Control circuits for electromagnetic devices

For relays or solenoids

Condition responsive (e.g., external circuit condition)

Code responsive

Including electronic element

Fluid (e.g., liquid level, humidity)

Frequency (e.g., audio, radio)

Plural relays or solenoids as loads

Specific frequency responsive relay

Light

Including electronic element

Plural light sensors

Light sensor controls its light path

Plural light sensors

Phase

Proximity or contact

Capacitance change-type

Metal presence or absence responsive

Pulse

Variable impedance

Voltage or current level discriminators

Holding means

Including thermal device

Bimetallic element

Including heater

Thermistor

Thermoelectric

Particular relay or solenoid

Alternating current type

Electrostatic

Plural coils

Polarized

Plural relay or solenoid load selectively operated

Including interlock

Electronic interlock

Plural relays or solenoids sequentially operated

Alternately operated

Pulse responsive

Including electronic element

Plural switches in control circuit

Including electronic switch

Threshold device (e.g., scr, thyratron)

Time delay

Electromechanical delay means

Including electric discharge device

Threshold device (neon tube)

Including thyratron

Including semiconductor device connected to timing element

Threshold device (e.g., zener, schockley diode)

Including three or more electrodes (e.g., unijunction)

With magnetic amplifier or saturable reactor

With oscillator

Including compensation for thermal change of electromagnetic device

Including housing

Including instrument (e.g., meter-relay)

Temperature indicating instrument

Including means for using, or compensating for, the induced emf of the electromagnetic device

Including superconductivity

Systems for magnetizing, demagnetizing, or controlling the magnetic field

Demagnetizing

Magnetic tape

Television degaussing

For lifting or holding

Magnetic chuck-type

Including particular drive circuit

Including means to establish plural distinct current levels (e.g., high, low)

With capacitor charging or discharging through coil

Pulse initiated

With capacitor charging or discharging through coil

Systems for magnetic field stabilization or compensation

With permanent magnet

Calibration or permanent magnet

Control circuits for nonelectromagnetic type relay (e.g., thermal relays)

Demagnetizing systems and processes

Discharging or preventing accumulation of electric charge (e.g., static electricity)

By charged gas irradiation

Of paper or paper handling machine

Of storage or hazardous area or fluid handling

Specific conduction means or dissipator

Brush- or roller-type structure

Rod-type structure

Shoe type

Integral with shoe

Structurally combined with building or vehicle

With external structure of vehicle

Aircraft

Chain-type grounding means

Electric charge generating or conducting means (e.g., charging of gases)

For application to living beings

Modification of environmental electric charge

Use of forces of electric charge or field

Pinning

With specific power supply

Electric charging of objects or materials

By charged gas irradiation

Particulate matter (e.g., liquids with suspended particles)

For spray production

Liquid type

Electrical speed signal processing systems

Antislip detection and circuitry

Including frequency generators

Synchronization of shafts

Phase comparison

Two position (e.g., on-off)

With centrifugal weight means

With speed analog electrical signal

With speed comparison

Electrolytic systems or devices

Coulometer (i.e., electrochemical timer)

Current interruption type (e.g., circuit breaker, d.c.-to-pulse converters)

Double layer electrolytic capacitor

Liquid electrolytic capacitor

Anode type electrode

Aluminum or tantalum

Anode riser

Wound

With common conductor (e.g., stripline)

With heat conductor (e.g., heat sink)

With mounting means (e.g., anchoring means or clamping)

With separator

Casing

With header, cover, or endseal

Significant electrical connection means (e.g., terminals or leads)

With hermetic seal

With vent means

Cathode type electrode (e.g., cathode casing)

Multiple capacitors

With significant electrolyte

Ethylene glycol

Salt solute

With depolarizer

Rectifiers

Solid electrolytic capacitor (e.g., dry electrolytic capacitor)

Anode type electrode

Aluminum or tantalum

Wound

With lead conductor

Casing

With header, cover, or endseal

Significant electrical connection means (e.g., terminals or leads)

With potting

With hermetic seal

Cathode type electrode

With significant lead

Dielectric

Multiple capacitors

With protection means

With significant electrolyte or semiconductor

Organic salt (e.g., tcnq)

