SECTION I - CLASS DEFINITION
This is the generic class for electric lamp and electric space
discharge device structure.
Examples of such devices are electric incandescent lamps,
gas or vapor filled electric discharge tubes, including lamps, mercury
arc devices, vacuum discharge tubes, radio tubes, cyclotrons, cathode-ray
tubes, photosensitive discharge devices, secondary emission electron
multipliers, spark plugs, and open air arc and spark devices.
SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
For specific class references where not provided in the sections
below, see References to Other Classes that refer to the particular
section title.
A. LAMPS AND DISCHARGE DEVICE STRUCTURE CLASSIFIED ELSEWHERe
1. X-ray Tubes And Targets - See References to Other Classes.
2. Insulators With Arcing Devices - See References to Other
Classes.
3. Lightning Arresters - Class 313 includes lightning arresters
where the only structure is an arc or spark gap. Excluded are lightning
arresters which include an arc or spark gap in combination with
an impedance element such as a resistance, or inductance. Also
excluded are arc or spark gap arresters in combination with a circuit maker
or breaker such as a thermostatic switch or fuse. Excluded from
Class 313 are the lightning arresters of the arc or spark gap type
which are designed to have the electrodes brought into physical
contact upon a prolonged discharge or which are provided with a
material, such as, a fusible substance which melts and flows between
the electrodes to short-circuit the electrodes upon a prolonged
discharge.
Among the excluded types of lightning arresters is the type
including a mass of particulate particles, each particle being insulated
from the other, usually by a coating upon the surface of the particle.
When a discharge passes from particle to particle, the surface
material becomes conductive making a short-circuit through the mass.
If the particles remain conductively insulated and the current
is transmitted through the mass of particles by the arc or spark,
then the device is included within the scope of Class 313.
For the excluded types of lightning arresters see References
to Other Classes, below.
4. Electric Lamp Provided With Structure For Holding A Material
To Be Heated - See References to Other Classes.
5. Molecular Or Atomic Beam Devices - See References to
Other Classes.
6. Mass Spectrometers - See References to Other Classes.
7. Electron Microscopes - See References to Other Classes.
8. Cathode Ray Oscillographs - See References to Other Classes.
9. Consumable Electrode Discharge Devices (e.g., Arc Lamps,
etc.) - See References to Other Classes.
10. Lamps And Discharge Devices Having A Circuit Element
Included Therein
An electromagnet connected in circuit with an electrode does
not prevent classification of a lamp or space discharge device in
Class 313 if the electromagnet is an operator for moving an electrode
or if the electromagnet generates a magnetic flux which influences
the operation of the lamp or space discharge device (see Subclass References
to the Current Class, below). The inherent resistance of an electrode,
although significant to the operation of the device, is not considered
a circuit element such as would prevent classification in Class
313. Also See References to Other Classes.
11. Discharge Devices Structurally Combined With And In Circuit
Relation With Incandescent Lamps- See References to Other Classes.
12. Discharge Devices Having The Cathode Heater or Other
Structurally Combined Heater In Circuit Relation Therewith- See
References to Other Classes.
13. Gas Pumps And Fans- See References to Other Classes.
B. LAMP AND DISCHARGE DEVICE SYSTEMS
This class does not include electric systems for supplying
electric current and/or potential to electric lamps or to
discharge devices.
Patents which claim a lamp or discharge device having electrodes
which are adapted to have current or potential impressed upon the
electrodes or which claim a lamp or discharge device with means
recited broadly (no specific means, such as a battery, source etc.,
being included) to impress current or potential on the electrodes
are classified in this class as lamps or discharge devices unless
some circuit elements are claimed which positively limit the claims
to a system rather than to a lamp or discharge device, per se.
However, where the relative potentials between the electrodes are
claimed, the patent is classified as a system.
For example, a claim to a discharge device having an anode
adapted to be maintained at a high positive potential, a control
electrode adapted to be maintained at a low negative potential,
and a cathode adapted to be maintained at ground potential will
be excluded from this class and will be found in the appropriate
system class.
For discharge devices and lamp systems, see References to
Other Classes, below.
C. METHOD OF OPERATING LAMPS OR DISCHARGE DEVICE
Patents which claim a method of operating a lamp or discharge
device are excluded from this class and will be found in the class
which provides for the system which is required to operate the device.
See above for the classification of electric lamp and discharge
device systems. Also See References to Other Classes, below.
D. METHODS AND APPARATUS FOR SUBJECTING OBJECTS, ARTICLES
AND MATERIALS TO RAY ENERGY OR ELECTRONS OR IONS GENERATED BY DISCHARGE
DEVICES OR LAMPS
Class 313 does not include either processes or apparatus for
subjecting materials, articles or objects to the ray energy (e.g.,
ultraviolet light, X-rays, etc.) or to electrons, ions, arcs or
sparks generated by electric lamps or discharge devices.
For such methods and apparatus, see References to Other Classes,
below.
E. COMBINED WITH A SUPPORT
Where the support is a casing, jacket, electrical connector
(e.g., socket) or includes means for modifying the temperature of
the lamp or discharge device, see below.
Lamps including discharge device lamps combined with a supporting
means for the lamp are excluded from Class 313.
Class 313 is the generic class for discharge devices in combination
with supporting means for the discharge device.
Also See References to Other Classes, below.
F. COMBINED WITH TEMPERATURE MODIFYING MEANS
1. With Enclosing Casing Or Jacket:
Class 313 is a generic class for all discharge devices where
significant discharge device structure is claimed in combination
with a jacket, casing or enclosure having means to modify the temperature
of the discharge device. (See Subclass References to the Current
Class, below.)
Included in Class 313 are all lamps, per se, and discharge
devices, per se, which are provided with a double walled envelope
or two sealed enclosing envelopes, the second envelope being an
integral part of the lamp or discharge device structure, the space
between the two envelope portions being evacuated or filled with
heat transfer or insulating means to modify the temperature of the
lamp or discharge device. (See Subclass References to the Current
Class, below.)
See References to Other Classes, below.
2. Lamp, Discharge Devices, And Envelopes Therefor With Temperature
Modifying Means
Class 313, provides for all lamp and discharge device structures,
per se, where significant lamp or discharge device structure is
claimed and which include means for modifying the temperature of
the lamp or discharge device, excepting lamps and discharge devices
of the consumable electrode type which are classified elsewhere.
(See References to Other Classes, below.)
See above when the lamp or discharge device is provided with
a separable casing, jacket, or enclosure and which include means
to modify the temperature of the lamp or discharge device, and also
see above with respect to photocells provided with temperature modifying
means where no significant photocell structure is claimed.
See Class 313 for lamp and discharge device structure which
include means for modifying the temperature of the lamp or discharge
device. Included are lamp and discharge devices, per se, having
heating means for raising the temperature of the device, devices
with electrodes provided with cooling ducts or heat radiators, devices
with means to modify the temperature of the envelope, including
double walled envelopes or two sealed enclosing envelopes with a
heat conducting or heat insulating medium (including vacuum) in
the space between the two envelope walls, devices with heat conducting
or insulating members, etc.. Also included is the structure of electrodes
for lamps and discharge devices which are provided with means to
modify the temperature of the electrode (e.g., electrodes with cooling
fins, fluid ducts, heat transmission means, etc.).
Excluded from Class 313 are mere envelopes, for electric lamps
or discharge devices provided with temperature modifying means where
no significant lamp or discharge device structure is claimed.
Parts of lamps and discharge devices, such as electrode clamps
or electrical connectors provided with heat modifying means are
classified with the appropriate device, e.g., with the clamp or
connector, etc.
G. COMBINED WITH A SEPARABLE CASING, JACKET, SHIELD, OR ENVELOPE
PROTECTIVE MEANS
Where the lamp or discharge device and casing or jacket includes
means to modify the temperature of the lamp or discharge device,
see above.
See below with respect to the classification of lamps and discharge
devices provided with an envelope or a nonseparable casing or jacket.
Class 313 is a generic class for the combination of significant
discharge device structure and a separable casing jacket, shield
or enclosure, or envelope protective means and provides for all
discharge devices other than lamps which are not otherwise classified
where significant discharge device structure is claimed in combination
with a casing, jacket, shield, or envelope protective means. Included
in Class 313 are all lamps which have a double wall envelope where
the second envelope which encloses the first envelope is integrally
united with the first envelope so that the two envelope walls constitute
an integral structure. Where the second envelope wall is not integral
with the lamp envelope, that is, it is removable therefrom, the
patent is excluded from Class 313 and will be found elsewhere.
The combination of an envelope, box or housing (such as a lamp or discharge
device envelope) and either a separable or integral casing or housing
where electrical features are claimed is classified elsewhere.
(See References to Other Classes, below.)
See Class 313 for lamps and discharge devices which have an
integral double wall envelope; for discharge devices having an envelope
and a casing or jacket therefor; for where the discharge device
is provided with an electrical shield and for other discharge devices
provided with a casing or jacket. (See Subclass References to the
Current Class, below.)
Also See References to Other Classes.
H. COMBINED WITH OPTICAL DEVICE OR HAVING SPECIAL RAY TRANSPARENT
ENVELOPE (E.G., FILTER, REFLECTOR, LENS, LIGHT DISTRIBUTOR OR MODIFIER
LIGHT SHIELD, LIGHT SHADE, ULTRAVIOLET RAY TRANSPARENT PORTION,
OR LIGHT OBSCURING MEANS).
Class 313 provides for all lamps and discharge devices which
have an integral part of the lamp an optical means combined therewith
or which are provided with an envelope at least a portion of which
is made of a glass or material especially designed to transmit a
particular portion of the spectrum, such as ultraviolet, infrared,
or only a restricted portion of the visible spectrum. This includes
lamps and discharge devices with light filters, reflectors, refractors,
etc. within the envelope of the lamp or coated upon or forming a
part of the envelope of the lamp. See Class 313 for this art. See
this class (313) for lamps and discharge devices where the claims
are limited to the envelope being made of a glass or other material
(e.g., quartz) which transmits a particular portion of the spectrum
or a restricted portion of the spectrum. (See Subclass References
to the Current Class, below.)
See below for the classification of envelopes, jackets, and
casings, per se, for lamps and discharge devices.
Class 313 does not provide for any discharge devices or lamps
where the optical device is separable from the lamp or discharge
device, that is, it is not an integral part of the lamp or discharge
device.
See References to Other Classes, below.
J. COMBINED WITH ELECTRICAL CONNECTOR STRUCTURE
Class 313 provides for the combination of all electric lamps
and discharge devices where significant lamp or discharge device
structure is recited in combination with an electric connector for
connecting the lamp or discharge device in an electric circuit.
See Class 313 where the lamp or discharge device is combined with
a separable or detachable electric connector (e.g., a socket) and where
the lamp or discharge device is provided with an electrical connector
which is a part of the lamp or discharge device (e.g., a base on
the lamp). (See Subclass References to the Current Class, below.)
1. Lamps And Discharge Devices Combined With A Separable
Electric Connector
This class (Class 313), Electric Lamp and Discharge Devices)
provides for the combination of an electrical lamp with a base or
socket including a filament, or other reference to electrodes of
the lamp.
See References to Other Classes.
2. Lamps And Discharge Devices Which Include Electrical Connector
Structure
For reference to lamps and discharge devices with a base,
where no electrical connector structure is involved, see below
and References to Other Classes.
3. Electrodes Combined With Connector Structure
Class 313 includes all electrodes for electric lamps and discharge
devices where significant lamp or discharge device electrode structure
is claimed in combination with an electrical connector for the electrode,
or where the electrode is provided with electrical connector structure.
Merely reciting that the electrode is a metallic or nonmetallic
rod or wire, or that the electrode has a particular cross-section
where the connector is attached to the connector is not considered
to be significant electrode structure.
See References to Other Classes, below.
K. ENVELOPES, CASINGS AND JACKETS FOR LAMPS AND DISCHARGE
DEVICES
Class 313 provides for the combination of electric lamps and
discharge devices which are provided with a envelope, and for electric
lamps and discharge devices which are provided with a casing or
jacket which is an integral part of the lamp or discharge device.
Class 313 provides for lamps and discharge devices where the claims
are limited to the envelope being made of a glass or other material
(e.g., quartz) which transmits a particular portion of the spectrum
or a restricted portion of the spectrum. See Class 313 for lamps
and discharge devices with envelopes, and for discharge devices
and lamps with casings or jackets. (See Subclass References to
the Current Class, below.)
See discharge devices which are provided with separable casing,
jacket, shield or envelope protective means, and References to Other
Classes, below.
1. With Attached Base
Where the attached base includes electrical connector means
see above and References to Other Classes, below.
2. With Lead-in Structure
Boxes, housings, and envelopes for electrical devices including
electric lamps and discharge devices where the box, housing or envelope
includes means to couple a conductor to the box, housing, or envelope,
or has means for passing a lead-in conductor into the box or housing
are classified elsewhere. Boxes, housings, and envelopes which
are provided with other significant electrical structure or which
are claimed as having an electrical device therein where no significant
characteristics of the electrical device are recited are elsewhere.
(See References to Other Classes, below.)
Note that if the lead-in conductors are of such rigidity to form
contacts (usually plug-type contacts), the device is classified
elsewhere unless significant structure of the device in addition
to the connector structure is recited as pointed out above. Any
specification of electric lamp or discharge device structure in
addition to naming the type of lamp or discharge device will cause
classification of the patent in Class 313. Where the claims are drawn
to an electrical device broadly defined within the envelope, the
patent is classified elsewhere. Claims which are drawn to a discharge
device or electric lamp or a particular type, such as a gas filled
discharge device, or an incandescent lamp where only envelope and
lead-in structures are claimed are classified elsewhere.
For lead-in and seal structure such as glass to metal seals,
see below.
3. With Identifying Indicating Mark- See References to Other
Classes.
4. Defined Only By Composition
Envelopes, jackets and casings which are defined only by their
composition will be found in the appropriate composition class.-
See References to Other Classes, below.
5. Structure- See References to Other Classes, below.
L. BUSHINGS, GLASS-TO-METAL SEALS AND LEAD-IN CONDUCTORS
See above for lamps and discharge devices which are provided
with electrical connector means such as a base having prongs thereon
and which sometimes include bushings or lead-in conductors for conducting
electricity through the wall of the housing, jacket or envelope
of the lamp or discharge device to the electrodes within the casing,
jacket or envelope. See above for housings, jackets, and envelopes
for electric lamps and discharge devices which are provided with
lead-in or bushing structure for passing electric current through
the wall of the housing, jacket, or envelope to the interior of
the device.
See References to Other Classes, below.
M. ELECTRODES AND SHIELDS
Class 313 provides for all electrodes and shields, per se, excepting
the consumption feed type electrodes classified elsewhere. Class
313 includes electrodes and shields formed of two or more parts
with a joint therebetween where significant electrode or shield
structure is claimed. Electrodes which are limited by claimed structure
to use in discharge devices (arc lamps) in which the feed or motion
of one of the electrodes towards the other is accomplished by the
destruction of the electrode or a portion thereof due to the discharge
are classified elsewhere. (See References to Other Classes, below.)
Electrodes and shields which include no more structure than
a base having one or more coatings thereon are excluded from Class
313. Merely naming the electrode or shield as a wire, filament,
rod, ribbon or strand is not sufficient structure to cause classification
in Class 313. Electrodes and shields which are defined only by
their composition are excluded from this class. The excluded art
relating to electrodes and shields will be found in the classes
listed below:
1. Electrodes And Shields With Joints Therebetween
Where the only structure of the electrode or shield recited
is that the electrode or shield is composed of two or more parts
with means to join the parts together, the patents will be found
in the appropriate class providing for the joint.
See References to Other Classes, below, for a reference to
the classes which provide for joint structure.
Where an electrical feature is claimed in addition to the joint
but no significant structure other than that required to make the
joint is recited, the patent will be found elsewhere for the electrical
connector structure. Where an electrode is composed of two rod-like
portions and one portion is provided with a hollow screw threaded
socket and the other is provided with the screw threaded end to fit
into the socket, the patent is classified elsewhere. If the structure
includes means such as a portion of higher electrical conductivity
to insure good electrical contact between the portions, the patent
would be classified elsewhere.
See References to Other Classes, below.
2. Coated Electrodes Or Shields And Compositions- See References
to Other Classes, below.
3. Methods And Apparatus For Manufacturing Electrodes- See
References to Other Classes, below.
N. FLUORESCENT AND PHOSPHORESCENT COATING AND COMPOSITIONS
Class 313 provides for electric lamps and discharge devices
where significant lamp or discharge device structure is claimed
which include as a part thereof a fluorescent or phosphorescent
material. See this class (313) for cathode-ray tubes which have
a fluorescent or phosphorescent target and for other discharge devices and
lamps having an electrode or the envelope coated with or containing
a fluorescent or phosphorescent material, or which otherwise include
as a part thereof a fluorescent or phosphorescent material.
See References to Other Classes, below.
O. GETTERS AND GAS OR VAPOR GENERATING MATERIALS
Class 313, provides for all electric lamps and discharge devices
which have combined therewith a getter or a gas or vapor generating
material, irrespective of whether the getter or gas or vapor generating
means, is to be used during the manufacture of the device, or to
be used during the operation of the device, or to be used as needed after
the device has been operated. Class 313 also provides for electrode
structure combined with containers or receptacles for the getter
or the gas or vapor generating material. For electrodes which involve
significant electrode structure with a coating or a getter material thereon,
see this class (313). For the classification of electrodes which
involve only a base with a coating of a getter material thereon,
or which involves only an electrode defined by its compositions,
see above.
See Subclass References to the Current Class, below, and References
to Other Classes, below.
P. DEFLECTION AND FOCUSING MAGNETS
Magnets provided with a plurality of coils to deflect the cathode
ray in a plurality of directions, (e.g., vertically, and horizontally)
are classified elsewhere. Magnets for focusing, concentrating or
accelerating cathode rays even if the magnet is provided with a
plurality of separate coils are elsewhere. Magnets for cathode-ray
tubes which have a plurality of coils to generate both a deflecting
field and a focusing, concentrating and/or accelerating
field are classified in Class 313.
See References to Other Classes, below.
Q. INFRARED RAY GENERATORS
Class 313 does not provide for devices for converting electrical
energy into infrared ray energy, excepting in special cases. Many
lamps and discharge devices inherently generate infrared ray energy
in their operation. Class 313 will take therefore, electric lamps
and discharge devices which are stated to be for the purpose of generating
infrared ray energy when such lamps and discharge devices are substantially
identical in structure with lamps and discharge devices intended
to generate visible light or ultraviolet light or other analogous
ray energy. Class 313 will take such devices even though the device
includes means for preventing light energy other than the infrared
ray energy from being emitted, such as having the envelope wall
formed of an opaque material. Such infrared ray generators are classified
in Class 313 in the subclasses providing for the structure of the
analogous lamp or discharge device, see especially where the lamp
or discharge device has an envelope made of the material which is
especially transparent to infrared ray energy and where the lamp
or discharge device is provided with a light obscuring means such
as an opaque coating on the envelope wall. (See Subclass References
to the Current Class, below.)
Class 313 does not provide for the infrared generator in combination
with a reflector, guard, support, separable casing, or jacket.
For such excluded subject matter and other infrared ray generators
see References to Other Classes, below.
R. METHODS AND APPARATUS FOR MANUFACTURING OR REPAIRING ELECTRIC
LAMPS OR DISCHARGE DEVICES OR SALVAGING PARTS THEREOF
Class 313 does not provide for the processes or apparatus
used either to manufacture or repair electric lamps or discharge
devices. It should be noted, however, that Class 313 does provide
for electric lamp and discharge devices which are provided with
a getter, a gas or vapor generating means, or pressure regulating
means, see above. (See Subclass References to the Current Class, below.)
S. SYSTEMS, APPARATUS AND METHODS FOR TESTING ELECTRIC LAMPS
AND DISCHARGE DEVICES
See References to Other Classes.
T. RELATIONSHIP OF CLASSES 313 TO 445, ELECTRIC LAMP OR SPACE
DISCHARGE COMPONENT OR DEVICE MANUFACTURING
In view of the statements in the above sections, the relationship
between the classes and subclasses mentioned can be shown in schedule
form thus:
313, Electric Lamp and Discharge Devices
314, Electric Lamp and Discharge Devices: Consumable Electrodes
315, Electric Lamp and Discharge Devices: Systems
445, Electric Lamp or Space Discharge Component or Device
Manufacturing
U. DISTINCTION BETWEEN DISCHARGE DEVICES AND ELECTRIC SWITCHES
Some types of electric switches are closely analogous in structure
to some types of discharge devices. This is especially true with
respect to the type of discharge device where the electrodes of
the discharge device are placed in contact and then separated from
each other to establish the discharge. Some types of switches include means,
such as electromagnets, to extinguish the arc between the switch
contacts when the switch is opened. Some types of discharge devices
include means, such as electromagnets, to defect or otherwise alter
the characteristics of the discharge between the electrodes.
The distinction between electric switches and discharge devices,
therefore, depends in some cases principally upon the disclosed
purpose of the structure claimed by the patent. Where the 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. When the electrodes are placed in physical contact
to close the circuit, and separated from each other to interrupt
the circuit, the device will be classified as a switch. Where the
purpose of the claimed structure is to establish a space discharge
by contacting the electrodes with each other and then separating
the electrodes, the device is considered to be a discharge device for
Class 313.
Excluded from Class 313 are devices which are designed normally
to have a discharge between the electrodes and which include means
operative after either prolonged use or overload to establish a
short-circuit path from one of the electrodes to the other electrode
so as to extinguish the space discharge. See above relative to
lightning arresters of this type.
Switches which are somewhat analogous in structure to space
discharge devices 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, are classified elsewhere.
See References to Other Classes, below.
W. DISTINCTION BETWEEN DISCHARGE DEVICES AND ELECTRIC CONDENSERS
AND OTHER STATIC FIELD PRODUCING MEANS
Some types of space discharge devices are closely analogous
in structure to some types of electric condensers and other static
field producing devices. In these cases the device usually consists
of two electrodes separated by air, gas, vapor or vacuum and are
designed to have an electric potential impressed thereon. Where
the device is intended to have a current flow between the electrodes
either by ionization or by electron flow, the device is considered
to be a space discharge device for Class 313. However, if the device
is designed for use without ionization between the electrodes or
without transmitting current by electron flow then the device will
be excluded from Class 313 and found in the other appropriate class.
Most devices other than the electric condensers of the type
referred to above which are excluded from Class 313 are devices
for treating materials such as ozonizers, electrical precipitators,
disinfecting and sterilizing apparatus.
The Classification of such devices is referred to above. Also
See References to Other Classes.
SECTION III - SUBCLASS REFERENCES TO THE CURRENT CLASS
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 11+, | for discharge devices where significant discharge
device structure is claimed in combination with a jacket, casing
or enclosure having means to modify the temperature of the discharge
device. |
| 11+, | for lamp and discharge device structure which include
means for modifying the temperature of the lamp or discharge device.
Included are lamp and discharge devices, per se, having heating
means for raising the temperature of the device, devices with electrodes
provided with cooling ducts or heat radiators, devices with means
to modify the temperature of the envelope, including double walled
envelopes or two sealed enclosing envelopes with a heat conducting
or heat insulating medium (including vacuum) in the space between
the two envelope walls, devices with heat conducting or insulating
members, etc.. Also included in subclasses 11+ is the structure
of electrodes for lamps and discharge devices which are provided
with means to modify the temperature of the electrode (e.g., electrodes
with cooling fins, fluid ducts, heat transmission means, etc.). |
| 25+, | for all lamps, per se, and discharge devices, per se,
which are provided with a double walled envelope or two sealed enclosing
envelopes, the second envelope being an integral part of the lamp
or discharge device structure, the space between the two envelope
portions being evacuated or filled with heat transfer or insulating
means to modify the temperature of the lamp or discharge device. |
| 25+, | 312, 315, 317+, and 634+ for lamps
and discharge devices which have an integral double wall envelope. |
| 49+, | for a lamp or discharge device combined with a separable
or detachable electric connector (e.g., a socket), and subclasses
318.01+ a lamp or discharge device provided with an electrical connector
which is a part of the lamp or discharge device (e.g., a base on
the lamp). |
| 110+, | for lamps and discharge devices with light filters,
reflectors, refractors, etc. within the envelope of the lamp or
coated upon or forming a part of the envelope of the lamp. |
| 112, | for lamps and discharge devices where the claims
are limited to the envelope being made of a glass or other material
(e.g., quartz) which transmits a particular portion of the spectrum or
a restricted portion of the spectrum. |
| 112, | for where the lamp or discharge device has an envelope
made of the material which is especially transparent to infrared
ray energy. |
| 117, | for where the lamp or discharge device is provided
with a light obscuring means such as an opaque coating on the envelope
wall. |
| 152, | for an electromagnet connected in circuit with an
electrode if the electromagnet is an operator for moving an electrode. |
| 153+, | for an electromagnet connected in circuit with an
electrode if the electromagnet generates a magnetic flux which influences
the operation of the lamp or space discharge device. |
| 312, | for discharge devices having an envelope and a casing
or jacket therefor. |
| 313, | for a discharge device provided with an electrical
shield. |
| 317+, | for lamps and discharge devices with envelopes. |
| 324, | for discharge devices and lamps with casings or
jackets. |
| 355, | and the subclasses referred to in the notes thereto,
for electrodes which involve significant electrode structure with
a coating or a getter material thereon. |
| 416+, | for cathode-ray tubes which have a fluorescent or
phosphorescent target. |
| 421+, | for magnets for cathode-ray tubes which have a plurality
of coils to generate both a deflecting field and a focusing, concentrating
and/or accelerating field. ("Deflection And Focusing Magnets"). |
| 483+, | for other discharge devices and lamps having an
electrode or the envelope coated with or containing a fluorescent
or phosphorescent material, or which otherwise include as a part thereof
a fluorescent or phosphorescent material. |
| 549+, | for all electric lamps and discharge devices which
have combined therewith a getter or a gas or vapor generating material,
irrespective of whether the getter or gas or vapor generating means,
is to be used during the manufacture of the device, or to be used
during the operation of the device, or to be used as needed after
the device has been operated. Subclasses 549+ also provides
for electrode structure combined with containers or receptacles
for the getter or the gas or vapor generating material. |
SECTION IV - REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
| 29, | Metal Working,
subclasses 825+ is the generic place for methods not elsewhere
classified of mechanical manufacturing an electrical conductor or
circuit and subclasses 745+ for corresponding apparatus.
(Lines With Other Classes and Within This Class, "Methods
and Apparatus For Manufacturing Electrodes"). |
| 75, | Specialized Metallurgical Processes, Compositions
for Use Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures,
subclasses 228+ for consolidated metal powder compositions. (Lines
With Other Classes and Within This Class, "Bushings, Glass-to-Metal
Seals and Lead-In Conductors"). |
| 75, | Specialized Metallurgical Processes, Compositions
for Use Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures,
subclasses 228+ for metal stock, filaments and wire made of consolidated metal
particles. (Lines With Other Classes and Within This Class, "Coated
Electrodes Or Shields And Compositions"). |
| 116, | Signals and Indicators,
subclasses 216+ provides for lamp or discharge device envelopes or
casings which are provided with an identifying mark which changes
its appearance if the lamp or discharge device is used for an appreciable
time. (Lines With Other Classes and Within This Class, "With
Identifying Indicating Mark"). |
| 156, | Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclass 47 is the generic place for methods not elsewhere
classified of making electrical conductors of indefinite length.
(Lines With Other Classes and Within This Class, "Methods
and Apparatus For Manufacturing Electrodes.") |
| 156, | Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclasses 99+ for methods of making laminated glass structures.
(Lines With Other Classes and Within This Class, "Defined
Only By Composition"). |
| 165, | Heat Exchange, takes patents claiming heat exchange apparatus combined
with a device to be cooled or heated thereby if no structure of said
device is included other than the structure necessary for cooperation
with the heat exchange apparatus, the mere naming of the device
as a lamp or discharge device will not be sufficient to exclude
the patent from Class 165. See especially
subclasses 47+ for a structurally installed heat exchanger; subclass
74 for a device to be heated or cooled projecting into and removably
secured to a container for a heat exchange fluid; and subclass 80
for a removable device removably retained in a heat exchanger.
(Lines With Other Classes and Within This Class, "With
Enclosing Casing Or Jacket:") |
| 165, | Heat Exchange, for envelopes and casings provided with heat exchange means,
including a mere metallic envelope defined as an anode or a similar
electrode with heat exchange means;
subclasses 177+ for a tubular structure with heat transfer means;
and subclass 185 for a heat transmitter, per se. (Lines With Other
Classes and Within This Class, "Lamp, Discharge Devices,
And Envelopes Therefor With Temperature Modifying Means"). |
| 173, | Tool Driving Or Impacting, for lead-in conductors of such rigidity as to form
contacts (usually plug-type contacts), unless significant structure
of the device in addition to the connector structure is recited.
Any specification of electric lamp or discharge device structure
in addition to naming the type of lamp or discharge device will
cause classification of the patent in Class 313. |
| 174, | Electricity: Conductors and Insulators, appropriate subclasses for the combination of an envelope,
box or housing (such as a lamp or discharge device envelope) and
either a separable or integral casing or housing where electrical
features are claimed. (Lines With Other Classes and Within This
Class, G, "Combined With a Separable Casing, Jacket, Shield,
or Envelope Protective Means") |
| 174, | Electricity: Conductors and Insulators, for an electrical device broadly defined within
the envelope, the patent is classified in Class 174. See section
7 of the class definition of Class 174. Claims which are drawn to
a discharge device or electric lamp or a particular type, such as
a gas filled discharge device, or an incandescent lamp where only
envelope and lead-in structures are claimed are classified in Class
174. (Lines With Other Classes and Within This Class, K, "Envelopes,
Casings And Jackets For Lamps And Discharge Devices"). |
| 174, | Electricity: Conductors and Insulators, is the generic class for boxes, housings, and envelopes
for electrical devices including electric lamps and discharge devices
where the box, housing or envelope includes means to couple a conductor
to the box, housing, or envelope, or has means for passing a lead-in
conductor into the box or housing. Class 174 also provides for
boxes, housings, and envelopes which are provided with other significant
electrical structure or which are claimed as having an electrical
device therein where no significant characteristics of the electrical
device are recited. (Lines With Other Classes and Within This Class,
K, "Envelopes, Casings And Jackets For Lamps And Discharge
Devices"). |
| 174, | Electricity: Conductors and Insulators, generic class for boxes, casings, jackets, and envelope with
lead-in conductors or means to couple conductors to the box, casing,
or jacket; generic class for electrical device combined with casing,
jacket, or shield; for lamp and discharge device envelopes with
electrical connector structure; and for boxes and housings (e.g.,
envelopes and casings for lamp and discharge devices) with electric
connector. |
| 174, | Electricity: Conductors and Insulators, provides for a mere housing, casing or envelope for an
electrical device, such as a lamp or discharge device, where no
significant structure of the device is claimed with means for modifying the
temperature of the device and which has electrical features combined
therewith, such as connector structure. See
subclasses 15.1+ where the housing, casing or envelope is combined
with means for feeding, circulating or distributing a temperature
modifying fluid and see subclasses 50+ where the temperature
modifying means for the housing, casing, or envelope does not require
circulation of a fluid, as for example, by having heat radiating
fins or a heat conductive path. (Lines With Other Classes and Within
This Class, "With Enclosing Casing Or Jacket:"). |
| 174, | Electricity: Conductors and Insulators, is the generic class for the combination of an electrical
device recited by name only (e.g., no significant characteristics
of the device are recited, and the device may be a discharge device
or lamp) and the separable casing, jacket, shield or enclosure where
electrical features are involved such as the lead-in conductors
for the device. See section 7 of the class definition of Class
174 for the subclasses in Class 174 which provide for boxes, housings
and envelopes in Class 174. These subclasses also provide for the
combination with a separable casing, jacket, shield or enclosure
where electrical features are claimed. Note especially
subclass 50.51 and 350 in Class 174. Class 174 provides for the
combination of a lamp or discharge device and a box, housing, casing,
jacket or other container. ("Combined With A Separable Casing,
Jacket, Shield, or Envelope Protective Means"). |
| 174, | Electricity: Conductors and Insulators, provides for envelopes designed for use with electrical
devices, including those for electric lamps and space discharge
devices, and which include electrical features (such as lead-in
conductors for the lamp) but which do not include any significant
characteristics of the electrical device, and means to modify the
temperature of the device or envelope. See
subclasses 15.1+ where the envelope is combined with means for feeding,
circulating or distributing a temperature modifying fluid, and see
subclasses 50.5+ where the temperature modifying means
for the envelope does not require circulation of a fluid as, for
example, by having heat radiating fins or a heat conductive path.
(Lines With Other Classes and Within This Class, "Lamp,
Discharge Devices, And Envelopes Therefor With Temperature Modifying Means"). |
| 174, | Electricity: Conductors and Insulators,
subclasses 17+ and 50+ for envelopes, boxes and housings
for electric lamps and discharge devices which are of general utility
and where electrical features are claimed which are provided with
an electrical connector where significant structure of the box,
housing or envelope is claimed in addition to the electrical connector
structure; subclasses 17.08 and 50.52+ for hermetically
sealed envelopes where significant structure of the envelope is recited
in combination with electrical connector structure. These subclasses
in Class 174 provide the envelopes having lead-in wires sealed therein
which are designed to form contacts (usually plug type contacts)
where structure of the envelope in addition to the lead-in wire
structure is recited. Note especially subclass 50.53 where the
envelope or seal for the envelope is formed of a conductive material and
is used as the electrical connector for the device within the envelope.
(Lines With Other Classes and Within This Class, "Lamps
and Discharge Devices Which Include Electrical Connector Structure") |
| 174, | Electricity: Conductors and Insulators,
subclass 15.1 for housings, casings, or envelopes for electrical
devices (e.g., lamp or discharge devices) with means for modifying
the temperature of the device; subclass 17 for boxes and housings
with electric connector; subclass 17.08 for hermetically sealed
envelope with electric connector; subclasses 50-64 for miscellaneous
boxes and housings for electrical devices; subclass 50 for boxes
and housings with electric connector; subclass 50.5 for hermetically
sealed envelopes with lead-in conductors; subclass 50.51 for hermetically
sealed envelope with separable casing or jacket; subclass 50.52
for hermetically sealed envelope with electrical connector; subclasses
140+ for line insulators with arcing device; subclass 144
for arcing device, per se, for line insulators; subclass 151 for
insulators for passing conductors through walls or plates; subclass 152
for electrical bushings; and subclasses 350-397 for miscellaneous
electrical shields. |
| 174, | Electricity: Conductors and Insulators,
subclasses 15+ for housings, casings, or envelopes for electrical
devices (e.g., lamp or discharge devices) with means for modifying
the temperature of the device; subclass 17 for boxes and housings
with electric connector; subclass 17.08 for hermetically sealed
envelope with electric connector; subclass 35 for miscellaneous
electrical shields; subclasses 50+ for miscellaneous boxes
and housings for electrical devices; subclass 50 for boxes and housings with
electric connector; subclass 50.5 for hermetically sealed envelopes
with lead-in conductors; subclass 50.51 for hermetically sealed envelope
with separable casing or jacket; subclasses 50.52+ for
hermetically sealed envelope with electrical connector; subclasses 140+,
for line insulators with arcing device; subclass 144, for arcing
device, per se, for line insulators; subclass 151 for insulators
for passing conductors through walls or plates; and subclass 152
for electrical bushings. |
| 174, | Electricity: Conductors and Insulators, provides for a box or housing including a hermetically
sealed envelope such as an envelope for an electric lamp or discharge
device where electrical features are claimed in combination with
a separable electric connector or socket. Class 174 provides for
such a combination where significant features of the box or housing
is recited in addition to the electrical connector features on the
envelope or in the socket or separable connector. Note that in
Class 174, in these subclasses, the electrical device in the box
or housing may be recited by name only. See especially
subclasses 17.08 and 50.52+ where the box or housing is
a hermetically sealed envelope such as is used for electric lamps
or discharge devices. (Lines With Other Classes and Within This
Class, "Lamps And Discharge Devices Combined With A Separable
Electric Connector"). |
| 174, | Electricity: Conductors and Insulators,
subclass 151 provides for insulators for insulating a conductor
from a wall through which the conductor extends. Subclass 152 provides
for those devices known as bushings, in which a portion of the insulating
element extends into the opening in the wall. (Lines With Other Classes
and Within This Class, "Bushings, Glass-to-Metal Seals
and Lead-In Conductors") |
| 174, | Electricity: Conductors and Insulators, is the generic class for boxes, housings, and envelopes
for electrical devices including electric lamps and discharge devices
where the box, housing or envelope includes means to couple a conductor
to the box, housing, or envelope, or has means for passing a lead-in
conductor into the box or housing. Class 174 also provides for
boxes, housings, and envelopes which are provided with other significant
electrical structure or which are claimed as having an electrical
device therein where no significant characteristics of the electrical
device are recited. See Class 174, Class Definition, Subclass References
to the Current Class for the particular subclasses which provide
for such boxes, housings and envelopes in Class 174, especially
subclass 50.5 and the subclasses specified in the Notes thereto
where the box, housing or envelope is hermetically sealed including
such devices as are made of ceramic, vitreous or nonmetallic plastic
material (e.g., glass), and is provided with lead-in conductors for
passing electric current into the interior. (Lines With Other Classes
and Within This Class, "With Lead-In Structure"). |
| 188, | Brakes, provides, in
subclasses 378+ for caps or jackets to be placed upon the envelope
of a discharge device or a lamp to damp the vibrations thereof due
to the inertia of the cap or jacket; and in subclass 381 for similar
caps or jackets which damp the vibrations due to friction between
the device and the cap or jacket; in both cases, wherein no significant
features of the lamp or discharge device is claimed. (Lines With
Other Classes and Within This Class, "Combined With A Separable
Casing, Jacket, Shield, or Envelope Protective Means"). |
| 200, | Electricity: Circuit Makers and Breakers, for switches distinguished from discharge devices. |
| 200, | Electricity: Circuit Makers and Breakers,
subclass 144 for switches which are somewhat analogous in structure
to space discharge devices, 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. (Lines With Other Classes
and Within This Class, U, "Distinction Between Discharge Devices
and Electric Switches"). |
| 205, | Electrolysis: Processes, Compositions Used Therein,
and Methods of Preparing the Compositions,
subclass 50 for a product (other than one containing two or
more contiguous metallic layers) produced by electrolysis involving electrolytic
marking, battery electrode active material forming, electroforming,
or electrolytic coating. (Lines With Other Classes and Within This
Class, "Coated Electrodes or Shields And Compositions"). |
| 219, | Electric Heating, for infrared ray generators;
subclass 553 for the infrared generator in combination with
a reflector, guard, support, separable casing, or jacket. (See
Lines With Other Classes and Within This Class, Q, "Infrared Ray
Generators"). |
| 219, | Electric Heating,
subclasses 45 , 407, and 521 for electric lamps for heating materials.
In some of these lamps, the envelope is made in the form of a receptacle
so that the heat from the lamp filament will heat a material in
the receptacle. Other of the lamps have means provided in the lamp
base for holding the material to be heated. (See Lines With Other
Classes and Within This Class, "Electric Lamp Provided
With Structure For Holding Material To Be Heated"). |
| 220, | Receptacles, generic class for boxes, casings, jackets, and containers;
subclasses 2.1+ provides for the combination of envelope structure with
an attached base where no electrical features are claimed. (Lines
With Other Classes and Within This Class, "With Attached
Base") |
| 220, | Receptacles,
subclasses 2.1+ are the generic place for the structure of the
envelope, casing, or jacket for lamps and discharge devices where
no significant electrical features are included. ("Structure") |
| 220, | Receptacles, is the miscellaneous class for boxes, housings, casings,
jackets and other containers and provides for envelopes for lamps
and discharge devices and the separable jackets, boxes, casings,
for discharge devices other than lamps. Class 220 does not provide for
the combination of a lamp or discharge device and a box, housing,
casing, jacket or other container even though the lamp or discharge
device is recited by name only. Such combinations are found elsewhere.
