively indicating the condition of a
plurality of load devices or their supply circuits.
Subclass:
134
This subclass is indented under subclass 129. Systems
provided with a device sensitive to the radiant energy
generated by the load device for controlling the operation of
the signal, indicator, or alarm means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
149 and indented subclasses, for systems not having
indicators, etc., provided with a radiant energy sensitive
device for controlling the operation of the load device.
SEE OR SEARCH CLASS:
250, Radiant Energy, 200 and the classes and subclasses
specified in the Notes thereto for photocell control electric
circuits and photocell apparatus.
337, Electricity: Electrothermally or Thermally Actuated
Switches, 298 for thermally responsive electric switches.
Subclass:
135
This subclass is indented under subclass 129. Systems
provided with a discharge device or rectifier connected in
the circuit of the signal, indicator or alarm means, the
signal, indicator or alarm means being controlled by the
current flowing through the discharge device or the
rectifier.
(1) Note. Where the discharge device in the signal,
indicator, or alarm means circuit is of the type defined in
the class definition as being included as a load device in
this class, the patent is classified as a plural load device
system in subclass 130 and indented subclasses above even
though the discharge device is not disclosed or claimed as
anything more than a means for controlling the current flow
to the signal, indicator, or alarm means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
200 and indented subclasses, for systems provided with a
discharge device or rectifier connected either in electrical
series relation or electrical shunt relation to the load
device and the source of current supply for the load device.
Subclass:
136
This subclass is indented under subclass 129. Systems having
an electrical signal, indicator, or alarm means, the circuit
of the electrical signal, indicator, or alarm means being
controlled by an electrically operated electric switch which
is actuated in response to some condition of the load device
or its supply circuit.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, particularly
subclass 12 and indented subclass.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 2 for electromagnetically operated
switches of general application.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses.
340, Communications: Electrical, 500 for electric signaling
systems automatically responsive to a condition.
Subclass:
137
This subclass is indented under the class definition.
Systems provided with (1) means for supplying electrical
energy from a source of polyphase alternating currents to one
or more load devices, or (2) a source of polyphase
alternating current and means for converting the polyphase
alternating currents to current of another character which is
supplied to one or more load devices.
(1) Note. In the systems of (1) above, the source of
current may be either a direct or single phase alternating
current, the system including means to convert the current to
polyphase alternating currents which are supplied to one or
more load devices.
(2) Note. In the system of (2) above, the polyphase
alternating currents may be converted to either single phase
alternating current or direct current which is supplied to
one or more devices.
(3) Note. Where a single lamp or a single discharge device
is the ultimate load device, and the system includes an
additional lamp and or discharge device in the circuit which
is connected in the circuit so as to control and/or modify
the current and/or potential supplied to such single ultimate
load device, the patent is classified as a plural load device
system if (a) the controlling and/or modifying device is a
lamp, or (b) the controlling and/or modifying device is
limited in the claims to being a gas or vapor discharge
device. Conversely, such a system is not classified as a
plural load device system where the controlling and/or
modifying device is claimed broadly as a discharge device
even though it is disclosed as a gas or vapor discharge
device.
The controlling and/or modifying device may be connected in
the control circuit of the discharge device where the
ultimate load device is a discharge control discharge device,
and the same basis of classification is used as is set forth
above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160 and indented subclasses, for systems provided with a
plurality of sources of current supply, not especially
indented subclass 174, for such systems having a plurality of
alternating current supplies of diverse types.
194 and indented subclasses, for systems wherein the
discharge device is provided with discharge controlling
means, such as a grid electrode, and the discharge control
circuit includes means to shift the phase of the control
current or potential with respect to the pulsating and
alternating current in the cathode-anode circuit of the
discharge device. In the systems of subclass 194 and
indented subclasses, the source of supply current for the
load device need not be a pulsating or alternating current.
Where the source of supply current is pulsating or
alternating, and the control means is claimed as an auxiliary
starting electrode, the patent is classified in this subclass
(137) or the indented subclasses and cross-referenced to
subclass 194 and indented subclasses. Where the claims only
recite a control device even though an auxiliary starting
electrode is disclosed, the patent is classified in subclass
194 and indented subclasses.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 13
for polyphase circuits of general application.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 31, for consumable electrode discharge
devices in combination with means for supplying polyphase
alternating currents to the discharge device.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses, for polyphase alternating current
systems having a single input and a single output circuit and
provided with means for controlling the voltage and/or
current and/or phase of the polyphase alternating current.
363, Electric Power Conversion Systems, appropriate
subclasses for conversion systems which are supplied with
polyphase alternating currents, particularly 1 for combined
or plural conversions systems; subclasses 13+ for current
conversion (e.g., rectification, decertification) systems;
subclasses 148+ for systems for converting an input
alternating current having one number of phases into
alternating current having a different number of phases; and
subclasses 157+ for frequency conversion systems which may be
supplied with polyphase alternating current.
Subclass:
138
This subclass is indented under subclass 137. Systems
provided with (1) a source of single phase alternating
current and means to convert the single phase current to
polyphase alternating currents, or (2) a source of polyphase
alternating currents and means to convert the polyphase
currents to either single phase currents or polyphase
alternating currents of a different number of phases.
(1) Note. Systems under the class definition provided with
a single phase source of supply and "phase splitting" means
for supplying the load device with polyphase currents are in
this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
194 and indented subclasses, for systems under the class
definition wherein the load device is a discharge control
discharge device having discharge control means, and the
control circuit includes means to shift the phase of the
control current or voltage with respect to the current
flowing in the cathode-anode circuit of the load device. For
the line between this subclass (138) and subclass 194 and
indented subclasses, see the notes to the definition of
subclass 137.
SEE OR SEARCH CLASS:
363, Electric Power Conversion Systems, 2 and the subclasses
mentioned in the notes thereto, for systems for converting an
alternating current having one number of phases into
alternating current having another number of phases either
alone or in combination with current and/or frequency
conversion.
Subclass:
139
This subclass is indented under subclass 138. Systems
wherein the source of supply is a source of polyphase
alternating currents.
Subclass:
140
This subclass is indented under subclass 139. Systems
provided with means for converting the polyphase alternating
currents of the supply source to polyphase alternating
currents of a greater number of phases which are supplied to
the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
138 for systems under the class definition for converting
single phase alternating currents to polyphase alternating
currents.
Subclass:
141
This subclass is indented under subclass 137. Systems
provided with transformer means connected between the source
of supply and the load device for supplying electric current
to the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
140 for this subject matter where the system includes phase
multiplying means.
276 and indented subclasses, and the subclasses specified in
the notes thereto for other systems in this class provided
with a transformer in the supply circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 361, for miscellaneous polyphase transformer
systems.
336, Inductor Devices, 5 for the structure of polyphase
transformers and inductive reactors.
Subclass:
142
This subclass is indented under subclass 141. Systems
wherein the transformer means includes at least two sets of
transformer windings, each of the sets of transformer
windings including a plurality of windings connected to a
common connecting point, the two common connecting points
being connected together by means of an inductive winding
which either constitutes, or is a part of, an interphase
transformer.
(1) Note. One of the more common types of transformer means
included in the subclasses is the type wherein the secondary
of the transformer is provided with two star connected
polyphase windings, the neutral points being connected
together by means of an inductance, the star connected
windings being connected to either (1) a plurality of
discharge devices or (2) to the anodes of a plural cathode
and/or anode discharge device, the common return conductor
from the plural discharge devices or the return conductor
from the cathode of the plural cathode and/or anode discharge
device being connected to the midpoint of the inductance so
that the inductance functions as an interphase
autotransformer.
Subclass:
143
This subclass is indented under subclass 141. Systems in
which the transformer means is provided with a plurality of
phase coils, and means are provided for connecting the phase
coils in different manners with respect to each other.
(1) Note. One of the more common types of transformer means
included in this subclass is the type in which the primary or
secondary phase coils may be connected either in star or
delta.
Subclass:
144
This subclass is indented under subclass 141. Systems having
a plurality of load devices connected to the transformer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
138 and indented subclasses, for this subject matter where
there is a phase changing transformer in the supply circuit
of the plurality of load devices, especially indented
subclass 140, where the transformer means is a phase
multiplying means.
146 for other plural load device systems under subclass 137
where there are a plurality of discharge control discharge
device load devices in the system.
Subclass:
145
This subclass is indented under subclass 141. Systems in
which the load device which is connected to the transformer
is a discharge device having two or more cathodes and/or two
or more anodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
147 and indented subclass, for other systems under subclass
137 wherein the load device is a plural cathode and/or anode
discharge device.
260 and indented subclasses, for other alternating current
systems under the class systems wherein the load device is a
plural cathode and/or anode discharge device.
334 and indented subclasses, and the subclasses specified in
the notes to the definition of those subclasses, for other
systems under the class definition wherein the load device is
a plural cathode and/or anode discharge device.
Subclass:
146
This subclass is indented under subclass 137. Systems having
a plurality of discharge device load devices in the system,
the discharge devices being provided with a discharge
controlling means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
195 and indented subclasses, for systems wherein there are a
plurality of discharge control discharge device load devices,
the system including phase shifting means to vary the phase
of the discharge controlling current and/or potential with
respect to the current flow in the cathode-anode circuit of
the discharge device.
252 and see the notes thereto for other alternating current
systems which include a plurality of discharge control
discharge device load devices.
325 and the subclasses specified in the notes to the
definition of that subclass, for other systems which include
a plurality of discharge control discharge device load
devices.
Subclass:
147
This subclass is indented under subclass 137. Systems in
which the load device is a discharge device having two or
more cathodes and/or two or more cathodes and/or two or more
anodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
145 for this subject matter where the system includes a
transformer in the supply circuit of the load device.
260 and indented subclasses, for other systems under the
class definition wherein a plural cathode and/or anode load
device is supplied with alternating current.
334 and indented subclasses, and the subclasses specified in
the notes to the definition of those subclasses, for other
plural cathode and/or anode load device systems.
Subclass:
148
This subclass is indented under subclass 147. Systems in
which the discharge device is provided with a discharge
controlling means.
(1) Note. Systems under subclass 147 in which the discharge
device is provided with an auxiliary discharge electrode are
classified in this subclass. The auxiliary electrode may be
supplied with alternating current which is out of phase with
the current supplied to the principal electrode, or the
principal electrodes may be connected to a polyphase system
and the auxiliary electrode may be supplied with current of
any character.
SEE OR SEARCH THIS CLASS, SUBCLASS:
146 for polyphase systems which include two or more
discharge device loads, having a discharge controlling
means.
261 and indented subclasses, subclass 267, and subclass 268
and indented subclasses, for nonpolyphase alternating current
systems having a discharge device load with a discharge
controlling means; subclass 261 and indented subclasses, for
plural cathode and/or anode type with an auxiliary starting
electrode, subclass 267, for those with an electromagnet
control means, and subclass 268 and indented subclasses for
those with miscellaneous control means.
335 and indented subclass, subclass 339, subclass 341 and
indented subclasses, subclass 344 and indented subclasses,
and subclass 349 and indented subclasses, for nonalternating
current systems having a discharge device load with a
discharge controlling means; and subclass 335 and indented
subclass, and subclass 339, for plural cathode and/or anode
type, subclass 335, with an auxiliary starting electrode and
subclass 339 with miscellaneous discharge controlling means;
subclass 341 and indented subclasses, for devices having
plural discharge control means; subclass 349 and indented
subclasses, for devices having miscellaneous discharge
control means.
Subclass:
149
This subclass is indented under the class definition.
Systems wherein the system includes means for controlling the
operation of the load device by means of radiant energy.
(1) Note. The load device may be a radiant energy sensitive
device, that is, a load device whose operation is altered
when subjected to radiant energy, or the system may include a
radiant energy sensitive device, such as a photocell, which
controls the operation of the load device when subjected to
radiant energy.
(2) Note. The term "radiant energy" as used in this
subclass and the indented subclasses includes radiant energy
of any type, such as X-ray, light rays whether within the
visible spectrum or not, Herztian waves and other radiated
electrical energy, and emanations from radio-active
substances.
SEE OR SEARCH THIS CLASS, SUBCLASS:
10 and indented subclass, for cathode-ray tube loads with
radiant energy sensitive control means.
34 for structurally combined load devices and antenna.
SEE OR SEARCH CLASS:
250, Radiant Energy, 200 and the classes and subclasses
specified in the Notes thereto for photocell controlled
electric circuits and photocell apparatus.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 63, for consumable electrode discharge
device systems provided with a radiant energy ray device for
controlling the operation of the consumable electrode
device.
340, Communications: Electrical, subclass 825.69 and 825.72
are the generic subclasses for the control of apparatus and
devices at a distance by means of radio wave energy.
Subclass:
150
This subclass is indented under subclass 149. Systems
wherein the load device is a radiant energy sensitive device,
that is, a load device whose operation is altered when
subjected to radiant energy rays.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 523 and the
subclasses specified in the Notes thereto for radiant energy
sensitive electric lamps and discharge device structures, per
se.
Subclass:
151
This subclass is indented under subclass 149. Systems having
the radiant energy sensitive device arranged with respect to
the load device so that radiant energy generated by the load
device is applied to the radiant energy sensitive device.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 205, for similar systems where
the system is provided with means for supplying output
current to a device other than a lamp or gas or vapor type
electronic tube or when the system includes significant
apparatus, such as supporting or mounting means for the lamp
or gas or vapor tube, which is excluded from this class (315)
by the class definition.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 63, for consumable electrode discharge
device systems, having the spacing of the discharge
electrodes with respect to each other controlled by a radiant
energy sensitive device which is subjected to the radiant
energy generated by the discharge between such electrodes.
Subclass:
152
This subclass is indented under subclass 149. Systems having
a plurality of load devices connected in the system.
(1) Note. Where a single lamp or a single discharge device
is the ultimate load device, and the system includes an
additional lamp and/or discharge device in the circuit which
is connected in the circuit so as to control and/or modify
the current and/or potential supplied to such single ultimate
load device, the patent is classified as a plural load device
system if (a) the controlling and/or modifying device is a
lamp, or (b) the controlling and/or modifying device is
limited in the claims to being a gas or vapor discharge
device. Conversely, such a system is not classified as a
plural load device system where the controlling and/or
modifying device is claimed broadly as a discharge device,
even though it is disclosed as a gas or vapor discharge
device.
The controlling and/or modifying device may be connected in
the control circuit of the discharge device where the
ultimate load device is a discharge control discharge device,
and the same basis of classification is used as is set forth
above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
312 and indented subclasses, and the subclasses referred to
in the notes to the definition for other plural load device
systems under the class definition.
Subclass:
153
This subclass is indented under subclass 152. Systems
wherein one or more of the load devices may be energized
separately from the other load device in the system, the
selection of the load device or devices to be energized being
controlled by the radiant energy sensitive means.
Subclass:
154
This subclass is indented under subclass 153. Systems
wherein the means for selecting the load device or devices to
be energized is an electrically operated switch whose
operation is controlled by the radiant energy sensitive
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
313 and indented subclasses, for other plural load device
systems under the class definition provided with selective
switching means.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, 173 for
photocell controlled relay circuits.
Subclass:
155
This subclass is indented under subclass 149. Systems having
a plurality of radiant energy sensitive devices connected in
the system.
Subclass:
156
This subclass is indented under subclass 149. Systems having
a discharge device connected either in electrical series
relation or electrical shunt relation to the source of
current supply for the load device and the load device the
operation of the discharge device being controlled by the
radiant energy sensitive means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
200 and indented subclasses, and the subclasses referred to
in the notes to the definition, for other systems under the
class definition provided with a discharge device or
rectifier in the supply circuit of the load device.
SEE OR SEARCH CLASS:
250, Radiant Energy, 206, for miscellaneous electric circuits
which are controlled by a photocell.
Subclass:
157
This subclass is indented under subclass 149. Systems
wherein the load device is a discharge device having a
discharge controlling means, and the system includes means
for applying an electric current and/or potential to the
discharge control means, the application of the discharge
controlling current and/or potential being controlled by the
radiant sensitive means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
335 and indented subclass and the subclasses specified in
the notes to the definition of these subclasses, for
discharge device loads having an auxiliary starting
electrode.
339 and subclass 341 and indented subclasses, and the
subclasses specified in the notes to those subclasses for
discharge device loads provided with a plurality of discharge
control means.
344 and indented subclasses, and the subclasses specified in
the notes to those subclasses, for discharge device loads
when the discharge control means is an electromagnet.
349 and the subclasses specified in the notes to those
subclasses, for other discharge device loads provided with
discharge control means.
SEE OR SEARCH CLASS:
250, Radiant Energy, 206, for miscellaneous electric circuits
which are controlled by a photocell.
Subclass:
158
This subclass is indented under subclass 149. Systems
provided with means to regulate the current or voltage
supplied to the load device, the regulating means being
controlled by the radiant energy sensitive devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
151 for this subject matter where the system includes means
to subject the radiant energy sensitive device to the radiant
energy generated by the load device the radiant energy device
controlling the regulating means.
291 and indented subclasses for other systems provided with
means to regulate the current and/or voltage supplied to the
load device.
Subclass:
159
This subclass is indented under subclass 149. Systems
provided with an electrically operated circuit controlling
switch whose operation is controlled by the radiant energy
sensitive means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
313 and indented subclasses, and subclass 362, and the
subclasses specified in the notes to the definition of those
subclasses for other systems which include a switch in the
supply circuit of the load device.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, 173 for
photocell controlled relay circuits.
Subclass:
160
This subclass is indented under the class definition.
Systems provided with two or more sources of current supply.
(1) Note. The sources of current supply may be of the same
or diverse types and each of the sources may supply current
to the same load device either simultaneously or alternately
or each of the sources may supply current to a separate load
device.
(2) Note. To be diverse type current supplies, the current
supplies must differ in some electrical characteristics.
Alternating currents of different frequencies, a source of
current of constant potential and a source of current of
varying potential, a rectified alternating current and a
source of direct current, are examples of diverse type
current supplies. Where the circuit for supplying the load
device with current includes a current modifying means which
may be used at selected intervals to modify the current
flowing in the supply circuit so that the load device is
sometimes supplied with one type of current from the source
of supply and is at other times supplied from the same source
of supply with the modified current, the system is not
included in this subclass or the indented subclasses, but
will be found in the appropriate subclasses below.
(3) Note. This subclass does not include systems wherein
one source of energy is a storage battery or similar device
designed to be charged at least at times from either the
other source of supply or from an independent source of
current supply. Such systems are considered to include a
load device other than a discharge device or lamp and
therefore not within the definition of this class and will be
found for the most part in Class 307, Electrical Transmission
or Interconnection Systems, subclasses 46, 48+, 66+, and
155+, and Class 320, Electricity: Battery or Capacitor
Charging or Discharging, having battery charging and/or
discharging, per se, many patents disclosing, but not
claiming, an additional lamp or discharge device load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86 for systems including means to supply a load device with
current from one source and automatically operated means to
substitute a second source of current supply when the first
source fails to operate properly, including substitution of a
second diverse source.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, see
(3) Note above.
Subclass:
161
This subclass is indented under subclass 160. Systems having
a plurality of load devices in the system.
(1) Note. Where a single lamp or a single discharge device
is the ultimate load device, and the system includes an
additional lamp and/or discharge device in the circuit which
is connected in the circuit so as to control and/or modify
the current and/or potential supplied to such single ultimate
load device, the patent is classified as a plural load device
system, if (a) the controlling and/or modifying device is a
lamp, or (b) the controlling and/or modifying device is
limited in the claims to being as a gas or vapor discharge
device. Conversely, such a system is not classified as a
plural load device system where the controlling and/or
modifying device is claimed broadly as a discharge device,
even though it is disclosed as a gas or vapor discharge
device.
The controlling and/or modifying device may be connected in
the control circuit of the discharge device where the
ultimate load device is a discharge control discharge device,
and the same basis of classification is used as is set forth
above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
312 and indented subclasses, and the subclasses specified in
the notes to the definition of that subclass for other plural
load device systems under the class definition.
Subclass:
162
This subclass is indented under subclass 161. Systems
wherein at least one of the load devices is of a different
type from that of another of the load devices.
(1) Note. To be considered diverse type load devices, the
load devices must differ in some electrical characteristics.
SEE OR SEARCH THIS CLASS, SUBCLASS:
87 for systems under the class definition wherein the system
includes a plurality of diverse type load devices and a
plurality of sources of current supply of diverse types, the
system including means to supply current to one of the load
devices from one of the sources of current supply and
automatically operated means to substitute another diverse
type load device and diverse type current supply for the
first operated load device and current supply when they fail
to operate properly.
178 and indented subclasses, and see the notes to the
definitions thereof for other systems having plural load
devices of diverse types.
Subclass:
163
This subclass is indented under subclass 162. Systems
wherein at least two of the sources of current supply are of
diverse types and at least one of the load devices is
supplied with current from each of the two diverse current
supplies simultaneously.
(1) Note. The types of current supplies which are
considered to be diverse types are defined in the notes to
the definition of subclass 160.
SEE OR SEARCH THIS CLASS, SUBCLASS:
166 for systems having plural load devices of the same type
and a plurality of diverse type current sources which
simultaneously supply current to at least one load device.
176 for single load device systems which include a plurality
of diverse type current sources which simultaneously supply
current thereto.
Subclass:
164
This subclass is indented under subclass 161. Systems
wherein at least two sources of current supply are connected
in electrical series relation with respect to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
170 for single load device systems provided with a plurality
of series connected current supply sources.
Subclass:
165
This subclass is indented under subclass 161. Systems
wherein at least two sources of current supply are of diverse
types.
(1) Note. The types of current supplies which are
considered to be diverse types are defined in the notes to
the definition of subclass 160 of this class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
162 for this subject matter where there are a plurality of
diverse type load devices in the system.
175 and indented subclasses, and the subclasses specified in
the notes to the definitions thereof, for other systems
wherein at least two of the sources of current supply are of
diverse types.
Subclass:
166
This subclass is indented under subclass 165. Systems
wherein at least one of the load devices is supplied with
current from each of two diverse current supplies
simultaneously.
SEE OR SEARCH THIS CLASS, SUBCLASS:
163 for this subject matter where there are plural load
devices of diverse types.
164 and 170, where the sources of current supply are
connected in electrical series relation with respect to each
other.
176 for this subject matter where there is a single load
device.
Subclass:
167
This subclass is indented under subclass 160. Systems
wherein the load device is a discharge device which has two
or more cathodes and/or two or more anodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 and indented subclasses, and the subclasses specified in
the notes thereto for other plural cathode and/or anode load
device systems.
Subclass:
168
This subclass is indented under subclass 167. Systems
wherein the discharge device is provided with at least one
principal anode and at least one principal cathode and an
auxiliary discharge electrode, the discharge device being
connected in the system with one source of supply connected
between a principal cathode and a principal anode and another
source of supply of a diverse type connected between the
auxiliary discharge electrode and one of the principal
electrodes.
(1) Note. The type of current supplies which are considered
to be diverse types are defined in note (2) to the definition
of subclass 160.
SEE OR SEARCH THIS CLASS, SUBCLASS:
169.1 for other systems wherein different electrodes of a
plural cathode and/or anode load device are supplied with
diverse types of current.
335 and indented subclass, and the subclasses specified in
the notes to the definition of these subclasses, for other
discharge device systems wherein the discharge device is
provided with an auxiliary starting electrode.
Subclass:
169.1
Diverse-type energizing or bias supplies to different
electrodes:
This subclass is indented under subclass 167. Subject matter
in which the discharge device is connected so that the
discharge path between one anode and cathode is supplied with
energizing or bias current from one source of supply and a
different discharge path between another anode and cathode
path is supplied with current from another source of supply
of a diverse type.
(1) Note. Distinction should be made between subject matter
claiming energizing or bias potentials which may turn on a
display either entirely or in a nonimage mode, classifiable
here, and subject matter claiming selective energizing,
pulsing or other input responsive signaling which results in
a display producing a light image or message which subject
matter is classifiable in Class 345.
(2) Note. The type of current (energizing or bias) supplies
which are considered to be diverse are defined in Note (2) of
the definition of subclass 160. Other examples of diverse
current sources may be lines carrying different "phases" of a
clock pulse source, or lines carrying different time based
pulses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
168 for this subject matter where the discharge device is
provided with an auxiliary discharge electrode, one source of
current being connected to the principal cathode and the
principal electrode and one of the principal electrodes.
337 for systems wherein the load device is a plural cathode
and/or anode discharge device, the discharge device being
supplied with current for the different anodes or cathodes
from a single source of supply and means being provided so
that different potentials are maintained at different anodes
or cathodes.
Subclass:
169.2
Including shifting of register, counter, or display:
This subclass is indented under subclass 169.1. Subject
matter in which the effect of the energizing currents is to
make the discharge path in the discharge device move from one
position to a next position.
(1) Note. Such discharge path movement or shifting may be a
subcombination of pulse input into a register, and added
count in a counter, or the input of display array control
signals into a gas panel display. Caveat: Where "writing",
"erasing", data responsive, or other selective structure or
function is recited, such a claim to the combination of
display panel and selective control is classified in Class
345.
SEE OR SEARCH CLASS:
365, Static Information Storage and Retrieval, for magnetic
registers for data storage, 185.01 for floating gate memory
storage (e.g., flash memory).
377, Electrical Pulse Counters, Pulse Dividers, or Shift
Registers: Circuits and Systems.
Subclass:
169.3
Electroluminescent device:
This subclass is indented under subclass 169.1. Subject
matter in which the discharge device includes
electroluminescent material.
Subclass:
169.4
Gas display panel devices:
This subclass is indented under subclass 169.1. Subject
matter in which the discharge device is a gas or plasma
panel.
Subclass:
170
This subclass is indented under subclass 160. Systems,
wherein at least two sources of current supply are connected
in electrical series relation with respect to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
164 for this subject matter where there are a plurality of
load devices in the system.
Subclass:
171
This subclass is indented under subclass 160. Systems
provided with a discharge device or an electric current
rectifier connected either in electrical series relation or
electrical shunt relation to the load device and one of the
sources of current supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
200 and indented subclasses, for other systems provided with
a rectifier or a discharge device in the supply circuit of
the load device.
Subclass:
172
This subclass is indented under subclass 160. Systems having
a periodic switch connected in at least one of the current
supply circuits so as to periodically interrupt or vary the
flow of current to the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
209 and indented subclasses for other systems provided with
a periodic switch connected in the supply circuit of the load
device.
Subclass:
173
This subclass is indented under subclass 160. Systems having
a condenser connected either in electrical series relation or
electrical shunt relation to the load device and one of the
sources of current supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 and indented subclasses, for other systems provided with
a condenser in the supply circuit of the load device.
Subclass:
174
This subclass is indented under subclass 160. Systems
wherein at least two of the sources of supply are pulsating
and/or alternating current sources, the current sources being
of a diverse type with respect to each other.
(1) Note. The types of current supplies which are
considered to be diverse types are defined in note (2) to the
definition of subclass 160 of this class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
246 and indented subclasses, for other systems wherein the
load device is connected to a source of alternating current
supply.
Subclass:
175
This subclass is indented under subclass 160. Systems
wherein two of the sources of current supply are of diverse
types.
(1) Note. The type of current supplies which are considered
to be diverse types are defined in note (2) to the definition
of subclass 160, of this class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86 and indented subclass for systems wherein means are
provided to operate the load device from one source of supply
while a second source of the same or diverse type is
maintained in nonoperating condition, and the system includes
means which operate automatically in response to some
condition affecting the operation of the system, such as a
failure of the current supply source, to connect the
nonoperating source of energy in operative relation in the
system to supply current to the load device.
Subclass:
176
This subclass is indented under subclass 175. Systems
wherein a load device is supplied with current from each of
the two diverse current supplies simultaneously.
SEE OR SEARCH THIS CLASS, SUBCLASS:
163 for this subject matter where there are plural diverse
type load devices.
164 where the current supply sources are connected in
electrical series relation and there are plural load devices
of the same type.
166 for this subject matter where there are plural load
devices of the same type.
168 and 169, for this subject matter where the load device
is a plural cathode and/or anode discharge device.
170 where there is a single load device and the current
supplies are connected in electrical series relation.
174 for this subject matter in which there are diverse
pulsating and/or alternating current supplies.
Subclass:
177
This subclass is indented under the class definition.
Systems provided with a transformer connected between the
source of supply and a load device for supplying electric
current and/or potential to the load device, the system also
including a load device connected in the primary circuit of
the transformer.
(1) Note. Where a single lamp or a single discharge device
is the ultimate load device, and the system includes an
additional lamp and/or discharge device in the circuit which
is connected in the circuit so as to control and/or modify
the current and/or potential supplied to such single ultimate
load device, the patent is classified as a plural load device
system if (a) the controlling and/or modifying device is a
lamp, or (b) the controlling and/or modifying device is
limited in the claims to being a gas or vapor discharge
device. Conversely, such a system is not classified as a
plural load device system where the controlling and/or
modifying device is claimed broadly as a discharge device
even though it is disclosed as a gas or vapor discharge
device.
The controlling and/or modifying device may be connected in
the control circuit of the discharge device where the
ultimate load device is a discharge control discharge device,
and the same basis of classification is used as is set forth
above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
200 and indented subclasses and the subclasses referred to
in the notes to the definitions thereof for other systems
provided with a discharge device or rectifier in the supply
circuit of a load device.