Paste or gel

With terminal

Systems (e.g., plural cells, standby exciting voltage)

Electrostatic capacitors

Cryogenic

Fixed capacitor

Details of electrical connection means (e.g., terminal or lead)

For decoupling type capacitor

For multilayer capacitor

Lead attached to edge of capacitor

Cap

Metallized terminal

Wire

Lead extends around at least a portion of capacitor

Lead extends into body of capacitor

Encapsulated

Feed through

Liquid dielectric

Multiple capacitors

Distinct physically

Shared electrode

Significant electrode feature

Material

Non-self-supporting electrodes

Solid dielectric

Ceramic, glass, or oxide particles

Composition

Oxide film

With multilayer ceramic capacitor

Composition

Including metallization coating

With tubular capacitor

Fibrous or fabric (e.g., paper, etc.)

Mica

Plastic

Plural dielectrics

Ceramic and glass

Impregnated

With specific impregnant

Including halogen (e.g., chlorinated)

With stabilizer or modifying substance

Including wax

With stabilizer or modifying substance

Layered

Special type (e.g., "bypass" type)

Stack

Vacuum or gas dielectric

Wound

Variable

Gas or vacuum dielectric

Mechanically variable

By varying distance between electrodes

Compression type

By varying effective area of electrode

Direct travel piston type

Disk trimmer

Piston trimmer

Rotary plates

Details of dielectric

Details of electrical connecting means (e.g., terminal or lead)

Details of plate feature

Plural capacitors

Details of electrical connecting means (e.g., terminal or lead)

Details of insulator feature

Details of mounting means

With adjustment means

With adjustment means

Sliding plates

Spiral or helical plates

Motor driven

Push button

With controlling or indicating means

Responsive to external condition

Electrical

Fluid flow

Humidity

Liquid level

Pressure

By diaphragm

By differential capacitor

By displacement of stylus or lever

Thermal

With significant electrode or terminal feature

With protection or compensating means

For electrical irregularities

With over-pressure breakaway fuse

With resistance element

With thermal fuse

Self-healing

Temperature

With fluid cooling means

With heat sink

Housing or mounting assemblies with diverse electrical components

Contact banks

For electrical power distribution systems and devices

Bus duct

Circuit breaker supporting means (i.e., attaching, mounting, etc.)

Distribution or control panel board

Busbar or conductor arrangements

U-shaped member

With horizontal busbar

With removable or plug-in connection

Plugboards

With circuit breaker arrangements

Plug-in or removable

With discriminating means

With fuses

With switches and fuses

Unit block

With switches

With switch actuating arrangements

Distribution or control unit

Having busbar arrangement

Having fuse or relay

Having transformer

Portable

Distribution station (i.e., substation)

