U.S. PATENT AND TRADEMARK OFFICE
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U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
Patents classified in a subclass may be accessed by either clicking on
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(definitions have been obtained from the
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is produced by the U.S. Patent and Trademark Office
Electronic Products Branch)
Class 361
ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES
Class Definition:
STATEMENT OF GENERAL SUBJECT MATTER OF CLASS
This is the residual class for:
A. Systems or devices which provide safety and protection
for other systems and devices.
B. Control circuits for electromagnetic devices.
C. Control circuits for nonelectromagnetic-type relays.
D. Systems or devices which discharge, or prevent the
accumulation of electrical charge on or in an object or
material.
E. Circuits for charging objects or materials.
F. Systems for generating or conducting an electric charge.
G. Systems which process electrical speed signals.
H. Circuits for reversing the polarity of an electric
circuit.
I. Systems which cause the ignition of a fuel or an
explosive charge.
J. Systems and processes for demagnetizing a magnetic
field.
K. Transformers and inductors with integral switch,
capacitor or lock.
L. Electrostatic capacitors, per se.
M. Housings and mounting assemblies with plural diverse
electrical components.
N. Electrolytic systems and devices.
O. Miscellaneous electrical systems and devices, which are
not generic to any other class and are not provided for in
any other subclass of this class.
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
Many other electrical and mechanical classes provide for
systems or machines which include the electrical systems and
devices provided for in this class (361). The combination of
the subject matter of this class (361) and an art environment
is generally classified with the art environment where that
environment is significant, either by virtue of a significant
disclosed relationship or by virtue of a claimed
relationship. Where the art environment is recited by name
only (e.g., motor protective circuit), the combination may be
classified, in some instances, with the art environment, and
in others, in this class (361).
Whereas housings for electronic devices and components are
also provided for elsewhere, Class 361 provides for housings
and mounting assemblies having more than one different type
of electrical component, the electrical components normally
do not recite significant art limitations. (See Subclass
References to the Current Class and References to Other
Classes, below.)
Housings wherein (1) the housing is for an active solid state
device, details of which are positively recited in the
claims, or (2) where the recited housing is necessary to make
a usable active solid state device whether or not the active
solid state device is recited nominally or in detail are
provided for elsewhere. (See References to Other Classes,
below.)
However, if a housing with nominally recited active solid
state devices recites different types of (active or passive)
devices, then original (OR) classification is in Class 361.
Claims that recite housings with only nominal recitation of
active solid state devices of only one type should be
classified as originals (ORs) in neither Class 257 or Class
361, but rather in Class 174.
SEE OR SEARCH THIS CLASS, SUBCLASS:
331 for housings and mounting assemblies having more than
one different type of electrical component; the electrical
components normally do not recite significant art
limitations. These subclasses also provide for combinations
of housings and mounting assembles with different types of
art wherein the combination is not provided for where the
different art is classified.
335 for housings and switch gear.
364 for housings and meter structure.
381 for housings with cooling means.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
29, Metal Working, appropriate subclasses for miscellaneous
methods of manufacturing or mounting electrical or magnetic
devices.
36, Boots, Shoes, and Leggings, for necessary shoe
structure.
43, Fishing, Trapping, and Vermin Destroying, 98 for
electrocuting-type animal traps, and subclasses 112 for
devices for electrocuting insects.
47, Plant Husbandry, subclass 1.3 for the growing of plants
as affected by electricity, as, for example, to stimulate the
growth or to kill the plants.
70, Locks, for locking means, per se. Note, especially 174
for locking means for control and machine elements;
subclasses 237+ for locking means for automobile vehicles.
73, Measuring and Testing, 304 for capacitive liquid level
gauges; subclasses 718 and 724 for capacitive fluid pressure
gauge; subclasses 488+ for speed or accelerating measuring.
74, Machine Element or Mechanism, 10 for the combination of
a capacitor and a dial shaft operator; subclasses 395+ for
systems for synchronizing the rotary motion of a plurality of
shafts where adjustable gearing is utilized to control the
rotation of at least one of the shafts.
84, Music, 723 for electrical musical instruments, such as
electric organs and conventional musical instruments with
electrical pick-up, amplifying and reproducing means.
89, Ordnance, appropriate subclasses for explosive device
projecting or dropping means having igniting means as a part
thereof.
91, Motors: Expansible Chamber Type, appropriate subclasses
and especially subclass 171 for synchronizing plural
expansible chamber motors.
96, Gas Separation: Apparatus, 15 for electrostatic-type
precipitators.
102, Ammunition and Explosives, appropriate subclasses for
explosive devices having igniting means as a portion
thereof.
106, Compositions: Coating or Plastic, 1.05 for metalizing
compositions, per se.
114, Ships, subclass 240 for degaussing of ships.
116, Signals and Indicators, subclass 38 for vehicular
governors indicating speed and direction; subclasses 241+ and
284+ for miscellaneous indicators for indicating the position
of a variable capacitor.
118, Coating Apparatus, 621 for electrostatic spray
devices.
119, Animal Husbandry, subclass 145 for electrified station
shields.
123, Internal-Combustion Engines, 143 for igniting systems
utilized with internal combustion engines; subclasses 319+
for speed regulators.
126, Stoves and Furnaces, appropriate subclasses for solid
fuel burners having igniting means.
136, Batteries: Thermoelectric and Photoelectric, for
electrochemical and electrothermal sources of electricity.
165, Heat Exchange, appropriate subclasses for a heat
exchange structure of a general nature.
174, Electricity: Conductors and Insulators, for electric
conductor and insulator structure, including conduits, boxes
and housings.
177, Weighing Scales, 210 for capacitor gauges.
178, Telegraphy, for the reproduction of pictures by a
scanning procedure, as in television, facsimile and
photomechanical engraving and for telegraphy, as in
telautograph and teletypewriting.
180, Motor Vehicles, appropriate subclasses and see Class
361, subclass 51, search notes.
200, Electricity: Circuit Makers and Breakers, for switches
and circuit breakers.
204, Chemistry: Electrical and Wave Energy, for the
producing of chemical change by means of electricity, as in
electrosputtering.
205, Electrolysis: Processes, Compositions Used Therein, and
Methods of Preparing the Compositions, for the producing of
chemical change by means of electricity, as in electrolytic
coating.
209, Classifying, Separating, and Assorting Solids, for
electrical classifying, separating and assorting of materials
and objects.
211, Supports: Racks, 41.1 for frame structure designed to
support plates or plate-like articles.
219, Electric Heating, for miscellaneous electrical heating,
including welding. Note, subclass 384 for perforating sheet
material by means of an electric spark.
221, Article Dispensing, 143 for article dispensers having
electrical igniting means.
222, Dispensing, for dispensing devices utilizing
electromagnetic actuators.
231, Whips and Whip Apparatus, subclass 7 for a device
consisting of a handle and an electrified goad for causing an
electric shock to be produced in an animal to control the
movement or behavior of the animal.
235, Registers, 61 for calculators having relay-type
counting chains.
236, Automatic Temperature and Humidity Regulation,
appropriate subclasses for automatic temperature control
systems; appropriate subclasses for complete heating systems
having igniters as a portion thereof.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 2.1,
3, and 690+ respectively, for methods and apparatus for
projecting a liquid into the air and including a provision
for imparting an electrostatic charge to the projected
liquid. See the notes to these subclasses for a statement of
the line.
244, Aeronautics, subclass 1 for aircraft lightning
arresters and static eliminators.
246, Railway Switches and Signals, appropriate subclasses for
electrical control of railway switches and signals.
250, Radiant Energy, for radio and microwave absorption
meters, the detection of the nuclear or electromagnetic
energy, the testing of materials by nuclear or
electromagnetic energy, mass spectroscopy, fluorescent and
phosphorescent applications, electron or ion beam deflection
or focusing ion generation, supports for fluent material or
objects, the irradiation of material or objects, nuclear and
electromagnetic radiation detectors, radiant energy
generators and sources, radiation controlling means, and
radiation source and detector supports.
252, Compositions, 512 for electrically conductive
metal-containing compositions; subclass 567 for a web or
sheet impregnated with a defined dielectric liquid; and
subclasses 570+ for a fluent dielectric, per se.
256, Fences, subclass 10 for electric fences.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), appropriate subclasses for active
solid-state semiconductor devices, per se. Class 257 provides
for housings wherein (1) the housing is for an active solid
state device, details of which are positively recited in the
claims, or (2) where the recited housing is necessary to make
a usable active solid state device whether or not the active
solid state device is recited nominally or in detail. (Lines
With Other Classes and Within This Class, above.)
290, Prime-Mover Dynamo Plants, for electric generating
plants.
303, Fluid-Pressure and Analogous Brake System, 113.1 for
antiskid systems where brakes are operated.
307, Electrical Transmission or Interconnection Systems, for
systems of distributing electricity or interconnection. The
line between Class 307 and this class (361) can be determined
only by consulting the art to be found in these two classes.
310, Electrical Generator or Motor Structure, subclass 90.5
for magnetic supports.
312, Supports: Cabinet Structure, 294 for supports and
cabinets with movable components.
313, Electric Lamp and Discharge Devices, for electric lamps,
vacuum tubes, gas discharge tubes and spark gaps.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, for arc lamps.
315, Electric Lamp and Discharge Devices: Systems, for
cathode-ray tube circuits, gas tube circuits, electric lamp
circuits, and circuits which are integral with a discharge
device or lamp.
318, Electricity: Motive Power Systems, for electric motor
systems, including servo-motor systems.
320, Electricity: Battery or Capacitor Charging or
Discharging, for a method or apparatus for charging or
discharging a battery or capacitor.
322, Electricity: Single Generator Systems, for systems for
controlling a single generator and its prime mover.
323, Electricity: Power Supply or Regulation Systems, for
systems for controlling the voltage of electricity and the
phase of alternating currents.
324, Electricity: Measuring and Testing, for electrical
measuring, testing and sensing, such as, for example, the
determination of moisture in material by measuring its
resistivity and the measuring of power in an electric
circuit.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for
miscellaneous active device circuits.
329, Demodulators, 311 for pulse demodulators which may
include radiation reduction.
330, Amplifiers, appropriate subclasses for amplifier
systems.
331, Oscillators, appropriate subclasses for self-sustaining
electric wave generators of the nondynamoelectric type.
332, Modulators, for systems for modulating an intelligence
upon a repetitious wave.
333, Wave Transmission Lines and Networks, appropriate
subclasses for the subject matter of that class.
334, Tuners, appropriate subclasses for tuned networks used
in wave energy apparatus, tuners with shielding means, and
switch operated tuners.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, for electromagnets with armatures,
switches or magnetic chuck structure.
336, Inductor Devices, for transformers and inductances.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for thermal-type circuit
breakers, per se.
338, Electrical Resistors, appropriate subclasses for
electrical resistors both of the linear and nonlinear types.
340, Communications: Electrical, appropriate subclasses for
miscellaneous electrical signalling.
343, Communications: Radio Wave, for radar and directive
radio systems and antennas.
352, Optics: Motion Pictures, for motion picture apparatus
combined with sound recording or reproducing apparatus,
including means for synchronizing the two.
362, Illumination, for electric lights and photos:graphic
illumination devices including ignition means.
363, Electric Power Conversion Systems, in which electricity
is converted from one form to another as from direct current
to alternating.
368, Horology: Time Measuring Systems or Devices, subclass
293 for antimagnetic devices used in horology.
369, Dynamic Information Storage or Retrieval, 72 for
storage medium electrostatic charge neutralization; and
subclass 126 for information storage by dynamic electrostatic
charge.
375, Pulse or Digital Communications, for pulse communication
equipment.
376, Induced Nuclear Reactions: Processes, Systems, and
Elements, 100 for processes and devices for electrically
and/or magnetically confining and controlling a plasma to
yield nuclear fusion reactions.
378, X-Ray or Gamma Ray Systems or Devices.
379, Telephonic Communications, for telephone systems and
subcombinations.
396, Photography, 155 for photoflash devices combined with
camera structure which may include ignition means.
399, Electrophotography, subclass 37 for diagnostics of
power supplied to an electrophotos:graphic device, subclasses
88+ for machine operations with power supply, and subclasses
168+ for charging a photoconductive member.
416, Fluid Reaction Surfaces (i.e., Impellers), appropriate
subclasses for centrifugal or impeller rotation speed
responsive systems.
420, Alloys or Metallic Compositions, for alloys, per se.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, subclass 21, 22+,
and 186 for process and apparatus provided by the class using
electrical energy.
427, Coating Processes, 458 for processes of coating, per
se, utilizing an electrostatic charge; subclasses 79+ for
processes of coating utilized in making capacitors.
431, Combustion, subclass 128 for hand manipulatable
electric igniters for igniting fuel.
439, Electrical Connectors, for electrical connectors.
454, Ventilation, appropriate subclasses for ventilating
devices.
455, Telecommunications, for receivers, transmitters and
miscellaneous apparatus.
463, Amusement Devices: Games, subclass 47.3 for a striking
type of weapon for use on a human being which includes an
electric shock feature (e.g., an electric prod used by
police, etc.).
505, Superconductor Technology: Apparatus, Material,
Process, 150 for high temperature (T[subscrpt]c[end
subscrpt] 30 K) superconducting systems or devices, and
subclasses 800+ for cross-reference art collections on
superconductive systems or devices.
600, Surgery, 9 for application of a magnetic field to a
body for therapy.
602, Surgery: Splint, Brace, or Bandage, subclass 2, for a
bandage including electrical application to a body.
606, Surgery, especially 32, for electrical application to a
body for surgical purposes.
607, Surgery: Light, Thermal, and Electrical Application, 1
for devices for applying electricity to the human body.
SUBCLASSES
Subclass:
1
SAFETY AND PROTECTION OF SYSTEMS AND DEVICES:
This subclass is indented under the class definition.
Subject matter relating to the safety and protection of
electrical systems and devices which include either fault
sensing means which activate a protective means to remove a
fault condition or a protective means which detects and
removes the fault condition.
(1) Note. This and indented subclasses do not include, as a
portion thereof, the protection and safety of human beings in
the vicinity of electrical apparatus. Generally, the
excluded protection and safety systems are classified in the
subclass which relates to the environment in which the
protected human being may be found. Thus, for example,
electrical conductors having grounded guarding means to
protect human personnel are classified as electric
conductors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
600 for switchboards and analogous devices, such as
housings, some of which act as protective means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 2 for
lightning protection systems consisting only of conductors
and insulators, subclass 5 for electric shock hazard
protective devices for protecting personnel, subclass 6 for
earth ground, per se, and subclass 11 for electric conductor
structure having means automatically responsive to the
condition of the fluid which is associated with the electric
conductors.
178, Telegraphy, subclass 69 for telegraph line clearing and
circuit maintenance systems.
307, Electrical Transmission or Interconnection Systems, 326
for safety or limit control features.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, 10 for arc lamp systems having an automatic
shunt or cutout.
315, Electric Lamp and Discharge Devices: Systems, 88,
especially subclass 91 for lamp and space discharge device
systems having means to automatically substitute another
lamp, space discharge devices, or electrode for the previous
one under certain conditions of operation, subclasses 119+
for lamp and space discharge systems having an automatic
shunt or cutout, and subclass 209 for lamp and space
discharge device systems having periodic switch means in the
supply circuit.
318, Electricity: Motive Power Systems, subclass 434 for
electric motor systems where the motor is significantly
claimed having means to limit the motor load current, torque
or force, as for the purpose of limiting an overload.
323, Electricity: Power Supply or Regulation Systems,
subclass 267 for condition sensing regulators with
protection.
324, Electricity: Measuring and Testing, subclass 110 for
electric meter protection against electrical hazards and
against the hazard of fraud.
330, Amplifiers, 250 for semiconductor amplifiers.
331, Oscillators, subclass 62 for oscillators provided with
oscillator circuit protective means, and subclass 63 for
oscillator systems provided with protection or safety devices
for personnel.
340, Communications: Electrical, 635 for electrical
apparatus condition responsive signalling devices,
particularly subclasses 649, 650, and 652 for grounding
circuit, undesired circuit ground, and open circuit,
condition responsive signalling devices, respectively.
363, Electric Power Conversion Systems, 50 for conversion
systems having protective means.
379, Telephonic Communications, subclass 437 for telephone
systems having protective means.
Subclass:
2
Arc suppression at switching point (i.e., includes
solid-state switch):
This subclass is indented under subclass 1. Subject matter
for preventing or extinguishing arcs at the main switching
points of the switching device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
159 for arc suppression in control circuits for
electromagnetic devices.
SEE OR SEARCH CLASS:
218, High-Voltage Switches With Arc Preventing and
Extinguishing Devices, 1 for switches having arc preventing
and extinguishing features.
333, Wave Transmission Lines and Networks, subclass 19 and
20 for differentiating, integrating and wave shaping
networks, some of which can be used to prevent a rapid rise
of voltage when a switching contact is opened.
363, Electric Power Conversion Systems, 106 and 177 for
circuit-interrupter-type conversion systems which are usually
provided with arc suppression or reducing means.
Subclass:
3
Synchronized or sequential opening or closing:
This subclass is indented under subclass 2. Subject matter
with means to open or close the switch at a predetermined
time or in a predetermined sequence.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 238 and 321.
Subclass:
4
Counter electromotive force:
This subclass is indented under subclass 3. Subject matter
with means for inserting an opposing voltage or current
across the switching points to effectively cancel the arc
producing surge.
Subclass:
5
With current sensitive control circuit:
This subclass is indented under subclass 3. Subject matter
wherein the opening or closing control circuit is responsive
to the in-line current. The in-line current is that which is
switched at the main switching point.
SEE OR SEARCH THIS CLASS, SUBCLASS:
31 and 32, for current responsive control circuitry in motor
shunting circuits.
57 for current responsive control circuitry in load shunting
circuits.
63 for current responsive control circuitry in feeder
distribution networks.
87 for current responsive control circuitry in quantity
comparison circuits.
93.1 for current responsive fault sensors.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 131 for current responsive switching systems.
340, Communications: Electrical, subclass 664 for current
characteristic actuated (e.g., line fault).
Subclass:
6
With voltage sensitive control circuit:
This subclass is indented under subclass 3. Subject matter
wherein the opening or closing control circuit is responsive
to the line voltage. The line voltage is that which is
switched at the main switching points.
SEE OR SEARCH THIS CLASS, SUBCLASS:
21 for voltage responsive control circuits in generator
protective systems.
33 for voltage responsive control circuits in motor
protective systems.
56 for voltage responsive control circuits in load shunting
systems.
86 for voltage responsive control circuits in quantity
comparison circuits.
88 for voltage responsive fault sensors.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 130 for voltage responsive switching circuits.
340, Communications: Electrical, 660 for voltage responsive
signalling means.
Subclass:
7
With combined voltage and current sensitive control circuit:
This subclass is indented under subclass 3. Subject matter
wherein the opening or closing control circuit is responsive
to both the in-line current and the line voltage.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 for combined voltage and current sensitive control
circuits in motor protection circuits.
65 for combined voltage and current sensitive control
circuits in feeder distribution networks.
79 for combined voltage and current sensitive control
circuits in quantity comparison circuits.
SEE OR SEARCH CLASS:
322, Electricity: Single Generator Systems, subclass 25 for
voltage and current responsive means for generator control
circuits.
Subclass:
8
Shunt bypass:
This subclass is indented under subclass 3. Subject matter
including a circuit in parallel with the main line switching
points to drain away the arc causing surge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
9 for shunt bypass of main switch with sequentially inserted
impedance.
13 for nonsynchronized shunt bypass.
Subclass:
9
With sequentially inserted impedance:
This subclass is indented under subclass 8. Subject matter
which includes means to increase the shunt impedance in a
predetermined manner.
Subclass:
10
By inserting series impedance:
This subclass is indented under subclass 2. Subject matter
with means to place an impedance in-line with the main
switching points to suppress the arc causing surge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
58 for impedance insertion in general.
SEE OR SEARCH CLASS:
218, High-Voltage Switches With Arc Preventing and
Extinguishing Devices, 1 and 143+ for switches having arc
preventing and extinguishing features with resistance
insertion.
Subclass:
11
Nonlinear impedance:
This subclass is indented under subclass 10. Subject matter
with means to insert a nonlinear impedance (inductors,
capacitors, thermistors, etc.) in series with the main
switching points to suppress the arc causing surge.
Subclass:
12
By arc stretching (e.g., horn gap):
This subclass is indented under subclass 10. Subject matter
wherein the lengthening of the arc effectively inserts an
increasing amount of impedance in series with the switching
points.
SEE OR SEARCH THIS CLASS, SUBCLASS:
137 for this subject matter in high voltage applications.
Subclass:
13
Shunt bypass of main switch:
This subclass is indented under subclass 2. Subject matter
with a current path around the main line switching points to
drain away the arc causing surge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8 for synchronized shunt bypass circuits.
54 for load shunting where the load is not a switch.
SEE OR SEARCH CLASS:
218, High-Voltage Switches With Arc Preventing and
Extinguishing Devices, 8 for arc preventing and
extinguishing with auxiliary shunt.
Subclass:
14
Arc blowout for main breaker contact (e.g., electromagnet,
gas, fluid, etc.):
This subclass is indented under subclass 2. Subject matter
with means to extinguish the arc in a dynamic manner
effectively increasing the length of the path of the arc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
123 133, 134, 135, and 137+, for this subject matter in high
voltage applications.
SEE OR SEARCH CLASS:
218, High-Voltage Switches With Arc Preventing and
Extinguishing Devices, 22 for arc preventing and
extinguishing with magnetic blowout.
Subclass:
15
Capacitor protection:
This subclass is indented under subclass 1. Subject matter
for protecting capacitors from damage caused by excess heat
and voltage or current surges.
(1) Note. The protective systems and devices included in
this subclass are external to the capacitor housing and
details to the capacitor structure are not included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
272 for capacitors, per se, wherein the protective device is
an integral part of the capacitor structure and details to
the capacitor structure are included.
Subclass:
16
Series connected capacitors:
This subclass is indented under subclass 15. Subject matter
for preventing damage to in-line capacitors.
Subclass:
17
Shunt connected capacitors:
This subclass is indented under subclass 15. Subject matter
for preventing damage to capacitors connected in parallel
with the source or load.
SEE OR SEARCH THIS CLASS, SUBCLASS:
272 for electrostatic capacitors with protection or
compensating means.
Subclass:
18
Voltage regulator protective circuits:
This subclass is indented under subclass 1. Subject matter
wherein the fault sensing means for a voltage regulator
system activates a protective means which interrupts the
power to the load.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 276 for voltage regulator systems wherein the
current flow to the load is limited (not interrupted).
Subclass:
19
Superconductor protective circuits:
This subclass is indented under subclass 1. Subject matter
comprising means for electrically preventing damage to a
superconductor circuit or device.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, 366 for superconductor gating
circuits and subclasses 527+ for miscellaneous superconductor
circuits.
505, Superconductor Technology: Apparatus, Material,
Process, particularly 150 for high temperature
(T[subscrpt]c[end subscrpt] 30 K) superconducting systems or
devices, subclass 192 for capacitors having high temperature
superconducting materials, and cross-reference art
collections in subclass 850 for protective circuits for
electromagnetic devices that are superconductive.
Subclass:
20
Generator protective circuits:
This subclass is indented under subclass 1. Subject matter
comprising means for electrically preventing damage to a
generator.
SEE OR SEARCH CLASS:
322, Electricity: Single Generator Systems, for generator
control circuits when the generator is significantly
claimed.
Subclass:
21
Voltage responsive:
This subclass is indented under subclass 20. Subject matter
wherein a fault sensor responds to an abnormal voltage
condition in either the load circuit or the generator field
circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6 for voltage responsive control means in arc suppression
circuits.
33 for voltage responsive control circuits in motor
protective systems.
56 for voltage responsive control circuits in load shunting
systems.
86 for voltage responsive control circuits in quantity
comparison circuits.
88 for voltage responsive fault sensors.
SEE OR SEARCH CLASS:
340, Communications: Electrical, 635 for electrical
apparatus condition responsive signalling device.
Subclass:
22
Compressor protective circuits:
This subclass is indented under subclass 1. Subject matter
comprising means for electrically preventing damage to a
compressor.
SEE OR SEARCH CLASS:
318, Electricity: Motive Power Systems, for general control
circuits when the compressor is significantly claimed.
Subclass:
23
Motor protective condition responsive circuits:
This subclass is indented under subclass 1. Subject matter
including means to sense an abnormal condition or change of
condition of a motor or its circuitry and to remove the fault
condition.
SEE OR SEARCH CLASS:
318, Electricity: Motive Power Systems, for motor control
circuits when the motor is significantly claimed.
340, Communications: Electrical, subclass 648 for a motor
condition responsive signalling device.
Subclass:
24
Current and temperature:
This subclass is indented under subclass 23. Subject matter
wherein the sensing means is responsive to an abnormal
current and temperature condition.
Subclass:
25
Motor temperature:
This subclass is indented under subclass 23. Subject matter
wherein the sensing means is located in the immediate
proximity with the motor and is responsive to an abnormal
temperature condition of the motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37 for related subject matter in transformer systems.
103 for general thermal sensing circuits.
SEE OR SEARCH CLASS:
318, Electricity: Motive Power Systems, 471 for related
subject matter in motor control systems.
Subclass:
26
With bimetallic sensor:
This subclass is indented under subclass 25. Subject matter
wherein sensing device is bimetallic.
Subclass:
27
With thermistor sensor:
This subclass is indented under subclass 25. Subject matter
wherein the sensing device is a resistor whose
characteristics vary with temperature in a definite manner.
Subclass:
28
With time delay:
This subclass is indented under subclass 23. Subject matter
wherein the protective circuit responds to a fault condition
only after a predetermined time.
SEE OR SEARCH THIS CLASS, SUBCLASS:
89 for time delay circuits combined with voltage responsive
sensor.
94 for time delay circuits combined with current responsive
sensor.
195 and 202, for time delay circuits in control systems for
relays and solenoids.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 141 for time delay circuits in switching circuits.
Subclass:
29
During energization of motor:
This subclass is indented under subclass 28. Subject matter
wherein time delay means are provided for maintaining the
protective circuit in an off condition during normal
start-up.
SEE OR SEARCH THIS CLASS, SUBCLASS:
110 for transient nonresponsive circuits which ignores the
surges on a transmission line.
Subclass:
30
Current and voltage:
This subclass is indented under subclass 23. Subject matter
wherein the sensing means is responsive to an abnormal
current and voltage condition of the protected motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
7 for current and voltage sensitive control circuits in arc
suppression circuits.
65 for current or voltage sensing means in feeder circuits.
79 for current or voltage sensing means in quantity
comparison circuits.
Subclass:
31
Current:
This subclass is indented under subclass 23. Subject matter
wherein the sensing means is responsive to an abnormal
current condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 for current responsive control circuits in arc suppression
circuits.
57 for current sensing means in load shunting circuits.
63 for current sensing means in feeder circuits.
87 for current sensing means in quantity comparison
circuits.
93.1 for specific current responsive sensors.
Subclass:
32
Bimetallic element:
This subclass is indented under subclass 31. Subject matter
wherein the sensing means consist of bimetallic material.
Subclass:
33
Voltage:
This subclass is indented under subclass 23. Subject matter
wherein the sensing means is responsive to an abnormal
voltage condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6 for voltage sensitive control means in arc suppression
circuits.
21 for voltage sensing means in generator circuits.
56 for voltage sensing means in shunt circuits.
86 for voltage sensing means in quantity comparison
circuits.
88 for specific voltage responsive sensor.
Subclass:
34
Bimetallic element:
This subclass is indented under subclass 33. Subject matter
wherein the sensing means consist of bimetallic material.
Subclass:
35
Transformer protection:
This subclass is indented under subclass 1. Subject matter
comprising means for preventing damage to a transformer.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 215, 247, 301, 305, 328, and 355 for transformer
systems.
336, Inductor Devices, for transformer, per se.
340, Communication: Electrical, subclass 646 for transformer
condition responsive indicating means.
Subclass:
36
With differential sensing means:
This subclass is indented under subclass 35. Subject matter
including means which compare the electrical quantities
entering and leaving the transformer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
60 for differential voltage comparison across the circuit
interrupting means.
78 for specific quantity comparison means.
Subclass:
37
With temperature or pressure sensing means:
This subclass is indented under subclass 35. Subject matter
including means responsive to an abnormal temperature or
pressure caused by a fault condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
25 for temperature sensing means in motor systems.
103 for general circuit interruption by thermal sensing
means.
Subclass:
38
Transformer with structurally combined protective device:
This subclass is indented under subclass 35. Subject matter
wherein the protective means is an integral part of the
transformer structure or housing.
Subclass:
39
With lightning arrester and fuse:
This subclass is indented under subclass 38. Subject matter
wherein the protecting device includes means to shunt voltage
surges away from a transformer and means to open the circuit
to the transformer when the current exceeds the maximum rated
value of the protected device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
117 for lightning arrester combined with fuse.
Subclass:
40
With lightning arrester (e.g., spark gap):
This subclass is indented under subclass 38. Subject matter
which shunts voltage surges away from a transformer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
117 for high voltage dissipation (lightning arresters), per
se.
Subclass:
41
With fuse:
This subclass is indented under subclass 38. Subject matter
which opens the circuit to the transformer when the current
exceeds the maximum rated value of the protected device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
104 for circuit interruption by thermal sensing (fuse).
Subclass:
42
Ground fault protection:
This subclass is indented under subclass 1. Subject matter
with means for sensing ground faults and for preventing
damage to a system or device due to the ground fault.
(1) Note. A ground fault is a defect in a wire circuit due
to unintentional grounding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
107 for specific transmission line with ground conductor.
SEE OR SEARCH CLASS:
340, Communications: Electrical, 650 for ground detectors
with indicator only.
Subclass:
43
Fault suppression (e.g., petersen coil):
This subclass is indented under subclass 42. Subject matter
wherein a protective circuit substantially reduces the ground
leakage current.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 326
for safety or limit control features.
Subclass:
44
With differential sensing in a polyphase system:
This subclass is indented under subclass 42. Subject matter
wherein the current going to and returning from the load in a
polyphase system is compared by a sensing means and a sensed
difference activates the protective circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78 for specific quantity comparison means.
Subclass:
45
With differential sensing in a single phase system:
This subclass is indented under subclass 42. Subject matter
wherein the current going to and returning from the load in a
single phase system is compared by a sensing means and a
sensed difference activates the protective circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
78 for specific quantity comparison means.
Subclass:
46
With more than two wires:
This subclass is indented under subclass 45. Subject matter
wherein the current going to and returning from the load in a
single phase system with more than two wires is compared by a
sensing means and a sensed difference activates the
protective circuit.
Subclass:
47
In a polyphase system:
This subclass is indented under subclass 42. Subject matter
wherein the load in a polyphase system is protected from an
unintentional grounding usually by removing the power from
the load when a ground fault is detected by a sensing means.
Subclass:
48
With more than three wires:
This subclass is indented under subclass 47. Subject matter
wherein the polyphase system comprises more than three wires
(e.g., a grounded wye-polyphase with a neutral conductor).
SEE OR SEARCH THIS CLASS, SUBCLASS:
108 for related subject matter with specific transmission
line.
Subclass:
49
In a single phase system:
This subclass is indented under subclass 42. Subject matter
wherein the load in a single phase system is protected from
an unintentional grounding, usually by removing the power
from the load, when a ground fault is detected by a sensing
means.
Subclass:
50
With more than two wires:
This subclass is indented under subclass 49. Subject matter
wherein the load in a single phase system with more than two
wires is protected from an unintentional grounding, usually
be removing the power from the load when a ground fault is
detected by a sensing means.
Subclass:
51
Overspeed responsive:
This subclass is indented under subclass 1. Subject matter
wherein the load is protected from an excessive speed
condition by means which detects the abnormal condition and
activates a protective circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
236 for electrical speed signal processing systems.
SEE OR SEARCH CLASS:
180, Motor Vehicles, 170 for a motor vehicle provided with
means responsive to the speed of the vehicle for maintaining
the speed at or preventing it from exceeding a particular or
value.
Subclass:
52
By regulating source or load (e.g., generator field killed):
This subclass is indented under subclass 1. Subject matter
wherein means are provided to stabilize the power to the
load.
(1) Note. The generator supplying the voltage may, for
example, have its field killed when a short circuit
develops.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 153 for miscellaneous generator control systems.
322, Electricity: Single Generator Systems, 17 for
automatically controlled single generator systems, and
subclasses 69+ for circuit interruption type of generator
control.
323, Electricity: Power Supply or Regulation Systems,
subclass 234 for miscellaneous systems of load control.
Subclass:
53
Prime mover control:
This subclass is indented under subclass 52. Subject matter
wherein the driving means for the source is controlled.
Subclass:
54
Load shunting by fault responsive means (e.g., crowbar
circuit):
This subclass is indented under subclass 1. Subject matter
wherein the load is protected from an overload condition by a
fault sensing means which senses the overload condition and
causes the load to be bypassed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
13 for switch shunting.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 100 for shunting or short circuiting systems.
315, Electric Lamp and Discharge Devices: Systems, 119 for
circuits with automatic shunt or cutout.
Subclass:
55
Disconnect after shunting:
This subclass is indented under subclass 54. Subject matter
wherein the circuit to the load is opened after the overload
condition is shunted from the load.
Subclass:
56
Voltage responsive:
This subclass is indented under subclass 54. Subject matter
wherein the fault sensing means is sensitive to an abnormal
voltage condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6 for voltage sensitive control means in arc suppression
circuits.
21 for voltage sensing means in generator circuits.
33 for voltage responsive control circuits in motor
protective circuits.
86 for voltage sensing means in quantity comparison
circuits.
88 for specific voltage responsive sensor.
SEE OR SEARCH CLASS:
340, Communications: Electrical, 635 for electrical
apparatus condition responsive.
Subclass:
57
Current responsive:
This subclass is indented under subclass 54. Subject matter
wherein the fault sensing means is sensitive to an abnormal
current condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 for current responsive control circuits in arc suppression
circuits.
31 for current responsive control circuitry in motor
protective circuits.
63 for current sensing means in feeder circuits.
87 for current responsive control circuitry in quantity
comparison circuits.
93.1 for current responsive fault sensors.