254 and the subclasses specified in the notes to the
definition of these subclasses, for other plural load device
systems having a transformer connected in the supply
circuit.
276 and indented subclasses, and the subclasses specified in
the notes to these subclasses for other single load device
systems having a transformer connected in the supply circuit
of the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 355-363, for miscellaneous transformer systems.
Subclass:
178
This subclass is indented under the class definition.
Systems having two or more load devices connected in the
system, at least one of the load devices being of a different
type from another of the load devices.
(1) Note. To be considered diverse type load devices, the
load devices must differ in some electrical characteristic.
Mere difference in color or shape is not enough to make the
load devices of different characteristics within the meaning
of the definition of this subclass. Discharge devices
containing different gases, or having different starting or
operating characteristics, or having a different number or
types of electrodes are considered to be of diverse types.
Load devices having different impedances are considered to be
diverse types.
(2) Note. Where a single lamp or a single discharge device
is the ultimate load device, and the system includes an
additional lamp and/or discharge device in the circuit which
is connected in the circuit so as to control and/or modify
the current and/or potential supplied to such single ultimate
load device, the patent is classified as a plural load device
system if (a) the controlling and/or modifying device is a
lamp, or (b) the controlling and/or modifying device is
limited in the claims to being a gas or vapor discharge
device. Conversely, such a system is not classified as a
plural load device system where the controlling and/or
modifying device is claimed broadly as a discharge device
even though it is disclosed as a gas or vapor discharge
device.
The controlling and/or modifying device may be connected in
the control circuit of the discharge device where the
ultimate load device is a discharge control discharge device,
and the same basis of classification is used as is set forth
above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 for an incandescent lamp filament and a discharge device
which are structurally combined in one envelope with the
filament connected in shunt relation with the discharge
electrodes.
67 for multiple filament lamps having structurally combined
therewith an electric circuit element such as a switch, the
filaments being of different resistance.
87 and subclass 88 and indented subclasses, for systems
provided with two or more load devices, of the same or
different types, one of which is maintained in nonoperating
condition until the first operated fails to operate properly,
the system being provided with means to automatically
substitute the nonoperated load device for the load device
which fails to operate properly.
162 and indented subclass, where there is a plurality of
load devices and a plurality of sources of current supply.
177 where one of the load devices is in the primary circuit
of the current supply transformer, and the other is in the
secondary circuit.
200 and indented subclasses, for systems provided with a
discharge device or rectifier which is not a diverse load
device in the supply circuit of the load device.
349 and indented subclasses and the subclasses referred to
in the notes to the definition of those subclasses for
systems provided with a discharge device which is not a
diverse load device in the discharge control circuit of the
discharge device load.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 7, where one of the load devices is a
consumable electrode discharge device.
Subclass:
179
This subclass is indented under subclass 178. Systems having
two or more different type load devices connected in
electrical series relation with respect to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
49 for devices which include an electric filament lamp and a
discharge device which are structurally combined into a
single unitary device, the filament and the discharge device
being connected in electrical series relation.
177 for systems provided with a load device in the secondary
circuit of he the supply transformer and a load device in the
primary circuit of the transformer.
185 and indented subclasses, for systems provided with a
plurality of similar type load devices connected in
electrical series relation.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 8, where one of the series connected
devices is a consumable electrode discharge device.
Subclass:
180
This subclass is indented under subclass 179. Systems
wherein at least two of the series connected load devices are
electric space discharge devices which are each of a
different type from that of the other load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36 for devices which include a plurality of discharge device
units and an electrical circuit which are all structurally
combined in a single unitary structure, the discharge device
units being connected in electrical series relation.
189 and indented subclass, for systems which include a
plurality of series connected electric discharge devices
which are of a similar type.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 8, where one of the series connected
discharge devices is a consumable electrode discharge
device.
Subclass:
181
This subclass is indented under subclass 180. Systems
wherein at least one of the series connected discharge
devices is of the type which conducts more current in one
direction of current flow between the principal discharge
electrodes than is conducted in the other direction of
current flow between the principal discharge electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
190 for systems provided with a plurality of series
connected asymmetrical discharge devices which are of similar
types.
Subclass:
182
This subclass is indented under subclass 178. Systems
wherein at least one of the load devices in the system is a
discharge device.
SEE OR SEARCH CLASS:
378, X-Ray or Gamma Ray Systems or Devices, subclass 92 for
circuits for plural X-ray sources.
Subclass:
183
This subclass is indented under subclass 182. Systems
wherein there are at least two discharge device loads which
are of different types.
SEE OR SEARCH THIS CLASS, SUBCLASS:
180 and indented subclass, where the diverse type discharge
devices are connected in electric series relation.
324 and indented subclass, and the subclasses referred to in
the notes to the definitions thereof for other plural
discharge device loads.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 7 and indented subclass, where one of
the discharge devices is a consumable electrode discharge
device.
Subclass:
184
This subclass is indented under the class definition.
Systems wherein each side of the supply circuit consists of
at least a pair of conductors, the conductors on one side of
the supply circuit being adapted to be connected to one pole
of the source of supply, the conductors on the other side of
the supply circuit being adapted to be connected to the
opposite pole of the source of supply, at least three load
devices being connected between these two pairs of
conductors, at least one conductor of each pair of conductors
on each side of the supply circuit having at least two load
devices connected thereto, each of these two load devices
being connected to different conductors of the pair of
conductors on the other side of the supply circuit, so that
by connecting one conductor on each side of the supply
circuit to the source of supply, a selected one of the load
devices may be supplied with current, for example: [figure]
Subclass:
185
This subclass is indented under the class definition.
Systems having two or more load devices connected in
electrical series relation with respect to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36 for devices having a plurality of discharge device units
and an electrical circuit element structurally combined in a
single unitary device, the discharge devices being connected
in electrical series relation.
49 for devices having a filament lamp and a discharge device
structurally combined in a single unitary structure, the lamp
and discharge device being connected in electrical series
relation.
66 for multiple filament lamps structurally combined with a
circuit element, such as a switch, the filaments being
adapted to be connected in electrical series relation.
96 and subclass 99 and indented subclass, for series
connected cathodes or heaters.
122 where an automatic shunt or cut-out means is provided to
open the circuit of, or to close a shunt about, the circuit
of at least one of the series connected load devices when the
load device fails to operate properly.
177 for systems provided with a load device in the secondary
of a supply transformer, and another load device in the
primary circuit of the supply transformer.
179 for the subject matter of this subclass where the series
connected load devices are of diverse types.
256 for systems under the definition of subclass 363,
wherein a transformer is connected in the supply circuit of
two or more nonseries connected load devices, the primaries
of the transformers being connected in electrical series
relation with respect to each other.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 8, for systems provided with a plurality
of series connected consumable discharge devices.
363, Electric Power Conversion Systems, 65 for systems
wherein a single current conversion is attained by plural
convertors which may be electronic tubes connected in
series.
Subclass:
186
This subclass is indented under subclass 185. Systems having
a periodic switch connected in the current supply circuit so
as to periodically interrupt or vary the flow of current to
at least one of the load devices.
(1) Note. The periodic switch may be connected in shunt to
a load device so as to periodically interrupt or vary the
flow of current to the load device by completing a shunt
circuit about the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
119 and indented subclasses, for systems having automatic
means to close a shunt circuit about a load device.
210 and indented subclasses, and the subclasses referred to
in the notes to the definitions thereof for other plural load
device systems with a periodic switch in the circuit.
Subclass:
187
This subclass is indented under subclass 185. Systems
provided with a condenser connected either in electrical
series relation or electrical shunt relation to at least one
of the series connected load devices and the source of supply
for the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
228 and indented subclasses and the notes to the definitions
thereof for other plural load device systems with a condenser
in the supply circuit.
Subclass:
188
This subclass is indented under subclass 187. Systems
wherein the condenser is connected in electrical shunt
relation with respect to at least one of the load devices and
the source of supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
232 for other plural load device systems having a condenser
connected in shunt to a load device.
241 and indented subclasses, for single load device systems
having a condenser connected in shunt to the load device.
Subclass:
189
This subclass is indented under subclass 185. Systems
wherein the series connected load devices are discharge
devices.
(1) Note. Where a single lamp or a single discharge device
is the ultimate load device, and the system includes an
additional lamp and/or discharge device in the circuit which
is connected in the circuit so as to control and/or modify
the current and/or potential supplied to such single ultimate
load device, the patent is classified as a plural load device
system, if (a) the controlling and/or modifying device is a
lamp, or (b) the controlling and/or modifying device is
limited in the claims to being a gas or vapor discharge
device. Conversely, such a system is not classified as a
plural load device system where the controlling and/or
modifying device is claimed broadly as a discharge device
even though it is disclosed as a gas or vapor discharge
device.
The controlling and/or modifying device may be connected in
the control circuit of the discharge device where the
ultimate load device is a discharge control discharge device,
and the same basis of classification is used as is set forth
above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36 for devices which include a plurality of discharge device
units and an electrical circuit element structurally combined
in a single unitary structure, the discharge devices being
connected in electrical series relation.
180 and indented subclass, for systems under the class
definition which include a plurality of series connected
diverse type discharge device loads.
187 and indented subclass, for systems under subclass 185
provided with a plurality of discharge device loads and
having a condenser connected in shunt to at least one of the
load devices.
324 and indented subclass, and the subclasses referred to in
the notes to those subclasses, for other plural discharge
device load systems under the class definition.
Subclass:
190
This subclass is indented under subclass 189. Systems
wherein the series connected load devices are of the type
which conduct more current in one direction of current flow
between the principal discharge electrodes than is conducted
in the other direction of current flow between the principal
discharge electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
181 for this subject matter where the series connected
asymmetrical discharge devices are of diverse types.
SEE OR SEARCH CLASS:
363, Electric Power Conversion Systems, 65 for systems
wherein a single current conversion is attained by plural
convertors which may be unidirectionally conductive
electronic tubes connected in series.
Subclass:
191
This subclass is indented under subclass 185. Systems
wherein the system includes means for changing the connection
of at least two of the load devices from electrical series
relation to electrical parallel relation with respect to each
other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
66 for multiple filament lamps structurally combined with
electric circuit means, such as an electric switch and having
the filaments connected to the circuit means so that the
filaments may be energized either in electrical series or
parallel relation.
192 for systems under subclass 185 having combined with the
series connected load devices, a load device connected in
parallel with respect to at least one of the series connected
load devices.
Subclass:
192
This subclass is indented under subclass 185. Systems having
a load device connected in electrical parallel relation with
at least one of the series connected load devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
191 for systems under subclass 185 having means to change
the series connection of at least one of the load devices to
a parallel connection.
Subclass:
193
This subclass is indented under subclass 185. Systems having
an electrical circuit maker and breaker connected in the
system for controlling the supply of current to at least one
of the series connected load devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64 and indented subclasses, for multiple filament lamps
structurally combined with an electric switch.
186 for series connected load device systems having a
periodic switch.
313 and indented subclasses and the subclasses referred to
in the notes to those subclasses, for other plural load
device systems provided with an electric switch.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses, for electric switches, per se.
Subclass:
194
This subclass is indented under the class definition.
Systems having a load device which is a discharge device
provided with a discharge control means, such as a grid
electrode, an electromagnet for influencing the space
discharge, or an auxiliary starting electrode, the discharge
device being either (1) supplied with a pulsating and/or
alternating current and/or (2) the cathode-anode circuit of
the discharge device being so connected in the system that a
pulsating and/or alternating current flows therein; the
system including means to apply current and/or potential to
the control means, the circuit controlling the application of
the control potential including phase shifting means, so that
the control current and/or potential may be applied to the
control means in time phase relation to the pulsating and/or
alternating current in the supply circuit and/or in the
cathode-anode of the load device.
(1) Note. Neither the current and/or potential applied to
the discharge device nor the control means need be a
pulsating and/or alternating current and/or potential. For
example, the load device may be supplied with discharge
current from a source of unidirectional current with the
system so arranged that a circuit connecting the
cathode-anode of the discharge device has a pulsating current
flowing therein, the control means being supplied with
unidirectional current, the system being provided with
circuit elements including phase shifting means responsive to
the pulsating current in the cathode-anode circuit to control
the time of application of the unidirectional current and or
potential to the control means.
(2) Note. When the current supply for the discharge device
is an alternating or pulsating current, and the discharge
device is provided with an auxiliary starting electrode which
is supplied with pulsating or alternating current which is
out of phase with the alternating current in the discharge
supply circuit, the patent is classified as a polyphase
supply system in subclass 137 and indented subclasses, note
especially subclasses 145 and 147. Where the system includes
means to supply the auxiliary starting electrode with
pulsating current from the supply circuit, and the auxiliary
electrode circuit includes phase shifting means to shift the
phase of the alternating current in the auxiliary electrode
circuit with respect to the current in the supply circuit,
the patent is classified in subclass 140 as a phase
multiplying system. Where the claims only recite a control
device for the discharge device, even though an auxiliary
starting electrode is disclosed, the patent is classified in
this subclass (194) or the indented subclasses.
(3) Note. Where the discharge device is supplied with
discharge current from a source of pulsating and/or
alternating current and the control means is supplied with a
pulsating and/or alternating current and/or potential, the
current and/or potential in the control circuit need not have
its phase shifted with respect to the supply current, but the
phase shifting means may only determine the time of
application of the control current and/or potential to the
control means with respect to the current wave of the supply
current.
(4) Note. Systems wherein the current and/or potential
supplied to the control means is merely varied in magnitude,
the magnitude of the control current and/or potential with
respect to the supply current for the load device determining
the time at which the control means becomes effective to
alter the operation of the discharge device are not included.
For such systems, see the subclasses under "SEARCH THIS
CLASS, SUBCLASS" below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
137 see note (2) above.
140 see note (2) above.
145 see note (2) above.
147 see note (2) above.
335 and indented subclass, and the subclasses specified in
the notes to the definitions of these subclasses, where the
discharge control means for the discharge device load device
is an auxiliary starting electrode, the system including
means to vary the magnitude of the current and/or potential
supplied to the auxiliary starting electrode,
341 and indented subclasses, and the subclasses specified in
the notes to the definition of those subclasses, where the
discharge device load device is provided with a plurality of
discharge control means, the system including means to vary
the magnitude of the control current and/or potential
supplied to at least one of the control means.
344 and indented subclasses, and the subclasses specified in
the notes to the definition of those subclasses where the
discharge device load device is provided with an
electromagnet for influencing the discharge, and the system
includes means to vary the magnitude of the current supplied
to the electromagnet.
349 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses for
miscellaneous systems under the class definition wherein the
load device is a discharge control discharge device and the
system includes means to vary the magnitude of the current
and/or potential supplied to the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 237, 300, and 320, for systems for controlling the
magnitude of the current or voltage in a single circuit by
means of a discharge device having a discharge control device
(e.g., grid), the discharge device circuit including means
for shifting the phase of the potential in the discharge
control device circuit with respect to the potential in the
output circuit.
363, Electric Power Conversion Systems, subclass 118 and the
subclasses mentioned in the notes thereto, for electronic
tube current conversion systems wherein the control of the
electronic tube includes phase control of potential applied
to the discharge control means. The systems in Class 363 are
very closely analogous to the systems in this and the
indented subclasses. For the line between Class 363 and this
class (315), see Lines With Other Classes and Within This
Class in the class definition of Class 363.
Subclass:
195
This subclass is indented under subclass 194. Systems,
wherein the system includes two or more discharge control
discharge device loads.
(1) Note. Where a single lamp or a single discharge device
is the ultimate load device, and the system includes an
additional lamp and/or discharge device in the circuit which
is connected in the circuit so as to control and/or modify
the current and/or potential supplied to such single ultimate
load device, the patent is classified as a plural load device
system, if (a) the controlling and/or modifying device is a
lamp, or (b) the controlling and/or modifying device is
limited in the claims to being a gas or vapor discharge
device. Conversely, such a system is not classified as a
plural load device system where the controlling and/or
modifying device is claimed broadly as a discharge device
even though it is disclosed as a gas or vapor discharge
device.
The controlling and/or modifying device may be connected in
the control circuit of the discharge device where the
ultimate load device is a discharge control discharge device,
and the same basis of classification is used as is set forth
above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
325 and the subclasses referred to in the notes to the
definition of that subclass for other systems having plural
discharge control discharge device loads.
Subclass:
196
This subclass is indented under subclass 195. Systems
wherein the discharge control discharge device loads are of
the type which conduct more current in one direction of
current flow between the cathode and anode electrodes than is
conducted in the other direction of current flow
therebetween, at least two of the discharge devices each
having its anode connected to the cathode of the other load
device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
251 for other systems provided with a plurality of inversely
parallel connected discharge control discharge device loads.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class, "Electronic
Tube Systems," in the class definition of Class 323.
Subclass:
197
This subclass is indented under subclass 196. Systems having
a discharge device provided with discharge control means
connected in the control circuit of the discharge control
discharge device loads.
SEE OR SEARCH THIS CLASS, SUBCLASS:
198 and 199, for other plural load device systems, wherein
there is a discharge control discharge device in the control
circuit of the discharge device load.
204 272, and 352, for other systems under the class
definition provided with a discharge control discharge device
in the control circuit; subclass 204 where the discharge
control means of the load device is an auxiliary starting
electrode, subclass 272 and indented subclass where the
discharge device load is supplied with alternating current,
and subclass 352 and indented subclass for miscellaneous
systems of this type.
Subclass:
198
This subclass is indented under subclass 195. Systems having
a discharge device provided with discharge control means
connected in the control circuit of the discharge control
discharge device load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
197 and see the notes to the definition thereof.
Subclass:
199
This subclass is indented under subclass 194. Systems having
an electric space discharge device provided with discharge
control means connected in the control circuit of the
discharge control discharge device load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
197 and see the notes to the definition thereof.
Subclass:
200
This subclass is indented under the class definition.
Systems provided with a discharge device or an electric
current rectifier connected either in electrical series
relation or electric shunt relation to the load device and
the source of current supply for the load device.
(1) Note. Patents claiming systems under the class
definition which only have two or more lamps or electric
space discharge devices limited in the claims to the gas or
vapor type which are included as load devices in this class
are not classified in this subclass or the indented
subclasses, even though one of the devices is disclosed and
claimed only as a means for controlling and/or modifying the
current flow to one of the devices which is the ultimate load
device. Such patents are classified in the other appropriate
subclasses in this class as a plural load device system.
This subclass and the indented subclasses include only
systems under the class definition wherein the system
includes a rectifier and or a discharge device of the type
which is not included as a load device in this class.
(2) Note. Where the only discharge device and/or rectifier
is in the discharge control circuit of a discharge control
discharge device load, the patent is not classified in this
or the indented subclasses, unless the discharge control
means is an auxiliary starting electrode, for which see
subclass 203 and indented subclass. For systems under the
class definition having a discharge device, a rectifier in
the discharge control circuit of a discharge control
discharge device load, see subclass 352 and indented subclass
and the subclasses specified in the notes to the definition
of those subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36 for a plurality of series connected discharge devices
combined with an electric circuit element, all of which are
structurally combined to form a unitary device.
46 for a discharge device and a filament which are
structurally combined to form a unitary device, the filament
being connected in electrical shunt to the discharge
electrodes.
49 for a discharge device and a filament which are
structurally combined to form a unitary device, the filament
being in electrical series with the discharge device.
101 for systems wherein the load device is a discharge
device provided with a thermionic cathode heated by the
passage of electric current, or an indirectly heated cathode,
the cathode or the cathode heater circuit having a discharge
device and/or an electric current rectifier connected either
in electrical series relation or electrical shunt relation
with respect to the cathode or cathode heater and the source
of supply.
171 for systems where there are a plurality of sources of
current supply, one of the supply circuits having a discharge
device or rectifier therein.
179 for systems having a plurality of diverse type load
devices which are connected in electrical series relation,
one of the load devices being a discharge device.
189 for systems where there are a plurality of series
connected discharge device loads.
324 and indented subclass and the subclasses referred to in
the notes to the definition of that subclass for systems
under the class definition which include a plurality of
discharge device loads.
352 see note (2) above.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 64, for consumable electrode discharge
device systems which include a space discharge device for
controlling the operation of the electrode feeding
mechanism.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291, for miscellaneous systems having one
or more discharge devices for controlling the magnitude of
the current and/or voltage in a single circuit.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for
miscellaneous circuits utilizing a discharge device to
control the flow of current or potential to a load device.
363, Electric Power Conversion Systems, 74 for rectifying or
derectifying systems with automatic voltage and/or current
magnitude control; subclasses 83, 94, and 99 for rectifying
or derectifying systems with line circuit control by means of
an electronic tube; and subclasses 111+ for rectifying or
derectifying systems wherein the convertor is an electronic
tube.
378, X-Ray or Gamma Ray Systems or Devices, subclass 104 for
X-ray tube power supplies with specific rectifier.
Subclass:
201
This subclass is indented under subclass 200. Systems having
two or more load devices in the system.
(1) Note. See note (1) to the definition of subclass 200 of
this class.
Subclass:
202
This subclass is indented under subclass 200. Systems
wherein the load device in the system is an electric space
discharge device which has two or more cathodes and/or two or
more anodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 and indented subclasses and the subclasses referred to
in the notes to the definition of these subclasses, for other
systems under the class definition provided with a plural
cathode and/or anode discharge device load.
Subclass:
203
This subclass is indented under subclass 202. Systems
wherein the discharge device is provided with at least one
principal anode and at least one principal cathode and an
auxiliary discharge electrode, the discharge device and/or
the rectifier being included in the circuit which supplies
current or potential to the auxiliary electrode.
(1) Note. Where the system includes a plurality of
discharge devices, one of which is connected in the control
circuit of the discharge device which is the load in the
circuit, the patent is classified as a plural load device
system in the subclasses above where the discharge device in
the control circuit is claimed as a discharge device whose
operation depends upon gas or vapor ionization even though
the system is claimed as only having one ultimate load
device. Where the controlling discharge device is claimed
merely as a discharge device even though it is disclosed as a
gaseous ionization discharge device, the system is not
considered to be a plural load device system for the purpose
of classification.
SEE OR SEARCH THIS CLASS, SUBCLASS:
335 and indented subclass, and the subclasses referred to in
the notes to the definition of these subclasses, for other
systems provided with a discharge device load having an
auxiliary discharge electrode.
352 and indented subclass, for other systems under the class
definition provided with a discharge control discharge load
and having an electric discharge device in the control
circuit, where the discharge control device is other than an
auxiliary starting electrode.
Subclass:
204
This subclass is indented under subclass 203. Systems
wherein the discharge device which is connected in the
auxiliary electrode circuit is provided with discharge
control means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
197 198, and 199, for systems under the class definition
wherein the load device is provided with discharge control
means, which may be an auxiliary starting electrode, and the
control circuit includes a discharge control discharge device
and means to shift the phase of the pulsating and/or
alternating current or potential in the control circuit with
respect to the pulsating and/or alternating current in the
cathode-anode circuit.
208 for other systems under subclass 200 provided with a
discharge control discharge device in the supply circuit of
the load device.
Subclass:
205
This subclass is indented under subclass 200. Systems
provided with either (1) two or more discharge devices or
rectifiers, or (2) a rectifier and a discharge device in the
supply circuit of the load device.
(1) Note. Where the system includes a plurality of
discharge devices, the output of one controlling only the
electric discharge control means, such as the grid, of
another discharge device (cascade connected) and the load
device is connected in the circuit with the cathode-anode
circuit of only one of the space discharge devices, the
patent is excluded from this subclass and will be found in
one of the other subclasses under subclass 200.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291, for miscellaneous systems having a
plurality of discharge devices for controlling the magnitude
of the current and/or voltage in a single circuit.
Subclass:
206
This subclass is indented under subclass 200. Systems
provided with a transformer connected between the source of
supply and the load device for supplying electric current or
potential to the load device and having this discharge device
and/or the rectifier connected in the primary circuit of the
transformer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
276 and indented subclasses and the subclasses specified in
the notes to those subclasses, for other systems under the
class definition provided with a transformer in the supply
circuit of the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291, for miscellaneous systems having one
or more discharge devices in the primary circuit of a
transformer for controlling the magnitude of the current
and/or voltage in a single circuit.
363, Electric Power Conversion Systems, subclass 83, 94, and
99 for rectifying or derectifying systems with line circuit
control by means of an electronic tube.
Subclass:
207
This subclass is indented under subclass 200. Systems having
the discharge device or rectifier connected in electrical
shunt relation to the source of supply and the load device.
Subclass:
208
This subclass is indented under subclass 200. Systems having
a discharge device which is provided with discharge control
means such as a grid electrode, connected in the supply
circuit of the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
204 for this subject matter where the discharge control
discharge device is in the auxiliary electrode circuit.
352 and indented subclass and the subclasses specified in
the notes to the definition of those subclasses for systems
under the class definition where the load device is a
discharge control discharge device, and the control circuit
includes a discharge device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 and the subclasses specified in the
notes to the definition of those subclasses, for
miscellaneous systems having a discharge device which is
provided with a discharge control device for controlling the
magnitude of the current and/or voltage in a single circuit.
363, Electric Power Conversion Systems, 111 and the
subclasses mentioned in the notes thereto, for current
conversion systems wherein either the convertor or a control
device comprises an electronic tube having discharge control
means (e.g., grid).
Subclass:
209
This subclass is indented under the class definition.
Systems having a periodic switch connected in the current
supply circuit for the load device so as to periodically
interrupt or vary the flow of current to the load device.
(1) Note. The periodic switch may be connected in shunt to
the load device so as to periodically interrupt or vary the
flow of current to the load device by completing a shunt
circuit about the load device.
(2) Note. Some of the systems in this and the indented
subclasses are ignition systems for supplying electrical
energy to spark gaps of the spark plug type. For the line
between this class and Class 123, Internal-Combustion
Engines, subclass 146.5, Sparkers, see the notes to the class
definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72 for electric lamps having a periodic switch structurally
combined therewith so as to form a unitary device.
172 where there are two sources of current supply for the
load device, one of the supply circuits including a periodic
switch.
186 where there are a plurality of load devices connected in
series relation and the system includes a periodic switch.
246 and indented subclasses, for systems having no periodic
switch wherein alternating or pulsating current is supplied
to the load device. Note especially subclass 287 for systems
where the source of supply may be direct current and a
voltage regulator which periodically increases and decreases
the current supplied to the load device is included in the
supply system.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, see Note (2) above.
200, Electricity: Circuit Makers and Breakers, 19.01 for
periodic electric switches.
307, Electrical Transmission or Interconnection Systems, 96
for circuit interrupting regulators.
322, Electricity: Single Generator Systems, 69, for periodic
interruption of generator field circuit and subclass 94 for
interruption of generator armature circuit.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 87 for periodic electromagnetically
operated switches.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 51 for periodically operated
electrothermally actuated switches and subclasses 302+ for
periodically operated thermal switches.
361, Electricity: Electrical Systems and Devices, 1 for
circuit interruption systems utilized for safety purposes.
363, Electric Power Conversion Systems, 106 and subclass 177
for conversion systems wherein the convertor comprises a
periodic switch.
Subclass:
210
This subclass is indented under subclass 209. Systems having
two or more load devices in the system.
SEE OR SEARCH THIS CLASS, SUBCLASS:
312 and indented subclasses, and the subclasses specified in
the notes to these subclasses, for other plural load device
systems under the class definition.
Subclass:
211
This subclass is indented under subclass 210. Systems
wherein (1) two or more periodic switches are provided in the
circuit, or (2) the periodic switch is a multiple circuit
multiplecontact switch, the supply circuit of each of two or
more of the load devices including one of the periodic
switches or one of the contacts of the multiple contact
switch, such switch means being arranged to open and close
the circuits in sequence so that current is supplied to the
load devices in time sequence.
(1) Note. Some of the patents in this and the indented
subclasses are ignition systems for supplying electrical
energy to a plurality of spark gaps (plugs) in timed
sequence. For the line between this class and Class 123,
Internal Combustion Engines, subclass 146.5, Sparkers, see
the notes to the main definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
226 for single load device systems under subclass 209
provided with a plurality of periodic switches or a multiple
contact periodic switch in the supply circuit of the load
device.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, see note (1) above.
200, Electricity: Circuit Makers and Breakers, 19.06 and
indented subclasses for multiple contact periodic switches.
Subclass:
212
This subclass is indented under subclass 211. Systems
provided with a transformer connected between the source of
supply and at least one of the load devices for supplying
electric current and/or potential to the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
219 and indented subclasses, for single load device systems
under subclass 209 provided with a transformer in the supply
circuit of the load device and having a periodic switch in
the primary circuit of the transformer.
254 and indented subclasses, for other plural load device
systems provided with a transformer in the supply circuit of
at least one load device.
276 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses for other
systems provided with a transformer in the supply circuit of
the load device.
Subclass:
213
This subclass is indented under subclass 212. Systems
wherein the system includes a plurality of transformers, the
secondaries of each of the transformers being connected to
one or more of the load devices, the primaries of the
transformers being connected to the periodic distributing
switch means so that the primary circuits of the transformers
are energized in timed sequence with respect to each other,
thereby energizing the load devices in timed sequence with
respect to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
220 for single load device systems under subclass 209
provided with a plurality of transformers in the supply
circuit of a load device, a periodic switch being included in
the primary circuit of at least one transformer.
