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.
SECTION II - 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.
SECTION III - SUBCLASS REFERENCES TO THE CURRENT CLASS
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.
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).
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.
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.
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.
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).
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.
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.
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.
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.
Gas Separation: Apparatus,
subclasses 80+ for electrostatic precipitators having voltage
supply means or circuitry for applying electrical potential thereto.
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
subclasses 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.
Chemistry: Electrical and Wave Energy,
subclasses 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.
Electric Heating,
subclasses 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.
Radiant Energy, is the generic class for electric discharge systems. In
this class,
subclasses 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.
Prime-Mover Dynamo Plants,
subclasses 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.")
Electrical Transmission or Interconnection Systems,
subclasses 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.")
Electric Lamp and Discharge Devices, appropriate subclasses for the structure of electric lamps
and discharge devices, per se. See
subclasses 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.")
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.")
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.
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.")
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.")
Electricity: Power Supply or Regulation Systems,
subclasses 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.")
Electricity: Measuring and Testing,
subclasses 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.)
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.
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.
Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for thermal switches which
are combined with space discharge devices.
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 amp 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).
Computer Graphics Processing and Selective Visual
Display Systems, appropriate subclasses for selective control of
data presentation on a display device, especially subclasses 74.1-75.2
for display elements arranged in matrix having cathodoluminescent
type.
Electricity: Electrical Systems and Devices,
subclasses 247+ for the detonation of an explosive charge. (Lines
With Other Classes and Within This Class, "Space Discharge
Igniters.")
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.
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
subclasses 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.
Electric Power Conversion Systems,
subclasses 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.")
Industrial Electric Heating Furnaces,
subclasses 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.
X-Ray or Gamma Ray Systems or Devices, appropriate subclasses, particularly
subclasses 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.")
Chemical Apparatus and Process Disinfecting, Deodorizing,
Preserving, or Sterilizing,
subclasses 22+ for processes of disinfecting, deodorizing, preserving,
or sterilizing using an electric space charge device.
Combustion,
subclasses 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.")
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.
SECTION V - 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.
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.
Radiant Energy,
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 material.
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.
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.
Recorders, appropriate subclass for cathode-ray devices in
combination with photographic 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.
Facsimile and Static Presentation Processing,
subclasses 409 through 424for synchronizing in facsimile systems which include
a cathode-ray tube. See Notes (4), (5), and (6) above for the line
between Class 358, subclasses 409-424 and these subclasses (1.1-1.18).
Television Signal Processing for Dynamic Recording
or Reproducing,
subclass 130 for cathode-ray tubes in combination with optical
means, such as lenses, mirrors, etc., used for television recording.
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.
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.
Electric Lamp and Discharge Devices,
subclasses 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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
for other discharge devices which have structurally
combined therewith a waveguide, coaxial cable, or other transmission
line having distributed inductance and capacitance.
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.
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.
Wave Transmission Lines and Networks,
subclasses 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.
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.
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.
Amplifiers,
subclasses 45+ for amplifiers having an electron beam tube coupled
to cavity resonator, including those of types classified in this
and indented subclasses.
Oscillators,
subclasses 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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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° and
may even be 180° 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.
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.
Oscillators,
subclass 80 for electric wave generating systems utilizing
a charged particle or electron beam tube with beam sweeping or deflecting means.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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+.
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.
Oscillators,
subclasses 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).
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.
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.
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.
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.
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.
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.
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.
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.
Wave Transmission Lines and Networks,
subclasses 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.
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.
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.
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.
for a plurality of hollow distributed parameter
devices having flexible walls, which are linked together for simultaneous
adjustment of the tuning of the devices.
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.
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.
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.
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.
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.
Wave Transmission Lines and Networks,
subclasses 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.
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.
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.
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.
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.
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.
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.
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.
Electric Lamp and Discharge Devices,
subclasses 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.
Electrical Computers: Arithmetic Processing and
Calculating,
subclasses 100+ and 800+, respectively, for digital or
analog calculators with electrical means for storing numerical data in
electric pulse form for a later retrieval.
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.
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.
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.
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.
Electrical Pulse Counters, Pulse Dividers, or
Shift Registers: Circuits and Systems,
subclass 99 for plural cathode-ray tube systems utilized in pulse
counting.
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.
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.
Radiant Energy,
subclasses 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.
Television,
subclasses 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.
Electric Lamp and Discharge Devices,
subclass 379 for cathode-ray tube structures which are photosensitive
and which have a secondary emissive electrode.
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.
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.
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.
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.
Electric Lamp and Discharge Devices,
subclasses 409+ for cathode-ray tube structures which are provided with
means to form a plurality of cathode- ray beams.
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.
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.
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.
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.
Electric Lamp and Discharge Devices,
subclasses 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).
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.
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.
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.
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.
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.
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.
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.
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.
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.
Electric Lamp and Discharge Devices,
subclasses 446+ and the subclasses specified in the Notes thereto for
cathode-ray tube structures which have a ray modulating means.
Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for miscellaneous systems
which include a discharge device provided with a discharge control
means.