SEE OR SEARCH CLASS:
340, Communications: Electrical, subclass 664 for current
characteristic actuated circuits in condition responsive
systems.
Subclass:
58
Impedance insertion:
This subclass is indented under subclass 1. Subject matter
wherein an impedance is placed in series with the protected
device or system to limit the current thereto.
SEE OR SEARCH THIS CLASS, SUBCLASS:
10 for impedance insertion in series with switching points.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 276 for limiting current to the load in regulator
system.
Subclass:
59
Circuit automatically reconnected only after the fault is
cleared:
This subclass is indented under subclass 1. Subject matter
wherein fault sensing means activates the circuit disconnect
means when a fault occurs and the circuit is caused to remain
open until the fault is removed. Once the fault is removed
the circuit is automatically reclosed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86 for automatic reclosing, per se.
Subclass:
60
With differential voltage comparison across the circuit
interrupting means:
This subclass is indented under subclass 59. Subject matter
wherein the voltage across the circuit disconnect means is
sensed on both sides of the disconnect means and compared to
determine if the fault has been removed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86 for voltage quantity comparison circuits.
Subclass:
61
Reclosing of the nonfaulty phases of a polyphase system:
This subclass is indented under subclass 59. Subject matter
wherein all phases of a polyphase system are opened due to a
fault, and the nonfaulty phases are subsequently
automatically reconnected.
Subclass:
62
Feeder protection in distribution networks:
This subclass is indented under subclass 1. Subject matter
wherein the system which distributes power from a source
(normally a bus) to the load is protected from a fault
condition by disconnection.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 26 for plural diverse sources of supply, A.C. and
D.C.
Subclass:
63
With current responsive fault sensor:
This subclass is indented under subclass 62. Subject matter
wherein the protective means senses a current fault in the
feeder and activates the disconnect means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 for current responsive control circuits in arc suppression
circuits.
31 for current responsive control circuitry in motor
protective circuits.
57 for current responsive control circuitry in load shunting
circuits.
87 for current responsive control circuitry in quantity
comparison circuits.
93.1 for current responsive fault sensors.
SEE OR SEARCH CLASS:
340, Communications: Electrical, 650 for circuit fault
responsive circuits in condition responsive systems.
Subclass:
64
With communication between feeder disconnect points:
This subclass is indented under subclass 63. Subject matter
wherein the current sensing means activates a communication
means which sends a coded message to adjacent feeder
disconnect points indicating the location of the fault.
SEE OR SEARCH THIS CLASS, SUBCLASS:
68 for communication circuits in series connected sections.
81 for communication circuits in distance relay systems.
Subclass:
65
With current and voltage responsive fault sensors:
This subclass is indented under subclass 62. Subject matter
wherein the fault sensing means detects both current and
voltage in the feeder and activates the disconnect means when
a fault is sensed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
7 for combined voltage and current sensitive control
circuits in arc suppression systems.
30 for combined voltage and current sensitive control
circuits in motor protection circuits.
79 for combined voltage and current sensitive control
circuits in quantity comparison circuits.
Subclass:
66
With communication between feeder disconnect points:
This subclass is indented under subclass 65. Subject matter
wherein the sensing means activates a communication means
which sends a coded message to adjacent feeder disconnect
points indicating the location of the fault.
SEE OR SEARCH THIS CLASS, SUBCLASS:
68 for communication circuits in series connected sections.
81 for communication circuits in distance relay systems.
Subclass:
67
Series connected sections with faulty section disconnect:
This subclass is indented under subclass 1. Subject matter
wherein the system which distributes power (normally a bus
network) has series connected sections and is protected from
a fault condition by disconnecting the faulty section.
Subclass:
68
With communication between disconnect points:
This subclass is indented under subclass 67. Subject matter
wherein communications means sends a coded message between
disconnect points indicating that a fault exists.
(1) Note. Some of the most commonly used communication
systems are: Current Carrier Systems; Radio Wave
Transmitter-Receiver Systems; and Laser Transmitter-Receiver
Systems.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64 and 66, for communication circuits in feeder networks.
81 for communication circuits in quantity comparison systems
(distance relaying).
Subclass:
69
Pilot wire communication:
This subclass is indented under subclass 68. Subject matter
wherein the signal between disconnect points is communicated
over pilot wire.
Subclass:
70
Constant current system:
This subclass is indented under subclass 67. Subject matter
wherein current regulators are used in the system.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 234 for constant current systems.
Subclass:
71
Automatic reclosing:
This subclass is indented under subclass 1. Subject matter
in which the system is automatically restored to normal
operation subsequent to a disconnect operation caused by a
fault condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
59 for automatic reclosing after clearing of fault.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 6 for automatic circuit interrupting
devices, per se.
Subclass:
72
With lockout means:
This subclass is indented under subclass 71. Subject matter
wherein the reclosing means (normally a circuit breaker)
discontinues to reclose after a predetermined number of
reclosings and remains in the open mode.
Subclass:
73
Including timer reset before lockout:
This subclass is indented under subclass 72. Subject matter
wherein timer means is reset if the fault dissipates prior to
a predetermined number of reclosings.
Subclass:
74
Continuous:
This subclass is indented under subclass 71. Subject matter
wherein the system is continuously reconnected after each
disconnect operation, although the fault has not been
cleared.
Subclass:
75
With time delay before reclosing:
This subclass is indented under subclass 74. Subject matter
wherein the system is restored to normal operation after a
predetermined time following each disconnect operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
28 for time delay circuits in motor protection systems.
89 for time delay circuits in voltage responsive systems.
94 for time delay circuits in current responsive systems.
195 for time delay circuits in relay and solenoid systems.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 141 for time delay circuits in switching systems.
Subclass:
76
With phase sequence network analyzer:
This subclass is indented under subclass 1. Subject matter
relating to systems which are responsive to either one or
more of the positive, negative or zero sequence components of
electricity in a polyphase system.
SEE OR SEARCH THIS CLASS, SUBCLASS:
77 for reverse phase responsive sensing.
85 for quantity comparison to determine a phase fault.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, 107 for similar
subject matter but not protective.
Subclass:
77
Reverse phase responsive:
This subclass is indented under subclass 1. Subject matter
relating to systems responsive to a 180 deg. change of phase
and also systems responsive to an improper phase sequence.
(1) Note. This subclass relates, for example, to systems
responsive to a 180 deg. change of phase and also systems
responsive to an improper phase sequence, as for example,
when Conductors A, B, and C are connected respectively to
phases I, III, II, rather than phases I, II, III.
SEE OR SEARCH THIS CLASS, SUBCLASS:
76 for phase sequence sensing.
85 for quantity comparison to determine a phase fault.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 127 for polarity, phase sequence or reverse flow
responsive switching systems.
Subclass:
78
With specific quantity comparison means:
This subclass is indented under subclass 1. Subject matter
wherein a specific electrical quantity (voltage, current,
etc.) is sensed in the load circuit and compared with either
a reference quantity of the same type or another specific
electrical quantity to determine if a fault condition exists.
The protective circuitry is activated when a difference in
the magnitudes of the compared quantities is found to exist.
SEE OR SEARCH CLASS:
340, Communications: Electrical, subclass 661 for a voltage
comparison condition responsive indicating device.
Subclass:
79
Voltage and current:
This subclass is indented under subclass 78. Subject matter
wherein the fault sensor is responsive to abnormal voltage
and current conditions in the load circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 for combined voltage and current sensitive control
circuits in motor protection systems.
65 for combined voltage and current sensitive control
circuits in feeder distribution networks.
Subclass:
80
Distance relaying:
This subclass is indented under subclass 79. Subject matter
wherein the voltages and currents are sensed at specific
points in a system and computed with each other or with
reference quantities to determine if a fault condition exists
in the protected line section.
SEE OR SEARCH THIS CLASS, SUBCLASS:
67 for distance relaying circuits in series connected
sections.
Subclass:
81
With communication means between disconnect points:
This subclass is indented under subclass 80. Subject matter
wherein a communication means sends a coded message between
disconnect points indicating that a fault condition exists.
SEE OR SEARCH THIS CLASS, SUBCLASS:
64 and 66, for communication circuits in feeder networks.
68 for communication circuits in series connected sections.
Subclass:
82
Reverse energy responsive (e.g., directional):
This subclass is indented under subclass 79. Subject matter
wherein the fault sensing means responds to the flow of
energy which is reversed with respect to the normal direction
of flow.
SEE OR SEARCH THIS CLASS, SUBCLASS:
84 for similar subject matter wherein the quantities
compared are not specifically voltage and current.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 127 for polarity, phase sequence or reverse flow
responsive switching systems.
Subclass:
83
With time delay protective means:
This subclass is indented under subclass 79. Subject matter
wherein the protective means is activated at a predetermined
time after a fault is sensed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
28 for time delay circuits in motor protection systems.
75 for time delay means in automatic reclosing systems.
89 for time delay circuits in voltage responsive systems.
94 for time delay circuits in current responsive systems.
195 for time delay circuits in relay and solenoid systems.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 141 for time delay circuits in switching circuits.
Subclass:
84
Reverse energy responsive (e.g., directional):
This subclass is indented under subclass 78. Subject matter
wherein the fault sensing means responds to the flow of
energy which is reversed with respect to the normal direction
of flow.
SEE OR SEARCH THIS CLASS, SUBCLASS:
82 for similar subject matter wherein the quantities
compared are specifically voltage and current.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 127 for polarity, phase sequence or reverse flow
responsive switching systems.
Subclass:
85
Phase:
This subclass is indented under subclass 78. Subject matter
wherein the protective circuitry is activated by a difference
in the phases of the compared electrical quantities.
SEE OR SEARCH THIS CLASS, SUBCLASS:
76 for phase sequence sensing to determine a fault.
77 for reverse phase responsive sensing.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, 76.77 for phase
comparison circuits.
Subclass:
86
Voltage:
This subclass is indented under subclass 78. Subject matter
wherein the protective circuitry is activated by a difference
in the compared circuits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6 for voltage sensitive control means in arc suppression
circuits.
21 for voltage responsive control circuits in generator
protective systems.
33 for voltage responsive control circuits in motor
protective systems.
56 for voltage responsive control circuits in load shunting
systems.
88 for voltage responsive fault sensors.
Subclass:
87
Current:
This subclass is indented under subclass 78. Subject matter
wherein the protective circuitry is activated by a difference
in the compared currents.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 for current sensing means in arc suppression circuits.
31 for current responsive control circuitry in motor
protective circuits.
57 for current sensing means in load shunting circuits.
63 for current sensing means in feeder circuits.
93.1 for specific current responsive sensors.
Subclass:
88
With specific voltage responsive fault sensor:
This subclass is indented under subclass 1. Subject matter
wherein the fault sensor responds to an abnormal voltage
condition in the load circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6 for voltage sensitive control means in arc suppression
circuits.
21 for voltage responsive control circuits in generator
protective systems.
32 for voltage responsive control circuits in motor
protective circuits.
56 for voltage responsive control circuits in load shunting
systems.
86 for voltage responsive control circuits in quantity
comparison circuits.
SEE OR SEARCH CLASS:
340, Communications: Electrical, 635 for electrical
apparatus condition responsive indicating means.
Subclass:
89
With time delay protective means:
This subclass is indented under subclass 88. Subject matter
wherein the protective means is activated at a predetermined
time after the fault is sensed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
195 for time delay circuits in relay and solenoid systems.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 141 for time delay circuits in switching system.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, 261 and 392+ for miscellaneous delay
circuits.
Subclass:
90
Overvoltage and undervoltage:
This subclass is indented under subclass 88. Subject matter
wherein the fault sensor is responsive to a combined
overvoltage and undervoltage condition.
Subclass:
91.1
Overvoltage:
This subclass is indented under subclass 88. Subject matter
wherein the fault sensor is responsive to an overvoltage
condition.
(1) Note. This subclass relates to protection involving
overvoltage conditions which are considered to be fault
conditions and not otherwise. Fault conditions are defined as
those which could result in damage to the load circuit, if
ignored, but do not include electrostatic discharge (ESD)
event.
(2) Note. For ESD event protection, see Class 361, subclass
56.
SEE OR SEARCH THIS CLASS, SUBCLASS:
18 for voltage regulation by sensing overvoltage
conditions.
33 for sensing abnormal voltage conditions in motor
circuits.
56 for load shunting by sensing an abnormal voltage
condition.
111 for protection from transient overvoltage conditions.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices, (e.g., Transistors,
Solid-State Diodes), subclass 173 for device protection from
overvoltage.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, subclass 20 for automatically response
to abnormal voltage condition.
340, Communications: Electrical, subclass 662 for humanly
perceptible means responsive to overvoltage.
Subclass:
91.2
With resistor sensor:
This subclass is indented under subclass 91.1. Subject
matter including a device offering resistance to a flow of
electric current and wherein the overvoltage condition is
detected across the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 switch position dependent upon sensed current across a
resistance.
31 for sensing abnormal voltage conditions in motor circuits
by sensing across resistance.
57 for load shunting by sensing an abnormal voltage
condition across resistance.
63 for feeder protection with disconnect by sensing an
abnormal voltage condition across resistance.
78 for quantity comparisons including sensing overvoltage
conditions across resistance.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, subclass 522 for
measuring resistance, per se.
338, Electrical Resistors, subclass 21 for a resistor
responsive to surge voltage conditions.
Subclass:
91.3
Including time delay:
This subclass is indented under subclass 91.1. Subject
matter wherein the overvoltage condition is detected and/or
the fault is removed after a predetermined time period
utilizing time delay circuitry.
SEE OR SEARCH THIS CLASS, SUBCLASS:
28 for abnormal voltage conditions in motor circuits wherein
the protective circuit responds to a fault condition after a
predetermined time period.
195 for relay or solenoids safety or protection device
including time delay.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Device,
Circuits, and Systems, subclass 392 for circuitry having a
fixed or single time delay controlled switch.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, subclass 28, for electromagnetically
actuated switches with combined timing or delay means.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 81 and subclass 88 for retarded or
delayed action thermally actuated switch.
340, Communications: Electrical, subclass 527 for humanly
perceptible means responsive to time delay.
Subclass:
91.4
Including photo-coupling (e.g., photo-receptors,
photo-emitters, etc):
This subclass is indented under subclass 91.1. Subject
matter including a means responsive to light to produce an
electrical signal (i.e., photocouple) and wherein the
photocoupler is utilized in the detection and/or removal of
the overvoltage condition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
173 for abnormal voltage conditions in relay circuits
wherein a light responsive element is utilized in offering
protection
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, subclass 420, 556
for sensing voltage conditions involving photo-coupling, per
se.
Subclass:
91.5
Including P-N junction (e.g., a diode, a zener diode, or
transistor):
This subclass is indented under subclass 91.1. Subject
matter comprising a P-N junction device and wherein the
device is utilized in the detection and/or fault removal of
the overvoltage condition (e.g., P-N threshold breakdown or
transistor clamping).
(1) Note. P-N junction circuitry protection as found
predominantly within the circuitry with less emphasis on
substrate configurations are classified here, however,
details drawn to substrate technology should be classified in
Class 257.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices, (e.g., Transistors,
Solid-State Diodes), 355 for P-N junction protection.
Subclass:
91.6
With zener diode sensor:
This subclass is indented under subclass 91.5. Subject
matter including a zener diode sensor and wherein the
overvoltage condition is detected across a zener junction.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices, (e.g., Transistors,
Solid-State Diodes), subclasses 106 for tunneling P-N
junction including zener diode.
Subclass:
91.7
Protection by snubber circuitry:
This subclass is indented under subclass 91.1. Subject
matter wherein fault removal includes auxiliary circuitry
which limits the rate-of-rise of voltage or current utilizing
circuitry or circuit element such as RC, diode, transistor
and/or inductor arrangements, individually or in combination
therewith.
SEE OR SEARCH THIS CLASS, SUBCLASS:
13 for switch protection including alternative current
shunting paths.
15 for capacitor protection via current shunting paths.
18 for voltage regulation wherein upon interruption, excess
currents dissipated.
58 for load shunting by sensing an abnormal voltage
condition where excess energy is dissipated.
Subclass:
91.8
Protection for thyristor:
This subclass is indented under subclass 91.1. Subject
matter including a thyristor and wherein the overvoltage
protection is applied to the thyristor or circuitry including
the thyristor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
15 for capacitor protection including thyristor switching
networks having overvoltage protection.
18 for voltage regulation incorporating voltage conversion
utilizing controlling thyristors having overvoltage
protection.
23 for motor control circuitry including thyristors.
58 for shunt circuitry including thyristors.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems, 50 for
thyristor protection.
Subclass:
92
Undervoltage:
This subclass is indented under subclass 88. Subject matter
under subclass wherein in fault sensor is responsive to an
undervoltage condition.
Subclass:
93.1
With specific current responsive fault sensor:
This subclass is indented under subclass 1. Subject matter
wherein the fault sensor responds to an abnormal current
condition in an electrical system and to activate the
protective means in response thereto.
(1) Note. This subclass relates to protection involving
abnormal current conditions which are considered to be fault
conditions and not otherwise.
(2) Note. Fault conditions are defined as those which could
result in damage to the electrical system, if ignored.
Abnormal current conditions include both overcurrents and
undercurrents, unless indicated otherwise.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5 for current responsive control circuits in arc suppression
circuits.
31 for current responsive control circuitry in motor
protective circuits.
57 for current responsive control circuitry in load shunting
circuits.
63 for current responsive control circuitry in feeder
distribution networks.
87 for current responsive control circuitry in quantity
comparison circuits.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 277 for output level responsive to load current
sensor.
324, Electricity: Measuring and Testing, subclass 509 for
ground fault sensing by detecting current leakage to ground,
and subclass 522 for fault location determination by current
or voltage measuring.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, subclass 18, for electromagnetically
actuated switches responsive to predetermined or abnormal
current condition.
Subclass:
93.2
Digital control:
This subclass is indented under subclass 93.1. Subject
matter wherein the protective device includes processing
circuitry (i.e., micro-controller, micro-processor, memory
device) and the processing circuitry is utilized in the fault
removal of the sensed abnormal current condition.
(1) Note. Subject matter of this subclass is not drawn to
substantial specifics of data processing or formula computing
operations by the processing circuitry.
SEE OR SEARCH CLASS:
364, Electrical Computers and Data Processing Systems,
subclass 184 for computer system relating to protection and
reliability of control system, subclasses 483+ for current or
power measuring and testing, and subclass 492 for current
measuring in power generation or distribution.
702, Data Processing: Measuring, Calibrating, or Testing,
subclass 64 for voltage or current parameter measuring in an
electrical system or method.
Subclass:
93.3
Rating plug:
This subclass is indented under subclass 93.1. Subject
matter wherein the protective device includes a removable
component and wherein the component allows setting of current
ratings and/or trip specifications for the fault removal.
(1) Note. Removable components range from jumper wires and
burden resistors to printed circuit boards.
SEE OR SEARCH THIS CLASS, SUBCLASS:
633 for a plugboard in housing or mounting assemblies with
diverse electrical components.
Subclass:
93.4
Automatic reset after trip:
This subclass is indented under subclass 93.1. Subject
matter wherein the protective device interrupts the
electrical system in response to the sensed abnormal current
condition, and thereafter automatically restores the system
to its normal operating conditions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
59 for a circuit automatically connected only after fault is
cleared.
71 for automatic reclosing.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets and
Electromagnets, 26 and 166 for a magnetically operated
switch or electromagnet having a latch or trip circuitry
including reclosing or resetting features.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 130 and subclass 155 for a thermally
actuated switch having a latching mechanism including reset
or reclosing features.
Subclass:
93.5
Transformer and resistor sensors:
This subclass is indented under subclass 93.1. Subject
matter including an inductively coupled device and a
resistive device and wherein the abnormal current condition
is detected with both the inductively coupled device and the
resistive device.
Subclass:
93.6
Transformer sensor (i.e., toroidal current sensor):
Subject matter under 93.1 including an inductively coupled
device and wherein the abnormal current condition is detected
with the inductively coupled device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42 for ground-fault current condition sensing utilizing
toroids or current transformers.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, subclass 244 for
sensing utilizing saturable core magnetometers and subclass
529 for sensing fault location with magnetic field sensors.
336, Inductor Devices, subclass 175 for details drawn to
transformer sensor.
340, Communications: Electrical, subclass 646 for a
transformer utilized in humanly perceptible means in
responsive to a predetermined condition.
374, Thermal Measuring and Testing, subclass 152 for
temperature measuring including electrical component (e.g.,
transformer).
Subclass:
93.7
Resistor sensor:
This subclass is indented under subclass 93.1. Subject
matter including a device offering resistance to a flow of
electric current and wherein the abnormal current condition
is detected with the resistive device.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 2 for details drawn to a resistor
sensor, per se, and subclass 20 for a resistor responsive to
current or voltage impressed across the resistor.
Subclass:
93.8
Thermal sensing:
This subclass is indented under subclass 93.1. Subject
matter including a means responsive to a predetermined amount
of heat and wherein the abnormal current condition is
determined by the heat responsive means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
103 for electrical system interruption by thermal sensing.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets and
Electromagnets, subclass 44 for magnetically operated
switches including ambient temperature compensating means.
336, Inductor Devices, subclass 179 for coil with
temperature compensating means.
374, Thermal Measuring and Testing, appropriate subclass for
measuring and testing thermal quantities.
Subclass:
93.9
Current limiting:
This subclass is indented under subclass 93.1. Subject
matter wherein the protective device includes a means for
reducing the flow of the sensed overcurrent without
interrupting the flow of current in the electrical system.
SEE OR SEARCH THIS CLASS, SUBCLASS:
58 for load shunting by sensing an abnormal voltage
condition.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 276 for limiting current to a load within a
regulator system.
Subclass:
94
With time delay protective means:
This subclass is indented under subclass 93.1. Subject
matter wherein the protective means is activated at a
predetermined time after the fault is sensed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
195 for time delay circuits in relay and solenoid systems.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems,
subclass 141 for time delay circuits in switching systems.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, 261 and 392+ for miscellaneous delay
circuits.
Subclass:
95
With instantaneous override:
This subclass is indented under subclass 94. Subject matter
wherein the protective means is activated at a predetermined
time after a first level fault is sensed, or immediately
after a fault of a higher predetermined level is sensed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
111 for general transient responsive circuits (disconnects
circuit).
Subclass:
96
With multiple timing characteristics (e.g., short, long):
This subclass is indented under subclass 95. Subject matter
wherein the protective means is activated after a short,
intermediate, long, etc., time delay depending on the
magnitude of the fault sensed.
Subclass:
97
With multiple timing characteristics:
This subclass is indented under subclass 94. Subject matter
wherein the protective means is activated after a short,
long, intermediate, etc., time delay depending on the
magnitude of the fault sensed.
Subclass:
98
Transistorized:
This subclass is indented under subclass 94. Subject matter
wherein the protective system utilizes solid state
components.
Subclass:
99
Combined thermal-electromagnetic relay:
This subclass is indented under subclass 94. Subject matter
wherein thermal and electromagnetic means are combined to
perform the timing or circuit interrupt functions.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 35 for electromagnetically operated
circuit breakers with combined magnetic and thermal trip
means, and subclasses 141+ for switches with combined
magnetic and thermal operating means.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclasses for thermal-type circuit
breakers, per se.
Subclass:
100
With semiconductor circuit interrupter (e.g., SCR, triac,
tunnel diode, etc.):
This subclass is indented under subclass 93.1. Subject
matter wherein the protective device which causes the current
to the load to be discontinued is of the semiconductor type.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, 365 for semiconductor interrupter,
per se.
Subclass:
101
With transistor circuit interrupter:
This subclass is indented under subclass 100. Subject matter
wherein the protective device which causes the current to the
load to be discontinued is of the transistor type.
Subclass:
102
With mechanical circuit breaker:
This subclass is indented under subclass 93.1. Subject
matter wherein the protective device which disconnects the
load from the source is of the mechanical circuit breaker
type.
SEE OR SEARCH THIS CLASS, SUBCLASS:
115 for subject matter with specific circuit breaker or
circuit breaker control structure.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, for specific
mechanical circuit breaker.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 2 for specific electromagnetic circuit
breaker.
Subclass:
103
Circuit interruption by thermal sensing:
This subclass is indented under subclass 1. Subject matter
wherein a thermally responsive device detects either the
excessive heat of the device being protected or the excessive
heat generated in the thermally responsive device and
activates the circuit interrupter which disconnects the load
from the source.
SEE OR SEARCH THIS CLASS, SUBCLASS:
124 for thermally responsive high voltage dissipation
devices.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, for similar subject matter.
340, Communications: Electrical, 584 for electrical thermal
alarms and signals.
Subclass:
104
With fuse:
This subclass is indented under subclass 103. Subject matter
wherein the thermally responsive device is a fuse.
Subclass:
105
With bimetallic element:
This subclass is indented under subclass 103. Subject matter
wherein the thermally responsive device is a bimetallic
element.
Subclass:
106
With thermistor:
This subclass is indented under subclass 103. Subject matter
wherein the thermally responsive device is a resistor whose
characteristics vary with temperature.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 25 for the thermally responsive
resistor, per se.
Subclass:
107
With specific transmission line (e.g., guarded):
This subclass is indented under subclass 1. Subject matter
wherein the transmission line has significant mechanical or
structural features.
(1) Note. The transmission line, for example, may be
provided with guarding means, such as ground wires which act
as shields.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, for conductors,
per se.
Subclass:
108
Plural conductors in single sheath (e.g., compound):
This subclass is indented under subclass 107. Subject matter
having plural conductors in a single sheath.
(1) Note. This subclass relates, for example, to systems
using "compound" cables.
Subclass:
109
Too large fault makes breaker inoperative:
This subclass is indented under subclass 1. Subject matter
having means for rendering a circuit breaker inoperative in
the presence of a fault of such a large size that the circuit
breaker cannot handle it.
(1) Note. This subclass relates, for example, to circuit
breaker systems in which a smaller capacity circuit breaker
has associated with it "back up" protection and in which only
the "back up" protection operates on very large faults.
Subclass:
110
Transient nonresponsive (e.g., ignores surge on transmission
line):
This subclass is indented under subclass 1. Subject matter
wherein the protective means does not respond to a large
transient surge.
(1) Note. During a switching operation a surge is normally
induced. The subject matter in this subclass is
nonresponsive to that surge.
Subclass:
111
Transient responsive:
This subclass is indented under subclass 1. Subject matter
wherein the protective means responds to a transient surge,
normally caused by switching.
SEE OR SEARCH THIS CLASS, SUBCLASS:
95 for instantaneous override in current responsive
systems.
Subclass:
112
With space discharge means:
This subclass is indented under subclass 1. Subject matter
having space discharge means.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, appropriate
subclasses for space discharge means, per se.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for
miscellaneous space discharge systems not otherwise
classified.
Subclass:
113
With tuned circuit:
This subclass is indented under subclass 1. Subject matter
having a tuned circuit.
Subclass:
114
With manual or automatic opening of breaker and manual
reclose:
This subclass is indented under subclass 1. Subject matter
which is provided with means to open the circuit breaker
either manually or automatically and to reclose the breaker
manually.
(1) Note. This subclass relates, for example, to systems
having both a local manual control and a remote automatic
control for a circuit breaker.
Subclass:
115
With specific circuit breaker or control structure:
This subclass is indented under subclass 1. Subject matter
wherein the circuit breaker or its control means has
significant mechanical features.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, appropriate subclasses for the structure
of electromagnetically operated circuit breakers, per se.
Subclass:
116
Pneumatically operated circuit breaker:
This subclass is indented under subclass 115. Subject matter
wherein the circuit breaker is operated by pneumatic means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 81 for fluid
pressure operated circuit breakers, per se.
Subclass:
117
High voltage dissipation (e.g., lightning arrester):
This subclass is indented under subclass 1. Subject matter
comprising means for reducing the voltage of a surge applied
to its terminals without disconnecting the load.
(1) Note. The surge normally being applied by lightning.
(2) Note. This subclass relates, for example, to lightning
arresters and surge dissipators, where the line wire or some
other structure that relates to the conductor is claimed.
When the line wire is not claimed, and only the terminals of
the dissipator are claimed the dissipator is classified in
one of the classes referred to under search class below.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 2 for
lightning protection by means of conductive structure, such
as lightning rods; also, consult the search notes to this
subclass. Search subclasses 140+ for insulators combined
with conductive arcing or stress distributing means.
313, Electric Lamp and Discharge Devices, appropriate
subclasses for lightning arresters of the arc or spark gap
type, not having line conductor structure. Also consult the
search notes in the class definition for related art.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 28 for lightning arresters combined with
thermal current type circuit breakers.
338, Electrical Resistors, 20 for electric resistors
responsive to current and/or voltage changes.
Subclass:
118
Surge prevention (e.g., choke coil):
This subclass is indented under subclass 117. Subject matter
consisting of means to diminish the effect of transient
surges of short duration.
SEE OR SEARCH THIS CLASS, SUBCLASS:
40 for surge prevention in transformer circuits.
111 for general transient responsive circuits (disconnects
circuit).
Subclass:
119
In communication systems:
This subclass is indented under subclass 118. Subject matter
specifically for the protection of communication systems
(e.g., radio, T.V., etc.).
Subclass:
120
Vacuum or gas filled space discharge:
This subclass is indented under subclass 117. Subject matter
having a vacuum chamber or a gas filled or vapor filled
chamber through which electricity passes by means of space
conduction.
Subclass:
121
Fluid (e.g., mercury, quenching):
This subclass is indented under subclass 117. Subject matter
having a fluid filled chamber through which electricity
passes.
Subclass:
122
Electrolytic:
This subclass is indented under subclass 121. Subject matter
wherein the fluid utilized is an electrolyte.
Subclass:
123
Gas blast:
This subclass is indented under subclass 121. Subject matter
wherein the fluid may be vaporized by an arc therethrough and
as a result, creates a blast of vapor which will blowout the
arc, or the fluid may be compressed air which, upon being
released, will blowout the arc.
Subclass:
124
Thermal (e.g., fusible, bimetallic):
This subclass is indented under subclass 117. Subject matter
wherein the protective device responds to an abnormal
temperature created by a surge.
(1) Note. This subclass relates, for example, to high
voltage dissipators having fusible links, or having
bimetallic elements which move when their temperature
changes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
103 for protection circuits which utilize thermal sensors.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, 298 for specific thermal switch.
Subclass:
125
With cutout (e.g., blowout type):
This subclass is indented under subclass 124. Subject matter
including a switch containing a material which disintegrates
or separates to protect the lightning arrester.
Subclass:
126
Current limiting material in discharge path:
This subclass is indented under subclass 117. Subject matter
including a current limiting material in the discharge path.
(1) Note. This subclass relates, for example, to high
voltage dissipators in which an arc takes place through a
porous composition when a high voltage must be dissipated to
ground.
Subclass:
127
Nonlinear material (e.g., valve type):
This subclass is indented under subclass 126. Subject matter
in which the current limiting material is a conductive
nonlinear material.
(1) Note. The material utilized is usually of a negative
coefficient type, which allow the initial surge to easily
pass to ground and effectively blocks the follow current.
Subclass:
128
With plural gaps in discharge path:
This subclass is indented under subclass 127. Subject matter
including plural gaps in the discharge path which increase
the current handling capabilities of the lightning arrester.
Subclass:
129
Plural gaps with common electrode:
This subclass is indented under subclass 117. Subject matter
including plural gaps in the discharge path with a common
electrode.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 243 for plural air
gap discharge devices not having line or conductor structure
as part thereof.
Subclass:
130
Plural gaps serially connected:
This subclass is indented under subclass 117. Subject matter
including plural gaps in the discharge path which are
serially connected to increase the current handling
capabilities of the lightning arrester.
SEE OR SEARCH CLASS:
315, Electric Lamp and Discharge Devices: Systems, subclass
36 for subcombination of lightning arrester.
Subclass:
131
Combined (e.g., with disconnect switch):
This subclass is indented under subclass 117. Subject matter
combined with some other type of subject matter (e.g.,
disconnect switch).
SEE OR SEARCH THIS CLASS, SUBCLASS:
40 for high voltage dissipator combined with transformer.
Subclass:
132
With line supporting insulator:
This subclass is indented under subclass 131. Subject matter
in combination with a line supporting insulator.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, for line
supporting insulators, per se.
Subclass:
133
With magnetic means (e.g., electromagnet):
This subclass is indented under subclass 117. Subject matter
including magnetic means associated with the discharge
circuit.
Subclass:
134
Arc stretching (e.g., blowout):
This subclass is indented under subclass 133. Subject matter
wherein magnetic means are used to lengthen the arc thereby
isolating the load circuit.
SEE OR SEARCH CLASS:
218, High-Voltage Switches With Arc Preventing and
Extinguishing Devices, 22 for magnetic blowouts used with
switches.
313, Electric Lamp and Discharge Devices, 153 for
miscellaneous space discharge devices having magnetic means
for influencing the space discharge.
Subclass:
135
By separating contacts:
This subclass is indented under subclass 134. Subject matter
wherein magnetic means are used for separating the contacts
across which the arc is stretched.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, appropriate subclasses for
electromagnetically operated switches in which an
electromagnet is used as a source of force to separate two or
more contacts.
Subclass:
136
For grounding line:
This subclass is indented under subclass 133. Subject matter
wherein the magnetic means is used to ground the lines.
Subclass:
137
Horn gap:
This subclass is indented under subclass 117. Subject matter
consisting of a horn gap.
(1) Note. A horn gap is defined as being an air gap between
two electrodes which have such a configuration that the arc,
which takes place between them when the gap breaks down, is
located first at a point where the electrodes are closely
adjacent to each other, and then, under the action of the
resulting electrical or thermal currents, rises and lengthens
by shifting to a region where the distance between the
electrodes is greater. Eventually, the arc ruptures because
of its great length.
Subclass:
138
With resistance insertion:
This subclass is indented under subclass 137. Subject matter
wherein resistances are inserted in the path of the arc as it
lengthens.
SEE OR SEARCH THIS CLASS, SUBCLASS:
12 for inserting impedance in horn gap in arc suppression
systems.
Subclass:
139
CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES:
This subclass is indented under the class definition.
Subject matter relating to control circuits for relays and
other electromagnetic devices.
