US PATENT SUBCLASS 337 / 388
.~.~.~ With spring or other energy storage means

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

298  DF  THERMALLY ACTUATED SWITCHES {7}
382  DF  .~ With longitudinally expansible solid element {7}
384  DF  .~.~ With manual or other mechanical contact control means {4}
388.~.~.~ With spring or other energy storage means {2}
389  DF  .~.~.~.~> Comprising resilient leaf spring
390  DF  .~.~.~.~> Snap-action {1}

DEFINITION

Classification: 337/388

(under subclass 384) Subject matter including spring or other potential energy storage means; whereby a major portion of the force used in actuating the contacts of the switch from one condition to another is derived independently of the thermal responsive device. Generally the movement of the movable contact in one direction is directly responsive to action by the thermal responsive element and in the other direction directly responsive to the tendency of the spring to resume its unstressed condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

52+, for similar subject matter in electrothermally responsive bimetallic element actuated switches.

317+, for thermal, expansible fluid switch with operating mechanism having spring or other energy storage means.

342+, for similar subject matter in thermally responsive

bimetallic element actuated switches.

407+, for fusible material element switch with operating mechanism having spring or other energy storage means.