COMBINED LOAD DEVICE OR LOAD DEVICE TEMPERATURE MODIFYING MEANS
AND ELECTRICAL CIRCUIT DEVICE STRUCTURE:
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.
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.
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.)
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.
Electrical Resistors,
subclasses 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.)
Electricity: Electrical Systems and Devices,
subclasses 139+ where the circuit element is an electromagnetic devices
and subclasses 271+ where the circuit element is a condenser.
(See (9) Note, above.)
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.
Fishing, Trapping, and Vermin Destroying,
subclasses 16 and 17 for portable, self-contained, illuminated signaling
devices for fishing apparatus, and subclasses 17.5+, for
portable, self-contained, illuminated bait.
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.
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
subclasses 157+ for portable self-contained electric lamps, such
as flashlights.
Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation), appropriate subclasses for radio apparatus and Class 343,
Communications: Radio Wave Antennas,
subclasses 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.
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+.
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.
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.
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.
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.
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.
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.
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.
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.
Oscillators,
subclasses 5 , 6+, 79+, 86+, 93, and
96+ for electrical oscillation systems wherein a space
discharge device is combined with a distributed parameter impedance device.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Electric Lamp and Discharge Devices,
subclasses 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.
Wave Transmission Lines and Networks,
subclasses 219+ for resonators of the distributor parameter type.
See subclasses 227+ for the cavity or waveguide type.
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.
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.
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.
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.
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.
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.
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.
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.
for other discharge devices under subclass 39.51
which are provided with an auxiliary anode, or cathode, or control
electrode or secondary emitter electrode.
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.
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.
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.
Inductor Devices,
subclasses 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.
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.
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.
Electric Lamp and Discharge Devices,
subclasses 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.
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.
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.
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.
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.
This subclass is indented under subclass 39.51. Devices which are provided with significantly claimed magnetic
field generating or magnetic pole structure.
Electric Lamp and Discharge Devices,
subclasses 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.
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.
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.
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.
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).
for this subject matter where the device having
the distributed inductance is a transmission line having distributed
parameters (e.g., waveguide, coaxial cable, etc.).
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.
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.
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.
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.
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.
for discharge devices which have structurally combined
therewith a transmission line having distributed parameters (e.g.,
a waveguide, coaxial cable, etc).
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.
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.
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.
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.
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.
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.
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).
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.
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.
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.
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.
Electric Lamp and Discharge Devices,
subclasses 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.
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.
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.
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.
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.
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.
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.
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.
Electric Lamp and Discharge Devices,
subclasses 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.
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.
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.
for discharge device loads having an electrical
heater structurally combined with the discharge device and connected
in electrical series with the discharge electrodes.
Electric Lamp and Discharge Devices,
subclasses 11+ for lamp structures and discharge device structures
provided with means for modifying the temperature of the lamp or discharge
device.
This subclass is indented under subclass 32. Subject matter, having a plurality of circuit elements structurally
combined with the load device structure.
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.
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.
This subclass is indented under subclass 51. Subject matter, having a plurality of impedance elements
structurally combined with the load device structure.
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.
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.
This subclass is indented under subclass 52. Subject matter, having a plurality of inductive impedances
structurally combined with the load device structure.
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.
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.
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.
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.
Electrical Generator or Motor Structure, appropriate subclasses for miscellaneous electric current
generators and
subclass 339 for piezoelectric devices.
for other discharge devices which have structurally
combined therewith a transmission line of the distributed parameter
type (e.g., waveguide, coaxial cable, etc.).
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.
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.
Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses for consumable electrode
discharge devices which have structurally combined therewith an
electric circuit element.
Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses especially
subclasses 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.
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.
Inductor Devices, appropriate subclasses for the structure of transformers
and inductive reactors. See especially
subclasses 105+ and the notes thereto for transformers and inductive
reactors combined with other structure.
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).
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.
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.
This subclass is indented under subclass 58. Discharge devices, having the impedance electrically connected
between two electrodes of the discharge device.
for other discharge devices which have structurally
combined therewith a transmission line of the distributed parameter
type (e.g., a waveguide, coaxial cable, etc.).
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.
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.
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.
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.
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.
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).
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.
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.
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.
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.
for discharge devices which have structurally combined
therewith a transmission line of the distributed parameter type,
(e.g., waveguide, coaxial cable, etc.).
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).
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.
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.
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.
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).
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
This subclass is indented under subclass 64. Multiple filament load devices, wherein the filaments have
different resistances with respect to each other.
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.
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.
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.
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.
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.
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.
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.
and indented subclasses for this subject matter,
where the load device is a discharge device having an inductive impedance
connected between the electrodes.
Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses, especially
subclass 132 , for consumable electrode discharge devices structurally combined
with an impedance.
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.
Electricity: Circuit Makers and Breakers,
subclasses 19.01+ for periodic switches including those which are
structurally combined with an electric connector, such as a plug
or socket.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Electricity: Circuit Makers and Breakers, appropriate subclasses indented under
subclass 52 for electric switches combined with vehicle, ship,
or boat structure.
![[Search a list of Patent Appplications for class 315]](../as.gif)
CLASS 315,![[List of Patents for class 315 subclass 1]](../ps.gif)
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