Class   307	ELECTRICAL TRANSMISSION OR INTERCONNECTION SYSTEMS
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SUPERIMPOSED UNLIKE CURRENTS

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. (1 indent ) AC and DC sources

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. (1 indent ) Different frequencies or phase

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. (1 indent ) Different voltages

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.. (2 indent ) Series-connected

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... (3 indent ) Plural converters

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.... (4 indent ) Induction transformer

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... (3 indent ) Plural generators

9.1

VEHICLE MOUNTED SYSTEMS

10.1

. (1 indent ) Automobile

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.. (2 indent ) Antitheft

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... (3 indent ) Ignition or starting circuit lock

10.4

.... (4 indent ) Manual code input (e.g., push button)

10.5

.... (4 indent ) Coded record input (e.g., IC card)

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.. (2 indent ) Ignition or starter circuits

10.7

.. (2 indent ) Battery protection

10.8

.. (2 indent ) Lighting circuits

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PLURAL LOAD CIRCUIT SYSTEMS

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. (1 indent ) Common conductor or return type

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.. (2 indent ) Polyphase

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... (3 indent ) Phase balancing

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.. (2 indent ) Voltage divider type

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.. (2 indent ) Plural output generators

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. (1 indent ) Transformer connections

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. (1 indent ) Plural sources of supply

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.. (2 indent ) Interconnected for energy transfer

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... (3 indent ) With control of magnitude of energy transfer

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... (3 indent ) Diverse sources

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.... (4 indent ) AC and DC

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.. (2 indent ) Substitute or alternate source

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.. (2 indent ) With control of magnitude of current or power

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.. (2 indent ) Diverse sources

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... (3 indent ) AC and DC

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... (3 indent ) Different frequencies

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... (3 indent ) Different voltages

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.. (2 indent ) Selectively connected loads and/or sources

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. (1 indent ) Anticoupling of load circuits through same source

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. (1 indent ) Control of current or power

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.. (2 indent ) Load current proportioning or dividing

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.. (2 indent ) Constant magnitude control

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... (3 indent ) By control of one or more load circuits

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.. (2 indent ) Limit control

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. (1 indent ) Serially connected load circuits

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.. (2 indent ) Selective series-parallel connections

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. (1 indent ) Selectively connected or controlled load circuits

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.. (2 indent ) Condition responsive

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.. (2 indent ) Code-controlled

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.. (2 indent ) Sequential or alternating

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. (1 indent ) Circuit arrangements or layouts

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PLURAL SUPPLY CIRCUITS OR SOURCES

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. (1 indent ) One source floats across or compensates for other source

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.. (2 indent ) With intervening converter

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... (3 indent ) Storage battery or accumulator-type source

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.. (2 indent ) Dynamoelectric-type source

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.. (2 indent ) Storage battery or accumulator-type source

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... (3 indent ) With series-connected auxiliary source

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... (3 indent ) Tap-changing or variable number of cells

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. (1 indent ) Circulating- or inter-current control or prevention

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. (1 indent ) Load current control

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.. (2 indent ) Load current division

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... (3 indent ) Serially connected sources

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... (3 indent ) Fixed or predetermined ratio

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.... (4 indent ) Diverse-or unlike-type sources

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.... (4 indent ) Plural generators

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.... (4 indent ) Plural converters

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... (3 indent ) Peak or excess load

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.. (2 indent ) Constant load or current

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... (3 indent ) Serially connected sources

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.. (2 indent ) Load-limiting

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.. (2 indent ) Serially connected sources

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. (1 indent ) Substitute or emergency source

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.. (2 indent ) Plural substitute sources

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.. (2 indent ) Storage battery or accumulator

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... (3 indent ) With intervening dynamoelectric machine

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.. (2 indent ) Dynamoelectric

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. (1 indent ) Sources distributed along load circuit

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. (1 indent ) Load transfer without paralleling sources

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. (1 indent ) Series-parallel connection of sources

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. (1 indent ) Diverse or unlike electrical characteristics

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.. (2 indent ) Differing frequencies

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.. (2 indent ) Differing capacities

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.. (2 indent ) Differing voltages

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... (3 indent ) Generator sources

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. (1 indent ) Series-connected sources

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.. (2 indent ) Generator sources

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. (1 indent ) Selective or optional sources

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.. (2 indent ) Predetermined sequence

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. (1 indent ) Plural converters

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. (1 indent ) Plural transformers

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. (1 indent ) Plural generators

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. (1 indent ) Connecting or disconnecting

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.. (2 indent ) Condition responsive

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... (3 indent ) Attainment of voltage, frequency or phase relationship

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ELECTRETS

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NONLINEAR REACTOR SYSTEMS (E.G., SATURABLE)

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. (1 indent ) Parametrons

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.. (2 indent ) Thin film parametrons

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.. (2 indent ) Using logic circuits

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.. (2 indent ) Using pump energizer

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. (1 indent ) Magnetic flip-flops

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. (1 indent ) Logic circuits

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.. (2 indent ) Multiaperture

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.. (2 indent ) Clocking, delay or transmission line

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.. (2 indent ) Nor, Not logic circuit

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.. (2 indent ) Exclusive Or, And logic circuit