(1) Note. When the relay controls a particular device,
classification is not in this subclass but is in the class
that provides for the art environment. Note that many
electrical and nonelectrical classes have disclosures which
include, as part thereof, relay and electromagnet control
circuits. Therefore, in appropriate instances, the search
should extend to the class which relates to the environment
in which the relay or electromagnet circuit might be found.
SEE OR SEARCH CLASS:
178, Telegraphy, appropriate subclasses for television and
telegraph systems utilizing electromagnets and relays. Note,
particularly 70 for telegraph code repeaters.
222, Dispensing, for dispensing devices utilizing
electromagnetic actuators.
235, Registers, 61 for electric calculators having relay
type counting chains.
251, Valves and Valve Actuation, 129.01 for electromagnetic
valve operators.
307, Electrical Transmission or Interconnection Systems,
subclass 101 for miscellaneous remnant and residual
magnetism control, subclass 104 for miscellaneous
electromagnet and highly inductive systems, and subclasses
112+ for miscellaneous switching systems.
313, Electric Lamp and Discharge Devices, 153 and 364+ for
cathode-ray, lamp and space discharge devices having magnetic
means.
314, Electric Lamp and Discharge Devices: Consumable
Electrode, for arc lamps having electromagnet or relay means
to control the arc. Note, for example, subclass 78, 113+ and
135.
315, Electric Lamp and Discharge Devices: Systems, 399 for
cathode-ray tube deflecting circuits utilizing
electromagnets.
318, Electricity: Motive Power Systems, appropriate
subclasses for electric motor control systems utilizing
electromagnets or relays. Note that any electromagnet is an
electrothermal transducer and therefore it is an electric
motor. Also, see subclass 492 for electric motor systems
having means to dissipate the magnetic energy of the electric
motor.
322, Electricity: Single Generator Systems, appropriate
subclasses, especially 17 for generator systems having relay
control means.
323, Electricity: Power Supply or Regulation Systems,
appropriate subclasses for voltage control and phase control
systems having relays and electromagnets.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for
miscellaneous nonlinear active device circuits.
331, Oscillators, appropriate subclasses for self-sustained
electric wave generator systems of the nondynamoelectric
type.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, appropriate subclasses for
electromagnetic relays, per se.
379, Telephonic Communications, appropriate subclasses for
telephone systems utilizing electromagnets and relays.
600, Surgery, 9.
607, Surgery: Light, Thermal, and Electrical Application,
subclass 1.
Subclass:
140
Including compensation for thermal change of electromagnetic
device:
This subclass is indented under subclass 139. Subject matter
wherein circuits or devices are included which compensate for
any thermal changes of the electromagnetic device caused by
ambient temperature changes or by the heat generated during
the operation of the device.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, subclass 105 for
electric meters having thermal compensating means.
338, Electrical Resistors, 7 for electrical resistors whose
resistance value is temperature compensated.
Subclass:
141
Including superconductivity:
This subclass is indented under subclass 139. Subject matter
utilizing electromagnetic devices or control circuit
conductors which are superconductive.
(1) Note. Superconductivity is a property possessed by some
metals, alloys, and compounds when their temperature is
reduced to within a few degrees of absolute zero. There is a
steady fall of resistance with temperature in these materials
until a critical temperature (transition temperature) is
reached, and then the resistance falls suddenly to zero or
practically to zero.
SEE OR SEARCH CLASS:
505, Superconductor Technology: Apparatus, Material,
Process, particularly 150 for high temperature
(T[subscrpt]c[end subscrpt] 30 K) superconducting systems or
devices, subclass 192 for capacitors having high temperature
superconducting materials, and cross-reference art
collections in subclass 851 for control circuits for
electromagnetic devices that are superconductive, or that
control superconductive devices.
Subclass:
142
Including housing:
This subclass is indented under subclass 139. Subject matter
wherein the control circuit or the electromagnetic device or
both are housed or enclosed.
(1) Note. The enclosure is specifically designed to protect
the control circuit or device against damage or heat, or to
be a plug-in unit.
Subclass:
143
Systems for magnetizing, demagnetizing or controlling the
magnetic field:
This subclass is indented under subclass 139. Subject matter
including systems and processes for magnetizing,
demagnetizing or effecting a magnetic field by means of
controlled energization or deenergization of an
electromagnetic coil.
(1) Note. This subclass includes, for example, processes
for demagnetizing the hair springs of a watch and systems for
supplying energy to a demagnetizing coil.
(2) Note. Where the demagnetizing is combined with the
specific features of the art environment, the search should
extend to the class which relates to the art environment.
Subclass:
144
For lifting or holding:
This subclass is indented under subclass 143. Subject matter
wherein the electromagnet is used for lifting, suspending,
holding or displacing objects by controlling the field of the
electromagnet.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclass 90.5
for magnetic supports.
Subclass:
145
Magnetic chuck-type:
This subclass is indented under subclass 144. Subject matter
wherein the work function is performed by a magnetic
chuck-type electromagnet.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, subclass 291 for magnetic chuck
structure.
Subclass:
146
Systems for magnetic field stabilization or compensation:
This subclass is indented under subclass 143. Subject matter
including systems which maintain the value of the force of
the magnetic field or compensate for the effects of external
magnetic forces on the electromagnet.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, 300 for related
subject matter involving nuclear induction.
Subclass:
147
With permanent magnet:
This subclass is indented under subclass 143. Subject matter
wherein a permanent magnet is combined with the
electromagnet.
Subclass:
148
Calibration or permanent magnet:
This subclass is indented under subclass 147. Subject matter
wherein the strength of the field of the permanent magnet is
adjusted to a predetermined value.
Subclass:
149
Demagnetizing:
This subclass is indented under subclass 143. Subject matter
including systems and processes for neutralizing a magnetic
field by means of controlled energization or deenergization
of an electromagnetic coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
267 for demagnetizing systems and processes, per se.
Subclass:
150
Television degaussing:
This subclass is indented under subclass 149. Subject matter
wherein the demagnetizing system or process is peculiar to a
television receiver.
SEE OR SEARCH CLASS:
315, Electric Lamp and Discharge Devices: Systems, subclass 8
for cathode-ray tube degaussing systems.
Subclass:
151
Magnetic tape:
This subclass is indented under subclass 149. Subject matter
wherein the demagnetizing system or process is peculiar to
neutralizing magnetic tape.
Subclass:
152
Including particular drive circuit:
This subclass is indented under subclass 143. Subject matter
including a drive circuit specifically designed to meet the
required operating parameters of an electromagnetic device.
(1) Note. The drive circuits included satisfy such
operating parameters as providing plural distinct operating
currents or providing pulses to the device to operate it in a
specific manner.
Subclass:
153
Pulse initiated:
This subclass is indented under subclass 152. Subject matter
wherein a circuit or device which responds to a voltage pulse
signal is used to initiate the operation of the
electromagnetic device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
186 for miscellaneous pulse initiated control circuits for
relays and solenoids.
Subclass:
154
Including means to establish plural distinct current levels
(e.g., high, low):
This subclass is indented under subclass 152. Subject matter
wherein the drive circuit includes means to establish plural
distinct current levels.
(1) Note. The plural distinct current levels may include,
for example, a high initial current to quickly operate the
relay and subsequent lesser current value to "hold" the relay
operated.
Subclass:
155
With capacitor charging or discharging through coil:
This subclass is indented under subclass 154. Subject matter
wherein the plural current levels are obtained by the
charging or discharging of a capacitor through the coil of
the electromagnetic device.
Subclass:
156
With capacitor charging or discharging through coil:
This subclass is indented under subclass 152. Subject matter
wherein the drive circuit includes the charging or
discharging of a capacitor through the coil of the device to
control the operating current.
SEE OR SEARCH THIS CLASS, SUBCLASS:
155 for plural distinct current levels.
Subclass:
157
Including instrument (e.g., meter-relay):
This subclass is indented under subclass 139. Subject matter
wherein an instrument is included in the control circuit.
(1) Note. The instrument may itself be the combination of a
meter with contacts or a relay may be combined with the meter
so that the meter movement actuates the relay.
Subclass:
158
Temperature indicating instrument:
This subclass is indented under subclass 157. Subject matter
wherein the instrument of the meter-relay combination gives
an indication of temperature.
Subclass:
159
Including means for using, or compensating for the induced
EMF of the electromagnetic device:
This subclass is indented under subclass 139. Subject matter
wherein a circuit or device is included which utilizes the
induced electromotive force generated by the operation of the
electromagnetic device.
(1) Note. The system may, for example, store the induced
EMF and subsequently use this stored EMF to aid in operating
the electromagnetic device.
Subclass:
160
For relays or solenoids:
This subclass is indented under subclass 139. Subject matter
wherein the electromagnetic device is a relay or a solenoid.
Subclass:
161
Including thermal device:
This subclass is indented under subclass 160. Subject matter
wherein a thermal device is included in the control circuit
of the relay or solenoid.
SEE OR SEARCH CLASS:
338, Electrical Resistors, 25 for electrical resistors
responsive to a change in ambient temperature.
Subclass:
162
Thermoelectric:
This subclass is indented under subclass 161. Subject matter
wherein the thermal device is of the thermo couple type.
Subclass:
163
Bimetallic element:
This subclass is indented under subclass 161. Subject matter
wherein the thermal device is a bimetallic element.
Subclass:
164
Including heater:
This subclass is indented under subclass 163. Subject matter
which includes a heating element to control the operation of
the bimetallic element.
Subclass:
165
Thermistor:
This subclass is indented under subclass 161. Subject matter
wherein the thermal device is a thermistor.
Subclass:
166
Plural relays or solenoids sequentially operated:
This subclass is indented under subclass 160. Subject matter
having plural relays or solenoids as the controlled devices
which are operated in a predetermined sequence.
SEE OR SEARCH THIS CLASS, SUBCLASS:
171 for this subject matter with code responsive control
circuit.
Subclass:
167
Alternately operated:
This subclass is indented under subclass 166. Subject matter
wherein the plural relays or solenoids are operated in an
alternate sequence.
Subclass:
168.1
Pulse responsive:
This subclass is indented under subclass 166. Subject matter
wherein the predetermined sequence of operation of the relays
or solenoids are controlled by a drive circuit or device
which responds to a voltage pulse circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
186 for pulse responsive control circuits.
SEE OR SEARCH CLASS:
329, Demodulators, 311 for pulse demodulators.
340, Communications: Electrical, subclass 825.66 for
selective circuits using relay counting chains.
377, Electrical Pulse Counters, Pulse Dividers, or Shift
Registers: Circuits and Systems, subclass 65 for shift
registers using electromechanical relays and subclass 83 for
counting chains using relays.
Subclass:
169.1
Including electronic element:
This subclass is indented under subclass 168.1. Subject
matter wherein electronic devices are utilized.
SEE OR SEARCH THIS CLASS, SUBCLASS:
172 for this subject matter in pulse responsive control
circuits.
Subclass:
170
Condition responsive (e.g., external circuit condition):
This subclass is indented under subclass 160. Subject matter
including circuits or devices which respond to external
circuit conditions to initiate the operation of the relay or
solenoid.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 116
for condition responsive circuits in switching systems.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, 509 for miscellaneous external effect
circuits.
340, Communications: Electrical, 500 for condition
responsive circuits in communication systems.
Subclass:
171
Code responsive:
This subclass is indented under subclass 170. Subject matter
wherein the external circuit condition required to operate
the relay or solenoid is the application of the proper code
pulses to the control circuit.
SEE OR SEARCH CLASS:
70, Locks, subclass 278 .1 for this subject matter utilized
in locks.
340, Communications: Electrical, 825 for this subject
matter in miscellaneous selective systems such as remote
control systems.
Subclass:
172
Including electronic element:
This subclass is indented under subclass 171. Subject matter
wherein electronic devices are utilized.
Subclass:
173
Light:
This subclass is indented under subclass 170. Subject matter
wherein a light responsive element is used to initiate the
operation of the relay or solenoid.
SEE OR SEARCH CLASS:
250, Radiant Energy, 200 for photoelectric cell circuits not
having a relay or solenoid as the last element controlled.
307, Electrical Transmission or Interconnection Systems,
subclass 117 for miscellaneous light responsive switching
systems.
315, Electric Lamp and Discharge Devices: Systems, 149 for
electric lamp and discharge devices with radiant energy
sensitive control means.
330, Amplifiers, subclass 59 for amplifier systems including
light controlled or activated devices.
331, Oscillators, subclass 66 for light responsive devices
combined with oscillators.
Subclass:
174
Light sensor controls its light path:
This subclass is indented under subclass 173. Subject matter
wherein the light sensor controls its own optical system, by
which it is illuminated.
Subclass:
175
Including electronic element:
This subclass is indented under subclass 173. Subject matter
wherein electronic devices are utilized.
Subclass:
176
Plural light sensors:
This subclass is indented under subclass 175. Subject matter
wherein more than one light sensor is included in the control
circuit.
Subclass:
177
Plural light sensors:
This subclass is indented under subclass 173. Subject matter
wherein more than one light sensor is included in the control
circuit.
Subclass:
178
Fluid (e.g., liquid level, humidity):
This subclass is indented under subclass 170. Subject matter
wherein the initiating device or circuit is responsive to the
condition of a fluid (liquid or gas).
(1) Note. The system may, for example, respond to
precipitation, fluid level or flow, humidity of fluid
pressure.
SEE OR SEARCH CLASS:
340, Communications: Electrical, subclass 602 for moisture
or humidity; subclass 604 for wetness; and subclasses 618+
for liquid level alarm systems, respectively.
Subclass:
179
Proximity or contact:
This subclass is indented under subclass 170. Subject matter
wherein the device or circuit which initiates the operation
of the relay or solenoid is responsive to an object coming
very close to or touching the device.
Subclass:
180
Metal presence or absence responsive:
This subclass is indented under subclass 179. Subject matter
wherein the initiating device or circuit responds to the
presence or absence of metal in proximity to or contact with
the device.
Subclass:
181
Capacitance change-type:
This subclass is indented under subclass 179. Subject matter
wherein the initiating device or circuit responds to a change
in capacitance at the detecting electrode.
Subclass:
182
Frequency (e.g., audio, radio):
This subclass is indented under subclass 170. Subject matter
wherein circuits or devices which respond to audio or radio
frequencies are used to initiate the operation of the relay
or solenoid.
SEE OR SEARCH CLASS:
178, Telegraphy, 47 for this subject matter in telegraph
systems.
340, Communications: Electrical, 825 for this subject
matter in miscellaneous communication systems.
Subclass:
183
Plural relays or solenoids as loads:
This subclass is indented under subclass 182. Subject matter
wherein two or more relays or solenoids are controlled by one
or more frequency signals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
191 for plural relay solenoid loads selectively operated.
Subclass:
184
Specific Frequency Responsive Relay:
This subclass is indented under subclass 182. Subject matter
which includes a relay which only operates when excited with
a supply of a predetermined frequency.
Subclass:
185
Phase:
This subclass is indented under subclass 170. Subject matter
wherein a circuit or device which responds to a particular
phase of a current or voltage signal is used to initiate the
operation of the relay.
Subclass:
186
Pulse:
This subclass is indented under subclass 170. Subject matter
wherein a circuit or device which responds to a pulse signal
is used to initiate the operation of the relay.
SEE OR SEARCH THIS CLASS, SUBCLASS:
153 for pulse responsive circuits in drive circuits which
are peculiar to electromagnetic devices.
SEE OR SEARCH CLASS:
329, Demodulators, 311 for pulse demodulators.
340, Communications: Electrical, 825.57 for this subject
matter, especially in miscellaneous communication systems.
Subclass:
187
Voltage or current level discriminators:
This subclass is indented under subclass 170. Subject matter
wherein the initiating device or circuit responds only to a
specific voltage or current level applied to it.
Subclass:
188
Variable impedance:
This subclass is indented under subclass 170. Subject matter
wherein the initiating circuit or device is responsive to
variable impedance values.
Subclass:
189
Plural switches in control circuit:
This subclass is indented under subclass 160. Subject matter
wherein more than one switch is included in the control
circuit, all of which must be operated to initiate the
operation of the relay.
Subclass:
190
Including electronic switch:
This subclass is indented under subclass 189. Subject matter
wherein at least one of the switches in the control circuit
is of the electronic type.
Subclass:
191
Plural relay or solenoid loads selectively operated:
This subclass is indented under subclass 160. Subject matter
including plural relay load circuits which are selectively
operated.
(1) Note. This subclass relates, for example, to selective
systems for selecting any one of plural relays.
SEE OR SEARCH THIS CLASS, SUBCLASS:
171 for this subject matter in code responsive control
circuits.
183 for subject matter wherein two or more relays or
solenoids are controlled by plural frequency signals.
Subclass:
192
Including interlock:
This subclass is indented under subclass 191. Subject matter
wherein the relays or solenoids are interconnected either
electrically or mechanically so that only the selected one or
ones can be maintained in an actuated condition at any given
moment.
Subclass:
193
Electronic interlock:
This subclass is indented under subclass 192. Subject matter
wherein the interlocking of the relays or solenoids is
controlled by electronic circuits or devices.
Subclass:
194
Holding means:
This subclass is indented under subclass 160. Subject matter
having holding means to hold the relay or solenoid in the
operated state, despite the lapsing of the original control
signal.
Subclass:
195
Time delay:
This subclass is indented under subclass 160. Subject matter
wherein circuits or devices are included which initiate the
operation of the relay a predetermined interval of time after
the initiation of a control function.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, 261 and 392+ for miscellaneous timing
and delay circuits, per se.
340, Communications: Electrical, 527 for a condition
responsive signalling system having a time delay circuit.
Subclass:
196
Including semiconductor device connected to timing element:
This subclass is indented under subclass 195. Subject matter
wherein the control circuit includes a semiconductor device
connected between the timing circuit and the relay.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), appropriate subclasses for active
solid-state semiconductor devices, per se.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for
miscellaneous semiconductor circuits and devices.
Subclass:
197
Threshold device (e.g., zener, schockley diode):
This subclass is indented under subclass 196. Subject matter
wherein a semiconductor device conducts current when the
potential applied across it reaches a specific value.
SEE OR SEARCH THIS CLASS, SUBCLASS:
200 and 205, for threshold devices in other control
circuits.
Subclass:
198
Including three or more electrodes (e.g., unijunction):
This subclass is indented under subclass 197. Subject matter
wherein the semiconductor device has three or more
electrodes.
Subclass:
199
Including electric discharge device:
This subclass is indented under subclass 195. Subject matter
wherein the control circuit includes an electric discharge
device connected between the timing circuit and the relay.
SEE OR SEARCH CLASS:
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, appropriate subclasses for
miscellaneous space discharge tube circuits. Also, consult
the main class search notes and the search notes to the
subclasses for a compilation of other classes having related
art.
Subclass:
200
Threshold device (neon tube):
This subclass is indented under subclass 199. Subject matter
wherein the electric discharge device conducts current when
the potential applied across it reaches a specific value.
SEE OR SEARCH THIS CLASS, SUBCLASS:
197 and 205, for threshold devices in other control
circuits.
Subclass:
201
Including thyratron:
This subclass is indented under subclass 200. Subject matter
wherein the threshold device is a thyratron.
SEE OR SEARCH THIS CLASS, SUBCLASS:
256 and 354, for other control circuits utilizing a
thyratron as a threshold device.
Subclass:
202
Electromechanical delay means:
This subclass is indented under subclass 195. Subject matter
wherein the predetermined interval of time required is
controlled by an electromechanical device.
(1) Note. Electromechanical device may be an electric motor
or solenoid with a cam operated switch, or a mechanical
device connected to the relay or solenoid to delay operation
(e.g., a dashpot, escapement mechanism, etc.).
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 59 for electro-magnetically operated
switches with time delay, and subclasses 239+ for
electromagnetic relays with time delay.
Subclass:
203
With oscillator:
This subclass is indented under subclass 160. Subject matter
which includes an oscillator in the control circuit.
SEE OR SEARCH CLASS:
331, Oscillators, appropriate subclass for electric
oscillation generators, per se.
Subclass:
204
With magnetic amplifier or saturable reactor:
This subclass is indented under subclass 160. Subject matter
having a magnetic amplifier or saturable reactor in the
control circuit.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 401
for nonlinear reactor systems.
Subclass:
205
Threshold device (e.g., SCR, thyratron):
This subclass is indented under subclass 160. Subject matter
wherein a threshold device, which conducts current when the
potential applied across it reaches a specific value, is
connected to the coil of the electromagnetic device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
197 and 200+, for threshold devices in time delay control
circuits.
Subclass:
206
Particular relay or solenoid:
This subclass is indented under subclass 160. Subject matter
wherein the electromagnetic device is distinctive
structurally or in its operation.
Subclass:
207
Electrostatic:
This subclass is indented under subclass 206. Subject matter
having electrostatic means.
(1) Note. The electrostatic means may, for example, be a
piezoelectric crystal which is an integral part of a relay
and which is utilized to operate the relay contacts or the
electrostatic means may be in the circuit which actuates the
relay or electromagnet as, for example, an electrostatic dry
clutch which is utilized in a control apparatus in the input
circuit to the relay electromagnet.
Subclass:
208
Polarized:
This subclass is indented under subclass 206. Subject matter
wherein the movement of the armature depends upon the
direction of the current in the control circuit.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 230 for polarized electromagnets with
armatures, per se.
Subclass:
209
Alternating current type:
This subclass is indented under subclass 206. Subject matter
wherein the device is responsive to alternating current
energization.
Subclass:
210
Plural coils:
This subclass is indented under subclass 206. Subject matter
wherein more than one coil is required in its operation.
Subclass:
211
CONTROL CIRCUITS FOR NONELECTROMAGNETIC TYPE RELAY (E.G.,
THERMAL RELAYS):
This subclass is indented under the class definition.
Subject matter relating to control circuits for relays which
utilize means other than electromechanical means to open or
close electrical contacts.
(1) Note. For example, a bimetallic device may be used as
the relay contact making means.
Subclass:
212
DISCHARGING OR PREVENTING ACCUMULATION OF ELECTRIC CHARGE
(E.G., STATIC ELECTRICITY):
This subclass is indented under the class definition.
Subject matter relating to the dissipation of any residual
electric charge present on or in an object or material.
(1) Note. Where the discharge of the static electricity is
combined with the specific features of the art environment,
the search should extend to the class which relates to the
art environment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
117 for high voltage dissipation devices.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 2 for
lightning protection devices such as lightning rods,
subclasses 5+ for electric shock hazard protection devices,
such as guards, and subclasses 6+ for grounding devices.
216, Etching a Substrate: Processes, subclass 6 for etching
in the manufacturing of a capacitor.
320, Electricity: Battery or Capacitor Charging or
Discharging, 127 for discharging a battery and subclasses
166+ for discharging a capacitor, per se.
343, Communications: Radio Wave, subclass 885 for antennas
with a support for the antenna, reflector or director and
having stress distributing or static discharging means for
the support.
Subclass:
213
By charged gas irradiation:
This subclass is indented under subclass 212. Subject matter
relating to the dissipation of a residual electric charge on
or in an object or material using a charged gas.
(1) Note. Radioactive type ionization for dissipating a
residual electric charge is also found in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
229 for this subject matter used in charging an object or
material.
230 for ion generators, per se.
Subclass:
214
Of paper or paper handling machine:
This subclass is indented under subclass 212. Subject matter
relating to the dissipation of electric charge on paper or
paper handling machines.
Subclass:
215
Of storage or hazardous area of fluid handling:
This subclass is indented under subclass 212. Subject matter
relating to the dissipation of the electric charge from
storage or hazardous area or fluid handling.
(1) Note. The electric charge may be eliminated from a
liquid or gas by the provision of a grounding circuit to the
liquid or gas carrying device.
Subclass:
216
Structurally combined with building or vehicle:
This subclass is indented under subclass 212. Subject matter
wherein the dissipating means is attached to or an integral
part of a building or vehicle.
Subclass:
217
With external structure of vehicle:
This subclass is indented under subclass 216. Subject matter
wherein the dissipating means is attached to or an integral
part of the external structure of a vehicle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
220 for specific dissipating devices.
Subclass:
218
Aircraft:
This subclass is indented under subclass 217. Subject matter
wherein the vehicle is an air travel vehicle, e.g.,
airplanes, rockets, balloons, helicopters, etc.
(1) Note. The typical type of dissipator used is the rod
type found in subclass 222.
SEE OR SEARCH THIS CLASS, SUBCLASS:
220 for specific dissipating means.
SEE OR SEARCH CLASS:
244, Aeronautics, subclass 1 for aircraft lightning
arresters and static eliminators.
Subclass:
219
Chain-type grounding means:
This subclass is indented under subclass 217. Subject matter
wherein the electric charge is discharged from the vehicle by
a flexible electroconductive chain-type member which is
connected at one end to the vehicle and at the other end
contacts a ground.
(1) Note. "Chain" in this subclass includes such devices as
chains, cables, flexible rods with attached wheels, etc.
Subclass:
220
Specific conduction means or dissipator:
This subclass is indented under subclass 212. Subject matter
relating to the specific device, material or circuit means
used to effect discharge or prevent the accumulation of
electric charge.
(1) Note. Devices adapted to be held by, attached to, or
touched by a human being are classifiable herein or the
indents hereunder.
Subclass:
221
Brush or roller-type structure:
This subclass is indented under subclass 220. Subject matter
wherein the electric charge dissipator is a brush or roller
means.
Subclass:
222
Rod-type structure:
This subclass is indented under subclass 220. Subject matter
wherein the electric charge dissipator is an elongated
rod-type structure having at least one point type end.
Subclass:
223
Shoe type:
This subclass is indented under subclass 220. Subject matter
wherein the electric charge is dissipated by an electrical
path through the shoes, an attachment to the shoes, or a
covering over the shoes.
SEE OR SEARCH CLASS:
36, Boots, Shoes, and Leggings, for necessary shoe
structure.
Subclass:
224
Integral with shoe:
This subclass is indented under subclass 223. Subject matter
wherein the electric charge is dissipated by electrically
conductive means forming a permanent part of the shoes.
Subclass:
225
ELECTRIC CHARGING OF OBJECTS OR MATERIALS:
This subclass is indented under the class definition.
Subject matter wherein a means or method is provided for
imparting an electrical charge to a material or object.
(1) Note. Where the charging of objects or materials is
combined with the specific features of an art environment,
the search should be made in the class which relates to the
art environment.
SEE OR SEARCH CLASS:
29, Metal Working, see cross-reference art collection 900 for
a method or apparatus for assembly by electrostatic
attraction, which may include a step or mechanism for
imposing an electrostatic charge.
204, Chemistry: Electrical and Wave Energy, especially 164
for preparation of a compound or element through a chemical
reaction brought about by an electrostatic field or
electrical discharge.
205, Electrolysis: Processes, Compositions Used Therein, and
Methods of Preparing the Compositions, appropriate subclasses
for this subject matter when used in electrolysis.
250, Radiant Energy, 324 for subject matter which provides
for impacting an object with gas ions resulting from an
incomplete electrical discharge from an electrode.
310, Electrical Generator or Motor Structure, subclass 316.03
for a piezoelectric element having both mechanical and
electric output having specific circuitry (e.g., capacitor,
coil, combination etc.)to source electrons flowing to or sink
electrons flowing from the piezoelectric element.
320, Electricity: Battery or Capacitor Charging or
Discharging, appropriate subclass for charging a battery or
capacitor.
376, Induced Nuclear Reactions: Processes, Systems, and
Elements, 106 for processes and devices for producing plasma
utilized in thermonuclear reactions.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, subclass 21, 22+,
and 186 for process and apparatus provided by the class using
electrical energy.
Subclass:
226
Particulate matter (e.g., liquids with suspended particles):
This subclass is indented under subclass 225. Subject matter
relating to imparting an electrical charge to minute separate
particles of matter.
(1) Note. This subclass does not include gas charging,
however, included in this subclass is a mixture or solution
of powders which are suspended or entrained in a gas or
liquid.
Subclass:
227
For spray production:
This subclass is indented under subclass 226. Subject matter
wherein the electrical charges are imparted to a spray
material.
(1) Note. Subject matter in which a particular recitation
of a nozzle or spray pattern is emphasized, even though the
spray is electrostatically charged, is beyond this subclass
and should be placed in Class 239, subclass 15.
(2) Note. Subject matter wherein a particular relationship
exists between the spray device and work sprayed upon,
particular movement of the work with respect to the spray
device, or vice versa, are not included in this subclass;
such subject matter can be found in Class 427, subclasses 13+
and Class 118, subclasses 621+.
SEE OR SEARCH CLASS:
118, Coating Apparatus, 621 for electrostatic spray devices
with a specific relationship with respect to the work.
239, Fluid Sprinkling, Spraying, and Diffusing, 690 for
electrostatically charged spray in a particular nozzle or
spray pattern.
427, Coating Processes, 458 for processes of coating per se
utilizing an electrostatic charge.
Subclass:
228
Liquid type:
This subclass is indented under subclass 227. Subject matter
wherein an electrical charge is imparted to a liquid spray
material or powder supported in a stream of liquid material.
Subclass:
229
By charged gas irradiation:
This subclass is indented under subclass 225. Subject matter
relating to imparting an electrical charge to a material or
object using a charged gas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
213 for this subject matter used in discharging a material
or object.
230 for ion generators, per se.
Subclass:
230
ELECTRIC CHARGE GENERATING OR CONDUCTING MEANS (E.G.,
CHARGING OF GASES):
This subclass is indented under the class definition.
Subject matter relating to corona or ion generators which
utilize air or other gases as the charge generating medium to
be placed in contact with the charge generating electrodes or
with the specific electrodes which project the electric field
generated.
(1) Note. This subclass also provides for other electric
charge generating or conducting means not elsewhere provided
for.
SEE OR SEARCH THIS CLASS, SUBCLASS:
213 for discharging of a material or object using a charged
gas.
229 for charging of a material or object using a charged
gas.
SEE OR SEARCH CLASS:
250, Radiant Energy, 423 for ion generation methods and
apparatus in which a material is treated or irradiated.
313, Electric Lamp and Discharge Devices, subclass 54, 62,
and 359.1+ for space discharge device per se for production
of ionized atomic particles. Also, consult the search notes
to these subclasses for related subject matter.
Subclass:
231
Modification of environmental electrical charge:
This subclass is indented under subclass 230. Subject matter
relating to devices or processes for altering or changing the
ambient charge in a definable area or atmosphere.
SEE OR SEARCH CLASS:
96, Gas Separation: Apparatus, 15 for electrostatic-type
precipitators.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 2.1
for processes of weather control utilizing electric charge
generating means.
Subclass:
232
For application to living beings:
This subclass is indented under subclass 230. Subject matter
wherein an electric charge or voltage is produced on a
material or device which will discharge to living beings
causing an electrical shock to be produced in the living
being when it comes into contact with or in close proximity
with the charged or voltage carrying material.
SEE OR SEARCH CLASS:
119, Animal Husbandry, 712, for application of electricity to
an animal to control it, especially subclasses 822 and 908,
and subclass 859 for a collar having a device to apply
electricity to an animal.
231, Whips and Whip Apparatus, subclass 7 for an electrified
goad for controlling the behavior or movement of an animal.
256, Fences, subclass 10 for electric fences.
463, Amusement Devices: Games, subclass 47.3 for a striking
type of weapon for use on a human being which includes an
electric shock feature (e.g., an electric prod used by
police, etc.).
Subclass:
233
Use of forces of electric charge or field:
This subclass is indented under subclass 230. Subject matter
relating to the utilization of the forces of the electric the
utilization of the forces of the electric charge, or the
forces of the electric field generated to perform a
mechanical work function.
Subclass:
234
Pinning:
This subclass is indented under subclass 233. Subject matter
relating to the utilization of the forces generated to effect
the holding or pinning of an object or material on a
surface.
Subclass:
235
With specific power supply:
This subclass is indented under subclass 230. Subject matter
wherein electrical circuitry and means are provided for the
production of a current or voltage which is utilized
specifically for electric charge generation.
(1) Note. To be proper for this subclass, the subject
matter claimed must recite processes or means which are not
provided for in any of the above subclasses. The subject
matter must clearly recite circuitry for use in generating an
electrical charge.
Subclass:
236
ELECTRICAL SPEED SIGNAL PROCESSING SYSTEMS:
This subclass is indented under the class definition.
Subject matter wherein electrical circuitry is provided for
detection of the speed or acceleration of a member, either
angular or linear, and means included in the circuitry
responsive to a change in speed or acceleration to generate a
desired speed or acceleration control signal.
(1) Note. This subclass relates to, for example,
miscellaneous speed sensing and speed responsive systems
having no output which is specific to any particular art.
This subclass relates only to speed controlled
subcombinations; not speed controlled combinations.
(2) Note. Subject matter in which a combination of speed
control circuitry and the device being controlled is claimed,
proper classification is with the device and should not be
placed in this or indented subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
51 for protection of electrical systems against overspeed.
SEE OR SEARCH CLASS:
73, Measuring and Testing, 488 for speed or accelerating
measuring.
178, Telegraphy, appropriate subclasses for telegraph and
television systems having speed responsive means as a part
thereof.
180, Motor Vehicles, 170 as explained in the reference
thereto appearing in Class 361, subclass 51.
290, Prime-Mover Dynamo Plants, subclass 40 for prime-mover
dynamo plants having means to control the speed of the
engine.
318, Electricity: Motive Power Systems, appropriate
subclasses for speed controlled electric motor systems. Note
particularly subclass 806 and 461+.
324, Electricity: Measuring and Testing, 160 for electrical
speed measuring processes and mechanisms.
340, Communications: Electrical, subclass 441 for vehicle
alarms or indicators which are responsive to the speed of the
vehicle, and subclasses 670+ for speed responsive alarms, per
se.
375, Pulse or Digital Communications, 354 for
synchronization.
416, Fluid Reaction Surfaces (i.e., Impellers), 44 for an
impeller having control means responsive to the rotation
speed thereof.
Subclass:
237
With centrifugal weight means:
This subclass is indented under subclass 236. Subject matter
wherein the electrical circuitry includes a centrifugal means
for regulation of the speed of acceleration of a member under
consideration.
SEE OR SEARCH CLASS:
116, Signals and Indicators, subclass 38 for vehicular
governors indication speed and direction.
123, Internal-Combustion Engines, 319 for speed regulators
especially subclasses 350+, 378+, and 402+.
200, Electricity: Circuit Makers and Breakers, 80 for
centrifugally operated speed responsive switches.