255 and indented subclass, for other plural load device
plural transformer systems, each transformer secondary
including a load device.
Subclass:
214
This subclass is indented under subclass 212. Systems having
a periodic switch (in addition to the distributor switch
means) in the primary circuit of the transformer so as to
periodically interrupt the primary circuit, the distributor
type periodic switch means being in the secondary circuit of
the transformer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
213 for plural load device systems under subclass 212, where
a distribution type periodic switch is included in the
primary circuits of the transformer.
215 for additional periodic switches in circuits having no
transformer.
222 for single load device systems under subclass 209
wherein there is a transformer in the supply circuit of the
load device, and the primary and secondary circuits are
periodically interrupted by periodic switch means.
Subclass:
215
This subclass is indented under subclass 211. Systems having
a periodic switch (in addition to the distributor switch
means) connected in series relation with the distributing
type periodic switch means so that the supply circuit for at
least one load device is periodically interrupted by both.
(1) Note. The second periodic switch need not operate in
timed relation to the operation of the distributor type
periodic switch means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
214 where the distributing switch means is connected to the
secondary of a transformer the primary circuit of the
transformer including a periodic switch.
Subclass:
216
This subclass is indented under subclass 211. Systems in
which the distributor type periodic switch means comprises
two or more switches each of which periodically interrupts
the supply to one or more of the load devices, the switches
having electrical operating means (such as an electromagnet
or electrically heated thermostat) and means causing the
electrical operating means to operate the switches in time
sequence with respect to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
214 and 215, for such systems having an additional periodic
switch to control energy delivered either to or from the
distributor switch means.
226 for single load device systems under subclass 209 having
a plurality of periodic switches or a multiple contact
periodic switch in the supply circuit of the load device.
Subclass:
217
This subclass is indented under subclass 210. Systems
wherein the periodic switch is connected in the circuit so
that it may be selectively connected in the supply circuit of
either of two or more of the load devices.
Subclass:
218
This subclass is indented under subclass 209. Systems
wherein a magneto-electric generator is utilized as the
source of supply for the load device.
(1) Note. This subclass includes only systems under
subclass 209 wherein the source of supply is limited by
claimed subject matter to being a magneto- electric
generator.
Subclass:
219
This subclass is indented under subclass 209. Systems
provided with a transformer connected between the source of
supply and the load device for supplying electric current or
potential to the load device and having the periodic switch
connected in the primary circuit of the transformer so as to
periodically interrupt the primary circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
212 and indented subclasses, for periodic switch controlled
systems having plural loads and a transformer in the supply
circuit.
276 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses for other
systems under the class definition which have a transformer
connected in the supply circuit of the load device.
Subclass:
220
This subclass is indented under subclass 219. Systems having
two or more transformers connected in the supply circuit of
the load device.
(1) Note. The transformers may be connected in the supply
circuit so that the primary circuit of one transformer is
connected to the secondary circuit of another transformer, or
may have their primaries and/or secondaries connected in
electrical series or shunt relation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
277 for other systems provided with a plurality of
transformers connected in the supply circuit of a load
device.
Subclass:
221
This subclass is indented under subclass 219. Systems having
the primary circuit of the transformer connected to the
secondary circuit by current conductive means.
(1) Note. The current conductive means may be an
inductance, a condenser, or a conductor.
Subclass:
222
This subclass is indented under subclass 219. Systems
wherein the circuits which are connected to two or more of
the transformer coils are periodically interrupted.
(1) Note. The circuits which are periodically interrupted
may be the primary and secondary circuits, or may be two or
more different primary or secondary circuits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
213 for plural load device systems provided with a
transformer in the supply circuit of each of the load
devices, the primary circuits of the plural transformers
being connected to a distributor type periodic switching
means so that the primary circuits are closed in timed
sequence with respect to each other.
214 for this subject matter where there are a plurality of
load devices in the system and a transformer in the supply
circuit, a periodic switch being connected in the primary
circuit and a distributor type periodic switch means being
connected in the secondary circuit.
226 for systems under subclass 209 which are provided with a
plurality of periodic switches or a multiple contact periodic
switch in the supply circuit of the load device.
Subclass:
223
This subclass is indented under subclass 219. Systems having
a condenser or an inductance connected in the primary circuit
of the transformer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses, for other
systems provided with a condenser in the supply circuit of
the load device.
289 and indented subclass and the subclasses specified in
the notes to those subclasses, for other systems under the
class definition provided with an inductance connected in the
supply circuit of the load device.
Subclass:
224
This subclass is indented under subclass 209. Systems having
an impedance or a current or voltage regulator connected in
the supply circuit of the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
223 for this subject matter where there is a transformer
connected in the supply circuit of the load device, the
primary circuit including a periodic switch and a condenser
or inductance.
291 and indented subclasses, and the subclasses specified in
the notes to the definition of those subclasses, for other
systems under the class definition provided with a current or
voltage regulator in the supply circuit of the load device.
Subclass:
225
This subclass is indented under subclass 209. Systems having
means provided for rendering the periodic switch inoperative
to interrupt the circuit when it is so desired.
(1) Note. The means provided may be means to hold the
contacts of the periodic switch in circuit closing position
or to close a shunt circuit about the switch.
Subclass:
226
This subclass is indented under subclass 209. Systems
wherein (1) the periodic switch is provided with two or more
pairs of circuit interrupting contacts, or (2) two or more
periodic switches are provided in the circuit, the circuit
being intermittently interrupted at two or more different
places.
SEE OR SEARCH THIS CLASS, SUBCLASS:
216 for this subject matter where there are a plurality of
load devices in the system and a plurality of electrically
operated periodic switches are used to distribute the current
to the load devices.
222 for this subject matter where there is a transformer in
the supply circuit of the load device and there are periodic
switch means to interrupt the primary circuit and the
secondary circuit of the transformer.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 19.06, and
indented subclasses, for multiple contact periodic switches,
per se.
Subclass:
227
This subclass is indented under the class definition.
Systems provided with a condenser connected either in
electrical series relation or electrical shunt relation to
the load device and the source of current supply for the load
device.
(1) Note. This subclass includes systems having a condenser
and discharge device, the condenser being charged by a
suitable source of potential until the potential is
sufficient to ionize the discharge space of the discharge
device, when the condenser is discharged through the
discharge device. Such systems are included whether the
system is stated to be for the production of oscillations or
merely for the production of the space discharge (light
generation). In some of the systems, the condenser is
connected so as to form, with the other circuit elements, an
oscillatory circuit. Such oscillatory circuit systems are
included even though it is not clear from the patent that the
discharge gas is ionized with each oscillatory impulse of
current. Where it is clear that the oscillatory circuit is
merely fed with current through the discharge device, and the
oscillatory current does not ionize the discharge space but
continues to oscillate in a closed circuit which does not
include the discharge device, the oscillatory circuit is
considered as a load device and the patent is excluded from
this class, and will be found in Class 331, Oscillators,
particularly subclasses 126+ for electrical oscillator
systems of the gaseous space discharge device type utilizing
a capacitor as one of the frequency determining elements of
the system, indented subclass 128 providing for systems
wherein the gaseous space discharge device provides for
shock-excitation of an LC circuit, subclasses 143+ for
relaxation oscillator utilizing space discharge devices and
wherein an RC time constant network determines the period or
frequency of the generated oscillation and subclasses 165+
for oscillators in general comprising a shock-excited
resonant circuit or some related class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44 and 45, for devices which include a discharge device, an
inductance and a condenser which are structurally combined in
a unitary device.
58 for discharge devices having structurally combined
therewith a condenser.
71 for lamps having structurally combined therewith a
condenser.
173 for systems which include two sources of current supply
for the load device, one of the supply circuits including a
condenser.
187 and indented subclass, for systems wherein a plurality
of load devices are connected in electrical series relation,
a condenser being connected in the circuit.
223 for systems which include a transformer in the supply
circuit of the load device, a periodic switch and a condenser
being included in the primary circuit of the supply
transformer.
224 for systems under the class definition which include a
condenser and a periodic switch in the supply circuit of the
load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 364 and the subclasses specified in the notes to
the definition of that subclass, for miscellaneous condenser
systems and for miscellaneous systems having a condenser for
controlling the magnitude of the current and/or voltage in a
single circuit.
378, X-Ray or Gamma Ray Systems or Devices, subclass 103 for
X-ray tube systems wherein the X-ray tube is designed to be
energized by the discharge from a charged condenser.
Subclass:
228
This subclass is indented under subclass 227. Systems having
two or more load devices in the system.
(1) Note. Where a single lamp or a single discharge device
is the ultimate load device, and the system includes an
additional lamp and/or discharge device in the circuit which
is connected in the circuit so as to control and/or modify
the current and/or potential supplied to such single ultimate
load device, the patent is classified as a plural load device
system, if (a) the controlling and/or modifying device is a
lamp, or (b) the controlling and/or modifying device is
limited in the claims to being a gas or vapor discharge
device. Conversely, such a system is not classified as a
plural load device system where the controlling and/or
modifying device is claimed broadly as a discharge device,
even though it is disclosed as a gas or vapor discharge
device.
The controlling and/or modifying device may be connected in
the control circuit of the discharge device where the
ultimate load device is a discharge control discharge device,
and the same basis of classification is used as is set forth
above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
187 for this subject matter where the plurality of load
devices are connected in electrical series relation.
312 and indented subclasses, and the subclasses referred to
in the notes to the definition thereof for other plural load
device systems.
SEE OR SEARCH CLASS:
331, Oscillators, 126 for gaseous space discharge device
type oscillators which may employ plural gaseous discharge
devices, especially indented subclass 130 for relaxation
oscillators utilizing plural gaseous devices.
378, X-Ray or Gamma Ray Systems or Devices, 91 for X- ray
tube systems wherein the X-ray tube is designed to be
energized by the discharge from a charge condenser.
Subclass:
229
This subclass is indented under subclass 228. Systems
wherein the load devices are discharge devices of the type
which conduct more current in one direction of current flow
between the cathode and anode electrodes of the discharge
device than is conducted in the other direction of current
flow between the cathode and anode electrodes, and having the
condenser connected in a circuit between similar principal
discharge electrodes (such as between the anode or between
the cathodes of two of the electric discharge devices).
SEE OR SEARCH THIS CLASS, SUBCLASS:
235 for systems wherein the load device is a plural cathode
and/or anode load device and the system includes a condenser
connected either between the anodes or between the cathodes.
Subclass:
230
This subclass is indented under subclass 228. Systems
wherein the load devices are discharge devices of the type
having two or more principal electrodes and a discharge
controlling means, and the system includes means for
controlling the electric discharge device by applying
electric current or potential to the control means.
(1) Note. For other systems under subclass 227 wherein the
load device is a device having discharge control means,
search this class, subclass 234, where the control means is
an auxiliary starting electrode, and subclass 237 and
indented subclasses for other such systems.
SEE OR SEARCH THIS CLASS, SUBCLASS:
229 for this subject matter where the discharge devices are
of the asymmetrical type and a condenser is connected between
either the anodes or the cathodes of such asymmetrical load
devices.
234 see the note above.
237 see the note above.
Subclass:
231
This subclass is indented under subclass 228. Systems
wherein at least two load devices are each connected in
electrical series relation with a condenser, each of the
series connected load devices and condensers being connected
in electrical shunt relation to the other series connected
load device and condenser.
SEE OR SEARCH THIS CLASS, SUBCLASS:
187 and indented subclass, where the load devices are in
series relation with each other.
Subclass:
232
This subclass is indented under subclass 228. Systems
wherein the condenser is connected in electrical shunt
relation with respect to at least one of the load devices and
the source of supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
188 for this subject matter where the load devices are
connected in electrical series relation with respect to each
other.
241 for single load device systems under subclass 227 having
a condenser in shunt to the load device.
Subclass:
233
This subclass is indented under subclass 227. Systems
wherein the load device in the system is a discharge device
which has two or more cathodes and/or two or more anodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
334 and indented subclasses and the subclasses specified in
the notes to the definitions of these subclasses, for other
systems provided with a plural cathode and/or anode load
device.
Subclass:
234
This subclass is indented under subclass 233. Systems
wherein the electric discharge device is provided with at
least one principal anode and at least one principal cathode
and an auxiliary discharge electrode, a condenser being
included in the circuit which supplies current or potential
to the auxiliary discharge electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
335 and indented subclass, and the subclasses specified in
the notes to the definitions of those subclasses, for other
systems having an auxiliary starting electrode discharge
device load.
Subclass:
235
This subclass is indented under subclass 223. Systems
wherein the condenser is connected in a circuit between two
or more similar principal electrodes (such as between two
anodes or between two cathodes).
SEE OR SEARCH THIS CLASS, SUBCLASS:
229 for plural discharge device loads under subclass 227
having a condenser connected between the anodes or between
cathodes of at least two load devices.
Subclass:
236
This subclass is indented under subclass 227. Systems
wherein the load device is a discharge device and an
electromagnet is placed adjacent to the interelectrode
discharge space of the discharge device so that the space
discharge is influenced by the magnetic flux.
SEE OR SEARCH THIS CLASS, SUBCLASS:
344 and indented subclasses and the subclasses specified in
the notes to the definitions of those subclasses, for other
systems provided with an electromagnet for influencing the
discharge in a discharge device load.
SEE OR SEARCH CLASS:
376, Induced Nuclear Reactions: Processes, Systems, and
Elements, 100 for the use of magnetic field or flux in
plasma heating and containment.
Subclass:
237
This subclass is indented under subclass 227. Systems
wherein the load device is an electric discharge device
provided with a discharge controlling means, and the system
includes means for controlling the electric discharge by
applying an electric current and/or potential to the control
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
234 for systems where the discharge control means for the
discharge device is an auxiliary starting electrode having a
condenser connected in its circuit.
236 for systems where the discharge controlling means is an
electromagnet for influencing the electric discharge.
349 and indented subclasses and the subclasses specified in
the notes to the definitions of those subclasses for other
systems under the class definition having a discharge control
discharge device load.
Subclass:
238
This subclass is indented under subclass 237. Systems having
(in addition to a condenser in the supply circuit) a
condenser connected in a circuit which includes the control
electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
234 for this subject matter where the discharge control
means is an auxiliary starting electrode and the condenser is
connected in the auxiliary starting electrode circuit.
355 and indented subclass and the subclasses referred to in
the notes to the definition of those subclasses, for other
systems provided with a condenser in the control circuit of
the discharge control discharge device load.
Subclass:
239
This subclass is indented under subclass 227. Systems
provided with a transformer, one of the windings of the
transformer being in the circuit which includes both the
condenser and the load device.
(1) Note. Where the load device is connected to the source
of supply by means of a transformer, the load device being
connected to the secondary of this transformer and there is
no condenser connected in the circuit, other than in the
primary circuit of the supply transformer, the patent is
excluded from this subclass and will be found in the
subclasses below, the primary circuit being considered only a
source of pulsating or A. C. potential for the secondary
circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
223 for systems which include a transformer in the supply
circuit of the load device, the primary circuit of the
transformer including a periodic switch and a condenser.
276 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses, for other
systems under the class definition having a transformer in
the supply circuit of the load device.
Subclass:
240
This subclass is indented under subclass 227. Systems
provided with a switch which is connected to the circuit
which includes the condenser so that the condenser may be
connected in the system in different ways or disconnected
from the system.
(1) Note. The switch may be connected in the system so that
(1) the condenser may be disconnected from the load device
during the condenser charging period and then connected to
the load device to discharge to the load device, or (2) the
condenser may be included or excluded from the system, or (3)
the condenser may be placed either in electrical series or
shunt relation with respect to the load device, or (4) the
circuit connections of the condenser may be altered in any
desired manner.
Subclass:
241
This subclass is indented under subclass 227. Systems
wherein the condenser is connected in electrical shunt
relation with respect to the load device and the source of
supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
188 for this subject matter where there are a plurality of
series connected load devices, and a condenser is connected
in shunt relation to at least one of the load devices.
232 for this subject matter where there are a plurality of
load devices and a condenser is connected in shunt relation
to at least one of the load devices.
236 for this subject matter where there is electromagnetic
means for influencing the discharge in a discharge load.
237 and indented subclass, for this subject matter where the
load device is a discharge control discharge device.
Subclass:
242
This subclass is indented under subclass 241. Systems having
an inductance connected in the circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44 for discharge control discharge devices which have
combined therewith an inductance and a condenser, all
structurally combined in a single unitary device, the
condenser and the inductance being connected between the
discharge control electrode and another electrode of the
discharge device.
53 for discharge devices which have combined therewith an
inductance and an impedance, all structurally combined in a
single unitary device.
244 for other systems under subclass 227 having an
inductance in the circuit.
289 and indented subclass, and the subclasses specified in
the notes to the definition of those subclasses, for other
systems under the class definition provided with an
inductance in the circuit.
Subclass:
243
This subclass is indented under subclass 242. Systems having
an inductance connected in the current supply circuit in
electrical series relation with the source of supply and the
load device.
(1) Note. The shunt circuit which includes the condenser
may be connected between the source of supply and the
inductance or between the inductance and the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
244 for other systems under subclass 227 which include an
inductance in the circuit.
Subclass:
244
This subclass is indented under subclass 227. Systems having
an inductance in addition to the condenser.
SEE OR SEARCH THIS CLASS, SUBCLASS:
53 for devices which include a lamp or discharge device, a
condenser, and an inductance, all structurally combined to
form a unitary structure.
242 and indented subclass, for this subject matter where the
condenser is connected in shunt relation to the load device.
289 and indented subclass and the subclasses referred to in
the notes to the definition of those subclasses, for other
systems under the class definition provided with an
inductance.
Subclass:
245
This subclass is indented under subclass 227. Systems
provided with a resistance in a circuit which includes the
condenser.
(1) Note. The resistance may be (1) in electrical series
relation with the source of supply and the condenser so that
the charging current for the condenser flows through the
condenser, or (2) in electrical series relation with the
condenser and the load device so that the condenser
discharges its current through the resistance and the load
device, or (3) in electrical shunt relation to the condenser
so that there is a flow of current through the resistance
during the charging and/or discharge periods of the
condenser.
Subclass:
246
This subclass is indented under the class definition.
Systems wherein the load devices in the system is supplied
with either pulsating or alternating current or potential
(but not both).
SEE OR SEARCH THIS CLASS, SUBCLASS:
57 for discharge devices which are structurally combined
with a transformer so as to form a unitary device.
70 for load devices other than discharge devices which are
structurally combined with a transformer so as to form a
unitary device.
72 for load devices having combined therewith a periodic
switch, the switch and load device being structurally
combined so as to form a unitary device and the periodic
switch periodically interrupting the current supplied to the
load device.
97 and subclass 105 and the indented subclass, for systems
under the class definition wherein the load device is a
discharge device provided with either a thermionic cathode
heated by the passage of electric current or an indirectly
treated cathode, the cathode or the cathode heater being
supplied by a source of pulsating and/or alternating
current.
105 see the reference to subclass 97, above.
137 and indented subclasses, for this subject matter where
the system is a polyphase alternating current system.
156 where the system includes a source of pulsating and/or
alternating current supply for the load device, a discharge
device and/or rectifier being connected in the supply
circuit, the discharge device or rectifier being controlled
by a radiant energy sensitive device (photocell).
171 where the system includes a plurality of sources of
current supply for the load device, one of the sources of
current supply being a pulsating and/or alternating source
and having a discharge device or rectifier in the supply
circuit to the load device.
172 where the system includes a plurality of sources of
current supply for the load device, one of the supply
circuits including a periodic switch for periodically
interrupting the supply of current to the load device.
174 where there are a plurality of diverse type pulsating
and/or alternating current supplies for the load device, or
both alternating and pulsating current supplies.
177 for this subject matter where there is a transformer in
the power supply circuit, there being a load device in the
primary circuit of the transformer and another load device in
the secondary circuit.
186 for systems which include a plurality of series
connected load devices, the supply circuit for the load
devices including a periodic switch to periodically interrupt
the supply of current.
194 for this subject matter where the load device is a
discharge control discharge device, and phase shifting means
are used to regulate the current and/or potential supplied to
the discharge control means.
200 where the system includes a pulsating and/or alternating
current supply source for the load device, the supply circuit
including a rectifier and/or discharge device.
209 and indented subclasses, for systems which include a
periodic switch in the supply circuit of the load device for
periodically interrupting the supply of current to the load
device.
227 and indented subclasses, for systems under the class
definition wherein a condenser is included in the load device
circuit so that the load device is energized periodically by
the current discharged from the condenser.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses, for systems for supplying
pulsating and/or alternating current to consumable electrode
discharge devices, note especially subclass 31 and 32.
378, X-Ray or Gamma Ray Systems or Devices, subclass 106 and
107 for X-ray tube power supplies having pulse or A. C.
output.
Subclass:
247
This subclass is indented under subclass 246. Systems having
combined therewith means designed to alter the power factor
of the system.
(1) Note. To be classified in this subclass, there must be
included in the system some device which has no function
other than to alter the power factor of the system. Systems
under the definition of subclass 246 having the circuit
elements designed to give a desired power factor are not
included in this subclass but are in the subclasses below.
For example, for systems under the definition of subclass
246, having a transformer in the circuit supplying power to
the load device, the transformer being designed to give a
particular power factor, search subclass 276 and indented
subclasses below.
Subclass:
248
This subclass is indented under subclass 246. Systems
wherein the load device in the system is a discharge device
of the type which has an envelope (such as a glass bulb),
containing an atmosphere of gas or vapor, the system
including a magnetic coil mounted in inductive relation to
the confined gas or vapor in the envelope and a generator of
high frequency current connected to the magnetic coil so that
the gas or vapor may be subjected to a high frequency field
to ionize the gas or vapor within the envelope.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 153, especially
indented subclass 161, for the structure of discharge
devices, per se, which have combined therewith a magnetic
field producing means.
Subclass:
249
This subclass is indented under subclass 246. Systems
wherein the load device in the system is a discharge device
having the electrodes formed of conductive rods or wires
which are arranged in physical parallel relation with respect
to each other and having the source of supply designed to
impress voltage waves upon the electrode system so that an
electric discharge is established between the electrodes at
the antinodes of the potential wave, the system being
provided with means to cause the antinodes of potential, and
therefore the electric discharge, to traverse the electrodes
along their length.
(1) Note. This type of system is used for developing a
scanning ray for television purposes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
345 for systems under the class definition wherein the
discharge device is provided with parallel mounted rod or
wire like electrodes, and an electromagnet is used to cause
the discharge to traverse the electrodes along their length.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, appropriate
subclasses for discharge device structures, per se. See
subclass 325 for discharge devices which involve only two
electrodes. See subclasses 306+ and the subclasses specified
in the Notes thereto for discharge devices which have three
or more electrodes.
348, Television, 800 for television systems using such
discharge devices.
Subclass:
250
This subclass is indented under subclass 246. Systems having
two or more load devices in the system.
(1) Note. Where a single lamp or a single discharge device
is the ultimate load device, and the system includes an
additional lamp and/or discharge device in the circuit which
is connected in the circuit so as to control and/or modify
the current and/or potential supplied to such single ultimate
load device, the patent is classified as a plural load device
system, if (a) the controlling and/or modifying device is a
lamp, or (b) the controlling and/or modifying device is
limited in the claims to being a gas or vapor discharge
device. Conversely, such a system is not classified as a
plural load device system where the controlling and/or
modifying device is claimed broadly as a discharge device
even though it is disclosed as a gas or vapor discharge
device.
The controlling and/or modifying device may be connected in
the control circuit of the discharge device where the
ultimate load device is a discharge control discharge device,
and the same basis of classification is used as is set forth
above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
97 for systems provided with a plurality of load devices,
the load devices having thermionic cathodes heated by the
passage of electric current or indirectly heated cathodes,
the cathode or cathode heater circuits being supplied with
pulsating or alternating current.
137 for this subject matter where the source of supply for
the load devices is polyphase alternating current.
177 for this subject matter where there is a transformer in
the supply circuit, a load device being connected in the
primary circuit of the transformer and another load device
being connected in the secondary circuit of the transformer.
186 for systems which include a plurality of series
connected load devices, the supply circuit including a
periodic switch to periodically interrupt the supply of
current to at least one of the load devices.
195 for this subject matter where the load devices are
discharge control discharge device load devices, and the
system includes means to shift the phase of the current
and/or potential supplied to the control means with respect
to the current in the anode-cathode circuit.
201 for plural load device systems wherein the source of
supply is a source of alternating or pulsating current, and a
rectifier and/or an electric space discharge device is
connected in the supply circuit of at least one of the load
devices.
228 and indented subclasses, for plural load device systems
wherein a condenser is included in the circuit of at least
one of the load devices so that the load device is
periodically energized by the current discharged from the
condenser.
Subclass:
251
This subclass is indented under subclass 250. Systems
wherein the load devices are discharge devices of the type
which conduct more current in one direction of current flow
between the cathode and anode electrodes of the discharge
device than is conducted in the other direction of current
flow between the cathode and anode electrodes, and at least
two of the discharge devices each have its anode connected to
the cathode of the other load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
196 and indented subclass, for this subject matter where the
load devices are discharge control discharge device load
devices and the system includes means to shift the phase of
the current and/or potential applied to the discharge control
means with respect to the current in the cathode-anode
circuit of the discharge devices.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class, "Electronic
Tube Systems," in the class definition of Class 323.
Subclass:
252
This subclass is indented under subclass 250. Systems
wherein the load devices are discharge devices of the type
having two or more principal electrodes and a discharge
controlling means, and the system includes means for
controlling the electric discharge device by applying
electric current or potential to the control means.
(1) Note. For other systems under subclass 246 wherein a
discharge device load is provided with discharge controlling
means, search this class, subclass 261 and indented
subclasses where the discharge controlling means is an
auxiliary starting electrode, subclass 267 where the
controlling means is an electromagnet, and subclass 268 and
indented subclasses, for other miscellaneous discharge
control discharge device systems.
SEE OR SEARCH THIS CLASS, SUBCLASS:
195 for this subject matter where the system includes means
to shift the phase of the discharge control current and/or
potential with respect to the current in the cathode-anode
circuit of the load devices.
251 for this subject matter where the discharge devices are
inverse parallel connected asymmetrical discharge devices.
261 see (1) Note. above.
267 see (1) Note. above.
268 see (1) Note. above.
325 and the subclasses specified in the notes to the
definition thereof for other plural discharge control
discharge device loads.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class in the class
definition of Class 323.
363, Electric Power Conversion Systems, subclass 116 and
121+ for current conversion systems having an electronic tube
convertor provided with discharge control means; subclasses
83, 94, and 99 for current conversion systems having an
electronic tube line circuit control means provided with
discharge control means. The systems in Class 363 are
closely analogous to those in this subclass. See Lines With
Other Classes and Within This Class in the class definition
of Class 363 for the line between Class 315 and Class 363.
Subclass:
253
This subclass is indented under subclass 250. Systems
wherein the load devices are electric space discharge devices
of the type which conduct more current in one direction of
current flow between the cathode and anode electrodes than is
conducted in the other direction of current flow between the
cathode and anode electrodes, the load devices being
connected to an alternating current source so that a
discharge is established alternately in the discharge devices
with each half of the alternating current wave.
SEE OR SEARCH THIS CLASS, SUBCLASS:
252 for this subject matter where the discharge devices are
discharge control discharge devices.
265 for full wave systems wherein the load device is a
plural cathode and/or anode load device.
Subclass:
254
This subclass is indented under subclass 250. Systems
provided with a transformer connected between the source of
supply and at least one of the load devices for supplying
electric current and/or potential to the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
144 for this subject matter for polyphase alternating
current systems.
177 for this subject matter where one load device is
connected in the primary circuit of the transformer and
another is connected in the secondary circuit of the
transformer.
212 for plural load device systems having a distributor type
periodic switch means and a transformer in the supply circuit
of the load devices.
276 and indented subclasses and the subclasses specified in
the notes to the definition of that subclass, for other
systems with a transformer in the supply circuit of a load
device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 355-363, and the subclasses specified in the Notes
to the definitions of those subclasses, for miscellaneous
transformer systems and for systems having a transformer for
controlling the magnitude of the current and/or voltage in a
single circuit.
Subclass:
255
This subclass is indented under subclass 254. Systems
provided with two or more transformers in the supply
circuit.
(1) Note. Two or more of the load devices may each have a
transformer in its supply circuit, or there may be a
plurality of transformers in the supply circuit of one of the
load devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
257 for plural load device systems under subclass 254 having
a plural secondary or tapped secondary in the supply circuit
of the load devices.
277 for other systems provided with a plurality of
transformers in the supply circuit of the load device.
Subclass:
256
This subclass is indented under subclass 255. Systems
wherein two or more of the load devices each have a
transformer in its supply circuit and the primary coils of
the transformers are connected in electrical series relation
with respect to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
185 and indented subclasses, for plural load device systems
under the class definition wherein the load devices are
connected in electrical series relation.
Subclass:
257
This subclass is indented under subclass 254. Systems
wherein the transformer is provided with (1) two or more
secondary coils, or (2) a tapped secondary coil, and a load
device is connected to each of the secondary coils or each of
the sections of the tapped secondary coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
278 for other systems under the class definition provided
with a transformer in the supply circuit of a load device,
the transformer being provided with three windings.