Gas insulated

Having transformer

Electrical service distribution box

Including panel board

Adjustable panel

Busbar arrangements

Spaced parallel relationship

U-shaped member

Circuit breaker supporting arrangements

Having two row arrangement

With discriminating means

With plug-in circuit breakers

With tamper prevention means

Panel board corner mountings

With fuse support means

With switch support means

With fuse

With plastic enclosure or support

With removable member

With switch

Electrical switchgear

Busbar arrangements

Gas insulated

Liquid insulated

With plural removable control units in housing

Drawer type

With interlock

Gas insulated

Having gas circuit breaker

Having isolating switch

Having transformer

Pivoted support means

Truck type

With interlock

With interlock

Door or cover type

Shutter type

For ballast elements

For electricity service meter

Meter mounting arrangements

Adaptable meter supports

Removable cover

Retractable or detachable meter support

Meter terminal and connector arrangements

Adjustable or adaptable contacts

Contact blade receiving structure

Terminal block

Plural

Tamper resistant

With meter circuit controller

Bypass arrangement

With transformer or circuit breaker

With cooling means

Fluid

Air

For electronic systems and devices

Cabinet-type housing

With retractable or readily detachable chassis

Sliding component or commpartment

With locking means or device

Component mounting or support means

Mounting pad

Plural mounting or support

With discrete structure or support

With particular insulation

With passive components

Computer related support

Input/output device support

Memory unit support

Disk drive support

With cooling means

For capacitor and inductor

For relay

For semiconductor device

Including display support

Crt support

Including keyboard support

Lead frame

Matrix assembly

Diode

Module

Plural

Stacked

With coupling or decoupling capacitor

With housing

Having lock or interlock

Interchangeable

Selective connections

With locking means or device

With printed circuit boards

Cordwood type

Welded connection

Guiding means

Ic card or card member

Solder connection

With locking means or device

With particular material

With resistor and capacitor

With spacer

With specific dielectric material or layer

Printed circuit board

Connection of components to board

By direct coating of components on board

Capacitor and resistor

By specific pattern on board

Cross-connected

With specific connection material

Component within printed circuit board

Capacitor and electrical component

Integrated circuit

With specific dielectric material or layer

Different voltage layers

Having passive component

Having semiconductive device

With mounting pad

Having leadless component

Having particular material

Having spacer

Having spring member

With specific lead configuration

Busbar

Flexible connecting lead

Shaped lead on board

Shaped lead on components

With switch

Flexible board

With particular conductive material or coating

With specific dielectric material or layer

Plural

Interconnection details

Plural contiguous boards

Plural dielectric layers

Power, voltage, or current layer

Thick film component or material

Spacer details

With housing or chassis

Grounding construction or detail

Specific alignment or guide means

Specific latching or retaining device

Storage or file cabinet

With ejector or extractor

With shielding structure

With separable connector or socket means

Having backplane connection

Having flexible connector

Having key connection

Having spring member

Multiple contact pins

Stacked

With housing or chassis

Guiding means

Rotatable

Specific chassis or ground

With ejector means

With lock or interlock

With particular material

With spacer

Radio type

Tube mounting

Shielding

Emi

For electronic tube

With cooling means

Fluid

Air

And liquid

Plural openings

Circular

Pressurized or conditioned

With air circulating means

Fan or blower

With heat exchanger unit

With heat sink or cooling fins

Liquid

Change of physical state

With cold plate or heat sink

With cooling fins

With heat exchanger unit

Thermal conduction

By specific coating

Containing silicon or aluminum

For active solid state devices

For integrated circuit

Circuit board mounted

For electronic circuit

For lead frame

For module

Plural

For printed circuit board

Plural

Through component housing

Through support means

Electrically insulating thermally conductive

Heat sink

Cooling plate or bar

Details

Specific chemical compound or element

Thermally and electrically conductive

For switch or fuse

For transformer

Frame

With cooling means

With plurality of capacitors

With switchboard or switch

Fuse block

Plural

Fuse pullout device

Support brackets

Terminal block

With protective device or unit

Wire distribution (e.g., harness, rack, etc.)

With interconnecting cable

With switchboard or switch

Igniting systems

For electric spark ignition

With capacitor discharge into spark gap

With capacitor discharging into sparking transformer

With electromagnet control means

Including spark electrode make-break

With electromechanical generator

With permanent magnet

With piezoelectric element

With mechanical arrangement for spark electrode make-break

With one spark electrode which is hand held

With spark coil or transformer

For explosive devices

With capacitor discharging into explosive device

With electromechanical power source

With sequential firing by electronic switching

With sequential firing by mechanical switching

For incandescent ignition

With electromagnet control means

With helical heating element

Miscellaneous

Polarity reversing

Automatic

Safety and protection of systems and devices (361/1)

Safety and protection of systems and devices (361/1)

With specific voltage responsive fault sensor (361/88)

Safety and protection of systems and devices

Arc suppression at switching point (i.e., includes solid-state switch)

Arc blowout for main breaker contact (e.g., electromagnet, gas, fluid, etc.)

