US PATENT SUBCLASS 335 / 30
.~.~.~.~.~ Mechanical motor-controlled (e.g., clock movement)

Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
6  DF  .~ Automatic circuit-interrupting devices (e.g., circuit-protective devices) {12}
21  DF  .~.~ With latch or trip means {6}
26  DF  .~.~.~ Reclosing or resetting {2}
28  DF  .~.~.~.~ Automatic combined with timing or delay means {4}
30.~.~.~.~.~ Mechanical motor-controlled (e.g., clock movement)

DEFINITION

Classification: 335/30

(under subclass 28) Subject matter wherein the delay structure includes means whereby the time interval between the opening of the contacts and the reclosing thereof, the resetting of the latch, or the permanent opening (lockout) of the main contacts is controlled by a mechanical motor means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

64+, for electromagnetically actuated switches of the retarded or delayed type utilizing a motor or motor controlled means.

139, for step-by-step switch clock mechanism timing means.

239+, for electromagnets with time delay armature movement control means.

SEE OR SEARCH CLASS

178, Telegraphy, 76, for retarded circuit closers peculiar to telegraph circuits.

200, Electricity: Circuit Makers and Breakers,

35+, for nonelectromagnetically operated switches of the retarded type and utilizing clocks, clock trains or similar gearing as a retarding means.

307, Electrical Transmission or Interconnection Systems,

141+, for a switching system including a time delay or retardation means for controlling a switch actuation and which may include motor means.

337, Electricity: Electrothermally or Thermally Actuated Switches,

51, 81, 88, 127, 163, and 301 for electrothermal or thermally controlled switches with timing means which may be time controlled.

361, Electricity: Electrical Systems and Devices,

71+, for systems including circuit breakers with time delay means including clock work.