282 for other systems with tapped transformers in the supply
circuit of the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 251 and 332, for miscellaneous systems having a
plural primary or secondary winding transformer for
controlling the magnitude of the current and/or voltage in a
single circuit.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors with plural
coils.
Subclass:
258
This subclass is indented under subclass 250. Systems
provided with an inductance connected either in electrical
series relation or electrical shunt relation to at least one
of the load devices and the source of current supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
283 and indented subclasses, for other pulsating or A. C.
systems having an inductance connected in the supply
circuit.
289 and indented subclass, and the subclasses specified in
the notes to the definition of those subclasses for other
systems provided with an inductance in the supply circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 247, 301, 305, and 328, and the subclasses specified
in the notes to the definition of those subclasses for
miscellaneous reactor systems and for systems having an
inductance for controlling the magnitude of the current
and/or voltage in a single circuit.
Subclass:
259
This subclass is indented under subclass 258. Systems
wherein the inductance in the circuit is a variable
inductance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
284 and indented subclasses, for other systems under
subclass 246 having a variable inductance in the supply
circuit of the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 247, 301, 305, and 328 and the subclasses specified
in the notes to the definition of these subclasses, for
systems having a variable inductance for controlling the
magnitude of the current and/or voltage in a single circuit.
336, Inductor Devices, appropriate subclasses for the
structure of variable transformers and inductive reactors
including saturable reactors.
Subclass:
260
This subclass is indented under subclass 246. Systems
wherein the load device in the system is an electric space
discharge device which has two or more cathodes and/or two or
more anodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
145 for this subject matter where the discharge device is
connected in a ployphase A. C. supply system and there is a
transformer in the supply circuit.
147 and indented subclass, for this subject matter where the
discharge device is connected in a ployphase A. C. supply
system.
334 and indented subclasses, and the subclasses referred to
in the notes to the definition of those subclasses, for other
systems under the class definition wherein the load device is
provided with a plurality of cathodes or anodes.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 306 and the
subclasses specified in the Notes thereto for the structure
of discharge devices which have two or more cathodes or two
or more anodes.
Subclass:
261
This subclass is indented under subclass 260. Systems
wherein the electric discharge device is provided with at
least one principal anode and at least one principal cathode
and an auxiliary discharge electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
194 for this subject matter where the system includes means
to shift the phase of the current supplied to the auxiliary
starting electrode with respect to the current flowing in the
principal electrode circuit.
268 and indented subclasses, for systems wherein the
discharge device is provided with an auxiliary electrode
placed adjacent one of the principal electrodes, usually the
cathode, and having the auxiliary electrode connected to a
source of potential so that an electrostatic field is created
near the principal electrode to facilitate initiating the
discharge, the electrostatic electrode being arranged with
respect to the principal electrode that there is no flow of
discharge current to the electrostatic electrode. In such
systems, the discharge electrodes are usually enclosed in a
vitreous envelope and the auxiliary control electrode is
placed on the outside of the envelope near the cathode.
335 and indented subclass, and the subclasses specified in
the notes to the definition of these subclasses, for other
systems under the class definition wherein the load device is
provided with an auxiliary starting electrode.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 592, 594, 595+, and
601+ for discharge devices which are provided with an
envelope containing a gas or vapor and which have an
auxiliary starting electrode, and subclasses 306+ for other
discharge devices which have an auxiliary starting
electrode.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class in the class
definition of Class 323.
Subclass:
262
This subclass is indented under subclass 261. Systems
provided with (1) a transformer connected between the source
of supply and the discharge device for supplying electric
current or potential to the auxiliary electrode circuit, or
(2) a transformer connected between the source of supply and
the discharge device for supplying electric current or
potential to the principal electrodes of the discharge
device, the transformer being provided with an auxiliary
winding which supplies current or potential to the auxiliary
electrode circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
276 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses, for other
systems provided with a transformer in the supply circuit of
the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 355-363 and the subclasses specified in the
notes to the definition of these subclasses for miscellaneous
transformer systems.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors having
plural windings.
Subclass:
263
This subclass is indented under subclass 261. Systems having
(1) means for generating a surge of potential which is higher
than the potential of the source of supply and applying the
potential surge to the auxiliary electrode, or (2) an
inductance in electrical series relation in the circuit which
supplies potential to the auxiliary electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
262 for systems wherein a transformer is utilized to impress
a higher or lower potential or current on the auxiliary
electrode than that impressed upon the principal electrodes.
283 and indented subclasses, and the subclasses specified in
the notes to the definition of those subclasses, for other
systems under subclass 246 having an inductance in the supply
circuit of the load device.
289 and indented subclass, and the subclasses specified in
the notes to the definition of those subclasses, for other
systems under the class definition provided with an
inductance or surge generating means in the supply circuit of
the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 355-363, and the subclasses specified in the notes
to the definitions of these subclasses for miscellaneous
reactor systems.
Subclass:
264
This subclass is indented under subclass 261. Systems in
which an impedance is connected between the auxiliary
electrode and the source of current supply of the principal
electrodes of the discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
263 for this subject matter where the impedance is an
inductance.
337 for other plural cathode and/or anode load device
systems having an impedance connected between two cathodes or
anodes.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 364-370 and the subclasses specified in the
notes to the definition of these subclasses for miscellaneous
impedance systems.
Subclass:
265
This subclass is indented under subclass 260. Systems
wherein the electrical discharge device is connected to an
alternating current supply circuit so that two of the
electrodes (such as the anodes) have impressed thereon,
alternately, a positive and negative potential, one of these
electrodes being positive when the other is negative, and
having the electrode (such as the cathode) which cooperates
with these electrodes (anodes) connected to a point in the
circuit which has a potential intermediate that of the
alternating potential impressed on the first mentioned
electrodes so that a discharge is established between an
anode and a cathode on each half of the alternating current
wave.
(1) Note. The discharge device may have two cathodes and an
anode with the discharge alternating between the anode and
different cathodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
140 for full wave systems where the supply circuit is a
polyphase alternating current system and includes phase
multiplying means in the supply circuit.
141 for full wave systems where the supply circuit is a
polyphase alternating current system and includes a
transformer in the supply circuit.
146 for full wave systems where there are a plurality of
discharge control discharge device load devices connected in
a polyphase alternating current supply system.
147 for the subject matter where the discharge device is
connected to a polyphase alternating current supply system.
195 for full wave systems where there are a plurality of
discharge control discharge device load devices in the
system, and the system includes means to shift the phase of
the control current and/or potential with respect to the
current in the cathode-anode circuit.
253 for miscellaneous full wave systems under subclass 246
where there are a plurality of asymmetrical discharge device
load devices in the system.
Subclass:
266
This subclass is indented under subclass 265. Systems
provided with a transformer connected between the source of
supply and the load device for supplying electric current or
potential to the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
145 for this subject matter where the discharge device is
connected in a polyphase alternating current supply system.
276 and indented subclasses and the subclasses referred to
in the notes to the definition of those subclasses, for other
systems provided with a transformer in the supply circuit.
Subclass:
267
This subclass is indented under subclass 246. Systems
wherein the load device is a discharge device and an
electromagnet is placed adjacent to the interelectrode
discharge space of the discharge device so that the space
discharge is influenced by the magnetic flux.
SEE OR SEARCH THIS CLASS, SUBCLASS:
344 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses, for other
systems under the class definition provided with an electric
discharge device load and an electromagnet for influencing
the electric discharge.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 153 for the
structure of discharge devices which are provided with an
electromagnet.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines Wtih Other Classes and Within This Class in the class
definition of Class 323.
376, Induced Nuclear Reactions: Processes, Systems, and
Elements, 100 for the use of magnetic field or flux in
plasma heating and containment.
Subclass:
268
This subclass is indented under subclass 246. Systems
wherein the load device is a discharge device provided with a
discharge controlling means and the system includes means for
controlling the electric discharge by applying an electric
current and/or potential to the control means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
148 for this subject matter where the discharge device is a
plural cathode and/or anode discharge device and is provided
with discharge control means, the discharge device being
connected in a polyphase alternating current supply system.
194 and indented subclasses, for this subject matter where
the system includes means to shift the phase of the discharge
controlling current and/or potential with respect to the
current in the cathode-anode circuit.
251 for this subject matter where there are a plurality of
discharge control devices in the system, the discharge
devices being of the asymmetrical type, and being connected
in inverse parallel relation with respect to each other.
252 for this subject matter where there are a plurality of
discharge control discharge devices in the system.
261 and indented subclasses, for systems under subclass 246
where the discharge control means is an auxiliary starting
electrode.
267 for systems under subclass 246 where the discharge
controlling means is an electromagnet.
349 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses, for other
systems wherein the load device is a discharge control
discharge device.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 308, and
the subclasses specified in the Notes thereto for the
structure of discharge devices which are provided with a
discharge control electrode.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class in the class
definition of Class 323.
363, Electric Power Conversion Systems, subclass 116 and
121+, and the subclasses mentioned in the notes thereto, for
electronic tube conversion systems wherein the electronic
tube convertor is provided a discharge control device for
controlling the output current. Some of the systems in Class
363 are closely analogous to the systems of this subclass.
See Lines With Other Classes and Within This Class in the
class definition of Class 363 for the line between Class 315
and Class 363.
Subclass:
269
This subclass is indented under subclass 268. Systems
wherein the discharge device is provided with two or more
discharge controlling means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
341 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses, for other
systems provided with a discharge control discharge device
load device having a plurality of discharge controlling
means.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 296 for the
structure of discharge devices which have a plurality of
control grids.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class in the class
definition of Class 323.
Subclass:
270
This subclass is indented under subclass 268. Systems
provided with means to apply two or more different currents
and/or potential to the discharge control means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
350 and indented subclass, for other systems under the class
definition having a discharge control discharge device load
and being provided with means to apply two or more different
currents and/or potentials to the discharge control means.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class in the class
definition of Class 323.
Subclass:
271
This subclass is indented under subclass 270. Systems
provided with means to apply a pulsating and an alternating
potential or two or more different pulsating or alternating
potentials to the discharge control means.
(1) Note. In systems coming within the definition of
subclass 268 wherein a transformer is provided which has two
or more primary windings, each energized by pulsating or
alternating current and having the secondary connected to the
control circuit, the patent is placed in subclass 274 below
and not in this subclass. Where two or more transformers are
provided and the secondary windings are connected either in
series or parallel, with the resultant potential impressed
upon the control means, the patent is placed in this
subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160 and indented subclasses, for plural power supplies.
274 see (1) "Note." above.
351 for other systems under the class definition provided
with means to supply two or more different pulsating and/or
alternating currents to the control means of a discharge
control discharge device load.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class in the class
definition of Class 323.
Subclass:
272
This subclass is indented under subclass 268. Systems
provided with a rectifier and/or an electric space discharge
device connected in the control circuit of the discharge
device.
(1) Note. Where the system includes a plurality of
discharge devices, one of which is connected in the control
circuit of the discharge device which is the load in the
circuit, the patent is classified as a plural load device
system in the subclasses above, where the discharge device in
the control circuit is claimed as a discharge device whose
operation depends upon gaseous ionization even though the
system is claimed as only having one ultimate load device.
Where the controlling discharge device is claimed merely as a
discharge device even though it is disclosed as a gaseous
ionization discharge device, the system is not considered to
be a plural load device system for the purpose of
classification.
SEE OR SEARCH THIS CLASS, SUBCLASS:
197 198, and 199, for this subject matter where the system
includes means to shift the phase of the control current
and/or potential with respect to the current flowing in the
cathode-anode circuit.
198 see the reference to 197, above.
199 see the reference to 197, above.
203 and indented subclass, where the discharge control means
is an auxiliary starting electrode and there is a rectifier
or discharge in the auxiliary electrode circuit.
352 and indented subclass and the subclasses specified in
the notes to the definitions of those subclasses, for other
systems under the class definition provided with a discharge
control discharge device load device and having a rectifier
or discharge device in the control circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class in the class
definition of Class 323.
Subclass:
273
This subclass is indented under subclass 272. Systems
provided with a condenser connected in the control circuit of
the discharge load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
275 for other systems under subclass 268 having a condenser
connected in the control circuit.
353 for other systems under the class definition provided
with a discharge control discharge device load and having a
condenser and a rectifier or a discharge device connected in
the control circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 364, for miscellaneous condenser systems.
Subclass:
274
This subclass is indented under subclass 268. Systems
provided with a transformer connected in the control circuit
of the discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
262 where the discharge control means is an auxiliary
starting electrode and a transformer is connected in the
auxiliary starting electrode circuit.
354 for other systems under the class definition having a
discharge control discharge device load and having a
transformer connected in the control circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 355, for miscellaneous transformer systems.
Subclass:
275
This subclass is indented under subclass 268. Systems
provided with a condenser connected in the control circuit of
the discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
234 where the control device is an auxiliary starting
electrode and a condenser is connected in the starting
electrode circuit.
273 for other systems under subclass 268, having a condenser
and a rectifier and/or discharge device connected in the
control circuit.
355 and indented subclass, for other systems under the class
definition having a discharge control discharge device load,
and having a condenser connected in the control circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 364, for miscellaneous condenser systems.
Subclass:
276
This subclass is indented under subclass 246. Systems
provided with a transformer connected between the source of
supply and the load device for supplying electric current
and/or potential to the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
57 for discharge devices combined with a transformer, the
discharge device and transformer being structurally combined
in a single unitary device.
70 for miscellaneous load devices which are structurally
combined with a transformer so as to form a unitary device.
141 and indented subclasses, for this subject matter where
the supply system is a polyphase alternating current system.
177 for this subject matter where there is a load device in
both the primary and secondary circuits of the transformer.
206 for this subject matter where there is a rectifier
and/or discharge device in the primary circuit of the
transformer.
212 and indented subclasses, for plural load device systems
having a transformer and a distributor type periodic switch
means in the supply circuit.
219 and indented subclasses, for systems having a
transformer in the supply circuit of the load device and a
periodic switch in the primary circuit of the transformer.
239 where there is a condenser and transformer in the supply
circuit.
254 and indented subclasses, for this subject matter where
there are a plurality of load devices in the system.
262 for this subject matter where the discharge device is an
auxiliary starting electrode discharge device, and there is a
transformer in the auxiliary starting electrode circuit.
266 for this subject matter where the load device is a
plural cathode and/or anode discharge device, and the system
is a full wave system.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 32, for systems for supplying current to
discharge devices of the consumable electrode type in which a
transformer is used to supply the current to the discharge
device.
323, Electricity: Power Supply or Regulation Systems,
subclasses 355-363, and the subclasses specified in the notes
to the definitions of those subclasses for miscellaneous
transformer systems and for miscellaneous systems having a
transformer for controlling the magnitude of the current
and/or voltage in a single circuit.
Subclass:
277
This subclass is indented under subclass 276. Systems
provided with two or more transformers in the supply circuit
of the load device.
(1) Note. The transformers may have their primaries and/or
secondaries connected in electrical series or shunt relation,
or the transformers may be connected in cascade, that is,
with the primary of one transformer connected to the
secondary of another transformer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
220 for systems having a plurality of transformers in the
supply circuit of the load device and having a periodic
switch in the primary circuit of at least one of the
transformers.
255 and indented subclass, for plural load device systems
under subclass 246 having a plurality of transformers in the
supply circuit of the load devices.
278 where the transformer is provided with only one primary
winding or only one secondary winding, and there are a
plurality of cooperating windings.
Subclass:
278
This subclass is indented under subclass 276. Systems
wherein the transformer is of the type having three or more
coils or windings.
(1) Note. This subclass does not include systems provided
with transformers having only a primary and secondary coil
with one or both of the coils tapped, but the transformer
used in the system must have three or more separate coils,
although two or more of the coils may be connected in series,
usually so that the current flow through one of the series
connected coils flows in the opposite direction to the
current flow through the other series connected coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
257 for plural load device systems under the class
definition having a plural secondary or tapped secondary
transformer in the supply circuit.
282 for such systems having tapped coils.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 249, 302, 310, 329, and 355, for miscellaneous
transformer systems and for transformer systems for
controlling the magnitude of the current and/or voltage in a
single circuit where the transformer has an auxiliary
saturating winding.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors including
those with three or more coils or windings.
Subclass:
279
This subclass is indented under subclass 276. Systems
provided with means in the primary circuit of the transformer
for regulating the current or voltage supplied to the load
device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
291 and indented subclasses, for other systems under the
class definition which include a current or voltage
regulator.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 247, 301, 305, 328, and 355, for miscellaneous
transformer systems and for systems having a transformer for
controlling the magnitude of the current and/or voltage in a
single circuit, the transformer being provided with current
regulating means in its primary circuit.
Subclass:
280
This subclass is indented under subclass 276. Systems having
means provided in the system so that the transformer may be
connected in the system so as to function either (1) as a
transformer for the current or voltage supplied to the load
device, or (2) as merely an inductance in the supply circuit,
the transformer being converted to an inductance by
connecting one or both of the transformer coils in electrical
series with the source of supply and the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
258 and indented subclass, for plural load device systems
having an inductance in the circuit and a pulsating or A. C.
supply.
283 and indented subclasses, for other systems under
subclass 246, provided with an inductance in the circuit.
Subclass:
281
This subclass is indented under subclass 276. Systems in
which the transformer is provided with means for varying the
inductive coupling between the windings, the inductive
coupling being varied by (1) arranging one of the transformer
windings so as to have free relative movement with respect to
the other winding and/or the transformer core, or (2)
arranging the transformer core so as to have free relative
movement with respect to the transformer windings, or (3)
using a transformer having a core made of two or more parts,
at least one of the parts being arranged so as to have free
relative movement with respect to another of the core parts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
285 for systems having a relatively movable core and coil
type inductance in the supply circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 264 and 347, for miscellaneous transformer systems
and for systems having a transformer for controlling the
magnitude of the current and/or voltage in a single circuit,
the transformer having an adjustable or movable winding or
coil.
336, Inductor Devices, 115 and the subclasses specified in
the Notes thereto for the structure of transformers having
relatively movable coils, and subclasses 130+ and the
subclasses specified in the Notes thereto for transformers
having a relatively movable core and coil.
Subclass:
282
This subclass is indented under subclass 276. Systems in
which the transformer is provided with means for changing the
effective ratio of the input current or voltage to the output
current or voltage.
(1) Note. Examples of transformers such as are used in the
systems in this subclass are transformers having taps in the
coils to vary the number of turns in the coil, or
transformers having a high leakage path for the magnetic flux
in the core, or transformers having the core designed to be
saturated under certain load conditions in the magnetizing
winding and to be unsaturated under other load conditions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
257 for pulsating or A. C. supply, plural load device
systems having a plural secondary or a tapped secondary
transformer in the supply circuit.
278 for this subject matter where the transformer has three
or more coils.
279 for this subject matter where there is a current
regulating means in the primary circuit.
281 for this subject matter where the transformer is of the
relatively movable coil and core type.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 355-363 and the subclasses specified in the
notes to the definition of those subclasses for miscellaneous
transformer systems and for transformer systems for
controlling the magnitude of the current and/or voltage in a
single circuit.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors. See
especially subclass 150 and the subclasses specified in the
Notes thereto, for transformers with tapped coils; and
subclasses 155+ for transformers and inductive reactors of
the leakage reactance type and of the saturating type.
Subclass:
283
This subclass is indented under subclass 246. Systems
provided with an inductance connected either in electrical
series relation or electrical shunt relation to the load
device and the source of current supply for the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
258 and indented subclass, for this subject matter where
there are a plurality of load devices in the system.
265 for this subject matter where the load device is a
plural cathode and/or anode discharge device and there is an
inductance in the system, the system being a full wave
system.
280 for this subject matter where the supply circuit
includes a transformer, the transformer being convertible to
an inductance.
289 and indented subclass and the subclasses referred to in
the notes to the definition of those subclasses, for other
systems under the class definition provided with an
inductance in the supply circuit of the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 355-363, and the subclasses specified in the notes
to the definition of those subclasses for miscellaneous
reactor systems and for systems having an inductance for
controlling the magnitude of the current and/or voltage in a
single circuit.
Subclass:
284
This subclass is indented under subclass 283. Systems
wherein the inductance in the circuit is a variable
inductance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
259 for this subject matter where there are a plurality of
load devices in the system.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 355-363, and the subclasses specified in the notes
to the definition of those subclasses for systems having a
variable inductance for controlling the magnitude of the
current and/or voltage in a single circuit.
336, Inductor Devices, appropriate subclasses for the
structure of adjustable inductive impedances.
Subclass:
285
This subclass is indented under subclass 284. Systems
wherein the inductance coil is provided with a magnetic core,
(1) the coil and the core being arranged so as to have free
relative movement with respect to each other, or (2) the core
being made of two or more parts, at least one of the core
parts being arranged so as to have free relative movement
with respect to another of the core parts so as to vary the
magnetic reluctance of the core, so that the current through
the coil is more or less relatively impeded depending on the
relative positions which the core and coil or the core parts
occupy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
281 for systems having a relatively movable core and coil
type transformer in the supply circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 264 and 347, for miscellaneous reactor systems and
systems for controlling the magnitude of the current and/or
voltage in a single circuit by means of a reactor, the
reactor having a movable coil and/or core.
336, Inductor Devices, 115 and the subclasses specified in
the Notes thereto for the structure of inductive impedances
having relatively movable coils, and subclasses 130+ and the
subclasses specified in the Notes thereto for inductive
impedances having a relatively movable core and coil and
subclasses 155+ for inductive impedances of the regulating
type which do not have moving parts (e.g., saturating type).
Subclass:
286
This subclass is indented under subclass 285. Systems
wherein the movable (coil or core) part is biased against
movement by suitable biasing means, such as a spring or
weight, the relative movement of the coil and core or the
core parts being brought about by variations of the magnetic
flux generated by the variations of the current in the coils,
the value of the current in the supply circuit being thereby
less dependent upon changes in the resistance of the load
device.
SEE OR SEARCH CLASS:
336, Inductor Devices, 40 for the structure of inductive
impedances which have a biased movable coil or core, the
position of the movable part being controlled by the current
in the impedance.
Subclass:
287
This subclass is indented under subclass 246. Systems
provided with means in the supply circuit of the load device
to vary the current or voltage applied to the load device
between a low and high value at constantly recurring
intervals.
(1) Note. This subclass provides for systems under the
class definition wherein the source of current or voltage
supply is a direct source, and the periodic regulator
converts the current or potential to pulsating current or
potential.
SEE OR SEARCH THIS CLASS, SUBCLASS:
209 and indented subclasses, for systems under the class
definition provided with a periodic switch in the supply
circuit of the load device.
Subclass:
288
This subclass is indented under the class definition.
Systems wherein the distributing system for supplying current
to the load device has three or more wires with two wires
connected to the source of supply so that a desired voltage
is maintained between them, the other wires being connected
in the system so that the potential between any of these
wires and either of the first mentioned two wires is less
than the potential between the first mentioned two wires.
(1) Note. This subclass includes, either as originals or
cross references, patents relating to systems wherein a load
device of the type which is within the class definition can
be connected between the two wires of higher potential or
between the intermediate wire and one of the higher potential
wires so as to impress either a high or low potential on the
load device. Also included are patents for supplying current
to a plurality of load devices by means of a three wire
distribution system.
SEE OR SEARCH THIS CLASS, SUBCLASS:
137 and indented subclasses, for systems wherein the load
device is supplied with polyphase alternating current by
means of a three or more wire polyphase alternating current
distributing system.
160 and indented subclasses, for systems which are provided
with a plurality of sources of current supply for one or more
load devices.
184 for systems wherein each side of the current supply is
connected to two or more conductors, three or more load
devices being connected between the two sides of the line,
each load device being connected to a different pair of
conductors from the conductors connected to the other load
devices.
250 and subclass 265, and indented subclass, for systems
having an alternating current supply source for the load
device or devices and having the load device or devices
connected so as to be operative on each half wave of the
alternating current cycle. In many of these systems the
wires connecting the load device or devices to the
alternating current source are arranged so as to constitute a
three wire distribution system or to be closely analogous to
a three wire distribution system.
Subclass:
289
This subclass is indented under the class definition.
Systems provided with (1) means for generating a surge of
potential which is higher than the potential of the source of
supply is provided in the circuit of the load device, or (2)
an inductance connected either in electrical series relation
or electrical shunt relation to the load device and the
source of current supply for the load device.
(1) Note. In many of the systems in this subclass, and
indented subclasses, the load device is an electric space
discharge device which requires a higher potential to start
its operation than to continue its operation after it has
been started. Also included are other systems wherein a
surge generator or inductance is provided for other reasons.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4 and indented subclasses, for cathode-ray tubes which have
structurally combined therewith, so as to form a unitary
device, an inductance.
40 for discharge devices or lamps having an electrode formed
as an inductive impedance.
41 and indented subclasses, for discharge devices having
structurally combined therewith, so as to form a unitary
device, an inductive impedance, such impedance being
connected between the electrodes of the discharge device.
54 for discharge devices and lamps having a plurality of
inductive impedances structurally combined therewith so as to
form a unitary device.
62 for discharge devices having an inductive impedance
structurally combined therewith to form a unitary device.
103 for systems wherein the load device is a discharge
device having a thermionic cathode designed to be heated by
the passage of heating current through it, or an indirectly
heated cathode having an electric heating means, the system
including means to heat supply heating current to the cathode
or cathode heater and to delay the application of the
discharge potential to the discharge electrodes until the
cathode has reached operating temperature, the system also
including means to apply a surge of potential to the
discharge electrodes when the discharge potential is first
connected to the discharge electrodes.
223 where the supply circuit of the load device includes a
transformer, the primary circuit of the transformer including
a periodic switch and an inductance.
242 and indented subclass, for this subject matter where
there is a condenser in shunt to the load device and the
inductance is also included in the circuit.
244 for miscellaneous systems where there is also a
condenser in the supply circuit of the load device in
addition to the inductance.
258 and indented subclass, for this subject matter where the
source of supply current is pulsating and/or alternating.
263 for this subject matter where the load device is an
auxiliary starting electrode discharge device, the auxiliary
starting electrode circuit including an inductance or a surge
generating means.
276 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses, for systems
under the class definition having a transformer in the supply
circuit of the load device.
283 and indented subclasses, for this subject matter where
the load device is supplied with pulsating and/or alternating
current.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 355-363, and the subclasses specified in the notes
to the definition of those subclasses for miscellaneous
reactor systems and for systems having an inductance for
controlling the magnitude of the current and/or voltage in a
single circuit.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors.
Subclass:
290
This subclass is indented under subclass 289. Systems
provided with an electric circuit maker and breaker or
interrupter in the circuit which includes the inductance.
(1) Note. The circuit interrupter may be an electric switch
or an electrolytic device or other means for making and
breaking the inductance circuit.
(2) Note. In many of the systems in this subclass, the
source of current supply, the inductance, and the load
device, which may be a discharge device, are connected in
electrical series relation when the load device is operating,
and the circuit interrupter is connected so as to shunt the
load device so that the source of supply and the inductance
are connected in electrical series relation when the load
device is not in operative condition whereby current may flow
through the inductance, the circuit interrupter when opened
or placed in its second closed position then placing the load
device in series with the inductance so that the high
potential surge generated by the inductance when the circuit
is interrupted is impressed upon the load device to initiate
operation of the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
103 for this subject matter where the discharge device is of
the type which has a thermionic cathode designed to be heated
by the passage of current through it, or which has an
indirectly heated cathode, the system including means to
supply heating current to the cathode or cathode heater and
to delay the application of discharge potential to the
electrodes until the cathode has reached its operating
temperature, the system also including means to apply a surge
of potential to the discharge electrodes when the discharge
electrodes when the discharge potential is applied to the
electrodes.
209 and indented subclasses for systems having a periodic
switch in the supply circuit of the load device, especially
subclass 223 where a periodic switch and inductance are
connected in the primary circuit of the load device current
supply transformer.
263 for this subject matter where the load device is an
auxiliary starting electrode discharge device and the
inductance is connected in the auxiliary starting electrode
circuit.
SEE OR SEARCH CLASS:
361, Electricity: Electrical Systems and Devices, 268 for
the structure of transformers and inductive reactors combined
with a line switch.
Subclass:
291
This subclass is indented under the class definition.
Systems which include means to regulate the current and/or
voltage supplied to the load device.
(1) Note. This subclass does not include systems wherein
the load device is a space discharge device having a
discharge control means, such as a control grid,
electromagnet or auxiliary starting electrode, and the only
means for regulating the discharge current is the discharge
control means. For such systems, see subclass 349 and
indented subclasses of this class and the subclasses
specified in the notes to the definition of those
subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36 for devices which include a plurality of series connected
discharge devices and an electrical circuit element, all of
which are structurally combined in a single unitary device,
one of the discharge devices and/or the circuit element
forming means to regulate the flow of current to the other
discharge device.
71 for miscellaneous discharge devices which have
structurally combined therewith, so as to form a unitary
device, an electrical impedance.
106 and 107, wherein the discharge device in the system is
provided with a thermionic cathode designed to be heated by
the passage of current through it or an indirectly heated
cathode, the system including means to supply the cathode or
cathode heater circuit with current, the cathode or cathode
heater circuit including voltage regulating means for the
cathode or cathode heater circuit.