By inserting series impedance

By arc stretching (e.g., horn gap)

Nonlinear impedance

Shunt bypass of main switch

Synchronized or sequential opening or closing

Counter electromotive force

Shunt bypass

With sequentially inserted impedance

With combined voltage and current sensitive control circuit

With current sensitive control circuit

With voltage sensitive control circuit

Automatic reclosing

Continuous

With time delay before reclosing

With lockout means

Including timer reset before lockout

By regulating source or load (e.g., generator field killed)

Prime mover control

Capacitor protection

Series connected capacitors

Shunt connected capacitors

Circuit automatically reconnected only after the fault is cleared

Reclosing of the nonfaulty phases of a polyphase system

With differential voltage comparison across the circuit interrupting means

Circuit interruption by thermal sensing

With bimetallic element

With fuse

With thermistor

Compressor protective circuits

Feeder protection in distribution networks

With current and voltage responsive fault sensors

With communication between feeder disconnect points

With current responsive fault sensor

With communication between feeder disconnect points

Generator protective circuits

Voltage responsive

Ground fault protection

Fault suppression (e.g., petersen coil)

In a polyphase system

With more than three wires

In a single phase system

With more than two wires

With differential sensing in a polyphase system

With differential sensing in a single phase system

With more than two wires

High voltage dissipation (e.g., lightning arrester)

Combined (e.g., with disconnect switch)

With line supporting insulator

Current limiting material in discharge path

Nonlinear material (e.g., valve type)

With plural gaps in discharge path

Fluid (e.g., mercury, quenching)

Electrolytic

Gas blast

Horn gap

With resistance insertion

Plural gaps serially connected

Plural gaps with common electrode

Surge prevention (e.g., choke coil)

In communication systems

Thermal (e.g., fusible, bimetallic)

With cutout (e.g., blowout type)

Vacuum or gas filled space discharge

With magnetic means (e.g., electromagnet)

Arc stretching (e.g., blowout)

By separating contacts

For grounding line

Impedance insertion

Load shunting by fault responsive means (e.g., crowbar circuit)

Current responsive

Disconnect after shunting

Voltage responsive

Motor protective condition responsive circuits

Current and temperature

Current and voltage

Current

Bimetallic element

Motor temperature

With bimetallic sensor

With thermistor sensor

Voltage

Bimetallic element

With time delay

During energization of motor

Overspeed responsive

Reverse phase responsive

Series connected sections with faulty section disconnect

Constant current system

With communication between disconnect points

Pilot wire communication

Superconductor protective circuits

Too large fault makes breaker inoperative

Transformer protection

Transformer with structurally combined protective device

With fuse

With lightning arrester (e.g., spark gap)

With lightning arrester and fuse

With differential sensing means

With temperature or pressure sensing means

Transient nonresponsive (e.g., ignores surge on transmission line)

Transient responsive

Voltage regulator protective circuits

With manual or automatic opening of breaker and manual reclose

With phase sequence network analyzer

With space discharge means

With specific circuit breaker or control structure

Pneumatically operated circuit breaker

With specific current responsive fault sensor

Automatic reset after trip

Current limiting

Digital control

Rating plug

Resistor sensor

Thermal sensing

Transformer and resistor sensors

Transformer sensor (i.e., toroidal current sensor)

With mechanical circuit breaker

With semiconductor circuit interrupter (e.g., scr, triac, tunnel diode, etc.)

With transistor circuit interrupter

With time delay protective means

Combined thermal-electromagnetic relay

Transistorized

With instantaneous override

With multiple timing characteristics (e.g., short, long)

With multiple timing characteristics

With specific quantity comparison means

Current

Phase

Reverse energy responsive (e.g., directional)

Voltage and current

Distance relaying

With communication means between disconnect points

Reverse energy responsive (e.g., directional)

With time delay protective means

Voltage

With specific transmission line (e.g., guarded)

Plural conductors in single sheath (e.g., compound)

With specific voltage responsive fault sensor

Overvoltage and undervoltage

Overvoltage

Including p-n junction (e.g., a diode, a zener diode, or transistor)

With zener diode sensor

Including photo-coupling (e.g., photo-receptors, photo-emitters, etc.)

Including time delay

Protection by snubber circuitry

Protection for thyristor

With resistor sensor

Undervoltage

With time delay protective means

With tuned circuit

Transformers and inductors with integral switch, capacitor, or lock (e.g., ignition coil)

With capacitor element

With lock for preventing unauthorized use