318, Electricity: Motive Power Systems, subclass 799 and
462 for centrifugal type automatic speed or rate-of-movement
detectors.
416, Fluid Reaction Surface (i.e., Impellers), 31, especially
subclass 35 for electrical means comparing or reducing an
error responsive to centrifugal action.
Subclass:
238
Antislip detection and circuitry:
This subclass is indented under subclass 236. Subject matter
wherein the electrical circuit contains means for
determination of a loss of traction or loss of rotation
condition.
(1) Note. The property usually measured is acceleration but
is not limited thereto.
(2) Note. The acceleration may be a negative or position
acceleration.
SEE OR SEARCH CLASS:
290, Prime-Mover Dynamo Plants, 9 for electric control
traction devices.
303, Fluid-Pressure and Analogous Brake System, 113.1 for
antiskid systems where brakes are operated.
324, Electricity: Measuring and Testing, subclass 162 for
acceleration measuring means in an electrical speed measuring
device.
Subclass:
239
With speed analog electrical signal:
This subclass is indented under subclass 236. Subject matter
wherein the speed change determining means includes circuitry
for producing an analog signal which has a magnitude
representative of the speed of the member.
SEE OR SEARCH CLASS:
318, Electricity: Motive Power Systems, subclass 830 and
463+ for tachometer type automatic speed or rate-of-movement
de-detectors.
324, Electricity: Measuring and Testing, 163 for speed
measuring means with speed analog electrical signal
generators.
Subclass:
240
Including frequency generators:
This subclass is indented under subclass 236. Subject matter
wherein the electrical circuit includes circuitry in which
the frequency of an A.C. current or the frequency of a D.C.
pulse is representative of the speed of the member.
SEE OR SEARCH CLASS:
322, Electricity: Single Generator Systems, 29 for
generator systems which are responsive to the speed or
frequency of the generator.
324, Electricity: Measuring and Testing, 166 for speed
related frequency generators used to measure speed.
Subclass:
241
Two position (e.g., on-off):
This subclass is indented under subclass 236. Subject matter
wherein the circuitry for generating the control signal
includes a switch which is either on or off.
SEE OR SEARCH THIS CLASS, SUBCLASS:
242 for speed control which includes comparison means.
Subclass:
242
With speed comparison:
This subclass is indented under subclass 236. Subject matter
wherein the electrical circuit contains means for comparing
the generated signal with a reference signal.
SEE OR SEARCH CLASS:
318, Electricity: Motive Power Systems, subclass 820 for
control of the speed of a motor or driven device, with
respect to a master or reference device.
324, Electricity: Measuring and Testing, subclass 161 for
electrical speed measuring with speed comparing means.
Subclass:
243
Synchronization of shafts:
This subclass is indented under subclass 236. Subject matter
wherein the speed control means includes means for
simultaneously controlling the rotation of two or more shafts
in the same or different mechanisms.
SEE OR SEARCH THIS CLASS, SUBCLASS:
242 for speed comparison means which do not require
synchronization means but may disclose such.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, 395 for systems for
synchronizing the rotary motion of a plurality of shafts
where adjustable gearing is utilized to control the rotation
of at least one of the shafts.
91, Motors: Expansible Chamber Type, appropriate subclasses,
and especially subclass 171 for synchronizing plural
expansible chamber motors.
318, Electricity: Motive Power Systems, subclass 41 for
plural electric motor systems having electrical synchronizing
interconnections for maintaining synchronization between the
motors, subclasses 68+ for plural electric motor systems with
means for controlling the running speed of one motor relative
to the speed of another motor including such systems for
maintaining the motors in synchronism, and subclass 85 for
the miscellaneous plural electric motor systems with
synchronizing or phasing control for the motors.
340, Communications: Electrical, subclass 681 for a machine
synchronization responsive indicating device; subclass 318
for miscellaneous signalling systems having synchronized
distributors at the transmitter and receiver.
352, Optics: Motion Pictures, 12 for motion picture
apparatus combined with sound recording or reproducing
apparatus and including means for synchronizing the two.
370, Multiplex Communications, 303 for multiplexing systems
having a rotary distributor.
375, Pulse or Digital Communications, 354 for
synchronization systems.
416, Fluid Reaction Surfaces (i.e., Impellers), subclass 34
for plural impeller having synchronizing means.
Subclass:
244
Phase comparison:
This subclass is indented under subclass 243. Subject matter
wherein the simultaneous rotation of the shaft is controlled
by a phase measuring and comparing means with one of the
shafts or a given phase acting as a reference phase.
Subclass:
245
POLARITY REVERSING:
This subclass is indented under the class definition.
Subject matter relating to the reversing of the polarity of
an electric circuit.
(1) Note. This subclass relates to, for example, the
reversing of polarity under the control of an external
operator, or the reversing of polarity in a continuous
pulsating manner.
SEE OR SEARCH CLASS:
178, Telegraphy, appropriate subclasses particularly subclass
16 for telegraph systems utilizing polarity reversing as an
indication of the intelligence to be transmitted.
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses, particularly 19.06 for electric switches which
can be utilized to reverse polarity.
246, Railway Switches and Signals, appropriate subclasses,
particularly subclass 228, 232 and 242 for railway signalling
systems utilizing polarity reversing as an indication of the
intelligence to be transmitted.
307, Electrical Transmission or Interconnection Systems,
subclass 151 for this subject matter, and subclasses 112+
for miscellaneous switching systems, some of which reverse
polarity.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, subclass 87 for electromagnetically
operated switches which may be utilized to reverse polarity.
363, Electric Power Conversion Systems, appropriate
subclasses for conversion systems. Note subclass 109 for
conversion systems in which direct current is converted into
alternating current by the action of a switch which reverses
the polarity of the output circuit.
Subclass:
246
Automatic:
This subclass is indented under subclass 245. Subject matter
in which the polarity is reversed in accordance with an
automatic control.
Subclass:
247
IGNITING SYSTEMS:
This subclass is indented under the class definition.
Subject matter relating to electrical systems which cause the
rapid combustion of a fuel or the detonation of an explosive
charge.
(1) Note. The subject matter in this subclass does not
include the fuel being ignited or the explosive being
detonated.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, 143 for igniting systems
utilized with internal-combustion engines.
126, Stoves and Furnaces, appropriate subclasses for solid
fuel burners having igniting means.
221, Article dispensing, 143 for article dispensers having
electrical igniting means.
236, Automatic Temperature and Humidity Regulation,
appropriate subclasses for complete heating systems having
igniters as a portion thereof.
431, Combustion, 258 for a fuel burner having an electrical
igniter or heater.
Subclass:
248
For explosive devices:
This subclass is indented under subclass 247. Subject matter
for detonating an explosive device.
(1) Note. Explosive devices include, for example, rockets,
dynamite charges and photoflash devices.
SEE OR SEARCH CLASS:
89, Ordnance, appropriate subclasses for explosive device
projecting or dropping means having igniting means as a part
thereof.
102, Ammunition and Explosives, appropriate subclasses for
explosive devices having igniting means as a portion
thereof.
362, Illumination, 3 for photos:graphic illumination devices
including ignition means.
396, Photography, 155 for photoflash devices combined with
camera structure which may include ignition means.
431, Combustion, 357 for photo-flash devices including
ignition means.
Subclass:
249
With sequential firing by electronic switching:
This subclass is indented under subclass 248. Subject matter
wherein plural explosive devices are ignited in a particular
sequence by electronic switch means.
(1) Note. The electronic switch means includes
nonmechanical devices such as vacuum tubes, transistors,
SCR's, etc.
Subclass:
250
With sequential firing by mechanical switching:
This subclass is indented under subclass 248. Subject matter
wherein plural explosive devices are ignited in a particular
sequence by mechanical switch means.
Subclass:
251
With capacitor discharging into explosive device:
This subclass is indented under subclass 248. Subject matter
wherein an explosive device is ignited by switching a charge
capacitor to discharge into the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
256 and 257, for electric spark ignition by capacitor
discharge.
Subclass:
252
With electromechanical power source:
This subclass is indented under subclass 248. Subject matter
wherein the energy for ignition of the explosive device is
provided by an electromechanical generator.
(1) Note. The electromechanical generator includes dynamos,
magnetos, piezoelectric devices, and other devices wherein
electric power is produced through a mechanical agency.
SEE OR SEARCH THIS CLASS, SUBCLASS:
258 for particular electromechanical power source combined
with electrical spark igniter.
SEE OR SEARCH CLASS:
322, Electricity: Single Generator Systems, appropriate
subclasses for a particular electromechanical power source.
Subclass:
253
For electric spark ignition:
This subclass is indented under subclass 247. Subject matter
wherein the energy for ignition is provided by a system which
generates an electric spark.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, appropriate
subclasses for air gap discharge devices. See 118 for spark
plugs, per se, of the type used in internal combustion
engines. See subclass 53 for flame type discharge devices in
which conduction of electricity takes place through a flame.
315, Electric Lamp and Discharge Devices: Systems,
appropriate subclasses for lamp and gas discharge device
systems. Note, that some of these systems can be used to
energize electric igniters.
Subclass:
254
With electromagnet control means:
This subclass is indented under subclass 253. Subject matter
having electromagnetic means to control the igniter.
(1) Note. The electromagnet might also control the flow of
gas to the igniter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
265 for electromagnet control with incandescent ignition.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 220 for electromagnets with armatures.
336, Inductor Devices, appropriate subclasses for the
structure of inductive devices.
Subclass:
255
Including spark-electrode make-break:
This subclass is indented under subclass 254. Subject matter
wherein an electromagnet causes the spark electrodes to move
either together or apart so as to produce a spark.
SEE OR SEARCH THIS CLASS, SUBCLASS:
261 for particular mechanical arrangements allowing for
electrode movement.
Subclass:
256
With capacitor discharging into sparking transformer:
This subclass is indented under subclass 253. Subject matter
wherein a charged capacitor is switched into circuit with and
discharges into the primary of a transformer thereby inducing
a voltage of sufficient magnitude in the secondary of the
transformer to produce an ignition spark between two spaced
electrodes in the secondary circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
251 for capacitor discharge firing or explosive devices.
257 for capacitor discharge directly into a spark gap to
produce an ignition spark.
Subclass:
257
With capacitor discharge into spark gap:
This subclass is indented under subclass 253. Subject matter
wherein a capacitor is in circuit with spark gap electrodes
such that when the capacitor is sufficiently charged, an
ignition spark will be produced between the electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
251 for capacitor discharge firing of explosive devices.
256 for capacitor discharge into spark transformer to
produce an ignition spark.
Subclass:
258
With electromechanical generator:
This subclass is indented under subclass 253. Subject matter
wherein the energy for electric spark ignition is provided by
an electromechanical generator which converts mechanical
energy into electrical energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
252 for electromechanical generator when used to ignite
explosive devices.
SEE OR SEARCH CLASS:
322, Electricity: Single Generator Systems, appropriate
subclasses for particular electromechanical generator.
Subclass:
259
With permanent magnet:
This subclass is indented under subclass 258. Subject matter
wherein a magnetic field through a coil or transformer due to
a permanent magnet is modulated by the action of mechanical
means so as to induce a sparking voltage across electrodes
connected to the coil or transformer.
Subclass:
260
With piezoelectric element:
This subclass is indented under subclass 258. Subject matter
wherein a piezoelectric crystal is mechanically stressed so
as to produce a sparking voltage across electrodes
appropriately connected to the crystal.
Subclass:
261
With mechanical arrangement for spark-electrode make-break:
This subclass is indented under subclass 253. Subject matter
including spark electrodes which are part of a mechanism
which can be mechanically actuated to cause the electrodes to
move into and out of contact with each other thereby
producing a spark.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 146 for discharge
devices having moveable electrodes.
Subclass:
262
With one spark electrode which is hand held:
This subclass is indented under subclass 253. Subject matter
wherein one of two sparking electrodes is arranged to be hand
manipulated and manually brought into contact with the other
electrode to thereby produce a spark.
(1) Note. Included, for example, an energized electrode
with an insulated handle which can be brought into contact
with a grounded gas burner to produce a spark igniting the
burner.
SEE OR SEARCH CLASS:
431, Combustion, subclass 128 for hand manipulatable
electric igniters for igniting fuel.
Subclass:
263
With spark coil or transformer:
This subclass is indented under subclass 253. Subject matter
wherein the energy for the ignition spark is provided by a
spark coil or transformer connected to the spark electrodes.
(1) Note. "Spark coil" includes induction coils having
make-break contacts in the primary circuit.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for structure
of coil or transformer.
Subclass:
264
For incandescent ignition:
This subclass is indented under subclass 247. Subject matter
wherein a current is passed through an ignition element so as
to heat the element to incandescence thereby causing
ignition.
SEE OR SEARCH CLASS:
123, Internal-Combustion Engines, 145 for an incandescent
igniter combined with an internal-combustion engine.
219, Electric Heating, 260 for incandescent igniting
elements.
Subclass:
265
With electromagnet control means:
This subclass is indented under subclass 264. Subject matter
having electromagnetic means to control the igniter.
(1) Note. The electromagnet may also control the flow of
gas to the igniter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
254 for electromagnet control of electric spark ignition.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, appropriate subclasses for electromagnet
structure.
Subclass:
266
With helical heating element:
This subclass is indented under subclass 264. Subject matter
wherein the incandescent igniter is in the form of a helix or
coil.
Subclass:
267
DEMAGNETIZING SYSTEMS AND PROCESSES:
This subclass is indented under the class definition.
Subject matter including systems and process for neutralizing
a magnetic field.
(1) Note. This subclass includes, for example, processes
for demagnetizing the hair springs of a watch, etc.
(2) Note. Where the demagnetizing is combined with the
specific features of the art environment, the search should
extend to the class which relates to the art environment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
149 for systems and processes for neutralizing the magnetic
field by means of an electromagnetic coil.
SEE OR SEARCH CLASS:
29, Metal working, 602.1 for processes of making permanent
magnets consisting of more than merely demagnetizing and
processes of making electromagnets; also consult the
extensive search notes to this subclass for a compilation of
related subject matter.
114, Ships, subclass 240 for degaussing of ships.
209, Classifying, Separating, and Assorting Solids, subclass
8 for demagnetizing as a step preliminary to classifying,
separating or assorting.
307, Electrical Transmission or Interconnection Systems,
subclass 101 for the control of remnant or residual
magnetism, and subclass 104 for electromagnet and highly
inductive systems.
318, Electricity: Motive Power Systems, subclass 492 for
electric motor systems having means to dissipate the magnetic
energy of the electric motor.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, appropriate subclasses, especially
subclass 284.
365, Static Information Storage and Retrieval, appropriate
subclass for magnetic storage systems including means to
demagnetize the storage medium, 185.01 for floating gate
memory storage (e.g., flash memory).
368, Horology: Time Measuring Systems or Devices, subclass
293 for antimagnetic devices utilized in horology.
Subclass:
268
TRANSFORMERS AND INDUCTORS WITH INTEGRAL SWITCH, CAPACITOR,
OR LOCK (E.G., IGNITION COIL):
This subclass is indented under the class definition.
Subject matter comprising a structural combination of a
transformer or inductor with a switch, capacitor or a lock.
(1) Note. If the switch is solely for the purpose of tap
changing on the transformer or inductor device,
classification is not herein but rather in the appropriate
subclass of Class 336.
(2) Note. This subclass relates, for example, to ignition
coils having integral vibrating switches.
SEE OR SEARCH THIS CLASS, SUBCLASS:
35 for transformer protection circuits.
SEE OR SEARCH CLASS:
216, Etching a Substrate: Processes, subclass 6 for etching
in the manufacturing of a capacitor.
334, Tuners, appropriate subclasses for tuned networks for
use in wave energy apparatus and comprising an inductor
connected to or combined with a capacitor, either the
inductor or capacitor, or both, being variable. The inductor
may also be combined with a switch and for such arrangements,
not especially 56.
336, Inductor Devices, 105 and the notes thereto, for
structural combinations of a transformer or inductive reactor
with other elements such as a connector; see also (1) Note,
above.
363, Electric Power Conversion Systems, 13 for conversion
systems which convert direct current into alternating
current. Some of these conversion systems are analogous to
spark coils.
Subclass:
269
With lock for preventing unauthorized use:
This subclass is indented under subclass 268. Subject matter
provided with locking means to prevent unauthorized use.
(1) Note. Generally the locking means is part of a conduit
or housing means in which the electromagnetic device is
enclosed.
SEE OR SEARCH CLASS:
70, Locks, for locking means, per se. Note, especially 174
for locking means for control and machine elements, and
subclasses 237+ for locking means for automobile vehicles.
174, Electricity: Conductors and Insulators, appropriate
subclass, particularly 17 and 50+ for miscellaneous housings
for single piece of electrical apparatus, some of which
housings may be equipped with locking means.
Subclass:
270
With capacitor element:
This subclass is indented under subclass 268. Subject matter
comprising a transformer or inductive reactor structurally
combined with a capacitor.
(1) Note. If the combined capacitor constitutes an electric
or magnetic shield, classification is not herein but rather
in Class 336, Inductor Devices, subclasses 87+.
(2) Note. The capacitor may be provided to protect the
switch contacts of an ignition coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 and 433+, for capacitors, per se.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 32 for
anti-inductive structures utilized with electrical
conductors. Note, particularly indented subclasses 35+ for
screened or shielded conductors.
333, Wave Transmission Lines and Networks, appropriate
subclasses for electric filter devices comprising the
combination of a transformer or inductive reactor and a
capacitor.
334, Tuners, 59 for a switch operated tuner which is of the
tuned transformer type, the transformer usually being
combined with a lumped capacitor, and subclasses 61+ for
tuners having mutual inductance variable means which may be a
transformer circuit.
336, Inductor Devices, and see (1) Note above.
Subclass:
271
ELECTROSTATIC CAPACITORS:
This subclass is indented under the class definition.
Subject matter relating to an electrostatic capacitor which
is an electrical device having the property that permits
energy storage as a result of electron displacement, usually
consisting of at least two conducting surfaces separated by a
nonconducting medium (i.e., dielectric) such as a gas, liquid
or solid or some combinations thereof.
(1) Note. The term condenser generally used in older
patents is an old term synonymous with the term capacitor.
The same comment applies to armature and electrode.
(2) Note. This subclass includes electrostatic capacitors,
per se. Electrostatic capacitors combined with another art
device or system are classified with the particular art
device or system.
SEE OR SEARCH THIS CLASS, SUBCLASS:
433 for electrolytic capacitors.
SEE OR SEARCH CLASS:
29, Metal Working, 25.41 for miscellaneous methods of
manufacturing capacitors. Also consult the extensive search
notes to subclass 25.41 for a compilation of related art.
216, Etching a Substrate: Processes, subclass 6 for etching
in the manufacturing of a capacitor.
307, Electrical Transmission or Interconnection Systems,
subclass 400 for electrets, per se, and electret systems.
An electret is a permanently polarized dielectric, and
therefore related to a capacitor, which has a transiently
polarized dielectric.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 132 for arc lamps combined with any
capacitor.
315, Electric Lamp and Discharge Devices: Systems, 3 and 32+
for cathode-ray tubes, electric lamps or gas discharge
devices combined with as an integral part of their structure,
a capacitor.
333, Wave Transmission Lines and Networks, appropriate
subclasses for miscellaneous communication type electrical
networks having capacitors as part thereof.
334, Tuners, appropriate subclasses for a variable tuner
comprising an inductor and a capacitor, with the inductor or
capacitor being variable for changing the mean resonant
frequency of the circuit.
341, Coded Data Generation or Conversation, subclass 15 for
capacitive pattern reading type analog to digital
converters.
Subclass:
272
With protection or compensating means:
This subclass is indented under subclass 271. Subject matter
having means to safeguard against breakdowns or to counteract
undesired operating characteristics.
(1) Note. The protective or compensative means is an
integral part of the capacitor structure and significant
details of the capacitor structure must be disclosed.
(2) Note. The protective or compensative means must be
within or a part of the capacitor housing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
15 for capacitors combined with systems for protecting them,
as for example, against lightning surges.
600 for miscellaneous housings, switchboards and analogous
devices for housing or holding two different types of
electrical components, one of which, for example, may be, an
electrical capacitor.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 8 and 50+ for
miscellaneous electrical housings for a single electrical
component, which may be, for example, a capacitor, and
subclasses 140+ for capacitors combined with insulators for
the purpose of distributing the electrostatic stress
uniformly along the insulator.
Subclass:
273
Self-healing:
This subclass is indented under subclass 272. Subject matter
having means to automatically restore to working order, a
malfunctioning capacitor.
(1) Note. This subclass includes, for example, a thin,
metal film electrode which burns or evaporates away around
the point of a puncture without damage to the capacitor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
304 for nonself-supporting electrodes (e.g., metallized).
Subclass:
274.1
Temperature:
This subclass is indented under subclass 272. Subject matter
including means which shield against or make allowance for
variations in the internal heat of the capacitor.
(1) Note. These indented subclasses relate, for example, to
cooling of the capacitor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
676 for housings and mounting assemblies with plural diverse
electrical components for electrical power distribution
systems and devices with means for cooling the same.
688 for electronic systems and devices with cooling means.
SEE OR SEARCH CLASS:
165, Heat Exchange, appropriate subclasses for a heat
exchange structure of a general nature.
174, Electricity: Conductors and Insulators, 15.1 for
miscellaneous boxes and housings for a single piece of
electrical apparatus having means to cool the same.
236, Automatic Temperature and Humidity Regulation,
appropriate subclasses for automatic temperature control
systems.
454, Ventilation, appropriate subclasses for ventilating
devices.
Subclass:
274.2
With fluid cooling means:
This subclass is indented under subclass 274.1. Subject
matter including air or liquid to reduce the temperature of a
capacitor below a specific level.
Subclass:
274.3
With heat sink:
This subclass is indented under subclass 274.1. Subject
matter including means for the absorption or transfer of heat
away from the inner capacitor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
514 for liquid electrolytic capacitor with heat sink.
Subclass:
275.1
For electrical irregularities:
This subclass is indented under subclass 272. Subject matter
wherein the undesired operating characteristics are
unexpected electrical discharge, corona, or short
circuiting.
(1) Note. Excluded are capacitors combined with other
electronic devices unless the sole purpose of the other
electronic device is to protect the capacitor and the device
is an integral part of the capacitor. For example, a
resistor shunt integral with the capacitor structure is found
here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
15 for capacitor protection for preventing current and
voltage surges that are external to the capacitor housing;
details to the capacitor structure are not included.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), subclasses 379-381 and 528-543 for
passive components (e.g., capacitor and resistor) in
integrated chips.
323, Electricity: Power Supply or Regulation Systems,
subclass 370 for plural impedance control systems; in
particular, for capacitor or capacitor combined with a
resistor or inductor control system.
333, Wave Transmission Lines and Networks, 167 for wave
filters; in particular, for capacitors and resistors for
filtering.
Subclass:
275.2
With over-pressure breakaway fuse:
This subclass is indented under subclass 275.1. Subject
matter comprising means composed of an electrical current
conductor having a rated break point in conjunction with a
capacitor winding so that the rated break point breaks due to
mechanical stresses in the conductor caused by over heating
of the capacitor.
Subclass:
275.3
With resistance element:
This subclass is indented under subclass 275.1. Subject
matter comprising means including an element having a
property of a conductor which determines the current produced
by a given difference of potential.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 370 for thermistor or resistor with a capacitor.
338, Electrical Resistors, 296 for helical or wound
resistance element.
Subclass:
275.4
With thermal fuse:
This subclass is indented under subclass 275.1. Subject
matter comprising a fusible alloy strip which melts upon the
overheating of the capacitor thus breaking the electrical
connection between the two ends of the capacitor electrodes.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, 142 for fusible element actuated.
Subclass:
276
Cryogenic:
This subclass is indented under subclass 271. Subject matter
which is intended to function at temperatures near absolute
zero.
SEE OR SEARCH THIS CLASS, SUBCLASS:
19 for superconductive protective circuits.
Subclass:
277
Variable:
This subclass is indented under subclass 271. Subject matter
wherein the capacitance of the capacitor can be altered.
SEE OR SEARCH CLASS:
216, Etching a Substrate: Processes, subclass 6 for etching
in the manufacturing of a capacitor.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), appropriate subclasses for active
solid-state semiconductor devices, per se, especially
subclass 480 for variable capacitance diodes and subclasses
595-602 for active voltage variable capacitance devices.
334, Tuners, 78 for tuners having variable capacitors.
365, Static Information Storage and Retrieval, subclass 102
and 149+ for memory storage capacitors.
Subclass:
278
With significant electrode or terminal feature:
This subclass is indented under subclass 277. Subject matter
having either a distinctive electrode or terminal component.
Subclass:
279
Gas or vacuum dielectric:
This subclass is indented under subclass 277. Subject matter
utilizing a gas or a vacuum as the dielectric within a sealed
housing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
326 for gas or vacuum fixed capacitors.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 8, especially 9
and 17+ for miscellaneous boxes and housings for a single
electrical component in which the housing holds either a
vacuum or a gas.
Subclass:
280
Responsive to external condition:
This subclass is indented under subclass 277. Subject matter
in which the capacitance varies in reaction to an external
condition.
(1) Note. The capacitor is designed specifically to be
responsive to external conditions, for example, a diaphragm
plate sensitive to pressure changes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
311 for particular materials that may be specifically
disclosed as being responsive to conditions.
SEE OR SEARCH CLASS:
307, Electrical Transmission or Interconnection Systems, 116
for condition responsive circuits in switching systems.
324, Electricity: Measuring and Testing, 658 for systems
measuring the capacity of a capacitor, and subclasses 109 and
111+ for electric meters having capacitors.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, 509 for miscellaneous external effect
circuits.
332, Modulators, particularly subclass 136 and 175 for
variable capacitors used in a modulator.
340, Communications: Electrical, 500 for condition
responsive circuits in communication systems.
Subclass:
281
Electrical:
This subclass is indented under subclass 280. Subject matter
in which the external condition is electrical, as for
example, changes in the signal frequency.
Subclass:
282
Thermal:
This subclass is indented under subclass 280. Subject matter
in which the external condition is a thermic condition.
SEE OR SEARCH CLASS:
374, Thermal Measuring and Testing, subclass 184 for an
electric thermometer having a capacitive sensor.
Subclass:
283.1
Pressure:
This subclass is indented under subclass 280. Subject matter
in which the external condition is a force per unit area.
SEE OR SEARCH CLASS:
73, Measuring and Testing, subclass 715, 718, and 724 for
capacitive fluid pressure gauge.
177, Weighing Scales, 210 for capacitor gauges.
381, Electrical Audio Signal Processing Systems and Devices,
subclass 174 for capacitive microphone.
Subclass:
283.2
By displacement of stylus or lever:
This subclass is indented under subclass 283.1. Subject
matter in which the pressure condition is sensed by the
change of position of a mechanical element or linkage which
transmits force to the capacitor.
Subclass:
283.3
By differential capacitor:
This subclass is indented under subclass 283.1. Subject
matter in which the pressure condition is sensed by two
similar sets of fixed plates and one set of movable plates so
arranged that when the movable plate is moved, the
capacitance of one section is increased while the capacitance
of the other section is decreased.
Subclass:
283.4
By diaphragm:
This subclass is indented under subclass 283.1. Subject
matter in which the pressure condition is sensed by a
flexible wall or plate.
Subclass:
284
Liquid level:
This subclass is indented under subclass 280. Subject matter
wherein the capacitance varies in reaction to the height or
level of a liquid.
SEE OR SEARCH CLASS:
73, Measuring and Testing, 304 for capacitive liquid level
gauge.
Subclass:
285
Fluid flow:
This subclass is indented under subclass 280. Subject matter
in which the exterior condition is the flow of a fluid.
Subclass:
286
Humidity:
This subclass is indented under subclass 280. Subject matter
in which the exterior condition is the moisture content of
the surrounding medium.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, 664 for variable
capacitors utilizing sensing elements responsive to
moisture.
Subclass:
287
Mechanically variable:
This subclass is indented under subclass 277. Subject matter
in which the capacitance of the capacitor is mechanically
variable through the application of tangible physical means.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, 10 for the combination of
a capacitor and a dial shaft operator, such as an operator
which can quickly set the capacitor into any one of a
plurality of preselected positions.
Subclass:
288
Push button:
This subclass is indented under subclass 287. Subject matter
in which the mechanical movement is initiated by depressing a
button.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 600
for a capacitive switch, absent circuitry.
307, Electrical Transmission or Interconnection Systems, 116
for a capacitive device controlled switching circuit.
341, Coded Data Generation or Conversion, subclass 33 for a
capacitive keyboard controlled code transmitter.
Subclass:
289
Motor driven:
This subclass is indented under subclass 287. Subject matter
in which the mechanical motion is generated by means for
converting electromagnetic energy to mechanical energy.
SEE OR SEARCH CLASS:
363, Electric Power Conversion Systems, appropriate
subclasses, especially subclass 140 for this subject matter
utilized in electricity conversion systems.
Subclass:
290
By varying distance between electrodes:
This subclass is indented under subclass 287. Subject matter
having means to change the interval between the electrode
plates.
Subclass:
291
Compression type:
This subclass is indented under subclass 290. Subject matter
which is varied by means to squeeze at least a portion of the
electrode plates closer together.
Subclass:
292
By varying effective area of electrode:
This subclass is indented under subclass 287. Subject matter
having means to change the capacitance of the capacitor by
changing the effective area of either the electrode plates or
the dielectric with respect to one another.
Subclass:
293
Disk trimmer:
This subclass is indented under subclass 292. Subject matter
having flat, disk or segment shaped, adjoining electrode
plates.
Subclass:
294
Direct travel piston type:
This subclass is indented under subclass 292. Subject matter
having a conductive piston-like electrode in a slidable
engagement with a dielectric cylinder, said cylinder being
banded by at least one other electrode.
Subclass:
295
Piston trimmer:
This subclass is indented under subclass 292. Subject matter
having a conductive piston-like electrode in a rotary screw
engagement with a dielectric for capacitance adjustment, also
said dielectric being banded by at least one other
electrode.
Subclass:
296
Sliding plates:
This subclass is indented under subclass 292. Subject matter
having electrode plates which variably interleaf in a
rectilinear manner.
Subclass:
297
Spiral or helical plates:
This subclass is indented under subclass 292. Subject matter
in which the electrode plates are made in the forms or
helixes or spirals which variably interleaf.
Subclass:
298.1
Rotary plates:
This subclass is indented under subclass 292. Subject matter
having electrode plates which turn and variably interleaf in
a circular or orbital path about a fixed axis.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, 658 for using
capacitive type measurement.
334, Tuners, 78 for variable capacitor tuner.
Subclass:
298.2
Details of plate feature:
This subclass is indented under subclass 298.1. Subject
matter wherein structural details of an electrode plate are
included.
Subclass:
298.3
Details of dielectric:
This subclass is indented under subclass 298.1. Subject
matter wherein details of the insulating medium are
included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
311 for electrostatic capacitor.
524 for solid electrolytic capacitor.
Subclass:
298.4
Details of electrical connecting means (e.g., terminal or
lead):
This subclass is indented under subclass 298.1. Subject
matter wherein structural details of an electrical connector
which facilitates connection with another conductor such as a
terminal or lead are included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
299.2 for plural capacitor.
306.1 for fixed capacitor.
520 for liquid electrolytic capacitor.
538 for solid electrolytic capacitor.
Subclass:
298.5
With adjustment means:
This subclass is indented under subclass 298.1. Subject
matter including means such as a knob or lever to vary the
effective area of electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
299.4 for rotary plates.
Subclass:
299.1
Plural capacitors:
This subclass is indented under subclass 298.1. Subject
matter consisting of more than one capacitor.
(1) Note. The plural capacitors may, for example, be ganged
on a single shaft.
SEE OR SEARCH THIS CLASS, SUBCLASS:
328 for multiple capacitor.
522 for multiple liquid electrolytic capacitor.
541 for multiple solid electrolytic capacitor.
Subclass:
299.2
Details of electrical connecting means (e.g., terminal or
lead):
This subclass is indented under subclass 299.1. Subject
matter wherein structural details of an electrical connector
which facilitates connection with another conductor such as a
terminal or lead are included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
298.4 for rotary plate.
306.1 for fixed capacitor.
520 for liquid electrolytic capacitor.
538 for solid electrolytic capacitor.
Subclass:
299.3
Details of mounting means:
This subclass is indented under subclass 299.1. Subject
matter including details of means that serve as a support,
mount, or setting.
Subclass:
299.4
With adjustment means:
This subclass is indented under subclass 299.1. Subject
matter including means such as a knob or lever to vary the
effective area of electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
298.5 for rotary plate adjustment means.
Subclass:
299.5
Details of insulator feature:
This subclass is indented under subclass 299.1. Subject
matter wherein details of a structure made of a material of
low electrical conductivity designed for supporting a
conductor, while physically and electrically separating it
from another conductor, are included.
Subclass:
300
With controlling or indicating means:
This subclass is indented under subclass 287. Subject matter
combined with means for regulating or visibly registering the
changes of capacitance.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, 10 for dial shaft
operators, such as, for example, an operator for setting a
capacitor into any one of plural preselected positions.
116, Signals, and Indicators, 241 and 284+ for miscellaneous
indicators for indicating the position of a variable
capacitor.
Subclass:
301.1
Fixed capacitor:
This subclass is indented under subclass 271. Subject matter
wherein the capacitor has a fixed value of capacitance (i.e.,
invariable).
(1) Note. While all fixed capacitors may vary to some
extent because of operating conditions or the ambient
atmosphere, they are still fixed capacitors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
277 for variable capacitors.
Subclass:
301.2
Special shape (e.g., "bypass" type):
This subclass is indented under subclass 301.1. Subject
matter wherein the physical shape of the capacitor is
designed to conform to or fit the physical shape of another
electronic element or device.
Subclass:
301.3
Encapsulated:
This subclass is indented under subclass 301.1. Subject
matter wherein the capacitor is embedded, potted, or molded
in a material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
539 for potted casing of solid electrolytic capacitor.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 52.2
for potted or encapsulated housing.
Subclass:
301.4
Stack:
This subclass is indented under subclass 301.1. Subject
matter consisting of alternate conducting and insulating
planar sheets.