116 for systems where the load device is provided with
electric heating means, the heater circuit including a
regulator for the heating current.
151 for systems wherein the load device circuit includes a
radiant energy responsive means (photocell), the load device
irradiating the radiant energy responsive device and thereby
regulating the current flow in the load device circuit.
156 wherein the supply circuit of the load device includes a
discharge device to control the supply of current to the load
device, the discharge device being controlled by radiant
energy responsive means (photocell).
158 for miscellaneous systems wherein the regulating means
for controlling the current flow to the load device is
controlled by radiant energy responsive means (photocell).
171 for systems where there are plural sources of current
supply for the load device, one of the supply circuits
including a discharge device and/or rectifier for controlling
the supply of current from one of the current sources to the
load device.
200 for systems where there is an electric discharge device
or rectifier in the supply circuit of the load device to
control the flow of current to the load device.
224 for systems wherein the supply circuit for the load
device includes a periodic switch and an impedance or current
regulator.
277 for systems wherein the pulsating or alternating current
is supplied to the load device and there are a plurality of
transformers in the supply circuit, the transformers
including means to regulate the supply of current to the load
device.
279 for systems wherein pulsating or alternating current is
supplied to the load device, a transformer being included in
the supply circuit and a current regulating means being
included in the primary circuit of the transformer.
280 for systems wherein pulsating or alternating current is
supplied to the load device, a transformer being included in
the supply circuit, the transformer being connected in the
circuit so that it may be converted into an inductance.
281 for systems wherein pulsating or alternating current is
supplied to the load device, a movable core and coil-type
transformer being connected in the supply circuit of the load
device.
282 for miscellaneous systems wherein pulsating and/or
alternating current is supplied to the load device, a
regulating transformer being included in the supply circuit.
287 for this subject matter wherein the regulator is a
periodic-type current and/or voltage regulator.
289 for miscellaneous systems where there is an inductance
in the supply circuit and see the notes to such subclass.
349 see (1) "Note." above.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 135, for systems provided with means to
regulate the current or voltage supplied to discharge devices
of the consumable electrode type.
322, Electricity: Single Generator Systems, appropriate
subclasses for generator regulating systems, particularly 17,
for automatic generator regulating systems.
323, Electricity: Power Supply or Regulation Systems,
subclasses 220-354, for miscellaneous systems for controlling
the magnitude of the current and/or voltage in a single
circuit.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for
miscellaneous distribution systems which include regulators.
336, Inductor Devices, appropriate subclasses for the
structure of transformers and inductive reactors, including
tap-change transformers and saturable reactors.
338, Electrical Resistors, 68 for mechanically variable
electrical resistors, such as rheostats and potentiometers.
361, Electricity: Electrical Systems and Devices, 291 for
the structure of variable condensors.
363, Electric Power Conversion Systems, 74 for current
conversion systems having automatic voltage and/or current
magnitude control; and subclass 149 for phase conversion
systems having automatic voltage magnitude and/or phase
control.
378, X-Ray or Gamma Ray Systems or Devices, 91, for X-ray
tube systems provided with means for maintaining the
discharge rate in the tube constant, and subclass 103 for
X-ray tube systems which include a current or voltage
regulating means.
Subclass:
292
This subclass is indented under subclass 291. Systems
wherein the means for controlling the amount of impedance
connected in the supply circuit of the load device is (1) a
perforated card, sheet, or strip having the perforations
arranged in a pattern so that the number and/or location of
the perforations control the operation of the regulator
operator means, for (2) a pattern member having a particular
shape which cooperates with the regulator operating means to
control the operation of the regulators, or (3) a keyboard
consisting of a plurality of manually actuated keys, each of
which controls the operation of the regulating means
associated therewith.
SEE OR SEARCH THIS CLASS, SUBCLASS:
316 for other keyboard or pattern controlled switching
systems.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses, for keyboard switches, and subclass 46, for
pattern switches.
307, Electrical Transmission or Interconnection Systems, 38
for selectively controlled plural load circuits, including
those controlled by a program or sequence determining means.
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, 168 for
selective electrically controlled visual display systems
actuated by a keyboard.
Subclass:
293
This subclass is indented under subclass 291. Systems,
wherein (1) the supply circuit of the load device includes at
least two impedances, means being provided for selectively
connecting either of the two impedances in the supply circuit
of the load device, or (2) the regulator in the supply
circuit of the load device is designed to have its impedance
varied over a range of values, means being provided to
preselect the value of the impedance to be connected in the
circuit and means being provided to effect a transition from
one of the impedance values and to stop such transition at
the preselected impedance value.
(1) Note. The systems in this subclass are designed to
energize the load device with current of one intensity and
while the load device is energized to preselect the value of
the impedance which is to be connected in the circuit for the
subsequent energization of the load device.
(2) Note. The systems in this subclass are often used to
control stage and theater lights.
SEE OR SEARCH THIS CLASS, SUBCLASS:
292 for preselectable regulator systems of the keyboard or
pattern controlled type.
314 for plural load device systems which include
preselectable switching means.
Subclass:
294
This subclass is indented under subclass 291. Systems which
include means to regulate the current or voltage supplied to
two or more of the load devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
292 for this subject matter where the regulating means is
controlled by a keyboard or pattern controlled mechanism.
293 for this subject matter where the system includes
pre-selectable regulating means.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 31
for plural load circuit systems having regulators therefor.
Subclass:
295
This subclass is indented under subclass 294. Systems
provided with means for selectively connecting at least one
regulating means in the supply circuit of either of two load
devices.
Subclass:
296
This subclass is indented under subclass 294. Systems having
the regulating means connected in the circuit so that by
varying the regulating means, the impedance in one of the
load device circuits is decreased and the impedance in
another load device circuit is increased.
Subclass:
297
This subclass is indented under subclass 294. Systems,
wherein the regulation of the current or potential supplied
to the load device is automatically controlled in response to
some condition.
(1) Note. The condition controlling the regulation may be
the current or potential of the load device circuit, some
condition, such as the temperature, of the load device, or
the temperature of the atmosphere in which the load device
operates or any other condition affecting the operation of
the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
301 for miscellaneous systems where there are a plurality of
automatic regulators in the system.
307 and indented subclasses, for miscellaneous systems which
include an automatic regulating means.
SEE OR SEARCH CLASS:
336, Inductor Devices, 30 for the structure of transformers
and inductive reactors which are designed to have their
effective impedance varied in response to a condition.
Subclass:
298
This subclass is indented under subclass 294. Systems,
wherein two or more regulators are provided for regulating
the current and/or voltage supplied to two or more of the
load devices, each of these two regulators having a movable
means to vary the effective impedance of the regulator in the
load device circuit, the movable means of each of these
regulators being mechanically connected to a common operating
member.
Subclass:
299
This subclass is indented under subclass 291. Systems,
wherein the current or voltage supply to the load device is
controlled by (1) two or more diverse type regulating means,
or (2) two or more regulating means of the same or diverse
type which are operated by separate operating means, or (3)
two or more regulating means connected in the system in
different ways so as to control the current and/or voltage by
exercising different effects in the systems.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 31
for plural load circuit systems having regulators therefor.
323, Electricity: Power Supply or Regulation Systems,
subclasses 220-354 for miscellaneous regulators which may
have diverse type regulating means.
Subclass:
300
This subclass is indented under subclass 299. Systems,
wherein one of the regulating means is a generator of current
and means are provided for varying some characteristic of the
generating means so as to vary the current or voltage output
of the generating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
302 and indented subclasses, for other systems under
subclass 291, provided with means for controlling the current
generating means for regulating the current supplied to the
load device.
SEE OR SEARCH CLASS:
322, Electricity: Single Generator Systems, appropriate
subclasses, for miscellaneous regulation systems wherein the
regulation is controlled by the current generating means.
Subclass:
301
This subclass is indented under subclass 299. Systems
wherein two or more of the regulating means are designed to
be controlled automatically in response to some condition.
(1) Note. The condition controlling the operation of the
regulating means may be the current or potential of the
circuit of the load device, some condition of the load device
such as its temperature, or the temperature of the atmosphere
in which the load device is operating, or any other condition
affecting the operation of the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
307 and indented subclasses, for other systems under
subclass 291 provided with automatically controlled current
regulating means.
Subclass:
302
This subclass is indented under subclass 291. Systems
wherein regulation is secured by varying some characteristic
of the current or voltage generator, or by varying the number
of generators used to supply the current or voltage, so as to
vary the current or voltage output of the generating means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
300 for this subject matter where there are a plurality of
regulating means in the system, one of the regulating means
being a current generating means.
SEE OR SEARCH CLASS:
322, Electricity: Single Generator Systems, appropriate
subclasses, for miscellaneous generator regulator systems.
Subclass:
303
This subclass is indented under subclass 302. Systems,
wherein the current or voltage is generated by a
dynamoelectric machine, and means are provided for
controlling the operation of the prime mover for the
dynamoelectric machine so as to regulate the output of the
dynamoelectric generator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78 where the system is combined with vehicle structure, the
generator being driven by the motor of the vehicle or some
part of the vehicle which varies its speed due to variations
in speed of the vehicle, such as a wheel.
SEE OR SEARCH CLASS:
290, Prime-Mover Dynamo Plants, appropriate subclasses, for
prime-mover dynamoelectric machines and the control means
therefor which are of general application excepting when the
prime mover is a dynamoelectric machine (electric motor).
322, Electricity: Single Generator Systems, 14, for
generator systems having combined control of generator and
driving means and subclasses 38+, for generator systems
having driving means control.
363, Electric Power Conversion Systems, 102, 150 for
conversion systems and 174+, including dynamoelectric
convertors.
Subclass:
304
This subclass is indented under subclass 302. Systems
wherein the current or voltage generator is a dynamoelectric
generator having a plurality of exciting fields.
SEE OR SEARCH CLASS:
322, Electricity: Single Generator Systems, 63, for
generator systems wherein the generator control includes a
plurality of field windings.
Subclass:
305
This subclass is indented under subclass 304. Systems
wherein the generator is provided with three or more exciting
fields.
Subclass:
306
This subclass is indented under subclass 291. Systems
wherein the regulator is placed in shunt circuit to the load
device so that part of the current from the source of current
supply is diverted from the load device to the regulator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
119 and indented subclasses, for systems under the class
definition provided with means for automatically completing a
circuit in shunt to the load device when the load device
becomes (1) inoperative through failure of some part, such as
the filament where the load device is a lamp, or (2) when the
supply voltage becomes either too high or too low for the
proper operation of the device. The shunt circuit is usually
completed in the systems in subclass 119 and indented
subclasses by the closing of an electric switch.
207 for systems under the class definition having a
discharge device connected in shunt to the load device, the
discharge device being adapted to regulate the current flow
to the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 220-233, for systems for controlling the magnitude
of the current and/or voltage in a single circuit by means of
an impedance connected in shunt with the circuit.
Subclass:
307
This subclass is indented under subclass 291. Systems
wherein the regulation of the current or potential supplied
to the load device is automatically controlled in response to
some condition.
(1) Note. The conditions controlling the regulation may be
the current or potential of the load device circuit, some
condition of the load device such as the temperature of the
load device, or the temperature of the atmosphere in which
the load device is operating, or any other condition
affecting the operation of the load device.
(2) Note. See the notes to subclass 291.
SEE OR SEARCH THIS CLASS, SUBCLASS:
278 for this subject matter where the supply circuit of the
load device includes a three or more coil-type transformer
for automatically regulating the supply of current to the
load device.
291 see note (2) above.
297 for this subject matter where there are a plurality of
load devices in the system.
301 for this subject matter where there are a plurality of
automatic regulators in the system.
302 and indented subclasses, for this subject matter where
the automatic regulators effect the operation of the supply
current generating means.
306 for this subject matter where the automatic regulating
means is connected in shunt relation to the load device.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 31
for plural load circuit systems having means for
automatically controlling the current or power therein.
322, Electricity: Single Generator Systems, 17, for
automatic generator regulation systems of general
application.
323, Electricity: Power Supply or Regulation Systems,
subclasses 234-303, for systems for controlling the magnitude
of the current and/or voltage in a single circuit by means of
an automatically controlled impedance.
336, Inductor Devices, 30 for the structure of transformers
and inductive reactors which are designed to have their
effective impedance varied in response to a condition.
363, Electric Power Conversion Systems, 74 for current
conversion systems having automatic voltage and/or current
magnitude control; and subclass 149 for phase conversion
systems having automatic voltage magnitude and/or phase
control.
373, Industrial Electric Heating Furnaces, 102, for electric
arc furnace systems provided with current and/or voltage
regulating means.
Subclass:
308
This subclass is indented under subclass 307. Systems
wherein the regulating means is responsive to two or more
conditions; such as, the current and the voltage of the
circuit, or a condition of the load device and the current or
voltage of the circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
301 for systems under subclass 291, provided with a
plurality of automatically operated regulators in the supply
circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 234-303, for automatically controlled systems for
controlling the magnitude of the current and/or voltage in a
single circuit by means of an impedance which is controlled
in response to a plurality of conditions.
Subclass:
309
This subclass is indented under subclass 307. Systems,
wherein the regulating means is responsive to a thermal
condition.
(1) Note. The thermal condition may be, for example, (1)
the heat generated by the current in the load device circuit
flowing through an impedance, or (2) the heat generated by
the load device, or (3) the temperature of the atmosphere in
which the load device is operating.
(2) Note. This subclass includes ballast resistance devices
placed in the circuit of the load device.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 236 and 245, for automatically controlled systems
for controlling the magnitude of the current and/or voltage
in a single circuit by means of an impedance which is
responsive to a thermal condition.
Subclass:
310
This subclass is indented under subclass 307. Systems
wherein the system includes a current limiting impedance and
means to open and close a low impedance shunt circuit about
the current limiting impedance, the shunt circuit controlling
means being operated automatically in response to some
condition.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 296-298, for systems having a resistor which may
be short circuited for controlling the magnitude of the
current and/or voltage in a single circuit.
Subclass:
311
This subclass is indented under subclass 307. Systems
wherein the regulating means is a device designed to have its
impedance varied automatically in response to some
condition.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply, or Regulation Systems,
subclasses 234-303, for systems having an automatically
controlled impedance for controlling the magnitude of the
current and/or voltage in a single circuit.
Subclass:
312
This subclass is indented under the class definition.
Systems having a plurality of load devices connected in the
system.
(1) Note. Where the claimed system includes a plurality of
lamps or discharge devices and one is connected in the
circuit so as to control or modify the current flow to the
other which is the ultimate load device in the system, or
where a lamp or discharge device is connected in the control
circuit of the discharge control discharge device where the
load device is a discharge control discharge device, the
patent is classified as a plural load device system where the
controlling and/or modifying device is a lamp or discharge
device whose operation depends upon gas or vapor ionization
even though the system is claimed as having only one ultimate
load device. Where the controlling and/or modifying device
is claimed, merely as a discharge device, even though it is
disclosed as a gaseous ionization discharge device, the
controlling and/or modifying device is not considered to be a
load device for the purpose of classification.
SEE OR SEARCH THIS CLASS, SUBCLASS:
35 and indented subclasses, for devices which include a
plurality of discharge device units and an electrical circuit
element which are all structurally combined in a unitary
device.
46 for devices which include an electric lamp of the
filament type and a discharge device unit structurally
combined in a unitary device, the lamp being connected in
shunt to the discharge electrodes.
49 for devices which include an electric lamp of the
filament type and a discharge device unit structurally
combined in a unitary device, the lamp being connected in
series relation to the discharge electrodes.
64 and indented subclasses, for multiple filament lamps
structurally combined with a circuit element.
88 for systems with means to automatically substitute
another load device when the operating load device fails.
95 for plural discharge device load device systems, the
discharge devices having heatable cathodes, and the system
including means to supply current to the cathodes or cathode
heaters.
113 and indented subclass, for plural load device systems
provided with means for modifying the temperature of the load
devices.
121 and indented subclass, for plural load device systems
with automatically operating means to close a shunt circuit
about or to open the circuit of one or more of the load
devices.
130 for plural load device systems provided with a signal
indicator or alarm.
137 and indented subclasses, for polyphase alternating
current plural load device systems.
152 and indented subclasses, for plural load device systems
which include a radiant energy sensitive device (photocell).
161 and indented subclasses, for plural load device systems
wherein there are a plurality of sources of current supply
for the load devices.
177 where there is one load device in the secondary of the
supply transformer and another in the primary circuit.
178 and indented subclasses, for plural load device systems
wherein two or more of the load devices are of the diverse
types.
184 for systems wherein the load devices are connected
between different pairs of paired supply conductors.
185 for plural electrical series connected load devices.
195 and indented subclasses, for plural discharge control
discharge device loads with phase shifting means in the
discharge control circuits.
201 for plural load device systems with a discharge device
or rectifier in the supply circuit of at least one of the
load devices.
210 and indented subclasses, for plural load device systems
with a periodic switch in the supply circuit of at least one
of the load devices.
228 and indented subclasses, for plural load device systems
with a condenser in the circuit of at least one of the load
devices.
250 and indented subclasses, for plural load device systems
supplied with alternating or pulsating current.
288 for three or more wire systems which include a plurality
of load devices.
292 293, and subclass 294, and indented subclasses, for
plural load device systems with current or voltage regulating
means.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 7, and indented subclass, for systems
which include a plurality of consumable electrode discharge
devices, or a consumable electrode discharge device and a
lamp or discharge device of another type.
Subclass:
313
This subclass is indented under subclass 312. Systems having
an electrical circuit maker and breaker in the current supply
circuit to the load device for selectively controlling the
supply of current to the load devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64 and indented subclasses, for multiple filament lamps
which are structurally combined with an electric switch.
121 for this subject matter where the switch means is an
automatic shunt and/or cutout.
154 for this subject matter where there is a switch means
connected in the circuit to select the load device to be
energized, the switch means being controlled by a radiant
energy sensitive device (photocell).
184 for this subject matter where each side of the supply
circuit includes a plurality of pairs of conductors, three or
more load devices, each being connected to a different pair
of the conductors.
186 for this subject matter where there are a plurality of
series connected load devices, a periodic switch being
included in the supply circuit.
191 for this subject matter where there are a plurality of
series connected load devices, the system including switch
means so the load devices may be converted from series
connected to parallel connected.
193 for this subject matter where there is a plurality of
series connected load devices, the system including switching
means.
210 for this subject matter where there is a periodic switch
which periodically connects different ones of the load
devices to the source of current supply in timed sequence.
362 and the subclasses specified in the notes to the
definition of that subclass for other systems under the class
definition provided with an electric switch in the supply
circuit.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses, especially 1, subclasses 19.06+, subclasses 37
and 46 for multiple circuit control electric switches.
307, Electrical Transmission or Interconnection Systems, 38
for plural load circuit systems having means for selectively
connecting said load circuits.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, subclass 48, 60, 72, 88, and 106+ for
electromagnetically actuated multiple circuit control
switches.
Subclass:
314
This subclass is indented under subclass 313. Systems
wherein the system includes a switching system for
controlling the connection of the load devices to the source
of supply, the switching system including a primary or master
switch and a secondary switch, the primary and the secondary
switch each having two circuit closing positions, the source
of supply being adapted to be connected to the primary
switching means, the primary switch selectively closing the
circuit to either the secondary switch or another circuit,
the secondary switch means selectively closing either of two
circuits so as to connect either of these two circuits to the
source of supply through the primary and secondary switches,
the circuits closed by the primary and the secondary switches
in each of their operated positions serving to close the
circuit from the source of supply to at least one of the load
devices, for example: [figure] [figure]
(1) Note. The circuits closed by the primary and secondary
switch may be the circuit through which current flows to the
load device, or may be the circuits supplying current to
electrically controlled or operated switches, connected in
the load device circuits, the electrically controlled or
operated switch connecting the load devices directly to the
source of supply for the load devices.
(2) Note. This subclass includes systems wherein there are
only two load devices, a different one of the load devices
being energized in each of the circuit closing positions of
the secondary switch and one of the load devices being
energized when the primary switch is in the circuit closing
switch positions which does not include the secondary
switch.
(3) Note. This subclass includes systems wherein there are
three or more load devices, a different one of two of the
load devices being energized in each of the circuit closing
positions of the secondary switch positions and the third
load device being energized when the primary switch is in the
circuit closing position which does not include the secondary
switch.
(4) Note. The systems in this subclass are designed to
permit the selection of the load device to be energized from
the group of load devices controlled by the secondary switch
means prior to the closing of the circuit to the secondary
switch means by the primary switch means.
(5) Note. The systems in this subclass are often used to
control stage and theater lights.
SEE OR SEARCH THIS CLASS, SUBCLASS:
293 for pre-selectable regulating systems.
316 for switching systems under subclass 313 wherein the
switching means includes a keyboard or pattern (perforated
sheet).
317 and indented subclasses, for other systems under
subclass 313 wherein there are three or more load devices.
320 and indented subclass, for other systems under subclass
313 having a plurality of switches in the supply circuit.
322 for other systems under subclass 313 provided with an
alternate circuit closing switch.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 38
for plural load circuit systems having means for selectively
connecting said load circuits.
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, 1 for
visual display systems with preselectable switching systems
included for providing selective electrical control of the
display.
Subclass:
315
This subclass is indented under subclass 314. Systems
wherein the circuit controlling switches for closing the
circuit from the source of supply to the load device circuits
are electrically controlled or operated switches, the
pre-selectable switches being connected in the circuit of the
electrically controlled or operated load device circuit
switches and serving to select the electrical switch
controller or operator to be energized, and thereby to select
the load device circuits which are to be energized.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 38
for switching systems of general application for controlling
two or more load device circuits.
361, Electricity: Electrical Systems and Devices, 139 for
relay switching systems of general application.
Subclass:
316
This subclass is indented under subclass 313. Systems
wherein the switch for controlling the load device circuits
is (1) a switch wherein the contacts are controlled by either
a perforated card, sheet, or strip, having the perforations
arranged as a pattern so that the number and/or the location
of the perforations determine which of the switch contacts
are to be operated or (2) a pattern member having a
particular shape which cooperates with the switch contacts to
determine which of the switch contacts are to be operated, or
(3) a switch which is provided with a keyboard consisting of
a plurality of manually actuated keys, each of which controls
the operation of the switch contacts associated therewith.
SEE OR SEARCH THIS CLASS, SUBCLASS:
292 for keyboard operated or pattern controlled regulating
systems.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses, for keyboard operated switches and subclass 46,
for pattern sheet controlled switches.
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, 168 for
selective electrically controlled visual display systems
actuated by a keyboard.
Subclass:
317
This subclass is indented under subclass 313. Systems having
three or more load device circuits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
68 for multiple filament lamps having three or more
filaments and having an electric switch structurally combined
therewith so as to form a unitary device.
184 for this subject matter where each side of the supply
circuit includes a plurality of conductors, there being three
or more load devices, each of the load devices being
connected to a different pair of the supply conductors.
211 for this subject matter where there is a periodic switch
which periodically connects different ones of the load
devices to the source of current supply in timed sequence.
314 for this subject matter where the switch means is a
preselectable switching system.
316 for this subject matter where the switch means is
operated by keyboard means or is controlled by a pattern.
Subclass:
318
This subclass is indented under subclass 317. Systems
wherein the switch means is provided with at least two
circuit closing positions, the circuit being completed from
the source of supply to a group consisting of two or more
load devices in each of the circuit closing positions, each
of the groups including a load device not included by the
other groups and at least one load device which is included
by at least one other group.
SEE OR SEARCH THIS CLASS, SUBCLASS:
314 and indented subclass, where the system is a
preselectable switching system.
Subclass:
319
This subclass is indented under subclass 318. Systems
wherein the switch means is provided with at least four
different circuit closing positions, the switch means being
connected in the circuit so as to complete the circuit from
the source of supply to a group of load device circuits in
each of its circuit closing positions, each of the groups
containing a different combination of load devices from that
of each of the other groups.
SEE OR SEARCH THIS CLASS, SUBCLASS:
314 and indented subclass, where the system includes
preselectable switching means.
SEE OR SEARCH CLASS:
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, 1 for
visual display systems with switching means included for
providing selective electrical control of the display.
Subclass:
320
This subclass is indented under subclass 313. Systems having
two or more switches connected in the circuit between the
source of supply and the load devices.
(1) Note. The system may have a switch in the circuit
between each load device and the source of supply or there
may be a plurality of switches in the circuit between the
source of supply and one or more of the load devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
314 and indented subclass, where the system includes
preselectable switch means.
Subclass:
321
This subclass is indented under subclass 320. Systems
wherein there is a switch in each of at least two load device
circuits, and a master switch is connected in the system so
as to be capable of closing the circuit from the source of
supply to these two load devices irrespective of the open or
closed position of any other switches in the load device
circuits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
361 for systems under the class definition provided with a
load device and two control means located at different places
in the supply circuit for controlling the supply of current
to the load device, each of the control means (switch) being
designed to perform the same control function irrespective of
the condition of operation of the other control device (i.e.,
open and close the circuit to the source of supply, so called
lazy man system).
Subclass:
322
This subclass is indented under subclass 313. Systems which
include at least two load device circuits and an electric
switch having two or more contacts each of which is connected
to a different one of the load device circuits, the
cooperating contact means being arranged to close the circuit
from the source of supply to one of the load devices to the
exclusion of the other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64 for multiple filament load devices which have an electric
switch structurally combined therewith, the switch being
designed to close the circuit to one of the filaments to the
exclusion of another.
83 for this subject matter where the load devices are
claimed as being vehicle (automobile) headlight systems.
211 and indented subclasses, for this subject matter where
the system includes a periodic distributor type switch which
periodically connects different ones of the load devices to
the source of current supply in timed sequence.
317 for systems under subclass 313 wherein the system
includes a switch for closing the circuit to three or more
load device circuits in progressive order.
320 and indented subclass, for systems under subclass 313
wherein two or more switches are provided so that any one of
two or more load devices may be supplied with current.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 1, 19.06+, 37
for multiple circuit control and multiple contact electric
switches.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 106 for electromagnetically actuated
switches of the multiple contact type.
Subclass:
323
This subclass is indented under subclass 312. Systems
provided with means to start the load devices into operation
one after another in sequence.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46 and indented subclasses for devices which include a
filament lamp and a discharge device structurally united in a
unitary structure, the filament being connected in shunt to
the discharge electrode, and the device being designed so
that the filament becomes luminous before the electric
discharge is established between the discharge electrodes.
65 for multiple filament load devices which have an
automatically operating circuit element, such as a switch,
structurally combined with the load device so as to form a
unitary device, the automatically operating means
substituting a second filament for the first operated
filament when the first operated filament fails to operate
properly.
87 and subclass 88 and indented subclasses, for systems in
which a load device is operated until it fails to operate
properly when automatically operated means substitute another
load device for the first operated load device.
137 and indented subclasses, for systems having a plurality
of load devices supplied with polyphase alternating current,
the sequence of operation being determined by the phases of
the alternating current.
195 where the load devices are discharge control discharge
devices, and the system includes phase shifting means for
controlling the discharge control means to thereby determine
the sequence of operation.
211 and indented subclasses, where the system includes a
distributor type periodic switch.
229 where a commutating condenser is connected to either the
cathodes or the anodes of a plurality of discharge device
loads so as to cause them to operate alternately.
250 and indented subclasses where the current supplied to a
plurality of load devices is alternating current.
294 and indented subclasses where the sequential operation
is controlled by regulating means.
313 and indented subclasses, where the sequential operation
is controlled by electric switch means.
Subclass:
324
This subclass is indented under subclass 312. Systems having
two or more discharge device loads in the system.
(1) Note. Where a single lamp or a single discharge device
is the ultimate load device, and the system includes an
additional lamp and/or discharge device in the circuit which
is connected in the circuit so as to control and/or modify
the current and/or potential supplied to such single ultimate
load device, the patent is classified as a plural load device
system if (a) the controlling and/or modifying device is a
lamp, or (b) the controlling and/or modifying device is
limited in the claims to being a gas or vapor discharge
device. Conversely, such a system is not classified as a
plural load device system where the controlling and/or
modifying device is claimed broadly as a discharge device
even though it is disclosed as a gas or vapor discharge
device.
The controlling and/or modifying device may be connected in
the control circuit of the discharge device where the
ultimate load device is a discharge control discharge device,
and the same basis of classification is used as is set forth
above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
35 for devices which include a plurality of discharge
devices and an electrical circuit element which are
structurally combined in a unitary device.
86 where the system includes means to automatically
substitute another source of supply for the discharge devices
when the first operated source fails to operate properly.
88 and indented subclasses, where the system includes means
to automatically substitute another discharge device when the
first operated discharge device fails to operate properly.
95 and indented subclasses, where the discharge devices are
provided with resistance heated cathodes or indirectly heated
cathodes, and the system includes means to supply current to
the cathodes or the cathode heaters.
113 and indented subclass, where the discharge devices are
provided with temperature modifying means.
121 and indented subclass, for systems provided with means
to complete a shunt circuit about or to open the circuit of
one of the discharge devices when the discharge device fails
to operate properly.
130 and indented subclasses, for systems provided with a
signal, indicator, or alarm for at least one of the discharge
devices.
137 and indented subclasses, for polyphase alternating
current systems with discharge device load devices.
