US PATENT SUBCLASS 361 / 195
.~.~ Time delay

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

139  DF  CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES {7}
160  DF  .~ For relays or solenoids {11}
195.~.~ Time delay {3}
196  DF  .~.~.~> Including semiconductor device connected to timing element {1}
199  DF  .~.~.~> Including electric discharge device {1}
202  DF  .~.~.~> Electromechanical delay means

DEFINITION

Classification: 361/195

Time delay:

(under subclass 160) Subject matter wherein circuits or devices are included which initiate the operation of the relay a predetermined interval of time after the initiation of a control function.

SEE OR SEARCH CLASS

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

261+, and 392+ for miscellaneous timing and delay circuits, per se.

340, Communications: Electrical,

527+, for a condition responsive signalling system having a time delay circuit.