US PATENT SUBCLASS 340 / 693.1
.~ Specified power supply

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
693.1.~ Specified power supply {3}
693.2  DF  .~.~> Substitute or emergency source (e.g., back-up battery)
693.3  DF  .~.~> Having reduced power consumption (e.g., intermittent power)
693.4  DF  .~.~> Having specified voltage regulator

DEFINITION

Classification: 340/693.1

Specified power supply:

(under subclass 500) Subject matter wherein either some portion of the energizing supply, or a function of the energizing supply in addition to energization, is particularly described.

(1) Note. Power supplies included by name only are not classified herein.

(2) Note. The additional function referred to above is generally to cope with a particular problem, e.g., switching to an alternate power supply upon failure of the main power supply.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,43+, for plural supply circuits or sources for electrical transmission or interconnection in general.

327, Miscellaneous ActiveElectrical Nonlinear Devices, Circuits, or Systems,530+, for a specific transistor circuitry source of supply or bias voltage.

361, Electricity: Electrical Systems and Devices,1+, for a power supply with a safety feature; and subclasses 600+ for a housing having diverse electrical components.

363, Electric Power Conversion Systems, for power supply conversion (e.g., A.C. to D.C.), generally.