US PATENT SUBCLASS 337 / 391
.~.~.~.~.~ With flexible vane or plate

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  DF  .~.~.~ With spring or other energy storage means {2}
390  DF  .~.~.~.~ Snap-action {1}
391.~.~.~.~.~ With flexible vane or plate

DEFINITION

Classification: 337/391

(under subclass 390) Subject matter including significant details of a flexible vane or plate means whereby the snapping action of the contacts is caused to take place. The vane or plate may control the action of a movable contact, or

contacts, by its inherent tendency to change curvature when heated or it may be under the influence of a further temperature responsive element such as a wire or ribbon which exerts a deforming force on the vane or plate when cold and releases the force when expanded by heat.

SEE OR SEARCH THIS CLASS, SUBCLASS:

135+, for similar subject matter in electrothermally actuated switches with longitudinally expansible elements.