US PATENT SUBCLASS 337 / 132
.~.~.~.~ With toggle spring

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

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
123  DF  .~ With longitudinally expansible solid element (e.g., rod, wire strip, etc.) {7}
126  DF  .~.~ With manual or other mechanical contact actuating means {3}
131  DF  .~.~.~ Snap-action (e.g., bistable) {4}
132.~.~.~.~ With toggle spring

DEFINITION

Classification: 337/132

(under subclass 131) Subject matter wherein the snap action structure comprises means comprising a toggle point influenced by a tensioned spring whereby when force is applied to a knee of the joint the energy of the spring is applied to open or close an electric circuit through a moveable contact. The spring in itself by its connection to a rigid element may form the only toggle joint.

SEE OR SEARCH THIS CLASS, SUBCLASS:

59, for electrothermally responsive bimetallic element actuated switches with toggle.

345, for similar devices utilizing thermally responsive bimetallic means.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

520+, for toggle linkages, per se. 200, Electricity: Circuit Makers and Breakers,

401, for quick make and break switches that may utilize toggles.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

191, for electromagnetic switch actuating mechanism comprising toggle means.