Subclass:
301.5
Wound:
This subclass is indented under subclass 301.1. Subject
matter wherein the capacitor is a spiral of alternate
conducting and dielectric sheets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
321.6 for tubular capacitor.
511 for liquid electrolytic capacitor.
530 for solid electrolytic capacitor.
Subclass:
302
Feed through:
Subject matter under subclasses 301.1+ wherein the capacitor
is of tube or disc type and has a lead through wire.
SEE OR SEARCH THIS CLASS, SUBCLASS:
307 for lead extending into body of capacitor.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 143
for bushing condensers combined.
333, Waves Transmission Lines and Networks, 167 for filters
of RC type.
Subclass:
303
Significant electrode feature:
Subject matter under subclasses 301.1+ with significant
details of the capacitor electrodes.
SEE OR SEARCH CLASS:
427, Coating Processes, 79 for processes of coating
electrodes, utilized in making capacitors.
438, Semiconductor Device Manufacturing: Process,
particularly 386 for methods of making a trench capacitor,
subclasses 393+ for methods of making a planar capacitor, and
subclasses 396+ for methods of making a stacked capacitor
utilizing a semiconductor substrate.
Subclass:
304
Non-self-supporting electrodes:
This subclass is indented under subclass 303. Subject matter
wherein the electrode is non-self-supporting (e.g.,
metallized on a base or liquid electrode).
SEE OR SEARCH THIS CLASS, SUBCLASS:
273 for metallized electrodes in self-healing capacitors.
305 for metallized materials.
SEE OR SEARCH CLASS:
106, Compositions: Coating or Plastic, subclass 1.05 for
metallizing compositions, per se.
Subclass:
305
Material:
This subclass is indented under subclass 303. Subject matter
where significant details of the electrode materials are
involved.
(1) Note. The details of the materials can be alloys,
mixtures or layers of conductive materials. The mere
inclusion of a single conventional electrode material such as
aluminum, tin or copper alone is not a significant detail.
SEE OR SEARCH CLASS:
75, Specialized Metallurgical Processes, Compositions for Use
Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, 122.1 for alloys, per se.
252, Compositions, 512 for electrically conductive metal
compositions.
420, Alloys or Metallic Compositions, alloys, per se.
Subclass:
306.1
Details of electrical connection means (e.g., terminal or
lead):
This subclass is indented under subclass 301.1. Subject
matter wherein structural details of an electrical connector
which facilitates connection with another conductor such as a
terminal or lead are included.
(1) Note. In some cases, the words terminal and lead are
synonymous words meaning the same structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
298.4 for rotary plates capacitor.
299.2 for plural capacitor.
306.1 for fixed capacitor.
520 for liquid electrolytic capacitor.
538 for solid electrolytic capacitor.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 50 for housing
or box terminals.
336, Inductor Devices, subclass 192 for inductor terminals.
338, Electrical Resistors, subclass 322 for resistor
terminals.
427, Coating Processes, 79 for processes of coating
electrodes utilized in making capacitors.
439, Electrical Connectors, appropriate subclasses for
connectors, per se, 607 for condenser connector having
capacitive shield and subclass 620 for filter connectors.
Subclass:
306.2
For decoupling type capacitor:
This subclass is indented under subclass 306.1. Subject
matter wherein the electrical connection means is placed
inside the capacitor to prevent unwanted, harmful
interference from an external source.
SEE OR SEARCH THIS CLASS, SUBCLASS:
403 for printed circuit board mounting pad.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 52.4
for flat housing for electronic devices.
Subclass:
306.3
For multilayer capacitor:
This subclass is indented under subclass 306.1. Subject
matter wherein the electrical connection means is associated
with the capacitor consisting of a plurality of laminae with
each of the laminae including a conductive plate portion and
a nonconductive sheet portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
321.2 for multilayer ceramic capacitor.
Subclass:
307
Lead extends into body of capacitor:
Subject matter under subclasses 306.1+ wherein the lead
extends into the body of the capacitor (e.g., tab type).
(1) Note. For classification in this subclass, the lead
must extend into the electrical portion of the capacitor.
Extension of the lead into the case or housing alone is not
structure proper for this subclass.
Subclass:
308.1
Lead attached to edge of capacitor:
Subject matter under subclasses 306.1+ wherein the lead is
physically attached to the edge or end portion of the
capacitor electrode of an extended foil-type capacitor.
(1) Note. An extended foil capacitor is a capacitor where
the electrodes extend beyond the dielectric for lead
connection.
SEE OR SEARCH THIS CLASS, SUBCLASS:
310 for the lead may be wrapped or extended around the edge
of the capacitor.
Subclass:
308.2
Cap:
This subclass is indented under subclass 308.1. Subject
matter wherein the lead comprises a cup-shaped element.
Subclass:
308.3
Wire:
This subclass is indented under subclass 308.1. Subject
matter wherein the lead comprises a slender, stringlike piece
or filament of metal.
Subclass:
309
Metallized terminal:
Subject matter under subclasses 308.1+ wherein the terminal
is a layer or layers formed by spraying, dipping, etc.,
conductive material to form the terminal.
Subclass:
310
Lead extends around at least a portion of capacitor:
Subject matter under subclasses 306.1+ wherein the lead is
wrapped or extends around the capacitor (e.g., the metal case
of the capacitor is a lead).
Subclass:
311
Solid dielectric:
Subject matter under subclasses 301.1+ wherein the capacitor
has at least one solid dielectric.
(1) Note. The inclusion of an impregnant in fluid form
combined with the solid dielectric is not excluded here.
SEE OR SEARCH CLASS:
106, Compositions: Coating and Plastic, appropriate
subclasses for nonresinous electric insulating material.
252, Compositions, subclass 567 for a web or sheet
impregnated with a designated dielectric liquid.
427, Coating Processes, 79 for processes of coating utilized
in making capacitors.
438, Semiconductor Device Manufacturing: Process,
particularly 386 for methods of making a trench capacitor,
subclasses 393+ for methods of making a planar capacitor, and
subclasses 396+ for methods of making a stacked capacitor
utilizing a semiconductor substrate.
520, Synthetic Resins or Natural Rubbers, for a solid
dielectric composition containing a synthetic resin or
natural rubber.
Subclass:
312
Plural dielectrics:
This subclass is indented under subclass 311. Subject matter
where the solid dielectric is combined with another separate
and distinct dielectric either liquid, solid, or gas.
(1) Note. The separate dielectric may be a distinct portion
of the same dielectric (e.g., plural layers of the same
material).
Subclass:
313
Layered:
This subclass is indented under subclass 312. Subject matter
wherein the plural dielectrics are layered one upon the
other.
(1) Note. Excluded are impregnated capacitors even though
the impregnant is claimed coated on the solid dielectric.
Impregnated capacitors are in subclasses 314+.
Subclass:
314
Impregnated:
This subclass is indented under subclass 312. Subject matter
wherein the additional dielectric is an impregnant.
(1) Note. An impregnant is a gas, liquid, or solid that is
placed into a capacitor to fill air voids.
SEE OR SEARCH THIS CLASS, SUBCLASS:
327 for liquid dielectrics.
Subclass:
315
With specific impregnant:
This subclass is indented under subclass 314. Subject matter
with a specific named impregnant.
Subclass:
316
Including wax:
This subclass is indented under subclass 315. Subject matter
wherein the specific impregnant includes a wax.
SEE OR SEARCH THIS CLASS, SUBCLASS:
317 for wax containing halogen (e.g., halowax).
Subclass:
317
Including halogen (e.g., chlorinated):
This subclass is indented under subclass 315. Subject matter
wherein the impregnant is halogen containing (e.g.,
chlorinated diphenyl).
SEE OR SEARCH CLASS:
252, Compositions, subclass 570 and 581 for halogen
containing dielectrics.
Subclass:
318
With stabilizer or modifying substance:
This subclass is indented under subclass 317. Subject matter
wherein a stabilizer or modifier is added to the dielectric
to improve operating properties of the capacitor.
(1) Note. A stabilizer is used, for example, to prevent
oxidation or to scavenge extraneous products produced during
operation (e.g., hydrogen chloride).
(2) Note. The stabilizer or modifying substance may be
added to the impregnant or the solid dielectric.
Subclass:
319
With stabilizer or modifying substance:
This subclass is indented under subclass 314. Subject matter
wherein a stabilizer or modifier is added to the dielectric
to improve the operating properties of the capacitor.
(1) Note. The stabilizer or modifier may be, for example,
antioxidant or scavenger and be added to the impregnant or
the solid dielectric.
Subclass:
320
Ceramic and glass:
This subclass is indented under subclass 312. Subject matter
wherein the plural dielectric is a ceramic and glass.
(1) Note. The ceramic is usually combined in a glass matrix
or the glass is used as a bonding agent for the ceramic.
SEE OR SEARCH CLASS:
501, Compositions: Ceramic, appropriate subclasses for
ceramic and glass compositions.
Subclass:
321.1
Ceramic, glass, or oxide particles:
This subclass is indented under subclass 311. Subject matter
wherein the solid dielectric is made of clay, frit, or a
compound containing oxygen.
(1) Note. The terms glass, ceramic, or oxide, at times, are
used synonymously in the art.
(2) Note. Also included are vitreous enamels.
SEE OR SEARCH CLASS:
501, Compositions: Ceramic, appropriate subclasses for
ceramic and glass compositions.
Subclass:
321.2
With multilayer ceramic capacitor:
This subclass is indented under subclass 321.1. Subject
matter wherein the capacitor has several thin, parallel
layers of ceramic, glass, or oxide particles each separating
an opposing pair of electrode surfaces.
SEE OR SEARCH THIS CLASS, SUBCLASS:
306.3 for multilayer capacitor.
Subclass:
321.3
Including metallization coating:
This subclass is indented under subclass 321.2. Subject
matter including a thin film pattern of conductive material
on the dielectric to provide interconnection of the capacitor
components or to provide conductive contacts for
interconnections.
Subclass:
321.4
Composition:
This subclass is indented under subclass 321.2. Subject
matter wherein the material of the constituents of the
dielectric is specified.
SEE OR SEARCH THIS CLASS, SUBCLASS:
321.5 for ceramic, glass, or oxide particles.
Subclass:
321.5
Composition:
This subclass is indented under subclass 321.1. Subject
matter wherein the material of the constituents of the
dielectric is specified.
SEE OR SEARCH THIS CLASS, SUBCLASS:
321.4 for multilayer capacitor's ceramic, glass, or oxide
particles.
Subclass:
321.6
With tubular capacitor:
This subclass is indented under subclass 321.1. Subject
matter wherein the capacitor is shaped like a hollow,
elongated cylinder.
Subclass:
322
Oxide film:
Subject matter under subclasses 321.1+ wherein the dielectric
is an oxide film on the capacitor electrode.
(1) Note. The oxide film may have been formed by oxidizing
or anodizing the electrode.
SEE OR SEARCH CLASS:
205, Electrolysis: Processes, Compositions Used Therein, and
Methods of Preparing the Compositions, 80 for anodized
products and processes.
Subclass:
323
Plastic:
This subclass is indented under subclass 311. Subject matter
wherein the solid dielectric is a synthetic polymer (i.e.,
plastic), (e.g., polyethylene, silicone, polypropylene).
Subclass:
324
Fibrous or fabric (e.g., paper, etc.):
This subclass is indented under subclass 311. Subject matter
wherein the solid dielectric is a fibrous or fabric material
(e.g., cellulose paper).
SEE OR SEARCH THIS CLASS, SUBCLASS:
323 for papers made of synthetic materials (e.g., plastic).
SEE OR SEARCH CLASS:
162, Paper Making and Fiber Liberation, subclass 138 for
electrical insulating paper.
Subclass:
325
Mica:
This subclass is indented under subclass 311. Subject matter
wherein the solid dielectric is mica.
(1) Note. The mica may be a synthetic material.
Subclass:
326
Vacuum or gas dielectric:
Subject matter under subclasses 301.1+ wherein the dielectric
is a vacuum, or gas (e.g., compressed air).
(1) Note. Excluded here are gas impregnants which are found
in subclasses 314+.
(2) Note. This subclass is exclusively for fixed capacitors
as defined in subclasses 301.1+ with gas dielectric. Usually
the gas capacitor is in a sealed housing.
(3) Note. Gas by definition includes mixtures of gas
including the ambient air.
SEE OR SEARCH THIS CLASS, SUBCLASS:
279 for variable capacitors with gas or vacuum dielectrics.
SEE OR SEARCH CLASS:
216, Etching a Substrate: Processes, subclass 6 for etching
in the manufacturing of a capacitor.
252, Compositions, subclass 571 for gaseous dielectric
compositions, per se.
Subclass:
327
Liquid dielectric:
Subject matter under subclasses 301.1+ wherein the dielectric
is a liquid.
(1) Note. Excluded are impregnated capacitors which are
found in subclass 314.
SEE OR SEARCH CLASS:
252, Compositions, 570 for liquid dielectric and insulating
compositions.
Subclass:
328
Multiple capacitors:
Subject matter under subclasses 301.1+ wherein there are a
plurality of capacitors.
(1) Note. The plurality of capacitors may be in a single
package (e.g., roll).
(2) Note. Details of the capacitor must be included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for a fixed capacitor combined with a variable
capacitor.
299.1 for plural rotary capacitor.
331 for mounted plural capacitors with no significant
capacitor structure.
SEE OR SEARCH CLASS:
323, Electricity: Power Supply or Regulation Systems,
subclass 364 for plural impedance systems.
Subclass:
329
Distinct physically:
This subclass is indented under subclass 328. Subject matter
wherein the capacitors are separate fixed capacitors.
(1) Note. The capacitors may be of the same type.
Subclass:
330
Shared Electrode:
This subclass is indented under subclass 328. Subject matter
wherein the multiple capacitors are formed with at least one
shared electrode common to two other electrodes.
(1) Note. Also included in this class are float electrodes.
A float electrode is an electrode that is not connected to a
lead but is common to two other electrodes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
272 and 275.1+, for complete search of float electrodes.
SEE OR SEARCH CLASS:
333, Wave Transmission Lines and Networks, subclass 24 for
capacitive coupling networks.
Subclass:
434
Systems (e.g., plural cells, standby exciting voltage):
Subject matter under subclasses 500+ comprising an
electrolytic system not otherwise classified.
(1) Note. This subclass includes, for example, systems of
plural cells arranged in series or in parallel, or to cells
having plural electrodes, some of which are connected to a
source of standby voltage while others of which are connected
to the operating voltage.
(2) Note. The search should extend to the class which
relates to the environment in which the system might be
found.
Subclass:
435
Current interruption type (e.g., circuit breaker,
D.C.-to-pulse converters):
Subject matter under subclasses 500+ of the type which is
utilized for interrupting a circuit.
(1) Note. This subclass relates, for example, to
electrolytic cells which interrupt the current flow through
them when it exceeds a predetermined maximum and to
electrolytic cells which rapidly chop a current that passes
through them.
SEE OR SEARCH CLASS:
200, Electricity: Circuit makers and Breakers, 196, 200+,
and 205+ for fluid type periodic electric switches.
307, Electrical Transmission or Interconnection Systems,
subclass 132 for repetitive make or break type of switching
systems, some of which may utilize an electrolytic
interrupter.
363, Electric Power Conversion Systems, appropriate
subclasses for conversion systems utilizing electrolytic type
interrupters.
Subclass:
436
Rectifiers:
Subject matter under subclasses 500+ for use as rectifiers.
Subclass:
437
MISCELLANEOUS:
This subclass is indented under the class definition.
Subject matter which is not provided for in any of the
preceding subclasses of this class.
Subclass:
500
ELECTROLYTIC SYSTEMS OR DEVICES:
This subclass is indented under the class definition.
Subject matter wherein the conduction of electricity is
accompanied by chemical action.
(1) Note. This and indented subclasses include for example,
electrolytic condensers, interrupters or rectifiers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
122 for this subject matter when used as a high voltage
dissipator or lightening arrester.
SEE OR SEARCH CLASS:
29, Metal Working, 25.01 for the manufacture of the devices
in this and indented subclasses. Also, consult the search
notes to subclasses 25.01+ of Class 29 for a compilation of
the classes that have related art.
136, Batteries: Thermoelectric and Photoelectric,
appropriate subclasses for this subject matter utilized to
produce electricity by electrochemical action.
174, Electricity: Conductors and Insulators, 50 for boxes
and housings useful to encase the electrolytic devices of
this and indented subclasses, and subclasses 140+ for this
subject matter combined with insulators so as to distribute
the voltage stress on the insulator.
204, Chemistry: Electrical and Wave Energy, 194 for
electrolytic devices utilized to produce chemical change,
(e.g., electroplating cells, etc.) and subclasses 400+ for
electrolytic analysis and testing devices (e.g., pH cells,
etc.).
216, Etching a Substrate: Processes, subclass 6 for etching
in the manufacturing of a capacitor.
252, Compositions, subclass 62.2 for electrolytic
compositions for electrical devices, and subclass 62.3 for
barrier layer device compositions.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, subclass 132 for arc lamps having electrolytic
resistance.
320, Electricity: Battery or Capacitor Charging or
Discharging, appropriate subclass for charging or discharging
an electrolytic capacitor or an electrolytic cell.
322, Electricity: Single Generator Systems, subclass 79 for
the control of the generator circuit by the use of
electrolytic impedances.
324, Electricity: Measuring and Testing, 425 for
electrolytic testing systems, (e.g., PH measuring systems).
329, Demodulators and Detectors, subclass 347 for
electrolytic type demodulators or detectors.
338, Electrical Resistors, 80 for mechanically variable
liquid resistors and subclass 222 for fixed value liquid
resistors.
363, Electricity Power Conversion Systems, appropriate
subclasses for rectifying systems utilizing electrolytic
rectifiers.
429, Chemistry: Electrical Current Producing Apparatus,
Product, and Process, appropriate subclasses for battery
electrolytic compositions.
Subclass:
501
Coulometer (i.e., electrochemical timer):
This subclass is indented under subclass 500. Subject matter
including an electrolytic cell for measuring a quantity of
electricity by the chemical action produced.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, 76.11 for
electricity meter, particularly subclass 94 for electrolytic
device.
Subclass:
502
Double layer electrolytic capacitor:
This subclass is indented under subclass 500. Subject matter
including: 1. a pair of paste electrodes, 2. a separator
which functions both as an electronic insulator and a
conductor, and 3. an electrolyte disposed within the pores
of the separator.
Subclass:
503
Liquid electrolytic capacitor:
This subclass is indented under subclass 500. Subject matter
including: 1. an anode, 2. a cathode, 3. a separator or
an insulator which separates the anode and the cathode, and
4. a liquid electrolyte.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 25.03 for the method of making
electrolytic-type device.
Subclass:
504
With significant electrolyte:
This subclass is indented under subclass 503. Subject matter
including significant chemical compositions.
SEE OR SEARCH CLASS:
252, Compositions, 62.2 for the composition of electrolytes
for electrical condensers and rectifiers.
429, Chemistry: Electrical Current Producing Apparatus,
Product, and Process, 188 for battery electrolytes.
Subclass:
505
Salt solute:
This subclass is indented under subclass 504. Subject matter
including a salt material which mixes with or dissolves in a
solvent.
Subclass:
506
Ethylene glycol:
This subclass is indented under subclass 504. Subject matter
including an ethylene glycol material which mixes with or
dissolves in a solvent.
Subclass:
507
With depolarizer:
This subclass is indented under subclass 504. Subject matter
including a chemical used to prevent the formation of
hydrogen bubbles at the positive electrode.
(1) Note. A depolarizer is sued to improve conductivity.
Subclass:
508
Anode type electrode:
This subclass is indented under subclass 503. Subject matter
including a specific anode type electrode structure.
(1) Note. An electrolytic anode type electrode is an
electrode at which negative ions are discharged, or positive
ions are formed, or at which other oxidizing reaction
occurs.
Subclass:
509
Aluminum or tantalum:
This subclass is indented under subclass 508. Subject matter
wherein the anode type electrode is made of aluminum or
tantalum material.
Subclass:
510
Anode riser:
This subclass is indented under subclass 508. Subject matter
wherein significant details of an anode electrical connection
means (e.g., terminal or lead) are disclosed.
Subclass:
511
Wound:
This subclass is indented under subclass 508. Subject matter
wherein the anode type electrode is made by winding foils
together with dielectric material.
(1) Note. The anode type electrode is generally in flat,
rolled, wound or tubular shape.
Subclass:
512
With separator:
This subclass is indented under subclass 511. Subject matter
including at least one separator or spacer between winding
foil electrodes.
Subclass:
513
With mounting means (e.g., anchoring means or clamping):
This subclass is indented under subclass 511. Subject matter
wherein an anchoring means is used for securing the
electrical components within the capacitor housing to prevent
relative movement therebetween.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 50.54 for
means for mounting an electrical device to a box or housing.
313, Electric Lamp and Discharge Devices, 238 for mounting
the electrodes of a lamp or electric space discharge device.
Subclass:
514
With heat conductor (e.g., heat sink):
This subclass is indented under subclass 511. Subject matter
including means to absorb or dissipate heat.
Subclass:
515
With common conductor (e.g., stripline):
This subclass is indented under subclass 511. Subject matter
wherein the wound anode type electrode has a common conductor
or stripline.
(1) Note. A stripline is a form of terminal in which the
ends of the devices winding are brought out to terminal
strips mounted integral with the device form or assembly.
Subclass:
516
Cathode type electrode (e.g., cathode casing):
This subclass is indented under subclass 503. Subject matter
wherein a specific cathode structure is disclosed.
(1) Note. An electrolytic cathode is an electrode at which
positive ions are discharged, or negative ions are formed, or
at which other reducing reaction occur.
(2) Note. Most of the electrolytic cathodes in this
subclass are formed as outer casing of the electrolytic
capacitor assembly.
Subclass:
517
Casing:
This subclass is indented under subclass 503. Subject matter
including specific details of casing which contains the
liquid electrolytic capacitor components.
Subclass:
518
With hermetic seal:
This subclass is indented under subclass 517. Subject matter
wherein the casing of liquid electrolytic capacitor
components is hermetically sealed.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 50 for
hermetic sealed envelope type.
Subclass:
519
With header, cover, or endseal:
This subclass is indented under subclass 517. Subject matter
wherein an open end of the electrolytic capacitor casing is
closed by a header, cover, or endseal.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 52.5
for header, mounting stud.
215, Bottles and Jars, 43, 50+, and 200 for closures for
bottles and jars.
220, Receptacles, 200 for closure for receptacles.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), appropriate subclasses for active
solid-state semiconductor devices, per se, especially 678
for active solid- state device housings, in general.
Subclass:
520
Significant electrical connection means (e.g., terminals or
leads):
This subclass is indented under subclass 519. Subject matter
wherein significant details of electrical connection means
(e.g., terminals or leads) are disclosed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
306.1 for significant details of electrical terminals or
leads.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 50.52 for
electrical terminals or leads.
Subclass:
521
With vent means:
This subclass is indented under subclass 517. Subject matter
including means to release excess pressure occurring within
the casing of electrolytic capacitor components.
SEE OR SEARCH CLASS:
215, Bottles and Jars, 307 for venting bottles and jars.
220, Receptacles, 367.1 for venting in closure.
429, Chemistry: Electrical Current Producing Apparatus,
Product, and Process, 82 venting structure for batteries.
Subclass:
522
Multiple capacitors:
This subclass is indented under subclass 503. Subject matter
including two or more liquid electrolytic capacitors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for a fixed capacitor combined with a variable
capacitor.
299.1 for plural rotary capacitor.
600 for mounted plural capacitor with no significant
capacitor structure.
Subclass:
523
Solid electrolytic capacitor (e.g., dry electrolytic
capacitor):
This subclass is indented under subclass 500. Subject matter
including capacitor in which a dielectric is primarily an
anodized coating on one electrode, with the remaining space
between the electrodes filled with a solid semiconductor, or
paste or gel.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 25.03 for the method of making
an electrolytic-type device.
Subclass:
524
Dielectric:
This subclass is indented under subclass 523. Subject matter
including specific details of the solid dielectric material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
311 for solid dielectric of fixed capacitor.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 25.42 for the method of making a
solid dielectric condenser.
Subclass:
525
With significant electrolyte or semiconductor:
This subclass is indented under subclass 523. Subject matter
including specific details of the solid electrolyte or the
semiconductor material.
Subclass:
526
Paste or gel:
This subclass is indented under subclass 525. Subject matter
including an electrolyte which is a colloidal solution of
liquid in a solid.
SEE OR SEARCH CLASS:
204, Chemistry: Electrical and Wave Energy, subclass 414
for gel electrolyte.
429, Chemistry: Electrical Current Producing Apparatus,
Product, and Process, subclass 134 and 300+ for gel
electrolyte.
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, 98 for colloid systems of continuous or
semicontinuous solid phase with discontinuous liquid phase
(gels, pastes, flocs, coagulates) or agents for such systems
or making or stabilizing such systems or agents, when
generically claimed or when there is no hierarchically
superior provision in the USPC for the specifically claimed
art.
Subclass:
527
Organic salt (e.g., TCNQ):
This subclass is indented under subclass 525. Subject matter
wherein the solid electrolyte or solid semiconductor material
includes an organic salt or TCNQ.
Subclass:
528
Anode type electrode:
This subclass is indented under subclass 523. Subject matter
including a specific anode type electrode structure.
Subclass:
529
Aluminum or tantalum:
This subclass is indented under subclass 528. Subject matter
wherein the anode type electrode is made of aluminum or
tantalum material.
Subclass:
530
Wound:
This subclass is indented under subclass 528. Subject matter
wherein the anode type electrode is made by winding foils
together with dielectric material.
(1) Note. The anode type electrode is generally in flat,
rolled, wound or tubular shape.
Subclass:
531
With lead conductor:
This subclass is indented under subclass 530. Subject matter
including a conductor for connecting the wound electrode to
external conductors.
Subclass:
532
Cathode type electrode:
This subclass is indented under subclass 523. Subject matter
wherein a specific cathode structure is disclosed.
Subclass:
533
With significant lead:
This subclass is indented under subclass 532. Subject matter
wherein a specific conductor structure for connecting the
cathode to an external conductor is disclosed.
Subclass:
534
With protection means:
This subclass is indented under subclass 523. Subject matter
including means to safeguard against breakdown or short
circuiting of the solid electrolytic capacitor.
(1) Note. The protection means is an integral part of the
solid electrolytic capacitor structure and significant
details of the structure must be disclosed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
272 for protection or compensating means for electrostatic
capacitor.
Subclass:
535
Casing:
This subclass is indented under subclass 523. Subject matter
including specific details of the casing which contains the
solid electrolytic capacitor components.
Subclass:
536
With hermetic seal:
This subclass is indented under subclass 535. Subject matter
wherein the casing is hermetically sealed.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 50 for
hermetic sealed enveloped type.
Subclass:
537
With header, cover, or endseal:
This subclass is indented under subclass 535. Subject matter
wherein an open end of the solid electrolytic capacitor
casing is closed by a header, cover, or endseal.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 52.5
for header, mounting stud.
215, Bottles and Jars, 43, 50+, and 200 for closures for
bottles and jars.
220, Receptacles, 200 for closure for receptacles.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), appropriate subclasses for active
solid-state semiconductor devices, per se, especially 678
for active solid- state device housings, in general.
Subclass:
538
Significant electrical connection means (e.g., terminals or
leads):
This subclass is indented under subclass 537. Subject matter
wherein significant details of electrical connection means
(e.g., terminals or lead) are disclosed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
306.1 for significant details of electrical terminals or
leads.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 50.52 for
electrical terminals or leads.
Subclass:
539
With potting:
This subclass is indented under subclass 537. Subject matter
wherein a space between the casing and the electrolytic
capacitor components is occupied by a solid or semisolid mass
of insulating material; or wherein the electrolytic capacitor
components directly encapsulated in a mass of insulating
material in the casing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
600 for plural components which are potted or encapsulated.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 841 and 855+ for process of
conductor or circuit manufacturing involving encapsulating or
potting of electrical components.
174, Electricity: Conductors and Insulators, subclass 52.2
for potting of electrical components, per se.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, 272.11 for processes of encapsulating electrical
components.
336, Inductor Devices, subclass 96 for potted inductor
devices wherein some significant details of the inductor
device is claimed.
338, Electrical Resistors, subclass 269 and 275 for
resistors with molded casings or housings.
Subclass:
540
With terminal:
This subclass is indented under subclass 523. Subject matter
wherein a specific conductor structure for connecting the
solid electrolytic capacitor to external conductors is
disclosed.
Subclass:
541
Multiple capacitors:
This subclass is indented under subclass 523. Subject matter
including two or more liquid electrolytic capacitors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for a fixed capacitor combined with a variable
capacitor.
299.1 for plural rotary capacitor.
600 for mounted plural capacitor with no significant
capacitor structure.
Subclass:
600
HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL
COMPONENTS:
This subclass is indented under the class definition.
Subject matter comprising (a) housings, boxes, panels, or
mounting arrangements with an electrical device, multiple
electrical devices, or diverse electrical components or (b)
housing or mounting arrangements with keyboards, CRTs, disk
drive units, displays, or computer related equipment which
inherently have diverse electrical components.
(1) Note. This subclass includes electrical housing or
mounting assemblies where the combination is not provided for
in any other class or in any other subclass in this class.
(2) Note. Nominal recitation of devices in conjunction with
housings or mounting arrangements, without device structural
details, are classified in this class.
(3) Note. Housing or mounting assemblies in combination
with structural details, functional details, or equipment
descriptions, of a particular art device, are classified with
the art device.
(4) Note. Support equipment or housings for computer and
computer related equipment will be classified in this class,
if nominal recitation of the computer or computer related
equipment is recited with no data processing or calculating
procedures.
(5) Note. The term "computer means" or "data processing
means" will be understood as nominal recitation whenever
claims do not recite details for calculating or data
processing.
(6) Note. Computer related equipment comprises memory unit
or equipment, data processors, data input/output controllers,
data input/output units, and arithmetic units.
(7) Note. Support equipment or housings for disk drives,
keyboards, display units, and CRTs without particular
equipment description or functional detail for a disk drive,
keyboard, display unit, or CRT, will be classified in this
class.
(8) Note. Housings with printed circuit and diverse
electrical components or devices are classified in this
class.
(9) Note. Recitations drawn to integrated circuitry,
semiconductor device or package, silicon chip, hybrid device,
pellet, disk type device, flip chip, etc., without structural
or functional limitations defining topology or details of the
semiconductor devices will be treated as diverse components
and are classified in this class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
115 for specific circuit breaker structure with protection
and safety system or device.
142 for electromagnetic control circuit devices including
housing.
SEE OR SEARCH CLASS:
33, Geometrical Instruments, 568 for gauge work support
adjustment, subclass 572 for gauge probe support, and
subclass 573 for gauge work support.
73, Measuring and Testing, subclass 756 for fluid pressure
gauge mounting and connection.
84, Music, appropriate subclasses for musical instrument(s)
with cases or supports. For instrument supports of general
application not claimed in combination with musical
instruments or structurally limited to use with specific
musical instruments, see Class 248, Supports, appropriate
subclasses.
174, Electricity: Conductors and Insulators, 50 for boxes
and housings with insulator or conductor structure,
subclasses 250+ for printed circuits, per se, and subclass
260 for printed circuit(s) with one component or plural same
components. A printed circuit with diverse components is
classified in Class 361, appropriate subclass.
181, Acoustics, 148 for diaphragm and enclosure, subclasses
171+ for diaphragm mounting or suspension means, and
subclasses 198+ for housing or enclosure of mechanical
sound-modifying means.
200, Electricity: Circuit Makers and Breakers, 5 for
similar type switches arranged in keyboard manner. Class 200
is the generic class for devices having structural detail of
closing or opening electrical circuits. Arrangement of
circuit breakers, mounting of circuit breakers, or housing of
circuit breakers are classified in Class 361, subclasses
600+.
211, Supports: Racks, 71.01 for receptacle support type
racks.
219, Electric Heating, appropriate subclasses for heater-unit
with housing, casing, or support means.
220, Receptacles, subclass 3.9 for outlet or junction box
type receptacle with support.
235, Registers, subclass 145 for support equipment and
housings for keyboards comprising those portions of
registers, usually manually actuated, including key, shift
keys, space bars, etc., which control and initiate the action
of the calculating machine to determine what numbers shall be
introduced and how. Also to control subsidiary operation of
the machine.
248, Supports, 637 for machinery support excluding machinery
structure. If machinery is recited, supports are classified
with the art device.
250, Radiant Energy, subclass 239 for photocell (circuits
and apparatus) housings, subclasses 453.1+ for nonsignalling
objects of irradiation supports and subclass 522.1 for
radiation source supports.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 678 for housing with details to
specific materials, construction or topology of a
semiconductor device, or integrated circuits such as barrier
layer structure, specific semiconductor contact arrangements
and P/N junctions, and subclasses 701+ for insulating support
details in combination with semiconductor device specifics.
Class 257 also provides for housings wherein (a) the housing
is for an active solid state device, details of which are
positively recited in the claims, or (b) wherein the recited
housing is necessary to make a usable active solid state
device whether the active solid state device is recited
nominally or in detail. Otherwise, housing with nominally
recited active solid state active device will be classified
in Class 361. Claims that contain only nominal recitations
of integrated circuitry, semiconductor devices or packages,
silicon chips, hybrid devices, pellets, disk type devices,
flip chip bonds, etc., with no significant structural or
functional details will be classified in Class 361. If a
claim recites significant details of active semiconductor
devices; e.g., specific materials, topological details,
specific contacts, junctions, etc., along with a housing
assembly, in general, the claims will be properly classified
in Class 257. If significant contact structure of an active
semiconductor device is recited, it will be classified in
Class 257.
307, Electrical Transmission or Interconnection Systems, 9.1
for vehicle mounted systems and subclasses 147+ for conductor
arrangements or structure.
310, Electrical Generator or Motor Structure, subclass 42
for rotary dynamoelectric machinery with assembling, metal
casting, or machining feature; subclass 89 for housings,
windows, or covers of rotary dynamoelectric machinery having
mechanical shields or protectors; and subclasses 348+ for
non-dynamoelectric piezoelectric elements and devices with
mounting or support means.
