US PATENT SUBCLASS 200 / 500
HELICAL DRIVE MECHANISM

Current as of: June, 1999
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200 /   HD   ELECTRICITY: CIRCUIT MAKERS AND BREAKERS

500HELICAL DRIVE MECHANISM

DEFINITION

Classification: 200/500

Helical drive mechanism:

(under the class definition) Subject matter wherein the opening or closing of an electrical circuit is operated by a helical element.

(1) Note. The helical drive mechanism may include rack and pinions, worm drive devices, screw-type drive or helical grooves on the driving shaft.