US PATENT SUBCLASS 335 / 43
.~.~.~ Thermal

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}
43.~.~.~ Thermal {2}
44  DF  .~.~.~.~> Including ambient temperature compensating means
45  DF  .~.~.~.~> With regulating, adjusting or calibrating means

DEFINITION

Classification: 335/43

(under subclass 21) Subject matter wherein the trip structure consists wholly or exclusively of thermally actuated means. The thermal member or members in the device may be inductively heated or directly heated by current in the controlled circuit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

35+, for trip actuating means comprising thermal means plus some additional means such as magnetic, mechanical or manual, operating means.

141+, for other electromagnetically actuated switches combined with thermal current responsive means.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers, 3, for multiple circuit control switches with thermal current combined actuating means.

219, Electric Heating,

494+, for automatically regulated or controlled power supply systems for electric heaters with thermally responsive control means and subclasses 510+ for thermally responsive automatic current connection or disconnection means for heating devices.

337, Electricity: Electrothermally or Thermally Actuated Switches, appropriate subclasses for thermal current actuated switches with latch trip means.

361, Electricity: Electrical Systems and Devices,

1+, for safety and protective systems with thermal control means and subclasses 161+ for electric circuits for relays and electromagnets utilizing thermally actuated means.