152 and indented subclasses, where the system includes a
radiant energy sensitive device (photocell).
161 and indented subclasses, where the system includes a
plurality of sources of current supply for the discharge
devices.
177 where the system includes a discharge device load in the
secondary circuit and another discharge device load in the
primary circuit of a current supply transformer.
180 and indented subclass, for plural series connected
diverse type discharge device load devices.
182 and indented subclass, for plural diverse type discharge
device load device systems.
189 and indented subclass, for plural series connected
discharge device load devices.
195 and indented subclasses, for plural discharge control
discharge device, load device systems which are provided with
phase shifting means in the control circuits of the discharge
control means.
201 where the system includes an electric space discharge
device or rectifier in the supply circuit.
228 and indented subclasses, where the system includes a
condenser in the supply circuit.
250 and indented subclasses, where the source of supply is
alternating current.
323 where the system includes means to start the discharge
devices into operation one after another in sequence.
326 and indented subclasses, for other systems provided with
a single discharge device load.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 7, and indented subclass, for systems
which include a plurality of consumable electrode discharge
devices.
Subclass:
325
This subclass is indented under subclass 324. Systems
wherein the load devices are discharge devices which are
provided with a discharge controlling means.
(1) Note. The discharge controlling means may be a grid
electrode, an electromagnet for influencing the space
discharge, an auxiliary starting electrode or other means for
controlling the space discharge in the discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
35 and indented subclasses, for devices which include a
plurality of discharge control discharge device load devices
and a circuit element, all of which are structurally combined
in a single unitary device.
146 where the source of supply is polyphase alternating
current.
195 where the control circuit includes phase shifting means
for shifting the phase of the control current and/or voltage
with respect to the cathode-anode current.
230 where there is a condenser in the supply circuit.
252 where the supply current for the discharge device is
alternating current.
349 and indented subclasses, and the subclasses referred to
in the notes to the definition of those subclasses for
systems wherein the single load device is a discharge control
discharge device.
Subclass:
326
This subclass is indented under the class definition.
Systems wherein the load device is a discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3 for cathode-ray discharge devices which have an electrical
circuit element structurally combined therewith so as to form
a unitary device.
34 for discharge devices which have an antenna structurally
combined therewith so as to form a unitary device.
39 for discharge devices which have a waveguide, coaxial
cable or resonant parallel wire transmission line
structurally combined therewith so as to form a unitary
device.
40 for discharge devices having an electrode formed as an
inductive impedance.
46 for devices which include a discharge device and a
filament lamp which are structurally combined in a single
unitary device, the filament being connected in shunt with
the discharge electrodes.
49 for devices which include a discharge device and a
filament lamp which are structurally combined in a single
unitary device, the filament being connected in series
relation with respect to the discharge electrodes.
50 for discharge devices which are provided with temperature
modifying means, the temperature modifying means being formed
so as to act as a circuit impedance or combined with a
circuit impedance, the discharge device, temperature
modifying means, and the impedance all being structurally
combined in a single unitary device.
51 for discharge devices which have a plurality of
impedances structurally combined therewith so as to form a
unitary device.
55 for discharge devices which have an electric generator or
piezoelectric device structurally combined with the discharge
device so as to form a unitary device.
56 for miscellaneous discharge devices which have an
electric circuit element structurally combined therewith so
as to form a unitary device.
85 where the discharge device is provided with radiation
preventing or shielding means.
86 and indented subclass, for systems for automatically
substituting another source of supply for the discharge
device when the first operated source of supply fails to
operate.
94 and indented subclasses, for discharge devices with
resistance type thermionic cathodes or indirectly heated
cathodes and the source of current supply for the cathode or
cathode heater.
108 and indented subclasses, where the discharge device is
of the confined gas or vapor type and is provided with
pressure regulating means.
111.01 where the discharge device includes means to supply a
fluent material to the discharge space.
112 and indented subclasses, where the discharge device
includes temperature modifying means.
119 and indented subclasses, where the system includes
automatic means to open the circuit of or to complete a shunt
circuit about the discharge device when it fails to operate
properly.
129 and indented subclasses, where the system includes a
signal, indicator, or alarm.
137 and indented subclasses, where the source of supply
current is polyphase current.
149 and indented subclasses, where the circuit includes a
radiant energy ray sensitive device (photocell).
160 and indented subclasses, where the system is provided
with a plurality of sources of current supply for the
discharge device.
178 and indented subclasses, where the system includes a
plurality of diverse type load devices, one of the load
devices being a discharge device.
194 and indented subclasses, where the load device has
discharge control means and the control circuit includes
phase shifting means to shift the phase of the control
current or voltage with respect to the cathode-anode
current.
200 and indented subclasses, where there is a discharge
device or rectifier in the supply circuit.
209 and indented subclasses, where there is a periodic
switch in the supply circuit.
227 and indented subclasses, where there is a condenser in
the supply circuit.
246 and indented subclasses where the source of supply
current is pulsating or alternating current.
291 and indented subclasses, where the system includes a
current and/or voltage regulator.
324 and indented subclass, and the subclasses referred to in
the notes to the definitions of those subclasses, for systems
provided with a plurality of discharge device loads.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, appropriate
subclasses for the structure of discharge devices, per se.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses, for systems wherein the
load device is an electric space discharge device of the
consumable electrode type (such as carbon arc lamps, et
cetera).
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class, "Electronic
Tube Systems," in the class definition of Class 323.
Subclass:
327
This subclass is indented under subclass 326. Systems
wherein the discharge device is of the type wherein the
discharge between the electrodes is initiated by bringing the
electrodes into physical contact with each other and then
separating the electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
263 and subclass 289, and indented subclass, for systems
provided with an inductance or a surge generator in the
circuit of the electrodes and designed to impress a high
potential surge on the electrodes when the electrodes are
separated from each other, after having been placed in
physical contact.
291 and indented subclasses, for systems wherein means are
provided for regulating the current in the supply circuit
when the electrodes are placed in physical contact with each
other.
357 for other movable electrode discharge device systems not
of the discharge drawing type.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 146 for discharge
devices, per se, which are provided with movable electrodes
(other than mere liquid electrodes) which may be brought into
contact with each other, and subclasses 163+ for liquid
electrode discharge devices (e.g., mercury arc lamps and
rectifiers).
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses, for discharge devices of
the consumable electrode type wherein the discharge is
initiated by bringing the electrodes into physical contact
with each other and then separating the electrodes, the
discharge device being provided with means for feeding the
electrodes together to compensate for the consumption of the
electrode material during the discharge, and the circuits
therefor. Class 314, Electric Lamp and Discharge Devices:
Consumable Electrodes, includes carbon arc lamps and the
circuits therefor.
Subclass:
328
This subclass is indented under subclass 327. Systems
wherein the discharge device is mounted so that it can be
tilted, and one of the electrodes is either a liquid or
movably mounted so that when the discharge device is tilted
the electrodes are brought into physical contact with each
other, and when the device is restored to its operating
position, the discharge is drawn between the electrodes.
(1) Note. This subclass includes patents wherein the only
significant support structure for the discharge device
claimed is that which is provided so that the discharge
device may be tilted for starting. Where more of the
discharge device support structure is claimed than that
necessary for mounting the discharge device so that it can be
tilted during starting, the patent is excluded from this
subclass even though the system is claimed.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 49, for
miscellaneous discharge devices having means for supporting
the discharge device so that it may be tilted for starting.
362, Illumination, appropriate subclasses, especially 382
for electric light supports.
Subclass:
329
This subclass is indented under subclass 328. Systems
wherein the means for tilting the discharge device is
controlled by electrical means.
Subclass:
330
This subclass is indented under subclass 327. Systems
wherein the electric discharge device is provided with at
least one principal anode and a principal cathode and an
auxiliary discharge electrode with the auxiliary electrode
mounted so as to physically contact one of the principal
electrodes, at least; during the starting period of the
discharge device, the auxiliary electrode being arranged in
the circuit so that the discharge is initiated between the
auxiliary electrode and one of the principal electrodes, the
auxiliary discharge conditioning the discharge space between
the principal electrodes so that a discharge between the
principal electrodes can be established.
SEE OR SEARCH THIS CLASS, SUBCLASS:
168 for this subject matter where the system includes a
different type of current supply means for the auxiliary
starting electrode from the type of current supply for the
principal electrodes.
194 and indented subclasses, for this subject matter where
the system includes means to shift the phase of the pulsating
and/or alternating current in the auxiliary electrode circuit
with respect to the phase of the current in the cathode-anode
circuit of the load device.
203 for this subject matter where there is a discharge
device or rectifier in the auxiliary electrode circuit.
234 for this subject matter where there is a condenser in
the auxiliary electrode circuit.
261 and indented subclasses, for this subject matter where
the discharge device is supplied with pulsating or
alternating current.
335 and indented subclass, and the subclasses referred to in
the notes to the definitions of those subclasses, for other
systems under the class definition wherein the discharge
device load device is provided with an auxiliary starting
electrode.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 146 for discharge
devices, per se, which have an auxiliary starting electrode
of the discharge drawing type where the auxiliary starting
electrode is movable and subclasses 170+ for discharge
devices, per se, which have a liquid electrode and an
auxiliary starting electrode of the discharge drawing type.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 34, for consumable electrode discharge
devices (arc lamps) having an auxiliary discharge drawing
starting electrode and the circuit therefor.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class, "Electronic
Tube Systems," in the class definition of Class 323.
Subclass:
331
This subclass is indented under subclass 330. Systems
wherein the auxiliary starting electrode of the discharge
device is mounted so as to be movable into physical contact
with one of the principal electrodes.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 146 for discharge
devices, per se, which are provided with a movable discharge
drawing auxiliary starting electrode.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 34, for consumable electrode discharge
devices (carbon arc lamps) having a movable auxiliary
discharge drawing starting electrode and the circuit
therefor.
Subclass:
332
This subclass is indented under subclass 331. Systems
provided with electrically operated means for moving the
auxiliary electrode with respect to the principal electrode,
and having an automatically operated electric switch for
controlling the circuit of the electrically operated
auxiliary electrode moving means.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 146 for discharge
devices, per se, which have a movable discharge drawing
auxiliary starting electrode where the operating means for
moving the auxiliary electrode is an electrical means.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 34, for discharge devices of the
consumable electrode type (carbon arc lamps, et cetera)
having an auxiliary discharge drawing starting electrode and
provided with an automatically operated switch for
controlling the circuit of the auxiliary electrode moving
means.
Subclass:
333
This subclass is indented under subclass 327. Systems
provided with electrically operated means for moving the
electrodes into physical contact with each other and for
separating the electrode and having the automatically
operated means for opening the circuit of the electrically
operated electrode moving mechanism when the space discharge
is initiated.
SEE OR SEARCH THIS CLASS, SUBCLASS:
332 where the discharge device is provided with a movable
auxiliary starting electrode, the electrode moving mechanism
circuit including an automatically operated switch for
controlling the operation of the electrode moving mechanism.
SEE OR SEARCH CLASS:
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses, especially subclass 34,
35, 58, 61, 62, 63, 64, subclass 68 and indented subclasses,
and subclass 114 and indented subclasses, for electric
discharge devices of the consumable electrode type (carbon
arc lamp, et cetera) and the systems therefor where the
discharge device is provided with electrically operated means
for bringing the electrodes into contact with each other and
for separating the electrodes and having automatically
operated means for opening the circuit of the electrically
operated electrode moving mechanism when the discharge is
initiated.
Subclass:
334
This subclass is indented under subclass 326. Systems
wherein the discharge device is provided with two or more
cathodes and/or two or more anodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42 where the discharge device has structurally combined
therewith an inductance which is connected between either a
plurality of anodes, or a plurality of cathodes.
60 where the discharge device includes an auxiliary starting
electrode and an impedance is structurally combined with the
discharge device structure and connected to the auxiliary
starting electrode.
84.61 for plural cathode or anode tubes utilized in storing
systems.
109 where the discharge device is provided with an auxiliary
electrode, the auxiliary electrode being included in a
circuit which controls the operation of a gas or vapor
replenishing means for the discharge device.
124 where the discharge device includes an auxiliary
electrode which controls the operation of a shunt circuit
closing means or a cutout means for isolating the discharge
device from the supply source when the discharge fails to
operate properly.
145 and subclass 147 and indented subclasses, where the
discharge device is supplied with polyphase alternating
current.
167 and indented subclasses, where there are a plurality of
sources of current supply for the discharge device.
202 and indented subclasses, where the supply circuit
includes an electric space discharge device.
233 and indented subclasses, where the supply circuit
includes a condenser.
260 and indented subclasses, where the source of supply is a
pulsating and/or alternating current.
330 and indented subclasses, where the discharge device is
provided with an auxiliary starting electrode which is
brought into contact with one of the principal electrodes to
initiate the discharge.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 306 and the
subclasses specified in the Notes thereto for the structure
of discharge devices which have a plurality of cathodes or a
plurality of anodes.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 36 and indented subclasses, for
consumable electrode discharge devices provided with a
plurality of cathodes, or anodes, and the systems therefor.
377, Electrical Pulse Counters, Pulse Dividers, or Shift
Registers: Circuits and Systems, subclass 100 for counters
using multicathode gas discharge tubes.
Subclass:
335
This subclass is indented under subclass 334. Systems
wherein the discharge device is provided with at least one
principal anode and at least one principal cathode and an
auxiliary discharge electrode with the auxiliary electrode
connected in the circuit so that the discharge is initiated
between the auxiliary electrode and one of the principal
electrodes, the auxiliary discharge conditioning the
discharge space between the principal electrodes so that a
discharge between the principal electrodes can be
established.
SEE OR SEARCH THIS CLASS, SUBCLASS:
60 where the discharge device is structurally combined with
a circuit impedance which is connected between the auxiliary
starting and one of the principal electrodes.
168 where the auxiliary starting electrode is supplied with
current from a different source of current than that which
supplies the current to the principal electrodes.
194 and indented subclasses, where the auxiliary starting
electrode is used as a discharge control electrode, and the
auxiliary starting electrode circuit includes phase shifting
means to shift the phase of the current in the auxiliary
electrode circuit with respect to the current in the
principal electrode circuit.
203 and indented subclass, where the auxiliary starting
electrode circuit includes a discharge device or rectifier.
234 where the auxiliary starting electrode circuit includes
a condenser.
261 and indented subclasses, where the discharge device is
supplied with pulsating or alternating current.
330 and indented subclasses, where the auxiliary starting
electrode is designed to physically contact one of the
principal electrodes to initiate the discharge.
337 for systems wherein one or more of the plural cathodes
or of the plural anodes has a potential impressed thereon
which is of a different magnitude from the potential
impressed upon another electrode of the same type.
349 and indented subclasses, for other systems provided with
discharge control means for controlling the initiation of the
discharge in the discharge device. These subclasses include
systems wherein the discharge device is provided with an
auxiliary electrode placed adjacent one of the principal
electrodes, usually the cathode, and having the auxiliary
electrode connected to a source of potential so that an
electrostatic field is created near the principal electrode
to facilitate initiating the discharge, the electrostatic
electrode being arranged with respect to the principal
electrode so that there is no flow of discharge current to
the electrostatic electrode. In such systems, the discharge
electrodes are usually enclosed in a vitreous envelope, and
the auxiliary control electrode is placed on the outside of
the envelope near the cathode.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 592, 594, 595+, and
601+, for discharge devices which are provided with an
envelope containing an atmosphere of gas or vapor and which
have an atmosphere of gas or vapor and which have an
auxiliary starting electrode, and subclasses 306+ and the
subclasses specified in the Notes thereto for other discharge
devices which have an auxiliary starting electrode.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 34, for consumable electrode discharge
device systems, the consumable electrode discharge device
being provided with an auxiliary starting electrode.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class, "Electronic
Tube Systems," in the class definition of Class 323.
Subclass:
336
This subclass is indented under subclass 335. Systems
wherein the discharge device is provided with two or more
starting electrodes.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 599, 600,
for discharge devices, per se, which have an envelope
containing a gas or vapor and a plurality of auxiliary
starting electrodes, and subclass 308 and the subclasses
specified in the Notes thereto for other discharge devices
which have a plurality of auxiliary starting electrodes.
Subclass:
337
This subclass is indented under subclass 334. Systems having
the source of current supply connected to two or more similar
electrodes, such as two or more anodes, the system including
means to apply a different potential to one of the electrodes
from that applied to another of the electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
167 for systems which include two or more sources of current
supply and a plural cathode and/or anode discharge device
load, one of the sources of current supply being connected to
one of the similar electrodes, such as, an anode, and the
other source of current supply being connected to the other
similar electrode, such as the other anode; note especially
subclasses 168, and 169.1+, where the two sources of current
supply are of diverse character.
168 see the reference to subclass 167. 169.1, see the
reference to subclass 167. 335, and the subclasses referred
to in the notes to the definition of that subclass where one
of the electrodes is an auxiliary starting electrode.
Subclass:
338
This subclass is indented under subclass 334. Systems
wherein an electromagnet is placed adjacent the
interelectrode discharge space so that the space discharge is
influenced by the magnetic flux.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42 for discharge devices having structurally combined
therewith an inductive impedance which is connected between
either a plurality of anodes or a plurality of cathodes of
the discharge device, the discharge device being provided
with an electromagnet for influencing the discharge between
the electrodes.
343 and subclass 344 and indented subclasses, and the
subclasses specified in the notes to the definition of those
subclasses, for other systems wherein the discharge device
load is provided with an electromagnet for influencing the
discharge.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 153 for the
structure of discharge devices, per se, which are provided
with an electromagnet. See especially subclass 162 where the
discharge device is provided with an envelope and has three
or more electrodes.
Subclass:
339
This subclass is indented under subclass 334. Systems
wherein the electric discharge load device is provided with a
discharge controlling means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
148 for this subject matter where the discharge device is
supplied with polyphase alternating current.
335 and indented subclass, for systems wherein the discharge
controlling means is an auxiliary starting electrode.
338 for this subject matter where the discharge control
means is an electromagnet.
349 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses for other
systems wherein the discharge device load is provided with a
discharge control means.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 298, 302,
and 303 for the structure of discharge devices, per se, which
have a plurality of anodes or a plurality of cathodes and a
discharge control grid.
Subclass:
340
This subclass is indented under subclass 326. Systems having
means in the cathode-anode circuit for interrupting or
extinguishing the flow of electric discharge current between
the cathode and anode.
(1) Note. The search should be continued in the appropriate
subclasses above for systems where the space discharge device
is provided with current of a particular character and means
are provided for interrupting the flow of interelectrode
discharge current. For example, search subclass 261 and
indented subclasses, subclass 268 and indented subclasses,
where the discharge device is supplied with alternating
current and a discharge control means is provided for the
discharge device, the discharge being extinguished by the
alternating current in each cycle of the alternating current
wave, and the discharge controlling means being operative
either to permit the discharge to be formed or to suppress
the discharge on the succeeding cycle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
261 see (1) Note. above.
268 see (1) Note. above.
Subclass:
341
This subclass is indented under subclass 326. Systems
wherein the discharge device is provided with two or more
discharge controlling means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
148 338, 339, where the load device is a plural cathode
and/or anode load device, and a discharge control device is
included in each of the plurality of cathode-anode circuits;
subclass 148 where the discharge device is supplied with
polyphase alternating current and subclass 338 where the
discharge control means is an electromagnet.
336 where the discharge device is provided with a plurality
of auxiliary starting electrodes.
338 see the reference to subclass 148 above.
339 see the reference to subclass 148 above.
349 and indented subclasses and the subclasses specified in
the notes to the definitions of those subclasses for other
systems wherein the load device is a discharge control
discharge device.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 153 for the
structure of discharge devices, per se, which are provided
with means for generating a magnetic field and which also
have a discharge control electrode; subclass 154 for
discharge devices which are provided with means for
generating a plurality of magnetic fields; subclasses 296+
and the subclasses specified in the Notes thereto for the
structure of discharge devices which are provided with a
plurality of control grids, and subclass 308 for other
discharge devices which are provided with two or more
discharge controlling means.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class, "Electronic
Tube Systems," in the class definition of Class 323.
Subclass:
342
This subclass is indented under subclass 341. Systems
wherein the discharge device is provided with diverse types
of discharge controlling means.
(1) Note. Auxiliary starting electrodes, electromagnets,
electrostatic control devices (control grids) are each
considered to be of a diverse type with respect to each
other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
335 and indented subclass, for this subject matter where one
of the control means is an auxiliary starting electrode.
338 where the discharge device is a plural cathode and/or
anode discharge device and electromagnetic means are provided
for influencing the discharge.
339 where the discharge device is a plural cathode and/or
anode discharge device and the discharge device is provided
with discharge control means.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, appropriate
subclasses, for the structure of discharge devices, per se,
which are provided with diverse types of discharge
controlling means. See the reference to Class 313 in the
Notes to subclass 341 above for the particular subclasses to
be searched.
Subclass:
343
This subclass is indented under subclass 341. Systems
wherein two or more electromagnets are placed adjacent the
inter-electrode discharge space so that space discharge is
influenced by the magnetic flux of the electromagnets.
(1) Note. Electromagnetic devices which have two or more
separate coils on a common core are considered to be a
plurality of electromagnets in so far as classification in
this subclass is concerned.
SEE OR SEARCH THIS CLASS, SUBCLASS:
344 and indented subclasses and the subclasses specified in
the notes to the definitions of those subclasses, for other
systems wherein the load device is a discharge device having
a discharge influencing electromagnet associated therewith.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 154 for
the structure of discharge devices, per se, which are
provided with means for generating a plurality of
electromagnetic fields for influencing the discharge.
Subclass:
344
This subclass is indented under subclass 326. Systems
wherein an electromagnet is placed adjacent the
interelectrode discharge space so that the space discharge is
influenced by the magnetic flux.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42 for discharge devices having structurally combined
therewith an inductive impedance which is connected between
either a plurality of anodes or a plurality of cathodes of
the discharge device, the discharge device being provided
with an electromagnet for influencing the discharge between
the electrodes.
236 for this subject matter where there is a condenser in
the supply circuit of the discharge device.
267 for this subject matter where the discharge device is
supplied with pulsating or alternating current.
338 for this subject matter where the discharge device is
provided with two or more cathodes and/or two or more
anodes.
342 for this subject matter where the discharge device is
provided with a plurality of different control means, one of
which is an electromagnet.
343 for this subject matter where there are a plurality of
electromagnets for influencing the discharge.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 153 for the
structure of lamps and discharge devices which are provided
with an electromagnet.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 20, for consumable electrode discharge
devices having a discharge deflecting electromagnet, and the
circuits therefor.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class, "Electronic
Tube Systems," in the class definition of Class 323.
373, Industrial Electric Heating Furnaces, subclass 64 and
107, for electric furnaces provided with means to deflect the
arc from its normal path.
Subclass:
345
This subclass is indented under subclass 344. Systems,
wherein the discharge device has the discharge electrodes in
the form of elongated members, usually in rod or wire form,
the electrodes being either parallel or inclined with respect
to each other, and the discharge being formed between the
electrodes at one point and moved along the electrodes by
means of the magnetic field.
SEE OR SEARCH THIS CLASS, SUBCLASS:
249 for systems under the class definition wherein the
discharge device is provided with wire or rod-like electrodes
which are arranged in physical parallel relation with respect
to each other, the source of supply current being alternating
current and designed to establish a discharge at the
antinodes of the potential wave, the system including means
to cause the antinodes of potential, and therefore the
electric discharge, to traverse the electrodes along their
length.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 153 for the
structure of the discharge device, per se, for use in the
systems in this subclass of Class 315.
Subclass:
346
This subclass is indented under subclass 344. Systems
provided with means to supply two or more currents to the
electromagnet coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
350 and indented subclass, and the subclasses specified in
the notes to the definitions thereof for other systems having
a discharge control discharge device load device and provided
with means to apply two or more currents or potentials to the
discharge control means.
Subclass:
347
This subclass is indented under subclass 344. Systems
wherein the electric discharge device and the electromagnet
coil are connected together in electrical series relation.
Subclass:
348
This subclass is indented under subclass 344. Systems
wherein the electromagnet is energized by pulsating or
alternating current.
SEE OR SEARCH THIS CLASS, SUBCLASS:
267 for this subject matter where the load device is
supplied with pulsating or alternating current.
345 for this subject matter where the discharge device is
formed with a plurality of parallel rail or rod-like
electrodes.
Subclass:
349
This subclass is indented under subclass 326. Systems
wherein the electric discharge load device is provided with a
discharge controlling means, and the system includes means
for controlling the electric current and/or potential
supplied to the control means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
43 and indented subclass, subclasses 61, 63, for devices
which include a discharge control discharge device and an
electrical circuit element structurally combined in a unitary
device.
157 where the control circuit includes a radiant energy
responsive device (photocell).
194 and indented subclasses, where the control circuit
includes phase shifting means for shifting the phase of the
current and/or voltage in the control circuit with respect to
the current in the cathode-anode circuit of the discharge
device.
237 and indented subclass, where there is a condenser in the
supply circuit of the discharge device load.
268 and indented subclasses, where the source of supply
current for the discharge device load is pulsating or
alternating current.
325 and the subclasses specified in the notes to the
definition of that subclass, for systems under the class
definition having a plurality of discharge control discharge
device load devices in the system.
335 and indented subclass, and the subclasses specified in
the notes to the definition of those subclasses for systems
under the class definition provided with a discharge device
load device which is provided with an auxiliary starting
electrode for controlling the discharge.
341 and indented subclasses, for systems under the class
definition wherein the load device is a discharge device
provided with a plurality of discharge controlling means
(such as a grid electrode and an electromagnet).
344 and indented subclasses and the subclasses specified in
the notes to the definition of those subclasses for systems
under the class definition wherein the load device is a
discharge device provided with an electromagnet for
influencing the discharge.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 308 and
the subclasses specified in the Notes thereto for the
structure of discharge devices, per se, which have a
discharge controlling electrode.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 35, for consumable electrode discharge
device systems wherein the discharge device includes an
auxiliary electrode placed adjacent to the discharge space,
the auxiliary electrode circuit controlling the operation of
the electrode feeding mechanism of the discharge device.
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class, "Electronic
Tube Systems," in the class definition of Class 323.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for
miscellaneous space discharge device systems not otherwise
classified wherein the space discharge device is provided
with a discharge controlling means.
363, Electric Power Conversion Systems, 111, and the
subclasses mentioned in the notes thereto, for electronic
tube conversion systems wherein the electronic tube is
provided with a discharge control means (e.g., grid) and the
potential applied to the control means is controlled. Some
of the systems of Class 363 are closely analogous to the
systems of this subclass. See section VI, 7 of the class
definition of Class 363 for the line between Class 315 and
Class 363.
378, X-Ray or Gamma Ray Systems or Devices, subclass 113 for
X-ray tube systems including a space discharge control
element.
Subclass:
350
This subclass is indented under subclass 349. Systems
provided with means to apply two or more potentials to the
discharge control means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
270 and indented subclass, for this subject matter where the
discharge device is supplied with pulsating or alternating
current.
346 for systems under the class definition wherein the
control means for the discharge device is an electromagnet
which is supplied with two or more currents.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class, "Electronic
Tube Systems," in the class definition of Class 323.
Subclass:
351
This subclass is indented under subclass 350. Systems
provided with means to apply a pulsating and an alternating
current and/or potential, or two or more different pulsating
or alternating currents and/or potentials to the discharge
control means.
(1) Note. In systems wherein a transformer is provided
which has its secondary connected to the discharge control
circuits, two or more primaries each energized by pulsating
or alternating current and having the secondary connected to
the control circuit, the patent is placed in subclass 354
below and not in this subclass. Where two or more
transformers are provided, and the secondary windings are
connected either in series or parallel with the resultant
potential impressed upon the control means, the patent is
placed in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for this subject matter where the discharge device is
supplied with pulsating or alternating current.
354 see (1) Note. above.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class, "Electronic
Tube Systems," in the class definition of Class 323.
Subclass:
352
This subclass is indented under subclass 349. Systems having
a rectifier and/or an electric discharge device connected in
the control circuit of the discharge device.
(1) Note. Where the system includes a plurality of
discharge devices, one of which is connected in the control
circuit of the discharge device which is the load in the
circuit, the patent is classified as a plural load device
system in the subclasses above where the discharge in the
control circuit is claimed as a discharge device whose
operation depends upon gas or vapor ionization even though
the system is claimed as only having one ultimate load
device. Where the controlling discharge device is claimed
merely as a discharge device even though it is disclosed as a
gaseous ionization discharge device, the system is not
considered to be a plural load device is claimed merely as a
discharge device system for the purpose of classification.
SEE OR SEARCH THIS CLASS, SUBCLASS:
157 for this subject matter where the discharge control
discharge device load device is controlled by a radiant
energy responsive device (photocell).
197 198, 199, for this subject matter where the discharge
control circuit includes a discharge control discharge device
and means for shifting the phase of the pulsating or
alternating current in the control circuit with respect to
the current in the cathode-anode circuit of the load device.
203 and indented subclass, for systems under the class
definition wherein the load device is a discharge device
having an auxiliary starting electrode, and the auxiliary
starting electrode circuit includes an electric discharge
device or rectifier.