See
subclasses 2.1+ , of Class 220 for the separable jackets, casings
and housings for discharge devices in Class 220. Also see subclasses
2.1+ for the gas tight envelope structure of Class 220.
(Lines With Other Classes and Within This Class, "Combined
With A Separable Casing, Jacket, Shield, Or Envelope Protective Means"). |
| 250, | Radiant Energy,
subclasses 200+ for photo-electric controlled systems; subclasses
216+ for photocells with separable optical means; subclasses
238 for photocells with temperature modifying means; subclass 239
for photocells with a casing or housing; subs. 281+ for
mass spectrometers for the separation or analysis of materials;
subclass 311 for electron microscopes; subclasses 336.1+ for
systems for utilizing a space detecting or measuring invisible ray
energy; subclasses 324+, 432+, 453.1+, and
492.1 for methods and for apparatus subjecting objects and materials
to electrons, ions, arcs, and sparks, and for methods and apparatus
for treating objects and materials with ray energy; subclasses 423+ and
453.1+for invisible ray generators combined with a support; subclasses.
483.1+ for fluorescent and phosphorescent screens; subclasses
493.1+ for invisible ray generator combined with a separable
casing and having temperature modifying means, for ultraviolet ray
generators combined with a support, for ultraviolet ray generators with
separable casing or jacket, for ultraviolet ray generator combined
with a separable casing and having temperature modifying means,
and for invisible ray generators with separable casing or jacket;
subclasses 503.1+ for invisible ray generators with optical
device, and for invisible ray generator with separable ray filter; and
subclasses 522.1+ for casing and jackets limited to use
with invisible ray generators. |
| 250, | Radiant Energy,
subclass 251 for devices for producing and propagating a unidirectional stream
of neutral molecules or atoms through a vacuum, usually with thermal
velocity, and/or for exciting such molecules and atoms
at a resonance frequency (Lines With Other Classes and Within This
Class, "Molecular Or Atomic Beam Devices"). |
| 250, | Radiant Energy,
subclasses 281+ , for discharge Devices of the type used in the
separation or the analysis of materials utilizing the mass to electric
charge ratio of particles. (Lines With Other Classes and Within
This Class, "Mass Spectrometers"). |
| 250, | Radiant Energy,
subclass 309 and 311.For discharge devices used to produce electrons
or ions and having means for subjecting objects or materials to
the electrons or ions, including electron microscopes, (Lines With
Other Classes and Within This Class, "Electron Microscopes"). |
| 250, | Radiant Energy, provides for invisible ray generators which are enclosed
within a separable casing or housing and which are provided with means
for modifying the temperature of the ray generator where not provided
for elsewhere. See
subclasses 423+ for invisible radiant energy generation and sources.
Subclass 238 provides for photocells including those of the discharge
device type which include a separable casing or housing and means
to modify the temperature of the photocell. (Lines With Other Classes
and Within This Class, "With Enclosing Casing Or Jacket:") |
| 250, | Radiant Energy, provides for generators of invisible ray energy (e.g.,
ultraviolet ray) which have combined therewith a separable casing
or jacket not provided for elsewhere. See
subclasses 423+ for ion generation and subclasses 493.1+ for
invisible radiant energy generation and sources. Subclass 239 provides for
the combination of a photocell including those of the discharge
type in combination with a separable casing or housing. (Lines
With Other Classes and Within This Class, "Combined With
A Separable Casing, Jacket, Shield, Or Envelope Protective Means"). |
| 250, | Radiant Energy,
subclasses 503.1+ provides for invisible ray generators combined
with a separable optical or ray modifying means where not classified
elsewhere. Subclasses 216 to 236 provide for the combination of
a photoelectric cell including those of the discharge device type
in combination with separable optical means used to project light
upon the photocell. (Lines With Other Classes and Within This Class, "Combined
With Optical Device Or Having Special Ray Transparent Envelope,
etc.") |
| 250, | Radiant Energy,
subclass 336.1 for miscellaneous electric systems for detecting
or measuring invisible ray energy (e.g., Geiger-Mueller counter
systems, etc.); and subclasses 200+ for miscellaneous electric
systems which are controlled by a photo-electric discharge device.
(Lines With Other Classes and Within This Class, "Gas
Pumps And Fans, Lamp And Discharge Device Systems," for
discharge devices and lamp systems.) |
| 250, | Radiant Energy, for the irradiation of material by nuclear or electromagnetic
wave or particle radiation, especially
subclasses 324+ for methods and apparatus to subject material to
corona irradiation, subclasses 432+ for methods and apparatus
to contained, supported or transferred material with an irradiating
source for the material, subclasses 453.11+ for object supports
with or without an irradiating source for the supported object,
subclasses 458.1+ for methods and apparatus to irradiate
fluorescent and phosphorescent materials and subclass 492.1 for
methods and apparatus to irradiate objects or materials. Also note
that subclasses 281+ provides for methods and apparatus
for the ionic separation or analysis of materials utilizing the
mass to electric charge ratio of particles (e.g., mass spectrometers).
(Lines With Other Classes and Within This Class, Methods and Apparatus
for Subjecting Objects, Articles and Materials to Ray Energy or
Electrons or Ions Generated by Discharge Devices or Lamps, for such
methods and apparatus.) |
| 250, | Radiant Energy, provides for generators of invisible ray energy in combinations
with the means for supporting the ray generating means where not
elsewhere provided. See
subclasses 423+ for methods and apparatus for ion generation and
subclasses 493.1+ for methods and apparatus for radiant
energy generation and sources. (From Combined With a Support.) |
| 250, | Radiant Energy,
subclasses 483.1+ provides for fluorescent and phosphorescent screens. (Lines
With Other Classes and Within This Class, "Fluorescent
And Phosphorescent Coating And Compositions"). |
| 250, | Radiant Energy,
subclasses 522.1+ provides for casings and jackets for use with generators of
invisible ray energy (e.g., ultraviolet) where structure is claimed
which limits the jacket to use with such invisible ray energy and
subclass 239 provides for photocells where no significant characteristics
of the photocell is recited which include an envelope or housing
for the photocell. (Lines With Other Classes and Within This Class, "Structure"). |
| 252, | Compositions,
subclass 181.1 and the classes specified in the notes to the Definition
of those subclasses, provides for compositions which are designed
for use as getters or electric lamp or discharge devices or which
are designed for use in generating a gas or vapor within the envelope
or jacket of an electric lamp or space discharge device. (Lines
With Other Classes and Within This Class, "Getters And
Gas Or Vapor Generating Materials"). |
| 252, | Compositions,
subclasses 301.16 through 301.6is the generic place for fluorescent or phosphorescent
materials. (Lines With Other Classes and Within This Class, "Fluorescent And
Phosphorescent Coating And Compositions"). |
| 252, | Compositions,
subclasses 500+ for compositions which conduct or emit electrons
and for electrically conductive or emissive devices defined solely
by the composition of which they are composed. Thus the compositions may
be specialized for use as electron emissive compositions or for
preparing electrodes, filaments and shields for electric lamps or
electric space discharge devices. (Lines With Other Classes and
Within This Class, "Coated Electrodes Or Shields And Compositions"). |
| 279, | Chucks or Sockets, provides for chucks and sockets for holding rod-like
bodies and tools. Some of the chucks and sockets are designed to hold
electrodes such as the carbon rods used in arc lamps. (Lines With
Other Classes and Within This Class, "Electrodes Combined With
Connector Structure"). |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 26+ for lamps and discharge devices of the consumable
electrode type. (Lines With Other Classes and Within This Class,
F, Combined With Temperature Modifying Means.) |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes, (e.g., arc lamps with means for feeding the electrodes)
Systems;
subclasses 26+ for consumable electrode discharge device, with
temperature modifying means. |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclass 60 for consumption feed type electrodes; subclass
60 provides for electrodes which are limited by claimed structure
to use in discharge devices (arc lamps) in which the feed or motion
of one of the electrodes towards the other is accomplished by the
destruction of the electrode or a portion thereof due to the discharge.
(See Lines With Other Classes and Within This Class, M, Electrodes
and Shields.) |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes, for electric systems for supplying electric current
to discharge devices of the consumable electrode (e.g., arc lamp) type.
See above with respect to consumable electrode discharge devices.
(Lines With Other Classes and Within This Class, "Gas Pumps
And Fans, Lamp And Discharge Device Systems," for discharge
devices and lamp systems.) |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes, provides for arc and other electric space discharge
lamps or devices which are provided with at least one electrode which
is consumed during the operation of the discharge device and such
devices in combination with electric current supply systems therefor.
Substantially all of the lamps in Class 314 are characterized by
being provided with feeding means to move the electrodes together
as the electrode is consumed.
- Patents claiming an "arc discharge device" or
an "arc lamp" are not classified in Class 314
unless the claims are limited by claimed subject matter to discharge
devices of the consumable electrode type. Class 313 provides for
arc lamp and discharge device structure which is of general utility
and not necessarily limited to use with devices of the consumable
electrode type. The electrodes for the consumable electrode type discharge
devices are classified with other electrodes in Class 313 except
for the consumption feed type electrodes in Class 314 subclass
60. See above for the classification of electrodes in Class 313. (See
Lines With Other Classes and Within This Class, "Consumable
Electrode Discharge Devices" above).
|
| 315, | Electric Lamp and Discharge Devices: Systems, subclasses. 1-11, 12.1, 13.1-17, and 364-410, for systems
of supply for cathode-ray tubes;
subclasses 3+ for cathode-ray tubes structure combined with a
circuit element; subclasses 32+ for electric lamps and
discharge devices structurally combined with a circuit element;
subclasses 32+ for lightning arrestor structurally combined
with a discharge device; subclasses 46+ for discharge
devices having a lamp filament or heating resistance in shunt with
the electrodes; subclass 49 for discharge devices having a lamp
filament or heating resistance in series with the discharge electrodes;
subclasses 76-363 for systems of supply for electric lamps and gas
or vapor type discharge devices; and subclasses 364+ for
resting electric lamps or discharge devices. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 3+ and 32+ provide for discharge devices
and lamps which have a circuit element (e.g., switch, impedance,
etc..,) structurally combined with the lamp or discharge device,
see subclasses 3+ where the discharge device is a cathode-ray
tube. The circuit element may be within the base of the lamp or
discharge device or within the enclosing envelope of the lamp or
discharge device. (See Lines With Other Classes and Within This
Class, "Lamps And Discharge Devices Having A Circuit Element" above). |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 46+ and 49 provide for the combination of a discharge
device and a filamentary lamp which are structurally combined in
a single unitary structure and where the lamp filament is in circuit
relation with the electrodes of the discharge device. See subclasses 46+ where
the lamp filament is connected in shunt with the discharge electrodes
and subclasses 409 and 410 where the lamp filament is connected
in series with the discharge electrodes. (Lines With Other Classes
and Within This Class, "Discharge Devices Structurally Combined
With/In Circuit Relation With Incandescent Lamps"). |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 46+ and 49 provide for discharge devices which include
an electric heater (e.g., the cathode heater filament for an indirectly
heated cathode, or other heater) which is connected in circuit relationship
with the discharge electrodes. See subclasses 46+ where the
heater is connected in shunt to the discharge electrodes and subclass
49 where the heater is in series with the discharge electrodes.
Not included in Class 313 in accordance with the line stated in
this section are discharge devices having a directly heated or filamentary cathode
which is necessarily in series with the discharge electrodes. (Lines
With Other Classes and Within This Class, "Discharge Devices
With Cathode Heater Or Other Structurally Combined Heater In Circuit
Relation") |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 32+ for lightning arrestors having a space discharge
device and circuit impedance element structurally combined to make
an integral unit. (Lines With Other Classes and Within This Class, "Insulators With
Arcing Devices," the excluded types of lightning arresters.) |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 1 through 11,12.1, 13.1-17, and 364-410 for miscellaneous systems
for supplying electric current and/or potential to a cathode-ray
tube, subclasses 3+ and 32+ for electric lamp
and discharge devices which have a circuit element structurally
combined with the lamp or discharge device, subclasses 76 to 363
for miscellaneous systems for supplying electric current and/or
potential to electric lamps, and to discharge devices of the gas
or vapor type, and subclass 411 for power supplies utilizing the
magnetic energy of an output transformer of a cathode ray deflection
circuit. (Lines With Other Classes and Within This Class, "Gas
Pumps And Fans, Lamp And Discharge Device Systems," for
discharge devices and lamp systems.) |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 364+ is the generic place for testing electric lamps
or discharge devices. |
| 327, | Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, " appropriate subclasses for miscellaneous
systems employing space discharge active element devices. (Lines
With Other Classes and Within This Class, "Gas Pumps And
Fans, Lamp And Discharge Device Systems," for discharge
devices and lamp systems.) |
| 331, | Oscillators,
subclass 5 for magnetron oscillator with automatic frequency
stabilization; subclasses 6+ for Klystron oscillator with automatic
frequency stabilization; subclass 78 for electric noise generators
using gas tubes; subclasses 79+ for beam tube oscillators;
subclass 98 for oscillators using disk seal tube; subclasses 126+ for
oscillator using gaseous space discharge device; and subclass 184
for oscillator using unique space discharge device. |
| 331, | Oscillators, appropriate subclasses for electrical oscillators utilizing
space discharge devices of particular construction, especially
subclasses 6+ and 79+ for beam tube oscillators, subclasses
5 and 86+ for magnetron type oscillators, subclasses 78
and 126+ for gaseous space discharge type oscillators,
subclass 98 for oscillators utilizing disk seal tubes enclosed by
distributed parameter resonators, and subclass 184 for oscillators
utilizing a space discharge device of particular construction. (Lines
With Other Classes and Within This Class, "Gas Pumps And
Fans, Lamp And Discharge Device Systems," for discharge
devices and lamp systems.) |
| 335, | Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets,
subclasses 210+ provides for electromagnets designed for use with
electric lamps and discharge devices. Such magnets include those
used with the cathode-ray tubes classified in subclasses 75+ of Class
313 to deflect the cathode ray beam, those used with the cathode
ray tubes classified in subclasses 441+ to focus, concentrate
or accelerate the cathode ray, and those used with the other discharge
devices and lamps in subclasses 153+. (Lines With Other
Classes and Within This Class, "Deflection And Focusing Magnet") |
| 335, | Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets,
subclasses 210+ for electromagnets for focusing and deflecting. |
| 337, | Electricity: Electrothermally or Thermally Actuated
Switches,
subclasses 28+ for combined thermal switches and lightning arrestors.
(Lines With Other Classes and Within This Class, "Insulators
With Arcing Devices," the excluded types of lightning arresters.) |
| 338, | Electrical Resistors, appropriate subclasses, for electrical resistors, per se.
Some of the resistance elements in Class 338 are somewhat analogous
to the filaments used in electric lamps and space discharge devices.
Note that
subclasses 500+ in Class 252 provides for electrically conductive
or emissive compositions which include resistance defined solely
by their composition. |
| 347, | Incremental Printing of Symbolic Information,
subclasses 121+ and 226+ for cathode ray discharge devices
provided with means for making a record of the trace of the cathode
beam (usually means for impressing the beam upon a photographic
film or means for impressing the trace made upon a fluorescent screen
upon a photographic film) irrespective of whether the recording
means is within or without the envelope of the cathode-ray device.
(Lines With Other Classes and Within This Class, "Cathode Ray
Oscillographs"). |
| 348, | Television,
subclasses 818+ for cathode-ray tubes of the signal receiving type
and provided with a shield or envelope protective means. (Lines
With Other Classes and Within This Class, "Combined With
A Separable Casing, Jacket, Shield, Or Envelope Protective Means"). |
| 348, | Television,
subclasses 373+ and 825+ for cathode-ray tubes utilized
in television systems and provided with a supporting means. (Lines With
Other Classes and Within This Class, "Combined With a Support"). |
| 348, | Television,
subclasses 335+ and 832+ for cathode-ray tubes utilized
in television systems and combined with an optical device. (Lines
With Other Classes and Within This Class, "Combined With
Optical Device or Having Special Ray Transparent Envelope etc.") |
| 361, | Electricity: Electrical Systems and Devices,
subclasses 117+ for lightning arrester; and subclasses 271+ for
condensers distinguished from discharge devices. |
| 361, | Electricity: Electrical Systems and Devices,
subclasses 271+ for electric condensers, per se. (Lines With Other
Classes and Within This Class, "Distinction Between Discharge Devices
And Electric Condensers, etc.") |
| 361, | Electricity: Electrical Systems and Devices,
subclasses 117+ for the lightning arresters generally. (Lines
With Other Classes and Within This Class, "Insulators With
Arcing Devices," the excluded types of lightning arresters.) |
| 362, | Illumination, where the second envelope wall is not integral with the
lamp envelope, that is, it is removable therefrom;
subclass 363 for means for surrounding a light source wherein said
means is made of light pervious material. See Class 362 or one
of the classes specified in the notes to that class. (Lines With
Other Classes and Within This Class, G, "Combined With
a Separable Casing, Jacket, Shield, or Envelope Protective Means"). |
| 362, | Illumination, or one of the classes specified in the notes thereto, provides
for all lamps including those of the discharge device type, which have
a separable casing, jacket or enclosure about the lamp and which
include means to modify the temperature of the lamp; see especially
subclasses 294 and 373. (Lines With Other Classes and Within This
Class, Temperature Modifying Means--With Enclosing Casing Or Jacket). |
| 362, | Illumination, or one of the classes specified in the notes to
that class for lamps including discharge device lamps combined with
a supporting means for the lamp (Lines With Other Classes and Within
This Class, "Combined With A Support"). |
| 362, | Illumination, or one of the classes specified in the notes thereto
provides for all combinations of lamps including those of the discharge device
type in combination with separable casing, jacket, shield or enclosure.
(Lines With Other Classes and Within This Class, "Combined
With A Separable Casing, Jacket, Shield, Or Envelope Protective
Means"). |
| 362, | Illumination, for lamps combined with a support; for lamps combined with
a separable casing or jacket and having temperature modifying means;
for lamps combined with a separable casing, jacket, shield or enclosure; for
lamps with separable optical devices, light shade, light obscuring
means, lamp protector or other illuminating devices; and
subclass 84 for illuminating devices with a fluorescent or phosphorescent
material. (Lines With Other Classes and Within This Class, "Fluorescent And
Phosphorescent Coating And Compositions"). |
| 362, | Illumination, or one of the classes specified in the notes thereto,
provides for all lamps including those of the discharge device which
have a separable optical device, light shade, light obscuring means,
lamp protector or other illuminating device combined therewith.
In the art in Class 362, and the related classes specified in the
notes thereto will be found devices such as lanterns, projectors,
signal lights, etc., where the lamp may be readily replaced or changed without
modifying or altering the structure of the electric lamp. The devices
in Class 362 and the classes referred to in the notes thereto ordinarily
include an electrical socket or other connector into which the lamp
base is placed. (Lines With Other Classes and Within This Class,
"Combined With Optical Device Or Having Special Ray Transparent
Envelope, etc.") |
| 376, | Induced Nuclear Reactions: Processes, Systems,
and Elements, appropriate subclasses, particular
subclasses 156+ for processes of treating materials with ray energy
within a nuclear reactor, or for processes and apparatus for carrying
out nuclear changes by the use of ray or similar energy. See subclasses
100+ for fusion reactions and reactors and subclasses 347+ for
fission reactions and reactors. (Lines With Other Classes and Within
This Class, "Methods and Apparatus for Subjecting Objects,
Articles and Materials to Ray Energy or Electrons or Ions Generated
by Discharge Devices or Lamps," for such methods and apparatus.) |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclasses 193+ for source supports, per se. ("Combined
With A Separable Casing, Jacket, Shield, Or Envelope Protective
Means"). |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclasses 91+ for electronic circuits; subclasses 119+ for
sources; and subclasses 193+ for source supports. ("X-ray
Tubes And Targets"). |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclasses 91+ provides for systems for supplying electric current
and/or potential to X-ray tubes. (Lines With Other Classes
and Within This Class, "Gas Pumps And Fans, Lamp And Discharge
Device Systems," for discharge devices and lamp systems.) |
| 378, | X-Ray or Gamma Ray Systems or Devices, appropriate subclasses for subjecting objects to X-rays
or gamma rays. (Lines With Other Classes and Within This Class, "Methods
and Apparatus for Subjecting Objects, Articles And Materials to
Ray Energy or Electrons or Ions Generated by Discharge Devices or
Lamps," for such methods and apparatus.) |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclasses 119+ for sources, combined with supports. (Lines With
Other Classes and Within This Class, "Combined With a Support"). |
| 392, | Electric Resistance Heating Devices,
subclasses 407+ provides for electrical heaters which include an
electric lamp and a reflector, casing or other housing. See above
for electric lamps provided with structure for holding a material
to be heated. (Lines With Other Classes and Within This Class, "Combined With
A Separable Casing, Jacket, Shield, Or Envelope Protective Means"). |
| 403, | Joints and Connections, appropriate subclasses for a joint between a metal
member and a glass or ceramic member. (Lines With Other Classes
and Within This Class, "Bushings, Glass-to-Metal Seals
and Lead-In Conductors"). |
| 403, | Joints and Connections, appropriate subclasses for the joint between an
envelope and its attached base where no structure of the envelope
other than that providing for the joint is included. See References
to Other Classes for other classes which provide for joints. (Lines
With Other Classes and Within This Class, "With Attached
Base"). |
| 403, | Joints and Connections, is a class of joints of general application. See
the search notes thereto for other classes which provide for joints
or connections. (Lines With Other Classes and Within This Class, "Electrodes Combined
With Connector Structure") |
| 417, | Pumps,
subclasses 48+ provides for pumps utilizing a space discharge.
See subclass 49 of Class 417 for a statement of the line. (Lines With
Other Classes and Within This Class, "Gas Pumps And Fans") |
| 417, | Pumps,
subclasses 48+ for electrical or getter-type means. (Lines With
Other Classes and Within This Class, "Getters And Gas or
Vapor Generating Materials"). |
| 420, | Alloys or Metallic Compositions, appropriate subclasses for metal strands, filaments
or wire made of alloys or single metals. (Lines With Other Classes
and Within This Class, "Coated Electrodes Or Shields And
Compositions") |
| 423, | Chemistry of Inorganic Compounds,
subclasses 445+ provides for carbon, per se, and carbon articles
defined solely in terms of the material from which they are made.
(Lines With Other Classes and Within This Class, "Coated
Electrodes or Shields And Compositions"). |
| 427, | Coating Processes,
subclasses 58+ for processes of coating, per se, wherein the product
is an electrical product. (Lines With Other Classes and Within This
Class, "Methods And Apparatus For Manufacturing Electrodes") |
| 427, | Coating Processes,
subclasses 64+ for coating processes, per se, wherein the product
is an electrical product with a fluorescent or phosphorescent base
or coating. (Lines With Other Classes and Within This Class, "Fluorescent And
Phosphorescent Coating And Compositions"). |
| 427, | Coating Processes,
subclasses 58+ for processes of coating, per se, wherein the product
is an electrical product. (Lines With Other Classes and Within This
Class, "Coated Electrodes or Shields And Compositions"). |
| 428, | Stock Material or Miscellaneous Articles,
subclasses 34.1+ for hollow articles (e.g., lamp bulbs) with a coating
thereon; subclasses 426+ for laminated glass structure;
subclasses 913 and 917 for phosphorescent, fluorescent, and electroluminescent;
and subclasses 375+ for coated conductors or conductors
or emitters or electrodes with emissive coatings thereon. |
| 428, | Stock Material or Miscellaneous Articles,
subclasses 544+ is the generic place for all metal or adjacent
metals containing materials not elsewhere classified. (Lines With
Other Classes and Within This Class, "Bushings, Glass-to-Metal
Seals and Lead-In Conductors"). |
| 428, | Stock Material or Miscellaneous Articles,
subclasses 375+ and 544+ provide for a rod, strand, fiber
or filament with a coating thereon, which coated products may be
electron emissive or miscellaneous conductors such as metal rods,
wires or filaments with various coating thereon, including insulating
coatings and also for electrodes which are merely composite laminates
defined in terms of the composition of the components. (Lines With
Other Classes and Within This Class, "Coated Electrodes
or Shields And Compositions"). |
| 428, | Stock Material or Miscellaneous Articles,
subclasses 34.1+ for a hollow or container type article (e.g., lamp
bulb) defined only as a base with a coating thereon, subclasses
426+ for a nonstructural composite web or sheet including a
layer of glass, and subclasses 913 and 917 (cross-reference art
collections) for a product which is responsive to light (e.g., fluorescent
or phosphorescent) and a product which is electro-luminescent.
(Lines With Other Classes and Within This Class, "Defined
Only By Composition"). |
| 431, | Combustion,
subclasses 358+ for flash lamps in which a solid fuel is burned
and which have electric igniting means for initiating combustion
of the fuel, e.g., "photoflash bulbs". The distinction
between a photoflash bulb found in Class 431, Combustion, subclasses
358+ and an electric lamp is that in the photoflash bulb there
is a solid fuel usually aluminum or magnesium foil and an electric
filament for igniting the foil so that the foil burns and the light
is due to the combustion of the foil. In other types of photoflash
bulbs the filament is made of a material which burns and the light
is due to the combustion of the filament. In an incandescent electric
lamp the light is due only to the heat generated by the current
passing through the filament and the filament is not intended to
be burned. The lamp ordinarily is provided with a noncombustible
gas or a vacuum to prevent combustion of the filament while the
devices in Class 431 are provided with an atmosphere of combustible
gas. |
| 439, | Electrical Connectors, appropriate subclass providing for the electrical
connector structure. For example, where an electrode is composed of
two rod-like portions and one portion is provided with a hollow
screw threaded socket and the other is provided with the screw threaded end
to fit into the socket, the patent is classified elsewhere. However,
if the structure includes means such as a portion of higher electrical conductivity
to insure good electrical contact between the portions, the patent
would be classified in Class 439. (Lines With Other Classes and
Wtihin This Class, M, Electrodes And Shields). |
| 439, | Electrical Connectors, for device with separable electrical connector, for device
with electrical connector and for electrode with connector structure;
and for electrode and shield with joint between parts;
subclasses 607.01 through 607.05for connector with anti-inductive shield; and
subclasses 611+ for connector having vitreous envelope
secured thereto. |
| 439, | Electrical Connectors, provides for an electrical connector, per se. Also
included in that class is a combination not provided for elsewhere,
or of such nature as to be best grouped with the electrical connector.
For example, a "named" lamp combined with a specific
connector is included in Class 439. The reference to a "filament" or
to the support structure is considered to make a claimed lamp "significant" whereas
a reference to the "envelope" is not considered
to be more than naming of the lamp. Further examples, included
in Class 439 is the combination of an electrical lamp base with
an "incandescent" lamp, a "fluorescent" lamp,
or a "gas filled" lamp, provided that there is
no claimed reference to other illuminating portions of the lamp.
Reference to the particular shape of the envelope will not exclude placement
of a patent from Class 439 if no structure is recited which limits
the envelope to use with a lamp or discharge device. (Lines With
Other Classes and Within This Class, "Lamps And Discharge
Devices Combined With A Separable Electric Connector"). |
| 439, | Electrical Connectors, provides for a device having significant electrical connector
structure combined with named other structure or with such other
structure as is not provided for elsewhere. See the discussion
above. See especially
subclasses 611+ for the combination of an electrical connector
with a vitreous envelope secured thereto. (Lines With Other Classes
and Within This Class, "Lamps And Discharge Devices Which
Include Electrical Connector Structure"). |
| 439, | Electrical Connectors, provides for a device having electrical connector structure
where no significant structure for the device is recited other
than that necessary to provide for or to cooperate with electrical
connector structure. This class includes an electrode for an
electric lamp or space discharge device where the only structure
of the electrode recited is that necessary to provide for or to
cooperate with electrical connector structure; see
subclasses 607.01 through 607.05for the combination of an electrical connector
and means to shield the connector portions from radiating electromagnetic
waves for which see. (Lines With Other Classes and Within This
Class, "Electrodes Combined With Connector Structure"). |
| 445, | Electric Lamp or Space Discharge Component or
Device Manufacturing, is the generic place for a process or an apparatus for
manufacturing an electric lamp, a discharge device, an electrode
or another part thereof. The search notes for Class 445 should
be consulted as to the other classes and subclasses which provide
for processes or apparatus used in manufacture an electric lamp,
discharge device or a part thereof; see
subclass 2 for a process which is limited to use in repairing
or reconditioning a lamp or discharge device, or to use in salvaging one
or more parts of a lamp or discharge device; subclass 61 provides
for the corresponding apparatus. (Lines With Other Classes and Within
This Class, "Methods, Apparatus For Manufacturing/Repairing
Electric Lamps or Discharge Devices or Salvaging Parts"). |
| 445, | Electric Lamp or Space Discharge Component or
Device Manufacturing,
subclasses 35+ for methods of manufacturing electrodes; and subclasses
46+ for methods of manufacturing electrodes. |
| 445, | Electric Lamp or Space Discharge Component or
Device Manufacturing, is the generic place for methods and apparatus for manufacturing electrodes
for electric lamps and discharge devices. See
subclasses 35+ and 46+ for the processes of making electrodes.
See the search notes to these subclasses for the classes which provide
for either process or apparatus for manufacturing electrodes. (Lines
With Other Classes and Within This Class, "Methods and Apparatus
For Manufacturing Electrodes.) |
| 501, | Compositions: Ceramic,
subclasses 11+ for lamp and space discharge device envelopes defined
only as being made of glass compositions and for glass compositions,
per se. (Lines With Other Classes and Within This Class, "Defined
Only By Composition"). |
SECTION V - GLOSSARY
ANODES
An electrode which acts as the positive terminal of the discharge
or which acts as the positive terminal of an electric field to cause
a discharge or accelerate the electrons in a discharge. See the
definition of cathode above, and the definition of control electrode
below.
ANTI-CATHODE
Same as "target" or anode. Used in
reference to X-ray tube anodes.
AUXILIARY STARTING ELECTRODE
An electrode designed for use in a discharge device having
at least two principal discharge electrodes and the auxiliary starting
electrode. The starting electrode is designed to be 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 so that a discharge between the principal electrodes
can be established. An auxiliary starting electrode does not necessarily
differ in structure or material from any other electrode. Auxiliary
starting electrodes are usually simple electrodes, a wire or rod, and
are usually not formed from as heavy or strong material as the principal
electrodes. Usually an auxiliary starting electrode is placed close
to a principal electrode so that the discharge may be initiated
between the auxiliary starting electrode and the main electrode
at a smaller voltage than is necessary to initiate the discharge
between the principal electrodes. The auxiliary starting electrode
may be supplied with current only during the starting period or
it may be supplied with current during the operation of the device
so that a continuous discharge takes place between it an done of
the principal electrodes to assure ionization in the discharge space
so that the discharge between the principal electrodes may take
place at the proper time. The latter type of auxiliary starting
electrodes are also known as "holding electrodes".
Where a plurality of auxiliary starting electrodes are used, they
may be spaced at intervals between the principal electrodes so that
the discharge may first be established between one principal electrode and
the nearer auxiliary starting electrode, then to a more remote auxiliary
starting electrode and so on until the discharge is established
between the principal electrodes. If a plurality of auxiliary starting
electrodes are used, one may be placed close to each of a plurality
of principal electrodes. In as much as the determination of whether
or not an electrode is an auxiliary starting electrode depends upon
the circuit connections to the discharge device, and this class
includes only the structure of the discharge device, per se, only
in subclasses 170+ (liquid electrode discharge devices)
and subclasses 596+ and 601+ (gas or vapor-type
discharge devices) is the classification based upon one of the electrodes
being an auxiliary starting electrode.
BASE
A member attached to the lamp or discharge device so that
it may be attached to a supporting socket or supported on a surface.
The base usually includes electrical connector means for connecting
the lamp or discharge device in a circuit. Where the lamp or discharge
device is provided with an envelope, the base is usually attached
to the envelope, as by cementing, or the envelope is formed so as
to have an integral base portion.
CASING
A container or enclosure for a lamp or discharge device, or
a part thereof. See Envelope above.
CATHODE
An electrode which acts as the negative device. In some discharge
devices, such as spark gaps, there is no difference in structure
between the cathode and anode. Consequently, the use of the words "cathode" and "anode" have
been avoided except where there is some significance in structure
between the two electrodes.
CATHODE RAY DEVICE
A discharge device having means for forming the electric
discharge into a restricted beam or ray, usually pencil-like.
CATHANODE
An electrode designed to serve as an anode with respect to
a cathode and to be heated by the discharge so that another surface
of the electrode emits electrons to a second anode. See subclass
305 for discharge devices having a cathanode.
CONTROL ELECTRODE
An electrode designed to influence or control the discharge
current flowing between other electrodes. It may depend for its
effect on either its electro-static effect or on the current flow
thereto. The most common type of control electrode is the control
grid. Since, however, the grid may be used as an anode, and the
anode as a grid in many types of discharge devices, the use of the
expression "control electrode" has been avoided
where possible and similar structures placed together irrespective
of whether the disclosure indicated that the grid electrode is to
be used as an anode or control electrode. Patents relating to discharge
devices having one or more grid electrodes interposed between a
cathode and an anode are classified in subclasses 293+ or
in the subclasses referred to in the notes to these subclasses.
See subclass 308 and the subclasses referred to in the notes thereto for
other discharge devices having a control electrode.
DIRECTLY HEATED CATHODE:
A filament designed to have its terminals connected to
a source of current, the filament being heated by the current passing
through it.
ELECTRIC LAMP
A device for converting electrical energy into visible light
or ultraviolet light. Most lamps also generate infrared rays, but
infrared ray generators are included only when they have structure
analogous to electric lamps or electric space discharge devices.
See the notes below. Electric lamps may be in the form of electric space
discharge devices, for which see the next paragraph.
ELECTRIC SPACE DISCHARGE DEVICES
(the shorter expression "DISCHARGE DEVICES" is used
in these definitions) 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.
ELECTRODE
A filament or glower of an electric lamp or a member arranged
to emit, and/or collect, and/or control the movement
of electrons or ions in a discharge device.
EMISSIVE CATHODE
A low work function electrode.
ENVELOPE
A gas tight enclosure for an electric lamp or discharge device.
It may be evacuated or filled with a gas or vapor. In general
the distinction between an envelope and a mere jacket, casing or
housing is that the envelope is sealed, so as to be gas tight.
FILAMENT
A wire, ribbon or rod conducting member. It may be made
of metal or nonmetal. In this class filaments, per se, are classified
in subclasses 341+ irrespective of whether the filament
is to be used in a lamp or discharge device, and irrespective of
whether the filament is to be heated by passing a current through
the filament (directly heated cathode) or is to be heated by the
discharge in a discharge device (see thermionic cathode).
FLUORESCENT OR PHOSPHORESCENT MATERIAL
A material which absorbs radiant energy of one wave length
(e.g., light) and is excited thereby to cause it to emit radiant
energy of another wave length (e.g., light of another wave length),
or a material which is excitable by the impact of electrons, ions,
or analogous energy (e.g., gamma rays) thereon to emit light energy
without becoming incandescent.
GAS OR VAPOR GENERATING MATERIAL
Solid or liquid material which is placed within the envelope
and generates a gas or vapor by virtue of a chemical change, by
volatilization, or by giving off an absorbed gas or vapor. It may
do this during normal operation or it may be caused to do so by
treatment preliminary to placing the device in operation.
GETTERS
Materials which, when used in closed containers, reduce the
gas or vapor content of the container. A getter may react with
the gas or vapor in the container to form a solid nonvaporizable
material, or to adsorb or absorb the gas or vapor, or may reduce
the amount of the gas or vapor in the container in any other way.
The material may be a getter for one gas or vapor and may not have any
effect upon another gas or vapor.
GLOWER
Any body made of a material which when heated by the passage
of an electric current therethrough emits light rays. The term
glower includes filaments and also includes other bodies which are
not of filamentary dimensions such as, rods and bars made of second
class conductors.
GRID ELECTRODE
An electrode having one or more apertures therein, usually
formed of open-work material, such as wire mesh, perforated sheet
material, or of wires or bars as of coiled wire, or other foraminous
structure, and sometimes used as the control electrode in a discharge
device. As pointed out in the definition of "control electrode" above,
the terms "grid electrode" and "control
electrode" are not synonymous in this class.
HEATED CATHODE
Either a directly heated cathode or an indirectly heated cathode.
HOLDING ELECTRODES
See the definition of auxiliary starting electrode above.
INCANDESCENT LAMP
Lamps which are provided with a filament or glower adapted
to be heated to incandescence by the passage of an electric current
therethrough.
INDIRECTLY-HEATED CATHODE (Equipotential cathode)
A cathode designed to be heated to its emitting temperature
by a separate heating element.
IONIC CATHODE
A virtual cathode formed by a discharge in a gas or vapor
between two electrodes, the discharge serving to supply electrons
to a third electrode. See subclass 588 for discharge devices having
an ionic cathode.
JACKET
Same as casing above.
LEAD-IN
The conductor used to transmit electric current or potential
from the exterior of the envelope or casing into the interior of
the envelope or casing. Where the envelope is made of glass it usually
consists of a conductor which passes through the wall of the envelope
and which is sealed to the glass by a glass-to-metal seal.
LOW WORK FUNCTION ELECTRODE (cold cathode, cathodes containing
or coated with electron emissive material)
A cathode containing or coated with a material which readily
emits electrons, i.e., a material which has a low work function.
Examples of such materials are the alkali metals and their oxides,
alkaline earth metals and their oxides, thorium, magnesium. The
expression "low work function electrode" includes
thermionic electrodes which contain or are coated with electron
emissive material, photosensitive cathodes, secondary emissive cathodes
as well as cathodes which emit electrons without being heated.
PHOTO-CELLS
A device to be used in an electrical circuit which is
provided with means responsive to light or analogous rays for altering
the operation of the device. The only photocells included in this
class are photosensitive discharge devices and photosensitive electric
lamps.
PHOTO-SENSITIVE
A device provided with means sensitive to light or analogous
rays for altering the operation of the device.
PHOTO-SENSITIVE CATHODE
An electrode which emits electrons when subjected to the
action of light or analogous rays. Discharge devices having a photosensitive
cathode or other photosensitive electrode are classified in subclasses
523+ in this class. See photosensitive electrode above.
See the class definition for the classification of photosensitive
cathodes, per se.
PHOTO-SENSITIVE ELECTRODE
An electrode which has its electrical properties changed by
the action of light or analogous ray energy. The ray energy may
be X-rays, ultraviolet rays, infrared rays, or any analogous radiation.
See the class definition for the classification of photosensitive
electrodes, per se.
PYRO-ELECTRIC LAMP
An electric lamp which has as the light emitting body
a material which is a second class conductor. The lamps are designed
to have the pyro-electric body heated by a separate source until
the pyro-electric material becomes conductive and then the current
flow through the pyro-electric body maintains the second class conductor material
at a temperature at which it emits light.
SECOND CLASS CONDUCTORS
A material having a very high electrical resistance at ordinary
temperatures and a low resistance when heated. Glowers formed of
oxides, such as Th2 or the rare earth oxides,
used in the pyro-electric (e.g., Nernst) type of incandescent lamp
are examples of second class conductors.
SECONDARY EMISSIVE CATHODE
A cathode designed to emit electrons by virtue of the impact
by electrons upon the electron emissive surface. See the class
definition for the classification of secondary emissive cathodes,
per se. See cathanode below.
SHIELDS
Structures used in lamps and discharge devices to modify
the electrical characteristics thereof, or structures which are
used to protect the lamp or discharge device from external influences,
or structures which are used to protect parts of the device from
influences, such as electron bombardment, originating in another
part of the device, and other structures used for protective purposes.
Shields do not include mere electrodes even though the electrode
is defined as being a shielding electrode. Where an electrode of
a discharge device is provided with shielding structure in addition
to the structure provided for influencing the electric space discharge,
such additional structure is considered to be shielding structure.