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. (1 indent ) Driver circuits

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. (1 indent ) Signal sensor (e.g., current or frequency)

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. (1 indent ) Magnetic trigger devices

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. (1 indent ) Magnetic switching circuits

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. (1 indent ) Amplifiers using nonlinear reactors (i.e., magnetic amplifiers)

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.. (2 indent ) With transistors

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.. (2 indent ) With feedback

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. (1 indent ) Magnetic pulse generator

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.. (2 indent ) Using multivibrator

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.. (2 indent ) With specified output waveform

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. (1 indent ) Multiaperture

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.. (2 indent ) Three apertures or ladder

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. (1 indent ) Parametric frequency converter

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PERSONNEL SAFETY OR LIMIT CONTROL FEATURES

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. (1 indent ) Parasitic current suppression

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. (1 indent ) Interlock

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ANTI-INDUCTION OR COUPLING TO OTHER SYSTEMS

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. (1 indent ) Inducing current control

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. (1 indent ) Magnetic or electrostatic field control (e.g., shielding)

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ANTI-ELECTROLYSIS

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INTERMITTENT REGULATORY INTERRUPTION OF SYSTEM

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. (1 indent ) Condition responsive

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COMBINED IMPEDANCE AND SWITCH SYSTEMS

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. (1 indent ) Condition responsive switch

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SHUNTING OR SHORT CIRCUITING SYSTEMS

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RESIDUAL OR REMANENT MAGNETISM CONTROL

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STABILIZED, ANTI-HUNTING OR ANTIOSCILLATION SYSTEMS

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WITH LINE DROP COMPENSATION

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ELECTROMAGNET OR HIGHLY INDUCTIVE SYSTEMS

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WITH HARMONIC FILTER OR NEUTRALIZER

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WAVE FORM OR WAVE SHAPE DETERMINATIVE OR PULSE-PRODUCING SYSTEMS

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. (1 indent ) With rectification or derectification

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. (1 indent ) With capacitor

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CAPACITOR

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. (1 indent ) Parallel-charge, series-discharge (e.g., voltage doublers)

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NONRESPONSIVE-TO-FREQUENCY-CHANGE SYSTEMS

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WITH NONSWITCHING MEANS RESPONSIVE TO EXTERNAL NONELECTRICAL CONDITION

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. (1 indent ) Temperature responsive

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. (1 indent ) Responsive to approach or passage of an object

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. (1 indent ) Flame responsive (e.g., flame acts as a rectifier in circuit)

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SWITCHING SYSTEMS

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. (1 indent ) Plural switches

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.. (2 indent ) Lazy-man switch type

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.. (2 indent ) Selectively actuated

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. (1 indent ) Condition responsive

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.. (2 indent ) Light, heat, vibratory or radiant energy

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.. (2 indent ) Fluid pressure, density, level, velocity or humidity

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.. (2 indent ) Mechanical force

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... (3 indent ) Speed, centrifugal or kinetic force

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.... (4 indent ) Inertia or acceleration

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.... (4 indent ) Direction of rotation

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.... (4 indent ) Differential speed between two bodies

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.... (4 indent ) Torque

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.. (2 indent ) Electrical

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... (3 indent ) Power or energy

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... (3 indent ) Polarity, phase sequence or reverse flow

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... (3 indent ) AC or DC discriminating

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... (3 indent ) Frequency

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... (3 indent ) Voltage

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... (3 indent ) Current

132R

. (1 indent ) Repetitive make and break

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.. (2 indent ) Electronically controlled relay

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... (3 indent ) Responsive to physical condition

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.. (2 indent ) Thermal relay

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.. (2 indent ) Vibrating relay

132M

.. (2 indent ) Miscellaneous

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. (1 indent ) With operation facilitating feature

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.. (2 indent ) Preliminary reduction in current or voltage of system

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.. (2 indent ) Switch contact conditioning

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... (3 indent ) Polarity reversing

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. (1 indent ) Switch actuation

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.. (2 indent ) Power circuit controlled

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.. (2 indent ) With time delay or retardation means

141.4

... (3 indent ) Electrically initiated

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... (3 indent ) Series connected switches

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.. (2 indent ) With locking, holding or braking means

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.. (2 indent ) Electrical actuator

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.. (2 indent ) Fluid-pressure actuator

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WITH CURRENT COLLECTION OR TRANSFER

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UNIDIRECTIONAL CONDUCTOR SYSTEMS

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CONDUCTOR ARRANGEMENTS OR STRUCTURE

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. (1 indent ) Multipart-conductor current equalization

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MISCELLANEOUS SYSTEMS

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. (1 indent ) Power packs

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. (1 indent ) Conversion systems

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. (1 indent ) Rate of change responsive systems

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. (1 indent ) Generator control systems

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. (1 indent ) For particular load device

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.. (2 indent ) Plural diverse load devices

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... (3 indent ) Structural load device combinations

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.. (2 indent ) Lamp or discharge device

	FOREIGN ART COLLECTIONS

FOR000

CLASS-RELATED FOREIGN DOCUMENTS

	DIGESTS

DIG1

DATA TRANSMITTED OVER POWER LINES

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