272 for this subject matter where the discharge device load
device is supplied with pulsating or alternating current.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 227 and 291 for electronic tube regulators. See
Lines With Other Classes and Within This Class, "Electronic
Tube Systems," in the class definition of Class 323.
Subclass:
353
This subclass is indented under subclass 352. Systems
provided with a condenser connected in the control circuit of
the discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 and indented subclasses, for condensers in the supply
circuit for this subject matter.
273 where the discharge device is supplied with pulsating or
alternating current.
355 and indented subclass, for other systems under subclass
349 having a condenser in the control circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 364, for miscellaneous condenser systems.
Subclass:
354
This subclass is indented under subclass 349. Systems having
a transformer connected in the control circuit of the
discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
262 where the load device is a discharge device having an
auxiliary starting electrode, a transformer being included in
the auxiliary starting electrode circuit.
274 for this subject matter where the discharge device is
supplied with pulsating or alternating current.
276 and indented subclasses, and the subclasses specified in
the notes thereto for transformers in the supply circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 355-363, for miscellaneous transformer systems.
Subclass:
355
This subclass is indented under subclass 349. Systems having
a condenser connected in the control circuit of the discharge
device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 and indented subclasses, for systems having a discharge
device load, the supply circuit including a condenser.
234 for systems wherein the load device is a discharge
device having an auxiliary starting electrode, a condenser
being included in the auxiliary starting electrode circuit.
238 for this subject matter where there is a condenser in
the control circuit of the discharge device and another
condenser in the supply circuit of the discharge device.
273 for this subject matter where the discharge device is
supplied with pulsating or alternating current and there is
also a discharge device or rectifier in the control circuit.
275 for this subject matter where the discharge device is
supplied with pulsating or alternating current.
353 for this subject matter where there is also a discharge
device or rectifier in the control circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 364, for miscellaneous condenser systems.
Subclass:
356
This subclass is indented under subclass 355. Systems having
an inductance connected in the control circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
43 and indented subclass, for devices which include a
discharge control discharge device and an inductance
structurally combined in a unitary device, the inductance
being connected between the control means and one of the
discharge electrodes.
263 for systems having a discharge device load, the
discharge device being provided with an auxiliary starting
electrode, the starting electrode circuit including an
inductance.
289 and indented subclass, and the subclasses specified in
the notes to the definitions of those subclasses, for other
systems which include an inductance in the circuit.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 355-370, for miscellaneous impedance systems
having a reactor and condenser therein.
Subclass:
357
This subclass is indented under subclass 326. Systems
wherein the discharge device is provided with an electrode
which is movable with respect to its cooperating discharge
electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
327 for this subject matter where the electrode is designed
to be moved into contact with another electrode during the
starting period for drawing the discharge when the electrodes
are separated.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 146 for the
structure of discharge devices, per se, which have a movable
electrode.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses, for consumable electrode
discharge devices having means provided for feeding one of
the electrodes toward the other to compensate for the
consumption of the electrode material, and the electrical
systems therefor.
Subclass:
358
This subclass is indented under subclass 326. Systems
wherein the discharge device contains two or more different
gases and/or vapors.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 637, for the
structure of discharge devices, per se, having a confined
atmosphere of two or more gases and/or vapors.
361, Electricity: Electrical Systems and Devices, 171 for
electrical relay systems of the code responsive or secret
type.
Subclass:
359
This subclass is indented under the class definition.
Systems wherein the load device through which the current
passes is formed of a pyroelectric material.
(1) Note. Pyroelectric materials, or second class
conducting materials, have a high electrical resistance at
ordinary temperatures, and low electrical resistance when
heated to a high temperature.
SEE OR SEARCH THIS CLASS, SUBCLASS:
114 and subclass 115 and indented subclass, for systems
having a pyroelectric load device which is provided with an
electric heater for the pyroelectric material, the system
including means to supply electric current to the heater.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 14 for
the structure of pyro-electric type lamps where the lamp is
provided with a heating means for heating the pyroelectric
material, and subclass 315 for the structure of other
pyroelectric lamps.
Subclass:
360
This subclass is indented under the class definition.
Systems provided with a time controlled means for (1)
supplying operating current or potential to the load device
after a predetermined time lapse, or (2) supplying current or
potential to the load device for a predetermined time, or (3)
altering the flow of current or potential to the load device
after a predetermined time, or (4) interrupting the supply of
current or potential to the load device after a predetermined
time lapse.
SEE OR SEARCH THIS CLASS, SUBCLASS:
209 and indented subclasses, for systems wherein a periodic
electric switch is provided in the supply circuit of the load
device.
227 and indented subclasses, for systems wherein a condenser
is connected in the supply circuit of the load device so that
the discharge of the stored electrical energy in the
condenser is applied to the load device, the condenser being
connected in the load device circuit so as to be charged and
discharged periodically.
291 and indented subclasses, for systems provided with means
for regulating the current and/or voltage applied to the load
device.
313 for systems wherein the system includes two or more load
devices and is provided with an electric switch in the supply
circuit of one of the load devices.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 33, for time
controlled electric switches.
378, X-Ray or Gamma Ray Systems or Devices, 96 for X-ray
systems with exposure timer.
Subclass:
361
This subclass is indented under the class definition.
Systems provided with two control means located at different
places in the supply circuit for controlling the supply of
current to the load device, the two of the control means each
being designed to perform the same control functions as that
performed by the other of the two control means, irrespective
of the condition of operation of the other of the two control
means.
(1) Note. This subclass includes systems wherein two
switches are provided in the circuit of the load device, each
of the switches being connected in the circuit so that it can
open or close the circuit of the load device, irrespective of
the position of the other switch. Also, included in this
subclass are systems wherein a single switch opens and closes
the supply circuit to the load device, this switch being
operable by either of two remotely located switches.
(2) Note. This subclass also includes cross references of
patents wherein the control means for the current supply for
the load device is a current regulator, the system being
designed so that the regulation may be effected from two or
more different points.
(3) Note. This subclass does not include systems wherein
two or more control means, such as electric switches, are
connected in the circuit in such a manner that if one of the
control means is in the operated position to deprive the load
device of current, the other control means, even if placed in
the "on" position cannot close the circuit to supply current
to the load device because of the position of operation of
the first control means. For such systems, where the control
means is a regulator, search this class, subclass 299, and
indented subclasses and where the control means is a switch,
search this class, subclass 362.
SEE OR SEARCH THIS CLASS, SUBCLASS:
272 see (3) Note above.
299 see (3) Note above.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnnection Systems, 113
for systems of general application provided with two or more
control means located at different places for controlling the
supply of current or potential to a load device.
Subclass:
362
This subclass is indented under the class definition.
Systems having an electrical circuit maker and/or breaker in
the current supply circuit to the load device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
32 and indented subclasses, and especially subclass 63,
subclass 64, and indented subclasses, 72, 73, subclass 74 and
indented subclass, for devices which include an electric lamp
or discharge device which has structurally combined therewith
an electric switch.
63 see the reference to subclass 32 above.
64 see the reference to subclass 32 above.
72 see the reference to subclass 32 above.
73 see the reference to subclass 32 above.
74 see the reference to subclass 32 above.
76 for this subject matter where the load device system is
combined with the structure of some particular art device,
such as a vehicle, such combinations usually including a
switch operated by some part of the art device, such as for
example, brake pedal in the case of a vehicle.
86 and indented subclass, for systems which include
automatically operating switching means for substituting
another source of current supply for the load device when the
operating source of current supply fails to operate
properly.
88 and indented subclasses, for systems which include
automatically operating switching means for substituting
another load device for the operating load device when the
operating load device fails to operate properly.
100 where the load device is a discharge device provided
with a plurality of cathodes or cathode heaters connected in
series relation with respect to each other, and the series
circuit includes a thermostatic switch.
106 and 107, where the load device is a discharge device
provided with a circuit for supplying current to the cathode
or cathode heater circuit, the supply current for the cathode
or cathode heater including an automatically operated cutout
switch.
116 where the load device is provided with an electric
heater for modifying the temperature of the load device, the
heater circuit including an automatically operated cutout
switch.
119 and indented subclasses, where the system is provided
with an automatically operated switch for closing a shunt
circuit about, or opening the circuit of, the load device
when the load device fails to operate properly.
136 where the system includes a signal, indicator, or alarm
device and the circuit of the signal, indicator, or alarm is
controlled by an electrically operated switch.
159 where the system includes a radiant energy responsive
device (photocell) which controls the operation of an
electric switch in the supply circuit of the load device.
172 and 186, subclass 209 and indented subclasses, where the
supply circuit of the load device includes a periodic
switch.
186 see the reference to subclass 172 above.
191 192 and 193, where the system includes a plurality of
series connected load devices and an electric switch in the
circuit.
192 see the reference to subclass 191 above.
193 see the reference to subclass 191 above.
209 see the reference to subclass 172 above.
240 where the supply circuit of the load device includes a
condenser, and an electric switch is provided to connect the
condenser to the load device.
290 where the supply circuit of the load device includes an
inductance and there is an electric switch in the inductance
circuit.
313 and indented subclasses, and the subclasses specified in
the notes to the definition of those subclasses for plural
load device systems provided with an electric switch in the
circuit.
340 where the load device is an electric discharge device,
and an electric switch is provided in the cathode-anode
circuit of the discharge device.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses, for the structure of electrical circuit makers
and breakers.
307, Electrical Transmission or Interconnection Systems, 112
for miscellaneous electrical systems having a switch in the
current supply circuit.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 131, and the subclasses referred to in
the notes to the definition of that subclass, for consumable
electrode discharge devices provided with switches, and the
systems therefor, which include electric switches.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, appropriate subclasses for
electromagnetically operated circuit makers and breakers.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for electrothermal and
thermally actuated switches.
362, Illumination, appropriate subclasses, for illumination
devices and fixtures having an electric light source and
provided with an electric switch for controlling the flow of
current to the electric light, note especially subclass 36,
for vehicles with electric lighting devices to illuminate the
direction toward which the vehicle is turned and lighted only
during the turning of the vehicle, subclasses 21+, for
lanterns having electric light sources which are provided
with mechanism responsive to dangerous conditions for
interrupting the supply of current to the lamp, subclasses
285+ for lanterns of the projector type with adjustable light
focusing means, and having the light focusing device coupled
with electric switch means to control the current supply to
the lamp, subclasses 394+ for lamp supports which normally
hold the light in an inaccessible position and which may be
adjusted so that the lamp may be reached for trimming,
cleaning, or repairing, and which are provided with an
electric switch, the switch usually being arranged so as to
connect the lamp with the current supply circuit only when
the lamp has reached its inaccessible or operating position,
and subclasses 394+ and indented subclass, for illuminating
fixtures provided with an electric switch for the light
source.
Subclass:
363
This subclass is indented under the class definition.
Systems which are not provided for in any of the preceding
subclasses of this class.
Subclass:
364
This subclass is indented under subclass 1. Subject matter
which includes a cathode-ray tube including a cathode-ray
beam source, cathode-ray deflection means operably connected
with the cathode tube and an electrical circuit connected to
the deflection means to deliver, when energized, voltage or
current to the deflection means to move the cathode-ray beam
from one position to another within the tube and methods
corresponding to the above apparatus.
(1) Note. Included in this group of subclasses are
subcombinations which include the deflection means and the
electrical circuit to energize the deflection means when not
elsewhere classified.
(2) Note. The electric circuit connected to the deflection
means, instead of directly causing a cathode-ray to be
deflected may, when acting in conjunction with another
electrical force on a cathode-ray beam cause, by a change of
current or potential, deflection of the cathode-ray beam.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1 for cathode-ray beam tubes wherein the cathode-ray tube is
not the ultimate load in the system.
SEE OR SEARCH CLASS:
250, Radiant Energy, 281 for deflection circuits used in the
ionic separation or analyses of material and subclasses 396+
for deflection circuits to deflect a charged particle beam
used to bombard material or a detector.
313, Electric Lamp and Discharge Devices, 421 for
cathode-ray tubes including deflection means.
324, Electricity: Measuring and Testing, particulary
subclass 121 and 250 for test devices using a cathode-ray
tube.
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, 10 for
cathode-ray tube display systems with selective electrical
control for providing more than two visual outputs.
348, Television, 284, 325+, 377+, 379, 380+, and 805+ for
television systems utilizing a cathode-ray tube.
395, Information Processing System Organization, appropriate
subclasses, and see the search class note in the class
definition of this class (315).
Subclass:
365
This subclass is indented under subclass 364. Subject matter
wherein the cathode-ray tube includes a cathode-ray beam
impenetrable member having at least an area in the shape of a
symbol or a code pulse configuration which permits passage of
the cathode-ray beam through only the area of the member at
that point in the shape of the symbol or the pulse code
configuration and the deflection means causes the cathode-ray
beam to be deflected so the cathode-ray beam can pass through
the area under the control of the electrical circuit and
other character generators not provided for elsewhere.
(1) Note. Class 345, subclasses 17 and 26, includes
character generators which form the symbol on a fluorescent
screen of a cathode-ray tube. However, selective electrical
control must be claimed. Included in Class 345, subclasses
10+ are symbol generators which form a cathode-ray pattern of
the symbol by (1) a claimed raster scan of a cathode-ray beam
synchronized with the control of the cathode-ray beam and by
(2) a claimed line vector generation apparatus synchronized
with the control of the cathode-ray beam. Also included are
animation generators of the cathode-ray tube type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8.51 for code translating systems generally, subclass 9 for
symbol generators of the type found in subclass 365 where
plural cathode-ray tubes are used.
13 for symbol generators of the type found in subclass 365
where plural distinct cathode-rays are utilized within a
cathode-ray tube to form a character.
367 for one or more deflector circuits used in a single beam
cathode-ray tube wherein a digital to analog device is used
to create the deflection current or voltage required to
deflect the cathode-ray beam of the tube.
391 for plural cathode-ray deflection circuits with or
without a cathode-ray beam controlled by the deflection
circuit.
399 for coil type deflection circuits generally.
SEE OR SEARCH CLASS:
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, 10 for
cathode-ray tube display systems with selective electrical
control which may include character generators and/or
animation generators.
Subclass:
366
This subclass is indented under subclass 364. Subject matter
wherein the cathode-ray tube has a fluorescent screen and the
deflection means, when energized through the electrical
circuit, causes the cathode-ray beam, when moving from the
source to the screen, to be deflected at some time parallel
to the cathode-ray screen.
(1) Note. The electrical circuit and the deflection means
can periodically sweep the beam across the screen or just
deflect the beam parallel to the screen.
SEE OR SEARCH THIS CLASS, SUBCLASS:
13.1 for plural ray beam deflection circuits which include a
flat type cathode-ray tube.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 422 for
flat type cathode-ray tubes.
342, Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation), subclass 55, 138,
142+, and 176+ for radar systems and subclasses 350+ for
directive systems which may utilize a flat cathode-ray type
tube and a deflection system to move the cathode-ray beam
parallel to the screen of the tube prior to the beam striking
the screen.
348, Television, 805 which may include a flat cathode-ray
tube.
Subclass:
367
This subclass is indented under subclass 364. Subject matter
wherein the electrical circuit includes means, having an
input responsive to digital signals, to convert the digital
signals into an analog signal, which analog signal is applied
to the deflection means.
(1) Note. The bulk of the patents here have an electrical
multiple output register responsive to digital signals
wherein the multiple outputs are all connected to the
deflection means whereby the sum of the outputs determine the
extent of the deflection of the cathode-ray beam within the
cathode-ray tube.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8.51 for counting circuits responsive to digital pulses
which cause a cathode-ray tube to store in analog fashion the
sum of the pulses.
368.12 for this subject matter in a color convergence
control circuit
SEE OR SEARCH CLASS:
341, Coded Data Generation or Conversion, subclass 155 for
digital-to-analog code convertors in electrical communication
systems.
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, 10 for
cathode-ray tube display systems with selective electrical
control which may include digital-to-analog convertors.
Subclass:
368.11
Including color convergence control:
This subclass is indented under subclass 364. Subject matter
which includes at least two electron beam deflection elements
connected in a circuit which generates a time varying signal
to permit the focusing and scanning of plural electron beams
in the envelope of a cathode-ray tube in one or two
directions at each and every point on a screen of the
cathode-ray tube.
(1) Note. The deflection elements may be either
electrostatic or electromagnetic, and are usually additional
to a deflection arrangement providing for scanning by the
electron beam.
(2) Note. Included in this subclass are combinations which
do not include either a vertical or horizontal deflection
device, but only the claimed statement that the cathode ray
beam deflection circuit is a source for a dynamic convergence
circuit.
(3) Note. Included in this subclass are claimed
subcombinations which state a waveform source energizes the
winding of a convergence electro-magnet.
(4) Note. Included in this subclass is subject matter which
may have only a claimed statement that the convergence
circuit is energized from line or frame frequency
components.
SEE OR SEARCH THIS CLASS, SUBCLASS:
11.5 for color convergence control circuitry for a
cathode-ray tube, having photodetector control.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 412 for
cathode-ray tube structure for plural beam convergence,
absent circuitry.
348, Television, subclass 807 for a color television
receiver having a cathode-ray tube.
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, 418 for
the application of a CRT in control of data presentation.
Subclass:
368.12
Including specified signal storage (e.g., memory, register,
etc.):
This subclass is indented under subclass 368.11. Subject
matter including storage of values for the convergence
control signal for subsequent retrieval.
SEE OR SEARCH THIS CLASS, SUBCLASS:
367 for this subject matter including an analog to digital
signal conversion circuit.
SEE OR SEARCH CLASS:
360, Dynamic Magnetic Information Storage or Retrieval,
appropriate subclasses for dynamic magnetic information
storage not limited to color convergence control.
365, Static Information Storage and Retrieval, appropriate
subclasses for static information storage not limited to
color convergence control, particularly 185.01 for floating
gate memory storage (e.g., flash memory).
369, Dynamic Information Storage or Retrieval, appropriate
subclasses for dynamic information storage not limited to
color convergence control.
Subclass:
368.13
Interpolation:
This subclass is indented under subclass 368.12. Subject
matter wherein a convergence signal has values which lie
between stored discrete values.
(1) Note. The values of the convergence signal are
determined by a proportionate or other fraction of the
interval between the stored values.
Subclass:
368.15
Including electrostatic element (e.g., electrode, lens,
etc.):
This subclass is indented under subclass 368.11. Subject
matter including structure that produces an electrostatic
field which deflects the electron beam.
Subclass:
368.16
Offset apertures in plural sequential electrodes;
This subclass is indented under subclass 368.15. Subject
matter having successive electrodes with apertures so as to
form plural paths for the several beams which are not
parallel with each other or with the axis of travel of the
beam in the tube.
Subclass:
368.17
Including signal delay circuitry:
This subclass is indented under subclass 368.11. Subject
matter including circuitry to shift time relations of two or
more control signals.
(1) Note. Signal phase control circuitry is included in
this subclass.
Subclass:
368.18
Including specified waveform generating circuitry:
This subclass is indented under subclass 368.11. Subject
matter including a circuit arrangement to produce a control
signal having a recited amplitude dependence on time.
Subclass:
368.19
By nonlinear device (e.g., square law device, diode, etc.):
This subclass is indented under subclass 368.18. Subject
matter wherein the convergence control signal is produced by
a circuit having a nonlinear voltage to current
characteristic.
Subclass:
368.21
Parabolic waveform:
This subclass is indented under subclass 368.18. Subject
matter wherein the control signal has a component which is
proportional to the square of the elapsed time.
Subclass:
368.22
By integrating of signal:
This subclass is indented under subclass 368.21. Subject
matter wherein the control signal is produced by integrating
the amplitude of a signal with respect to time.
(1) Note. The signal to be integrated is often a ramp
signal derived from a scanning deflection circuit.
SEE OR SEARCH CLASS:
708, Electrical Computers: Arithmetic Processing and
Calculating, subclass 444 for integration by a digital
computer and subclass 823 for integration by an analog
computer.
Subclass:
368.23
By multiplying of signal:
This subclass is indented under subclass 368.21. Subject
matter wherein the control signal is produced by a circuit
which performs multiplication of two signals.
(1) Note. The two signals are often two representations of
a single signal.
(2) Note. The signal to be multiplied is often a ramp
signal derived from a scanning deflection circuit.
Subclass:
368.24
Static convergence feature:
This subclass is indented under subclass 368.11. Subject
matter further including a circuit or element providing an
additional constant electric field or magnetic flux which is
combined with the time varying field to form the focussing
field for convergence.
Subclass:
368.25
Including core or winding structure:
This subclass is indented under subclass 368.11. Subject
matter including a structural feature of the core or winding
arrangement of the convergence electromagnet.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, for electromagnets, cores, or coils, per
se.
Subclass:
368.26
Adjacent to or integral with deflection winding or housing
structure therefor:
This subclass is indented under subclass 368.25. Subject
matter in which the convergence coil is positioned within or
close to a housing for deflection coils.
Subclass:
368.27
Including particular magnetic field distribution:
This subclass is indented under subclass 368.25. Subject
matter which specifically describes the spatial distribution
of the intensity of the magnetic flux.
Subclass:
368.28
Including plural cores or coils:
This subclass is indented under subclass 368.25. Subject
matter which describes plural distinct magnetic core elements
or electrical conductor windings.
Subclass:
369
This subclass is indented under subclass 364. Subject matter
wherein the cathode-ray tube includes a target, a cathode-
ray beam source, and an electrical circuit. The electrical
circuit includes circuitry connected to the target to correct
or regulate the deflection of the cathode-ray beam through
the deflection means as a function of the beam hitting the
target.
(1) Note. This subclass provides for retrace control due to
impingement of the cathode-ray on a target.
SEE OR SEARCH THIS CLASS, SUBCLASS:
12.1 and 13.1, for cathode-ray tubes with secondary emission
stages and plural cathode-rays, respectively, which may
include means on the target thereof for control of the
deflection circuit.
SEE OR SEARCH CLASS:
358, Facsimile and Static Presentation Processing, subclass
507 for a cathode-ray tube type color television display
having circuitry to sense the ray beam to control or indicate
the position of the beam.
Subclass:
370
This subclass is indented under subclass 364. Subject matter
wherein the cathode-ray tube has a cathode-ray beam source
and (1) the deflection means is placed in a certain manner or
of a configuration to correct or improve the cathode-ray beam
pattern caused by the energized deflection means acting upon
the beam or (2) there is an electrical element or an
electrical network connected to the electrical circuit or the
deflection means to correct or diminish the distortion of the
beam pattern caused by the energized electrical circuit,
deflection means, or the cathode-ray tube.
(1) Note. Included are television circuits which include a
horizontal or vertical deflection circuit whose deflection
waveform is modified in parabolic fashion by another waveform
including the deflection waveform of the other horizontal or
vertical circuit to correct for pin cushion, barrel or
keystone type distortions of the cathode-ray beam pattern.
SEE OR SEARCH THIS CLASS, SUBCLASS:
368 for dynamic color convergence circuits to correct the
focus of the cathode-ray beam dependent upon the vertical or
horizontal deflection circuits.
369 for the correction of the vertical or horizontal
deflection circuit dependent upon the cathode-ray beam
striking a target.
382 for the combination of a deflection circuit to deflect
the cathode-rays of a cathode-ray tube and a circuit
connected to a focus electrode to control the cathode-ray
beam in its movement to the target of the cathode-ray tube.
387 for linearity control circuits utilizing feedback
networks in the cathode-ray tube deflection circuits.
401 for distortion correction circuits utilizing a saturable
magnetic device in the deflection circuit.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, subclass 133 for miscellaneous
sawtooth generation with distortion regulation and subclass
317 for miscellaneous amplitude controlled distortion
compensation.
330, Amplifiers, subclass 149 for amplifiers wherein a hum
noise or distortion bucking signal is introduced into the
amplifier signal channel.
348, Television, subclass 251 and 615 for shading and black
spot correction circuitry.
Subclass:
371
This subclass is indented under subclass 370. Subject matter
wherein the electrical circuit includes a source of a
deflection waveform which is delivered to the deflection
means and the electrical network delivers another waveform or
signal to the electrical circuit or the deflection means to
modulate the deflection waveform so that a composite waveform
is delivered to the deflection means to correct or diminish
some type of distortion received by the energized electrical
circuit, deflection means, or the cathode-ray tube.
Subclass:
372
This subclass is indented under subclass 364. Subject matter
wherein the cathode-ray tube includes a cathode-ray beam
source and a plurality of spaced targets to receive the
cathode-ray beam under the control of the deflection means
when the cathode-ray tube and its deflection means are
energized.
(1) Note. The term "target" includes anodes, collectors,
and electrodes.
(2) Note. Under this group, no fluorescent targets are
included. For color fluorescent targets are include. For
color fluorescent screens wherein phosphors emit various
colors when energized, see subclass 375.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3 for a cathode-ray tube having plural targets combined with
an integral circuit element.
8.51 for pulse counting, storing, or a code translating
system having a plural target cathode-ray tube and means to
deflect a cathode-ray beam within the tube from one to
another target.
9 for cathode-ray tube systems including plural cathode-ray
tubes, at least one of the tubes having plural targets.
12.1 for a cathode-ray tube circuit including a cathode-ray
tube having plural targets with secondary emissive
properties.
13.1 for a cathode-ray tube circuit including a cathode-ray
tube with plural targets responsive to plural ray beams
formed in the tube.
SEE OR SEARCH CLASS:
178, Telegraphy, 3 for automatic teles:graphic which contain
a cathode-ray tube having plural cathode-ray targets.
313, Electric Lamp and Discharge Devices, subclass 419 for a
cathode-ray tube having plural targets each target when
impacted by the cathode-ray beam transmitting the beam
current to an external circuit.
331, Oscillators, 79 for charged particle beam tubes which
include plural targets and deflection means for moving the
charged particle beam in such a manner as to produce an
oscillatory electrical output.
Subclass:
373
This subclass is indented under subclass 372. Subject matter
wherein the targets are spaced from each other and arranged
peripherally with respect to the cathode-ray beam source.
(1) Note. Included are switching tubes which sequentially
rotate a cathode-ray beam from target to target. The
deflection means may be a rotating electrostatic field or a
combination of a magnetic field and a plurality of electrodes
which cooperate with the cathode-ray beam to cause the beam
to rotate in one direction or to be selectively controlled by
the electrodes to allow the cathode-ray beam to stop in its
rotary movement and strike a specific target.
(2) Note. The magnetic field necessary to obtain beam
deflection in certain of the radial switching tubes may or
may not be claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.51 for distributed parameter resonator type magnetrons
having a plurality of electrodes peripherally arranged around
the cathode-ray beam emitting electrode.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 157 for magnetic
type discharge devices with a plurality of electrodes
arranged concentrically about a cathode in the discharge
device.
Subclass:
374
This subclass is indented under subclass 372. Subject matter
wherein the targets have flat cathode-ray beam receiving
surfaces and the ray receiving surfaces are all arranged in a
single plane.
(1) Note. Included herein are switching tube circuits which
may or may not be sequentially operated from target to
target.
Subclass:
375
This subclass is indented under subclass 364. Subject matter
wherein the cathode-ray tube includes a cathode-ray beam
source and a fluorescent screen formed of plural phosphor
materials, each material being capable of emitting a
different color of light when struck by the cathode-ray beam
and the electrical circuit connected to the deflection means,
acting alone or in combination with focusing means or phasing
means, has circuitry to cause the cathode-ray beam, when
present, to impinge selectively on one or more phosphor
materials.
(1) Note. Switching circuits which rely on secondary
emission to excite the various phosphors of a color to be are
found in subclasses 10+ of this class.
(2) Note. See subclass 369 for deflection circuits which
select the appropriate phosphor in a color tube and which
also control the deflections of the cathode-ray beam striking
a target.
(3) Note. The deflection means for the most part is the
post deflection type. However, some systems utilize a raster
type deflection means in combination with a mask or focus
screen.
SEE OR SEARCH THIS CLASS, SUBCLASS:
10 for a light detector system responsive to the light
emitted from a screen of a colored cathode-ray tube, which
system corrects its direction of the rays hitting the screen
through the deflection system associated with the tube.
13 for cathode-ray tube circuits which include plural
cathode-ray beam tubes and wherein the plural beams may be
arranged to excite a plurality of separate, distinct color
phosphors.
368 for cathode-ray tube deflection circuits which include a
color convergence control circuit and which have a plural
phosphor target.
369 for cathode-ray tube deflection circuits which include a
target which controls the deflection of a cathode-ray beam.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 486.1, for fluorescent or
phosphorescent devices having plural luminescent materials.
313, Electric Lamp and Discharge Devices, 399 for color
cathode-ray tubes with secondary emissive electrodes, 402+
for color shadow masks per se or in combination with a color
cathode-ray tube, 426+ for plural cathode-ray deflection
means, and 429+ for post deflection electrode grid
arrangements.
348, Television, subclass 810 for a plural phosphor
cathode-ray tube color television system including deflection
circuits to direct the ray beam to the proper phosphor of the
tube.
Subclass:
376
This subclass is indented under subclass 375. Subject matter
wherein the deflection means is a plural electrostatic
electrode grid system separate from the screen, and the
cathode-ray beam, when present, passes through the electrode
system so that the electrical circuit, when energized, places
different voltages on the individual electrodes to
electrically move the cathode-ray beams to strike one or more
of the phosphor materials at any given time.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 461 for
cathode-ray color screens, per se, or claimed as a part of a
cathode-ray tube.