Examples of such additional shielding are where an indirectly heated
cathode is provided with a flange for shielding the discharge space
from the influence of the cathode heater current, or where an anode,
grid, or lead wire is provided with shielding means to shield the
lead-in wires from the effects of electrostatic fields. Metal or
conductive envelopes for discharge devices are not considered to
be shields where the envelope is designed to function as an electrode
of the discharge device, such as an anode. Where the metal or conductive
envelope is disclosed as being provided for shielding purposes and
not an electrode, the envelope is considered to be a shield.
SPARK PLUG
A unitary spark gap having a plurality of insulated electrodes
arranged out of contact with each other so that the space discharge
is a "jump spark" and usually having a shell or
sleeve designed to be attached to an opening in an internal combustion
engine or other device, the shell or sleeve carrying one or more
electrodes within it which are insulated from the shell or sleeve
by an insulating bushing or other insulation. The shell or sleeve often
carries an electrode which cooperates with the other insulated electrode
to form the jump-spark gap. Included are the devices known as spark
plugs usually used on the ordinary automotive internal combustion engine.
Also included are spark plugs for other uses which are similar
in structure. It does not include ignitors where the spark is made
by moving the electrodes into contact and then separating them to
draw the spark. It does not include ignitors which are not similar
in structure to the automobile spark plug even if they are of the
jump spark type. Spark plugs having only a single electrode which
are designed to be used with some other device, as the cylinder
head, so as to form a jump spark therewith are also excluded.
TARGET
In an X-ray tube, cathode-ray tube, or other beam type discharge
device, the anode or the member against which the principal electron
or ion stream impinges. See the definition of anode above.
THERMIONIC CATHODE
A cathode designed to operate at an elevated temperature.
The expression, "thermionic cathode" includes directly
heated cathodes, indirectly heated cathodes, and also cathodes which
are designed to be heated by ionic bombardment to the electron emitting
temperature.
THREE OR MORE ELECTRODE DISCHARGE DEVICES
Any discharge device having three or more electrodes whether
all of the electrodes have lead-wires for connection to the supply
circuit or not. In some of the three or more electrode discharge
devices, the electrodes are arranged with one or more electrodes
disposed in the interelectrode space or in the discharge path between two
other electrodes, and have only the outer electrodes provided with
lead-wires for connecting to the supply circuit, the discharge passing
from the outer electrodes to the interposed electrode so that the
discharge device has a plurality of series connected discharge spaces.
X-RAY TUBE
A discharge device designed to generate X-rays.
SUBCLASSES
![[List of Patents for class 313 subclass 1]](../ps.gif) 1 | PLURAL UNIT: |
| | This subclass is indented under the class definition. Subject matter wherein the plurality of electric lamps or
discharge devices or an electric lamp and a discharge device are
structurally combined in a single device to form a single unitary
device.
| | (1)
Note. This or the indented subclasses do not include
the following subject matter even though such subject matter is within
the subclass definition: (a) An incandescent
lamp having a plurality of filaments or glowers all within the same envelope
is not included in this or the indented subclasses but will be found
in subclass 316 below, or in one of the subclasses specified
in the search notes of that subclass; (b)
Structural combinations of an incandescent lamp and a discharge
device where the filament of the lamp is connected in shunt with
the discharge electrodes of the discharge device. See
Class 315, Electric Lamp and Discharge Devices:
Systems, subclasses 46+ for this subject matter; (c) Structural
combinations of an incandescent lamp and a discharge device where the
lamp filament is connected in series with the discharge electrodes
of the discharge device. See Class 315, Electric Lamp
and Discharge Devices: Systems, subclass 49 for
this subject matter; (d) Structural
combinations consisting of a firing gap of a spark plug, and
an intensifier gap connected in series therewith, see subclasses
123+ for this subject matter. |
| | (2)
Note. In many of the devices in this and the indented
subclasses the plurality of devices are enclosed within the same envelope. |
| | (3)
Note. Where the subject matter includes a plurality
of discharge devices which are structurally combined, to
be classified in this or the indented subclasses there must not
be a common electrode for the plurality of discharge devices. For
example, discharge devices having a single cathode and
a plurality of anodes which cooperate with the single cathode are
excluded from this and the indented subclasses even though the disclosure states
that the device may be used in place of a plurality of discharge
device. Included in this and the indented subclasses are
structural combinations of plural discharge devices and lamps or
a discharge device and a lamp where there is an interelectrode connection
between the electrodes of the different devices. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 306, | and the subclasses specified in the notes thereto
for discharge devices which are provided with a plurality of anodes
and/or cathodes. Included in subclasses 306+ are
space discharge devices having a plurality of similar gaps connected
in series, such as for example, a row of spaced
sphere electrodes in which a discharge takes place along the length
of the row. |
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 7+ , for the combination of a consumable electrode
discharge device (e.g., an arc
lamp or similar device having means for feeding the electrodes together
as they are consumed) and another type of discharge device
or electric lamp. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 3+ , 32, 35+, and
64+ for the structural combination of a plurality of discharge devices, or
lamps, or a discharge device and a lamp where the structural combination
includes a circuit element (e.g., switch, impedance, etc.), see
subclasses 3+ where one of the devices is a cathode-ray
tube, subclass 32 where the combination includes a lamp
and a discharge device, subclasses 35+ where the
combination includes a plurality of discharge devices, and
subclasses 64+ where the combination includes a plurality
of lamp filaments (multifilament lamps). In
the devices in Class 315, the circuit element may be connected
between electrodes of different ones of the combined devices, or
to an electrode of one of the devices, or not connected
to any of the combined devices but be merely mounted in the envelope, base
or other part of the unitary device. For the structural
combinations of incandescent lamps and discharge devices connected
in circuit relation, which are classified in Class 315, see (1) Note, parts
b and c, above. |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclasses 9 , 92 and 193+ for plural source
systems or devices. |
|
| | |
| 2.1 | Cathode-ray tube: |
| | This subclass is indented under subclass 1. Subject matter in which one of the devices is a cathode-ray
generating device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 364+, | for cathode ray devices, per se. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 3+ for devices which include the structural combination
of a plurality of cathode-ray tubes and which have a circuit
element (e.g., switch, inductance, condensers, resistances, etc.) structurally combined
therewith. See especially subclasses 5.14+ for
cathode-ray tube circuits wherein a plurality of rays pass
through or in a hollow distributed parameter device, such
as a wave guide, cavity resonator, or coaxial line; and
subclasses 5.16+, 5.27, 5.28, and
5.39+ for cathode-ray tube system including
a plurality of hollow distributed parameter devices having a cathode
ray passing through or in. See subclass 9 for systems for
supplying electric current and/or potential to a plurality
of cathode-ray tubes. |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclass 92 for the structural combination of a plurality of
X-ray tubes and a circuit element which is combined therewith. |
|
| | |
| 3 | Inter-electrode connection: |
| | This subclass is indented under subclass 1. Subject matter in which one electrode of one of the devices
is electrically connected to an electrode of another of the devices.
| | (1)
Note. Excluded from this subclass and class are
structural combinations of a discharge device and an incandescent lamp
where the lamp filament is connected either in series or in shunt
relation with the discharge electrodes. The excluded devices
will be found in Class 315, Electric Lamp and Discharge Devices:
Systems, subclasses 46+ where the filament is
connected in shunt relation to the discharge electrodes and in subclass
49 where the filament is connected in series relation with the discharge
electrodes. |
| | (2)
Note. If the connection between the electrodes includes
a circuit element such as a resistor, capacitor, inductance, switch, or
the like the combination is not classified in this class but in
Class 315. The devices in this subclass have a conductive
connection but no more. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems, (see (1) Note) above, and
subclasses 3+ , 32+, 35+, 64+ for
the structural combination of a plurality of discharge devices, or lamps, or
a discharge device and a lamp where the structural combination includes
a circuit element (e.g., switch, impedance, etc.), connected between
electrodes of different ones of such devices. See the
notes to subclass 1 for the subclasses which provide for the different
types of devices. |
|
| | |
| 5 | Control electrode unit: |
| | This subclass is indented under subclass 1. Subject matter in which one of the structurally combined
devices is a discharge device with a control electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 308, | and the subclasses specified in the notes thereto
for other discharge devices which are provided with a control electrode. |
|
| | |
| 6 | Plural control electrode units: |
| | This subclass is indented under subclass 5. Subject matter which includes a plurality of discharge devices
each having a control electrode.
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 3+ and 35+ where the structural combination also
includes a circuit element (e.g., switch, impedance, etc.), see
subclasses 3+ where the devices are cathode-ray
tubes and subclasses 35+ for other plural discharge devices. |
|
| | |
| 7 | WITH EVACUATING PUMP: |
| | This subclass is indented under the class definition. Subject matter where the lamp or discharge device is provided
with an envelope and has an evacuating pump connected to the envelope
for evacuating the envelope.
| | (1)
Note. In the devices in this subclass the evacuating
pump is designed for connection to the lamp or discharge device
during the use of the lamp or discharge device. Where
the arrangement is only for use during the manufacturing of the lamp
or discharge device see the reference to Class 226 below. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 549+, | for devices under the class definition provided
with envelopes and having a getter, a gas or vapor generating means
or a pressure regulating means associated therewith. |
SEE OR SEARCH CLASS:
| 53, | Package Making,
subclasses 79+ and 403+ for methods of and apparatus
for gas filling and/or evacuating receptacles combined
with closing including lamps and discharge devices, and
see the Notes to subclass 403 for the disposition of related art. |
| 141, | Fluent Material Handling, With Receiver
or Receiver Coacting Means,
subclasses 4 , 8 and 65+ for methods of and
apparatus for inducing a gas or vapor into or evacuating the envelope
of an electric lamp or space discharge device. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 108+ for electric lamp or a gas or vapor type discharge
device systems where the lamp or discharge device is provided with
means for regulating the pressure within the envelope of the device
and the system includes means to supply electrical energy to the
lamp or discharge device or to control the pressure regulating means. |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclass 123 for X-ray tube systems where the X-ray
tube is provided with means for controlling the pressure within
the envelope of the tube. |
| 417, | Pumps, appropriate subclasses for miscellaneous evacuating
pumps. |
|
| | |
| 8 | ARC AND SEPARATE INCANDESCENT BODY: |
| | This subclass is indented under the class definition. Discharge devices which have a body other than an electrode, placed
adjacent to the discharge space and which is designed to be heated
to incandescence by the space discharge.
| | (1)
Note. The body which is designed to be heated to
incandescence is not designed to be connected into the circuit in
any way but is only a light emitting body. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 305, | and the subclasses specified in the notes to the
definitions of that subclass for discharge devices which have an
electrode designed to be heated by the discharge, including devices
having cathanodes. |
|
| | |
| 9 | FILAMENT AND SEPARATE INCANDESCENT BODY: |
| | This subclass is indented under the class definition. Devices having a filament and an additional body other than
an electrode designed to be heated to incandescence by the filament.
| | (1)
Note. The body designed to be heated to incandescence
is not designed to be connected in the circuit in anyway but is designed
only to be a light emitting body. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 14, | for pyroelectric type electric lamps which include
a body designed to be heated from a separate source such as an electric
filament. The body being a second class conductor and
being connected in the circuit so that when heated it will conduct
electric current and be heated by the current flowing through it. |
| 305+, | and the subclasses specified in the notes thereto
for discharge devices which have an electrode which is designed
to be heated to incandescence by the electric space discharge between
the cathode and the electrode. |
|
| | |
| 10 | WITH TEMPERATURE INDICATOR: |
| | This subclass is indented under the class definition. Subject matter where the lamp or discharge device is provided
with means to indicate the temperature of some part of the device.
SEE OR SEARCH CLASS:
| 374, | Thermal Measuring and Testing,
subclasses 100+ for temperature measurement, per se. |
|
| | |
| 11 | WITH TEMPERATURE MODIFIER: |
| | This subclass is indented under the class definition. Subject matter where a lamp, discharge device or
an electrode therefor is provided with means or is combined with
means for modifying the temperature of the device, the
electrode, or some other part thereof.
| | (1)
Note. Neither this nor any of the indented subclasses
provide for electric lamps including those of the discharge device
type, photosensitive discharge devices nor generators of
invisible radiation such as X-ray tubes, ultraviolet
ray generators in combination with a separable casing for the lamp
or device which is provided with means for modifying the temperature
of the lamp or device. See the class definition for the
classes which provide for the excluded subject matter. |
| | (2)
Note. Indented subclass 26 provides for discharge
devices and lamps which are provided with an envelope formed of two
spaced apart integral walls, the space between the walls
being evacuated, gas filled, or otherwise containing means
to modify the temperature of the lamp or discharge device.
See the class definition for the classification of double wall envelopes, per
se. |
| | (3)
Note. Discharge devices and lamps provided only
with directly heated filaments, indirectly heated cathodes
or other types of thermionic cathodes, are not included
in this or the indented subclasses. This and the indented
subclasses provide only for lamps and discharge devices which have
means in addition to the filament or cathode for modifying the temperature
of the lamp or discharge device. Note that discharge devices
having liquid electrodes (e.g., mercury vapor
device) and electric heaters therefor are in subclass 16
and discharge devices having liquid electrodes and other types of
temperature modifiers for the liquid electrode are in subclass 29. |
| | (4)
Note. See the class definition for other classes
which provide for the miscellaneous heat transfer apparatus such
as envelopes and casings for lamps or discharge devices with temperature
modifying means. |
| | (5)
Note. Discharge devices and lamps having a movable
electrode actuated by a thermally responsive means such as a thermostat, with
or without a heating means for the thermally actuated moving means, are
not classified in this and indented subclasses, but are
found in subclass 151. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 26+ for consumable electrode discharge devices provided
with temperature modifying means and the electrical systems therefor. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 50 for electric lamps and discharge devices which
are provided with means for modifying the temperature of at least part
of the lamp or discharge device, the temperature modifying
means being either combined with or forming an electrical impedance
element. In subclass 50, of Class 315 will be found, for
example, discharge devices which are provided with means
to conduct a cooling fluid to the discharge device where the conduits
for conducting the cooling fluid are arranged to form a high resistance path
between a discharge device and the source of cooling fluid. See
subclasses 112+ and the subclasses specified in the notes
to those subclasses for electric lamp and discharge device systems
wherein the lamp or discharge device is provided with means for
modifying its temperature and the system includes means to supply
current to the lamp or discharge device or to control the temperature
modifying means. |
|
| | |
| 11.5 | Spark plug type: |
| | This subclass is indented under subclass 11. Unitary devices known as spark plugs.
| | (1)
Note. See the glossary of this class definition, for
a definition of spark plugs. In general, the
spark plugs classified herein are the jump-spark type found
in the gasoline engine of an automobile. |
| | (2)
Note. This subclass contains patents relating to
spark plugs where the temperature modification of some part of the plug
is material. If the plug is provided with gaskets or joints
are of high or low heat conductivity, the patent would
be included. A plug having gaskets or joints formed of
particular materials would be classified in subclasses 144+ if it
was not stated the materials were selected for their temperature
modification properties. |
| | (3)
Note. Preheating of the gas charge (before
the spark jumps) by heat left in the spark plug from a
previous explosion stroke cycle is not basis for classification in
this subclass unless such preheating is accomplished by means which
are especially provided to alter the temperature of the spark plug. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 120, | for spark plugs having means to feed a fluid, such
as priming fluid or air, where there is no disclosure that
the temperature of the spark plug is affected by the fluid feed. |
| 126, | for spark plugs having means to move an electrode
in response to a thermal change and having no means to influence
the thermal characteristics of the spark plug. |
SEE OR SEARCH CLASS:
| 174, | Electricity: Conductors and Insulators,
subclasses 15.3 and 152 for spark plug type electrical bushings (a spark
plug with no sparking electrodes claimed) having temperature modifying
means. See subclass 15.3 where the bushing is
combined with means for feeding, circulating or distributing
a temperature modifying fluid. |
| 439, | Electrical Connectors,
subclasses 190+ and 485+ for an electrical connector, including
the spark plug type, with temperature modifying means. |
|
| | |
| 12 | Recirculating systems: |
| | This subclass is indented under subclass 11. Subject matter in which the temperature modifying means
includes a closed path for circulating the temperature modifying
means from the lamp or discharge device to a heat exchange means
and then back to the lamp or discharge device to again modify the
temperature of the lamp or discharge device.
SEE OR SEARCH CLASS:
| 165, | Heat Exchange,
subclasses 104.11+ recirculating heat exchange system of general application. |
|
| | |
| 13 | Having control means for the temperature modifier: |
| | This subclass is indented under subclass 11. Subject matter in which a control means is provided for
controlling the operation of the temperature modifying means.
| | (1)
Note. Included in this subclass are discharge devices
in casings provided with apertures which are controlled by thermostatic
means so as to regulate the amount of cooling air which flows over the
discharge device. If the thermostatic means controls an
electric circuit which in turn controls an electric circuit which in
turn controls electrical means for controlling the apertures, the
patent is excluded from this class and will be found in Class 315.
See the reference to class 315 below. |
SEE OR SEARCH CLASS:
| 165, | Heat Exchange,
subclasses 279+ for miscellaneous heat exchange apparatus provided
with automatic control means. |
| 236, | Automatic Temperature and Humidity Regulation, appropriate subclasses for automatic temperature
regulation, per se. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 117 and the subclasses specified in the notes thereto
for discharge devices and lamps which are provided with temperature
modifying means and which include electrical circuit means for controlling
the operation of the temperature modifying means. |
|
| | |
| 14 | Pyroelectric type device: |
| | This subclass is indented under subclass 11. Subject matter having a glower formed of a second class
conductor designed for connection into an electrical circuit, and
having means for heating the glower to render it conductive.
| | (1)
Note. The devices in this subclass are mostly pyroelectric
lamps. |
| | (2)
Note. See "Glossary" in the class
definition for a definition of second class conductor, glower, pyroelectric
lamps. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 9, | for devices under class definition which include
a filament and a body not designed to be connected into an electrical
circuit which is heated to incandescence by the filament. |
| 326+, | for the structure of pyroelectric glowers, per
se. |
SEE OR SEARCH CLASS:
| 252, | Compositions,
subclasses 500+ for pyroelectric glower compositions. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 115+ for pyroelectric lamp systems having an electric
heater for the glower and circuit means for controlling or supplying
electric current to the glower or the heater element, and
subclass 359 for miscellaneous systems for supplying electric current
to pyroelectric lamps. |
| 338, | Electrical Resistors,
subclasses 25+ for electrical resistors whose resistance value
is responsive to a change in ambient temperature. |
|
| | |
| 15 | Electric heater: |
| | This subclass is indented under subclass 11. Subject matter in which the temperature modifier is an electric
heater.
| | (1)
Note. This subclass does not include lamps or discharge
devices where the only heating means for the lamp or discharge device
is a light emitting filament, a directly heated or indirectly heated
cathode or other thermionic cathode or where the heating means is
a means for heating a gas or vapor generating material (e.g., a
getter). See subclasses 549+ for the
discharge devices and lamps with electric heating means for a gas
or vapor generating material. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 14, | where the lamp is a pyroelectric lamp and is provided
with an electric heater to heat the glower. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 115+ for electric lamp and discharge device systems
where the lamp or discharge device is provided with an electrical heater
to modify the temperature of the lamp or discharge device and the system
includes means to control or supply current to the heater or the lamp
or discharge device. |
|
| | |
| 16 | For liquid electrode: |
| | This subclass is indented under subclass 15. Subject matter in which the lamp or discharge device is
provided with a liquid electrode and the electric heater is provided
to heat the liquid electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 29, | for other devices under subclass 11 having liquid
electrode and having temperature modifying means for the liquid
electrode. |
| 163+, | for other liquid electrode discharge devices. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 115+ for lamp and discharge device systems where the
lamp or discharge device is provided with a liquid electrode and
an electric heater therefor, the system including means
to control or to supply current to the heater or to the lamp or
discharge device. |
|
| | |
| 17 | Double wall, jacket or casing for envelope: |
| | This subclass is indented under subclass 11. Subject matter in which a lamp or discharge device is provided
with a an integral spaced double walled envelope, and discharge
devices which are provided with envelopes and in which the means
for modifying the temperature of the discharge device includes a
jacket or casing which encloses the envelope of the device or a
portion thereof.
| | (1)
Note. Neither this nor any of the indented subclasses
provide for electric lamps including those of the discharge device
type, photosensitive discharge devices nor generators of
invisible radiation such as X-ray tubes, ultraviolet
ray generators in combination with a separable casing for the lamp
or device which is provided with means for modifying the temperature
of the lamp or device. See the class definition for the
classes which provide for the excluded subject matter. |
| | (2)
Note. The double-walled envelopes specified
above includes only walls which are spaced apart. The
double walled envelope may be provided with means for circulating
a fluid between the spaced walls or the space between the walls
may be evacuated, gas filled or filled with a heat insulating
or transmitting material. See the class definition for the
classification of double-wall envelopes, per se. |
| | (3)
Note. The jacket or casing which encloses the discharge
device or lamp must have its walls spaced from the envelope of the
lamp or discharge device. Where the device is provided with
a sleeve with heat exchange means such as radiating fins which fit
over and into contact with the envelope of the device, the
device is excluded from this and the indented subclass and will
be found in subclass 44 below. |
| | (4)
Note. Included as separable casings and jackets
are structures formed of coiled conduits which are designed to receive the
discharge device and to transfer heat to or from the envelope of
the discharge device. |
| | (5)
Note. See the class definition for other classes
which provide for the miscellaneous heat transfer apparatus such
as envelopes and casings for lamps or discharge devices which are
provided with temperature modifying means. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 44, | see (3) Note, above. |
| 312, | and the subclasses specified in the notes thereto
for devices under the class definition which are provided with an
envelope and which have a casing or jacket for the envelope. |
| 324, | and the subclasses specified in the notes thereto
for devices under the class definition which do not have an envelope
but which have a casing or jacket for the device. |
SEE OR SEARCH CLASS:
| 165, | Heat Exchange,
subclass 74 for a removable device to be heated or cooled projecting
into a casing, and subclasses 154+ for coaxial
enclosures. |
| 215, | Bottles and Jars,
subclasses 12.1+ for receptacles of glass or other ceramic or similar
materials, of the bottle, jar, or jug
type, which are encased in a protective casing or jacket
or having spaced walls. |
| 220, | Receptacles,
subclasses 2.1+ for miscellaneous envelopes, casings and jackets
designed for use with electric lamps, discharge devices
and similar devices and subclasses 415+ for miscellaneous
receptacles having double walls where the inner and outer walls are
spaced apart, with or without intervening packing or insulation. |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 26+ for discharge devices of the consumable electrode
type (e.g., arc lamps) which
are provided with means for modifying the temperature of a portion
of the device, the temperature modifying means including
a separable casing or jacket for a portion of the device. |
|
| | |
| 18 | For conductive envelope devices: |
| | This subclass is indented under subclass 17. Subject matter in which the envelope of the lamp or discharge
device is provided with an integral double wall envelope made in
whole or in part of electrically conductive material, and discharge
devices which are provided with envelopes formed in whole or in
part of electrically conductive material and in which the casing
or jacket encloses the electrically conductive portion of the envelope
or a portion thereof.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 44, | for other lamps and discharge devices under subclass
11 which have a conductive envelope and which are provided with
means for modifying the temperature of the envelope wall. Included
in subclass 44 are discharge devices which are provided with a separable
sleeve which fits about a portion of the envelope wall, the sleeve
being provided with heat exchange means (e.g., radiating
fins). |
| 246+, | for discharge devices which are provided with a
conductive envelope portion (e.g., anode) and
means to support one or more electrodes (e.g., cathode, grid) within
the conductive envelope portion usually by means of the closure
for the conductive envelope portion. |
| 317+, | for devices under the class definition having envelopes
or a part thereof made of conductive material. |
SEE OR SEARCH CLASS:
| 220, | Receptacles,
subclass 2.3 for envelopes for discharge devices and lamps which
are made in whole or in part of conductive material. |
|
| | |
| 19 | With plural electrode temperature modifying: |
| | This subclass is indented under subclass 18. Subject matter wherein the lamp or discharge device has
a plurality of electrodes and means are provided for modifying the
temperature of a plurality of the electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 23, | for other lamps and discharge devices which are
provided with a plurality of electrodes, a double wall
jacket or casing for the envelope and means for circulating a fluid
within the double wall envelope, casing, or jacket
to modify the temperature of a plurality of the electrodes. |
| 28, | for other lamps and discharge devices which are
provided with a plurality of electrodes, a double wall
envelope or a casing or jacket for the envelope and means for modifying
the temperature of a plurality of the electrodes. |
|
| | |
| 20 | With internal temperature modifying baffle: |
| | This subclass is indented under subclass 18. Subject matter where the lamp or discharge device includes
a temperature modifying baffle structure which extends across or
into the envelope.
| | (1)
Note. In some of the devices in this subclass the
baffle comprises a re-entrant portion of the envelope wall
and the temperature modifying fluid may enter the re-entrant
portion. In other of the devices, a heat transfer
device, such as a radiator member for containing a heat transfer
fluid, is enclosed within the envelope of the device. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 33, | for other lamps and discharge devices which do not
have an enclosing casing or jacket and which have an internal temperature
modifying baffle. |
| 34, | for lamps and discharge devices which do not have
an enclosing casing or jacket where the envelope is provided with
a condensing chamber or surface. |
|
| | |
| 21 | Cylindrical electrode type envelope: |
| | This subclass is indented under subclass 18. Subject matter in which the conductive envelope portion
of the lamp or discharge device is cylindrical in form and is designed
for use as one of the electrodes of the device.
| | (1)
Note. Many of the devices in this subclass are discharge
devices such as are used as the transmitting tube in radio transmitting
systems. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 246+, | for discharge devices which are provided with a
cylindrical conductive envelope portion (e.g., anode) and means
to support one or more electrodes (e.g., cathode, grid) within
the conductive envelope portion usually by means of the closure
for the cylindrical envelope portion. |
| 317+, | and the subclasses specified in the notes thereto
for other lamps and discharge devices under the class definition
in which an electrode forms a portion of the envelope. |
|
| | |
| 22 | Fluid circulation type: |
| | This subclass is indented under subclass 17. Subject matter in which the structure is designed so that
a temperature modifying fluid may be circulated in the space between
the envelope and the jacket or casing or between the walls of the
double walled envelope.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 18+, | where the envelope of the lamp or discharge device
is made in whole or part of conductive material. |
| 36, | for discharge devices and lamps which are not provided
with an envelope but which includes a jacket or casing for the discharge
device or lamp or a part thereof, and means to apply a
temperature modifying fluid to the lamp or discharge device. Some
of the devices in subclass 36 are open-air arc lamps with
casing means around portions of the lamp to direct a cooling fluid
into contact with a portion of the lamp. |
|
| | |
| 23 | Plural electrode temperature modifying: |
| | This subclass is indented under subclass 22. Subject matter where the lamp or discharge device has a
plurality of electrodes and means are provided for modifying the
temperature of a plurality of the electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 19, | where the lamp or discharge device is provided with
an envelope which is made in whole or part of a conductive material. |
| 28, | for other lamps and discharge devices which are
provided with a plurality of electrodes, a double wall
envelope or a casing or jacket for the envelope and means for modifying
the temperature of a plurality of the electrodes. |
|
| | |
| 24 | Flow directing means in casing: |
| | This subclass is indented under subclass 22. Subject matter having means (e.g., baffles) within
the casing or jacket which encloses the envelope or between the
walls of the double-walled envelope for directing the flow
of the temperature modifying fluid as it flows through the casing, jacket
or doubled envelope. |
| | |
| 25 | Sealed casing for envelope: |
| | This subclass is indented under subclass 17. Devices in which the space between the double wall envelopes
or between the envelope and the casing or jacket is sealed off from
the atmosphere and from the space within the envelope of the lamp
or discharge device.
| | (1)
Note. This subclass includes electric lamps whether
of the discharge device type or not, photosensitive discharge devices, generators
of invisible ray energy (e.g., X-ray
tubes, ultraviolet lamps, etc.) only
when the casing or jacket is integrally united with the envelope
of the device. See (1) Note to the definition
of subclass 11 with respect to the classification of such subject
matter where the casing or jacket is not integrally united. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 27, | for other discharge devices and lamps which are
provided with a double wall envelope or which have a jacket or casing
for the envelope of the device, the space between the envelope
walls or between the casing or jacket and the envelope containing
a heat conserving or heat insulating material. |
| 312, | and the subclasses specified in the notes thereto, for
miscellaneous and discharge devices which are provided with an envelope
and a casing or jacket for the envelope. |
| 317+, | for miscellaneous lamps and discharge devices which
are provided with a double-wall envelope where the heat
transmitting properties of the double wall envelope are not involved. |
|
| | |
| 26 | Integral double wall type of envelope: |
| | This subclass is indented under subclass 25. Subject matter in which the lamp or discharge device is
provided with a double wall envelope, the envelope walls
being formed as a unitary, integral body.
| | (1)
Note. Included in this subclass are lamps and discharge
devices which are provided with a double-walled envelope or
an envelope and a casing where the space between the double walls
or between the envelope and casing is evacuated or filled with a
gas or vapor. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 317+, | for miscellaneous lamps and discharge devices which
are provided with a double walled envelope where the heat transmitting
properties of the double-wall envelope are not involved. |
SEE OR SEARCH CLASS:
| 215, | Bottles and Jars,
subclass 13.1 for receptacles of the bottle or jar type made
of glass or other ceramic or similar materials and having spaced walls, with
the interwall space evacuated or filled with a gas or vapor for heat
insulation purposes. |
| 220, | Receptacles,
subclasses 2.1+ for double walled envelopes designed for use with
lamps and discharge devices. |
|
| | |
| 27 | Heat conserving or insulating type: |
| | This subclass is indented under subclass 17. Subject matter in which the space between the casing or
jacket which encloses the envelope or the space between the double-walled
envelope, includes means for preventing the flow of heat to
or from the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 25+, | where the space between the double walls or between
the envelope and the casing or jacket is sealed off from the atmosphere
and from the space within the envelope of the device.
The sealed off space may be evacuated or filled with a gas or vapor.
Note indented subclass 26 for discharge devices and lamps provided
with an integral double-wall envelope. |
SEE OR SEARCH CLASS:
| 215, | Bottles and Jars,
subclass 13.1 for receptacles of the bottle or jar type made
of glass or other ceramic or similar material and having spaced
walls with the interwall space containing a heat insulating means. |
| 220, | Receptacles,
subclasses 2.1+ for double-walled envelopes designed for
use for lamps and discharge devices, subclasses 415+ for
miscellaneous receptacles having double-walls where the inner
and outer walls are spaced apart and the intervening space contains
a heat insulating material. |
|
| | |
| 28 | Plural electrode temperature modifying: |
| | This subclass is indented under subclass 17. Subject matter where the lamp or discharge device is provided
with a plurality of electrodes and means are provided for modifying
the temperature of a plurality of the electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 19, | where the envelope of the lamp or discharge device
is made in whole or part of electrical conductive material. |
| 23, | where the structure includes means to circulate
a fluid between the walls of a double walled envelope of a lamp
or discharge device or between the envelope and the enclosing casing
or jacket of a discharge device. |
|
| | |
| 29 | For liquid electrode: |
| | This subclass is indented under subclass 11. Devices having a liquid electrode and having means for modifying
the temperature of the liquid electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 16, | where the means for modifying the temperature of
the liquid electrode is an electric heater. |
| 163+, | for liquid electrode discharge devices, per
se. |
|
| | |
| 30 | Hollow electrode or lead: |
| | This subclass is indented under subclass 11. Devices where the lamp or discharge device is provided with
a hollow electrode or a hollow electrode lead conductor, means
being provided to modify the temperature of the hollow portion of
the electrode or the electrode lead.
| | (1)
Note. In many of the devices in this subclass a
fluid is circulated into the hollow electrode or electrode lead. See
indented subclasses 31 and 32 where the hollow electrode or lead
constitutes a closed path so that fluid may be circulated through
the electrode or lead. | |
| | |
| 31 | Tubular coil electrode: |
| | This subclass is indented under subclass 30. Devices in which the electrode is in the form of a fluid
conduit which is in the form of a coil.
SEE OR SEARCH CLASS:
| 138, | Pipes and Tubular Conduits,
subclasses 100 through 178for pipe structure, per se. |
| 165, | Heat Exchange, appropriate subclasses for a heat exchanger, per
se. |
|
| | |
| 32 | Closed duct type (e.g., for
liquid): |
| | This subclass is indented under subclass 30. Devices in which the hollow electrode or lead is provided
with a closed conduit designed for the passage of a temperature
modifying fluid therethrough.
| | (1)
Note. In many of the devices in this subclass the
electrode or lead is provided with two coaxial tubes one within
the other and the fluid flows in one direction through the inner
tube and in the opposite direction between the walls of the inner
and outer tubes, but this subclass is not limited to such
devices. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 31, | where the electrode is in the form of a conduit
which is in the form of a coil. |
| 35+, | and the subclasses specified in the notes thereto
for devices under subclass 11 in which the temperature modifying
means includes means for applying a temperature modifying fluid (e.g., a
cooling fluid) to some part of the device, which
part may be an electrode or lead. |
|
| | |
| 33 | Envelope with internal temperature modifying baffle: |
| | This subclass is indented under subclass 11. Devices having an envelope and having a temperature modifying
baffle entending across or into the interior of the envelope.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 20, | where the envelope is made in whole or part of conductive
material and has a double-wall or is enclosed within a casing
or jacket. |
|
| | |
| 34 | Envelope with condensing chamber or surface: |
| | This subclass is indented under subclass 11. Devices where the device is provided with an envelope, the
envelope including a chamber having a surface which has a large
heat dissipating surface for condensing vapors generated during
the operation of the device.
| | (1)
Note. Most of the devices in this subclass are mercury
vapor discharge devices and the condensing surface is designed to
condense the mercury vapor into its liquid state. |
| | (2)
Note. Included in this subclass are all discharge
devices where the envelope is provided with any portion such as
an enlarged portion or a portion located in a place which remains
relatively cool during the operation of the device, where the
purpose of such portion is to condense vapors and to change the
vapors to either their liquid or solid state. |
| | (3)
Note. See the classification of envelopes designed
for use with lamps and discharge devices which are provided with temperature
modifying means. See the class definition for the classification
of envelopes, per se, designed for use with electric
lamps and discharge devices. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 17+, | where the device is provided with either a double-wall
or a jacket or casing for the envelope. Note especially indented
subclass 20 where the device is provided with an internal temperature
modifying baffle and subclasses 22+, where means
are provided for circulating a fluid in contact with the envelope
wall. |
| 33, | for devices within the definition of subclass 11
where the envelope of a device is provided with an internal temperature
modifying baffle. |
| 35, | for discharge devices and lamps which are provided
with envelopes with tubular passageways or conduits formed in the
envelope and passing through the lamp near the filament or other
heated portion of the device so that the conduit becomes hot and
the heated air rises to draw cold air in at the bottom of the conduit. |
|
| | |
| 35 | Using liquids or fluid flow directing means: |
| | This subclass is indented under subclass 11. Subject matter wherein the temperature of the discharge
device or lamp is modified by applying a heat exchange liquid to
the discharge device or lamp or where the structure includes means
to direct the flow of the temperature modifying fluid.
| | (1)
Note. Subclasses 35+, includes
discharge devices and lamps which do not have envelopes and which
are provided with means for contacting a portion of the device with
a heat exchange fluid or liquid. The fluid or liquid containing means
may be arranged so that the fluid or liquid may be circulated.
Also included are lamps and discharge devices with envelopes with
tubular passage ways or conduits formed in the envelope and passing
through the lamp near the filament, or other heated portion of
the device so that the conduit becomes hot and the heated air rises
to draw cold air in at the bottom of the conduit. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 12, | where the apparatus includes a recirculating system
with a heat exchanger in it so that the temperature modifying fluid
is circulated from the lamp or discharge device to the heat exchanger
then back again to the lamp or discharge device. |
| 17+, | where the lamp or discharge device is provided either
with a spaced double-walled envelope or with an envelope and
a casing or jacket around the envelope, the structure including means
to modify the temperature of the lamp or discharge device.
See especially subclasses 22+, where means are
provided to circulate a temperature modifying fluid in the space between
the double-walls of the envelope or between the envelope
and the casing or jacket. |
| 29, | where the lamp or discharge device is provided with
a liquid electrode. |
| 30+, | where the lamp or discharge device is provided with
a hollow electrode or a hollow electrode lead conductor and means
are provided to modify the temperature of the hollow portion of the
electrode or electrode lead. |
| 33, | where lamp or discharge device is provided with
an envelope and an internal temperature modifying baffle which extends
across or into the envelope. |
| 34, | where the envelope is provided with either a condensing
chamber or condensing surface. |
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 26+ for discharge devices of the consumable electrode
type (e.g., arc lamps) which
are provided with means for directing the flow of a temperature
modifying medium over a portion of the device. The flow directing
means may include a casing or jacket for a portion of the device. See
indented subclass 29 where the temperature of the device is modified by
means of a heat exchange liquid. |
|
| | |
| 36 | Jacket or casing: |
| | This subclass is indented under subclass 35. Devices in which the means for applying the temperature
modifying fluid includes a jacket or casing which surrounds at least
a part of the lamp or discharge device or which is associated with
the means for applying the temperature modifying fluid so as to
direct the temperature modifying fluid upon some part of the lamp
or discharge device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 17+, | where the lamp or discharge device is provided either
with a spaced double walled envelope or with an envelope that has
a casing or jacket which surrounds at least a portion of the envelope. |
| 324, | for miscellaneous electric lamps and discharge devices
which do not have envelopes but which are provided with casings
and jackets. |
SEE OR SEARCH CLASS:
| 165, | Heat Exchange,
subclass 74 for a removable device projecting into a chamber
containing a heat exchanger fluid. |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 26+ for discharge devices of the consumable electrode
type (e.g., arc lamps) which
are provided with a jacket or casing for directing the flow of a
temperature modifying medium over a portion of the device. |
|
| | |
| 37 | For filament or heated cathode: |
| | This subclass is indented under subclass 11. Devices which are provided with a filament, a directly
heated cathode or an indirectly heated cathode and which include
means to modify the temperature of the filament or cathode.
| | (1)
Note. The structure must include more than a filament, a
directly heated cathode or an indirectly heated cathode.
For example, included in this and the indented subclass
are devices in which a heat conserving shield is placed about the
cathode to conserve the heat of the cathode and devices which have
means to conduct heat from a portion of the cathode so as to reduce
the temperature of the cathode portion. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 39+, | for other devices under subclass 11 which are provided
with a cathode which may be a thermionic cathode other than a directly
or indirectly heated cathode and which includes means to modify
the temperature of the cathode. |
| 337+, | for the structures of indirectly heated cathodes, per
se. |
| 341+, | for the structure of filaments and directly heated
cathodes. |
| 346, | for the structure of thermionic cathodes. |
|
| | |
| 39 | For electrode within an envelope: |
| | This subclass is indented under subclass 11. Devices which are provided with an envelope and an electrode
within the envelope, heat transfer means being provided
to modify the temperature of the electrode.
| | (1)
Note. The heat transfer means may be mounted upon
or form a part of the electrode. For example, an
electrode may be formed with a heat indicating surface. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 16, | and 29, where the electrode is a liquid electrode.
