US PATENT SUBCLASS 361 / 91.3
.~.~.~ Including 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}
88  DF  .~ With specific voltage responsive fault sensor {4}
91.1  DF  .~.~ Overvoltage {6}
91.3.~.~.~ Including time delay

DEFINITION

Classification: 361/91.3

Including time delay:

(under subclass 91.1) Subject matter wherein the overvoltage condition is detected and/or the fault is removed after a predetermined time period utilizing time delay circuitry.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28+, for abnormal voltage conditions in motor circuits wherein the protective circuit responds to a fault condition after a predetermined time period.

195, for relay or solenoids safety or protection device including time delay.

SEE OR SEARCH CLASS

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

392, for circuitry having a fixed or single time delay controlled switch. 335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

28, for electromagnetically actuated switches with combined timing or delay means.

337, Electricity: Electrothermally or Thermally Actuated Switches,

81, and subclass 88 for retarded or delayed action thermally actuated switch.

340, Communications: Electrical,

527, for humanly perceptible means responsive to time delay.