US PATENT SUBCLASS 361 / 28
.~.~ With time delay

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}
23  DF  .~ Motor protective condition responsive circuits {6}
28.~.~ With time delay {1}
29  DF  .~.~.~> During energization of motor

DEFINITION

Classification: 361/28

With time delay:

(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, 141, for time delay circuits in switching circuits.