312, Supports: Cabinet Structure, appropriate subclasses for
supports or cabinet with nonreceptacle feature (e.g., door,
shelf, or partition); 7.1 for enclosures or cabinets without
radio and television devices, per se; and subclass 20 for
picture machine or film type device supports. Radio and
television mount including electrical structure are
classified in Classes 455 and 358, respectively.
313, Electric Lamp and Discharge Devices, 364 for support
equipment and housings with CRTs having structural or
functional CRT detail.
314, Electric Lamp and Discharge Devices: Consumable
Electrodes, 130 for electric lamp and discharge devices
(consumable electrodes) frames and electrode supports.
318, Electricity: Motive Power Systems, subclass 17 for
portable-mounted motor and/or portable-mounted electrical
motive power systems.
322, Electricity: Single Generator Systems, subclass 1 for
a portable mounted single generator system.
331, Oscillators, 68 for oscillators with outer casing or
housing.
334, Tuners, subclass 85 for tuners with shielding or
housing means.
336, Inductor Devices, 65 for inductor devices with mounting
or supporting means, subclasses 90+ for inductors with outer
casing or housing, subclass 195 for coil supported within
grooved or hollow coil conductor of another coil, and
subclasses 199+ for coil or coil turn supports.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 34 for electrothermally actuated switches
with space discharge having housings or support means and
subclasses 112+ for electrothermally actuated switches
housing or support means.
338, Electrical Resistors, 315 for resistor with mounting or
support means.
340, Communications: Electrical, subclass 391 for audible
diaphragm with supports; subclasses 700+ for (a) support
equipment and housings with selectable display units having
structural display unit detail or (b) support equipment and
housings with keyboards in conjunction with CRTs or
selectable display units having structural detail of
keyboard, CRT or display unit; subclass 814.14 for visual
indicator (switchboard or panel type housings); and
subclasses 815.15+ for visual indicator with lamp enclosed in
housing.
341, Coded Data Generation or Conversion, 20 for support
equipment and housings with keyboards having a control
element which an operator physically contacts to control the
transmission or generation of a coded set of pulses.
342, Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation), appropriate subclass
for housing or support of directive radio wave system having
directive radio wave structural details.
343, Communications: Radio Wave Antennas, subclass 702 for
antenna with radio cabinet; subclasses 872+ for antenna with
housing or protective covering; and subclasses 878+ for
antenna with support for antenna, reflector or director.
346, Recorders, subclass 41 for recorder with case cover,
case cover key, or keyhole cover; subclass 144 for watchman's
or workman's key enclosing box; and subclass 145 for recorder
with instrument support.
348, Television, 273 for a television camera with housing or
support and subclasses 787+, 789, and 836+ for a television
projection or display device with cabinet or chassis
structure. Television cabinet with no electrical limitation
is classifierd in Class 312, subclass 7.2.
351, Optics: Eye Examining, Vision Testing and Correcting,
appropriate subclass for rim mounts, semi-rim mounts, rimless
mounting supports, and eye testing instrument supports.
352, Optics: Motion Pictures, 34 for motion pictures
(having sound accompaniment) with houses and supports,
subclass 197 for camera and/or projector drive mechanisms
with supporting structure, subclass 231 for motion picture
gates with lens mounting, subclass 242 for motion picture
with housing, and subclass 243 for motion picture with
support.
353, Optics: Image Projectors, appropriate subclass for
image projectors with case, cabinet, or housing.
355, Photocopying, 122 for photocopying frames.
356, Optics: Measuring and Testing, 244 for optical
measuring and testing holder or support.
359, Optics: Systems (Including Communication) and Elements,
appropriate subclass for optic system or element having
supporting, mounting, or enclosing. House or support for
diverse electrical components and optical components will be
classified in Class 359, appropriate subclass.
360, Dynamic Magnetic Information Storage or Retrieval,
subclass 86 for support equipment and housing of disk record
having record transport with head moving during transducing
and structural details of disk record, subclasses 97.01+ for
support equipment and housing of disk record having record
transport with head stationary during transducing and
structural details of disk record, subclasses 104+ for
recorder head mounting, and subclass 129 for recorder head
accessory housing.
362, Illumination, appropriate subclass for light source with
support, holder, casing, or housing.
363, Electric Power Conversion Systems, 144 for current
conversion system with conductive support mounting and
subclass 146 for current conversion system encased in lug
housing.
364, Electrical Computers and Data Processing Systems,
appropriate subclasses for computer, per se.
365, Static Information Storage and Retrieval, appropriate
subclass for support equipment and houses with static memory
having structural details of memory.
367, Communications, Electrical: Acoustic Wave Systems and
Devices, subclass 173 for underwater signal transducer with
support and subclass 188 for signal transducer receiver with
casing or housing.
368, Horology: Time Measuring Systems or Devices, subclass
88 for chronological device with casing or mount and
subclasses 276+ for time measuring device with cases.
369, Dynamic information Storage or Retrieval, subclass 6
for storage or retrieval device having structural details
combined with radio, including cabinet details, and
subclasses 75.1+ for storage or retrieval device having
storage or retrieval structural details with particular
cabinet structure.
372, Coherent Light Generators, subclass 107 for resonant
cavity with mirror support.
373, Industrial Electric Heating Furnaces, 128 for
resistance furnace device with mount.
374, Thermal Measuring and Testing, 208 for thermal
measuring and testing device with housing or support.
378, X-Ray or Gamma Ray Systems or Devices, 193 for X-ray or
gamma ray with source supports.
379, Telephonic Communications, 325 for telephonic
centralized switching system with housing, subclasses 428+
for telephone terminal with housing and subclasses 454+ for
telephone terminal with accessory or auxiliary equipment with
support or stand.
380, Cryptography, 52 for electrical signal modification
device with support or housing.
381, Electrical Audio Signal Processing Systems and Devices,
322 for electrical hearing aids with casing or housing,
subclasses 361+ for microphone with mounting or support
feature, subclasses 386+ for electro-acoustic audio
transducer with mount or support feature, and subclasses 386+
for electro-acoustic transducer with mount.
396, Photography, appropriate subclasses for photos:graphic
support, mount, rest, or housing.
439, Electrical Connectors, subclass 2 for interrelated
connectors relatively movable during use having antivibration
mounting and subclasses 278+ for connector having resilient
housing. Connector in conjunction with diverse electrical
components are classified in Class 361. See Class 439
Definition, section VI. Index and Miscellaneous Class Notes
for line between Class 174 and Class 439.
455, Telecommunications, subclass 90 for transceiver with
enclosure or support means, subclass 128 for transmitter with
casing or housing and subclasses 347+ for receiver or
frequency converter with cabinet, housing, or chassis
structure.
Subclass:
601
For electrical power distribution systems and devices:
This subclass is indented under subclass 600. Subject matter
comprising a structural mounting arrangement for electrical
components that divide and deliver electric energy among
several electrical devices.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclasses for high tension conductor and insulator
arrangements.
307, Electrical Transmission or Interconnection Systems,
appropriate subclass for electrical interconnection systems.
Subclass:
602
Distribution station (i.e., substation):
This subclass is indented under subclass 601. Subject matter
comprising a building or an outdoor location having plural
distribution units that transform, convert, or control
electric energy in a power system.
(1) Note. Outdoor stations may be above or below ground
level.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for high tension conductor and insulator
arrangements.
Subclass:
603
Having transformer:
This subclass is indented under subclass 602. Subject matter
wherein the distribution station (substation) includes an
electrical device which changes voltage in direct proportion
to the number of turns of its primary and secondary
windings.
SEE OR SEARCH THIS CLASS, SUBCLASS:
620 for electrical switchgear housings or mounting assembly
with transformer.
623 for electrical power distribution systems housings and
mounting assemblies with distribution or control unit
combined with a transformer.
663 for electrical service meter housing or mounting
assembly with transformer.
836 for electrical housing and mounting assembly with
transformer.
Subclass:
604
Gas insulated:
This subclass is indented under subclass 602. Subject matter
wherein the distribution units are separated from conducting
bodies by means of a fluid that has neither independent shape
nor volume, but tends to expand indefinitely.
SEE OR SEARCH THIS CLASS, SUBCLASS:
612 for electrical power switchgear housings and mounting
assemblies with gas insulated busbar arrangements.
Subclass:
605
Electrical switchgear:
This subclass is indented under subclass 601. Subject matter
comprising an aggregate of switching facilities for a power
station or transforming station.
SEE OR SEARCH THIS CLASS, SUBCLASS:
828 for switch or switchboard associated with wire
distribution means.
832 for switch or switchboard associated with frame.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclass for circuit breaker structure, per se.
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, appropriate subclass for electromagnetic
circuit breakers.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclass for thermally actuated circuit
breakers.
Subclass:
606
Truck type:
This subclass is indented under subclass 605. Subject matter
wherein the switchgear comprises heavy duty draw-out
apparatus carried by a carriage with wheels.
Subclass:
607
With interlock:
This subclass is indented under subclass 606. Subject matter
wherein a mechanism is provided for (a) governing or
controlling an operation of a switch or (b) controlling
insertion or withdrawal of a draw-out carriage.
SEE OR SEARCH THIS CLASS, SUBCLASS:
609 for interlock means in drawer-type switchgear.
615 for interlock in electrical switchgear, per se.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 50.01 for
interlocking, per se.
Subclass:
608
Drawer type:
This subclass is indented under subclass 605. Subject matter
wherein the switchgear comprises components on a sliding box
or receptacle that is opened by pulling out and closed by
pushing in, combined with an enclosure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
725 for cabinet-type housings with removable chassis.
730 for modules in a housing.
Subclass:
609
With interlock:
This subclass is indented under subclass 608. Subject matter
wherein a mechanism is provided for (a) governing or
controlling an operation of switch or (b) controlling
insertion or withdrawal of the drawer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
607 for interlock means in truck-type switchgear.
615 for interlock in electrical switchgear, per se.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 50.17 for
draw-out type switchgear with an interlock means between the
cover and the switch.
Subclass:
610
Pivoted support means:
This subclass is indented under subclass 605. Subject matter
wherein the switchgear components are located on support or
holding means that contain a shaft or pin which allows
switchgear components to turn.
SEE OR SEARCH CLASS:
439, Electrical Connectors, subclass 261 for connector
having coupling part with actuating means urging contact to
move laterally with respect to rest of coupling part and
toward mating port combined with pivotable means.
Subclass:
611
Busbar arrangements:
This subclass is indented under subclass 605. Subject matter
wherein heavy copper straps or bars are used (a) to carry
high currents or (b) to make a common connection between
several circuits having specific structural order or
relationship.
SEE OR SEARCH THIS CLASS, SUBCLASS:
624 for distribution or control unit housing or mounting
assembly with busbars.
637 for busbar arrangements on panel boards.
648 for busbar arrangements on panel boards in distribution
boxes.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for busbar arrangements, per se.
Subclass:
612
Gas insulated:
This subclass is indented under subclass 611. Subject matter
wherein a composition primarily adapted for preventing the
flow of electricity through busbars is a fluid that has
neither independent shape nor volume, but tends to expand
indefinitely.
Subclass:
613
Liquid insulated:
This subclass is indented under subclass 611. Subject matter
wherein a composition primarily adapted for preventing a
transfer of electricity through busbars is a fluid
characterized by free movement of the constituent molecules
among themselves, but without the tendency to separate.
Subclass:
614
With plural removable control units in housing:
This subclass is indented under subclass 611. Subject matter
wherein the busbars are located in an enclosure which
contains several separable units that divide and deliver
electric energy among other electrical devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
648 for busbar arrangements on panel boards in distribution
boxes.
SEE OR SEARCH CLASS:
312, Supports: Cabinet Structure, appropriate subclass for
cabinet housings, per se.
Subclass:
615
With interlock:
This subclass is indented under subclass 605. Subject matter
wherein the switchgear contains means for either preventing
operation of a switch or for preventing movement of
particular switch elements on their associated supports.
(1) Note. As an example, the switch operating handle might
be latched in the off position until the switch unit is fully
inserted on its housing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
607 for interlock means in truck-type switchgear.
609 for interlock means in drawer-type switchgear.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 42.01 and
43.01+ for switches with unauthorized use prevention means
and subclasses 50.17+ for switchgear with switch interlock
mechanisms.
Subclass:
616
Door or cover type:
This subclass is indented under subclass 615. Subject matter
wherein the interlock means is actuated or controlled by a
swinging or sliding barrier of the switchgear.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 50.17 for
draw-out switchgear with cover and switch interlock means.
Subclass:
617
Shutter type:
This subclass is indented under subclass 615. Subject matter
wherein the interlock means is in the form of a sliding guard
or shutter which physically closes off connecting apertures
to the switchgear contacts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
607 for draw-out type interlocks which comprise shutters.
Subclass:
618
Gas insulated:
This subclass is indented under subclass 605. Subject matter
wherein an electrical switchgear material that prevents
possible future contact of adjacent conductors resulting in a
short circuit is a fluid having neither independent shape nor
volume but tending to expand indefinitely.
SEE OR SEARCH THIS CLASS, SUBCLASS:
604 for distribution station housing or mounting assemblies
with gas insulated switches.
619 for electrical switchgear housing or mounting assembly
with gas insulated circuit breaker.
Subclass:
619
Having gas circuit breaker:
This subclass is indented under subclass 605. Subject matter
wherein the electrical switchgear comprises circuit
interrupting devices having surfaces separated by a fluid
having neither independent shape nor volume, but tending to
spread out and occupy the entire enclosure in which it is
placed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
618 for electrical switchgear housing or mounting assembly
with gas insulated switchgear.
Subclass:
620
Having transformer:
This subclass is indented under subclass 605. Subject matter
wherein the electrical switchgear is combined with an
electrical device which changes voltage in direct proportion
to the ratio of the number of turns of its primary and
secondary windings.
SEE OR SEARCH THIS CLASS, SUBCLASS:
603 for electrical power distribution station housings
having a transformer.
623 for distribution or control unit housings or mounting
assemblies with transformer.
663 for electrical service meter housing or mounting
assembly with transformer.
836 for electrical housing or mounting assembly with
transformer.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclass for transformer,
per se.
Subclass:
621
Having isolating switch:
This subclass is indented under subclass 605. Subject matter
wherein the electrical switchgear comprises a device intended
to separate an electric circuit from the power source with no
interrupting rating and intended to be operated only after
the circuit has been opened by some other means.
Subclass:
622
Distribution or control unit:
This subclass is indented under subclass 601. Subject matter
wherein components that divide and deliver electric energy
among several electrical devices are mounted on or in a
support unit with an enclosure.
Subclass:
623
Having transformer:
This subclass is indented under subclass 622. Subject matter
wherein the distribution or control unit is combined with an
electrical device which changes voltage in direct proportion
to the ratio of the number of turns of its primary and
secondary windings.
SEE OR SEARCH THIS CLASS, SUBCLASS:
603 for electrical power distribution station housing with
transformer.
620 for electrical switchgear housings or mounting assembly
with transformer.
663 for electrical service meter housing or mounting
assembly with transformer.
836 for electrical housing or mounting assembly with
transformer.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclass for transformer.
Subclass:
624
Having busbar arrangement:
This subclass is indented under subclass 622. Subject matter
wherein the distribution or control unit contains heavy
copper straps or bars used (a) to carry high currents or (b)
to make a common connection between several circuits with
specific relationship or order.
SEE OR SEARCH THIS CLASS, SUBCLASS:
611 for electrical switchgear housings or mounting
assemblies with busbar arrangements.
637 for busbar arrangements on panel boards.
648 for busbar arrangements on panel boards in distribution
boxes.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for busbar arrangements, per se.
Subclass:
625
Portable:
This subclass is indented under subclass 622. Subject matter
wherein the distribution or control unit is capable of being
easily carried or moved about.
Subclass:
626
Having fuse or relay:
This subclass is indented under subclass 622. Subject matter
wherein the distribution or control unit contains a
protective device, usually a short piece of wire, but
sometimes a chemical compound, that melts and breaks the
circuit when a current exceeds a rated value or an
electromechanical device in which contacts are opened and/or
closed by a variation in condition of one electric circuit
and thereby affect an operation of other devices in same or
other electric circuits.
Subclass:
627
Distribution or control panel board:
This subclass is indented under subclass 601. Subject matter
comprising a mounting plate of metal or insulation for
mounting electrical power distribution or control devices and
having no enclosure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
644 for panel boards which are mounted in an electrical
service or distribution box.
748 for printed circuits with diverse components.
Subclass:
628
With switches and fuses:
This subclass is indented under subclass 627. Subject matter
wherein the panel mounted distribution or control board
comprises (a) mechanical or electrical devices that complete
or break the path of current or send a current over a
different path and (b) protective devices, usually short
pieces of wire but sometimes chemical compounds, that melt
and break a circuit when a current exceeds a rated value.
SEE OR SEARCH THIS CLASS, SUBCLASS:
646 for panel mounted fuses and/or manually operated
switches which are mounted in an electrical service or
distribution box.
828 for a switch associated with a wire distribution means.
832 for a switch associated with a frame.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 237 for
switch structure, per se.
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 4 for fuse structure, per se, and
subclasses 8+ for a fusible element with a manually operated
switching device.
Subclass:
629
Unit block:
This subclass is indented under subclass 628. Subject matter
wherein the fuses or switches are packaged in separate
support sets and the dimension for each support set is the
same.
SEE OR SEARCH THIS CLASS, SUBCLASS:
646 for a panel mounted fuse support means that is mounted
in an electrical service or distribution box.
647 for a panel mounted switch support means that is mounted
in an electrical service or distribution box.
833 for fuse blocks of unit construction.
Subclass:
630
With fuses:
This subclass is indented under subclass 627. Subject matter
wherein the panel mounted distribution or control board
comprises protective devices, usually short pieces of wire
but sometimes chemical compounds, that melt and break a
circuit when a current exceeds a rated value.
SEE OR SEARCH THIS CLASS, SUBCLASS:
628 for panel mounted switches and fuses.
646 for panel mounted fuse support means mounted in an
electrical service or distribution box.
833 for fuse blocks of unit construction.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 4 for fuse structure, per se.
Subclass:
631
With switches:
This subclass is indented under subclass 627. Subject matter
wherein the panel mounted distribution or control board
comprises manually operated mechanical or electrical devices
that complete or break a path of current or send it over a
different path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
628 for panel mounted switches and fuses.
647 for panel mounted fuse switch support means mounted in
an electrical service or distribution box.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 237 for
electric switch structure details, per se.
Subclass:
632
With switch actuating arrangements:
This subclass is indented under subclass 631. Subject matter
wherein a toggle or spring is provided to move the switch.
Subclass:
633
Plugboards:
This subclass is indented under subclass 627. Subject matter
wherein the panel board is provided with a plurality of
conductors or busbars that are connected together by use of
removable plug-like members.
SEE OR SEARCH THIS CLASS, SUBCLASS:
652 for circuit breaker arrangements housed in an electrical
distribution box.
673 for circuit breaker supports, per se.
SEE OR SEARCH CLASS:
379, Telephonic Communications, subclass 332 for telephone
centralized switching system including plug and socket.
439, Electrical Connectors, 43 for plugboard structure, per
se.
Subclass:
634
With circuit breaker arrangements:
This subclass is indented under subclass 627. Subject matter
comprising a sequence or relationship of electromechanical
circuit interrupting devices having separable contacts on the
panel board.
SEE OR SEARCH THIS CLASS, SUBCLASS:
652 for circuit breaker arrangement in a service
distribution box.
673 for circuit breaker supports, per se.
Subclass:
635
With discriminating means:
This subclass is indented under subclass 634. Subject matter
wherein the circuit breaker arrangement comprises structure
which prevents free-interchange ability of different size
circuit breakers.
(1) Note. This is commonly done by circuit breaker
projections which can be inserted only into selected board
apertures.
Subclass:
636
Plug-in or removable:
This subclass is indented under subclass 634. Subject matter
wherein the circuit breakers can be easily installed or
removed from support equipment.
(1) Note. Plug-in connections can be completed through
pins, plugs, jacks, sockets, receptacles, or other ready
connectors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
640 for distribution or control panel board with busbar or
conductor arrangements and having removable or plug-in
connector.
656 for electric service distribution box including panel
board with plug-in circuit breakers.
Subclass:
637
Busbar or conductor arrangements:
This subclass is indented under subclass 627. Subject matter
wherein the distribution or control panel board comprises
specific support structure for heavy copper straps or bars
used (a) to carry high currents or (b) to make common
connections between several circuits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
611 for busbar arrangements in electrical switchgear.
624 for distribution or control unit housing or mounting
assembly with busbar arrangement.
648 for busbar arrangement in a distribution box.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for busbar supports, per se.
Subclass:
638
U-shaped member:
This subclass is indented under subclass 637. Subject matter
wherein the busbar arrangement is (a) configured like a
letter U or (b) connected to a member configured like a
letter U or (c) supported by a member configured like a
letter U.
SEE OR SEARCH THIS CLASS, SUBCLASS:
649 for electric service distribution panel board with
busbar arrangement and having a U-shaped member.
Subclass:
639
With horizontal busbar:
This subclass is indented under subclass 637. Subject matter
wherein a heavy copper strap or bar used to carry high
currents is parallel to the panel board base structure.
Subclass:
640
With removable or plug-in connection:
This subclass is indented under subclass 637. Subject matter
wherein electrical devices can be easily installed or removed
from support equipment.
(1) Note. Plug-in connections can be completed through
pins, plugs, jacks, sockets, receptacles, or other ready
connectors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
636 for distribution or control panel board with circuit
breaker arrangements and having plug-in or removable circuit
breakers.
656 for electric service distribution box including panel
board with plug-in circuit-breakers.
Subclass:
641
Electric service distribution box:
This subclass is indented under subclass 601. Subject matter
comprising a housing for low voltage switching and power
regulation.
(1) Note. The housing is usually a rectangular box with a
hinged door adapted to be mounted on or in a wall.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 52.1 for
housing with electric apparatus having no specific art
limitations.
220, Receptacles, appropriate subclass for metal containers,
per se.
Subclass:
642
With fuse:
This subclass is indented under subclass 641. Subject matter
wherein the electric service distribution box contains a
protective device, usually a short piece of wire but
sometimes a chemical compound, which melts and breaks a
circuit when a current exceeds a rated value.
Subclass:
643
With switch:
This subclass is indented under subclass 641. Subject matter
wherein the housing contains a mechanical or electrical
device that completes or breaks the path of current or sends
the current over a different path.
Subclass:
644
Including panel board:
This subclass is indented under subclass 641. Subject matter
wherein the housing includes a mounted plate of metal or
insulation for a control of other parts of electrical
equipment.
SEE OR SEARCH THIS CLASS, SUBCLASS:
627 for distribution or control panel boards.
Subclass:
645
Adjustable panel:
This subclass is indented under subclass 644. Subject matter
wherein means are provided to modify a position of the panel
within the housing.
Subclass:
646
With fuse support means:
This subclass is indented under subclass 644. Subject matter
wherein the panel board has structure capable of supporting a
protective device, usually a short piece of wire but
sometimes a chemical compound, which melts and breaks a
circuit when a current exceeds a rated value.
SEE OR SEARCH THIS CLASS, SUBCLASS:
630 for panel mounted fuses, per se.
642 for electric service distribution boxes with a fuse.
Subclass:
647
With switch support means:
This subclass is indented under subclass 644. Subject matter
wherein the panel board has structure capable of supporting a
mechanical or electrical device that completes or breaks a
path of current or sends it over a different path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
631 for panel mounted switches, per se.
643 for electric service distribution boxes with switch.
Subclass:
648
Busbar arrangements:
This subclass is indented under subclass 644. Subject matter
wherein the panel supports specific structure for a heavy
copper strap or bar used (a) to carry high currents or (b) to
make a common connection between several circuits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
611 for busbar arrangements in electrical switchgear.
624 for enclosed distribution or control unit housing or
mounting assembly with busbars.
637 for panel boards with no enclosure containing busbars.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for busbar supporting arrangements, per se.
Subclass:
649
U-shaped member:
This subclass is indented under subclass 648. Subject matter
wherein the busbar is (a) configured like a letter U or (b)
connected to a member configured like a letter U or (c)
supported by a member configured like a letter U.
SEE OR SEARCH THIS CLASS, SUBCLASS:
638 for distribution or control panel board with busbar or
conductor arrangements and having a U-shaped member.
Subclass:
650
Spaced parallel relationship:
This subclass is indented under subclass 648. Subject matter
wherein the busbars are arranged extending, in the same
direction, everywhere equidistant and having space separating
the busbars.
Subclass:
651
Panel board corner mountings:
This subclass is indented under subclass 644. Subject matter
wherein an electrical device is mounted adjacent to
intersecting edges or sides of a panel board within the
housing.
Subclass:
652
Circuit breaker supporting arrangements:
This subclass is indented under subclass 644. Subject matter
comprising particular mounting for circuit interrupting
devices on the electric service distribution panel board.
SEE OR SEARCH THIS CLASS, SUBCLASS:
634 for circuit breakers supported on distribution or
control panel board.
Subclass:
653
With discriminating means:
This subclass is indented under subclass 652. Subject matter
wherein the circuit breaker arrangement comprises structure
which prevents free-interchange ability of different size
circuit breakers.
(1) Note. This is commonly done by circuit breaker
projections which can be inserted only into selected board
apertures.
SEE OR SEARCH THIS CLASS, SUBCLASS:
635 for circuit breaker arrangements supported on
distribution or control panel boards having discriminating
means.
Subclass:
654
With tamper prevention means:
This subclass is indented under subclass 652. Subject matter
wherein a particular support or mechanism is provided to
prevent unauthorized access to the circuit breakers.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, subclass 110 for
circuitry that combats attempts to cause a meter to read
inaccurately.
Subclass:
655
Having two row arrangement:
This subclass is indented under subclass 652. Subject matter
wherein the circuit breakers are arranged in two lines or
rows.
Subclass:
656
With plug-in circuit breakers:
This subclass is indented under subclass 652. Subject matter
wherein the circuit breakers can be easily installed or
removed from support equipment.
(1) Note. Plug-in connections can be completed through
pins, plugs, jacks, sockets, receptacles, or other ready
connectors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
636 for distribution or control panel board with circuit
breaker arrangements and having plug-in or removable circuit
breakers.
640 for distribution or control panel board with busbar
arrangement and having plug-in connector.
Subclass:
657
With removable member:
This subclass is indented under subclass 641. Subject matter
wherein the electric service distribution box contains a
support part that can be taken away or off.
Subclass:
658
With plastic enclosure or support:
This subclass is indented under subclass 641. Subject matter
wherein the electric service distribution box includes a
surrounding or support part whose substance is any of
numerous organic synthetic or processed materials that are
mostly thermosetting polymers of high molecular weight and
that can be molded, cast, extruded, drawn, or laminated into
objects, films, or filaments.
Subclass:
659
For electricity service meter:
This subclass is indented under subclass 601. Subject matter
comprising boxes, housings or miscellaneous structures
specifically for mounting or housing an electric measuring
apparatus.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, 74 for electric
meters having significant electric meter structure. Note,
particularly subclass 110 for electric meters having
protective and fraud combating means, other than casings and
housing; subclass 149 for electric meters having probes,
prods, or terminals; and subclass 156 for electric meter with
measuring structure having casing.
Subclass:
660
Plural:
This subclass is indented under subclass 659. Subject matter
comprising two or more meters.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, subclass 114 for
plural electric meters having significant measuring
structure.
Subclass:
661
With meter circuit controller:
This subclass is indented under subclass 659. Subject matter
comprising means for regulating a current through a meter
circuit.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses for switches, per se.
324, Electricity: Measuring and Testing, 115 for electric
meters having plural ranges, scales, or registration rates,
such as multirange instruments, and subclass 149 for electric
meter having probes, prods, or terminals.
439, Electrical Connectors, appropriate subclasses for
electrical connectors, per se.
Subclass:
662
Bypass arrangement:
This subclass is indented under subclass 661. Subject matter
comprising means to close a conducting path when the meter is
in a disconnected condition.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 51 for
circuit makers and breakers combined with or actuated by
connector coupling.
Subclass:
663
With transformer or circuit breaker:
This subclass is indented under subclass 661. Subject matter
wherein the meter circuit controller comprises (a) an
electrical device which changes voltage in direct proportion
to a number of turns of its primary and secondary windings or
(b) a device for interrupting a circuit under normal or
abnormal conditions by means of separable contacts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
603 for electrical power distribution station housing having
a transformer.
620 for electrical switchgear housing or mounting assembly
with a transformer.
623 for distribution or control unit housings or mounting
assemblies with a transformer.
863 for electrical housing or mounting assembly with a
transformer.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclass for transformer,
per se.
Subclass:
664
Meter mounting arrangements:
This subclass is indented under subclass 659. Subject matter
wherein specific structure is provided to mount or support
the electricity service meter (a) to another structure or (b)
within a housing.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, subclass 149 for
electric meters having probes, prods, or terminals and
subclass 156 for electric meter having casings.
Subclass:
665
Adaptable meter supports:
This subclass is indented under subclass 664. Subject matter
wherein the meter support structure is adjustable or
adaptable to support meters of different sizes on or in a
same support.
Subclass:
666
Retractable or detachable meter support:
This subclass is indented under subclass 664. Subject matter
wherein (a) the meter support structure supports the meter in
a position other than in its normally located position or (b)
the meter support structure has separable or detachable
parts.
(1) Note. This subject matter includes, for example,
pivoting means to move the meter to more than one position.
Subclass:
667
Removable cover:
This subclass is indented under subclass 664. Subject matter
wherein a cover, top, or lid of the meter can be easily taken
away or off.
Subclass:
668
Meter terminal and connector arrangements:
This subclass is indented under subclass 659. Subject matter
wherein an electrical interconnecting structure external to
the meter has a particular order or relationship.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, subclass 149 for
electric meters having terminals, prods, or connectors.
439, Electrical Connectors, appropriate subclasses for
electrical connectors having housing or terminal enclosures.
Subclass:
669
Terminal block:
This subclass is indented under subclass 668. Subject matter
comprising an insulating base or slab equipped with one or
more electrical connection points for the purpose of making
electrical connections thereto.
SEE OR SEARCH THIS CLASS, SUBCLASS:
822 for terminal blocks with plural components.
SEE OR SEARCH CLASS:
439, Electrical Connectors, 884 for terminal blocks, per
se.
Subclass:
670
Contact blade receiving structure:
This subclass is indented under subclass 668. Subject matter
comprising a female receptacle support for male meter
blades.
SEE OR SEARCH CLASS:
439, Electrical Connectors, appropriate subclass for blade
receiving structure, per se.
Subclass:
671
Adjustable or adaptable contacts:
This subclass is indented under subclass 668. Subject matter
wherein means are provided to (a) mount contacts or
electrical junction points in a plurality of positions or (b)
mount a plurality of separate discrete contacts or electrical
junction points.
(1) Note. The contacts included are both the meter blade
contacts and the female receptacle contacts.
Subclass:
672
Tamper resistant:
This subclass is indented under subclass 659. Subject matter
comprising a housing or support that prevents unauthorized
access to the meter or a terminal.
SEE OR SEARCH CLASS:
324, Electricity: Measuring and Testing, subclass 110 for
electrical circuitry that combats attempts to cause the meter
to read inaccurately.
Subclass:
673
Circuit breaker supporting means (i.e., attaching, mounting,
etc.):
This subclass is indented under subclass 601. Subject matter
comprising structural means for attaching a circuit
interrupting device having separable contacts to a support or
mount.
SEE OR SEARCH THIS CLASS, SUBCLASS:
634 for circuit breakers on panel boards.
652 for circuit breakers on panel boards within a service
distribution box.
SEE OR SEARCH CLASS:
248, Supports, appropriate subclass for supports, per se.
Subclass:
674
For ballast elements:
This subclass is indented under subclass 601. Subject matter
comprising a housing specifically for electrical diverse
devices that provide a starting voltage or stabilizing
current in a circuit with electronic-discharge lamps.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 52.1 for
housings having electrical devices including ballast
component or plural same ballast component.
315, Electric Lamp and Discharge Devices: Systems,
subclasses 56-63 for electric discharge type devices.
336, Inductor Devices, subclass 96 for potted inductor
devices and search subclasses 105 and 107 for inductor
devices combined with a connector.
362, Illumination, appropriate subclass for illumination type
signal devices.
Subclass:
675
Bus duct:
This subclass is indented under subclass 601. Subject matter
comprising a protective tube or pipe used for supporting
busbar structure.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for bus duct structure, per se.
Subclass:
676
With cooling means:
This subclass is indented under subclass 601. Subject matter
comprising means for dissipating heat produced by the power
distribution systems or devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
687 for computer support equipment with cooling means.
688 for cooling means with electronic apparatus.
SEE OR SEARCH CLASS:
165, Heat Exchange, appropriate subclass for cooling means,
per se.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 712 for solid-state devices having
solid-state device structural details combined with cooling
means.
Subclass:
677
Fluid:
This subclass is indented under subclass 676. Subject matter
wherein the cooling means is provided by a substance tending
to flow or conform to an outline of its container.
SEE OR SEARCH THIS CLASS, SUBCLASS:
689 for fluid cooling means in electronic apparatus.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for the fluid cooling of conductors.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 712 for solid-state devices having
solid-state structural details combined with cooling means.
Subclass:
678
Air:
This subclass is indented under subclass 677. Subject matter
wherein a mixture of an invisible, odorless, and tasteless
gas (as nitrogen and oxygen that surrounds the earth) is the
fluid cooling means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
690 for air cooling means in electronic apparatus.
704 for thermal conductor which dissipates heat into the
air.
Subclass:
679
For electronic systems and devices:
This subclass is indented under subclass 600. Subject matter
comprising housings or mounting assemblies specifically for
electronic systems and devices not provided for elsewhere.
(1) Note. Support equipment and housings for disk drives,
keyboards, display units and cathode-ray tubes (CRTs) without
structural detail or particular equipment description for
disk drive, keyboard, display unit, or CRT will be classified
in this subclass.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, 5 for
similar type switches arranged in a keyboard manner.
235, Registers, subclass 145 for keyboard support equipment
and housings comprising those parts of registers, usually
manually actuated (including keys, shift-keys, and space
bars) which control and initiate the action of the
calculating machine to determine what numbers shall be
introduced and how; also to control subsidiary operation of
the machine.
313, Electric Lamp and Discharge Devices, 364 for CRT
support equipment and housings having structural CRT detail.
