US PATENT SUBCLASS 337 / 342
.~.~.~ With spring or other energy storage 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}
333  DF  .~ With bimetallic element {9}
334  DF  .~.~ With manual or other mechanical contact control means {10}
342.~.~.~ With spring or other energy storage means {1}
343  DF  .~.~.~.~> Snap-action {5}

DEFINITION

Classification: 337/342

(under subclass 334) Subject matter wherein the structure includes spring or other potential energy storage means whereby a major portion of the force exerted in actuating the contacts of the switch from one condition to another is derived. The actuating force is usually transmitted to the movable contact structure through mechanical means upon the spring being released from its energy storage position.

(1) Note. For other spring or energy storage means used in devices of this class, see the subclasses listed under SEARCH THIS CLASS, SUBCLASS in subclass 317.

SEE OR SEARCH THIS CLASS, SUBCLASS:

52+, for corresponding subject matter in an electrothermally

actuated switch. See (1) Note above.

349, for contact biasing, pressure control or adjusting means.