See subclass 16 where an electric heater is provided for the liquid
electrode. |
| 23, | and 28, where the device is either provided
with a double spaced wall envelope or is provided with an envelope and
a jacket or casing which surrounds at least a portion of the envelope
and means are provided to modify the temperature of a plurality of
electrodes within the envelope. See subclass 23, where
the structure includes means to circulate a heat transfer fluid
between the envelope walls or between the envelope and the casing
or jacket. |
| 28, | see the reference to subclass 23 above. |
| 29, | see the reference to subclass 16 above. |
| 30+, | where the electrode or the electrode lead is hollow
and means are provided to modify the temperature of the hollow portion
of the electrode or lead. |
| 37+, | where the electrode which has its temperature modified
is either a filament or a thermionic cathode. |
| 42, | for devices under subclass 11 which are provided
with an envelope and an electrode lead-in conductor or
an electrode support, the electrode lead-in or the
electrode lead-in support having heat transfer means mounted
thereon or including means to modify the flow of heat along the
electrode lead-in or support. Subclass 42 also
provides for devices under subclass 11, which are provided
with an envelope and which have the heat transfer means mounted
upon a lead-in wire exterior to the envelope of the device. |
| 43, | for devices under subclass 11 which are provided
with an envelope and which have temperature modifying means to protect
the lead-in-seal or the stem of the envelope from
excessive temperatures. |
| 44, | for discharge devices under subclass 11 which have
the envelope formed of conductive material, the conductive material
being designed for use as an electrode, heat transfer means
being arranged to modify the temperature of the conductive envelope
wall. |
SEE OR SEARCH CLASS:
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclasses 127+ for X-ray tubes provided with movable
targets, usually rotatable, so that the temperature
of the target may be maintained cool by moving the target and changing
the area exposed to the electron beam during the operation of the device. |
|
| | |
| 40 | Radiating type surface: |
| | This subclass is indented under subclass 39. Devices in which the temperature modifier comprises a radiating
surface adapted to transmit or receive radiant heat.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 45, | for other devices under subclass 11 in which the
temperature modifying means is a radiating surface adapted to transmit
or receive radiant heat. |
SEE OR SEARCH CLASS:
| 165, | Heat Exchange,
subclass 133 for a heat exchanger with a coated, roughened
or polished surface, and subclasses 177+ for a
tubular structure with heat transfer means. |
|
| | |
| 41 | Material, roughened surface: |
| | This subclass is indented under subclass 40. Devices in which the radiating surface is either composed
of a material or is coated with a material which is designed to
readily radiate heat or in which the radiating surface is roughened
to facilitate the radiation. |
| | |
| 42 | Mounted on lead-in or electrode support: |
| | This subclass is indented under subclass 11. Devices which are provided with an envelope and electrode
within the envelope and a lead-in conductor or electrode
support for the electrode, the device having either a heat
transfer means mounted upon the lead-in or electrode support
or the lead-in or the electrode support including means
to modify the flow of heat along the lead-in or support.
| | (1)
Note. The heat exchange means may be mounted upon
the lead-in conductor exteriorly of the envelope. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 30+, | where the electrode lead-in conductor is
hollow (e.g., is provided with
a conduit) and means are provided to modify the temperature
of the hollow portion of the lead-in. |
| 39+, | for devices under subclass 11 which have a heat
transfer means mounted upon or forming a part of an electrode within
the envelope of the device. |
| 43, | for devices under subclass 11 which are provided
with means to protect the lead-in-seal or stem
of the envelope from excessive temperatures. |
|
| | |
| 43 | For lead-in-seal or stem protection: |
| | This subclass is indented under subclass 11. Devices in which the device is provided with an envelope
and an electrode lead-in-seal or a stem and temperature
modifying means are provided for protecting the lead-in-seal
or the stem of the envelope from excessive temperatures.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 42, | where the device includes a heat transfer means
mounted upon the lead-in conductor or electrode support or
where the lead-in conductor or support is formed so as
to modify the flow of heat along the lead-in conductor
or support. |
|
| | |
| 44 | For envelope wall: |
| | This subclass is indented under subclass 11. Devices which are provided with an envelope and where the
temperature modifier is designed to modify the temperature of the
envelope wall or some portion thereof.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 16, | and 29, for devices which have a liquid
electrode in contact with the envelope wall and which are provided
with means to modify the temperature of the liquid electrode.
See subclass 16 where the temperature modifier is an electric heater. |
| 17+, | where the device is provided with a spaced double
wall envelope or is provided with a casing or jacket for the envelope, the
structure including means to modify the temperature of the envelope
wall. |
| 29, | see the reference to subclass 16 above. 34, where
the envelope is provided with a chamber or surface for condensing
vapors generated within the envelope. |
| 35, | where the envelope wall has its temperature modified
by using liquids or where the temperature modifying means includes
means for directing the flow of the temperature modifying fluid. |
| 42, | where the device is provided with a temperature
modifying means mounted on or forming a part of the lead-in
conductor or electrode support so as to prevent the transmission
of heat to the envelope from the electrodes. |
| 43, | where the envelope is provided with means for protecting
the lead-in seal or stem of the envelope from excessive
temperatures. |
|
| | |
| 45 | Radiating type surface: |
| | This subclass is indented under subclass 11. Devices in which the temperature modifier comprises a radiating
surface adapted to transmit or receive radiant heat.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 40+, | where an electrode within an envelope is provided
with a radiating surface. |
|
| | |
| 46 | Having heat conducting path: |
| | This subclass is indented under subclass 11. Devices in which the temperature modifier is a means for
conducting heat.
| | (1)
Note. Included in this subclass are devices which
have a portion made of a large size or of a special material so
that the heat will be conducted from a place which it is desired
to keep cool to a place where the heat will be dissipated. |
SEE OR SEARCH CLASS:
| 165, | Heat Exchange,
subclasses 177+ for a tubular structure with attached heat transmitter. |
|
| | |
| 47 | Heat conserving or insulating type: |
| | This subclass is indented under subclass 11. Devices which include means for preventing the flow of heat
to or from the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 25+, | and 27, for devices under subclass 11 where
the device is provided with a spaced double wall envelope, or where
the device is provided with an envelope and a casing or jacket for
the envelope, see subclasses 25+ where the space
between the double walls or between the envelope and the casing or
jacket is sealed and either evacuated or filled with a gas or vapor (e.g., for
heat insulation), and see subclass 27 where the
space between the double walls or between the envelope and casing
contains other heat insulating means. |
SEE OR SEARCH CLASS:
| 220, | Receptacles, appropriate subclasses for miscellaneous receptacles provided
with heat insulating means, see especially
subclasses 2.1+ for envelopes and casings designed for use with
lamps and discharge devices, and subclasses 400+ and
415+ for miscellaneous receptacles provided with linings. |
| 252, | Compositions,
subclass 62 for miscellaneous heat insulating compositions. |
|
| | |
| 48 | WITH HANDLE: |
| | This subclass is indented under the class definition. Devices which are provided with a handle.
| | (1)
Note. This subclass excludes electric lamps including
those of the discharge device type where the handle is separable
from the electric lamp. For the excluded electric lamps, see
Class 362, Illumination, appropriate subclasses, see especially
subclasses 190+ for portable self contained illuminating
devices which include a casing or handle for the lamp and means
to supply the lamp with electricity (e.g., flashlights), subclasses 399+, and
subclasses 382+ for miscellaneous light supports including
separable handles for electric lamps. |
| | (2)
Note. Among the devices included in this subclass
are spark gaps mounted on handles such as are used to ignite gas burners. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 49, | for devices under the class definition combined
with a support or a detachable electrical connector for the device. |
SEE OR SEARCH CLASS:
| 219, | Electric Heating, appropriate subclasses, for arc welding
electrode holders in which a handle supports a single electrode.
Where the handle supports two or more electrodes and the device
is not structurally limited to use in electric welding or heating, classification
is in Class 313. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 33 for portable self contained devices which include
a source of energy, a discharge device of the arc, spark, gas
or vapor type (other than a lamp), and the
system for connecting the source of energy to the discharge device. |
| 362, | Illumination, see (1) Note, above. |
| 607, | Surgery: Light, Thermal, and
Electrical Application,
subclass 88 for electric lamps which are limited by claimed
structure to use for therapeutic purposes which are provided with a
handle and subclass 150 for discharge devices which are designed
to transmit high frequency electric current into the human body
which are provided with a handle. The devices in this subclass
sometimes include an envelope with a confined gas or vapor, an
electrode within the envelope and a handle for the device, the human
body being used as the other electrode in the use of the device. |
|
| | |
| 49 | WITH DETACHABLE ELECTRICAL CONNECTOR OR SUPPORT: |
| | This subclass is indented under the class definition. Subject matter where the lamp or discharge device is provided
with a support or has combined therewith a detachable electrical connector.
| | (1)
Note. This subclass excludes electric lamps including
those of the discharge device type, generators of invisible
rays (e.g., X-ray tubes, ultraviolet
ray generators) in combination with a separable support
for the device. See the class definition for the excluded
subject matter. |
| | (2)
Note. See the class definition of this class (Class
313) for the location of a distinct electrical connector
and for line notes distinguishing this class and Class 439, Electrical
Connectors. |
SEE OR SEARCH CLASS:
| 174, | Electricity: Conductors and Insulators,
subclass 138 for insulating supports for elongated tubular lamps. Also, see
the reference to Class 248, subclass 50, below. |
| 248, | Supports, appropriate subclasses for miscellaneous supports.
Note especially
subclass 50 for supports designed to support elongated tubing such
as gas or vapor lamps (see the reference to Class 174, above), and subclasses
500+ for the combination of a lamp or discharge device
envelope and a support therefor (e.g., a socket) with
where no electrical features are claimed. |
| 439, | Electrical Connectors,
subclasses 296+ for an electrical coupling part with coupling movement
actuating means or retaining means in addition to the contact thereof; and
subclasses 527+ for a connector having mounting or supporting
means. Class 439 includes the combination of a specific electrical
connector with a broadly recited electric lamp. See (2) above. |
|
| | |
| 50 | Resilient or vibration damping: |
| | This subclass is indented under subclass 49. Subject matter in which a support is designed to reduce
the transmission of vibrations from and/or to the supported
lamp or discharge device and subject matter under subclass 49 in which
the support is resilient.
| | (1)
Note. The support may be a detachable electric connector (e.g., socket
structure). |
SEE OR SEARCH CLASS:
| 188, | Brakes,
subclasses 378+ for devices having significant mass, which
are attached to articles for damping the vibrations by inertia; and
subclass 381 for devices damping vibrations by friction. |
| 248, | Supports,
subclasses 560+ for resilient supports. |
| 362, | Illumination,
subclasses 306 and 390, for illuminating devices which include
a resilient light support. |
|
| | |
| 51 | Electrical connector: |
| | This subclass is indented under subclass 49. Subject matter in which the support is detachable and includes
an electrical connector for the lamp or discharge device, and
lamps and discharge device which have combined therewith a detachable
electrical connector.
| | (1)
Note. See the class definition for the classification
of lamps including discharge devices, lamps, generators
of invisible ray energy (e.g., X-ray
tubes, ultraviolet ray generators), in
combination with a detachable support which may include an electrical
connector for the device. See the class definition for the
classification of detachable electrical connectors, per
se, and the line between this class and Class 439, Electrical
Connectors. |
SEE OR SEARCH CLASS:
| 248, | Supports,
subclasses 500+ for hold-down devices of general application. |
| 439, | Electrical Connectors,
subclasses 296+ especially subclasses 357+ for the combination
of an electrical connector with the envelope of a lamp, including
a resilient finger for holding that device to a mating electrical
connector. |
|
| | |
| 52 | CONVERTIBLE: |
| | This subclass is indented under the class definition. Devices which are convertible from one type of device to
another type of device.
| | (1)
Note. Many discharge devices may be considered to
be convertible from one type of discharge device to another type of
discharge device simply by not using some of the electrodes of the
discharge device. For example the usual triode may be
used as a half-way rectifier by not connecting the grid
in any circuit. In the device in this subclass some means must
be provided which is limited to use in converting the device from
one type of device to another type of device. An example
of the subject matter in this subclass is an incandescent lamp which
has the lead wires coated with electron emissive material so that
when the filament fails a glow discharge may take place between
the coated lead wires thus converting the incandescent lamp to a
discharge device type lamp. Note that where the converting
means is an electric switch or other circuit element such as an
impedance, the device is excluded from this class and will
be found in Class 315, subclasses 32+.
Also excluded from this subclass are incandescent lamps having plural
filaments, such as a high resistance filament and a low
resistance filament, which may be converted from one type
of incandescent lamp to another merely by connecting one filament
or the other in the circuit. |
| | (2)
Note. See the class definition for the classification
of lightning arresters of the arc or spark type which are designed
to have the electrodes brought into contact with each other upon
prolonged use of the device thereby establishing a conductive path
through the device. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 1+, | for plural unit devices under the class definition, that
is, devices which include in structural combination a plurality
of discharge devices, a plurality of lamps other than mere
multiple filament lamps, or a lamp and discharge device. |
| 236, | for devices under the class definition which are
provided with a spare or extra electrode which is not used until one
of the electrodes fails to operate properly when the spare or extra
electrode is used to replace the defective electrode. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems, see (1) Note above. |
|
| | |
| 53 | FLAME OR EXPLOSION TYPE: |
| | This subclass is indented under the class definition. Discharge devices in which a flame provides an ionized path
for the discharge.
SEE OR SEARCH CLASS:
| 96, | Gas Separation: Apparatus,
subclasses 15+ for apparatus for smoke precipitation of the electrostatic
type having electrodes between which the combustion products (e.g., smoke) are passed
and which attract particles in the combustion products by means
of electrostatic fields. |
| 123, | Internal-Combustion Engines,
subclass 594 for high tension ignition systems for internal
combustion engines, which include a jump type spark gap
igniter operating within a cylinder. |
| 361, | Electricity: Electrical Systems and Devices,
subclasses 247+ for electrical devices for igniting combustible material
which include spark or arc electrodes and means to bring the electrodes
into contact with the combustible material. |
| 431, | Combustion,
subclass 25 for a burner control circuit utilizing the current rectifying
effect of a flame and subclasses 78+ for a burner controlled
by an electric control circuit that senses flame. |
|
| | |
| 54 | WITH RADIOACTIVE MATERIAL: |
| | This subclass is indented under the class definition. Devices which are provided with a radioactive material, the
radioactive properties of the material being utilized in the operation
of the device.
| | (1)
Note. In the patents in this subclass the radioactive
property of the material must have some significance in the operation of
the device. The mere use of a radioactive substance such
as thorium on or in a cathode to render it electron emissive, the
use of uranium stained glass, or other such uses of radioactive
materials where the radioactive properties of the material are not
involved in the operation of the device is not considered sufficient
to cause classification of the device in this subclass. |
SEE OR SEARCH CLASS:
| 250, | Radiant Energy,
subclasses 381 and 382 for an invisible radiant energy responsive
gas discharge device having a radioactive gas, a gas borne radioactive
material or a radioactive source within the device to ionize the gas
of the device. |
| 252, | Compositions,
subclasses 625+ for radioactive compositions, per se. |
|
| | |
| 62 | CYCLOTRONS: |
| | This subclass is indented under the class definition. Discharge devices provided with magnetic means for confining
the path of the particles of the space discharge into a circular
path and having means for accelerating the particles tangentially
of the circular path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 153+, | for other devices under the class definition which
have a magnetic device associated therewith. |
| 359.1+, | for discharge devices including means to accelerate
positive or negative ions. |
| 421+, | for cathode-ray tubes with means to deflect
a beam of electrons. |
| 441+, | for cathode-ray tubes including means to
accelerate a focus or beam of electrons. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices:
Systems,
subclass 502 for a cyclotron. |
| 376, | Induced Nuclear Reactions: Processes, Systems, and
Elements, appropriate subclasses for nuclear reactions and
nuclear reactors. |
|
| | |
| 93 | GEIGER-MUELLER TYPE: |
| | This subclass is indented under the class definition. Devices which are provided with means responsive to invisible
radiant energy other than ultraviolet rays or heat rays or radio waves, for
altering the operation of the device.
| | (1)
Note. Such rays may be protons, alpha particles, X-rays, gamma
rays, cosmic rays or similar ray energy. |
| | (2)
Note. Many discharge devices having an envelope
and a confined gas or vapor atmosphere may be used as Geiger-Mueller
counter tubes. This subclass is limited to devices which
include some structure which is especially provided because the
device is responsive to the invisible ray energy and to discharge devices
which are claimed as being Geiger-Mueller counter tubes.
For other types of gas or vapor discharge devices see subclasses
182+, and the subclasses specified in the notes
thereto. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 54, | for devices within the class definition which include
a radioactive material. |
| 103+, | for devices within the class definition having an
electrode which is secondarily emissive, i.e., which
emits secondary electrons when bombarded by primary electrons from
another source. |
| 523+, | for photosensitive devices within the class definition. Especially
see indented subclass 539 for those which are designed to be responsive
to radiant energy, (ultraviolet or heat rays or visible
light) of particular wave lengths. |
| 539, | see reference to subclasses 523+, above. |
| 567, | see (2) note, above. |
|
| | |
| 103 | Secondary emitter type (e.g., electron
multiplier): |
| | This subclass is indented under the class definition. Discharge devices having a secondary emissive electrode.
| | (1)
Note. The devices in this subclass are also known
as "electron multipliers". |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 106, | for devices under the class definition provided
with means to prevent secondary emission from some part of the device. |
| 346, | and the subclasses specified in the notes thereto, for
secondary emissive electrodes, per se. |
| 377, | 387 and 399, for cathode-ray tubes with
a secondary emissive electrode. |
| 532+, | where the discharge device includes a photosensitive
electrode in addition to the secondary emissive electrode. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 39.63 for discharge devices having an electrode formed
so as to provide a structure having distributed inductance and capacitance
and operable in a magnetic field (e.g., magnetrons), the
discharge device being provided with a secondary emissive electrode. |
| 327, | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and
Systems,
subclasses 572+ for miscellaneous secondary emissive circuits. |
| 329, | Demodulators, appropriate subclasses for demodulators or detectors generally
with secondary emission. |
| 330, | Amplifiers,
subclass 42 for amplifiers having a secondary emitter discharge
device. |
| 331, | Oscillators,
subclass 89 for oscillator systems utilizing a magnetron type tube
having a secondary electron emissive electrode, and subclass
133 for negative resistance oscillators utilizing a tube of the
secondary electron emissive type. |
|
| | |
| 104 | Plural secondary emissive electrodes: |
| | This subclass is indented under subclass 103. Discharge devices having a plurality of secondarily emissive
electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 306+, | and the subclasses specified in the notes thereto
for other discharge devices which have a plurality of cathodes. |
|
| | |
| 106 | SECONDARY EMISSION PREVENTION: |
| | This subclass is indented under the class definition. Devices provided with means to prevent the emission of secondary
electrons from some part of the device.
| | (1)
Note. Discharge devices which have one or more control
electrodes and in which the only means provided to suppress the secondary
emissive is that one or more of the control electrodes may be used
as a secondary emissive suppressing electrode are not included in
this or the indented subclass but will be found in subclasses 293+, or
one of the subclasses specified in the notes thereto. | |
| | |
| 107 | Nonemissive material: |
| | This subclass is indented under subclass 106. Devices in which the secondary emission suppression is secured
by the use of a nonelectron emissive material.
| | (1)
Note. In the devices in this subclass the part which
is to be nonemissive may be made of a nonemissive material or coated
with a nonemissive material. |
| | (2)
Note. See the class definition for the classification
of electrodes where no structure of the electrode is involved other
than composition of the materials used to form the electrodes, coated
electrodes which involve no more structure than a base with one
or more coatings thereon, and for the processes of making or
coating electrodes. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 353, | for electrodes, per se, which
are made of two or more portions or which have a coating upon a
portion of the electrode, one portion of the electrode being
a nondischarge sustaining portion. |
| 355, | and the subclasses specified in the notes thereto
for coated electrodes. |
SEE OR SEARCH CLASS:
| 252, | Compositions,
subclasses 500+ , and the subclasses specified in the notes thereto
for materials and compositions for discharge device electrodes. |
|
| | |
| 107.5 | VARIABLE WIDTH ELECTRON STREAM (E.G., MAGIC
EYE): |
| | This subclass is indented under the class definition. Discharge devices provided with means between the cathode
and anode to change the width of the electron stream between the
anode and the cathode.
| | (1)
Note. Included in this subclass are discharge devices
of the so-called "magic eye" type which
have an annular anode coated with fluorescent material surrounding
an emissive central cathode and a control electrode for varying
the width of the discharge between the cathode and anode so that
as the potential of the control electrode varies the width of the
nonluminous portion of the anode varies. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 293+, | and the subclasses specified in the notes thereto, for
other discharge devices which have a control grid or other apertured
electrode interposed between the cathode and anode, see especially
indented subclass 299 where the discharge device is provided with
a plurality of control electrodes with the apertures in the different
electrodes in alignment (e.g., beam
power type tubes). |
| 364+, | for cathode-ray tubes provided with means
to focus the electrons into a restricted beam and with means for deflecting
the beam over the surface of a target. See especially
indented subclasses 461+ where the target is a fluorescent
or phosphorescent screen. |
| 483+, | for other discharge devices provided with fluorescent
material. |
|
| | |
| 110 | WITH OPTICAL DEVICE OR SPECIAL RAY TRANSMISSIVE ENVELOPE: |
| | This subclass is indented under the class definition. Devices which have an optical device structurally combined
with the device so that the optical device and the lamp or discharge device
constitutes a single integral device and devices under the class
definition which are provided with an envelope which is designed
to be especially transparent to particular wave lengths of radiant
energy.
| | (1)
Note. Optical devices as defined in the subclass
definition include lenses, polarizers, reflectors, light
diffusers, light valves, light obscuring means
or any other means designed to alter the transmission of light rays
in any manner. |
| | (2)
Note. See the class definition for the classification
of lamps and discharge devices which are combined with a separable
casing, jacket, shield, or envelope protective
means. See the class definition for the classification
of lamps and discharge devices which are combined with a separable
optical device. See the class definition for the classification
of envelopes, per se, for lamps and discharge
devices. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 359.1, | for discharge devices of the positive ion accelerator
type which are provided with windows through which the positive
lens may pass. |
| 420, | for cathode ray devices provided with electron permeable
windows. |
| 461+, | for cathode-ray tubes provided with fluorescent
or phosphorescent screens or targets. |
| 465, | for cathode ray devices provided with light valves. |
| 483+, | for devices having a fluorescent material as a part
thereof. |
| 539, | for photosensitive devices provided with means for
transmitting particular portions of the light spectrum to the photosensitive
element of the device. |
SEE OR SEARCH CLASS:
| 359, | Optical Systems and Elements,
subclasses 642+ for lenses. |
| 362, | Illumination,
subclasses 351+ for antiglare lens and subclasses 326+ for light
refractors (e.g., lenses) for
use with illuminating devices where the refractor is separable from
the source of light. |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclasses 121+ for X-ray tubes which are provided with
screening means to eliminate unwanted secondary X-rays. |
|
| | |
| 111 | Plural diverse optical devices: |
| | This subclass is indented under subclass 110. Devices which have structurally combined therewith a plurality
of optical devices of diverse types (e.g., a
reflector and a lens or a filter and a polarizer). |
| | |
| 112 | Polarizer or special ray transmission (e.g., filter): |
| | This subclass is indented under subclass 110. Devices in which the optical device is a polarizer, a
light filter, or which are provided with an envelope which
is designed to be especially transparent to particular wave lengths
of radiant energy.
| | (1)
Note. See the class definition for the classification
of envelopes including those made of special compositions for electric
lamps and discharge devices. |
SEE OR SEARCH CLASS:
| 252, | Compositions,
subclasses 299.01+ for liquid crystal containing compositions useful
in making optical filters and subclasses 582+ for other
compositions useful in making optical filters. |
| 359, | Optical: Systems and Elements,
subclasses 483.01 through 494.01for light polarizers and subclasses 350+ and
885+ for optical filters. |
| 427, | Coating Processes, for processes of coating, per se, wherein
the product is an optical element. |
| 428, | Stock Material or Miscellaneous Articles,
subclasses 415 , 417 and 426+ for a nonstructural
composite web or sheet embodying a layer of glass. |
| 501, | Compositions: Ceramic,
subclasses 11+ for glass compositions capable of filtering light. |
|
| | |
| 113 | Reflector: |
| | This subclass is indented under subclass 110. Devices in which the optical device is a light reflector.
SEE OR SEARCH CLASS:
| 359, | Optical Systems and Elements,
subclasses 838+ for reflectors, per se. |
| 362, | Illumination,
subclasses 341+ , and the subclasses specified in the notes thereto
for reflectors for use with light projectors where the reflector
is separable from the source of light. |
| 427, | Coating Processes, for processes of coating, per se, wherein
the product is an optical element. |
|
| | |
| 115 | Multiple filament lamps: |
| | This subclass is indented under subclass 113. Devices in which the lamp is an incandescent lamp having
a plurality of filaments or glowers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 316, | and the subclasses specified in the notes thereto
for other lamps which are provided with a plurality of filaments
or glowers. |
|
| | |
| 116 | Light diffusing: |
| | This subclass is indented under subclass 110. Devices in which the optical device is a light diffusing
means.
| | (1)
Note. Incandescent lamps with frosted globes are
included in this subclass. |
SEE OR SEARCH CLASS:
| 156, | Adhesive Bonding and Miscellaneous Chemical Manufacture,
subclasses 663+ for methods of etching glass to produce a light
diffusing surface thereon. |
| 427, | Coating Processes, for processes of coating, per se, wherein
the product is an optical element. |
|
| | |
| 117 | Light valve or obscuring means: |
| | This subclass is indented under subclass 110. Devices in which the optical device is a light valve, or
a light shield or other light obscuring means for preventing transmission
of light.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 364+, | for cathode ray devices provided with light valves. |
SEE OR SEARCH CLASS:
| 359, | Optical Systems and Elements,
subclasses 227+ and 238+ for light valves, per
se. |
|
| | |
| 118 | SPARK PLUGS: |
| | This subclass is indented under the class definition. Unitary devices known as spark plugs.
| | (1)
Note. See the glossary for the class definition
of spark plugs. In general, the spark plugs classified
herein are the jump spark type found in the gasoline engine of an
automobile. |
| | (2)
Note. The shell is the part having means usually
threaded for attachment to the cylinder. The shell may
be made of more than one piece. Some plugs do not have
a shell, the insulating core being attached directly to
the cylinder, as by having screw threads thereon.
The core is the insulating means fastened to the shell and holding
the center electrode with respect to the shell. It may
consist of several parts which may or may not be cemented to each
other. The center electrode is the electrode or wire extending from
the exterior to the interior of the spark plug and which is insulated
from the shell by the core. There may be several center
electrodes insulated from each other. The spark electrodes
are the electrodes between which the jump spark is formed.
The ignition spark gap is the gap on the interior of the spark plug
designed to ignite the combustible fuel. A spark gap is
constituted by two or more spark electrodes. The interior
of the spark plug is the portion which will be exposed to the combustible
gas. The exterior is the part usually exposed to atmosphere
and which has the connector for the ignition wire mounted thereon. Electrode
chamber is the space defined by the interior part of the core and
the shell and exposed to the combustible gas in the engine.
It may be substantially flat in some cases. |
| | (3)
Note. Spark plugs are collected here on the basis
of use, art and structure. Spark plugs having
the usual structure of a shell, an insulating core with
one or more electrodes therein are found here. Due to
the rules of classification, certain types of spark plugs
and combinations of spark plugs with accessories are classified
in the lower numbered subclasses of this class. Also, since
the presence or absence of claimed sparking electrodes determines
the classification in this class, a number of other classes
provide for bushings, connectors, shields, joints and
other subcombination features. Such other subclasses and
classes are referred to in the notes below, and in cases
where only a few patents are classified in other subclasses or classes
and which are not noted in the notes, cross-reference
patents have been placed in this and the indented subclasses. |
| | (4)
Note. Spark Intensifiers for Spark Plugs: Intensifier
spark gaps designed for use with spark plugs are not classified
in this or the indented subclasses unless the intensifier gap is
a unitary part of the complete spark plug when see subclasses 123+.
Where only the spark plug bushing (i.e., shell, core, center
wire) is claimed, no ignition spark electrodes being
claimed, the intensifier gap being located in or on the
bushing, the patent is likewise excluded and classified
as an intensifier gap. Some of the subclasses to be searched
for these intensifier gaps are: 1+, where
there are a plurality of intensifier gaps in a unitary device; 51, where
the intensifier is claimed in combination with a detachable electric
connector; 110+, where the intensifier includes
an optical element as a lens, mirror, etc.; 146+, where
the intensifier is provided with a movable or adjustable electrode
or shield (e.g., a screw threaded
electrode so that the size of the gap may be adjusted); 238+, especially 243, 267, 268
where the supporting or spacing structure for mounting the intensifier
electrodes are claimed; see subclass 267 where the electrodes
are rods or rod-like members, subclass 268 where the
electrodes are held apart by an insulating member between the electrodes, and
subclass 243 for the other type; 324, for the
intensifiers with a casing including those having a transparent
window; and 567, especially 620+, 622, 634+ where
the intensifier is mounted in a sealed envelope containing gas or
vapor. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 1+, | for unitary devices providing two or more separate
spark plug gaps or providing a spark plug gap and another discharge
device, but excluding spark plugs with intensifier gaps
for which see subclasses 123+ and spark plugs with a plurality
of series spark gaps for which see subclass 123. |
| 10, | for spark plugs combined with a temperature indicator. |
| 11.5, | for spark plugs with temperature modifying means. |
| 51, | for spark plugs claimed in combination with a detachable
electric connector (e.g., the
connector on the lead-in wire). |
| 54, | for spark plugs which include a radioactive material. |
| 110+, | for spark plug devices which include means, see
subclass 110 where the plug includes a lens, subclass 113 where
the plug is combined with a mirror, subclass 116 where
the plug includes a prism or light diffusing means. |
| 513+, | where the plug includes indicia or a scale (e.g., to
show width between the ignition electrodes). |
SEE OR SEARCH CLASS:
| 15, | Brushing, Scrubbing, and General Cleaning,
subclass 104.011 for spark plug cleaners. |
| 73, | Measuring and Testing,
subclasses 114.62 through 114.67for measuring or testing the ignition system of
an internal combustion engine and subclass 114.08 for using
an ignition measurement for determining irregular combustion (e.g., misfire) using
an ignition measurement. |
| 123, | Internal-Combustion Engines,
subclasses 143+ , especially subclasses 169 and 594+ for
this subject matter in combination with an internal combustion engine
or engine accessory. Subclass 169 relates, for
example, to the combination of a spark plug and a cylinder
head; the combination of a plug and cylinder space in which
the interior of the skirt has a special claimed relationship to
the cylinder volume the combination of a spark plug with an adaptor
of the screw coupling type (which, for example, permits
a small plug to be inserted in a large hole or which acts to extend
the shell skirt to provide a chamber for the spark), etc.
Also search Class 123 for plural separate spark plugs such as, for
example, a plurality of adjustable spark plugs having means
to adjust them. |
| 138, | Pipes and Tubular Conduits,
subclasses 37+ for fittings or adapters to be interposed between
the spark plug and the cylinder which include a flow regulator or
baffle. |
| 174, | Electricity: Conductors and Insulators, appropriate subclasses for spark plug-type electrical
bushings (i.e., a spark plug
with no sparking electrodes claimed), and electrical
shields for spark plugs;
subclasses 15.1 through 16.3for such bushings combined with means for feeding, circulating, or
distributing a fluid, such as a cooling liquid or air; subclass
31 for such bushings with a fluid (air) vent, valve, or
other fluid feeding means combined therewith (e.g., a
priming means); subclasses 152+ for
such bushings, per se, including such bushings
as are provided with thermal modifying means (e.g., heat
radiating fins or heat conductive members) and electrical
connectors; and subclass 350 for such bushings with an
electrical shield about it and for the spark plug shields, per
se. Note that Class 174 provides for subcombinations of spark
plug type bushings which are less than a complete bushing and more
than is provided for in other subcombination classes (e.g., the
combination of the insulator and center electrode which involves
more structure than a mere joint would be in Class 174 rather than
one of the classes providing for joints. |
| 285, | Pipe Joints or Couplings, appropriate subclasses for fittings or adapters
having joint means to attach one end of the fitting to the engine
and joint means at the other end to receive a spark plug. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 32+ for space discharge devices, such as spark plugs, having
integral therewith a circuit element such as a resistor, condenser
or switch. Note particularly indented subclass 46 for spark
plugs having a resistor in shunt to the sparking electrodes which
is adapted to flash-over when traversed by a high current
impulse, said flash-over serving to ignite the
combustion charge; indented subclasses 51+ for
spark plugs having a plurality of circuit elements, such
as a resistor and a condenser; subclass 56 for spark plugs having
an integral switch; subclass 57 for spark plugs having
an integral transformer, and subclass 58 for spark plugs
having a suppressor resistor. Note that spark plugs having
only an integral intensifier (i.e., series
connected gap) are classified in subclasses 123+ of
Class 313. The presence of a separable connector or merely
conductive lead (e.g., ignition cable) will
not prevent classification in Class 315, subclasses 32+ if
the device is otherwise classifiable there. Class 315 also
provides for systems for supplying electrical energy to spark gaps.
Note especially subclasses 209+ for such systems having a
periodic switch (e.g., a timer
switch) in the circuit and subclasses 211+ where
there are a plurality of spark plugs and the system includes a distributor
type switch. |
| 324, | Electricity: Measuring and Testing,
subclasses 378 through 402for spark plug testers. |
| 361, | Electricity: Electrical Systems and Devices,
subclasses 247+ for miscellaneous ignitors and ignitor systems. |
| 403, | Joints and Connections, appropriate subclasses for a joint between metal and
glass or ceramic members. |
| 439, | Electrical Connectors, appropriate subclasses for an electrical connector or
certain connector related accessories. Note that this
class includes the combination of an electrical connector with
a named spark plug. Search especially
subclasses 125+ for an electrical connector having a spark or glow
plug cover. Also, search subclasses 191+ for
the combination of an electrical connector with a fluent material
transmission line. Search subclasses 271+ for
an electrical connector with a packing or gasket to seal the joint
with a mating connector; subclasses 312+ for
a coupling part with coupling part movement- actuating
means or retaining means in addition to a contact thereof with relatively
pivotable concentric movement-actuating or retaining
ring. Search this class, subclasses 607.01-607.05
for a connector with a radiation shielding means; and
subclasses 625+ for a connector with insulation other
than a conductor sheath. |
| 445, | Electric Lamp or Space Discharge Component or
Device Manufacturing,
subclass 7 for methods of manufacturing spark plugs. |
| 501, | Compositions: Ceramic, appropriate subclasses for ceramic compositions used for
spark plug insulators. Note especially
subclasses 127+ and 134+ for clay containing compositions; and subclasses
141+ for titanate and similar material containing compositions. |
|
| | |
| 119 | Sealing-off valve for electrode chamber: |
| | This subclass is indented under subclass 118. Subject matter having means, integral with the spark
plug, permitting the removal of a part of the spark plug
from normal operating position with respect to the portion of the
shell which is attachable to the cylinder, without forming
an open passageway from the cylinder to the atmosphere.
| | (1)
Note. Included in this subclass are only unitary
spark plugs. See Class 123, Internal-Combustion
Engines, subclasses 143+, especially
169 for similar subject matter where the plug is combined with another
separable device (as a fitting with a valve) which
permits removing of the plug without stopping the engine. |
| | (2)
Note. These spark plugs are designed usually to
permit inspection or repair of the ignition spark gap electrodes
or of the interior end of the insulator without stopping the operation
of the engine. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 236, | for other discharge devices which have a stand-by
or spare electrode. |
| 237, | for other discharge devices which have electrode
replacement means or are demountable. |
SEE OR SEARCH CLASS:
| 137, | Fluid Handling, appropriate subclasses for automatically operated valves. |
| 251, | Valves and Valve Actuation, appropriate subclasses for manually operated valves. |
|
| | |
| 120 | With fluid feed or air vent: |
| | This subclass is indented under subclass 118. Subject matter provided with a passageway for a fluid extending
through the spark plug structure from the interior of the spark
plug to the exterior or to a fluid feed line so that a liquid or gas
may flow between the electrode chamber and the exterior of the spark
plug or the fluid feed line.
| | (1)
Note. The passageway may be provided with a valve
so that the fluid may pass in one direction only or have a valve
so that the fluid feed line may be closed or opened as desired. |
| | (2)
Note. The fluid feed or air vent, for example, may
supply priming fluid to the ignition spark gap space, or
may blow oil off the electrodes or allow some of the burned gas
to escape. Included in this subclass are spark plugs in
combination with integral fuel injection nozzles. |
| | (3)
Note. The fluid feed or air vent may, for example, act
as an observation port for visual inspection of the ignition spark gap
or as a port for the insertion of a cleaner. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 11.5, | for this subject matter when the fluid passageway
is for the purpose of supplying a cooling fluid (e.g., air) to
the spark plug. |
| 119, | for spark plugs having valve means arranged so that
the interior of the plug or part of the shell may be sealed off
to permit removal or inspection of at least part of the plug without
stopping the engine. |
| 143, | for spark plugs having gas directing means, such
as baffles or valves in the electrode chamber where there is no fluent
passageway between the interior and the exterior of the plug. |
| 231.01+, | for other discharge devices which have a fluent
material supply means or flow directing means. |
SEE OR SEARCH CLASS:
| 123, | Internal-Combustion Engines,
subclasses 179.9+ for priming devices for internal combustion engines. |
| 137, | Fluid Handling,
subclasses 455+ for automatically operated valves responsive to
the fluid passing through the valve, see especially subclasses
511+ for automatically operated check valves. |
| 239, | Fluid Sprinkling, Spraying, and
Diffusing, appropriate subclasses, for fuel injection nozzles
for internal combustion engines, especially
subclasses 86 through 96, and 584+. See also (2) Note, above. |
| 251, | Valves and Valve Actuation, appropriate subclasses for manually operated valves. |
|
| | |
| 121 | Reversible (e.g., part): |
| | This subclass is indented under subclass 118. Subject matter in which the whole or a portion thereof is
reversible.
| | (1)
Note. This subclass relates, for example, to
spark plugs in which the core can be reversed, so that
the center electrode tip becomes the binding post and vice versa. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 144+, | for spark plugs having specific joint structure
such as between the insulator and the shell. |
| 236, | for other discharge devices which are provided with
a stand-by or spare electrode. |
|
| | |
| 122 | Removable electrode on shell: |
| | This subclass is indented under subclass 118. Subject matter in which one of the ignition spark electrodes
is supported by the shell, and is mounted so as to be removable
therefrom.
| | (1)
Note. The removable electrode supported by the shell
may be attached to a sleeve or other supporting means fastened
between the shell and core so that the core must be removed to remove
the electrode. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 128, | for spark plugs wherein the core supports a plurality
of separate ignition electrodes with individual lead-in wires
which are insulated from each other. |
|
| | |
| 123 | Plural series gaps: |
| | This subclass is indented under subclass 118. Subject matter having a plurality of spark gaps connected
in series.
| | (1)
Note. The plural gaps may be located on the interior
portion of the plug (e.g., used to
ignite the combustible gas) or one or more of the gaps
may be located in or on some other portion of the spark plug. |
| | (2)
Note. Spark gaps in series with the igniter spark
gap, when not exposed to the cylinder charge, are
often referred to as intensifier gaps, since they prevent voltage
break-down until a voltage level, higher than
would otherwise be required, is reached. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 306+, | and the subclasses specified in the notes thereto
for miscellaneous discharge devices having a plurality of gaps in
series. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 180+ for systems for supplying electrical energy to
a plurality of different type spark gaps, subclasses 185+ for
systems for supplying electrical energy to a plurality of series
connected spark gaps, subclass 334 and the subclasses specified
in the notes thereto, for supplying electrical energy to
a discharge device having three or more series arranged electrodes. |
|
| | |
| 124 | Intensifier in center electrode lead-in: |
| | This subclass is indented under subclass 123. Subject matter in which one of the series gaps is located
in the lead-in path which includes the center electrode
connector for the ignition wire and the ignition spark electrode
conductively attached to or formed by the center electrode, the
gap being located outside of the interior portion of the spark plug (e.g., not
in the electrode chamber).
| | (1)
Note. Where all of the series gaps are exposed to
the cylinder charge so as to form ignition spark gaps, or
where the intensifier is located, not in the center electrode
but rather in a noncenter electrode return circuit or lead-in, the
art will be found in subclass 123 above. |
| | (2)
Note. The center electrode may be formed of plural
parts with the spaced electrode parts forming the intensifier gap, or
the center electrode may be spaced from the connector for the ignition
wire so as to form an intensifier gap with a portion of the connector
structure, or it may be otherwise arranged so as to be
in the center electrode lead-in path. |
| | (3)
Note. Spark Intensifiers for Spark Plugs: Intensifier
spark gaps designed for use with spark plugs are not classified
in this or the indented subclasses unless the intensifier gap is
a unitary part of the complete spark plug, when see subclasses
123+. Where only the spark plug bushing (i.e., shell, core, center
wire) is claimed, no ignition spark electrodes being
claimed, the intensifier gap being located in or on the
bushing, the patent is likewise excluded and classified
as an intensifier gap. See Search This Class, Subclass, below, for
some of the subclasses to be searched for these intensifier gaps
are: |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 1+, | where there are a plurality of intensifier gaps
in a unitary device. |
| 51, | where the intensifier is claimed in combination
with a detachable electric connector. |
| 110+, | where the intensifier includes an optical element
as a lens, mirror, etc.. |
| 146+, | where the intensifier is provided with a movable
or adjustable electrode or shield (e.g., a
screw threaded electrode so that the size of the gap may be adjusted). |
| 267, | where the electrodes are rods or rod-like
members. |
| 268, | where the electrodes are held apart by an insulating
member between the electrodes, and subclass 243 for the other
type. |
| 282+, | especially 243, 267, 268 where
the supporting or spacing structure for mounting the intensifier
electrodes are claimed. See subclass |
| 324, | for the intensifiers with a casing including those
having a transparent window. |
| 567, | especially 620+, 622, 634+ where
the intensifier is mounted in a sealed envelope containing gas or
vapor. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 58+ for similar subject matter having a circuit impedance
such as, for example, a nonlinear resistor in
the center electrode lead-in. |
|
| | |
| 125 | Movable electrode (e.g., for
cleaning, adjustable): |
| | This subclass is indented under subclass 118. Subject matter having an ignition spark electrode which
is movable into two different positions.
| | (1)
Note. For the purpose of this definition, an
electrode which is variably positioned by plastic distortion thereof (as, for example, when
points are "set" to a desired position by bending
to provide a particular gap length) is not considered to
be movable. Where the distortion is an elastic deformation
as, for example, due to vibration, the
art is in this and the indented subclass. |
| | (2)
Note. In general, this subclass includes spark
plugs provided with means whereby an electrode may be moved other
than by plastic distortion without disassembly of the spark plug. The
electrode may be moved for cleaning or for obtaining a variable
width ignition gap. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 119, | for this subject matter where the spark plug can
be removed from normal operating position without stopping the engine. |
| 120, | for spark plugs having a reversible electrode which
can assume one position or a reversed position. |
| 122, | for spark plugs having a removable electrode on
the shell. |
| 127, | for spark plugs having stationary electrodes and
a movable cleaner. |
| 143, | for spark plugs having a movable baffle or gas directing
means for the electrode chamber. |
| 146+, | for other space discharge devices having a movable
electrode. |
|
| | |
| 126 | Automatically moved (e.g., engine
vibration): |
| | This subclass is indented under subclass 125. Subject matter in which the electrode is automatically moved.
| | (1)
Note. The electrode may be moved, for example, by
engine vibration or by a thermostat. The motion may be
effected so as, for example, to adjust the spacing of
the spark gap electrodes or to clean the electrodes. |
| | (2)
Note. This subclass also includes spark plugs having
means for automatically moving electrodes and means for disabling
said first mentioned means so that the electrodes can optionally
be held immovable. |
| | (3)
Note. This subclass includes spark plugs having
both manual and automatic means to move an electrode. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 127, | for spark plugs having automatically moved cleaners. |
| 143, | for spark plugs having automatically moved baffles
or gas directing means for the electrode chamber. |
|
| | |
| 127 | Cleaner (e.g., movable
scraper): |
| | This subclass is indented under subclass 118. Subject matter having a cleaner.
| | (1)
Note. The cleaner may, for example, be a
movable scraper which scrapes the electrode tips or movable balls
which knock carbon off the insulator. |
| | (2)
Note. Many spark plugs are "self cleaning" by
virtue of their operating at a sufficiently high temperature to
burn off carbon deposits. Such spark plugs are not classified
in this subclass unless they have means for cleaning in addition
to the means which produce the high temperature operation. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 120, | for spark plugs having fluid feed or vent means, through
which means a cleaner may be inserted to clean the electrodes or
other parts. |
| 125+, | for this subject matter in which an electrode is
movable as, for example, where an electrode can
be rubbed against another electrode or where an electrode vibrates
during use to shake off deposits or where a movable scraper is an
electrode tip. |
SEE OR SEARCH CLASS:
| 15, | Brushing, Scrubbing, and General Cleaning,
subclass 104.011 for spark plug cleaners, per se. |
|
| | |
| 128 | Plural insulated electrodes with individual lead-in: |
| | This subclass is indented under subclass 118. Subject matter having plural ignition spark electrodes which
are insulated from the shell, and from each other, each
of the so insulated electrodes having its own lead-in structure.
| | (1)
Note. The spark plug may have three or more ignition
spark electrodes, one of which is mounted on the shell, at
least two of the others being insulated from the shell and having
individual lead-in conductors. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 123+, | for spark plugs having plural series connected ignition
gaps. |
| 140, | for spark plugs having a plurality of parallel connected
gaps, e.g., having a plurality
of ignition spark electrodes connected together which cooperate with
the electrode mounted on the shell to form a plurality of parallel connected
ignition gaps. |
| 306+, | and the subclasses specified in the notes thereto
for other discharge devices having three or more electrodes. |
SEE OR SEARCH CLASS:
| 439, | Electrical Connectors,
subclasses 626+ and 709+ for electrical connector structure
having a plurality of terminals which are insulated from each other
mounted upon an insulating member. |
|
| | |
| 129 | With transparent part: |
| | This subclass is indented under subclass 118. Subject matter having a transparent part.
| | (1)
Note. The transparent part may, for example, make
the spark or explosion inside the engine cylinder visible to an observer. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 110+, | for spark plugs where the transparent part is an
optical device such as, for example, a lens.