340, Communications: Electrical, 700 for (a) support
equipment and housing with display units having structural
display unit detail or (b) support equipment and housings
with keyboards in conjunction with CRTs and selectable
display units having structural detail of keyboard, CRT, or
selectable display unit.
341, Coded Data Generation or Conversion, 20 for keyboard
support equipment and housings having a control element which
an operator physically contacts to control the transmission
or generation of a coded set of pulses and subclass 27 for
keyboard support equipment and housings having structural
keyboard detail and give an indication of key operation which
may be heard or felt by the operator.
Subclass:
680
Including keyboard support:
This subclass is indented under subclass 679. Subject matter
wherein (a) at least one electronic device is a portion of a
terminal used to generate a character stream to a computer or
other communication device combined with housing or mounting
arrangement or (b) at least one electronic device has key
input means combined with housing or mounting arrangement.
(1) Note. This subclass provides for only nominal
recitation of a keyboard.
SEE OR SEARCH CLASS:
178, Telegraphy, subclass 17 for automatic transmitter or
recorder with keyboard.
200, Electricity: Circuit Makers and Breakers, 5 for
similar type switches arranged in keyboard manner.
235, Registers, 145 for keyboards comprising those parts of
registers, usually manually actuated, including key,
shift-keys, space bars, etc., that control and initiate the
action of the calculating machine to determine what numbers
shall be introduced and how; also to control subsidiary
operation of the machine.
312, Supports: Cabinet Structure, appropriate subclass for
keyboard supports or furniture without a keyboard.
340, Communications: Electrical, 706 for keyboard in
conjunction with CRTs or selectable display units having
structural details of a keyboard, CRT, or selectable display
unit.
341, Coded Data Generation or Conversion, 22 for (a)
keyboards having a control element which an operator
physically contacts to control the transmission or generation
of a coded set of pulses or (b) keyboards with structural
detail and give an indication of key operation which may be
heard or felt by an operator.
400, Typewriting Machines, 472 for keyboard or key lever
actuating mechanism.
Subclass:
681
This subclass is indented under subclass 679. Subject matter
wherein at least one electronic device presents information
in visual form combined with housing or mounting
arrangement.
(1) Note. This subclass provides for only nominal
recitation of a display.
SEE OR SEARCH CLASS:
40, Card, Picture, or Sign Exhibiting, appropriate subclass
for display information by print or paint on boards, viewers,
labels, or tags.
109, Safes, Bank Protection or a Related Device, 10 for
safety partitions and display partitions.
178, Telegraphy, subclass 15 for automatic photos:graphic
recorder.
217, Wooden Receptacles, appropriate subclass for boxes
having compartments with displays.
248, Supports, 917 for video display screen support.
273, Amusement Devices: Games, appropriate subclass for
games with display.
296, Land Vehicles: Bodies and Tops, appropriate subclass
for bodies with advertising and displaying.
312, Supports: Cabinet Structure, 114 for showcase type
supports.
313, Electric Lamp and Discharge Devices, appropriate
subclasses for light sources, per se.
324, Electricity: Measuring and Testing, 74 for digital
meters.
340, Communications: Electrical, 700 for support equipment
and housing for display units having structural or functional
display unit detail.
342, Communications: Directive Radio Wave Systems and
Devices (e.g., Radar, Radio Navigation), appropriate subclass
for radar display systems.
345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems, subclasses
467-472 for character font generation and subclasses 326+
for operator interface processing.
346, Recorders, 17 for recorder combined with nonrecording
indicator.
348, Television, 825 for functional detail of a cathode-ray
tube combined with support equipment.
352, Optics: Motion Pictures, subclass 87 for
photos:graphic recording or animation.
359, Optics: Systems (Including Communication) and Elements,
330 for liquid crystal display support having optical liquid
crystal details.
362, Illumination, 227 for plural light sources in general
lighting uses.
368, Horology: Time Measuring Systems or Devices,
appropriate subclass for displays of time.
395, Information Processing System Organization, 101 for
computer s:graphics and control of data presentation with
creation or manipulation of s:graphic objects or text
performed by a computer or processor.
396, Photography, subclass 550 for photoelectronic type
photocomposing systems.
400, Typewritng Machines, 83 for displaying
typewriter-formed representation of print-line.
434, Education and Demonstration, 365 for displaying
educational material.
463, Amusement Devices: Games, for game apparatus in which a
display is included.
473, Games Using Tangible Projectile, for game apparatus used
for a game which uses a tangible projectile and in which a
display is included.
707, Data Processing: Database and File Management, Data
Structures, or Document Processing, subclasses 500-542 for
document processing performed by a computer for
presentation.
Subclass:
682
CRT support:
This subclass is indented under subclass 681. Subject matter
wherein at least one electronic device is a vacuum tube in
which its electron beam can be focused to a small cross
section on a luminescent screen and can be varied in position
and intensity to produce a visible pattern combined with
housing or mounting arrangement.
(1) Note. This subclass provides for only nominal
recitation of a CRT.
SEE OR SEARCH CLASS:
204, Chemistry: Electrical and Wave Energy, 192.1 for
cathode-ray tube coating, forming, or etching by sputtering.
312, Supports: Cabinet Structure, appropriate subclass for
cathode-ray tube furniture without cathode-ray tube.
313, Electric Lamp and Discharge Devices, 364 for
cathode-ray tube, per se.
315, Electric Lamp and Discharge Device: Systems, 1 for
cathode-ray tube circuits, per se.
324, Electricity: Measuring and Testing, 121 for measuring,
testing, or sensing using a cathode-ray tube.
340, Communications: Electrical, 720 for cathode-ray tube
display system having structural or functional details of
display system.
347, Incremental Printing of Symbolic Information, 226 for
radiation marking using cathode-ray tube.
348, Television, 825 for functional detail of a cathode-ray
tube combined with support equipment.
358, Facsimile, subclass 485 for facsimile having
cathode-ray tube scanning.
386, Television Signal Processing for Dynamic Recording or
Reproducing, 42 and 128+ for photos:graphic television
recording, particularly subclass 130 for cathode-ray tube.
430, Radiation Imagery Chemistry: Process, Composition, or
Product Thereof, 23 for process of producing cathode-ray
tube.
434, Education and Demonstration, subclass 307 for cathode
ray screen display and audio means in education and subclass
323 for cathode ray screen display included in examining
means of question or problem eliciting response.
445, Electric Lamp or Space Discharge Component or Device
Manufacturing, 36 for manufacturing process of cathode-ray
tube.
Subclass:
683
Computer related support:
This subclass is indented under subclass 679. Subject matter
wherein (a) at least one electronic device is a data
processor or calculator combined with housing or mounting
arrangement or (b) at least one electronic device is a
component of a data processor or calculator combined with
housing or mounting arrangement.
(1) Note. This subclass provides for only nominal
recitation of computer or computer component.
SEE OR SEARCH CLASS:
312, Supports: Cabinet Structure, appropriate subclass for
computer furniture without a computer or computer component.
364, Electrical Computers and Data Processing Systems,
appropriate subclass for computer, per se.
Subclass:
684
Memory unit support:
This subclass is indented under subclass 683. Subject matter
wherein at least one electronic device is a computer
component that stores information combined with housing or
mounting arrangement.
(1) Note. This subclass provides for only nominal
recitation of memory unit.
SEE OR SEARCH CLASS:
345, Computer Graphics Processing, Operator Interface
Processing and Selective Visual Display Systems, 418 for
computer s:graphics processing.
360, Dynamic Magnetic Information Storage or Retrieval,
appropriate subclass for magnetic information storage, per
se.
365, Static Information Storage and Retrieval, 1 for
magnetic bubbles, per se; subclasses 185.01+ for floating
gate memory storage (e.g., flash memory); subclasses 45+ for
analog storage systems, per se; subclasses 49+ for
associative memories, per se; and subclasses 94+ for read
only systems, per se.
368, Horology: Time Measuring Systems and Devices, subclass
111 for electrical time device with electronic memory
storage.
369, Dynamic Information Storage or Retrieval, appropriate
subclass for dynamic information storage, per se.
395, Information Processing System Organization, 80 for data
processing of robot control systems.
704, Data Processing: Speech Signal Processing, Linguistics,
Language Translation and Audio Compression/Decompression,
200 for artificial intelligence
systems that process speech signals.
706, Data Processing: Intelligent Processing Systems and
Methods, various subclasses for artificial intelligence
systems that represent, apply, and acquire knowledge.
714, Error Detection/Correction and Fault Detection/Recovery,
718 for diagnostic memory testing and subclasses 1+ for
reliability and availability in a digital data processing
system.
Subclass:
685
Disk drive support:
This subclass is indented under subclass 684. Subject matter
wherein at least one electronic component is a device that
rotates a storage medium, writes data onto it, and reads data
from it as instructed by a program combined with housing or
mounting arrangement.
(1) Note. This subclass provides for only nominal
recitation of a disk drive unit.
SEE OR SEARCH CLASS:
360, Dynamic Magnetic Information Storage or Retrieval, 97.01
for floppy disk player, per se.
369, Dynamic Information Storage or Retrieval, 100 for
optical or compact disk players, per se, and subclasses
275.1+ for optical or compact disks, per se.
Subclass:
686
Input/output device support:
This subclass is indented under subclass 683. Subject matter
wherein at least one electronic component (a) provides a
means of communication between the computer and other
electrical equipment or (b) provides a means of communication
between two or more computers, combined with housing or
mounting arrangement.
(1) Note. This subclass provides for only nominal
recitation of an input-output device.
SEE OR SEARCH CLASS:
700, Data Processing: Generic Control Systems or Specific
Applications, subclasses 1-89 for data processing control
systems, methods, or apparatus, per se.
Subclass:
687
With cooling means:
This subclass is indented under subclass 683. Subject matter
wherein the computer related support equipment includes means
for dissipating heat from computer components.
SEE OR SEARCH THIS CLASS, SUBCLASS:
274.1 for protecting against or compensating for variations
in internal temperatures of capacitors.
676 for cooling means in power distribution systems and
devices.
688 for cooling means with electronic apparatus.
SEE OR SEARCH CLASS:
165, Heat Exchange, appropriate subclasses for heat exchange,
per se.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 712 for solid-state devices with
cooling means.
Subclass:
688
With cooling means:
This subclass is indented under subclass 679. Subject matter
wherein the electronic system or device comprises means for
dissipating heat from electronic components.
SEE OR SEARCH THIS CLASS, SUBCLASS:
274.1 for protecting against or compensating for variations
in internal temperatures of capacitors.
676 for cooling in power distribution systems and devices.
687 for computer support equipment with cooling means.
SEE OR SEARCH CLASS:
165, Heat Exchange, appropriate subclasses for heat exchange,
per se.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 712 for solid-state devices having
solid-state structural details combined with cooling means.
Subclass:
689
Fluid:
This subclass is indented under subclass 688. Subject matter
wherein the cooling means is provided by a substance tending
to flow or conform to an outline of its container.
SEE OR SEARCH THIS CLASS, SUBCLASS:
677 for fluid cooling in power distribution systems and
devices.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 252
for the fluid cooling of conductors.
257, Active Solid-State Diodes (e.g., Transistors,
Solid-State Diodes), 712 for solid-state devices having
solid-state structural details combined with fluid cooling
means.
Subclass:
690
Air:
This subclass is indented under subclass 689. Subject matter
wherein a mixture of invisible, odorless, and tasteless gas
(as nitrogen and oxygen that surround the earth) is the fluid
cooling means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
678 for air cooling means in power distribution systems and
devices.
704 for thermal conductor which dissipates heat into the
air.
Subclass:
691
Pressurized or conditioned:
This subclass is indented under subclass 690. Subject matter
wherein the air has (a) an applied force other than natural
forces or (b) humidity and temperature control.
SEE OR SEARCH CLASS:
62, Refrigeration, 56 for refrigeration processes, per se.
Subclass:
692
Plural openings:
This subclass is indented under subclass 690. Subject matter
wherein the cooling means has two or more vents that allow
air circulation.
SEE OR SEARCH CLASS:
454, Ventilation, appropriate subclass for ventilation, per
se.
Subclass:
693
Circular:
This subclass is indented under subclass 692. Subject matter
wherein the plural openings for air intake or exhaust are
structured in small circular shapes.
Subclass:
694
With air circulating means:
This subclass is indented under subclass 690. Subject matter
wherein the cooling means comprises specific means for air
movement.
Subclass:
695
Fan or blower:
This subclass is indented under subclass 694. Subject matter
wherein the cooling means comprises a device that consists of
a series of vanes radiating from a hub rotated on its axle by
a motor.
Subclass:
696
With heat exchanger unit:
This subclass is indented under subclass 695. Subject matter
wherein the cooling means comprises a device that transfers
warmth from one fluid to another without allowing them to
mix.
SEE OR SEARCH THIS CLASS, SUBCLASS:
701 for liquid cooling system with heat exchanger unit.
SEE OR SEARCH CLASS:
165, Heat Exchange, appropriate subclasses for heat exchange,
per se.
Subclass:
697
With heat sink or cooling fins:
This subclass is indented under subclass 695. Subject matter
wherein the cooling means comprises (a) a mass of metal added
to a device for an absorption or transfer of heat from
critical electrical parts or (b) a metal disk or a thin
projecting metal strip attached to a semiconductor to
dissipate heat.
Subclass:
698
And liquid:
This subclass is indented under subclass 690. Subject matter
wherein the fluid comprises (a) the air and (b) a substance
characterized by free movement of constituent molecules among
themselves but without tendency to separate.
Subclass:
699
Liquid:
This subclass is indented under subclass 698. Subject matter
wherein the fluid comprises a substance characterized by free
movement of constituent molecules among themselves but
without tendency to separate.
Subclass:
700
Change of physical state:
This subclass is indented under subclass 699. Subject matter
wherein the liquid (a) changes to a gas (vapor) or (b)
changes from a gas (vapor) to liquid.
Subclass:
701
With heat exchange unit:
This subclass is indented under subclass 689. Subject matter
wherein the cooling means comprises a device that transfers
warmth from one fluid to another without allowing them to
mix.
SEE OR SEARCH THIS CLASS, SUBCLASS:
696 for air cooling system with fan or blower having a heat
exchanger unit.
SEE OR SEARCH CLASS:
165, Heat Exchange, appropriate subclasses for heat exchange,
per se.
Subclass:
702
With cold plate or heat sink:
This subclass is indented under subclass 689. Subject matter
wherein the cooling means comprises the fluid and (a) a mass
of metal that is added to a device for absorption or transfer
of heat from critical electrical parts or (b) a plate or bar
that transfers heat from critical electrical parts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
709 for thermal conduction through support means having heat
sinks.
711 for thermal conduction through support means having a
cooling plate or bar.
Subclass:
703
With cooling fins:
This subclass is indented under subclass 689. Subject matter
wherein the cooling means comprises the fluid and a metal
disk or a thin projecting metal strip attached to a
semiconductor to dissipate heat.
Subclass:
704
Thermal conduction:
This subclass is indented under subclass 688. Subject matter
wherein the electronic system or device is cooled by
transmitting heat through a heat transmitting member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
707 for thermal conduction through the component support
means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for heat conducting members (heat sinks), per se.
Subclass:
705
By specific coating:
This subclass is indented under subclass 704. Subject matter
wherein a particular support surface layer dissipates heat
from heat producing electrical components.
Subclass:
706
Containing silicon or aluminum:
This subclass is indented under subclass 705. Subject matter
wherein the coating contains an earth metal and element of
atomic number 13 or contains a nonmetallic element of a
carbon group, atomic number 14.
Subclass:
707
Through support means:
This subclass is indented under subclass 704. Subject matter
wherein heat is conducted through the means supporting or
upholding components of the electronic system or device.
Subclass:
708
Specific chemical compound or element:
This subclass is indented under subclass 707. Subject matter
wherein the support means is composed of a particular
substance.
Subclass:
709
Heat sink:
This subclass is indented under subclass 707. Subject matter
wherein the support means is connected to a mass of metal
that is added to an electrical device for the absorption or
transfer of warmth from electrical parts.
SEE OR SEARCH THIS CLASS, SUBCLASS:
702 for electronic systems with liquid cooling means and
having a heat sink.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for heat conducting members (heat sinks), per se.
Subclass:
710
Details:
This subclass is indented under subclass 709. Subject matter
wherein the heat sink is a complex unit having specific
parts.
Subclass:
711
Cooling plate or bar:
This subclass is indented under subclass 709. Subject matter
wherein the heat sink is combined with a flat surface or
straight piece of metal that conducts heat.
SEE OR SEARCH THIS CLASS, SUBCLASS:
702 for electronic system with liquid cooling means and
having a cold plate.
Subclass:
712
Thermally and electrically conductive:
This subclass is indented under subclass 707. Subject matter
wherein the support means conduct heat and flow of
electrons.
Subclass:
713
Electrically insulating thermally conductive:
This subclass is indented under subclass 707. Subject matter
wherein the support means conduct heat and does not conduct
flow of electrons.
Subclass:
714
Through component housing:
This subclass is indented under subclass 704. Subject matter
wherein the heat conduction is through the housing which
supports the electronic components.
SEE OR SEARCH THIS CLASS, SUBCLASS:
707 for thermal conduction through component support means.
Subclass:
715
For module:
This subclass is indented under subclass 704. Subject matter
wherein the heat is conducted from components separately
housed in a container or supported in a unit or packaging
scheme displaying regularity and separable repetition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
728 for module without cooling means.
Subclass:
716
Plural:
This subclass is indented under subclass 715. Subject matter
wherein the heat is conducted from components separately
housed in containers or supported in several units.
SEE OR SEARCH THIS CLASS, SUBCLASS:
729 for plurality of module units that are electrically
connected in groups without cooling means.
Subclass:
717
For active solid state devices:
This subclass is indented under subclass 704. Subject matter
wherein the heat is conducted from semiconductive devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
764 for integrated circuit within printed circuit board with
no cooling means and having no structural details to an
active solid state device.
783 for semiconductive device connected to printed circuit
board with no cooling means and having no structural details
to semiconductive device.
820 for electronic system or device support/housing and
having at least one semiconductor device as a component
without cooling means.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 712 for cooling of semiconductor device
wherein (a) the housing is for an active solid-state device,
details of which are positively recited in the claims or (b)
wherein the recited housing is necessary to make a usable
active solid-state device.
Subclass:
718
For integrated circuit:
This subclass is indented under subclass 717. Subject matter
wherein the heat is conducted from an electrical network
composed of two or more circuit elements inextricably bound
on a single semiconductor substrate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
764 for integrated circuit within printed circuit board
without cooling means.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), appropriate subclass for integrated
circuits, per se.
Subclass:
719
Circuit board mounted:
This subclass is indented under subclass 718. Subject matter
wherein the integrated circuit is mounted on a card, chassis,
or plate onto which an electrical circuit or network has been
printed and has a heat conducting means for cooling.
SEE OR SEARCH THIS CLASS, SUBCLASS:
748 for printed circuit with diverse components having no
cooling means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 250 for
printed circuit board, per se, and subclass 260 for printed
circuit board having one component.
Subclass:
720
For printed circuit board:
This subclass is indented under subclass 704. Subject matter
wherein an insulated card, chassis or plate is utilized to
support diverse electrical components in an interconnected
relationship and having heat conducting means for cooling.
SEE OR SEARCH THIS CLASS, SUBCLASS:
719 for integrated circuit mounted on printed circuit board
and having heat conducting means for cooling.
748 for printed circuit with diverse components having no
cooling means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 250 for
printed circuit board, per se, and subclass 260 for printed
circuit board having one component.
Subclass:
721
Plural:
This subclass is indented under subclass 720. Subject matter
wherein two or more printed circuit boards are utilized to
support diverse electrical components in an interconnected
relationship and having heat conduction for cooling.
SEE OR SEARCH THIS CLASS, SUBCLASS:
784 for plural printed circuit boards having no cooling
means.
Subclass:
722
For electronic circuit:
This subclass is indented under subclass 704. Subject matter
wherein a number of electrical components or devices are
interconnected in one or more closed path(s) to perform a
desired electrical or electronic function and having heat
conduction for cooling.
Subclass:
723
For lead frame:
This subclass is indented under subclass 704. Subject matter
wherein a metal skeletal structure is utilized to support
diverse components and having heat conduction as cooling
means.
(1) Note. Lead frame in Class 257 is defined as a
semiconductor device combined with housing wherein the
contact is part of a network of leads suspended from a common
lead.
SEE OR SEARCH THIS CLASS, SUBCLASS:
813 for lead frame utilized to support diverse components
and having no cooling means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 52.4
for lead frame devices with housing means but having no
claimed characteristics limiting particular characters of
electrical equipment classifiable in other main classes.
Subclass:
724
Cabinet-type housing:
This subclass is indented under subclass 679. Subject matter
comprising a box or housing having drawers or doors with
structure to support readily accessible electrical
components.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 50 for boxes
and housings limited by claimed structure to electrical, but
having no characteristic limiting them to a particular
electrical equipment.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 678 for details of active solid-state
devices combined with housing.
312, Supports: Cabinet Structure, appropriate subclass for
cabinet structure, per se.
348, Television, 273 for a television camera with housing or
support and subclasses 787+, 789, and 836+ for a television
projection or display device with cabinet or chassis
structure.
455, Telecommunications, 347 for cabinet, casing, housing
means, and combinations thereof peculiar to or adapted to
house, electrically shield or support radio receiver systems
or components thereof.
Subclass:
725
With retractable or readily detachable chassis:
This subclass is indented under subclass 724. Subject matter
wherein a structure is provided to retract, hinge, or detach
support means within a cabinet structure.
SEE OR SEARCH CLASS:
211, Supports: Racks, appropriate subclass for supports and
racks, per se, and subclass 26 for electrical fixture
supports.
312, Supports: Cabinet Structure, 294 for supports and
cabinets with movable components.
455, Telecommunications, subclass 348 for radio receiver
means with retractable or readily detachable chassis means.
Subclass:
726
With locking means or device:
This subclass is indented under subclass 725. Subject matter
wherein a cabinet component is fastened or made secure with a
locking or securing device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
732 for modules with lock or interlock.
740 for printed circuit boards contained in a module having
locking means or device.
747 for single module with locking means or device.
759 for printed circuit board with housing or chassis and
having lock or interlock.
SEE OR SEARCH CLASS:
70, Locks, 85 for drawer locks and subclasses 95+ for locks
on sliding doors.
312, Supports: Cabinet Structure, subclass 215 for a
plurality of components having individual locks or latches
actuated by a single selector or by a group of remote
operators, subclasses 216+ for a gang-bar type lock or latch
for plural movable components, and subclass 222 for locks or
latches for a component.
Subclass:
727
Sliding component or compartment:
This subclass is indented under subclass 725. Subject matter
wherein the cabinet contains a part that moves smoothly along
a surface of the cabinet to permit easy access.
SEE OR SEARCH CLASS:
312, Supports: Cabinet Structure, subclass 119 for cabinet
with sliding compartment, per se.
Subclass:
728
Module:
This subclass is indented under subclass 679. Subject matter
wherein the electrical components are separately housed in a
container or supported in a unit or packaging scheme
displaying regularity and separable repetition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
715 for electronic system with module and having thermal
conductive cooling means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 50 for
electrical boxes and housings of the hermetically sealed
envelope type and subclasses 250+ for preformed circuit
arrangements, per se.
439, Electrical Connectors, 55 for detachable connectors of
preformed panel circuit arrangements (e.g., printed circuit
devices).
455, Telecommunications, subclass 349 for receiver
components housed in separate containers or units.
Subclass:
729
Plural:
This subclass is indented under subclass 728. Subject matter
wherein two or more module units are electrically connected
in groups.
SEE OR SEARCH THIS CLASS, SUBCLASS:
716 for plural modules having cooling means through
component housing.
Subclass:
730
With housing:
This subclass is indented under subclass 729. Subject matter
wherein a panel or chassis is provided to mount a plurality
of modules in an interconnected relationship.
Subclass:
731
Interchangeable:
This subclass is indented under subclass 730. Subject matter
wherein one module can be substituted for another within the
module housing.
Subclass:
732
Having lock or interlock:
This subclass is indented under subclass 730. Subject matter
wherein the modules are fastened or made secure within the
housing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
726 for cabinet-type housing with retractable or readily
detachable chassis having locking means or locking device.
740 for printed circuit boards contained in a module having
locking means or device.
741 for single module with locking means or device.
759 for printed circuit board with housing or chassis and
having a lock or interlock.
SEE OR SEARCH CLASS:
70, Locks, 85 for drawer locks and subclasses 95+ for locks
on sliding doors.
312, Supports: Cabinet Structure, subclass 215 for a
plurality of components having individual locks or latches
actuated by a single selector or by a group of remote
operators, subclasses 216+ for a gang-bar type lock or latch
for plural movable components, and subclass 222 for locks or
latches for a component.
Subclass:
733
Selective connections:
This subclass is indented under subclass 730. Subject matter
wherein electrical connections are from (a) module to module
or (b) module to housing and may be chosen from a group of
possible connections.
Subclass:
734
With coupling or decoupling capacitor:
This subclass is indented under subclass 729. Subject matter
wherein an electrical energy storage device is used to allow
alternating current to pass to a module or an electrical
energy storage device is used to prevent unwanted current to
a module.
SEE OR SEARCH THIS CLASS, SUBCLASS:
268 for transformers and inductors with integral switches,
capacitors, or locks.
271 for electrostatic capacitors, per se.
Subclass:
735
Stacked:
This subclass is indented under subclass 729. Subject matter
wherein the modules are arranged one on top of another to
formulate a pile.
SEE OR SEARCH THIS CLASS, SUBCLASS:
790 for stacked printed circuit boards having separable
connector or socket means.
Subclass:
736
With printed circuits boards:
This subclass is indented under subclass 728. Subject matter
wherein the module is constructed primarily of insulating
panels wherein conductors are applied thereto by coating,
laminating, or bonding in such a manner that the conductors
are permanently attached to the panels.
SEE OR SEARCH THIS CLASS, SUBCLASS:
719 for integrated circuit mounted on a printed circuit
board and having heat conducting means for cooling.
748 for printed circuit not in a module having no cooling
means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 250 for
printed circuit board, per se, and for printed circuit board
having one component.
Subclass:
737
IC card or card member:
This subclass is indented under subclass 736. Subject matter
wherein the printed circuit board supports an electrical
network composed of two or more circuit elements inextricably
bound on a single semiconductor substrate.
Subclass:
738
With resistor and capacitor:
This subclass is indented under subclass 736. Subject matter
wherein at least a component that has a specified opposition
to a flow of electrical current and an electrical energy
storage device are connected to the printed circuit board.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for capacitors, per se.
763 for capacitor and resistor within printed circuit
board.
766 for capacitor and resistor coated on printed board.
782 for passive component in conjunction with another
electrical component on printed circuit board not in a
module.
830 for plurality of capacitors on a frame.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 260
for printed circuit with a capacitor or a resistor.
Subclass:
739
With particular material:
This subclass is indented under subclass 736. Subject matter
wherein at least a part of the circuit board structure is
composed of one or more specific substances.
SEE OR SEARCH THIS CLASS, SUBCLASS:
751 for a printed circuit not associated with a module and
having a particular material.
757 for printed circuit board housing with a particular
material.
771 for printed circuit board not contained in a module with
a mounting pad and having a particular material.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 256
for particular material of printed circuit board without
diverse electrical components.
Subclass:
740
With locking means or device:
This subclass is indented under subclass 736. Subject matter
wherein the module is fastened or made secure to a support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
726 for cabinet-type housing with locking means or device.
732 for plural modules having a lock or interlock.
747 for single module with locking means or device.
759 for printed circuit board not contained in module with
housing or chassis and having lock or interlock.
SEE OR SEARCH CLASS:
70, Locks, 85 for drawer locks and subclasses 95+ for locks
on sliding doors.
312, Supports: Cabinet Structure, subclass 215 for a
plurality of components having individual locks or latches
actuated by a single selector or by a group of remote
operators, subclasses 216+ for a gang-bar type lock or latch
for plural movable component, and subclass 222 for locks or
latches for a component.
Subclass:
741
Guiding means:
This subclass is indented under subclass 736. Subject matter
wherein a support for the circuit boards contain parts that
direct a motion of the circuit board.
SEE OR SEARCH THIS CLASS, SUBCLASS:
756 for printed circuits not contained in modules and having
guiding means.
802 for plural printed circuit boards not contained in
module with housing or chassis and having specific guiding
means.
Subclass:
742
With spacer:
This subclass is indented under subclass 736. Subject matter
wherein a surface or barrier (used to maintain circuit boards
a uniform distance from each other) is designed specifically
for use with the printed circuit boards.
SEE OR SEARCH THIS CLASS, SUBCLASS:
758 for spacer with circuit boards not contained in module.
770 for spacer with circuit board not contained in module
and having a mounting pad.
804 for spacer details with plural printed circuit boards
not contained in module.
Subclass:
743
Solder connection:
This subclass is indented under subclass 736. Subject matter
wherein at least part of the printed circuit board's
component(s) is interconnected with a readily meltable metal
or alloy that produces a bond at a junction of two metal
surfaces.
Subclass:
744
This subclass is indented under subclass 736. Subject matter
wherein diverse discrete components are mounted between and
perpendicular to two parallel printed circuit boards to which
their terminals are attached.
Subclass:
745
Welded connection:
This subclass is indented under subclass 744. Subject matter
wherein at least one electrical component's metal lead is (a)
consolidated by an application of heat to another electrical
component's metal lead or (b) consolidated by an application
of heat to a metal support.
SEE OR SEARCH CLASS:
219, Electric Heating, 50 for electric welding, per se.
Subclass:
746
With specific dielectric material or layer:
This subclass is indented under subclass 728. Subject matter
wherein the module contains a particular insulating medium
which intervenes between two conductors and permits
electrostatic attraction and repulsion to take place across
the conductors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
301 for dielectric capacitors, per se.
750 for dielectric material or layer on flexible printed
circuit board not contained in module.
762 for dielectric material or layer with printed circuit
board not contained in module having housing or chassis.
795 for plural contiguous printed circuit boards not
contained in module having separate layers of dielectric
material.
SEE OR SEARCH CLASS:
252, Compositions, appropriate subclass for fluent
dielectric, per se.
Subclass:
747
With locking means or device:
This subclass is indented under subclass 728. Subject matter
wherein the module is fastened or made secure to a support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
726 for cabinet-type housing with locking means or device.
732 for modules having lock or interlock.
740 for printed circuits contained in module with lock or
locking device.
759 for printed circuit board not contained in module with
housing or chassis and having lock or interlock.
SEE OR SEARCH CLASS:
70, Locks, 85 for drawer locks and subclasses 95+ for locks
on sliding doors.
312, Supports: Cabinet Structure, subclass 215 for a
plurality of components having individual locks or latches
actuated by a single selector or by a group of remote
operators, subclasses 216+ for a gang-bar type lock or latch
for plural movable components, and subclass 222 for locks or
latches for a component.
Subclass:
748
Printed circuit board:
This subclass is indented under subclass 679. Subject matter
comprising an insulating panel wherein conductors are applied
thereto by coating, laminating, or bonding in such a manner
that the conductors are permanently attached to the panel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
720 for printed circuit board utilized to support diverse
electrical components in an interconnected relationship and
having heat conduction cooling means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 250 for
printed circuit board, per se, and subclass 260 for printed
circuit board having one component.
Subclass:
749
Flexible board:
This subclass is indented under subclass 748. Subject matter
wherein the printed circuit board is constructed of an
elastic material.
Subclass:
750
With specific dielectric material or layer:
This subclass is indented under subclass 749. Subject matter
wherein the flexible printed circuit board contains a
particular insulating medium which intervenes between two
conductors and permits electrostatic attraction and repulsion
to take place across the conductors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
301 for dielectric capacitor, per se.
746 for dielectric material or layer contained in module.
762 for dielectric material or layer with printed circuit
board not contained in module having housing or chassis.
795 for plural contiguous printed circuit boards not
contained in module having separate layers of dielectric
material.
SEE OR SEARCH CLASS:
252, Compositions, appropriate subclass for fluent
dielectric, per se.
Subclass:
751
With particular conductive material or coating:
This subclass is indented under subclass 749. Subject matter
wherein at least a part of the flexible circuit board
structure contains (a) one or more specific electrical
transmitting substances or (b) one or more specific
electrical transmitting films or coatings.
SEE OR SEARCH THIS CLASS, SUBCLASS:
739 for printed circuits in modules with particular
material.
757 for printed circuit board not contained in module with
housing or chassis and having a particular material.
771 for printed circuit board with a mounting pad and having
a particular material.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 256
for particular material of printed circuit board without
diverse electrical components.
Subclass:
752
With housing or chassis:
This subclass is indented under subclass 748. Subject matter
wherein a casing, enclosure, or sheet metal box supporting
the printed circuit board has structural details of casing,
enclosure, or sheet metal box.
SEE OR SEARCH THIS CLASS, SUBCLASS:
736 for modular housing units which include printed circuit
boards having structural details of casing, housing, or
chassis.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 50 for boxes
and housings limited by structure to electrical use, but
having no characteristic limiting them to particular
electrical equipment.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 678 for details of active solid-state
devices combined with housing.
Subclass:
753
Specific chassis or ground:
This subclass is indented under subclass 752. Subject matter
comprising a particular electrical connection from the
printed circuit board to a metal supporting structure.
Subclass:
754
With ejector means:
This subclass is indented under subclass 752. Subject matter
comprising a device or mechanism utilized to remove the
printed circuit board from the housing or chassis.
Subclass:
755
Rotatable:
This subclass is indented under subclass 752. Subject matter
wherein a member of the housing or chassis turns about an
axis or center.
Subclass:
756
Guiding means:
This subclass is indented under subclass 752. Subject matter
wherein the printed circuit board housing or chassis contains
parts that direct the motion of the printed circuit board,
away or to the housing or chassis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
741 for module with printed circuits and having guiding
means.
802 for plural printed circuit boards with housing or
chassis and having specific guiding means.
Subclass:
757
With particular material:
This subclass is indented under subclass 752. Subject matter
wherein at least a part of the printed circuit board housing
or chassis is composed of one or more specific substances.
SEE OR SEARCH THIS CLASS, SUBCLASS:
739 for printed circuits in modules with particular
material.
751 for flexible printed circuit board not contained in
module and having a particular material or coating.
