US PATENT SUBCLASS 337 / 138
.~.~ Cyclically or periodically operated (e.g., flasher)

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}
138.~.~ Cyclically or periodically operated (e.g., flasher)

DEFINITION

Classification: 337/138

(under subclass 123) Subject matter wherein the structure is specifically recited as consisting of a device comprising means whereby an electrical circuit is completed and broken intermittently or cyclically at constantly recurring intervals under the influence of an electrothermally responsive deformable solid element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

51, for electrothermally responsive bimetallic element actuated switches, cyclically operative by mechanical means. Also consult the search notes, for a list of classes containing similar subject matter.

92+, for similar devices actuated by a bimetallic element directly.

116, for similar devices actuated by expansible or vaporizable fluid actuating means.

302, for thermally actuated switches periodically or cyclically operative by mechanical timing means. 369, for switches significantly recited as actuated by a thermally responsive bimetallic element directly.