US PATENT SUBCLASS 337 / 85
.~.~ Bimetallic element unitary with or directly actuates movable contact means

Current as of: June, 1999
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337 /   HD   ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
36  DF  .~ With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis) {10}
85.~.~ Bimetallic element unitary with or directly actuates movable contact means {6}
86  DF  .~.~.~> Plural contacts or external circuit connection means {1}
88  DF  .~.~.~> Retarded or delayed type
89  DF  .~.~.~> Snap-action {2}
92  DF  .~.~.~> Cyclic or repetitively operative (e.g., flashing) {1}
94  DF  .~.~.~> With operating range, calibration or adjusting means
95  DF  .~.~.~> With plural or combined elements {1}

DEFINITION

Classification: 337/85

(under subclass 38) Subject matter wherein the bimetallic element operated switch consists of at least one bimetallic element with direct connection to a movable contact; which contact makes or breaks an electrical circuit under the influence of, or as a result of, the thermal current through the element. Generally, both the bimetallic element and the fixed contact are series connected in the controlled circuit when in a closed circuit condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

362+, for similar devices with thermally actuated bimetallic elements.

SEE OR SEARCH CLASS

219, Electric Heating,

510+, for electric heaters with thermally responsive automatic switch means in the supply circuit which may comprise a bimetallic element directly controlling a movable contact.

307, Electrical Transmission or Interconnection Systems, 117, for heat responsive switching systems utilizing bimetallic elements directly operating a movable contact.

361, Electricity: Electrical Systems and Devices,

23+, 26, 99, 103+, and 161+ for protection systems and devices or electric circuits for relays and electromagnets

which utilize bimetallic elements directly controlling at least one movable contact.