348, Television, subclass 815 for a plural phosphor
cathode-ray tube television system including an auxiliary
deflection circuit located near the plural phosphors to
select the proper color phosphors of the tube.
Subclass:
377
This subclass is indented under subclass 364. Subject matter
wherein the cathode-ray tube includes a cathode-ray beam
source, fluorescent target, and a marker circuit whereby the
cathode-ray beam is caused to produce a periodically
recurring indication pattern, or marker on the fluorescent
target by the effect of the marker circuit on the cathode-ray
beam, when the marker circuit is energized.
(1) Note. This subclass provides for markers caused by
intensity control of the cathode-ray beam when distinctly
claimed as a marker. For intensity control in general, see
subclasses 383+.
(2) Note. Included in this subclass are cathode-ray tube
marker circuitry subcombinations with energization means
connected thereto which are connected to deflection means to
give a pulse input to the deflection means but wherein the
deflection means is not distinctly claimed.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, 600 for devices
determining impedance, admittance and related quantities
which may employ a marker signal generator.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for electron
space discharge devices having a particular wave output with
a marker pulse.
342, Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation), subclass 138, 142+
and 182+ for echo type communication systems which utilize a
cathode-ray tube including a marker circuit.
348, Television, subclass 601 for television systems which
include circuitry to generate and display a marker on a
cathode-ray tube.
356, Optics: Measuring and Testing, 3 for light type radar
systems which may have electronic markers on cathode-ray
radar displays.
367, Communications, Electrical: Acoustic Wave Systems and
Devices, subclass 113 for sonar devices which have a
cathode-ray display having an electronic marker.
Subclass:
378
This subclass is indented under subclass 364. Subject matter
wherein the cathode-ray tube includes a cathode-ray beam
source and a fluorescent target to receive the cathode-ray
beam and the deflection means includes (1) two deflection
means orthoepically positioned with respect to each other and
operably connected to the cathode-ray tube, each deflection
means having an electrical circuit including a periodic
waveform generator, the two waveforms being out of phase with
respect to each other by ninety degrees to cause both
deflection means to act simultaneously upon the cathode-ray
beam to form a circular, spiral, or radial trace on the
target or (2) a deflection means connected to the electrical
circuit to cause the cathode-ray beam to strike the target in
a radial manner at various angular degrees about a point on
the target or (3) deflection means including a combination of
mechanical and electrical means to cause the cathode-ray beam
to describe a circular trace on the fluorescent target when
the cathode-ray beam source and deflection circuitry are
energized.
(1) Note. Included are circular, spiral, and sector sweep
circuits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
372 for plural target cathode-ray tubes which may utilize a
circular, spiral, or radial sweep system to control the
cathode-ray beam of the tube.
SEE OR SEARCH CLASS:
342, Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation), 176 for radar
systems having a cathode-ray tube readout which may use a
circular, spiral, or radial deflection of the cathode-ray
beam of the tube.
367, Communications, Electrical: Acoustic Wave Systems and
Devices, subclass 113 for compressional wave echo location
systems having a cathode-ray tube readout which uses a
circular, spiral, or radial deflection of the cathode-ray
beam of the tube.
Subclass:
379
This subclass is indented under subclass 364. Subject matter
wherein the cathode-ray tube has associated with it (1)
circuitry for the regulation of the energization of the
cathode-ray tube, (2) circuitry for the regulation of the
cathode-ray beam current, density, or velocity in the tube,
(3) circuitry for focusing the cathode-ray beam in the tube,
or (4) circuitry under the control of the electrical circuit
or the deflection means for controlling the cathode-ray beam
of the tube.
(1) Note. The term focusing includes the concentration of
an electron beam or the converging or diverging of the rays
of the beam by an electrostatic or magnetic lens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
12.1 for cathode-ray tube circuits which may include
regulation of secondary emission in a cathode-ray tube.
13.1 for cathode-ray tube circuits which may include
regulation of the concentration of a plurality of cathode-ray
beams.
368 for cathode-ray tube convergence circuits for
concentration of a plurality of cathode-ray beams, e.g., in
color cathode-ray tubes.
369 for cathode-ray tube deflection circuits wherein the
target controls deflection of the cathode-ray beam.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, 530 for tubes with a particular
source of power or bias voltage and subclass 549 for
miscellaneous circuits with hum or interaction prevention
means.
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, 20 for
data responsive selective intensity control in connection
with driving a cathode-ray tube.
348, Television, 284, 325+, 377+, 379, 380+, and 805+ for
regulation means or circuitry to control the scanning
cathode-ray beam of a television system.
Subclass:
380
This subclass is indented under subclass 379. Subject matter
wherein the circuit which controls the deflection means
functions to control the cathode-ray beam of the tube only at
initiation or termination of the cathode-ray beam.
SEE OR SEARCH CLASS:
342, Communications: Directive Radio Wave Systems and Devices
(e.g., Radar, Radio Navigation), 118 for echo systems of the
distance determining pulse type wherein the echo may cause
actuation of a cathode-ray tube display device.
348, Television, subclass 377 for a color television system
having a circuit to control the high voltage anode or the
intensity of the cathode rays of a color television tube to
prevent tube damage or X-ray emission from the tube.
Subclass:
381
This subclass is indented under subclass 380. Subject matter
wherein the cathode-ray tube has a cathode or grid electrode
and the circuitry for the control of the cathode-ray beam at
the initiation or termination of the beam controls the beam
through the grid or cathode of the cathode-ray tube.
Subclass:
382
This subclass is indented under subclass 379. Subject matter
wherein the circuitry associated with the cathode-ray tube
for control of the cathode-ray beam, when present, comprises
circuitry for concentration or diffusing the cathode-ray beam
to produce a desired cathode-ray beam cross sectional shape
and sharpness.
SEE OR SEARCH THIS CLASS, SUBCLASS:
14 for cathode-ray tube circuits with a plurality of
cathode-ray beam concentrating stages.
31 for cathode-ray tube circuits including circuitry for
focusing or concentrating the cathode-ray beam.
SEE OR SEARCH CLASS:
250, Radiant Energy, subclass 311 for electron microscopes
with means for focusing the electron beam on a target
specimen, and 396+ for devices or systems with charged
particle beam focusing.
313, Electric Lamp and Discharge Devices, subclass 414, 442,
and 452+ for cathode-ray tubes which include means for
focusing a cathode-ray beam on the target of the cathode-ray
tube.
Subclass:
382.1
For television:
This subclass is indented under subclass 382. Subject matter
wherein the circuit is adapted for use with cathode-ray tubes
in television systems.
Subclass:
383
This subclass is indented under subclass 379. Subject matter
wherein the brightness of a trace on the screen of the
cathode-ray tube is controlled in such a manner as to
turn-off, turn-on, or vary the brightness of a spot produced
by a cathode-ray on the screen of the cathode-ray tube.
SEE OR SEARCH THIS CLASS, SUBCLASS:
12 for cathode-ray tube circuits which vary the intensity of
a primary cathode-ray beam to influence the rate of secondary
emission in a cathode-ray tube.
377 for cathode-ray tube deflection circuits with marker
means in which the marker may be produced by intensification
of the cathode-ray beam.
SEE OR SEARCH CLASS:
342, Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation), 107, 133, 139+, and
146 for pulse type distance and direction determination
systems of the radar type wherein the display may be produced
by intensity modulation of the cathode-ray beam in the
system.
Subclass:
384
This subclass is indented under subclass 383. Subject matter
in which the cathode-ray is turned-off during normal
operation of the cathode-ray tube.
(1) Note. Subject matter in which a cathode-ray is
turned-on or turned-off by deflecting the cathode-ray to a
portion of the cathode-ray tube where a trace will not form
due to lack of a phosphor material is excluded from this
subclass and may be found in subclass 379 for broad control
of a cathode-ray.
SEE OR SEARCH CLASS:
348, Television, 634 for the blanking of the cathode-ray
beam of a picture tube in television systems which may also
claim the deflection circuitry for the cathode-ray beam in a
television image signal processing circuitry.
Subclass:
385
This subclass is indented under subclass 383. Subject matter
wherein the cathode-ray is turned on during normal operation
of the cathode-ray tube and a trace appears on the screen of
the cathode-ray tube.
SEE OR SEARCH CLASS:
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, 20 for
data responsive selective intensity control in connection
with driving a cathode-ray tube.
348, Television, subclass 635 for the unblanking of the
cathode-ray beam of a color picture tube which may also
include the deflection circuitry for the cathode-ray beam in
a television processing circuit.
Subclass:
386
This subclass is indented under subclass 383. Subject matter
wherein the deflection means, and the circuit connected
thereto are responsible for a change in the cathode-ray beam
density, current, or velocity which in turn results in
control of the brightness of a trace on the screen or target
of the cathode-ray tube.
Subclass:
387
This subclass is indented under subclass 364. Subject matter
wherein the electrical circuitry connected to the deflection
means includes at least one feedback loop.
(1) Note. Compensation for nonlinearity in the deflection
of the cathode-ray caused by the deflection means or
components of the deflection circuit are included here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
370 for cathode-ray deflection circuits which include
circuitry for distortion, correction or reduction generally.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, subclass 137 for miscellaneous
sawtooth waveform generation with particular feedback and
subclass 590 for miscellaneous circuits with particular
feedback.
330, Amplifiers, 75, appropriate subclasses, for signal
feedbacks in amplifier circuits.
Subclass:
388
This subclass is indented under subclass 387. Subject matter
wherein the circuitry for deflection of the cathode-ray beam
of the cathode-ray tube includes a plurality of feedback
loops.
(1) Note. The plural feedbacks may comprise plural negative
feedback loops, plural positive feedback loops, or combined
positive and negative feedback loops.
Subclass:
389
This subclass is indented under subclass 387. Subject matter
wherein the circuitry includes a feedback loop of the
degenerative type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
388 for plural feedback circuits which may include at least
one negative feedback loop or circuit.
Subclass:
390
This subclass is indented under subclass 389. Subject matter
wherein the circuitry consists only of circuits containing
tube devices and is completely void of all solid state
devices or circuitry.
Subclass:
391
This subclass is indented under subclass 364. Subject matter
wherein the cathode-ray tube includes a cathode-ray beam
source and a target and the deflection circuitry includes
plural, separate, deflection means and each deflection means
has its own electrical circuit whereby the individual
electrical circuits, when energized, cause the cathode-ray
beam, when present, to be deflected by each deflection means
in its passage from the beam source to the target.
SEE OR SEARCH THIS CLASS, SUBCLASS:
17 for ray deflecting means with plural concentrating
accelerating, and/or de-accelerating stages.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 421 for
cathode-ray tubes with beam deflection means; especially
subclasses 426+ for plural beam deflecting means.
348, Television, 284, 325+, and 805+ for television systems
with means for deflecting a cathode-ray beam in plural
directions.
Subclass:
392
This subclass is indented under subclass 391. Subject matter
wherein the target produces a visible trace when hit by a
cathode-ray beam and the deflection means and electrical
circuits electrically connected thereto when energized cause
a plurality of visible indications or traces to be displayed
on the target which will enable simultaneous or sequential
viewing of the displayed indications or traces.
SEE OR SEARCH THIS CLASS, SUBCLASS:
13 for plural displays or traces on the cathode-ray tube
screen produced by plural cathode-rays.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, for display of
plural waveforms and analysis thereof.
Subclass:
393
This subclass is indented under subclass 391. Subject matter
wherein each electrical circuits includes a generator
delivering to its deflection means, a current or voltage
waveform which periodically sweeps the cathode-ray beam
across the target, and both electrical circuits are connected
together to cause both waveforms to sweep the cathode-ray
beam at the same time.
SEE OR SEARCH CLASS:
342, Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation), 142 and 176+ for
radar systems which utilize an indicator having a cathode-ray
beam deflected onto a screen of a cathode-ray tube by means
of synchronized horizontal vertical deflection systems.
348, Television, 805 for cathode-ray tube color television
systems and appropriate subclasses for noncolor television
systems utilizing horizontal and vertical synchronized sweep
circuits.
Subclass:
394
This subclass is indented under subclass 391. Subject matter
wherein the cathode-ray beam is plurally deflected in the
same deflection plane by energization of the deflection
circuits.
(1) Note. The deflection in the same plane may be in the
same or the opposite direction to be proper for this
subclass.
(2) Note. This subclass includes cathode-ray tube circuits
which provide for cathode-ray wobble means in the deflection
circuit in addition to the normal deflection means.
Subclass:
395
This subclass is indented under subclass 364. Subject matter
wherein the electrical circuit connected to the deflection
means causes deflection of the cathode-ray beam, when
present, and includes circuitry for applying a plurality of
voltages or currents to the deflection means to cause the
cathode-ray beam to move in one direction.
(1) Note. In this subclass, the deflection means will
deflect cathode-rays within a cathode-ray tube in only one
direction transverse to the movement of the cathode-rays
within a cathode-ray tube.
(2) Note. The voltages or currents applied to the
deflection means may be of the same type or different in
character. Also the plural currents or voltages may be
delivered simultaneously or alternately to the deflection
means.
(3) Note. Magnetic flyback deflection circuits which induce
a second current sequentially to the deflection means are in
subclasses 405+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
398 for centering of a cathode-ray beam wherein a direct
current or voltage and a waveform current or voltage is
supplied to the deflection means.
SEE OR SEARCH CLASS:
348, Television, 284, 325+, 377+, 379, 380+, and 805+ for
television systems which may include more than one current or
voltage applied to the deflection means.
Subclass:
396
This subclass is indented under subclass 395. Subject matter
wherein the deflection means includes two deflection elements
and the electrical circuit includes means connected to each
of the deflection elements to simultaneously deliver voltage
or current to each of the deflection elements so that the
voltage or current delivered to each deflection element is
one hundred an eighty degrees out of phase with respect to
each other.
(1) Note. Each deflection element may have its own
amplifier or one amplifier may deliver the voltage or current
to both of the deflection elements.
(2) Note. Plural voltages or currents may be applied to
center the cathode-ray beam in addition to the push-pull
deflection voltages.
(3) Note. Solid state and tube amplifiers are both grouped
together in this section.
SEE OR SEARCH CLASS:
330, Amplifiers, subclass 55 for amplifiers with distributed
parameter type coupling having a push-pull circuit
arrangement, and subclass 81 for push- pull circuits
utilizing a feedback type amplifier, subclasses 118+ for
amplifiers which include a push-pull stage.
331, Oscillators, subclass 114 for solid state active
element oscillators which function in a push-pull mode.
Subclass:
397
This subclass is indented under subclass 396. Subject matter
wherein the elements are deflection coils and the means
connected to each of the deflection elements includes a
separate amplifier having an input and an output, connected
through its output to each of the coils and means connected
to the input of each amplifier to cause the current to
increase through one of the coils and its associated
amplifier while at the same time causing the current to
decrease through the other coil and its associated
amplifier.
Subclass:
398
This subclass is indented under subclass 395. Subject matter
wherein the circuit includes an arrangement to provide
current or voltage to the deflecting means, which current or
voltage in use with a cathode-ray tube, will establish the
initial static position at which cathode-rays will strike the
target of a cathode-ray tube.
Subclass:
399
This subclass is indented under subclass 364. Subject matter
wherein the deflection means is a cathode-ray deflection
coil, and the coil, when energized through the electrical
circuit, produces a magnetic field which interacts with the
cathode-ray beam when present in the tube to move the beam
transverse to and simultaneously with the movement of the
beam within the tube.
(1) Note. The art herein is mainly magnetic sweep circuits
which will move a cathode-ray beam within a cathode-ray tube
in one direction only.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 210 for magnetic electron or ion beam
deflection devices, per se.
Subclass:
400
This subclass is indented under subclass 399. Subject matter
wherein the electrical circuit includes a magnetic saturable
element.
(1) Note. A magnetic saturable element for this subclass
includes a saturable reactor, a saturating reactor, or a
saturable transformer.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 401
for nonlinear reactor systems.
323, Electricity: Power Supply or Regulation Systems,
subclass 206, 214, 249, 302, 310, and 329 for voltage
magnitude control systems utilizing saturable reactors.
330, Amplifiers, subclass 8 for amplifier systems wherein
the active element is a saturable core reactor.
336, Inductor Devices, 155 for inductive regulators of the
saturable core type.
Subclass:
401
This subclass is indented under subclass 399. Subject matter
wherein the electrical circuit includes a heat responsive
electrical element.
(1) Note. The deflection circuit may include a sweep
waveform generator, and output amplifier responsive to the
generator, and connections to the deflection coil from the
amplifier. The temperature responsive elements may be in the
generator, amplifier, or in the connections to the deflection
coil.
SEE OR SEARCH CLASS:
330, Amplifiers, subclass 143 for thermally responsive
impedance amplifiers.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, subclass 217 for electron or ion beam
deflecting electromagnets responsive to temperature.
338, Electrical Resistors, subclass 7 for resistors wherein
the resistance value is temperature compensated.
Subclass:
402
This subclass is indented under subclass 399. Subject matter
wherein the electrical circuit includes a voltage dependent
resistor.
(1) Note. A voltage dependent resistor is one which does
not follow Ohm's law and has a negative temperature
coefficient of resistance.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclasses 293-298 for an automatic impedance system
responsive to voltage and/or current.
338, Electrical Resistors, 20 for resistors whose resistance
value is responsive to current or voltage.
Subclass:
403
This subclass is indented under subclass 399. Subject matter
wherein the electrical circuit connected to the deflection
coil includes an amplifier having an input and an output, and
the output of the amplifier is connected to the deflection
coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
378 for circular, spiral or radial sweeps which include a
deflection coil circuit having an amplifier.
379 for amplifiers type deflection coil circuits which
additionally include a control of the cathode-ray beam.
387 for amplifier feedback type deflection coil circuits.
391 for amplifier type deflection coil circuits which
deflect a cathode-ray beam at plural different locations in
the same direction or will deflect the beam in two different
directions simultaneously or sequentially.
395 for amplifier type deflection circuits applying plural
potentials or currents additively or sequentially to a
deflection coil, particularly subclass 397 for push-pull
deflection coil circuits.
Subclass:
404
This subclass is indented under subclass 403. Subject matter
wherein the amplifier is of the electric space discharge
type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
379 for coil deflection circuits using a tube type amplifier
combined with a control of the cathode-ray beam.
387 for feedback deflection coil circuits which include a
tube type amplifier.
391 for plural deflection circuits which include tube type
amplifiers.
395 for coil type deflection circuits which include tube
type amplifiers to deliver plural currents to a deflection
coil, particularly subclass 397 for a push-pull coil type
deflection circuit.
409 for electrostatic type deflection circuits which include
a tube type amplifier.
Subclass:
405
This subclass is indented under subclass 404. Subject matter
wherein the electrical circuit includes a transformer and the
transformer is connected between the output of the amplifier
and the deflection coil.
(1) Note. The transformer may be (1) formed of two windings
where one winding is connected to the output of the amplifier
and the other winding, by induction, delivers current to the
deflection coil, (2) a multiple tapped winding wherein the
output from the amplifier flows through a portion of the
tapped winding to induce a voltage in another portion of the
tapped winding which is connected to the deflection coil, or
(3) have the output current of the amplifier tube passing
through a winding or a portion of the winding of the
transformer and the current through the winding causes a
voltage across the winding which energizes the deflection
coil.
Subclass:
406
This subclass is indented under subclass 405. Subject matter
wherein there is included a diode or additional amplifier to
selectively pass current produced by the induced voltages of
the transformer or deflection coil, the movement of the
current through the diode or amplifier being used as a power
source.
(1) Note. The power source may be to supply the second
anode voltage for a cathode-ray tube or kinescope or to boost
the plate voltage of an amplifier tube.
Subclass:
407
This subclass is indented under subclass 404. Subject matter
wherein the electrical circuit includes a diode or another
amplifier device connected in circuit across the deflection
coil.
(1) Note. The diode or another amplifier may receive
current at the same time the deflection coil does from the
amplifier or the diode or another amplifier may receive
current from the coil when the amplifier is not conducting.
(2) Note. Herein are diodes or amplifiers across the
deflection coil used to damp the energy of oscillation caused
by the shock energization of the coil when the amplifier is
cutoff.
SEE OR SEARCH THIS CLASS, SUBCLASS:
406 for deflection coil circuits which include a power
recovery circuit in the amplifier-transformer deflection coil
circuit and which may include a damper tube connected across
the transformer or deflection coils.
Subclass:
408
This subclass is indented under subclass 399. Subject matter
wherein the electrical circuit connected to the deflection
coil includes a solid state switching device.
(1) Note. A solid-state switching device is a semiconductor
which may be a diode or a multielectrode element such as a
silicon controlled rectifier, a silicon controlled switch, or
a four-layer Shockley diode wherein no amplification of the
current takes place in passing through the switching device
to the deflection coil.
(2) Note. The combination of a deflection circuit including
the switching device and a power supply energized from the
deflection circuit is also in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
379 for deflection circuits combined with an added control
of the cathode-ray beam.
391 for plural cathode-ray deflection circuits which deflect
a cathode-ray beam at plural locations or in a plurality of
directions and wherein any of the circuits may include a
solid state switch.
395 for deflection circuits which apply plural potentials or
currents to the deflection means wherein the circuits may
include a solid state switch in the deflection circuit.
SEE OR SEARCH CLASS:
29, Metal Working, 25.02 for processes and apparatus for
making barrier layer devices.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, 131 for miscellaneous sawtooth or
sweep waveform generation utilizing a solid-state device,
subclasses 438+ for a four or more layer device (e.g., SCR)
gating circuit, and subclasses 493+ for a two electrode
solid-state device gating circuit.
Subclass:
409
This subclass is indented under subclass 364. Subject matter
wherein the deflection means is a pair of electrostatic
plates and the electrical circuit, connected to the pair of
plates, includes a space discharge device, the electrostatic
plates when energized by the circuit causes an electrostatic
field which interacts with the beam to move the beam in a
directing transverse to and simultaneously with the movement
of the beam within the tube.
(1) Note. The term "space discharge device" includes diodes
and tube type amplifiers wherein an electric current flows
between two spaced electrodes in an envelope and the space is
constituted by a gas, vapor, or a vacuum.
SEE OR SEARCH THIS CLASS, SUBCLASS:
364 for deflection circuits including solid state diodes or
amplifying devices connected to the deflection means.
379 for a deflection circuit to deflect a cathode-ray beam
in one or more directions transverse to the movement of the
beam and additional cathode-ray beam control.
391 for plural separate cathode-ray beam deflection circuits
to deflect the cathode-ray beam in one direction or in two
orthogonal directions transverse to the movement of the
cathode-ray beam.
395 for cathode-ray beam deflection circuits which require
plural currents or potentials to operate the deflection
means.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, 131 for miscellaneous sawtooth
waveform generation which may include an electron discharge
device.
330, Amplifiers, appropriate subclasses for electric circuits
which utilize a space discharge amplifying device.
331, Oscillators, 129 for relaxation oscillators using gas
tubes and subclasses 143+ for relaxation oscillators
utilizing a vacuum tube to form a deflection waveform to be
applied to a deflection means of a cathode-ray tube.
Subclass:
410
This subclass is indented under subclass 409. Subject matter
wherein the electrical circuit includes a condenser and
connections between the condenser and the discharge device to
cause the condenser when charged, to discharge through the
discharge device.
(1) Note. The circuits for the most part here are sweep
circuits but the circuits are generally not claimed as having
the condenser periodically charged and discharged.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 and indented subclasses, for systems under the class
definition, which include a condenser and a discharge device
of the gas or vapor ionization type, the condenser being
charged through the gas or vapor tube.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 108 for waveform or waveshape determinative or
pulse producing systems which include a capacitor.
320, Electricity: Battery or Capacitor Charging or
Discharging, 166 for charging or discharging a capacitor,
per se.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, subclass 183 for a pulse generated by
a capacitor discharging through an electron tube.
331, Oscillators, subclass 131 and 152 for relaxation
oscillators using the charging and discharging of a capacitor
to form a deflection waveform to be applied to a cathode-ray
tube deflection means.
Subclass:
411
This subclass is indented under subclass 1. Subject matter
which includes a transformer forming part of a cathode-ray
beam deflection circuit and a circuit powered by the
transformer connected to the transformer, said circuit being
a power source (1) to supply energy to an electrode of a
cathode-ray tube or to an element connected to the
cathode-ray tube or (2) to regulate the energy delivered
through the deflection circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 for a circuit to supply potential or current to a
cathode-ray tube modulating means.
291 for current or voltage regulation of a circuit supplying
potential or current to an electric lamp or discharge device
generally.
364 particularly subclass 406 for a cathode-ray beam
deflection circuit source for a power supply which energizes
one or more cathode-ray tube electrodes.
382 for a circuit to supply potential or current to a
cathode-ray tube focusing or concentrating means.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 277 and 291 for magnetic field control of an
electric space discharge device for controlling the voltage
or current to a load generally.
348, Television, 377, 379, 380+, and 730 for television
systems which may include a deflection circuit energized
power supply to regulate the beam intensity of the picture
tube.
Subclass:
500
HIGH ENERGY PARTICLE ACCELERATOR TUBE:
This subclass is indented under the class definition.
Subject matter comprising a subcombination consisting of a
space discharge tube device combined with a particular
circuit means, wherein the space discharge means includes at
least one electron or other charged particle accelerating
type tube.
(1) Note. In this subclass, the high energy charged
particle has energies in excess of one million electron volts
(eV).
SEE OR SEARCH CLASS:
250, Radiant Energy, 281 for methods and apparatus for the
ionic separation or analysis of material (e.g., mass
spectrometer), subclasses 306+ for methods and apparatus for
the inspection of solids or liquids by charged particles
(e.g., electron microscope), and subclasses 423+ for methods
and apparatus for generating ions.
376, Induced Nuclear Reactions: Processes, Systems, and
Elements, 100 and 190+ for processes and/or devices
utilizing accelerated particles in obtaining thermonuclear
reactions or in treating materials with accelerated neutron
particles.
Subclass:
501
Magnetic field acceleration means:
This subclass is indented under subclass 500. Subject matter
including means for initially accelerating the electrons or
other charged particles by a time-varying magnetic flux and
additional means for providing a cyclically varying electric
field.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 for a low energy particle (i.e., cathode ray) being
accelerated by an inductive field.
Subclass:
502
Cyclotron:
This subclass is indented under subclass 501. Subject matter
wherein the space discharge tube means includes two large,
flat, hollow, semicircular segments of thin metal placed with
their diametric edges closely parallel, the two segments
being given a high frequency alternating potential
difference, producing a rapidly oscillating field in the
space between them, whereby a free charged particle (e.g.,
proton, deuteron, or alpha particle) released in the space is
caused to be pulled first in one direction and then another.
(1) Note. The influence of a magnetic field perpendicular
to the plane of the segments causes the free particles to
follow a circular path (i.e., as in a cyclotron).
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, subclass 62 for
the structure of cyclotrons, and subclasses 359.1+ for
positive ion accelerator structure without having electric
control circuitry.
376, Induced Nuclear Reactions: Processes, Systems, and
Elements, subclass 112 for cyclotron-type acceleration of
nuclei.
Subclass:
503
Synchrotron:
This subclass is indented under subclass 501. Subject matter
wherein the space discharge tube means includes means for
accelerating charged particles (e.g., electrons) in a
circular orbit in an increasing magnetic field, which means
consists of means for generating an alternating electric
field and applying it in synchronism with the orbital motion
of the particles.
SEE OR SEARCH CLASS:
376, Induced Nuclear Reactions: Processes, Systems, and
Elements, 100 for the utilization of a synchrotron-type
device in confining and controlling a plasma to yield
thermonuclear reactions.
Subclass:
504
Betatron:
This subclass is indented under subclass 501. Subject matter
wherein the space discharge tube means includes a particle
accelerating means comprising a device in which the circular
orbit of the accelerated particles (e.g., electrons) has a
constant radius, the particles being accelerated by a rapidly
changing magnetic field.
SEE OR SEARCH CLASS:
376, Induced Nuclear Reactions: Processes, Systems, and
Elements, 100 for the utilization of a betatron-type device
in confining and controlling a plasma to yield thermonuclear
reactions.
Subclass:
505
Linear accelerator (Linac):
This subclass is indented under subclass 501. Subject matter
wherein the electrons or other charged particles are
accelerated along a straight line.
(1) Note. These include magnetic induction type
accelerators and all types of "Linac" accelerators (radio
frequency quadrupole, RFQ; drift tube linac, DTL; coupled
cavity linac, CCL; and side coupled linac, SCL).
Subclass:
506
Electrostatic accelerator means:
This subclass is indented under subclass 500. Subject matter
wherein the electrons or other charged particles are
accelerated by a change of electric field without magnetic
influence.
Subclass:
507
With injection or extraction means:
This subclass is indented under subclass 500. Subject matter
including (a) means combined with a source for introducing
the electrons or other charged particles into a path or (b)
means for ejecting the electrons or other charged particles
after desired energy levels have been obtained.
SEE OR SEARCH CLASS:
250, Radiant Energy, 423 for methods and apparatus for
generating ions.
Information Products Division -- Contacts
Questions regarding this report should be directed to:
U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231
tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov
Last Modified: 6 October 2000