US PATENT SUBCLASS 361 / 83-- .~.~.~ With time delay protective means

US PATENT SUBCLASS 361 / 83
.~.~.~ With time delay protective means

Current as of: June, 1999
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361 /	HD	ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

1	DF	SAFETY AND PROTECTION OF SYSTEMS AND DEVICES {32}
78	DF	.~ With specific quantity comparison means {5}
79	DF	.~.~ Voltage and current {3}
83		.~.~.~ With time delay protective means

DEFINITION

Classification: 361/83

With time delay protective means:

(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,

141, for time delay circuits in switching circuits.