See subclass 116 where the transparent part has light diffusing
properties. |
| 120, | for spark plugs having fluid feed or air vent means, through
which the spark gap may be observed. |
| 124, | for spark plugs having an intensifier gap and the
portion of the plug having the intensifier gap is provided with
an observation window or is made transparent. |
| 324, | for miscellaneous spark gaps which are provided
with a casing having a transparent part. |
|
| | |
| 130 | Non-conducting material in or adjacent gap (e.g., restricts
spark): |
| | This subclass is indented under subclass 118. Subject matter having nonconducting material interposed
between or closely adjacent the ignition spark gap.
| | (1)
Note. The nonconducting material, for example, may
be provided with a minute aperture through which the spark must pass, or
it may be an impervious barrier between the electrodes. |
| | (2)
Note. For the purpose of this definition, the
material is closely adjacent the spark gap if it is so close that
it affects the sparking. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 143, | for spark plugs having an insulator end at the ignition
spark gap end of the plug of particular shape. |
| 325, | for miscellaneous spark gaps having an insulator
material within or closely adjacent to the spark electrodes. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 46 for similar subject matter where the material with
or closely adjacent the gap is a resistance material. |
|
| | |
| 131 | Non-shortest line spark and surface spark type: |
| | This subclass is indented under subclass 130. Subject matter in which the material is so situated that
the spark is caused to follow the surface of the insulator or to
follow a path which is not the shortest path between electrodes.
| | (1)
Note. For example, the insulating material
may form a barrier between the sparking electrodes so that the spark must
jump the barrier. | |
| | |
| 132 | Capillary groove or space: |
| | This subclass is indented under subclass 118. Subject matter having a groove or analogous surface structure
or having a narrow space which is disclosed as drawing or holding
fluid by capillary action.
| | (1)
Note. The fluid, for example, may
be condensed oil mist which is drawn away from the electrode points
by capillary action. |
| | (2)
Note. The narrow space may be formed, for
example, between two facing flat electrodes of extended
area positioned closely together. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 141+, | and the subclasses specified in the notes thereto, for
spark plug ignition electrode structure, not having capillary
grooves, in which condensed fluid is drawn away from electrode points
by gravity action due to the inclination of a surface of the electrode. |
|
| | |
| 133 | Ball electrode: |
| | This subclass is indented under subclass 118. Subject matter having an ignition electrode whose shape
is that of a ball or a substantial portion of a ball.
| | (1)
Note. This subclass relates, for example, to
spark plugs in which one electrode is a substantially hemispherical
or hemispheroidal surface formed of a thin sheet material. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 325, | and the subclasses specified in the notes thereto
for other discharge devices having ball electrodes, and subclass
326 for the electrodes, per se. |
|
| | |
| 134 | With radio shielding: |
| | This subclass is indented under subclass 118. Subject matter having electrical shielding means to shield
the spark plug.
| | (1)
Note. The shielding means ordinarily are used to
prevent the ignition current used with the spark plug from radiating or
otherwise establishing unwanted electrical effects. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 313, | for other space discharge devices having electric
shielding means. |
SEE OR SEARCH CLASS:
| 123, | Internal-Combustion Engines,
subclasses 146.5+ for shielded ignition systems for internal combustion engines. |
| 174, | Electricity: Conductors and Insulators,
subclasses 32 through 397for electrical conductors having shielding means
and subclass 350 for miscellaneous electrical shielding structure
including that designed for use with spark plugs or spark plug-type
bushings. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 85 for miscellaneous space discharge device systems
including some spark ignition systems having shielding means and consult
the search notes of subclass 85 for a list of related art. |
| 439, | Electrical Connectors,
subclasses 125+ for an electrical connector with a spark or glow
plug cover; and subclasses 607.01- 607.05
for an electrical connector having or providing an inductive or
capacitive shield. |
|
| | |
| 135 | With particular connector structure: |
| | This subclass is indented under subclass 118. Subject matter having significant connector structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 51, | for spark plugs having a detachable connector such
as, for example, a spark plug with a connector
part attached thereto in combination with the connector part attached
to the ignition wire and designed to be attached to the spark plug
connector. |
| 134, | for this subject matter wherein the spark plug includes
electrical shielding means. |
SEE OR SEARCH CLASS:
| 174, | Electricity: Conductors and Insulators,
subclass 152 for spark plug type bushings (i.e., having
no ignition sparking points claimed) in combination with
an electrical connector when more bushing structure is recited than is
necessary for mounting or supporting the connector. |
| 439, | Electrical Connectors, appropriate subclasses for an electrical connector and
for certain accessories. This class provides for an electrical
connector combined with a "named" spark plug, (i.e., no
more of the spark plug is claimed than is necessary to support or
attach the connector to the spark plug). Search
subclasses 125+ for a spark plug connector with a cover, or for
a spark plug cover, per se; sub classes 191+ for
an electrical connector combined with a fluid line conduit (e.g., air
vent or priming means); subclasses 271+ for
an electrical connector with a packing or gasket to seal the joint
between the connector and a mating connector; subclasses
312+ for an electrical connector with a coupling movement-actuating
relatively pivotable concentric ring in addition to the contacts
thereof; subclasses 607.01- 607.05
for an electrical connector with a radiation shielding means; and
appropriate other subclasses for an electrical connector generally
which may be used on a spark plug. |
|
| | |
| 136 | Plural part center electrode lead-in: |
| | This subclass is indented under subclass 118. Subject matter in which the portion of the center electrode
which is encased by the insulating core structure consists of more
than one part.
| | (1)
Note. For the purpose of classification in this
subclass, necessary terminal structure immediately adjacent
the end of the insulator shall not be considered to be one of the
aforementioned parts, nor shall a coated or covered wire (as, for example, in
the cored rod) be considered to be plural parts for classification
in this subclass. |
| | (2)
Note. The parts may be physically united as by welding
a rod of one metal to a rod of another metal. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 124, | for this subject matter where the plural parts are
separated so as to form an intensifier gap. |
|
| | |
| 137 | Plural part insulating means: |
| | This subclass is indented under subclass 118. Subject matter having the insulating core formed of a plurality
of parts.
| | (1)
Note. For the purpose of classification in this
subclass, stacked parallel laminations of mica will not
be considered to be plural members, but mica members whose
planes are not parallel (as, for example, a
rolled mica tube surrounded by flat mica washers) are considered
to be plural members. A thin cement layer which is utilized
to adhere together parts of the spark plug or to make joints gas tight
is not considered to be an insulating member even though it may, in
fact, be an insulator. |
| | (2)
Note. The different parts of the core may be cemented
together or may be held together by mechanical means. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 130+, | for spark plugs having an insulating member in or
closely adjacent to the spark gap. |
SEE OR SEARCH CLASS:
| 174, | Electricity: Conductors and Insulators,
subclasses 152+ for insulated bushings, including spark
plug type bushings (i.e., not
having claimed ignition spark electrodes). |
|
| | |
| 138 | Electrodes are pure figures of revolution about plug axis: |
| | This subclass is indented under subclass 118. Subject matter having plural ignition electrodes each of
which is a pure figure of revolution about the longitudinal axis
of the plug.
| | (1)
Note. Where an electrode is only in part a figure
of revolution, such as being a disk and in part not a figure
of revolution, such as having a supporting spur, a perforated
supporting means or a perforation, classification is not
in this subclass. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 133, | for this subject matter where one of the electrodes
is ball shaped. |
| 139, | and 140, for similar subject matter in which
one of the electrodes is not a pure figure of revolution.
See subclass 139 where one of the electrodes is a disk or ring and
the other electrode is not a pure figure of revolution, or
where one electrode is only a section of a disk or ring and subclass 140
where one of the electrodes has a multi-pointed or serrated
edge. |
|
| | |
| 139 | Ring or disk electrode (e.g., sector): |
| | This subclass is indented under subclass 118. Subject matter having an ignition electrode whose shape
is that of a ring or disk or a sector of a ring or disk.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 133, | for this subject matter having a ball shaped electrode. |
| 138, | for this subject matter having plural ignition electrodes
each of which are pure figures of revolution about the longitudinal
axis of the plug, one of the electrodes being a ring or
disk. |
|
| | |
| 140 | Plural parallel gaps (e.g., main
and standby, serrated electrode): |
| | This subclass is indented under subclass 118. Subject matter having means to define plural distinct ignition
spark gap spaces which are electrically connected in parallel.
| | (1)
Note. This subclass includes, for example, spark
plugs having a plurality of separate center electrodes which are
connected in parallel and which all cooperate with one or more other
electrodes to define parallel gaps, spark gaps having a multipointed
electrode cooperating with another electrode so that each point
of the electrode defines a sparking electrode with the other electrode, and
spark plugs having a plurality of shell electrodes which cooperate
with the same center electrode. |
| | (2)
Note. Some of the spark plugs in this subclass are
intended to make the plug efficient over a longer period of time
by having the spark shift to another electrode or place on the electrode
as the spark gap space widens due to the "pitting" or
wearing action of the spark. |
| | (3)
Note. This subclass does not include spark plugs
having two electrodes formed of smooth wires or rods which are mounted
in parallel or convergent relation. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 123+, | for spark plugs having plural ignition spark gaps
which are electrically connected in series. |
| 236, | for space discharge devices having a stand-by
or spare electrode. |
| 306+, | for other space discharge devices having three or
more distinct electrodes. |
| 309, | for other space discharge devices having a multipointed
or serrated edge electrode, and subclass 351 for the electrodes, per
se. |
|
| | |
| 141 | Particular electrode structure or spacing: |
| | This subclass is indented under subclass 118. Subject matter having significant ignition electrode structure, interelectrode
spacing, or inter-electrode spatial relationship, or
having an ignition electrode formed of particular material.
| | (1)
Note. An electrode for a spark plug defined only
by the composition of which it is made is not classified herein. Such
electrodes are classified elsewhere. See the Search Class
notes below. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 122, | for this subject matter where the shell electrode
is readily removable or demountable. |
| 123+, | for this subject matter having plural series gaps. |
| 132, | for this subject matter where an electrode has a
capillary groove. |
| 133, | for this subject matter where an electrode is ball
shaped. |
| 138, | for this subject matter where both electrodes are
pure figures of revolution about the plug axis. |
| 139, | for this subject matter where the electrode is shaped
like a ring or disk or sector of a ring or disk. |
| 140, | for this subject matter having plural distinct parallel
gaps, such as, for example, those formed
between a serrated and a smooth electrode. |
| 311, | for space discharge devices having electrodes made
of particular materials. |
| 326+, | for miscellaneous discharge device electrode structure. |
SEE OR SEARCH CLASS:
| 75, | Specialized Metallurgical Processes, Compositions
for Use Therein, Consolidated Metal Powder Compositions, and
Loose Metal Particulate Mixtures, if made of a pure metal, or an alloy
subclasses 228+ provides for sintered or consolidated metal powder stock
material. |
| 148, | Metal Treatment, provides for such electrodes defined solely by their metal
or alloy composition and which are distinguished by their internal structure
or characteristics of the metal or metal alloy (e.g., produced by
a Class 148 treatment). |
| 428, | Stock Material or Miscellaneous Articles,
subclasses 544+ provides for electrode materials which as defined are
only metal wire or other metallic stock material. |
|
| | |
| 142 | Gap on and along axis: |
| | This subclass is indented under subclass 141. Subject matter in which the spatial relation and construction
of the ignition electrodes is such that the spark gap between them
coincides with the longitudinal axis of the plug.
| | (1)
Note. Electrodes of extended area will be considered, for
the purpose of classification in this subclass, to have
the spark gap on the axis of the plug if the sparking faces of the
electrodes are symmetric about the axis and the spacing gap between
the electrodes coincides substantially with the axis of the plug.
This note is applicable where the electrodes are plane sheets of
material spaced along the longitudinal axis of the plug. | |
| | |
| 143 | Shaped electrode chamber, insulator end, shell
skirt, baffle or gas directing means: |
| | This subclass is indented under subclass 118. Subject matter having means to provide an electrode chamber
of significant shape, or having an insulator whose exposed
cylinder end has a significant shape, or having a shell
skirt of particular shape, or having a baffle or gas directing
means.
| | (1)
Note. The insulator end, for example, may
be ridged so as to provide a longer leakage current path.
The baffle, for example, may prevent oil vapor
from reaching the insulator, or it may cause gas currents
to concentrate in the vicinity of the electrode points. |
| | (2)
Note. The baffle may or may not be movable. |
| | (3)
Note. Spark plugs in combination with separable
adapters are not included herein. See Class 123, Internal-Combustion
Engines, subclass 169 for this combination. Adapters
which are no more than a pipe fitting with means to attach the plug
at one end and the fitting to the plug at the other end and which
include joint structure will be found in the appropriate subclasses
of Class 285, Pipe Joints or Couplings. Fittings
or adapters which include flow regulator or baffle structure are
classified in Class 138, Pipes and Tubular Conduits, subclasses 37+. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 127, | for spark plugs having a movable cleaner, such
as, for example, a movable scraper within the
electrode chamber. |
|
| | |
| 144 | With specific joint structure: |
| | This subclass is indented under subclass 118. Subject matter having significant joint structure.
| | (1)
Note. Where there is a significant joint between
the center electrode and core in addition to a joint between other
parts, such as the shell and core, subclass 145 must
also be searched. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 119, | for spark plugs which are provided with a joint
involving structure so that a part of the plug may be removed from
operating position without stopping the engine (e.g., the
insulator may be removed from the shell and means are provided to
seal off the opening in the shell). |
| 121, | where the spark plug is provided with joint structure
so that some part (e.g., the
insulator) may be removed and replaced in the reverse position. |
| 137, | for the subject matter when the insulating core
is formed of a plurality of parts. |
| 238+, | especially subclasses 243, 267 and 268
for other space discharge devices with supporting and spacing structures
which involve joints between the parts. |
SEE OR SEARCH CLASS:
| 123, | Internal-Combustion Engines,
subclass 169 for spark plugs in combination with an internal
combustion engine or engine accessory. Included in Class
123 are joints between the spark plug and the cylinder where significant
cylinder structure is recited. Also, included
in Class 123 is the combination of a spark plug with an adapter
designed to hold the plug at one end and designed to be attached
to the cylinder at the other end (e.g., to use
a small sized plug in a larger sized cylinder opening). |
| 174, | Electricity: Conductors and Insulators,
subclass 138 for miscellaneous insulated rod joints and subclass
152 for spark plug type electrical bushings (i.e., a
spark plug with no ignition sparking electrodes claimed) having joint
structure between the parts of the bushing. |
| 285, | Pipe Joints or Couplings, appropriate subclasses for mere pipe joints including
insulated pipe joints. |
| 403, | Joints and Connections, appropriate subclasses for rod joints of general application.
Note that insulated rod joints are in Class 174,
subclass 138 , or one of the classes specified in the notes
thereto. |
| 439, | Electrical Connectors,
subclasses 625+ for an electrical connector mounted on or attached
to an electrical insulator. |
| 501, | Compositions: Ceramic, appropriate subclasses for ceramic compositions or the
electric insulating type, such as cements for joints, and
for electric insulators defined merely by their composition, especially
subclasses 127+ and 134+ for clay containing compositions; and
subclasses 141+ for titanate and similar material containing
compositions. |
|
| | |
| 145 | Between center electrode and insulator: |
| | This subclass is indented under subclass 144. Subject matter in which the said joint is between the center
electrode and the insulating core.
| | (1)
Note. This subclass includes spark plugs having
a significant joint between the center electrode and the insulating
core or significant joint structure between the shell and core in
addition to the significant joint between the center electrode and
core. Where the only significant joint is between the insulator
and the shell, see the Search This Class, Subclass
notes below. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 120, | where the joint structure includes a fluid valve. |
| 124, | where there is an intensifier in the center electrode. |
| 128, | where there is a plurality of insulated center electrodes. |
| 136, | where the center electrode is made of a plurality
of parts. |
| 144, | where the only significant joint is between the
insulator and the shell, and see the search notes for other classes
providing for closely related subject matter. |
|
| | |
| 146 | WITH MOVABLE ELECTRODE OR SHIELD: |
| | This subclass is indented under the class definition. Devices having at least one electrode or shield which is
movable relative to another electrode or shield or to some other
part of the device.
| | (1)
Note. This subclass includes devices where the electrode
or shield is designed to be moved during the operation of the device
and also includes devices where the electrode or shield is mounted
so as to be moved for adjustment and need not be moved during the
operation of the device. For example, included
in this and the indented subclasses are spark gaps having one of
the electrodes mounted by means of screw threads so that the electrodes
can be moved closer or further apart. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 125+, | where the device is a spark plug. |
SEE OR SEARCH CLASS:
| 96, | Gas Separation: Apparatus,
subclasses 29 , 39+, and 94 for electrical precipitators
which have movable electrodes. |
| 191, | Electricity: Transmission to Vehicles, appropriate subclasses for means for transmitting
electricity from a fixed point or contact to an object which is movable. |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses for arc lamps and similar
discharge devices of the consumable electrode type having an electrode
which is movable in order to feed it towards another electrode to maintain
the proper length discharge space as the electrode is consumed by the
discharge. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 327+ for systems for supplying electrical energy to
discharge devices which are designed to be started by placing the electrodes
into contact with each other and then separating the electrodes from
each other (e.g., which have
a movable electrode), and subclass 357 for electric
systems for supplying electrical energy to other discharge devices
of the gas or vapor type which have a movable electrode. |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclass 135 , where the device is an X-ray
tube. |
|
| | |
| 147 | Plural: |
| | This subclass is indented under subclass 146. Devices having a plurality of movable electrodes or shields.
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 51+ , for discharge devices of the consumable
electrode type (e.g., arc lamps) which
have a plurality of movable electrodes. |
|
| | |
| 148 | Movable envelope wall: |
| | This subclass is indented under subclass 146. Devices which are provided with an envelope and which have
a portion of the envelope wall movable, the means for moving
the electrode or shield being connected to the movable envelope
wall.
SEE OR SEARCH CLASS:
| 74, | Machine Element or Mechanism,
subclass 17.8 for miscellaneous structures for transmitting mechanical motion
through a wall by means including an imperforate movable envelope
wall portion. |
| 403, | Joints and Connections,
subclasses 230+ for joints between a rod-like body transverse
to a plate-like body. |
|
| | |
| 149 | Rotary: |
| | This subclass is indented under subclass 146. Devices in which the movable electrode or shield is mounted
so as to rotate.
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 42+ for discharge devices of the consumable electrode
type (e.g., arc lamps), which
are provided with rotary electrodes. |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclass 135 , for this subject matter where the device
is an X-ray generator. |
|
| | |
| 150 | Movable liquid electrode: |
| | This subclass is indented under subclass 146. Devices having a movable liquid electrode.
| | (1)
Note. Since all devices having liquid electrodes
may have the electrode moved by tilting the device so as to cause
the electrode to flow, this subclass includes only those
devices which are provided with a liquid electrode which may be
moved by means other than the mere tilting of the device.
Some of the devices in this subclass have means for changing the
level of a liquid electrode and some are provided with means for producing
a jet or fountain of liquid from the region of the liquid electrode
for starting a discharge, but the subclass is not limited
to such types. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 163+, | for other discharge devices under the class definition
which are provided with liquid electrodes. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 327+ for systems for supplying electrical energy to
discharge devices which have a liquid electrode and which are provided
with means for moving the liquid electrode into contact with another
electrode to start the device into operation, see subclasses
328+ where the device is designed to be started by tilting
the discharge device so as to bring the liquid electrode into contact
with another electrode. |
| 362, | Illumination,
subclasses 263+ for liquid electrode type lamps (e.g., mercury
vapor lamps) in combination with a separable support for
the lamp. |
|
| | |
| 151 | Thermal actuator: |
| | This subclass is indented under subclass 146. Devices having thermally operable means for moving the electrode
or shield.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 146+, | for movable electrode discharge devices in which
an electrode is moved by the blast of gas or fluid which results
from vaporization or thermal expansion of the gas or fluid due to
the presence of a space discharge. Such thermal vaporization
or expansion is not deemed to be "thermally actuated" for
subclass 151. |
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 89+ for discharge devices of the consumable electrode
type (e.g., arc lamps) which
are provided with a thermostatic means for moving the electrodes. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 39.59 for discharge devices having an electrode formed
so as to provide a structure having distributed inductance and capacitance
and operable in a magnetic field (e.g., magnetrons), the device
having thermally actuated means for varying the tuning of the reactive
structure, subclasses 331+, for systems
for supplying electrical energy to discharge devices of the gas or
vapor type including those which are provided with a liquid electrode where
the discharge device is provided with an auxiliary starting electrode
which is moved into contact with and then separated from one of the
principal electrodes by thermostatic means to start the discharge device. |
|
| | |
| 152 | Magnetic actuator: |
| | This subclass is indented under subclass 146. Devices having a magnetic means for moving the electrode
or shield.
| | (1)
Note. The magnetic means may be an electromagnet
connected in circuit with an electrode. A mere conductive
connection is not sufficient circuit to exclude the organization
from Class 313. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 153+, | and the subclasses specified in the notes thereto
for other devices under the class definition which are provided
with a magnetic device. |
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes, for consumable electrode type arc lamps and other consumable
electrode type discharge devices having magnetic means for feeding
one of the electrodes towards the other electrode as it or they
are consumed in the discharge or for separating the electrodes from each
other to start the space discharge. See especially
subclasses 66+ , 69+, 78, 105+, and
113+; not that subclasses 69+, provides
for rotary electric motors while the other subclasses mentioned
provide for electromagnets. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 39.59 for discharge devices having an electrode formed
so as to provide a structure having distributed inductance and capacitance
and operable in a magnetic field (e.g., magnetrons), the device
being provided with magnetically actuated means for varying the impedance
of the distributed impedance structure, subclasses 331+ for systems
for supplying electrical energy to discharge devices of the gas or
vapor type including those which are provided with a liquid electrode where
the discharge device is provided with an auxiliary starting electrode
which is moved into contact with and then separated from one of the
principal electrodes by magnetic means to start the discharge device. |
| 335, | Electricity: Magnetically Operated Switches, Magnets, and
Electromagnets,
subclasses 220+ for electromagnets with armatures. |
|
| | |
| 153 | WITH MAGNETIC DEVICE: |
| | This subclass is indented under the class definition. Subject matter where the lamp or discharge device has a
magnetic device associated therewith.
| | (1)
Note. Many of the devices in this and the indented
subclasses are discharge devices in which the magnetic field is designed
to influence the space discharge but these subclasses are not limited
to such devices. |
| | (2)
Note. This and the indented subclass includes devices
in which an electrode generates the magnetic field, such
as having an electrode made in coil form to generate the magnetic
field. |
| | (3)
Note. Where the lamp or discharge device is provided
with an envelope, the magnetic field generating means may
be within or without the envelope. |
| | (4)
Note. See the class definition for the classification
of deflection and focusing magnets. |
| | (5)
Note. The magnetic means may be an electromagnet
connected in circuit with an electrode. A mere conductive
connection is not sufficient circuit to exclude the organization
from Class 313. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 62, | for cyclotrons which include magnetic means. |
| 152, | for devices under the class definition which are
provided with a movable electrode and with magnetic means for moving
the electrode. |
| 421, | 426, 427, 433, and 440, for
cathode-ray tubes provided with magnetic means for deflecting
a beam of electrons. |
| 442, | for cathode-ray tubes provided with means
to focus a beam of electrons. |
SEE OR SEARCH CLASS:
| 218, | High-Voltage Switches With Arc Preventing
or Extinguishing Devices,
subclass 22 for electric switches provided with magnetic means
for suppressing arcs when the circuit is opened. |
| 250, | Radiant Energy,
subclasses 281+ for methods and apparatus for ionic separation
or analysis (e.g., mass spectrometry) particularly
subclass 296 for plural diverse field type ion path selecting means
and subclasses 298+ which include magnetic means for detecting
the movement of ionic particles, subclass 309 for positive
ion microscopes and subclasses 396+ for electron or ion
beam deflection or focussing means which may include a magnetic
deflection or focussing member. |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclass 20 for consumable electrode type discharge devices (e.g., arc lamps) provided
with magnetic means for influencing the space discharge. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 40 and 41+ for discharge devices of the magnetron
type, that is, discharge devices which are provided
with magnetic means for influencing the space discharge and which
have the electrodes formed as inductive impedances (e.g., resonators) or
which have the electrodes connected by inductive impedances; subclasses
236, 267, 338, and 344+ for
electrical systems for supplying electrical energy to electric lamps
or discharge devices of the gas or vapor type, where the
lamp or discharge device is provided with an electromagnet for influencing
its operation. |
| 327, | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and
Systems,
subclasses 510+ for miscellaneous circuits which are magnetically effected. |
| 331, | Oscillators,
subclasses 5 and 86+ for electrical oscillators utilizing
a magnetically controlled space discharge device (e.g., magnetron). |
| 335, | Electricity: Magnetically Operated Switches, Magnets, and
Electromagnets,
subclasses 210+ . |
| 373, | Industrial Electric Heating Furnaces,
subclasses 64 and 107, for electric arc furnaces in
which the arc is deflected out of its normal path by a magnetic field. |
| 376, | Induced Nuclear Reactions: Processes, Systems, and
Elements,
subclasses 100+ for the use of magnetic devices in apparatus for
containing a plasma yielding, or intended to yield, thermonuclear
reactions. |
|
| | |
| 154 | For generating plural fields: |
| | This subclass is indented under subclass 153. Subject matter where the lamp or discharge device has a
plurality of magnetic devices and/or having magnetic means
for producing a plurality of distinct magnetic fields.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 421, | 426, 427, 433, and 440, for
cathode-ray tubes provided with magnetic means for deflecting
a beam of electrons. |
| 442, | for cathode-ray tubes provided with means
to focus a beam of electrons. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 343 for systems for supplying electrical energy to
discharge devices of the gas or vapor type having a plurality of electromagnetic
means for influencing the discharge. |
|
| | |
| 155 | Electrode generates field: |
| | This subclass is indented under subclass 153. Subject matter in which at least a portion of the means
for generating the magnetic field is an electrode of the lamp or
discharge device.
| | (1)
Note. Examples of the devices in this subclass are
devices in which a pole face of the magnet also acts as a discharge electrode
and devices in which an electrode is formed into a coil so that
the current therethrough will produce a magnetic field. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 342, | for the structure of noninductive filaments. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 40 for lamps and discharge devices which have an electrode
formed as an inductive impedance. Included in subclass 40
are "magnetrons" having plural anodes, the
anodes and the connection therebetween forming "cavity
resonators" (e.g., inductive
impedances). Similar magnetrons will be found
in subclass 42 of Class 315, where the plural anodes are
connected by inductive impedances. |
|
| | |
| 156 | Field transverse to discharge: |
| | This subclass is indented under subclass 153. Subject matter which includes a discharge device, the
magnetic field generating means being arranged so that the generated
magnetic field extends transversely of the discharge space between
the discharge electrodes.
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 39.71 for discharge, devices having an electrode formed
so as to provide a structure having distributed inductance and capacitance, and
operable in a magnetic field (e.g., magnetrons), the device
having significant magnetic field generating or pole structure. |
|
| | |
| 157 | Concentrically arranged electrode with axial field: |
| | This subclass is indented under subclass 156. Subject matter in which one or more elongated tubular electrodes (e.g., anode
and/or grid) surrounds another elongated electrode (e.g., cathode), the
magnetic means being arranged to generate a magnetic field which
extends along the axis of the elongated electrodes. |
| | |
| 158 | Pole pieces facing electrode ends: |
| | This subclass is indented under subclass 157. Subject matter in which the magnetic means includes magnetic
poles which extend across and face the ends of the concentrically arranged
elongated electrodes and are axially spaced from the electrodes.
| | (1)
Note. The magnetic pole piece faces are usually
planar and mutually parallel. | |
| | |
| 160 | With envelope: |
| | This subclass is indented under subclass 153. Subject matter wherein the lamp or discharge device is provided
with an envelope.
| | (1)
Note. The magnetic field generating means may be
within or without envelope. | |
| | |
| 161 | Gas or vapor type: |
| | This subclass is indented under subclass 160. Subject matter wherein the envelope contains a gas or vapor.
| | (1)
Note. This subclass includes discharge devices having
a gas or vapor at a sufficient pressure to cause ionization of the gas
or the electric discharge and devices wherein the claims state that
the device contains a gas or vapor. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 567, | and the subclass specified in the notes thereto
for other devices under the class definition which are provided with
an envelope and a gas or vapor atmosphere. |
|
| | |
| 162 | Three or more electrodes: |
| | This subclass is indented under subclass 160. Subject matter where the lamp or discharge device has three
or more electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 306+, | and the subclasses specified in the notes thereto, for
other discharge devices under the class definition which have three
or more electrodes. |
|
| | |
| 163 | LIQUID ELECTRODE DISCHARGE DEVICES: |
| | This subclass is indented under the class definition. Discharge devices having at least one liquid electrode.
| | (1)
Note. Included in this and the indented subclasses
are discharge devices which have mercury or mercury amalgam electrodes
and discharge devices having electrodes made of material which becomes
liquid only during the operation of the discharge device. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 7, | for liquid electrode discharge devices in combination
with an evacuating pump. |
| 16, | for liquid electrode discharge devices in combination
with electric heater means for heating the liquid electrode. |
| 18+, | for liquid electrode discharge devices such as mercury
vapor rectifiers which are provided with a metallic envelope and
a casing or jacket enclosing the envelope and having means for modifying
the temperature of the discharge device. |
| 22+, | for liquid electrode discharge devices provided
with a casing or jacket and means for circulating a heat transfer fluid
in contact with the discharge device. |
| 29, | for miscellaneous liquid electrode discharge devices
with means for modifying the temperature of the liquid electrode. |
| 33, | and the subclasses specified in the notes thereto
for liquid electrode discharge devices provided with an envelope
and an internal temperature modifying baffle for modifying the temperature
of the vapor within the envelope. |
| 34, | for liquid electrode discharge devices provided
with an envelope which has condensing chamber or surface for condensing
the electrode vapor into liquid form. |
| 150, | for liquid electrode discharge devices wherein the
liquid electrode is movable. |
| 328, | for liquid electrode receptacles for use with liquid
electrode discharge devices. |
| 549+, | for discharge devices under the class definition
which are provided with means, such as a body of mercury, which
is designed to be vaporized during the operation of the device to supply
the gas or vapor atmosphere in the device, see subclasses
559+ where the electrode is formed of or is coated with
a material (e.g., an alkali
metal) which vaporizes during the operation of the device
to supply the gas or vapor atmosphere in the device. |
SEE OR SEARCH CLASS:
| 200, | Electricity: Circuit Makers and Breakers,
subclasses 61.05 , 61.47, 80, 81.6, and
182+ for liquid contact electric switches in which an electric
circuit is made through a conducting liquid. |
| 218, | High-Voltage Switches With Arc Preventing
or Extinguishing Devices,
subclasses 1+ for liquid contact electric switches in which an
electric circuit is made through a conducting liquid. |
| 315, | Electric Lamp and Discharge Devices: Systems, appropriate subclasses for systems for supplying electrical
energy to liquid electrode lamps during the starting and operating
periods. See
subclasses 289+ , where the system includes means for generating a
surge of potential during the starting period. See subclasses
327+, where the electrodes are in contact with
each other during the starting. See subclasses 328+, where
the discharge device is tilted to flow the liquid electrode into
contact with the other electrode. See subclasses 330+ and
335+ where the device is provided with an auxiliary starting
electrode. |
| 335, | Electricity: Magnetically Operated Switches, Magnets, and
Electromagnets,
subclasses 47+ for electromagnetically operated switches utilizing conductive
liquid. |
|
| | |
| 165 | Plural liquid electrodes: |
| | This subclass is indented under subclass 163. Discharge devices having a plurality of liquid electrodes.
| | (1)
Note. One of the liquid electrodes may be an auxiliary
starting electrode, an auxiliary holding electrode, or
both liquid electrodes may be principal discharge electrodes. | |
| | |
| 166 | Starting band or external electrode: |
| | This subclass is indented under subclass 163. Discharge devices having an envelope and having an electrode
exteriorly of the envelope.
| | (1)
Note. This subclass includes discharge devices provided
with two electrodes within the envelope and a metal band surrounding
the envelope in the vicinity of the liquid electrode.
