US PATENT SUBCLASS 337 / 352
.~.~.~.~ With frictional clutch drive means

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

298  DF  THERMALLY ACTUATED SWITCHES {7}
333  DF  .~ With bimetallic element {9}
334  DF  .~.~ With manual or other mechanical contact control means {10}
351  DF  .~.~.~ Rotary or oscillatory motion means {2}
352.~.~.~.~ With frictional clutch drive means

DEFINITION

Classification: 337/352

(under subclass 351) Subject matter wherein the mechanical control means includes at least one clutch or other frictional coupling means whereby the rotary torque generated by a thermal responsive device is transmitted to the contact control means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

387, for similar subject matter in a thermally actuated switch utilizing longitudinally expansible solid elements.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

180, for automatic telephone type switches with clutch means in the rotary selector structure.

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

74+, for motor operated electromagnetic switches with a brake or clutch in the contact operating means.