771 for printed circuit board not contained in a module with
a mounting pad and having a particular material.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 256
for particular material of printed circuit board without
diverse electrical components.
Subclass:
758
With spacer:
This subclass is indented under subclass 752. Subject matter
wherein a surface or barrier (that maintain circuit boards a
uniform distance from each other) is designed specifically
for use with the printed circuit board.
SEE OR SEARCH THIS CLASS, SUBCLASS:
742 for spacer with circuit boards contained in module.
770 for spacer with circuit board not contained in module
and having a mounting pad.
804 for spacer details with plural printed circuit boards.
Subclass:
759
With lock or interlock:
This subclass is indented under subclass 752. Subject matter
wherein the printed circuit board is fastened or made
secure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
726 for cabinet-type housing with locking means or device.
732 for modules with lock or interlock.
740 for printed circuit boards contained in a module having
locking means or device.
747 for single module with locking means or device.
SEE OR SEARCH CLASS:
70, Locks, 85 for drawer locks and subclasses 95+ for locks
on sliding doors.
312, Supports: Cabinet Structure, subclass 215 for a
plurality of components having individual locks or latches
actuated by a single selector or by a group of remote
operators, subclasses 216+ for a gang-bar type lock or latch
for plural movable components, and subclass 222 for locks or
latches for a component.
Subclass:
760
Connection of components to board:
This subclass is indented under subclass 748. Subject matter
wherein a specific structure is provided to facilitate
interconnecting diverse components to the printed circuit
board.
SEE OR SEARCH THIS CLASS, SUBCLASS:
807 for structure facilitating connection of components to a
support other than a printed circuit board.
SEE OR SEARCH CLASS:
29, Metal Working, 832 for processes including mounting of
an electrical device to a printed circuit board.
Subclass:
761
Component within printed circuit board:
This subclass is indented under subclass 760. Subject matter
comprising a slot or aperture within the printed circuit
board for receiving the component.
Subclass:
762
With specific dielectric material or layer:
This subclass is indented under subclass 761. Subject matter
wherein the printed circuit board contains a particular
insulating medium which intervenes between two conductors and
permits electrostatic attraction and repulsion to take place
across it.
SEE OR SEARCH THIS CLASS, SUBCLASS:
301 for dielectric capacitors, per se.
746 for dielectric material obtained in module.
750 for dielectric material on flexible printed circuit
board not contained in module.
795 for plural contiguous printed circuit boards not
contained in module having separate layers of dielectric
material.
SEE OR SEARCH CLASS:
252, Compositions, appropriate subclass for fluent
dielectric, per se.
Subclass:
763
Capacitor and electrical component:
This subclass is indented under subclass 761. Subject matter
comprising an electrical energy storage device and a
resistor, inductor, diode, or semiconductor device within the
printed circuit board.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for capacitor, per se.
738 for resistor and capacitor on printed circuit board with
module.
766 for capacitor and resistor coated on printed circuit
board.
782 for passive component in conjunction with another
electric component on printed circuit board not in module.
821 for electronic system or device support/housing having
at least one capacitor and at least one inductor.
830 for plurality of capacitors on a frame.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 260
for printed circuit with a capacitor or an electrical
component.
Subclass:
764
Integrated circuit:
This subclass is indented under subclass 761. Subject matter
comprising an electrical network composed of two or more
circuit elements inextricably bound on a single semiconductor
substrate within the printed circuit board having no
structural details to the electrical network.
SEE OR SEARCH THIS CLASS, SUBCLASS:
718 for integrated circuit having heat conduction as cooling
means with no structural details to integrated circuit.
783 for semiconductive device connected to printed circuit
board with no structural details to semiconductive device.
820 for electronic system or device support/housing having
at least one semiconductor device as a component.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 678 for semiconductor device wherein
(a) the housing is for an active solid-state device, details
of which are positively recited in the claims, or (b) wherein
the recited housing is necessary to make a usable active
solid-state device.
Subclass:
765
By direct coating of components on board:
This subclass is indented under subclass 760. Subject matter
wherein diverse electrical components are directly coated,
deposited, or screened on the board.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 9 for components coated on a base
wherein the device has a layer of a thickness less than two
microns in the conduction path or the device is specified to
be a thin film device.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, subclass 567 for devices including a
thin layer of conductive or semiconductive material of atomic
dimensions which act as a nonlinear element.
Subclass:
766
Capacitor and resistor:
This subclass is indented under subclass 765. Subject matter
comprising (a) at least an electrical energy storage device
and (b) an electrical component with specified opposition to
a flow of electrical current are coated on the printed
circuit board.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for capacitor, per se.
738 for capacitor and resistor on printed circuit board in a
module.
766 for capacitor and electrical component on printed
circuit board not in module.
782 for passive component in conjunction with another
electrical component on printed circuit board not in module.
821 for electronic system or device support/housing having
at least one capacitor and at least one inductor.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 260
for printed circuit with a capacitor or an electrical
component.
Subclass:
767
With mounting pad:
This subclass is indented under subclass 752. Subject matter
wherein an intermediate support fixed to the printed circuit
is utilized as a carrier or pad for electrical components to
facilitate connection thereof to the printed circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
808 for mounting pad structure not utilized with a printed
circuit board.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 52.1 for
mounting pad structure, per se.
324, Electricity: Measuring and Testing, subclass 158 for
mounting structure utilized in conjunction with measuring and
testing devices having details of measuring and testing
devices.
Subclass:
768
Having leadless component:
This subclass is indented under subclass 767. Subject matter
wherein the mounting pad provides a mounting surface for
electrical carriers or substrates without connection wires.
Subclass:
769
Having spring member:
This subclass is indented under subclass 767. Subject matter
wherein (a) an elastic or resilient device or mechanism
assures good electrical contact with a conductor and a
component or (b) an elastic or resilient device or mechanism
serves as a stop for limiting relative movement between
separable portions of a connector structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
787 for plural circuit board housing having spring
connection member.
Subclass:
770
Having spacer:
This subclass is indented under subclass 767. Subject matter
wherein a surface or barrier, that maintain printed circuit
boards in a uniform distance from each other, is designed
specifically for use with the printed circuit boards.
SEE OR SEARCH THIS CLASS, SUBCLASS:
742 for spacer with circuit boards contained in module.
758 for spacer with circuit board not contained in module
and having housing or chassis.
804 for spacer details with plural printed circuit boards.
Subclass:
771
With particular material:
This subclass is indented under subclass 767. Subject matter
wherein at least a part of the printed circuit board housing
is composed of one or more specific substances.
SEE OR SEARCH THIS CLASS, SUBCLASS:
739 for printed circuits contained in modules with
particular material.
751 for flexible printed circuit board not contained in
module and having a particular material or coating.
757 for printed circuit board not contained in module with
housing or chassis and having a particular material.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 256
for particular material of printed circuit board without
diverse electrical components.
Subclass:
772
With specific lead configuration:
This subclass is indented under subclass 760. Subject matter
wherein a particular connection wire structure is provided
for facilitating connection between the components and the
printed circuit board.
Subclass:
773
Shaped lead on components:
This subclass is indented under subclass 772. Subject matter
wherein the connection wire is located on the components.
Subclass:
774
Shaped lead on board:
This subclass is indented under subclass 772. Subject matter
wherein the connection wire is located on the printed circuit
board.
SEE OR SEARCH THIS CLASS, SUBCLASS:
809 for structure that facilitates connection of plural
components not located on a printed circuit board.
Subclass:
775
Busbar:
This subclass is indented under subclass 772. Subject matter
wherein the connection wire is a single conductive member
supplying a plurality of spaced electrical components.
Subclass:
776
Flexible connecting lead:
This subclass is indented under subclass 772. Subject matter
wherein the connection wire structure comprises a flexible or
resilient electrical conductor.
Subclass:
777
By specific pattern on board:
This subclass is indented under subclass 760. Subject matter
wherein the lead structure provided for facilitating
connection comprises a specific geometric arrangement of
printed conductors on the printed circuit board.
Subclass:
778
Cross-connected:
This subclass is indented under subclass 777. Subject matter
wherein a specific geometric arrangement comprises an array
of crossing conductors disposed of within a same plane.
Subclass:
779
With specific connection material:
This subclass is indented under subclass 777. Subject matter
wherein the arrangement of conductors comprises a material or
substance in or on a conductor to facilitate connection of
the components therefor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
803 for plural printed circuit boards with interconnection
details.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 734 for active solid-state devices
(e.g., transistors, integrated circuit with significant
contact structure or material, etc.).
439, Electrical Connectors, appropriate subclass for
electrical connectors, per se.
Subclass:
780
Different voltage layers:
This subclass is indented under subclass 760. Subject matter
wherein the printed circuit board contains layers or strips
having unequal electric potentials.
Subclass:
781
With switch:
This subclass is indented under subclass 760. Subject matter
wherein the printed circuit board contains at least a
mechanical or electrical device that completes or breaks the
path of current or sends it over a different path as one of
its electrical components.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses for switches and circuit breakers, per se.
Subclass:
782
Having passive component:
This subclass is indented under subclass 760. Subject matter
wherein the printed circuit board contains at least a
capacitor, inductor, or resistor as one of its electrical
components.
(1) Note. Printed circuit board must also contain another
electrical component in conjunction with a passive component
to be classified in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
738 for resistor and capacitor on printed circuit board with
module.
763 for capacitor and electrical component within printed
circuit board not with module.
766 for capacitor and resistor coated on printed circuit
board.
830 for plurality of capacitors on a frame.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 260
for printed circuit with one electrical component.
Subclass:
783
Having semiconductive device:
This subclass is indented under subclass 760. Subject matter
wherein a component connected to the printed circuit board is
an active solid state device having no structural details to
an active solid state device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
717 for an active solid state device with support or housing
having thermal conduction cooling means with no structural
details to an active solid state device.
764 for integrated circuit within printed circuit board with
no cooling means and having no structural details to active
solid state device.
820 for electronic system or device support/housing and
having at least one semiconductor device as a component with
no structural details to an active solid state device.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 678 for semiconductor device wherein
(a) the housing is for an active solid-state device, details
of which are positively recited in the claims, or (b) wherein
the recited housing is necessary to make a usable active
solid-state device.
Subclass:
784
Plural:
This subclass is indented under subclass 748. Subject matter
wherein two or more printed circuit boards are utilized to
support a plurality of diverse electrical components in an
interconnected relationship.
Subclass:
785
With separable connector or socket means:
Subject matter under 784 wherein each printed circuit board
can be distinctly detached from the mount or support.
SEE OR SEARCH CLASS:
439, Electrical Connectors, 43 for connector with selectable
circuits and subclasses 55+ for connector with preformed
panel circuit arrangement.
Subclass:
786
Having key connection:
This subclass is indented under subclass 785. Subject matter
comprising a mechanical arrangement of guide pins, sockets,
contacts, slots, inserts, or grooves in the mount or support
which allows the connector to be lined up without a danger of
making a wrong connection.
Subclass:
787
Having spring member:
This subclass is indented under subclass 785. Subject matter
wherein (a) an elastic or resilient device or mechanism
assures good electrical contact with a conductor and a
component or (b) an elastic or resilient device or mechanism
serves as a stop for limiting relative movement between
separable portions of the connector structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
769 for single printed circuit board with mounting pad and
having spring connection member.
Subclass:
788
Having backplane connection:
This subclass is indented under subclass 785. Subject matter
wherein the printed circuit boards are connected to an
equipment's rear panel.
Subclass:
789
Having flexible connector:
This subclass is indented under subclass 785. Subject matter
wherein the separable connector's contact, socket, terminal,
or groove comprises an elastic or resilient electrical
conductor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
776 for flexible connecting lead on single printed circuit
board with housing.
Subclass:
790
Stacked:
This subclass is indented under subclass 785. Subject matter
wherein the printed circuit boards are arranged one on top of
another to formulate a pile.
SEE OR SEARCH THIS CLASS, SUBCLASS:
735 for stacked modules with housing.
Subclass:
791
Multiple contact pins:
This subclass is indented under subclass 785. Subject matter
wherein the separable connectors comprise posts or pins
arranged in arrays or rows.
Subclass:
792
Plural contiguous boards:
This subclass is indented under subclass 784. Subject matter
wherein two or more printed circuit boards have surfaces that
are adjacent and in physical contact with each other.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 250 for
printed circuit board, per se.
Subclass:
793
Thick film component or material:
This subclass is indented under subclass 792. Subject matter
wherein a conductive, resistive, or capacitive component,
network, or layer is deposited on a substrate using a
metallic or resistive coating which is more than five (5)
micrometers in thickness.
Subclass:
794
Power, voltage, or current layer:
This subclass is indented under subclass 792. Subject matter
wherein a surface on or within the printed circuit board is
used to supply electrical energy to electrical components
mounted on or within the printed circuit board.
SEE OR SEARCH THIS CLASS, SUBCLASS:
601 for housing or mounting assemblies for electrical power
distribution system and devices, per se.
Subclass:
795
Plural dielectric layers:
This subclass is indented under subclass 792. Subject matter
wherein the printed circuit boards contain two or more
separate insulating mediums which intervene between two
conductors and permit electrostatic attraction and repulsion
to take place across them.
SEE OR SEARCH THIS CLASS, SUBCLASS:
301 for dielectric capacitors, per se.
746 for dielectric material contained in module.
750 for dielectric material on flexible printed circuit
board.
762 for dielectric layer on printed circuit board having
component within printed circuit board combined with chassis
or housing.
SEE OR SEARCH CLASS:
252, Compositions, appropriate subclass for fluent
dielectric, per se.
Subclass:
796
With housing or chassis:
This subclass is indented under subclass 784. Subject matter
wherein a casing, enclosure, or sheet metal box is provided
to support a plurality of printed circuit boards.
SEE OR SEARCH THIS CLASS, SUBCLASS:
730 for housings containing plural modules which may or may
not comprise printed circuits.
SEE OR SEARCH CLASS:
211, Supports: Racks, 41.1 for frame structure designed to
support plates or plate-like articles not specifically
designated as printed circuits.
Subclass:
797
Storage or file cabinet:
This subclass is indented under subclass 796. Subject matter
wherein the housing or casing is used for a safekeeping or
protection of the printed circuit boards.
Subclass:
798
With ejector or extractor:
This subclass is indented under subclass 796. Subject matter
wherein the housing or chassis is equipped with a mechanism
that disengages the printed circuit boards from the housing
or chassis.
Subclass:
799
Grounding construction or detail:
This subclass is indented under subclass 796. Subject matter
wherein the housing or chassis contains particular or
specified circuitry, that connects to earth.
Subclass:
800
With shielding structure:
This subclass is indented under subclass 796. Subject matter
wherein the housing or chassis is provided: (a) With means
for protecting at least part of the devices from external
electric or magnetic fields, or (b) with means to protect one
or more elements of the device from electric or magnetic
fields generated in one or more other parts of a system, or
(c) with protecting or screening means to prevent radiation
of undesired electric or magnetic fields generated within
systems.
SEE OR SEARCH THIS CLASS, SUBCLASS:
816 for diverse electrical components housing and support
with shielding, per se.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 32 for
miscellaneous anti-inductive structures, particularly
indented subclasses 35+ for miscellaneous electrical shields
and screen structures not elsewhere classifiable.
307, Electrical Transmission or Interconnection Systems,
subclass 91 for anti-induction or coupling to other systems
with magnetic or electrostatic field control (e.g.,
shielding).
315, Electric Lamp and Discharge Devices: Systems, subclass
85 for gaseous tube systems with electromagnetic wave
radiation prevention or shielding means.
330, Amplifiers, subclass 68 for amplifiers with shielding
means.
331, Oscillators, subclass 67 for oscillators combined with
electromagnetic or electrostatic shield means.
333, Wave Transmission Lines and Networks, subclass 12 for
transmission line inductive or radiation interference
systems.
334, Tuners, subclass 85 for radio tuners with shielding
means.
336, Inductor Devices, subclass 84 for induction devices
with electric or magnetic shielding means.
338, Electrical Resistors, subclass 64 for electrical
resistors with electrical shielding means.
343, Communications: Radio Wave Antennas, 841 for antenna
structure with electric shielding means.
348, Television, 818 for a cathode-ray tube with protective
means.
439, Electrical Connectors, subclass 497 for connector
including tape cable with shield and subclasses 607+ for
connector having or providing inductive or capacitive
shield.
Subclass:
801
Specific latching or retaining device:
This subclass is indented under subclass 796. Subject matter
wherein the chassis or housing comprises a particular
fastener or holding device that secures the printed circuit
boards to the chassis or housing.
(1) Note. Locks are considered to be latches or retaining
devices for this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
726 for cabinet-type housing with locking means or device.
732 for plural modules having lock or interlock.
747 for single module with locking means or device.
759 for printed circuit board with housing or chassis and
having lock or interlock.
SEE OR SEARCH CLASS:
70, Locks, 85 for drawer locks and subclasses 95+ for locks
on sliding doors.
312, Supports: Cabinet Structure, subclass 215 for a
plurality of components having individual locks or latches
actuated by a single selector or by a group of remote
operators, subclasses 216+ for a gang-bar type look or latch
for plural movable component actuated by another component,
and subclass 222 for locks or latches for a component.
Subclass:
802
Specific alignment or guide means:
This subclass is indented under subclass 796. Subject matter
wherein the housing or chassis contain parts that (a) direct
the motion of the printed circuit boards or (b) aid in the
proper positioning of the printed circuit boards.
SEE OR SEARCH THIS CLASS, SUBCLASS:
741 for module with printed circuit and having guiding
means.
756 for printed circuits not contained in modules and having
guiding means.
Subclass:
803
Interconnection details:
This subclass is indented under subclass 784. Subject matter
wherein a conductive path or connecting line between the
printed circuit boards has specific details.
SEE OR SEARCH THIS CLASS, SUBCLASS:
778 for single printed circuit board with housing or chassis
and having cross-connect arrangement.
779 for single printed circuit board with housing or chassis
and having a specific connection material.
SEE OR SEARCH CLASS:
439, Electrical Connectors, appropriate subclass for
electrical connectors, per se.
Subclass:
804
Spacer details:
This subclass is indented under subclass 784. Subject matter
wherein surfaces or barriers used to maintain the printed
circuit boards in a uniform distance from each other are
described thoroughly.
SEE OR SEARCH THIS CLASS, SUBCLASS:
742 for spacer with circuit boards contained in a module.
758 for circuit boards not contained in a module with
housing or chassis and having a spacer.
770 for spacer with circuit board not contained in module
and having mounting pad.
Subclass:
805
Matrix assembly:
This subclass is indented under subclass 679. Subject matter
comprising a plurality of diverse electrical components
connected by crossed gratings and located at intersections of
conductors.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 107 for electromagnetically operated
selector devices.
340, Communications: Electrical, 825.79 for selective
matrix communication system.
Subclass:
806
Diode:
This subclass is indented under subclass 805. Subject matter
wherein the matrix assembly contains a plurality of
electrical devices that will conduct electricity much more
easily in one direction than in the other.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), subclasses 40-43 for diodes, per se.
Subclass:
807
Component mounting or support means:
This subclass is indented under subclass 679. Subject matter
wherein an upholding structure or chassis is utilized to hold
a plurality of diverse electrical components in an
interconnected relationship.
SEE OR SEARCH THIS CLASS, SUBCLASS:
748 for component mounting means wherein the support is a
printed circuit board.
Subclass:
808
Mounting pad:
This subclass is indented under subclass 807. Subject matter
wherein an intermediate support connected to the support or
mount is utilized as a carrier for electrical components.
SEE OR SEARCH THIS CLASS, SUBCLASS:
767 for mounting pad structure specifically for use with a
printed circuit.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 52.1 for
mounting pad, per se.
324, Electricity: Measuring and Testing, subclass 158 for
mounting structure utilized in conjunction with measuring and
testing devices.
Subclass:
809
With discrete structure or support:
This subclass is indented under subclass 807. Subject matter
wherein means are provided on the chassis or support to
facilitate connection of the components thereto.
SEE OR SEARCH THIS CLASS, SUBCLASS:
774 for component lead structure on a printed circuit
board.
Subclass:
810
Plural mounting or support:
This subclass is indented under subclass 807. Subject matter
wherein two or more supporting means or chassis means are
provided to support diverse electrical components.
SEE OR SEARCH THIS CLASS, SUBCLASS:
784 for plural printed circuit boards.
Subclass:
811
With passive components:
This subclass is indented under subclass 807. Subject matter
wherein support or chassis is utilized to mount resistors,
capacitors, or inductors in an interconnected relationship.
Subclass:
812
With particular insulation:
This subclass is indented under subclass 807. Subject matter
wherein a support or chassis is utilized to mount a plurality
of diverse electrical components in an interconnected
relationship and having details of a nonconductive material
that prevents the leakage of electricity from a conductor or
protects against accidental contact.
Subclass:
813
Lead frame:
This subclass is indented under subclass 679. Subject matter
wherein a metal skeletal structure is utilized to support a
plurality of diverse electrical components, portions of a
metal skeletal structure being removed to provide connecting
paths.
(1) Note. Lead frame in Class 257 is defined as a
semiconductor device combined with housing wherein the
contact is part of a network of leads suspended from a common
lead.
SEE OR SEARCH THIS CLASS, SUBCLASS:
723 for electronic system housing or support with thermal
conductive cooling and having a lead frame.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 52.4
for lead frame devices with housing means but having no
claimed characteristics limiting the same to particular
features of electrical equipment classifiable in other main
classes.
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 666 for lead frame. See (1) Note,
above.
Subclass:
814
Radio type:
This subclass is indented under subclass 679. Subject matter
comprising communication type devices having no significant
art limitations and such devices in combination with diverse
pieces of electrical apparatus wherein the combination is not
provided for in any other class or in other subclasses of
this class.
SEE OR SEARCH CLASS:
312, Supports: Cabinet Structure, 7.1 for cabinets or
enclosures specially designed to house radios, phonograph
instruments, or records having no electrical components or
devices.
331, Oscillators, subclass 187 for miscellaneous oscillator
structures.
455, Telecommunications, 347 for housings, cabinets, or
chassis combined with specific functional details or
structure of a receiver.
Subclass:
815
Tube mounting:
This subclass is indented under subclass 814. Subject matter
wherein a support or chassis means is structurally connected
to a tube socket.
SEE OR SEARCH CLASS:
439, Electrical Connectors, appropriate subclass for tube
sockets, per se.
Subclass:
816
Shielding:
This subclass is indented under subclass 679. Subject matter
wherein the electronic systems and devices are provided: (a)
With means for protecting at least part of the devices from
external electric or magnetic fields; (b) with means to
protect one or more elements of the device from electric or
magnetic fields generated in one or more other parts of the
system; or (c) with protecting or screening means to prevent
radiation of undesired electric or magnetic fields generated
within the system.
SEE OR SEARCH THIS CLASS, SUBCLASS:
800 for plural printed circuit boards with chassis or
housing combined with shielding structure.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 32 for
miscellaneous anti-inductive structures, particularly
indented subclasses 35+ for miscellaneous electrical shields
and screen structures not elsewhere classifiable.
250, Radiant Energy, subclass 515.1 for radiant energy
shielding means not elsewhere provided for.
307, Electrical Transmission or Interconnection Systems,
subclass 91 for anti-induction or coupling to other systems
with magnetic or electrostatic field control (e.g.,
shielding).
313, Electric Lamp and Discharge Devices, 326 for electric
lamp and discharge devices having electrode and shield
structures.
315, Electric Lamp and Discharge Devices: Systems, subclass
85 for gaseous tube systems with electromagnetic wave
radiation prevention or shielding means.
330, Amplifiers, subclass 68 for amplifiers with shielding
means.
331, Oscillators, subclass 67 for oscillators combined with
electromagnetic or electrostatic shield means.
333, Wave Transmission Lines and Networks, subclass 12 for
transmission line inductive or radiation interference
systems.
334, Tuners, subclass 85 for radio tuners with shielding
means.
336, Inductor Devices, subclass 84 for induction devices
with electric or magnetic shield means.
338, Electrical Resistors, subclass 64 for electrical
resistors with electrical shield means.
343, Communications: Radio Wave Antennas, 841 for antenna
structure with electric shield means.
348, Television, subclass 842 for a video display with a
light shield.
439, Electrical Connectors, subclass 497 for connector
including tape cable with shield and subclasses 607+ for
connector having or providing inductive or capacitive
shield.
Subclass:
817
For electronic tube:
This subclass is indented under subclass 816. Subject matter
wherein electric or magnetic field shielding or screening
means is provided for a hermetically sealed glass or metal
envelope in which conduction of electrons takes place through
a vacuum or gas.
SEE OR SEARCH CLASS:
313, Electric Lamp and Discharge Devices, 326 for electric
lamp and discharge devices having electrode and shield
structures.
315, Electric Lamp and Discharge Devices: Systems, subclass
85 for electric lamp and discharge devices systems having
shielding means for part of the system.
Subclass:
818
EMI:
This subclass is indented under subclass 816. Subject matter
wherein electronic systems and devices are provided with
shielding or screening means to prevent a disturbance caused
by electromagnetic waves that can impair the operation of
electrical or electronic equipment.
(1) The terms "radio interference," "radio-frequency
interference," "noise," "emi," and "rfi" have been employed
at various times in the same context.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 32 for
miscellaneous anti-inductive structures, particularly
indented subclasses 35+ for miscellaneous electrical shields
and screen structures not elsewhere classifiable.
Subclass:
819
For relay:
This subclass is indented under subclass 679. Subject matter
comprising a support or housing for an electromechanical
device in which contacts are opened or closed by variations
in conditions of one electric circuit and thereby affect
operation of other devices in the same or other electric
circuits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
142 for relay control circuit including housing.
160 for relay control circuits, per se.
SEE OR SEARCH CLASS:
335, Electricity: Magnetically Operated Switches, Magnets,
and Electromagnets, 2 for relays, per se.
Subclass:
820
For semiconductor device:
This subclass is indented under subclass 679. Subject matter
comprising a support or housing for at least an active solid
state device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
717 for active solid state devices using thermal conduction
as a cooling means.
737 for IC cards in module with no cooling means.
764 for integrated circuit connected to printed circuit
board with no cooling means.
783 for semiconductor device with mounting pad and having no
cooling means.
SEE OR SEARCH CLASS:
257, Active Solid-State Devices (e.g., Transistors,
Solid-State Diodes), 678 for housing combined with
semiconductor device wherein (a) the housing is for an active
solid-state device, details of which are positively recited
in the claims or (b) wherein the recited housing is necessary
to make a usable active solid-state device.
Subclass:
821
For capacitor and inductor:
This subclass is indented under subclass 679. Subject matter
comprising a support or housing for at least a device
consisting essentially of two conducting surfaces separated
by an insulating material or dielectric such as air, paper,
mica, glass, plastic film, or oil, and at least one
retardation coil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
270 for transformers and inductor with capacitor element.
271 for capacitor, per se.
738 for resistor and capacitor on printed circuit board with
module.
763 for capacitor and electrical component on printed
circuit board not in module.
766 for capacitor and electrical component coated on printed
circuit board.
782 for passive component in conjunction with another
electrical component on printed circuit board not in module.
814 for plurality of capacitors on a frame.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 260
for printed circuit with a capacitor or an inductor.
336, Inductor Devices, appropriate subclass for inductor, per
se.
Subclass:
822
Contact banks:
This subclass is indented under subclass 600. Subject matter
comprising arrays or groupings of electrical junction
points.
(1) Note. The contacts are commonly used for switching
devices, wire wrapping, etc. Diverse electrical components
must be included for classification in this class (361).
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for plural conductors.
439, Electrical Connectors, appropriate subclass for
connectors having plural contacts.
Subclass:
823
Terminal block:
This subclass is indented under subclass 600. Subject matter
comprising an insulating base or slab equipped with one or
more electrical connection points for the purpose of making
electrical connections thereto.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for plural conductors.
439, Electrical Connectors, appropriate subclass for
connectors having plural contacts.
Subclass:
824
With protective device or unit:
This subclass is indented under subclass 823. Subject matter
wherein terminal blocks contain units or devices that
safeguard against excessive voltage or current.
SEE OR SEARCH THIS CLASS, SUBCLASS:
630 for distribution or control panel boards with fuses.
646 for panel mounted fuses which are mounted in an electric
service or distribution box.
833 for fuse blocks of unit construction.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, subclass 4 for fuse structure, per se.
Subclass:
825
Support brackets:
This subclass is indented under subclass 600. Subject matter
comprising a fixture projecting from a wall or column used
for supporting the electrical components or devices.
SEE OR SEARCH CLASS:
248, Supports, appropriate subclass for supports, per se.
Subclass:
826
Wire distribution (e.g., harness, rack):
This subclass is indented under subclass 600. Subject matter
wherein the housings, mounting assemblies, or diverse
electrical components are combined with wire apportion or
distribution means.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, appropriate
subclass for cable supports, cable supports having one
electrical component or cable supports having plural same
electrical component.
Subclass:
827
With interconnecting cable:
This subclass is indented under subclass 826. Subject matter
wherein a conductive path between two or more terminals is an
assembly of insulated conductors in a compact form covered by
a flexible waterproof protective covering.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 102
for cable, per se.
Subclass:
828
With switchboard or switch:
This subclass is indented under subclass 826. Subject matter
wherein the harness or rack supports a device for making,
breaking, or changing connections in an electrical circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
605 for electrical switchgear in power distribution systems
and devices.
628 for switches in distribution power boards.
832 for switchboard or switch in a frame.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclass for switches, per se.
Subclass:
829
Frame:
This subclass is indented under subclass 600. Subject matter
wherein the electrical components are supported by
skeletal-type beams forming an open frame or support.
SEE OR SEARCH CLASS:
248, Supports, appropriate subclass for supporting frames,
per se.
Subclass:
830
With plurality of capacitors:
This subclass is indented under subclass 829. Subject matter
wherein the frame supports two or more capacitors or
condensers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
271 for capacitors, per se.
738 for capacitor and resistor on printed circuit.
763 for capacitor and electrical component on printed
circuit board not in module.
782 for passive component in conjunction with another
electrical component on printed circuit board not in module.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, subclass 260
for printed circuit with a capacitor or an electrical
component.
Subclass:
831
With cooling means:
This subclass is indented under subclass 829. Subject matter
wherein the frame comprises a means for dissipating heat from
the frame.
SEE OR SEARCH THIS CLASS, SUBCLASS:
676 for electrical power systems with cooling means.
688 for electronic systems and devices with cooling means.
SEE OR SEARCH CLASS:
165, Heat Exchange, appropriate subclass for cooling means,
per se.
Subclass:
832
With switchboard or switch:
This subclass is indented under subclass 829. Subject matter
wherein the frame supports a device for making, breaking, or
changing connections in an electrical circuit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
605 for electrical switchgear in power distribution systems
and devices.
628 for switches in distribution power boards.
828 for switchboard or switches with wire distribution
means.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclass for switches, per se.
Subclass:
833
Fuse block:
This subclass is indented under subclass 600. Subject matter
wherein an insulating base or slab houses a protective
device, usually a short piece of wire but sometimes a
chemical compound which melts and breaks a circuit when a
current exceeds a rated value.
SEE OR SEARCH THIS CLASS, SUBCLASS:
630 for panel boards with fuses.
835 for fuses on pullout devices.
SEE OR SEARCH CLASS:
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclass for fuses, per se.
439, Electrical Connectors, appropriate subclass for fuse
combined with connector arrangements.
Subclass:
834
Plural:
This subclass is indented under subclass 833. Subject matter
wherein two or more fuse blocks are employed.
Subclass:
835
Fuse pullout device:
This subclass is indented under subclass 600. Subject matter
comprising insertion and removal devices for mounting a
current protective device or component in a housing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
833 for fuse blocks of unit construction.
Subclass:
836
For transformer:
This subclass is indented under subclass 600. Subject matter
wherein the housing or mounting assembly is combined with an
electrical device which changes voltage in direct proportion
to a ratio of the number of turns of its primary and
secondary windings.
(1) Note. The electrical housing or mounting assembly may
also contain other electrical components.
SEE OR SEARCH THIS CLASS, SUBCLASS:
603 for power distribution station (substation) housings or
mounting assemblies combined with transformer.
620 for electrical switchgear housing or mounting assembly
with transformer.
623 for electrical power distribution systems housing and
mounting assemblies with distribution or control unit
combined with a transformer.
663 for electrical service meter housing or mounting
assembly with transformer.
SEE OR SEARCH CLASS:
336, Inductor Devices, appropriate subclasses for
transformers, per se.
Subclass:
837
For switch or fuse:
This subclass is indented under subclass 600. Subject matter
wherein the housing or mounting assembly is combined with an
electrical component or device and (a) a mechanical or
electrical device that completes or breaks a path of current
or sends current over a different path or (b) a protective
device, usually a short piece of wire but sometimes a
chemical compound, which melts and breaks a circuit when a
current exceeds a rated value.
SEE OR SEARCH THIS CLASS, SUBCLASS:
605 for electrical switchgear in power distribution systems
and devices.
628 for switches in distribution power boards.
630 for panel boards with fuses.
632 for switchboard or switch in a frame.
828 for switchboard or switches with wire distribution
means.
833 for fuse blocks of unit construction.
835 for fuses on pullout devices.
SEE OR SEARCH CLASS:
174, Electricity: Conductors and Insulators, 52.1 for boxes
or housing containing a switch or fuse and having no
structural details of a switch or fuse.
200, Electricity: Circuit Makers and Breakers, appropriate
subclass for switches, per se.
337, Electricity: Electrothermally or Thermally Actuated
Switches, appropriate subclass for fuses, per se.
FOREIGN ART COLLECTIONS
The definitions of the Foreign Patent/NPL Art Collections
below correspond to the definitions of the abolished
subclasses from which these Collections were formed. See the
Foreign Patent/NPL Art Collection schedule for specific
correspondences.
Subclass: FOR 100
Overvoltage: Foreign art collections including subject matter
wherein the fault sensor is responsive to an overvoltage
condition.
Subclass: FOR 101
With specific current responsive fault sensor: Foreign art
collections including subject matter wherein the fault sensor
responds to an abnormal current condition in the load circuit
and subsequently activates a protective device.
Information Products Division -- Contacts
Questions regarding this report should be directed to:
U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231
tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov
Last Modified: 6 October 2000