The external electrode may also be a conductor member exterior of
the envelope which extends from one of the electrodes into the vicinity
of the liquid electrode. Also included are envelopes having
re-entrant portions, a wire or rod electrode being within
the re-entrant portion and exterior to the space enclosed
by the envelope. The auxiliary electrodes in the devices
in this subclass are often used to electrically stress the region
near the liquid electrode to facilitate the initiation of the discharge
in the device. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 349+ and the subclasses specified in the notes thereto, for
miscellaneous systems for supplying electrical energy to discharge
devices of the liquid electrode type which are provided with a discharge
controlling means, (e.g., external
electrode). |
| 329, | Demodulators, appropriate subclasses and particularly
subclass 368 for an amplitude modulation demodulator utilizing
an electron discharge device which may include an exterior liquid
electrode. |
|
| | |
| 167 | Apertured electrode (e.g., grid) interposed in
discharge space: |
| | This subclass is indented under subclass 163. Discharge devices having a liquid electrode and another
principle discharge electrode (e.g., anode) and
having a grid electrode or other apertured electrode located in
the discharge space between the liquid electrode and the other principle
electrode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 326, | for the miscellaneous electrodes which are provided
with only a single aperture. |
| 348+, | for the structure of grid electrodes and other foraminous
electrodes. |
| 356, | for the structure of tubular and other hollow sleeve-like
electrodes. |
| 597+, | for gas or vapor discharge devices which are provided
with a grid or apertured electrode interposed in the discharge space, the
grid or apertured electrode and the anode being within a hollow
shield. The structures in subclasses 597+ are
closely analogous to those used with liquid electrode discharge
devices. Also 597+, for other discharge
devices having an envelope and a confined atmosphere or gas or vapor
which have a grid or other apertured electrode interposed in the
discharge space between the cathode and the anode. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 349+ and the subclasses specified in the notes thereto
for systems for supplying electrical energy to gas or vapor discharge
devices and to liquid electrode discharge devices which have control
electrodes. |
|
| | |
| 168 | Plural anodes in separate envelope chambers: |
| | This subclass is indented under subclass 163. Discharge devices having an envelope which is formed so
as to have a portion for the liquid electrode and at least two separate
anode chamber portions with anodes therein.
| | (1)
Note. In the structures in this subclass, the
anode chambers serve to shield the anodes from each other so that
discharges from one anode to another are made more difficult. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 34, | for liquid electrode devices which are provided
with a condensing chamber and separate anode chambers for the anodes. |
| 169, | for the liquid electrode discharge devices which
have a plurality of anodes with shielding means to prevent discharges
between the anodes. |
| 634+, | for gas or vapor type discharge devices which are
distinguished by the envelope structure. |
SEE OR SEARCH CLASS:
| 220, | Receptacles,
subclasses 2.1+ , for the structure of envelopes, per
se, for discharge devices. |
|
| | |
| 169 | Plural anodes with anode arc shield: |
| | This subclass is indented under subclass 163. Discharge devices which has a plurality of anodes and which
have a shield interposed between two of the anodes to prevent discharges
from one anode to the other.
| | (1)
Note. In some of the devices in this subclass, each
of the anodes is surrounded by a tubular sleeve which is the anode shield. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 239, | for miscellaneous supporting structures for shields. |
| 326+, | for miscellaneous shield structures, note
subclass 356 for the structure of tubular or hollow sleeve-like
shields. |
| 590, | for other gas or vapor type discharge devices which
have a shield interposed between two of the anodes to prevent a
discharge therebetween. |
| 597+, | for gas or vapor type discharge devices which are
provided with a hollow shield which encloses an anode and a grid-like
electrode, the shield serving to prevent undesired discharges
to the anode. |
| 614, | for gas or vapor type discharge devices which are
provided with an anode shield to prevent undesired discharges to
the anode. |
|
| | |
| 170 | Auxiliary starting or holding electrode: |
| | This subclass is indented under subclass 163. Discharge devices having an auxiliary starting or holding
electrode in addition to the principal discharge electrodes.
| | (1)
Note. See the glossary in the class definition for
the definition of "auxiliary starting electrode" and "holding
electrode". |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 146+, | where the auxiliary electrode is movably mounted
so that it may be brought into contact with the liquid electrode, see
indented subclass 150, where the auxiliary electrode is
a movable liquid electrode. |
| 596, | and 601+, for other gas or vapor
type discharge devices within the class definition which have an
auxiliary starting electrode. |
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclass 34 , for discharge devices of the consumable
electrode type (e.g., arc lamps) which
are provided with an auxiliary starting electrode. |
| 315, | Electric Lamp and Discharge Devices: Systems, appropriate subclasses, for systems for supplying electrical
energy to liquid electrode discharge devices during the starting and
operating periods; see
subclasses 289+ , where the systems include means for generating
a surge of potential during the starting period, subclasses
330+, where the auxiliary electrode and one of
the principal electrodes are brought into contact with each other
during the starting operation, and subclasses 335+, for the
miscellaneous systems where the discharge device is provided with
an auxiliary starting or holding electrode. |
|
| | |
| 171 | Immersed in liquid electrode: |
| | This subclass is indented under subclass 170. Discharge devices in which the auxiliary electrode is in
contact with or is wholly or partially immersed in the liquid electrode.
| | (1)
Note. This subclass includes discharge devices where
the auxiliary electrode is encased in an insulating covering, the insulated
electrode being wholly or partially immersed in the liquid electrode. Also
included are discharge devices which have a starting electrode of
the "ignition" type (e.g., an
electrode of high resistance material) which is in contact with
the liquid electrode. | |
| | |
| 172 | Liquid in contact with plural electrodes: |
| | This subclass is indented under subclass 163. Discharge devices in which the liquid electrode makes contact
with a plurality of other electrodes.
| | (1)
Note. This subclass includes discharge devices having
two electrodes which are wholly or partially immersed in a conducting
liquid (e.g., mercury), there being
no electrical contact to the liquid excepting that made by the electrodes which
are immersed in it. The devices in use are intended to
volatilize the liquid thereby interrupting the circuit between the
two electrodes to establish a discharge, the liquid forming
the gas or vapor in which the discharge is to be maintained. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 232, | for discharge devices in which the electrodes are
immersed in a nonconducting liquid, the discharge creating a
path for itself through the liquid. |
|
| | |
| 173 | Cathode spot anchoring: |
| | This subclass is indented under subclass 163. Discharge devices provided with means to prevent the discharge
from wandering over the surface of the liquid electrode.
| | (1)
Note. Examples of the devices found in this subclass
are liquid electrode discharge devices having a pointed rod extending
from the liquid electrode and discharge devices having restricting means
such as an apertured baffle so that the discharge must pass through
the aperture to reach the liquid electrode. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 328, | for liquid electrode receptacles for use with liquid
electrode discharge devices. |
|
| | |
| 230 | DISCHARGE DEVICE WITH POSITIVE ION EMITTER: |
| | This subclass is indented under the class definition. Discharge devices which are provided with an electrode or
other device for emitting positive ions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 163+, | for discharge devices which have a liquid electrode (e.g., mercury), which is
the source of positive ions during the operation of the device. |
| 359.1+, | for discharge devices provided with means to form
and accelerate positive or negative ions. |
| 567, | for discharge devices which are provided with an
envelope containing an atmosphere of gas or vapor, the
gas or vapor being ionized in the operation of the device and therefore
being a source of positive ions. |
|
| | |
| 231.01 | FLUENT MATERIAL SUPPLY OR FLOW DIRECTING MEANS: |
| | This subclass is indented under the class definition. Subject matter including (a) means to direct
the flow of fluent material into the discharge area of a discharge
device, (b) means to direct the flow
of fluent material into contact with some part of the device, (c) means
to direct the flow of gas vapor or smoke generated by an electrode
in the operation of the device, or (d) means
to direct the flow of gases or vapors which are caused to circulate
due to having been heated by an electrode, the space discharge, or
other part of the device.
| | (1)
Note. This subclass includes both lamps and space
discharge devices with fluent material flow directing means. The
space discharge devices in this and indented subclasses are not
restricted to discharge devices having discharge electrodes but include
discharge devices with an electrodeless discharge, for
example, an induction-type discharge device. |
| | (2)
Note. Smoke as used in this subclass includes all
particles given off by the filament or an electrode in the operation
of the device. |
| | (3)
Note. Patents disclosing incandescent lamps and
discharge devices having an envelope enclosing a gas or vapor, the device
being provided with means to direct the flow of the gas or vapor
which circulates within the envelope due to the gas or vapor becoming
heated are cross-referenced to this subclass. |
| | (4)
Note. See the class definition for a reference to
other classes which provide for the treating of fluids with ray
energy, electrons, or ions generated by space
discharge devices or lamps. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 33, | where the device is provided with an envelope and
in internal temperature modifying baffle. |
| 34, | where the device is provided with an envelope which
has a condensing chamber or surface for condensing the vapors within
the envelope. |
| 35+, | for devices which are provided with means for directing
the flow of a temperature modifying fluid to some part of the device. |
| 120, | for spark plugs provided with means to supply fluid
from the exterior of the spark plug to the electrode chamber (e.g., with
a priming cup). |
| 143, | for spark plugs having the electrode chamber shaped
so as to direct the flow of gas or vapor. |
| 359.1+, | for ion generators with means for accelerating the
ions. |
| 564, | where the device is provided with an envelope and
contains a getter or a gas or vapor generating material within the
envelope and is provided with means for causing the material deposited
from the getter or vapor to deposit in a particular place within
the device. |
| 609+, | for discharge devices which are provided with an
envelope containing a gas or vapor and which have a partition, baffle, constricting
means, or a portion of the envelope wall between the discharge
electrodes to alter the direction of the discharge or to constrict
the area of the discharge path within the device. |
| 626, | for devices which are provided with an envelope
containing a gas or vapor and which have shielding means for the
electrode lead-in or electrode support to prevent the deposited
material from being deposited in contact with the electrode lead-in
or support. |
SEE OR SEARCH CLASS:
| 96, | Gas Separation: Apparatus,
subclasses 15+ for electrostatic precipitators having analogous
structure. |
| 250, | Radiant Energy,
subclass 251 for devices for producing and propagating a unidirectional
stream of neutral molecules or atoms through a vacuum, usually
with thermal velocity; subclasses 281+ for methods
and apparatus for ionic separation or analysis; especially
subclass 288 which includes a sample supply or invisible radiation
responsive gas; subclasses 379+ for discharge
device apparatus which includes means to supply the gas into the
discharge devices; subclasses 396+ for means to
deflect, scan, spread, or focus a performed beam
of ions; and subclasses 423+ for ion generation
methods and apparatus in which a material is treated or irradiated. |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclass 20 for discharge devices of the consumable electrode
type (e.g., arc lamps) which
are provided with means for directing a fluent material into the
discharge space to deflect the discharge out of its normal path; subclass
22 for consumable electrode discharge devices which have means to feed
a fluent material (which may be solid particles) to
the discharge space; and subclasses 26+ for consumable electrode
discharge devices which are provided with a ventilator or fume director, see
especially indented subclass 28. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 111.01+ for discharge device load with fluent material
supply to the discharge space. |
| 335, | Electricity: Magnetically Operated Switches, Magnets, and
Electromagnets,
subclass 210 for ion or electron beam deflecting magnets, per
se, and the search notes thereto for combinations including
such magnet means. |
| 376, | Induced Nuclear Reactions: Processes, Systems, and
Elements,
subclasses 100+ for processes or devices for directing or injecting
electrically charged or accelerated particles into a plasma body
wherein the intent is to obtain a nuclear fusion reaction. |
|
| | |
| 231.21 | Expulsion type: |
| | This subclass is indented under subclass 231.11. Subject matter including an arcing chamber in which a gas
evolving or other arc-extinguishing material is brought
into contact with the arc to interrupt the follow current. |
| | |
| 231.31 | Plasma: |
| | This subclass is indented under subclass 231.01. Subject matter including means for producing a plasma.
| | (1)
Note. Usually plasmas have a neutral net charge, but
not necessarily so. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 231.71, | for arc discharge devices which produce visible
light. |
|
| | |
| 231.41 | Arc discharge type: |
| | This subclass is indented under subclass 231.31. Subject matter including two electrodes between which an
arc is developed and including structure to direct the produced plasma
in a direction out of the device. |
| | |
| 232 | ELECTRODES IMMERSED IN LIQUID: |
| | This subclass is indented under the class definition. Devices having an electrode which is wholly or partially
immersed in a liquid.
| | (1)
Note. This subclass includes discharge devices which
have the electrode wholly or partially immersed in a nonconducting
liquid. Where the electrodes are immersed in a conducting
liquid see the subclasses referred to in the search notes below. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 35, | and the subclasses specified in the notes thereto
for devices which using liquids or which have means for directing
the flow of a fluid towards some part of the device for the purpose
of modifying the temperature of the device. |
| 163+, | and the subclasses specified in the notes thereto, for
discharge devices which are provided with a liquid electrode.
In the devices in subclasses 163+ the liquid electrode
ordinarily has a lead-in wire immersed in the liquid and
another electrode which may also be liquid which is not immersed in
the liquid. However, see the reference to subclass
172, infra. See subclass 171 where the discharge
device is provided with an auxiliary starting electrode which is
wholly or partially immersed in the liquid electrode.
See subclass 172 where a plurality of nonliquid electrodes are immersed
in a liquid electrode which is vaporized during the operation of
the discharge device the liquid supplying the vapor atmosphere for
the device and serving to initiate the discharge between the nonliquid
electrodes. |
SEE OR SEARCH CLASS:
| 200, | Electricity: Circuit Makers and Breakers,
subclasses 61.05 , 61.47, 81.6, 141, and
182+ for liquid contact switches. |
| 218, | High-Voltage Switches With Arc Preventing
or Extinguishing Devices,
subclasses 1+ for liquid contact switches. |
| 335, | Electricity: Magnetically Operated Switches, Magnets, and
Electromagnets,
subclasses 47+ for electromagnetically actuated liquid contact switches. |
| 361, | Electricity: Electrical Systems and Devices,
subclass 435 for electrolytic interrupters. |
|
| | |
| 233 | INVOLVING PARTICULAR DEGREE OF VACUUM: |
| | This subclass is indented under the class definition. Devices which include an envelope and which are defined
by the degree of vacuum in the envelope.
| | (1)
Note. The devices in the subclass contain no appreciable
amount of gas and are intended to be operated as vacuum devices.
However, merely defining a device as a vacuum device will
not be sufficient to cause classification of the patent in this
subclass unless the degree of vacuum is specified. Devices
defined merely as vacuum devices are classified in the other appropriate
subclass in this class. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 567, | for devices with a gas or vapor in the envelope
even though the device is not intended to be operated with ionization
of the gas or vapor; if the claims state that the device
contains a gas or vapor, the patent is classified in subclass
567 even though the pressure is such that the device has the characteristics
of a vacuum device. See (1) Note, above. |
| 577, | for such gas or vapor devices where the pressure
is only a hundred microns (0.1 mm.) or
less. |
|
| | |
| 234 | ELECTRODE EXTERIOR TO ENVELOPE: |
| | This subclass is indented under the class definition. Discharge devices which include an envelope and which have
at least one electrode of the device exterior to the space enclosed
by the envelope.
| | (1)
Note. Some of the discharge devices in this subclass
have one or more electrodes within the envelope and another electrode
exterior to the envelope. For example, the discharge
device may have a cathode and an anode within the envelope, and
a control electrode exterior to the envelope. |
| | (2)
Note. This subclass does not include devices under
the class definition which have an envelope formed in whole or part
of metal or other conductive material and being designed for use
as an electrode. For such devices, see the subclasses
referred to under "SEARCH THIS CLASS, SUBCLASS" below. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 166, | where the discharge device is provided with a liquid (e.g., mercury) electrode. |
| 246+, | for discharge devices which include an envelope, a
part of the envelope being formed of metal or conductive material
which is designed for use as an electrode, the device including means
for supporting and/or spacing a plurality of electrodes
in the envelope. |
| 607, | where the envelope contains a gas or vapor (i.e., gas
or vapor type discharge devices). |
SEE OR SEARCH CLASS:
| 329, | Demodulators, appropriate subclasses and particularly
subclass 368 for an amplitude modulation demodulator utilizing
an electron discharge device which may include an exterior electrode. |
|
| | |
| 235 | IMPERFECT ELECTRICAL CONTACT BETWEEN ELECTRODES: |
| | This subclass is indented under the class definition. Devices which include a plurality of electrodes which are
maintained in imperfect electrical contact, the devices
being designed so that the passage of electrical current from one electrode
to the other will either produce light or cause the electrodes to
be heated adjacent the ends of the electrodes which are in contact with
each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 315+, | and the subclasses specified in the notes to the
definition of those subclasses for other incandescent lamps. |
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses, for consumable
electrode devices (e.g., arc lamps) which
are provided with means for feeding one electrode towards the other
as the electrode is consumed. |
|
| | |
| 236 | STAND-BY ELECTRODE TYPE (WITH SPARE ELECTRODE): |
| | This subclass is indented under the class definition. Devices which have a plurality of similar electrodes and
which are provided with means other than the mere terminals of the
electrodes so that one of the similar electrodes can be used to
the exclusion of the other, the means being capable of
selecting either of the similar electrodes for use.
| | (1)
Note. Some of the devices in this subclass are designed
so that one electrode may be used until the electrode fails to operate
properly and then another electrode may be substituted for the electrode
which failed. |
| | (2)
Note. This subclass does not include devices, which
include no more structure than a device having the electrodes connected
to separate terminals so that different electrodes may be selectively energized
by connecting their respective terminals to proper sources of electrical current
or potential without altering in any way the structure of the lamp
or discharge device. For example, excluded is a
multiple filament lamp which is provided with three or four terminals
so that either filament may be energized by connecting the current
supply conductors to the proper filament terminals. Also excluded
is the control grid type discharge device which may be operated
as a diode rectifier by either connecting the control grid to the
anode or leaving the control grid unconnected. The devices in
this subclass include some structure in the lamp or discharge device
which is provided only to make it possible to selectively use the
electrodes. For example, included in this subclass
are two filament devices having three terminals for the filaments, one
terminal being covered by insulation until one of the filaments
fails when the insulation is removed and the other filament used. Also
included are devices having two filaments with two terminals, one
filament not being connected to a terminal, the device
being provided with means for connecting the second filament to
the terminals when the first filament fails. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 52, | for devices under the class definition which are
provided with means for converting the device into a different type
of device, such as converting a three electrode discharge
device so that it operates as a two electrode device. |
| 121, | for spark plugs having reversible parts so that
a new part can be substituted for a worn part by reversing a part (e.g., as
the core and center electrode). |
| 128, | for spark plugs having a plurality of center electrodes
so that one may be used when the other is worn. |
| 140, | for spark plugs having a plurality of electrodes
or an electrode with plural joints cooperating with another electrode
so that as one electrode wears and the spark gap becomes too wide the
spark will form between another electrode or electrode point (e.g., multigap
spark plugs). |
| 237, | for devices under the class definition which are
provided with means for replacing an electrode which is defective
or which are provided with an envelope and parts that are made so that
the device can be readily disassembled to repair a defective portion of
the device. |
| 306+, | and the subclasses specified in the notes to the
definition of those subclasses for discharge devices with three
or more electrodes. |
| 316, | and the subclasses specified in the notes to the
definition of those subclasses for lamps having a plurality of filaments
or glowers. |
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 1+ for discharge devices of the consumable electrode
type (e.g., arc lamps and similar
devices provided with means for feeding the electrodes together) which
have means for substituting one electrode for another when the first
electrode is consumed or fails to operate properly. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 32+ for electric lamps and discharge devices which
have structurally combined therewith a circuit element, such
as a switch or fuse, which circuit element may be for the
purpose of permitting the selective use of the electrodes of the
device, see especially indented subclass 65 for lamps and
discharge devices which include a plurality of filaments, one
of which is maintained in nonoperated condition while another is
in operative condition and which have means for automatically substituting
the nonoperating filament for the operating filament when either the
operating filament fails or when the conditions of the supply circuit change
so that it is desirable that the nonoperating filament be substituted for
the operating filament. Subclasses 88+, for
systems for supplying electrical energy to lamps and discharge devices
which are provided with means for automatically substituting another
electrode in the lamp or discharge device for an electrode which has
failed or which is provided with means for substituting another
lamp or discharge device for a lamp or discharge device which has
failed. |
|
| | |
| 237 | WITH ELECTRODE REPLACEMENT MEANS OR DEMOUNTABLE: |
| | This subclass is indented under the class definition. Devices which are provided with an envelope and which have
means for replacing a defective electrode, or which the
envelope and parts of the device made so the device can be readily
disassembled to repair or replace a part of the device.
| | (1)
Note. Included in this subclass are devices provided
with glass or other envelopes which are made so that the envelope
can be readily opened or an opening made therein so that a new electrode
can be inserted in the device. Also included are devices
which have an electrode in the envelope not mounted on its supports
or in position for use and which include means so that the electrode
can be brought into position on the supports to replace a defective
electrode. The defective electrode is usually removed from
contact with its lead wires or supporting means and a new electrode
substituted for the defective electrode, the defective
electrode being stored within the device or entirely removed from
the device. Where the device has a plurality of electrodes
which are provided with individual lead wires or supporting means, one
electrode remaining inactive while another is active, means
being provided to change the connections to the terminals of the
electrodes so that the inactive electrode may be used if it is so desired, see
subclass 236 of this class. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 118+, | for spark plugs which are demountable see subclass
119 where the spark plug is provided with sealing off means so that
a part (e.g., the core) can
be removed and repaired without stopping the ending, subclass
121 where the repair is made by reversing the position of a part (e.g., of
the insulator), subclass 122 where the spark plug
has a removable electrode on the shell, and subclasses
144+ for spark plugs with particular joint structure permitting
disassembly of the plug. |
| 236, | where the device includes a plurality of electrodes
and which are provided with means so that one electrode can be used
to the exclusion of another until the first electrode fails and
has means for substituting the second electrode therefor.
See (1) Note above. |
| 314, | for devices under the class definition which are
especially designed to be nonrepairable. |
SEE OR SEARCH CLASS:
| 220, | Receptacles,
subclasses 2.1+ for envelopes, per se, for lamps
and discharge devices. |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 1+ for discharge devices of the consumable electrode
type (e.g., arc lamps and similar
devices provided with means for feeding the electrodes together) which
have means for replacing and electrode with another when the first
electrode is consumed or fails to operate properly. |
| 445, | Electric Lamp or Space Discharge Component or
Device Manufacturing,
subclass 2 for methods for repairing electric lamps and discharge
devices and subclass 61 for the corresponding apparatus. |
|
| | |
| 238 | WITH SUPPORT AND/OR SPACING STRUCTURE FOR ELECTRODE
AND/OR SHIELD: |
| | This subclass is indented under the class definition. Devices having means for supporting an electrode or a shielding
structure, and/or provided with means to space
an electrode, or a shield, or a support for an
electrode or shield with respect to another part of the device.
| | (1)
Note. This and the indented subclasses provide only
for patents which claim significant supporting and/or spacing
structure for the electrode or shield. Where the claim
broadly recites supporting and/or spacing means for the
electrode and shield and no structure of the supporting and/or
spacing means is included in the claim, the patent is excluded
from this and the indented subclasses and will be found in one of
the other appropriate subclasses of this class. Where
the patent for the device discloses or claims structure in addition
to the supporting and/or spacing structure for an electrode or
a shield, the patent is classified in this or one of the
indented subclasses, and is cross-referenced for
the additional structure to the other subclasses below these subclasses.
This and the indented subclasses also include cross-references
of lamps and discharge devices which disclose specific supporting
and/or spacing structure for an electrode or shield which are
classified in the preceding subclasses. |
| | (2)
Note. A spacer is a means, such as a rod, bar, or
plate, provided to maintain an electrode or shield or a
supporting member in spaced relation with respect to another part
of the device, and is usually in addition to the means
for supporting the electrode or shield with respect to the supporting
base or envelope of the device. Members interposed between two
different electrodes or electrode supports are considered spacing
members. Members interposed between an electrode and the
envelope of the device which are not intended to support the mass
of the electrode with respect to the envelope are spacing members.
Where one electrode is mounted upon a second electrode, as
for example, being wound upon or coiled about the second
electrode, the second electrode is a spacing member.
Spacers are usually mounted upon, and supported by, an
electrode or electrode support, but a spacer interposed
between two electrodes may serve to at least partially support the
third electrode with respect to a supporting base. |
| | (3)
Note. For the definition of "electrode" and "shield", see
the glossary in the class definition. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 42, | for devices under the class definition which have
a heat transfer means (e.g., cooling
fins) mounted upon an electrode support or which have an electrode
support designed to modify the flow of heat along the electrode support (e.g., to
restrict or accelerate the flow of heat). |
| 49, | for devices under the class definition which are
provided with a support for the device. |
| 118+, | for spark plugs with supporting and spacing structure. 146, for
devices under the class definition which have an electrode or shield
movably mounted upon its support. |
| 237, | for devices under the class definition which have
an electrode and a spare electrode, the supporting means
for the electrode being designed so that the first electrode may
be removed from its support when it fails to operate properly and
the second electrode substituted therefor. |
SEE OR SEARCH CLASS:
| 248, | Supports, appropriate subclasses for miscellaneous supports
for articles. |
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses for discharge devices of
the consumable electrode type (e.g., arc
lamps and similar devices which are provided with means for feeding
the electrodes together as they are consumed) which have
supporting and/or spacing structure for an electrode or
shield. |
|
| | |
| 239 | For shield: |
| | This subclass is indented under subclass 238. Devices having supporting and/or spacing structure
for a shield.
| | (1)
Note. For the definition of shield, see the
glossary in the class definition. Note that shields do
not include shield grid electrodes, see the reference to
subclass 265 below. |
| | (2)
Note. Devices which are provided with an envelope
made in whole or part of metal or conductive material and which include
supporting and/or spacing structure for an electrode or
shield other than the metal or conductive envelope portion (such
as an electrode or shield within the envelope or an electrode or
shield exterior to the envelope) are classified as follows. This
subclass includes those devices with a metal or conductive envelope
where the the envelope is disclosed or claimed as being provided
for shielding purposes and where such envelope is not designed for
use as an electrode of the device, such as the anode, and
no other shielding structure is claimed. Where other shielding
structure is claimed, the patent is classified in the appropriate
indented subclass. Where the metal or conductive envelope
is designed for use as an electrode, the patent is classified
in either subclasses 246+ where the supporting and/or
spacing structure for a plurality of electrodes is claimed or in
subclass 317 where no other supporting or spacing structure is claimed.
Where the metal or conductive envelope is not claimed not disclosed
as either a shield or as an electrode, but one or more
electrodes are supported by the conductive envelope portion, the
patent is classified in subclass 248 where the supporting and/or
spacing structure for a plurality of electrodes is claimed and in subclass
281 or 282 where the supporting and/or spacing structure
for only a single electrode is claimed. Envelopes, per
se, having at least a portion of the envelope formed of
metal or conductive material are in Class 220, subclass
2.3, or in one of the classes specified in the notes
to the definition of that subclass. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 11+, | for devices under the subclass which are provided
with means for supporting and/or spacing a heat transfer device (e.g., radiating
fins), or which are provided with means for supporting
and/or spacing a heat shielding means. See especially
subclasses 37+ where the device is provided with a heat
shield for a cathode or filament, and subclass 47 for devices
with miscellaneous heat shields. |
| 265, | for discharge devices under subclass 238 which have
means for supporting a grid electrode or other apertured electrode
between two other electrodes (e.g., which
have means for supporting a shield grid) but which do not
have any means for supporting or spacing a shield. |
| 246+, | see (2) Note, above. |
| 248, | see (2) Note, above. |
| 281, | see (2) Note, above. |
| 282, | see (2) Note, above. |
| 317, | see (2) Note, above. |
SEE OR SEARCH CLASS:
| 220, | Receptacles,
subclass 2.3 , see (2) Note, above. |
|
| | |
| 240 | Shield supported by electrode, electrode support, or
spacer: |
| | This subclass is indented under subclass 239. Devices having the shield supported by an electrode, an
electrode support, or an electrode spacing member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 11+, | for devices under the subclass definition which
have a heat transfer means or a heat shielding means mounted upon
an electrode, electrode support or electrode spacing member.
See subclasses 37+ for devices with filaments or cathodes
which are provided with heat shields, subclasses 39+ where
the heat transfer means or heat shield is for an electrode within
the envelope, usually being supported on or forming part
of the electrode, and subclass 42 where the heat is mounted upon
an electrode support. |
|
| | |
| 241 | Extending across ends of plural discharge device electrodes: |
| | This subclass is indented under subclass 240. Discharge devices having a plurality of electrodes mounted
in side by side, concentric or co-axial relation, one
end of the electrodes being positioned in substantially co-planar relation, and
the shield being supported so that it extends across the ends of
the electrodes. |
| | |
| 242 | Shield supported by or forming part of envelope stem: |
| | This subclass is indented under subclass 239. Devices in which the device is enclosed within an envelope
which is provided with a stem, the shield being either
supported by the stem or the stem being formed so as to constitute
a shield.
| | (1)
Note. A stem is the portion of the envelope which
is usually used for supporting the support wires for the electrodes
and for sealing in the lead-in wires for the electrodes. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 43, | for devices under the class definition which are
provided with a heat transfer device or a heat shield for protecting
the lead-in-seal or the stem of the envelope. |
| 219, | for discharge devices which have an envelope containing
an atmosphere of gas or vapor, the discharge device including
a shield which is supported by the stem or which is a part of the stem
for shielding the electrode support or lead-in wire. |
| 317+, | for devices under the class definition which have
an enclosing envelope. |
|
| | |
| 243 | For plural electrodes of discharge device: |
| | This subclass is indented under subclass 238. Discharge devices having means for supporting a plurality
of electrodes of the discharge device or having means for spacing
a plurality of electrodes of the discharge device either from each other
or with respect to another part of the discharge device.
| | (1)
Note. This subclass and subclasses 267 and 268 provide
for the discharge devices which do not have an envelope and which
have supporting and/or spacing structure for a plurality
of electrodes. Indented subclass 244 provides for discharge
devices which have an envelope and supporting and/or spacing
structure for plural electrodes. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 118+, | for spark plugs having supporting and spacing structure
for a plurality of spark electrodes. |
|
| | |
| 244 | Envelope supports or forms electrode: |
| | This subclass is indented under subclass 243. Discharge devices in which the device is enclosed within
an envelope, the electrodes being supported by or forming
part of the enclosing envelope.
| | (1)
Note. The electrodes need not be supported directly
upon the envelope, but may be supported upon support rods
or other support members which are supported by the enclosing envelope. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 239+, | where the discharge device also includes supporting
and/or spacing structure for a shield. |
| 283, | and the subclasses specified in the notes thereto
for other devices under the class definition which include an envelope
and an electrode, the electrode being supported by the
envelope. |
|
| | |
| 245 | Plural discharge spaces formed by three or more electrodes: |
| | This subclass is indented under subclass 244. Discharge devices having means for supporting and/or
spacing three or more electrodes which are arranged to form a plurality
of separate discharge spaces.
| | (1)
Note. Included in this subclass are discharge devices
having a plurality of anodes and a cathode, or a plurality
of cathodes and an anode. Also included are cross-references
of discharge devices of the plural unit type (e.g., each
cathode having a separate anode) where significant supporting
and/or spacing structure is disclosed. |
| | (2)
Note. This and the indented subclasses do not provide
for the supporting and spacing structure for discharge devices which
are provided only with a cathode, a second electrode (e.g., anode) with which
the cathode forms a first discharge space, and a third
electrode in the form of a grid or foraminous electrode interposed
in the discharge space formed by the cathode and second electrode
even though the disclosure and claims of the patent state that the
third electrode is intended to receive electrons emitted by the
cathode. The supporting and/or spacing structure
for such discharge devices is in subclass 265 and the subclasses
specified in the notes to the definition of that subclass. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 1+, | for plural unit discharge devices (i.e., discharge
devices having a plurality of separate cathodes, each cathode having
a separate anode). |
| 239+, | for this subject matter where the discharge device
includes a shield between the separate discharge spaces and means
for supporting the shield. |
| 265, | see (2) note, above. |
| 306+, | and the subclasses specified in the notes thereto
for patents for discharge devices having three or more electrodes
arranged to form a plurality of separate discharge spaces where
no significant supporting and/or spacing structure for
the electrodes is claimed. |
|
| | |
| 246 | Electrode forms part of envelope: |
| | This subclass is indented under subclass 244. Discharge devices having at least one of the electrodes
forming at least part of the envelope wall.
| | (1)
Note. This and the indented subclasses include patents
for discharge devices where the device has at least a portion of the
envelope formed of metal or conductive material, the metal
or conductive portion of the envelope being defined as an electrode, and
where the claims include the supporting and/or spacing structure
for a plurality of electrodes. Where only a single electrode
which forms at least part of the envelope wall is claimed, the
patent is classified in Class 220, Receptacles, subclass
2.3 if only envelope structure is claimed or in subclasses
317+ of class 313 if structure is claimed which limits
the device to being a discharge device. See the class
definition. Where the conductive envelope forms a shield
for the enclosed electrodes, and supporting or spacing
structure for the electrodes is claimed the patent is classified
in subclasses 239+. (See (2) Note
to the definition of subclass 239). Where the
conductive envelope forms neither a shield nor an electrode, but
has a plurality of electrodes supported by the conductive wall portion, the
patent is classified in subclass 248. Envelopes, per
se, which have a conductive wall portion are in subclasses
317+ or in one of the classes specified in the notes to
the definition of that subclass. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 18+, | for discharge devices which have an electrode forming
part of the envelope wall and which have a casing or jacket surrounding
the electrode, the casing or jacket being designed to receive
a heat transfer medium (e.g., fluid cooled
metal envelope devices). |
| 239+, | see (1) Note above. |
| 248, | see (1) Note above. |
| 281, | for devices having an electrode supported in an
aperture in a conductive wall. |
| 282, | for devices having an electrode supported by supports
which form part of or are attached to the conductive wall of an
envelope. |
| 317+, | see (1) Note above. |
SEE OR SEARCH CLASS:
| 220, | Receptacles,
subclass 2.3 see (1) note above. |
|
| | |
| 247 | Hollow electrode with another electrode supported by end
structure: |
| | This subclass is indented under subclass 246. Discharge devices wherein the electrode which forms part
of the envelope wall is in the form of a hollow body having an open
end, the open end being closed either by means of another electrode
which is electrically insulated from the hollow electrode or by
a closure which supports another electrode in electrical insulating relation
with respect to the hollow electrode. |
| | |
| 248 | Conductive envelope supports plural electrodes: |
| | This subclass is indented under subclass 244. Discharge devices which have at least part of the envelope
formed of electrically conductive material, a plurality
of electrodes or supports for a plurality of electrodes being supported
by the conductive portion of the envelope wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 239+, | where the discharge device is enclosed within an
envelope which has a conductive wall portion, and the wall
portion is disclosed or claimed as being a shield. See
note 2 to the definition of subclass 239. |
| 246+, | where the conductive wall portion is claimed or
disclosed as being an electrode, and supporting and/or
spacing structure for a plurality of electrodes is claimed. |
| 281, | for devices under the class definition having the
conductive envelope portion provided with an aperture and an electrode
mounted in or around the aperture. |
| 282, | for devices under subclass 238 where the device
is provided with an envelope, the electrode support being either
formed of or attached to a conductive wall portion of the envelope. |
SEE OR SEARCH CLASS:
| 220, | Receptacles,
subclass 2.3 for envelopes, per se, with conductive
wall portions. |
|
| | |
| 249 | Elongated envelope with electrodes spaced along length: |
| | This subclass is indented under subclass 244. Discharge devices where the envelope is elongated, the
electrodes being mounted in spaced relation along the longitudinal
axis of the envelope.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 245, | for discharge devices with supporting and/or
spacing structure for three or more electrodes which are arranged
to form a plurality of separate discharge spaces, a plurality
of the electrodes being mounted in spaced relation along the length
of another electrode. |
SEE OR SEARCH CLASS:
| 331, | Oscillators,
subclass 98 for oscillators utilizing disk seal tubes (e.g., lighthouse, pencil
tube) enclosed by distributed parameter resonators. |
|
| | |
| 250 | With spacer between electrodes or electrode supports: |
| | This subclass is indented under subclass 249. Devices provided with electrode spacing means interposed
between different electrodes or different electrode supports.
| | (1)
Note. For the definition of "spacer", see (2) Note
to the definition of subclass 238. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 257+, | for other discharge devices having a plurality
of electrodes supported upon supporting rods, wires or
tubes which are supported by the envelope of the device, the
device being provided with spacing means for the electrodes or electrode
supports. |
| 285, | for devices within the class definition which are
provided with an envelope and which have an electrode supported
by means of a plurality of support wires, rods, or
tubes which are supported by the envelope, a spacer member
being provided between the different electrode support wires, rods or
tubes. |
| 288, | for devices within the class definition which are
provided with an envelope and which have an electrode supported
by means of a supporting wire, rod, or tube which
is supported by the envelope, a spacer member being provided
between the electrode or the electrode support and the envelope wall. |
|
| | |
| 252 | Support structure supported by the envelope: |
| | This subclass is indented under subclass 244. Discharge devices having electrodes which are supported
by supporting structure, such as wires, rods, or
tubes, the supporting structure being supported by the
envelope.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 11+, | for devices under the class definition which are
provided with an envelope and which have a heat transfer device (e.g., radiating
fins, etc.) or means to modify the temperature
of the device (e.g., heat conserving
means) mounted upon the electrode or electrode support.
See subclass 37 where the filament or cathode is provided with such
means, subclass 39 where the heat transfer means or temperature modifying
device is for an electrode, and subclass 42 where such
means are mounted upon an electrode support. |
| 245, | where the discharge device has the electrodes arranged
to form a plurality of separate discharge spaces (e.g., has plural
cathodes and/or anodes). |
| 246+, | where at least one of the electrodes forms at least
part of the envelope wall. |
| 248, | in which the envelope is formed of conductive material
the electrode supports being supported by the conductive envelope
wall. |
| 249+, | where the envelope is elongated and the electrodes
are mounted in spaced relation along the longitudinal axis of the
envelope. |
| 284+, | and the subclasses specified in the notes thereto
for devices within the class definition which have an envelope and
an electrode supported by a supporting member which is supported
by the envelope. |
SEE OR SEARCH CLASS:
| 174, | Electricity: Conductors and Insulators,
subclass 50.54 for miscellaneous hermetically sealed envelopes of
general application which are limited to electrical use which include means
to mount an electrical device within the envelope. |
|
| | |
| 253 | At spaced or opposed portions of envelope: |
| | This subclass is indented under subclass 252. Discharge devices which have at least one of the supporting
wires, rods, or tubes supported by a part of the
envelope wall which is opposite to or spaced at a distance from
the part of the envelope wall which supports either a different
portion of the same support wire, rod or tube or another
supporting wire, rod or tube.
| | (1)
Note. This and the indented subclasses do not include
discharge devices where all the supporting rods, wires
or tubes are sealed into a common stem or press of the envelope
even though the support wires, rods or tubes are widely
spaced from each other. |
| | (2)
Note. One of the common type structures found in
this and the indented subclasses is the so-called "multiple
ended" discharge devices, that is discharge devices
having a stem or press at each end of a substantially tubular envelope, a support
wire, rod, or tube being supported by each of
the stems or presses. |
| | (3)
Note. The support wires, rods or tubes which
are supported by the opposed parts of the envelope may support the same
electrode or different electrodes. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 247, | where the envelope wall includes a hollow conductive
part which is designed for use as an electrode, other electrodes
being supported within the envelope by means of one or more support
wires, rods or tubes which are supported by the opposed
end closures of the hollow electrode. |
| 274, | for devices under the class definition having a
filament enclosed within an envelope, the filament being
supported by supporting means which are supported by opposed or
spaced parts of the envelope. |
| 286, | for devices under the class definition having an
electrode enclosed within an envelope, the electrode being
supported by one or more support rods, wires or tubes which
are supported by opposed parts of the envelope wall. |
|
| | |
| 255 | Same electrode supported by spaced or opposed portions: |
| | This subclass is indented under subclass 253. Discharge devices which have the support wire, rod
or tube which supports an electrode supported by a plurality of
spaced or opposed parts of the envelope, or which have
an electrode supported by a plurality of support wires, rods
or tubes, different ones of the support wires, rods
or tubes being supported by different opposed or spaced parts of
the envelope.
| | (1)
Note. This subclass provides for the patents for
the discharge devices where the support structure for a plurality
of electrodes is claimed, at least one electrode being
supported by a support wire, rod or tube which is supported
by opposed or spaced parts of the envelope. Where the discharge
device has one electrode supported by support wires, rods
or tubes which are supported by only one portion of the envelope, and
another electrode supported by support wires, rods or tubes which
are supported only by an opposed or spaced part of the envelope, the
patent will be classified in subclass 253 or subclass 254. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 247, | where the envelope wall includes a hollow conductive
part which is designed for use as an electrode, another
electrode being supported by means of one or more support wires, rods
or tubes which are supported by the opposed end closures of the
hollow electrode. |
|
| | |
| 256 | Insulating or ceramic support rod or tube: |
| | This subclass is indented under subclass 252. Discharge devices where the supporting structure is a rod
or tube made of insulating or ceramic material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 257+, | for discharge devices under subclass 252 which have
a spacing structure which includes an insulating or ceramic member
between the electrodes or electrode supports, or between
one or more electrodes or electrode supports and the envelope wall.
