US PATENT SUBCLASS 337 / 309
.~.~ Multiple contacts or external circuit completion means

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


337 /   HD   ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES

298  DF  THERMALLY ACTUATED SWITCHES {7}
306  DF  .~ Expansible or vaporizable fluid actuated {12}
309.~.~ Multiple contacts or external circuit completion means {2}
310  DF  .~.~.~> Plural independent switches
311  DF  .~.~.~> Selective, sequentially or alternately actuated

DEFINITION

Classification: 337/309

(under subclass 306) Subject matter including a plurality (three or more) of contacts associated with a single continuous electric circuit to be controlled or includes means whereby two or more continuous electric circuits are controlled by the contact controlling means. See (1) Note under the definition of subclass 41, above.

SEE OR SEARCH THIS CLASS, SUBCLASS:

86+, for similar subject matter in devices utilizing electrothermally responsive bimetallic elements directly controlling a plurality of contacts.

145+, for similar subject matter utilizing electrothermally responsive fusible elements.

337+, for thermally responsive bimetallic elements controlling plural contacts.