US PATENT SUBCLASS 337 / 67
.~.~.~ With contact pressure maintaining or adjusting means

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

14  DF  ELECTROTHERMALLY ACTUATED SWITCHES {9}
36  DF  .~ With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis) {10}
37  DF  .~.~ With manual or other mechanical contact controlling means {12}
67.~.~.~ With contact pressure maintaining or adjusting means

DEFINITION

Classification: 337/67

(under subclass 37) Subject matter wherein the contact controlling structure includes significant details of means whereby a predetermined or constant pressure is applied to the contacts while in the circuit closing position or whereby such contact pressure may be adjusted at will.

SEE OR SEARCH THIS CLASS, SUBCLASS:

349, for similar devices utilizing thermally responsive bimetallic devices.

SEE OR SEARCH CLASS

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

194+, for contact pressure maintaining or adjusting means for electromagnetically operated switches.