See subclass 262 where the spacing structure includes a ceramic (e.g., glass) bead. |
| 289, | for devices under the class definition which have
and envelope and a supporting rod or tube which is formed of insulating
or ceramic material for supporting the electrode of the device. |
|
| | |
| 257 | With spacer between electrode or electrode supports: |
| | This subclass is indented under subclass 252. Discharge devices which have a spacer member interposed
between different electrodes or different electrode supports.
| | (1)
Note. For the definition of "spacer" see (2) Note
to the definition of subclass 238. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 241, | where the discharge device has a spacer member and
a shielding member extending across the ends of a plurality of electrodes. |
| 250, | where the discharge device has an elongated envelope
and the electrodes are supported along the longitudinal axis of
the envelope, a spacer member being interposed between
different electrodes or different electrode supports. |
| 255, | where the discharge device is a double ended device, that
is it has an electrode supported by support wires, rods or
tubes which are supported at both of two opposed or spaced parts
of the envelope. |
| 268, | for discharge devices which are not enclosed within
an envelope which have a spacer member interposed between the electrodes. |
| 285+, | for devices under the class definition which have
an electrode supported by means of a plurality of support wires, rods
or tubes within an envelope, a spacer member being interposed between
at least two of the support wires, rods or tubes or between
the electrode or the electrode support and the envelope.
See subclass 288 where the spacer is between the envelope and the
electrode or support. |
| 292, | for miscellaneous supporting and spacing elements, per
se. |
|
| | |
| 258 | Spacer between envelope and support or electrode: |
| | This subclass is indented under subclass 257. Discharge devices having a spacer member interposed between
the envelope of the discharge device and an electrode or an electrode support.
| | (1)
Note. The spacer member which engages the envelope
may be the same spacer member which it interposed between the different
electrodes or electrode supports, or it may be a spacer member
in addition to the inter-electrode or inter-electrode
support spacer. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 288, | for devices under the class definition which have
an envelope and an electrode within the envelope supported by a
wire, rod or tube which is supported by the envelope, a
spacer member being interposed between the envelope and the electrode
or electrode support. |
|
| | |
| 259 | Insulating coating forms spacer: |
| | This subclass is indented under subclass 257. Discharge devices in which the spacing member is formed
by an insulating coating.
| | (1)
Note. In some of the discharge devices in this subclass, an
electrode or electrode support is coated with an insulating coating, and
another electrode is wound upon or coiled about the electrode or
electrode support, the insulating coating spacing and insulating
the electrode from the supporting electrode or electrode support. |
| | (2)
Note. This subclass includes devices where the spacer
member is formed of conductive material provided with an insulating
coating so that the electrodes will be spaced and insulated from
each other. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 355, | for the structure of electrodes which have a coating
thereon. |
SEE OR SEARCH CLASS:
| 428, | Stock Material or Miscellaneous Articles, appropriate subclasses for a stock material product (in
the form of a single or plural layer web, sheet, rod, fiber
or filament), and especially
subclasses 375+ for electrodes for lamps and discharge devices
which involve no more than a base with a coating thereon. |
|
| | |
| 260 | Plate or bar extending across ends of electrodes: |
| | This subclass is indented under subclass 257. Discharge devices having the electrodes mounted in side
by side, concentric or co-axial relation, one
end of the electrodes being positioned in substantially co-planar
relation, an electrode spacer having the form of a plate
or bar mounted in contact with the electrodes or electrode supports
to maintain the electrodes in spaced relation with each other, the
plate or bar extending across the ends of the electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 241, | where the discharge device is also provided with
a shield member which extends across the ends of the electrodes. |
| 255, | where the electrode supports are supported by both
of two opposed or spaced parts of the envelope (e.g., double
ended discharge devices). |
|
| | |
| 262 | Ceramic bead for joining parts: |
| | This subclass is indented under subclass 257. Discharge devices having a plurality of the wires, rods
or tubes which support the electrodes from the envelope wall joined
to an insulating or ceramic bead, or which have a plurality
of wires or rods attached to different electrodes and joined to
an insulating or ceramic bead so that the wires or rods and the bead
serve to maintain one electrode in spaced relation to another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 256, | for discharge devices under subclass 252, which
have an insulating or ceramic supporting rod or tube which supports
the electrodes and is supported by the envelope, a plurality
of electrodes having wires or rods attached to them, the
wires or rods being joined to the insulating or ceramic support
rod so as to space one electrode from another. |
|
| | |
| 263 | With indirectly heated cathode: |
| | This subclass is indented under subclass 252. Discharge devices having supporting means for an indirectly
heated cathode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 260+, | where the discharge device has a plurality of electrodes
including an indirectly heated cathode mounted in side by side, co-axial, or
concentric relation, one end of the electrodes being positioned
in substantially coplanar relation, a plate or bar electrode spacer
extending across the ends of the electrodes. See subclass
261 where the discharge device has a plate or bar electrode spacer
at each end of the electrode assembly. |
| 270, | for other supporting structure for indirectly heated
cathodes. |
|
| | |
| 264 | With U-shaped, V-shaped, or
plural sections filament: |
| | This subclass is indented under subclass 252. Discharge devices having supporting means for a U-shaped, V-shaped
or plural section filament.
| | (1)
Note. W-shaped filaments are included as
V-shaped filaments. |
| | (2)
Note. A plural section filament is a filament which
is composed of a plurality of filament wires connected to common leading-in
wires. The plurality of filaments may be connected to
the leading-in wires so that the filament sections are electrically
connected in parallel, or a filament section may be connected
to a leading-in wire and a conductive support, another
filament section being connected to the same conductive support and
another leading-in wire so that the filament sections are
electrically connected in series. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 260+, | where the discharge device has a plurality of electrodes
including a U-shaped, V-shaped
or plural section filament mounted in side by side, co-axial
or concentric relation, one end of the electrodes being
positioned in substantially co-planar relation, a plate
or bar electrode spacer extending across the ends of the electrodes. See
subclass 261 where the device has a plate or bar electrode spacer
at each end of the electrode assembly. |
| 271+, | for other devices under the class definition which
have supporting structure for filaments. |
|
| | |
| 265 | Apertured electrode (e.g., grid) supported between
two other electrodes: |
| | This subclass is indented under subclass 252. Miscellaneous discharge devices having a foraminous or grid
electrode supported between two other electrodes.
| | (1)
Note. As this is the miscellaneous subclass under
subclass 252 where the discharge device is provided with a grid
or apertured electrode, cross-references of disclosures
classified either as original copies or cross-reference
copies in subclass 253 to 264 are not placed in this subclass. |
| | (2)
Note. In some of the devices in this subclass the
foraminous or grid electrode is intended to be used to control the
discharge between the anode and cathode of the discharge device. In
other of the devices, the interposed foraminous or grid-like
electrode is intended to be used as an anode in the discharge device. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 241, | where the discharge device is provided with a plurality
of discharge electrodes which are mounted in side by side, coaxial
or concentric relation, an end of the electrodes being
located in substantially coplanar relation, a shield electrode
extending across the ends of the electrodes. |
| 245, | where the discharge device includes four or more
electrodes which are arranged to form at least two different discharge
spaces, one of the discharge spaces having a foraminous
or grid electrode mounted therein. |
| 247, | for this subject matter where the envelope of the
discharge device is formed of metal or conductive material, the hollow
metal or conductive portion of the envelope being designed for use
as an electrode of the discharge device, and having a foraminous
or grid electrode supported by the end closure of the hollow metal
or conductive envelope portion. |
| 248, | where the envelope of the discharge device is made
of metal or conductive material, and a plurality of electrodes, including
a foraminous or grid electrode, are supported by the metallic
or conductive envelope wall. |
| 249, | for this subject matter where the discharge device
envelope is elongated, and a plurality of electrodes, including
a foraminous or grid electrode, are supported in spaced
relation along the longitudinal axis of the envelope. |
| 253, | through 264, see (1) Note, above. |
| 293+, | for patents for discharge devices within the class
definition which have a foraminous or grid electrode interposed
between two other electrodes and where no significant supporting and/or
spacing structure for the electrodes is claimed. |
| 348+, | for the structure of foraminous or grid electrodes, per
se. |
|
| | |
| 266 | Stem or envelope structure: |
| | This subclass is indented under subclass 252. Devices which have the structure of the envelope part or
the envelope stem or press which supports the electrode supporting
wire, rod or tube modified.
| | (1)
Note. This subclass includes patents where significant
structure of the envelope part, stem or press which supports the
electrode supporting wire, rod or tube is claimed. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 242, | where the discharge device has a shield supported
by or forming part of the envelope stem. |
| 246+, | for discharge devices under subclass 243 which have
at least a portion of the envelope wall formed of metal or conductive
material, the metallic or conductive portion being designed
for use as an electrode, means being provided to support
an electrode within the discharge device. |
| 248, | for discharge devices under subclass 243 which have
have at least a part of the envelope wall formed of metal or conductive
material, a plurality of electrodes being supported by
the metallic or conductive wall of the envelope. |
| 271, | for devices under subclass 238 where the device
has an envelope and a filament supported within the envelope, the
structure of the envelope part or the envelope stem or press which
supports the electrode supporting structure being modified. |
| 290, | for miscellaneous devices under subclass 238 where
the device has an envelope and an electrode supported within the
envelope, the structure of the envelope part or the envelope
stem or press which supports the electrode supporting structure
being modified. |
| 317+, | and the classes and subclasses specified in the
notes to the definition of those subclasses for the structure of envelopes
for discharge devices and electric lamps. |
| 626, | for gas or vapor type discharge devices which have
a shield (where may be a part of the envelope wall, stem
or press) for an electrode support. |
|
| | |
| 267 | Plural rod electrodes: |
| | This subclass is indented under subclass 243. Discharge devices having means for supporting and/or
spacing a plurality of rod-like electrodes.
| | (1)
Note. This subclass includes arc lamps and similar
discharge devices which are provided with a plurality of rod-like electrodes
and which are usually intended to have the arc or other discharge
maintained between the ends of the electrodes. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 238, | for patents claiming the structure for supporting
only a single rod electrode of a discharge device. |
| 325, | for patents claiming electric discharge devices
having rod-like electrodes where no significant supporting
and/or spacing structure is claimed. |
| 357, | and the subclasses specified in the notes to the
definition of that subclass for the structure of rod electrodes, per se. |
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes, appropriate subclasses for discharge devices of
the consumable electrode type (e.g., arc
lamps and similar devices having means for feeding the electrodes
together as they are consumed) which have supporting and/or spacing
structure for a plurality of rod-like electrodes. |
|
| | |
| 268 | Insulating spacer between discharge electrodes: |
| | This subclass is indented under subclass 243. Miscellaneous discharge devices which have an insulating
spacer member interposed between two of the discharge electrodes.
| | (1)
Note. For the definition of "spacer", see (2) Note
to the definition of subclass 238. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 246, | for discharge devices which have a tubular envelope
portion of insulating material, the ends of the tubular
member having closures of conductive material which are designed
for use as electrodes of the discharge device, the electrodes
and the insulating tubular portion forming the envelope of the discharge
device. |
| 257+, | and the subclasses specified in the notes to the
definition of those subclasses for discharge devices which are provided
with an envelope and which have an insulating spacer interposed
between two discharge electrodes or their supports, the
electrodes being supported by support wires, rods or tubes
within the envelope. |
|
| | |
| 269 | With vibration damping device: |
| | This subclass is indented under subclass 238. Devices which have in addition to the supporting and/or
spacing structure for the electrodes, means to damp mechanical
vibrations of an electrode or an electrode support.
| | (1)
Note. The means provided is sometimes a weight mounted
upon the electrode or electrode support so as to give the electrode
a greater mass so that the vibrations are damped. |
| | (2)
Note. Where the vibration damping means involves
only the structure of the electrode or the electrode supporting means, such
as providing either rigid or resilient supporting means or making
the electrode or its support of a specific shape, the patent
is not classified in this subclass, but will be found in
subclass 238 or one of the other subclasses indented under subclass
238. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 50, | for devices under the class definition which are
provided with a detachable electric connector (e.g., socket) or support
which includes resilient supporting means for the lamp or discharge
device or which is provided with vibration damping means. |
SEE OR SEARCH CLASS:
| 188, | Brakes, for miscellaneous means for retarding the motion of moving
mechanism by friction, by positive engagement of elements
or by the internal resistance of a fluid or a field of force. See
especially
subclasses 378+ for structures which include a weight designed
for attachment to a moving member to damp the vibrations of the member. |
| 248, | Supports,
subclasses 560+ for miscellaneous resilient supports. |
|
| | |
| 270 | For indirectly heated cathode: |
| | This subclass is indented under subclass 238. Devices which have supporting and/or spacing structure
for an indirectly heated cathode.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 263, | and the subclasses specified in the notes thereto
where the device is a discharge device which has a plurality of
electrodes including an indirectly heated cathode supported by support structure
within an envelope. |
| 310, | and the subclasses specified in the notes to the
definition of that subclass for discharge devices which have an indirectly
heated cathode. |
| 337+, | for the structure of indirectly heated cathodes, per
se. |
|
| | |
| 271 | For filament: |
| | This subclass is indented under subclass 238. Devices which have supporting and/or spacing structure
for a filament.
| | (1)
Note. Many of the patents in this and the indented
subclasses are patents for incandescent lamps. Where only
the supporting and spacing structure for an incandescent lamp filament
is disclosed and claimed, the patent is classified in this
or one of the indented subclasses and is not cross-referenced
into any of the subclasses below this or the indented subclasses.
Where novel structure in addition to the mere filament supporting and/or
spacing structure is disclosed or claimed, appropriate
cross-references are made. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 244+, | for discharge devices under subclass 238 which have
an envelope and a plurality of electrodes, one of which
is a filament supported within the envelope. |
| 315+, | for miscellaneous incandescent lamps.
Patents claiming incandescent lamps but which do not claim any significant
supporting and/or spacing structure for the lamp filament
are classified in subclasses 315+ or in one of the subclasses
specified in the notes to the definition of that subclass. |
SEE OR SEARCH CLASS:
| 248, | Supports,
subclasses 49+ for miscellaneous pipe or cable supports. |
|
| | |
| 272 | Plural filaments: |
| | This subclass is indented under subclass 271. Devices having supporting and/or spacing structure
for a plurality of filaments at least two of which are separately
energizable.
| | (1)
Note. Where the device has a plurality of filaments
all of which are connected to the same lead-in wires so
that all of the filaments must be energized together, the
structure is considered to be supporting and/or spacing
structure for a plural section filament and classified in subclass
273. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 245, | for discharge devices under subclass 238 which have
means for supporting and/or spacing a plurality of electrodes
which form a plurality of separate discharge spaces, at
least two of which are emissive filaments. |
| 273, | see (1) Notes, above. |
| 306, | and the subclasses specified in the notes to the
definition of that subclass for discharge devices under the class definition
which have a plurality of emissive filaments and which do not include
any significant supporting and/or spacing structure for
the electrodes. |
| 316, | for incandescent lamps which have a plurality of
separately energized filaments which do not involve any significant
supporting and/or spacing structure for the filaments. |
|
| | |
| 273 | Plural section filament: |
| | This subclass is indented under subclass 271. Devices having supporting and/or spacing structure
for a plural section filament.
| | (1)
Note. A plural section filament is a filament which
is composed of a plurality of filament wires connected to common leading-in
wires. The plurality of filaments may be connected to
the leading-in wires so that the filament sections are electrically
connected in parallel, or a filament section may be connected
to a leading-in wire and a conductive support, another
filament section being connected to the same conductive support and
another leading-in wire so that the filament sections are
electrically connected in series. One of the filament
sections may have supports which are separate from the supporting
structure for another filament section, the filaments being
electrically connected by leading-in wires which may or
may not also be supports for the filament sections. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 264, | for discharge devices under subclass 238 having
an envelope and a plurality of electrodes including a plural section
filament supported within the envelope. |
| 272, | for devices under subclass 271 for supporting a
plurality of separately energizable filaments. |
|
| | |
| 274 | Supports supported by opposed parts of envelope: |
| | This subclass is indented under subclass 271. Devices which have the filament within an envelope, the
filament being supported within the envelope by means of supports (e.g., support
wires, rods, or tubes), at least
one of the supports being supported by a part of the envelope wall
which is opposed to or spaced at a distance from the part of the
envelope wall which supports either a different portion of the same
support or another support.
| | (1)
Note. This and the indented subclass does not include
devices where all the supporting and/or spacing means are sealed
into a common stem or press of the envelope even though the supporting and/or
spacing means are widely spaced from each other. |
| | (2)
Note. Some devices in this subclass have the lead-in
wires which pass through the envelope wall at the same end of the
envelope so that only a single base is needed for the device. |
| | (3)
Note. One of the more common structures found in
this subclass is the so-called "multiple-ended" incandescent lamp, that
is, a lamp having a stem or press at each end of a substantially
tubular envelope, the filament supports being supported
by each of the stems or presses. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 253+, | for discharge devices having an envelope and support
structure for a plurality of electrodes. The support structure
being supported by opposed or spaced portions of the envelope. See
subclass 255 where the same electrode is supported by supports which are
supported at spaced or opposed portions of the envelope. |
| 286, | for other devices under subclass 238 which have
an envelope and an electrode therein, the electrode being
supported by means of supports (e.g., wires, rods
or tubes) which are supported by opposed or spaced parts
of the envelope wall. |
| 288, | and the subclasses specified in the notes to the
definition of this subclass for other devices under subclass 238 which
have an envelope and an electrode therein, a spacer member
being positioned between the envelope wall and the electrode or
an electrode support. |
SEE OR SEARCH CLASS:
| 174, | Electricity: Conductors and Insulators,
subclass 99 for conduits for electrical conductors which have
interior supports for supporting one or more electric conductors
therein. |
|
| | |
| 275 | Insulator supports filament: |
| | This subclass is indented under subclass 271. Devices in which the supporting structure for the filament
includes an electrically insulating member.
| | (1)
Note. Including in this subclass are supporting
structures such as glass or ceramic rods having metal hooks or anchors
attached to it for supporting the filament. Also included
are supporting structures wherein, a glass bead is mounted
upon a metal supporting rod, the glass bead having means
for supporting the filament. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 257, | for discharge devices under subclass 238 which have
an envelope and a plurality of electrodes supported by supports, within
the envelope, an insulating spacer member being interposed
between a plurality of the electrodes or electrode supports, a filament
being supported by the insulating spacer member. |
| 289, | for other devices under subclass 238 which have
an envelope and an electrode other than a filament supported by
means of an insulating or ceramic support rod or tube within the
envelope. |
|
| | |
| 276 | Conductive member supports insulator: |
| | This subclass is indented under subclass 275. Devices which have the insulating member which supports
the filament supported by an electrically conductive supporting
member (e.g., wire, rod
or tube.)
| | (1)
Note. The conductive wire, rod or tube may
be used as one of the lead-in wires for conducting electrical
current to the filament. |
| | (2)
Note. Among the structures found in this are devices
having an insulating plate or bar supported by a conductive wire
or rod, a filament being supported by the insulator.
Sometimes, the filament is V-shaped or W-shaped, and
the insulating rod is provided with means to engage and support
the filament at a plurality of points. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 257, | for discharge devices under subclass 238 which have
an envelope and a plurality of electrodes supported by conductive
supports within the envelope an insulating spacer member being interposed
between a plurality of the electrodes or electrode supports, a
filament being supported by the insulating spacer member. |
| 264, | for discharge devices under subclass 238 which have
an envelope and a plurality of electrodes therein, the supporting
structure for the electrodes including means to support a
U-shaped, V-shaped or W-shaped
filament. |
| 285, | for devices under subclass 238 which are provided
with an envelope and an electrode other than a filament, therein, the
electrode being supported by an intermediate supporting member, such
as an insulating plate, rod, or bead, the
intermediate member being supported by a conductive support. |
|
| | |
| 277 | Insulating standard supports filament brackets or anchors: |
| | This subclass is indented under subclass 275. Devices having an insulating standard or rod which supports
filament anchors or brackets, the filament anchors or brackets
engaging and supporting the filament.
| | (1)
Note. The devices in this and the indented subclass
include incandescent lamps which are provided with an envelope have
a stem, a glass or ceramic rod or standard being supported
by the stem, the rod or standard usually being fused to
or being integral with the stem, filament supporting brackets
or anchors being attached to the rod or standard, usually
by fusing the brackets or anchors to the rod or standard, the
filament being supported by the supporting brackets. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 289, | and the subclasses specified in the notes to the
definition of that subclass for other devices under subclass 238 which
have an envelope and an electrode other than a filament supported by
an insulating or ceramic support rod therein. |
SEE OR SEARCH CLASS:
| 248, | Supports,
subclasses 65+ for brackets for supporting pipe or cables, subclasses
300+ for brackets formed of sheet material, and
subclasses 302+ for brackets formed of wire. |
|
| | |
| 278 | Tension device for filament: |
| | This subclass is indented under subclass 271. Devices which include means to apply a tension force to
the filament.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 257, | for discharge devices which are provided with an
envelope and a plurality of electrodes supported by supports therein, a
spacer member being interposed between the electrodes or the electrode
supports, a filament being supported by tension applying
means, the tension means being supported by the spacing
member. |
| 284+, | for devices under subclass 238 which include an
envelope and an electrode supported by supporting means therein, the
supporting means being resilient or flexible. |
|
| | |
| 279 | Support intermediate of filament ends: |
| | This subclass is indented under subclass 271. Devices which have supporting means which engage and support
the filament intermediate the ends of the filament.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 273, | where the device includes means for supporting a
plural section filament, that is, a filament which
is composed of a plurality of separate sections of filament wire. |
| 274, | where the device includes an envelope, and
the filament supports are supported by opposed or spaced parts of
the envelope wall. |
| 276, | where the device has the filament supported by an
electrical insulating member, the insulating member being supported
by an electrically conductive wire, rod or tube. |
| 277, | for this subject matter where the device is provided
with an insulating standard or rod having a plurality of filament
anchors or brackets supported by the rod or standard, so
that the filament is supported at one or more intermediate points. |
| 278, | for this subject matter where the support which
engages the intermediate portion of the filament includes means for
maintaining the filament under a tension force. |
|
| | |
| 281 | Support mounted in or around aperture in conductive wall
or plate: |
| | This subclass is indented under subclass 238. Devices which have the support for the electrode mounted
in or around an aperture in a conductive wall or plate.
| | (1)
Note. In some of the devices in this subclass, the
support for the electrode or the electrode is intended to pass through
the conductive wall or plate. In other devices, the
electrode supporting means surrounds an aperture in the conductive wall
or plate and the electrode is located in the same side of the wall
or plate as the supporting means, the aperture being provided
so that the electrode may cooperate through the aperture with other means
located upon the opposite side of the wall or plate. |
| | (2)
Note. Neither the electrode nor its supporting means
need necessarily be insulated from the conductive wall or plate. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 282, | and the subclasses specified in the notes to the
definition of that subclass for devices under subclass 238 which have
an envelope which has a portion of the wall made of metal or conductive
material and an electrode, the electrode being supported
by the conductive wall portion or being supported by means of a
support which is supported by the conductive wall portion. |
SEE OR SEARCH CLASS:
| 174, | Electricity: Conductors and Insulators,
subclasses 151+ for devices for insulating a conductor from a wall
or plate through which the conductor extends. |
|
| | |
| 282 | Conductive envelope supports electrode: |
| | This subclass is indented under subclass 238. Devices which have an envelope and an electrode, at
least part of the envelope formed of electrically conductive material, either
the electrode being supported by the conductive portion of the envelope
wall or having the electrode supported by supporting means which
is supported by the conductive portion of the envelope wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 239+, | where the device is enclosed within an envelope
which has an electrically conducting envelope wall portion, the wall
portion being disclosed or claimed as being a shield. |
| 246+, | where the devices is a discharge device and the
conductive envelope wall portion is disclosed or claimed as being
an electrode of the device, the supporting and/or
spacing structure for a plurality of electrodes which are supported
by the conductive wall portion being claimed. |
| 248, | where the devices is a discharge device having a
conductive envelope wall portion which is not disclosed or claimed
as being either a shield or an electrode and the supporting and/or spacing
structure for a plurality of electrodes which are supported by the conductive
wall portion is claimed. |
| 281, | where the device has a conductive envelope portion
which is provided with an aperture an electrode being mounted in
or around the aperture. |
SEE OR SEARCH CLASS:
| 220, | Receptacles,
subclass 2.3 for envelopes, per se, which
have conductive wall portions. |
|
| | |
| 283 | Electrode supported by envelope: |
| | This subclass is indented under subclass 238. Devices which have an envelope, the electrode being
supported by the envelope.
| | (1)
Note. The electrode need not be supported directly
upon the envelope, but may be supported upon support rods
or other support members which are supported by the enclosing envelope. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 239+, | for devices under subclass 238 which have an envelope
and a shield enclosed by the envelope, the shield being
supported by the envelope. |
| 244+, | for this subject matter where the device is a discharge
device and a plurality of electrodes are supported by the envelope. |
| 269, | for this subject matter where the device includes
a vibration damping means for damping vibrations of the electrode
or electrode support. |
| 270, | for this subject matter where the electrode is an
indirectly heated cathode. |
| 271, | for this subject matter where the electrode is a
filament. |
| 281, | where the envelope has a conductive wall portion
with an aperture in it, the electrode support being mounted
in or around the aperture. |
| 282, | where the envelope is provided with a conductive
wall portion, this electrode being supported by the conductive wall
portion. |
|
| | |
| 284 | Electrode supporting member supported by envelope: |
| | This subclass is indented under subclass 283. Devices which have the electrode supported by a supporting
member which is supported by the envelope.
| | (1)
Note. In the devices of this and the indented subclasses, the
electrode is supported within the envelope by means of supporting
member, the supporting member being attached to and supported by
the envelope. |
SEE OR SEARCH CLASS:
| 174, | Electricity: Conductors and Insulators,
subclass 50.54 for miscellaneous hermetically sealed envelopes of
general application which are limited to electrical use which include means
to mount an electrical device within the envelope. |
|
| | |
| 285 | Supporting wire, rod, or tube supported
by envelope: |
| | This subclass is indented under subclass 284. Devices having the electrode supported by a supporting wire, rod, or
tube, which is supported by the envelope.
| | (1)
Note. The supporting wire, rod or tube is
sometimes sealed into the stem or press of the envelope and is usually
used as the lead-in wire for the electrode. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 252+, | and the subclasses specified in the notes thereto
where the device is a discharge device having a plurality of electrodes
supported by the envelope. |
| 271+, | and the subclasses specified in the notes thereto
where the electrode which is supported is a filament. |
| 282, | where the envelope is provided with a metallic or
conductive part, the support wire, rod or tube
being supported by the metallic or conductive part of the envelope. |
|
| | |
| 286 | At spaced or opposed portions of envelope: |
| | This subclass is indented under subclass 285. Devices which have (1) the electrode supported by
a plurality of support wires, rods or tubes at least one
of the support wires, rods, or tubes being supported
by a part of the envelope wall which is opposite to or spaced at
a distance from the part of the envelope wall which supports another
of the supporting wires, rods or tubes, or (2) which
have at least one of the supporting wires, rods or tubes
for the electrode supported by a part of the envelope wall which is
opposite to or spaced at a distance from the part of the envelope
wall which supports a different portion of the support wire, rod
or tube.
| | (1)
Note. This subclass does not include devices where
all the support rods, wires or tubes are sealed into a
common stem or press of the envelope even though the support wires, rods
or tubes are widely spaced from each other. |
| | (2)
Note. One of the common types of structures found
in this and the indented subclasses is the so-called "multiple ended" devices, that
is devices having a stem or press at each end of a substantially
tubular envelope, an electrode support wire, rod, or
tube being supported by each of the stems or presses. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 255, | where the device is a discharge device having a
plurality of electrodes, at least one of the electrodes
being supported by support wires, rods or tubes which are
supported by spaced or opposed parts of the envelope wall. |
| 274, | where the electrode supported by the support wires, rods
or tubes is a filament. |
| 318.01+, | for a device within the class definition which is
provided with an envelope, the device having at least a
base and an electrical connector attached to spaced or opposed parts
of the envelope. |
| 318.12, | for a device within the class definition having
an envelope and an electrical connector attached to spaced or opposed
parts of the envelope |
|
| | |
| 287 | Support collar surrounding envelope stem: |
| | This subclass is indented under subclass 285. Devices in which the envelope has a stem or press, the
support wire, rod or tube being attached to and supported
by a ring shaped clamping member or collar, the ring shaped member
or collar being fastened about the stem or press. |
| | |
| 288 | Spacer between envelope and support or electrode: |
| | This subclass is indented under subclass 285. Devices having a spacer member interposed between the envelope
of the discharge device and an electrode or electrode support.
| | (1)
Note. For the definition of spacer, see (2) note
to the definition of subclass 238. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 258, | where the device is a discharge device having a
plurality of electrodes. |
| 292, | for miscellaneous spacing elements, per
se. |
|
| | |
| 289 | Ceramic or insulating support: |
| | This subclass is indented under subclass 285. Devices which have the supporting rod or tube formed of
insulating or ceramic material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 256, | for discharge devices which have a plurality of
electrodes enclosed within an envelope, an insulating or
ceramic electrode supporting rod being supported by the envelope. |
| 275+, | where the electrode supported is a filament. |
|
| | |
| 290 | Stem or envelope structure: |
| | This subclass is indented under subclass 285. Devices which have the structure of the envelope part or
the envelope stem or press which supports the electrode supporting
wire, rod or tube modified.
| | (1)
Note. This subclass includes patents where significant
structure of the envelope part, stem or press which supports the
electrode supporting wire, rod or tube is claimed. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 266, | where the device is a discharge device having a
plurality of electrodes supported by supporting wires, rods
or tubes. |
| 271, | where the electrode supported by the support wires, rods
or tubes is a filament. |
| 281, | where the envelope includes a conductive wall portion
having an aperture, the support being mounted in or around
the aperture in the conductive wall portion. |
| 282, | where the envelope is provided with a metallic or
conductive wall portion, the electrode support being attached to
the conductive wall portion. |
| 317+, | and the classes specified in the notes to the definition
of those subclasses for the structure of envelopes for lamps and
discharge devices. |
|
| | |
| 291 | Electrode formed by coating on envelope: |
| | This subclass is indented under subclass 283. Devices in which the electrode is a conductive coating upon
the envelope wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 355, | and the subclasses specified in the notes thereto
for miscellaneous coated electrodes. |
| 485, | for devices under the class definition which have
a fluorescent or phosphorescent material coated upon the envelope
wall. |
| 541+, | for photosensitive discharge devices which have
the cathode coated upon the envelope wall. |
SEE OR SEARCH CLASS:
| 427, | Coating Processes,
subclasses 105+ for processes of coating the interior of hollow
electrical articles. |
| 428, | Stock Material or Miscellaneous Articles,
subclasses 34.1+ for a tube or conduct type of article which may have
a coating on the internal wall thereof. |
|
| | |
| 292 | Supporting and/or spacing elements: |
| | This subclass is indented under subclass 238. Miscellaneous supporting and spacing elements which are
not classified in any other class and which are designed for use
with the devices.
SEE OR SEARCH CLASS:
| 174, | Electricity: Conductors and Insulators,
subclass 138 for miscellaneous supports and spacing members
which are made of insulating material. |
| 248, | Supports, appropriate subclasses, for miscellaneous
supports. |
|
| | |
| 293 | DISCHARGING DEVICES WITH APERTURED ELECTRODE (E.G., GRID) INTERPOSED
BETWEEN TWO ELECTRODES: |
| | This subclass is indented under the class definition. Discharge devices which are provided with three or more
electrodes, at least one of the electrodes being an apertured
or grid-like electrode, the apertured or grid-like
electrode being interposed between two of the other electrodes so
that a straight line drawn between the two other electrodes will
pass through the apertured or grid-like electrode.
| | (1)
Note. The apertured or grid-like electrode
may be formed of open work material such as wire mesh or perforated sheet
material, or may be formed of wires or bars, such
as coiled wire or otherwise provided with one or more openings in
the wall of the electrode. |
| | (2)
Note. To be classified in this subclass the claims
must state that the grid electrode is interposed between two other electrodes.
Where a patent claims only that the discharge device includes a
cathode, an anode, and a grid electrode, the patent
is excluded from this and the indented subclasses and will be classified
in subclass 308 or one of the subclasses specified in the notes
to the definitions of that subclass. |
| | (3)
Note. In some of the devices in this and the indented
subclasses the foraminous or grid-like electrode is intended
to be used to control the discharge between the cathode and anode
of the discharge device. In other of the devices, the
interposed foraminous or grid-like electrode is intended
to be used as an anode in the discharge device. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 5+, | where the device includes a plurality of separate
discharge devices which are structurally combined to form a single
unitary device (e.g., multiple unit
devices), one or more of the discharge devices
having an apertured or grid electrode interposed in the discharge
space between two of the electrodes. |
| 146+, | where the apertured or grid electrode is mounted
so that it is movable. |
| 153+, | where the discharge device is also provided with
a magnetic device for influencing the space discharge. |
| 167, | where the discharge device has a liquid electrode. |
| 238+, | for patents for discharge devices which include
an apertured or grid electrode interposed between two other electrodes
where significant supporting and/or spacing structure for
the electrodes is claimed. Where the claims include significant
supporting and/or spacing structure for the electrodes, the
patent is classified in subclasses 238+ and cross-referenced to
this or one of the indented subclasses when structure in addition
to the supporting and/or spacing structure for the electrodes
is claimed or disclosed. See especially indented subclass
265. |
| 308, | and the subclasses specified in the notes to the
definition of that subclass for other discharge devices which are provided
with a discharge control electrode. Also see note 2 above. |
| 325, | for discharge devices provided with an electrode
which is formed of nonforaminous material which is permeable to
electrons. |
| 326, | for electrode structures which have only a single
aperture. |
| 348+, | for the structure of foraminous and grid-like
electrodes, per se. |
| 356, | for the structure of tubular and other hollow sleeve-like
electrodes. |
| 441, | and the subclasses specified in the notes thereto, for
cathode ray devices which have an apertured electrode interposed
between the cathode and the target for concentrating, shaping, accelerating, or
decelerating the cathode-ray beam. |
| 537, | for photosensitive discharge devices which have
an apertured or grid electrode interposed between two other electrodes. |
| 597+, | and the subclasses specified in the notes thereto
where the discharge device is provided with an envelope containing
an atmosphere of gas or vapor. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 33 through 63for discharge devices which have a grid or other
apertured electrode interposed in the discharge space between two
electrodes and which also have a circuit element (e.g., inductance
switch, resistor) structurally combined with the
discharge device so as to form a unitary device. See subclass
34 where the discharge device includes an antenna, subclasses
35+ where the structural combination includes a plurality
of such discharge devices and a circuit element, subclass
39 where the discharge device includes a wave guide, coaxial
cable or resonate parallel wire transmission line, subclass
39.63 where the discharge device has an electrode formed
so as to provide a structure having distributed inductance and capacitance, and
operable in a magnetic field (e.g., magnetrons), subclasses
41+ where the discharge device has an inductive impedance connected
between the electrodes, 51+, where the
discharge device has structurally combined therewith an electric
generator or piezo-electric device, and subclasses
56+ for the miscellaneous discharge devices which have
an apertured or grid electrode interposed in a discharge space between
two other electrodes and which have a circuit element structurally
combined therewith. |
|
| | |
| 294 | Non-uniformly spaced from another electrode: |
| | This subclass is indented under subclass 293. Discharge devices which have a foraminous or grid-like
electrode interposed in the inter-electrode space and spaced
form one of the other electrodes so that different parts of the foraminous
or grid-like electrode are at different distances from
such other electrode.
| | (1)
Note. The foraminous or grid electrode may be uniformly
spaced from one of the other electrodes, the second of
the other electrodes begin nonuniformly spaced from the foraminous
or grid electrode and from the other electrode. This subclass
includes discharge devices where the foraminous or grid electrode
is eccentrically spaced in the space between the cathode and anode, and
discharge devices where the foraminous or grid-like electrode
is spaced in parallel relationship with the cathode and anode but
has a different cross-section configuration from that of
the cathode or anode (e.g., where
the anode is circular and concentric with the cathode, the
grid electrode being oval in cross-section). |
| | (2)
Note. Some of the devices in this subclass are intended
to be used as variable-mu discharge devices. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 349, | for structure of foraminous and grid-like
electrodes where the electrode wall surface which is provided with the
openings does not form a straight hollow sleeve and is of a nonstraight surface
configuration with the openings in the electrode lying in at least two
different planes, and for the structure of foraminous and
grid-like electrodes having the wall surface of the electrode
which contains the openings in the form of a hollow sleeve, the sleeve
having a cross-sectional area at one region of the electrode, which
is different from the cross-sectional area at another region
of the electrode, such as electrodes which are in the form
of a truncated cone, sphere, or which are barrel
shaped or hour-glass shaped. |
|
| | |
| 295 | Interposed electrode with non-uniform mesh area (e.g., variable
mu): |
| | This subclass is indented under subclass 293. Discharge devices which have a foraminous or grid-like
electrode interposed in the inter-electrode space, the
foraminous or grid-like electrode having the ratio of area
of free passage through the openings in the electrode to the obturating
area of the electrode in one region different from such ratio in
another region of the electrode.
| | (1)
Note. This subclass includes discharge devices having
a foraminous or grid-like electrode interposed between
two other electrodes where the foraminous or grid-like
electrode has at least one opening in the electrode of a different
area from the area of another of the openings, or where the
openings in the electrode are nonuniformly spaced with respect to
each other, or where the electrode is formed of a wire
coil or helix which has a nonuniform pitch for the turns of the
coil or helix. |
| | (2)
Note. Some of the devices in this subclass are intended
to be used as variable-mu discharge devices. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 349, | for foraminous and grid-like electrodes
which have a ratio of free passage area to obturating area in one region
of the electrode which is different from such ration in another
region of the electrode. |
|
| | |
| 297 | Serially arranged: |
| | This subclass is indented under subclass 296. Discharge devices having a plurality of apertured or grid-like
electrodes interposed in superimposed relation with respect to each other
in the inter-electrode space so that a straight line drawn
between the electrodes which define the inter-electrode
space will pass through both of the apertured or grid-like
electrodes.
| | (1)
Note. This subclass includes, for example, plural
grid discharge devices such as discharge devices provided with a
screen grid and a control grid, discharge devices with
two control grids, discharge devices with a control grid
and a suppressor grid, and discharge devices where one
of the apertured or grid-like electrodes is intended to
be used as a first anode and another apertured or grid-like
electrode is intended to be used as a control grid, one
of the electrodes defining the inter-electrode space being
a second anode. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 295, | where one of the grid-like electrodes has
the ratio of area of free passage through the openings in the electrode to
the obturating area of the electrode different from such ratio in
another region of the electrode (e.g., variable-mu
discharge devices). |
| 447, | for cathode ray devices which have a plurality of
apertured or grid-like electrodes interposed between the cathode
and the target. |
| 599, | where the discharge device is provided with an envelope
containing an atmosphere of gas or vapor. |
|
| | |
| 298 | Plural interelectrode discharge: |
| | This subclass is indented under subclass 297. Discharge devices which are provided with either a plurality
of separate cathode or a plurality of separate nonemissive electrodes (e.g., anodes) in
addition to the interposed apertured or grid-like electrodes, so
that the discharge device has at least two separate inter-electrode spaces, at
least two apertured or grid-like electrodes being interposed
in one of the inter-electrode spaces in superimposed relation
with respect to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 5+, | for plural unit discharge devices which have at
least two cathodes and an anode for each of the cathodes, at least
one of the discharge devices having a plurality of serially arranged apertured
or grid-like electrodes interposed in the inter-electrode
space. |
| 301, | for other discharge devices which are provided with
a plurality of inter-electrode spaces, at least
two of the inter-electrode spaces having an apertured or
grid-like electrode disposed therein, or at least
one of the inter-electrode spaces having a plurality of apertured
or grid-like electrodes in nonsuperimposed relation. |
|
| | |
| 299 | Aligned apertures (e.g., beam
power): |
| | This subclass is indented under subclass 297. Discharge devices where the openings in at least two of
the apertured or grid-like electrodes are located in aligned
relation upon a straight line drawn between the electrodes defining
the inter-electrode space so that the effective obstructing
area of such two apertured or grid-like electrodes to the
space discharge is not greater than the effective obstructing area
of either of the two foraminous or grid-like electrodes.
