US PATENT SUBCLASS 200 / 240
.~.~.~ With subsequent rolling

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

237  DF  ELECTRIC SWITCH DETAILS {5}
238  DF  .~ Contact {17}
239  DF  .~.~ Abutting type {8}
240.~.~.~ With subsequent rolling

DEFINITION

Classification: 200/240

(under subclass 239) Subject matter, wherein the engagement of the contacts by abutting is followed immediately by a rolling motion between the contacts, generally due to the curvature of at least one of the contacts. This rolling motion precludes any wiping or sliding movement between the contacts.

SEE OR SEARCH THIS CLASS, SUBCLASS:

241, for "Subsequent Sliding" movement.