| | (1)
Note. This subclass includes only patents as originals
which claim the aligned relationship of the openings in the two apertured
or grid-like electrodes. Only patents where there
is a definite statement in the specification that the openings in
the two apertured or grid-like electrodes are aligned along
a straight line are cross-referenced into this subclass. |
| | (2)
Note. This subclass includes discharge devices of
the type known as beam power tubes. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 409+, | for plural beam generators which may include control
electrons. |
| 447+, | for control electrodes between the cathode and target. |
|
| | |
| 300 | Three or more serially arranged: |
| | This subclass is indented under subclass 297. Discharge devices having three or more apertured or grid-like
electrodes interposed in superimposed relation with respect to each other
in the inter-electrode space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 447, | for cathode-ray tubes which have three
or more apertured or grid-like electrodes interposed between
the cathode and target. |
| 599, | where the discharge device has an envelope containing
an atmosphere of gas or vapor |
|
| | |
| 301 | Plural interelectrode discharge spaces: |
| | This subclass is indented under subclass 296. Discharge devices which have either a plurality of separate
cathodes or a plurality of separate nonemissive electrodes (e.g., anodes) in
addition to the interposed apertured or grid-like electrodes
so that the discharge device has at least two separate inter-electrode
spaces.
| | (1)
Note. In the discharge devices in this subclass
there may be a plurality of apertured or grid-like electrodes
in one of the inter-electrode spaces, the apertured
or grid-like electrodes being in nonsuperimposed relation, or
there may be only one apertured or grid-like electrode
in each of the inter-electrode spaces. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 6, | for plural unit discharge devices which have at
least two cathodes and a separate anode for each cathode there being
an apertured or grid-like electrode interposed in the discharge space
between each anode and cathode. |
| 239+, | and 245, for discharge devices which include
significant supporting and/or spacing structure for a plurality
of discharge electrodes which form a plurality of separate inter-electrode discharge
spaces. See subclasses 239+ where the device
includes supporting and/or spacing structure for a shield
member which is interposed between two of the separate discharge spaces. |
| 245, | see the reference to subclass 239 above. |
| 296, | for discharge devices having only one inter-electrode
discharge space and which have a plurality of apertured or grid-like
electrodes in the inter-electrode discharge space in nonsuperimposed
relation. |
| 298, | where at least one of the inter-electrode
spaces contains a plurality of apertured or grid-like electrodes
in superimposed relation with respect to each other. |
| 302, | and 303, for discharge devices having a
plurality of inter-electrode spaces, an apertured
or grid-like electrode being interposed in only one of
the inter-electrode spaces. See subclass 302
where the discharge device has a plurality of cathodes, and
subclass 303 where the discharge device has a plurality of nonemissive
electrodes (e.g., anodes). |
| 597+, | where the discharge device has an envelope containing
a gas or vapor. |
|
| | |
| 302 | Plural cathodes: |
| | This subclass is indented under subclass 293. Discharge devices which have a plurality of separate cathodes.
| | (1)
Note. The discharge device may be provided with
a nonemissive electrode (e.g., anode) in
addition to the apertured or grid-like electrode so that
the discharge device has a plurality of separate inter-electrode
spaces and the apertured or grid-like electrode may be
interposed in both of the inter-electrode spaces or may be
interposed in only one of the inter-electrode spaces, or
the discharge device may have only a plurality of separate cathodes
with the apertured or grid-like electrode disposed in the
space between two of the cathodes. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 5+, | for plural unit discharge devices which have at
least two cathodes and an anode for each cathode, one or more
of the inter-electrode spaces having an apertured or grid-like
electrode therein. |
| 245, | for discharge devices which have significant supporting
and/or spacing structure for a plurality of electrodes which
form a plurality of separate discharge spaces. |
| 298, | where the discharge device has a plurality of separate
discharge spaces with a plurality of superimposed apertured or grid-like
electrodes in at least one inter-electrode space. |
| 301, | where the discharge device has a plurality of inter-electrode
spaces with a plurality of apertured or grid-like electrodes
interposed in the inter-electrode space in nonsuperimposed
relation. |
| 306+, | and the subclasses specified in the notes thereto
for other discharge devices provided with a plurality of separate
cathodes. |
| 409+, | for cathode ray tubes which have a plurality of
cathodes and an apertured or grid-like electrode interposed
in the space between one of the cathodes and the target. |
| 597+, | where the discharge device has an envelope containing
a gas or vapor. |
|
| | |
| 303 | Three or more nonemissive electrodes (e.g., plural
anodes): |
| | This subclass is indented under subclass 293. Discharge devices which have a plurality of separate nonemissive
electrodes (e.g., anodes) in
addition to the interposed apertured or grid-like electrode.
| | (1)
Note. In the discharge devices in this subclass
which have a plurality of anodes, the apertured or grid-like
electrode may be interposed in only one of the inter-electrode
spaces (e.g., the device having
a triode section and a diode section) or the apertured
or grid-like electrode may be interposed in a plurality
of the inter-electrode spaces. |
| | (2)
Note. This subclass includes discharge devices which
have a cathode, an anode, an apertured or grid-like
electrode interposed between the cathode and anode, and
an electrode or shield (e.g., shield grid) disposed
outside of the inter-electrode discharge space (e.g., having
a shield grid which surrounds a cylindrical anode). |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 5+, | for plural unit discharge devices which have at
least two anodes and a cathode for each anode, one or more of
the inter-electrode spaces having an apertured or grid-like
electrode therein. |
| 245, | for discharge devices which include significant
supporting and/or spacing structure for a plurality of
discharge electrodes which form a plurality of separate discharge
spaces. |
| 298, | for this subject matter where the discharge device
has a plurality of apertured or grid-like electrodes interposed
between two other electrodes in superimposed relation with respect
to each other. |
| 301, | where the discharge device has a plurality of apertured
or grid-like electrodes, the discharge device
having either an apertured or grid-like electrode in each
inter-electrode space or a plurality of apertured or grid-like electrodes
in one discharge space in nonsuperimposed relation. |
| 302, | for discharge devices provided with a plurality
of cathodes and an apertured or grid-like electrode interposed
in one of the discharge spaces. |
| 306+, | and the subclasses specified in the notes thereto
for other discharge devices provided with a plurality of anodes. |
|
| | |
| 304 | Plural-parallel-section cathode with
electrode surrounding each section: |
| | This subclass is indented under subclass 293. Discharge devices which have a cathode which is composed
of a plurality of parallel sections, the apertured or grid-like
electrode being provided with a plurality of tubular parts, each tubular
part of the apertured or grid-like electrode completely
surrounding a different one of the parallel sections of the cathode.
| | (1)
Note. The tubular apertured or grid-like electrode
sometimes has the form of a figure 8 in cross-section, a
cathode section being disposed within each loop of the figure 8
with the cathode extending parallel to the longitudinal axis of
the tubular apertured or grid-like electrode. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 264, | for discharge devices which include significant
supporting and/or spacing structure for a plural section
filament. |
| 302, | for discharge devices having a plurality of separate
cathodes and a foraminous or grid-like electrode interposed
in the inter-electrode space. |
|
| | |
| 305 | DISCHARGE HEATED ANODE TYPE (E.G., CATHANODE): |
| | This subclass is indented under the class definition. Discharge devices which have an anode or target which is
designed to be heated by the electron bombardment form the cathode.
| | (1)
Note. This subclass includes discharge devices of
the cathanode type i.e., discharge devices
which have an electrode, known as the cathanode, which
is the anode with respect to a cathode which bombards it with electrons, the
electron bombardment being designed to heat the cathanode to electron
emission temperature so that another surface of the cathanode will
emit electrons to a third electrode which serves as the anode for the
cathode surface of the cathanode. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 8, | for discharge devices which are provided with a
separate body which is not intended to be used as an electrode and
which is designed to be heated to incandescence by the space discharge. |
| 39+, | and 47, for discharge devices which are
provided with means for preventing the flow of heat away from an electrode.
See subclasses 39+ where the electrode is within an envelope. |
| 103+, | and the subclasses specified in the notes thereto
for discharge devices having an electrode which emits secondary
electrons when bombarded by primary electrons. |
| 337+, | for the structure of indirectly heated cathodes, per
se. |
| 347, | for the structure of electrodes which are designed
to be incandescible upon electron bombardment. |
| 464, | for cathode-ray tubes having anodes or
targets which are designed to be heated to incandescence by the
cathode beam. |
| 588, | for discharge devices which have an envelope and
an atmosphere of gas or vapor, the discharge device having two
electrodes between which an ionizing discharge is to be maintained, the
ionizing discharge being a source of electrons for a discharge to
a third electrode, the discharge to the third electrode
being nonionizing (electronic). |
| 627+, | for discharge devices which contain a gas or vapor
and which have an electrode designed to be used alternately as a
cathode and as an anode when the discharge device is used with alternating
current, the electrode being designed to be heated to electron emissive
temperature by the ionic bombardment. Also, 627+, for
discharge devices containing an atmosphere of gas or vapor which
have an incandescible anode. |
|
| | |
| 306 | DISCHARGE DEVICES HAVING THREE OR MORE ELECTRODES: |
| | This subclass is indented under the class definition. Discharge devices which have three or more electrodes.
| | (1)
Note. See the glossary in the class definition for
the definition of a three or more electrode discharge device. |
| | (2)
Note. This is a residual subclass and provides only
for discharge devices having three or more electrodes which are not
provided for in the subclasses above. The search should
include the subclasses providing for special types of discharge devices
where a specific type of discharge device is involved.
For example, secondary emissive discharge devices (e.g., electron
multipliers) having three or more electrodes are classified
in subclasses 103+ above and not cross-referenced
to this subclass. Where the discharge device is provided
for in some general subclass above, such as subclasses
11+ (with temperature modifier), or
subclasses 238+ (with support and/or spacing
structure for electrode and/or shield) and structure
in addition to that provided for in the general subclass being disclosed, and
the patent is not cross-referenced to a subclass providing for
a special type of discharge device, the patent is cross-referenced
into this subclass. The notes below refer to some of the
subclasses which specifically provide for three or more electrode
discharge devices. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 1+, | for plural unit discharge devices which have at
least two cathodes and an anode for each cathode. |
| 103+, | and the subclasses specified in the notes thereto, for
discharge devices of the secondary emitter type (e.g., electron
multiplier) which have three or more electrodes. |
| 123+, | and 140, for spark plugs having 3 or more
electrodes. |
| 162, | for discharge devices which have three or more electrodes
and a magnetic device for influencing the space discharge. |
| 166, | 167 through 169, 170+ and 172, for liquid (e.g., mercury) electrode
discharge devices having three or more electrodes. See
subclass 166 where one of the electrodes is external of the envelope, 167
where one of the electrodes is an apertured or grid-like electrode, 168
and 169, where a plurality of the electrodes are anodes, 170+ where
one of the electrodes is an auxiliary starting electrode, and
subclass 172 for liquid electrode discharge devices which have two electrodes
immersed in the liquid electrode, the liquid electrode
being vaporized to initiate the discharge and to supply the gas
or vapor atmosphere in the device. |
| 234, | where the discharge device has one of the three
or more electrodes exterior to the envelope of the device. |
| 236, | for discharge devices which are provided with three
or more electrodes and means for selectively using the electrodes
so that the discharge device may be operated without one of the electrodes
being operated, one electrode being substituted for the
other when the first operated electrode becomes defective. |
| 238+, | for discharge devices which include supporting and/or
spacing structure for three or more electrodes. If structure
in addition to the electrode supporting and/or spacing
structure is disclosed or is claimed, the patent is cross-referenced
to this or one of the indented subclasses where the discharge device
has three or more electrodes if it is not specifically provided for
in a subclass other than subclasses 238+ which precedes
this subclass (306). |
| 293+, | for discharge devices which have an apertured or
grid-like electrode interposed in the inter-electrode
space between two other electrodes. |
| 305, | for discharge devices which have an electrode designed
to act as a cathode with respect to one electrode and an anode with
respect to a cathode, the electrode being heated by the
bombardment of electrons from the cathode and emitting electrons
to the anode. |
| 364+, | for cathode-ray tube having three or more
electrodes. |
| 531, | for photosensitive discharge devices which have
a plurality of photosensitive electrodes. |
| 540, | for photosensitive discharge devices which have
a plurality of cathodes, at least one of which is not photosensitive
and 540, for photosensitive discharge devices which have
a plurality of anodes. |
| 581, | where the discharge device has an envelope which
contains a gas or vapor. |
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclasses 7+ for consumable electrode discharge devices (e.g., arc lamps
and similar devices having means to feed the electrodes together as
they are consumed) where the structure includes at least
two cathodes each having a separate anode, subclass 31
for polyphase A. C. type consumable electrode
type devices, subclass 33 where the consumable electrode
discharge device is provided with three or more series connected electrodes, and
subclasses 36+ for the consumable electrode discharge devices
which have a plurality of cathodes or a plurality of anodes. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 5.16+ , 5.27, 5.28, and
5.39+ for cathode-ray tube circuits including
a plurality of hollow distributed parameter devices such as a wave
guide, cavity resonator, or co-axial
line through or in which the ray passes; and subclasses 34
to 63 for discharge devices which have three or more electrodes
and which have structurally combined therewith a circuit element
such as an electric switch or an impedance. |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclass 124 and 134 for X-ray devices which have
a plurality of cathodes or anodes. |
|
| | |
| 307 | Four or more electrodes: |
| | This subclass is indented under subclass 306. Discharge devices which have four or more electrodes.
| | (1)
Note. In some of the discharge devices in this subclass, one
or more of the electrodes are intended to be used merely as discharge
control electrodes. |
| | (2)
Note. This is a residual subclass and provides only
for discharge devices having four or more electrodes which are not
provided for in the subclasses above. The search should
include the subclasses above which provide for special types of discharge
devices where a specific type of discharge device is involved.
For example, secondary emissive discharge devices (e.g., electron
multipliers) having four or more electrodes are classified in
subclasses 103+ above and not cross-referenced
to this subclass. Where the discharge device is provided
for in some general subclass above, such as subclasses
11+ (with temperature modifier), or
subclasses 238+ (with support and/or spacing
structure for electrode and/or shield), and
is not cross-referenced to a subclass providing for a special
type of discharge device, the patent is cross-referenced
into this subclass. The notes below refer to some of the
subclasses which specifically provide for four or more electrode
discharge devices. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 1+, | for plural unit discharge devices which have at
least two cathodes and an anode for each cathode. |
| 103+, | and the subclasses specified in the notes thereto, for
discharge devices of the secondary emitter type (e.g., electron
multiplier) which have four or more electrodes. |
| 238+, | for discharge devices which include supporting and/or
spacing structure for three or more electrodes. If structure
in addition to the electrode supporting and/or spacing
structure is disclosed or is claimed, the patent is cross-referenced
to this subclass where the discharge device has four or more electrodes
if it is not specifically provided for in a subclass other than subclasses
238+ which precedes this subclass. |
| 293, | for discharge devices which have an apertured or
grid-like electrode interposed in the discharge space between a
cathode and another electrode (e.g., anode), a
fourth electrode being located outside of the discharge space (e.g., a
shield grid around a cylindrical anode). |
| 296+, | for discharge devices which have four or more electrodes, at
least two of the electrodes being apertured or grid-like electrodes
which are interposed in the inter-electrode space defined
by other electrodes. |
| 364+, | for cathode-ray tube having four or more
electrodes. |
| 581, | where the discharge device has an envelope which
contains a gas or vapor. |
SEE OR SEARCH CLASS:
| 314, | Electric Lamp and Discharge Devices: Consumable
Electrodes,
subclass 7 for consumable electrode discharge devices (e.g., arc
lamps and similar devices having means to feed the electrodes together
as they are consumed) where the structure includes at least
two cathodes each having a separate anode; subclass 33 where
the consumable electrode discharge device is provided with four
or more series connected electrodes and subclasses 36+ where
the consumable electrode discharge device has a plurality of cathodes
or a plurality of anodes and has four or more electrodes. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 34 through 63for discharge devices which have four or more electrodes and
which have structurally combined therewith a circuit element such
as an electric switch or an impedance. |
|
| | |
| 308 | Discharge control electrode: |
| | This subclass is indented under subclass 306. Discharge devices which have a discharge control electrode.
| | (1)
Note. This is the residual subclass providing for
discharge devices having three electrodes, one of the electrodes
being designated as a control electrode. As pointed out
in the glossary, a control electrode is an electrode designed
to influence or control the discharge current flowing between other
electrodes. Accordingly, whether or not an electrode is
a control electrode will depend upon the system which is used with
the discharge device. The search should include the subclasses
above which provide for special types of discharge devices where
a specific type of discharge device is involved. For example, secondary
emissive discharge devices (e.g., electron
multipliers) having a control electrode are classified
in subclasses 103+ above. Where the control electrode
is an apertured or grid-like electrode interposed in the
discharge space between two other electrodes, the patent is
classified in subclasses 293+ above. Where the
discharge device is provided for in some general subclass above, such as
subclasses 11+ (with temperature modifier), or
subclasses 238+ (with support and/or
spacing structure for electrode and/or shield), and
is not cross-referenced to a subclass providing for a special
type of discharge device, the patent is cross-referenced
into this subclass. The notes below refer to some of the subclasses
which specifically provide for four or more electrode discharge devices. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 5+, | for plural unit discharge devices (e.g., discharge
devices having at least two cathodes and an anode for each cathode) at
least one of the discharge devices having a control electrode. |
| 153+, | for discharge devices having a control electrode
and also a magnetic device for influencing the space discharge. |
| 166, | 167 and 170+, for liquid electrode
discharge devices which are provided with a control electrode.
See subclass 166 where the control electrode is external of the
envelope of the device; 167, where the control
electrode is an apertured or grid-like electrode interposed
between the cathode and anode and 170+, where
the control electrode is an auxiliary starting or holding electrode. |
| 234, | where the control electrode is exterior to the envelope
of the discharge device. |
| 243+, | for discharge devices having significant supporting
and/or spacing structure for a plurality of electrodes, one of
which is a control electrode. If structure in addition
to the electrode supporting and/or spacing structure is disclosed
or claimed, the patent is cross-referenced to
this subclass where the discharge device has a control electrode
unless the device is specifically provided for in a subclass other
than subclasses 243+ which precedes this subclass. |
| 293+, | where the control electrode is an apertured or grid-like
electrode interposed in the discharge space defined by two other
electrodes. |
| 307, | where the discharge device has four or more electrodes, one
of which is a control electrode. |
| 447, | and the subclasses specified in the notes thereto
for cathode-ray tubes which have a control electrode. |
| 537, | for photosensitive discharge devices which have
a control electrode. |
| 581, | where the discharge device has an envelope containing
an atmosphere of gas or vapor and a control electrode. |
|
| | |
| 309 | DISCHARGE DEVICES HAVING A MULTIPOINTED OR SERRATED EDGE ELECTRODE: |
| | This subclass is indented under the class definition. Discharge devices having an electrode which has a plurality
of pointed needle-like portions or which has a serrated
edge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 140, | for this subject matter in spark plugs. |
| 351, | for the structure of multipointed or serrated edge
electrodes, per se. |
|
| | |
| 310 | DISCHARGE DEVICES HAVING A THERMIONIC OR EMISSIVE CATHODE: |
| | This subclass is indented under the class definition. Discharge devices which have a thermionic or emissive cathode.
| | (1)
Note. This subclass is the residual subclass providing
for discharge devices which have thermionic or emissive cathodes
which are not provided for in the above subclasses. This
subclass does not contain cross-references of devices classified
in the preceding subclasses where the sole novelty in the cathode
is in the structure or the cathode. For such cross-references, see
subclasses 337+ where the cathode is an indirectly heated
cathode, 341+, where the cathode is a
filament or resistance heated electrode, 346 for cathodes
which contain or are coated with electron emissive material.
This subclass does not contain cross-references of devices
classified in the preceding subclasses where the sole novelty in the
cathode is the composition of the cathode. For such cross-references, see the
classes referred to in the class definition. Neither does
this subclass contain cross-references to patents where
the sole novelty is in the supporting and/or spacing structure
for either the cathode or the cathode and the other electrodes. The
search should include the subclasses above which provide for special
types of discharge devices where a specific type of discharge device
is involved. For example, cathode-ray
tubes with thermionic or emissive cathodes are classified in subclasses
364+ above. Where the discharge device is provided
for in some general subclass, such as subclasses 11+ (with
temperature modifier) and structure of the cathode is claimed
in addition to that provided for in either the general or specific
subclasses preceding this subclass, the patent is cross-referenced
into this subclass. See the search notes below for a reference
to some of the subclasses which provide for discharge devices having
a thermionic or emissive cathode. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 1+, | for plural unit discharge devices which have at
least two cathodes and at least one anode for each cathode. |
| 16, | for discharge devices which have a liquid electrode
and an electric heater for the liquid electrode. |
| 37+, | where the cathode is provided with means other than
the mere filament or heater for modifying the temperature of the
cathode (e.g., a heat shield). |
| 103+, | for secondary emitter discharge devices (e.g., electron
multiplier) which have emissive cathodes. |
| 163+, | for discharge devices which have a liquid (e.g., mercury
cathode) 616, 627+ and 630 for discharge
devices which contain a gas or vapor and which have a thermionic
or emissive cathode. See subclass 616 where the device
is provided with means to shield the cathode from positive ion bombardment, subclasses
627+ where the device has a heated or thermionic cathode, and
subclass 630 for the miscellaneous gas or vapor discharge devices
with emissive cathodes. |
| 233, | for discharge devices which are defined by the degree
of vacuum and which include a thermionic or emissive cathode. |
| 244+, | for discharge devices which are provided with means
for supporting and/or spacing a plurality of electrodes, one
of which may be a thermionic or emissive cathode. See (1) Note above. |
| 270, | for discharge devices which are provided with means
for supporting and/or spacing an indirectly heated cathode.
See (1) Note above. |
| 271, | for devices having means for supporting and/or
spacing a filament. See (1) Note above. |
| 293+, | for discharge devices which have a thermionic or
emissive cathode and other electrode and an apertured or grid-like
electrode interposed between the cathode and the other electrode. See
subclass 302 where the discharge device has a plurality of cathodes
and subclass 304 where the discharge device is provided with a plural
section cathode having the cathode wires parallel to each other. |
| 305, | for discharge devices which have a cathode and other
electrode which is designed to be used as an anode with respect
to the first cathode and to be heated by the electron bombardment from
the first cathode, the electrode having another surface
which when heated emits electrons to a third electrode, (e.g., cathanode
type discharge device). |
| 315+, | for incandescent lamps which have a filament or
glower. |
| 337+, | see (1) Note, above. |
| 341+, | see (1) Note, above. |
| 346, | see (1) Note, above. |
| 364+, | for cathode-ray tubes which have a thermionic
or emissive cathode. See subclass 409 where the cathode-ray tube
has a plurality of cathodes. |
| 523+, | for photosensitive devices which have an emissive
cathode. |
SEE OR SEARCH CLASS:
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclasses 121+ for X-ray tubes which have a thermionic
or emissive cathode. |
|
| | |
| 311 | DISCHARGE DEVICES HAVING AN ELECTRODE OF PARTICULAR MATERIAL: |
| | This subclass is indented under the class definition. Discharge devices which have an electrode defined by the
composition of which it is composed.
| | (1)
Note. This subclass provides only for patents for
discharge devices but which specify that the device has an electrode formed
of a particular composition or material. Electrode composition
and materials are classified in Class 252, Compositions, subclasses
500+ or in one of the related classes as pointed out in the
class definition. Consequently, patents disclosing
electrode compositions and materials for discharge devices are not
cross-referenced into this subclass solely for the composition
or material, but are cross-referenced in one of
the classes specified in the class definitions. However, this
subclass does contain some cross-references of patents where
the electrode is specified as being made of some well known material, such as
brass or zinc which is novel in its relationship in the discharge
device although the composition, per se, is not
new. This subclass is restricted to disclosures where
there is some significance in the use of the particular material
or composition in a discharge device. |
| | (2)
Note. This subclass includes patents either as originals
or cross-references for discharge devices which specify
that one electrode is composed of a specified composition or material
and another electrode is composed of a specified composition or
material and another electrode is composed of a different composition. |
| | (3)
Note. The composition or material may be a coating
upon the electrode. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 54, | where the electrode includes a radio active material. |
| 103+, | where the electrode includes a material which emits
secondary electrons when bombarded by primary electrons. |
| 107, | where the electrode includes a material which does
not emit secondary electrons when bombarded by primary electrons. |
| 150, | and 163+, where the electrode
is a liquid electrode (e.g., mercury). |
| 230, | and 359.1+for discharge devices
having an evacuated envelope and an electrode which will emit positive ions. |
| 483+, | where the electrode includes a fluorescent or phosphorescent
material. |
| 523+, | where the electrode includes a photo-sensitive
material. |
| 559, | where the electrode includes a getter material or
a material designed to generate a gas or vapor within the envelope
of the device. |
| 561, | where the device has an envelope which contains
a getter or a gas or vapor generating material which is defined
by its composition and also has an electrode defined by its composition. |
| 627+, | and 630, where the device has an envelope
containing a gas or vapor and an electron emissive cathode.
See subclasses 627+ where the cathode is a heated or thermionic
cathode. |
| 633, | where the device is provided with an envelope containing
a gas or vapor and has an electrode defined by the composition or
material of which it is composed. |
SEE OR SEARCH CLASS:
| 252, | Compositions, see (1) Note, above. |
|
| | |
| 312 | WITH CASING OF JACKET FOR ENVELOPE: |
| | This subclass is indented under the class definition. Devices having envelopes and having a separable casing or
jacket surrounding the envelope or a portion thereof.
| | (1)
Note. This subclass is the residual subclass providing
for lamps and discharge devices which have an envelope and a separable
casing or jacket surrounding the envelope or a portion thereof and which
are not provided for in specific subclasses above. This
subclass contains cross-references of lamps and discharge devices
classified in the preceding subclasses which do not specifically
provide for the combination of a lamp or discharge device with an
envelope having a casing therefor. The structures of envelopes
in combination with a casing therefor are classified in other classes
as set forth in the class definition. Accordingly the
cross-references are placed in this subclass of lamps and
discharge devices which have envelopes and a casing therefor only
when there is some significance in the fact that the device enclosed within
the envelope is a lamp or discharge device. To complete
the search for this subject matter the specific subclasses referred
to in the notes below must be searched. |
| | (2)
Note. This subclass does not provide for lamps or
discharge devices which have an integral double wall envelope.
For this excluded subject matter see subclasses 317+ below. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 17+, | where the lamp or discharge device is provided with
an envelope and has a casing or jacket for the envelope, the space
between the casing and the envelope being designed to contain either
a heat transfer medium, a heat insulating medium or to
be evacuated. |
| 317+, | for envelopes which have double spaced walls.
See (2) Note, above. |
| 324, | for devices under the class definition which do
not have an envelope but which are provided with a casing or jacket
which is not gas tight and which wholly or partially surrounds the
device. |
|
| | |
| 313 | WITH ELECTRICAL SHIELD OR STATIC CHARGE DISTRIBUTION MEANS: |
| | This subclass is indented under the class definition. Devices provided with electrical shielding means or with
means for distributing the static charges which accumulate upon
the parts of the device or for the prevention of the accumulation
of static charges upon parts of the device or for preventing undesired
electric space discharges, such as arcs, between
the parts of the device.
| | (1)
Note. For a definition of shield, see the glossary. |
| | (2)
Note. This subclass includes devices provided with
means to prevent the accumulation of undesired static discharges
upon the envelope of the device. This subclass also includes
devices provided with means to prevent electric space discharges
between the lead wires for the electrodes of the device. |
| | (3)
Note. This is the residual subclass and provides
for all lamp and discharge devices which are not specifically provided
for in the preceding subclasses which have an electrical shield
or a static charge distribution means combined therewith.
Accordingly, cross-references have been placed
in this subclass of patents classified in the preceding subclasses
of lamps and discharge devices having an electrical shield or static charge
distribution means excepting in the case where such patent is classified in
a specific subclass preceding this subclass which provides for such
subject matter. A complete field of search for this subject
matter will therefore include the subclasses set forth in the notes below. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 11+, | where the shield is a heated shield or is provided
with means for modifying the temperature of the shield (having
a heat radiating surface), see indented subclass
33 for devices having an envelope and an internal temperature modifying
baffle, and subclass 38 for devices having a heat shield
for the filament or heated cathode. |
| 134, | for spark plugs having an electrical shield (e.g., radio
shielding). |
| 168, | for liquid electrode discharge devices (e.g., mercury) which
have the anodes shielded from each other by being placed in separate
chambers of the envelope. |
| 169, | for liquid electrode discharge devices having a
plurality of anodes with one or more anode arc shields. |
| 590, | 592, 597+, 608, 609+, 614, 616, and 626, where
the device includes an envelope containing a gas or vapor. Where
the device is a discharge device having three or more electrodes
see subclasses 590, 592 and 597+. See
subclass 590 where a shield is interposed between two of the electrodes
to prevent a discharge therebetween, subclass 592 where there
is a hollow shield which surrounds at least a part of the discharge path
and which has an apertured or grid-like electrode within
the shield and subclasses 597+ where an apertured or grid-like
electrode (e.g., shield electrode) is
interposed between two other electrodes. See subclass
608 where a discharge device has particulate material between the discharge
electrodes, subclasses 609+ where a discharge
device has a partition, baffle, constricting means
or a portion of the envelope wall interposed in the discharge space
between the electrodes, subclass 614 for discharge devices
provided with an anode shield, subclass 616 for discharge
devices which are provided with a positive ion or cathode shield, and
subclass 626 for lamps and discharge devices which have a shield for
the electrode or an electrode support. |
| 239+, | where the device is provided with significant supporting
and/or spacing structure for the shield. |
| 293+, | for discharge devices which have an apertured or
grid-like electrode (e.g., a
shield electrode) interposed in the discharge space between
two electrodes, see subclass 293, where the discharge
device has in addition a fourth electrode or shield disposed outside
of the discharge space. |
| 326+, | for the structure of shields, per se. |
SEE OR SEARCH CLASS:
| 174, | Electricity: Conductors and Insulators,
subclasses 140+ for insulators provided with conductive means
to modify the electrical characteristics of the insulator, including
arcing horns, means for preventing the concentration of
electrical stresses, means for modifying surface resistance, and grading
means for modifying the voltage gradient; and subclasses
350-397 for miscellaneous electrical shields or screens, per
se, and for envelopes, boxes, and housings
which are of general utility (including those similar to those
used for electric lamps and discharge devices) which are
provided with or include as a part thereof an electromagnetic or
electrostatic shielding means. |
| 315, | Electric Lamp and Discharge Devices: Systems,
subclass 32 for electric lamps and space discharge devices
which have a condenser, inductance or other circuit element structurally
combined therewith so as to form a unitary device. Electric lamps
and discharge devices which are provided with a condenser or other circuit
impedance to modify the distribution of electrostatic charges upon the
parts of the lamp or discharge device are in Class 315, subclasses 32+.
Note indented subclasses 58+ of Class 315 and the subclasses
specified in the notes to the definition of those subclasses where
a discharge device is structurally combined with a condenser or
other circuit impedance, and subclass 85 for electrical
systems for electric lamps and electric space discharge devices
having shielding means for part of the system to prevent radiation
of electromagnetic waves from and/or to the system or some
part thereof. |
| 378, | X-Ray or Gamma Ray Systems or Devices,
subclass 139 for X-ray discharge devices having electrostatic field
stress distributing means for increasing the impedance of the dielectric
paths between the electrodes and subclass 143 for X-ray tubes
having means for absorbing the secondary X-ray radiation. |
|
| | |
| 314 | NONREPAIRABLE: |
| | This subclass is indented under the class definition. Devices which are provided with means for preventing the
repair of the device.
| | (1)
Note. Some of the devices in this subclass are provided
with means to cause the envelope of the device to shatter when an
attempt is made to open the envelope for the purpose of repairing
or replacing the filament or other electrode. Other of
the devices are provided with means to prevent the filament or other electrode
from being attached to the lead wires. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 236, | for devices within the class definition which are
provided with a spare or extra electrode which is to be substituted
for a defective electrode. |
| 237, | for devices within the class definition which have
an envelope and parts which are especially designed so that the
device may be disassembled to repair an electrode or another part
of the device and for devices within the class definition which
are provided with means for replacing a defective electrode. |
SEE OR SEARCH CLASS:
| 220, | Receptacles,
subclasses 2.1+ , for envelopes, per se, for
lamps and discharge devices. |
|
| | |
| 315 | INCANDESCENT LAMPS: |
| | This subclass is indented under the class definition. Lamps which are provided with a glower or filament adapted
to be heated to incandescence by the passage of an electric current therethrough.
| | (1)
Note. The glower or filament may be but need not
be contained within an enclosing envelope. |
| | (2)
Note. This is residual subclass and provides only
for incandescent lamps which are not specifically provided for in
the subclasses above. Where the incandescent lamp is provided
for in some general subclass above such as subclasses 11+ (with
temperature modifier), and is not cross-referenced
to a subclass specifically providing for incandescent lamps and
structure of the lamp is claimed in addition to that provided for
in either the general or specific subclass, the patent
is cross-referenced into this subclass. The notes
below refer to subclasses above which specifically provide for incandescent
lamps. |
| | (3)
Note. Where the only significant lamp structure
recited is the envelope, or the envelope and the base for
the envelope, the filament or light emitting body being recited
broadly or by name only, and where there is no relationship
recited between the filament or the light emitting body and the
envelope except that the filament or body is within the envelope, the
patent is classified in subclasses 317+. For
example, a claim directed to a particular shaped envelope
which states merely that there is a filament or light emitting body
within the envelope is classified in subclass 317. A claim which
includes an envelope, either broadly or specifically recited, and
a base and which state merely that the envelope contains a filament
or light emitting body is classified in subclasses 318.01+. |
| | (4)
Note. Where the only significant lamp structure
recited is the structure of the filament or glower with or without
a lead wire or connector, the claim merely stating that
the filament or glower is within or a part of an incandescent lamp, the patent
is classified in subclasses 326+, especially in
subclasses 341+. For example, a claim
which recites an incandescent lamp provided with a filament of a
particular structure without stating any other relationship of the
filament to the other parts of the lamp is classified in subclasses
326+. Where the patent claims an envelope having
a filament or glower being defined by either its structure or by
its composition, the patent is classified in this subclass (315). |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 1+, | for plural unit devices under the class definition
which include at least one incandescent lamp unit and a discharge
device unit. Note that incandescent lamps having only
plural filaments or glowers are not classified in subclasses 1+ but
are in indented subclass 316. |
| 9, | for incandescent lamps which include a filament
or glower and a separate body, not an electrode, which
is designed to be heated to incandescence by the filament or glower. |
| 110+, | for incandescent lamps which have integrally combined
therewith an optical device or which have the envelope made of a
material which transmits a particular portion of the spectrum (e.g., ultraviolet
light). See subclass 112 where the optical device
is a polarizer, a filter or where the envelope is special
ray transmissive. See subclasses 113+ where the
optical device is a reflector; subclass 116 where the optical
device is a light diffusing means and subclass 117 where the optical
device is a light valve or light obscuring means. |
| 235, | for incandescent lamps which include two electrodes
which are maintained in imperfect contact, the lamps being designed
so that the passage of electric current from one electrode to the other
produces light adjacent the ends of the electrodes which are in
contact with each other. |
| 271+, | for incandescent lamps having supporting and/or
spacing structure for the filament or glower. Where the only
significant lamp structure recited is the supporting and/or
spacing structure for the filament or glower either with or without
the enclosing envelope, the patent is classified in subclasses
271+ of this class. Where the structure is disclosed
or claimed in addition to the filament or glower supporting and/or
spacing structure, the patent is classified in subclasses
271+ and cross-referenced to this or the indented
subclass. |
| 313, | for incandescent lamps provided with means for preventing
the accumulation of static charges upon parts of the lamp or for
preventing undesired arc or other discharges between the parts of
the lamp. |
| 314, | for incandescent lamps which are provided with means
which prevents repair of the incandescent lamp. |
| 331+, | for the structure of lamp filaments and glowers
which have combined therewith a lead wire or connector. See (4) Note
above. |
| 341+, | for the structure of filaments and glowers.
See (4) Note above. |
| 549+, | where the incandescent lamp has an envelope which
contains a getter, a gas or vapor generating material or
is provided with means for regulating the pressure within the envelope. |
| 578+, | where the incandescent lamp has an envelope which
contains a gas or vapor. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 32+ especially subclasses 32, 46+, 49, 51+, and
64 through 74 for incandescent lamps which have structurally combined
therewith a circuit element such as an electric switch or an impedance.
See subclasses 46+ for the structural combination of an incandescent
lamp and a discharge device where the lamp filament is connected
in shunt relation to the discharge electrode, subclass
49 for the structural combination of an incandescent lamp and a
discharge device where the lamp filament is connected in series
with the discharge device. See subclasses 51+ where
the incandescent lamp has a plurality of circuit elements combined
therewith. |
|
| | |
| 316 | Plural filaments or glowers: |
| | This subclass is indented under subclass 315. Lamps which are provided with a plurality of filaments or
glowers, the filaments or glowers being provided with separate
terminals so that the filaments or glowers are adapted to be independently
energized.
| | (1)
Note. One terminal may have a plurality of filaments
or glowers connected to it, the filaments or glowers being
provided with separate terminals for the other ends of the filaments
or glowers so that they may be independently energized. |
| | (2)
Note. See notes (2) to (4) in
the definition of subclass 315 with respect to the classification
of multiple filament lamps in the subclasses which precede subclass 315
and this indented subclass. |
SEE OR SEARCH THIS CLASS, SUBCLASS:
| 115, | where the lamp has a reflector integrally combined
therewith. |
| 236, | for multiple filament electric lamps which are provided
with means, other than the mere terminals of the lamp, so
that one of the filaments or glowers may be used to the exclusion
of the other, the means being capable of selecting either
of the filaments or glowers for use. |
| 272, | for lamps which including significant supporting
and/or spacing structure for a plurality of filaments or
glowers. Where the only significant lamp structure claimed
is the supporting and/or spacing structure for the filaments
or glowers, either with or without the enclosing envelope, the
patent is classified in subclass 272. Where structure
is disclosed or claimed in addition to the supporting and/or spacing
structure for the filaments or glowers, the patent is classified
in subclass 272 and cross-referenced to this subclass. |
SEE OR SEARCH CLASS:
| 315, | Electric Lamp and Discharge Devices: Systems,
subclasses 64+ where the lamp has structurally combined therewith
a circuit element such as an electric switch or impedance. Note
that indented subclass 65 has multiple filament or glower lamps which
include switch means in the lamp to energize one filament when another
filament fails to operate properly. |
|
| | |
| 317 | WITH ENVELOPE: |
| | This subclass is indented under the class definition. Devices provided with an envelope which encloses the electrodes
of the device.
| | (1)
Note. This subclass provides only for lamps and
discharge devices which are provided with an envelope when there
is some significance in the use of the envelope in a lamp or discharge
device. Also, included are lamps and discharge devices
which are provided with a specific envelope where the claims state
that the envelope contains one or more electrodes of a discharge
device, a lamp filament, or other structure sufficient
to exclude the patent from the classes which provide for the envelope
and envelopes with bases, per se. Envelopes, per
se, for lamps and discharge devices are classified in Class
220, Receptacles, subclasses 2.1+, or
Class 174, Electricity: Conductors and Insulators
if claimed in combination with the lead-in structure, or
in Class 439, Electrical Connectors, if claimed
in combination with electrical connector structure as pointed out
in the class definition. See the class definition for
the line between Class 313 and the other classes with respect to
the subject matter provided for in this subclass. Consequently, patents disclosing
envelopes for electric lamps and discharge devices are not cross-referenced
into this subclass solely for the envelope structure of for the
structure of the envelope and its base (electrical connector), but
are cross-referenced in one of th | |
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CLASS 313,