US PATENT SUBCLASS 180 / 221
.~.~.~ Including rotating element for frictionally engaging and driving a wheel

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


180 /   HD   MOTOR VEHICLES

21  DF  SPECIAL WHEEL BASE {6}
218  DF  .~ Having only two wheels {1}
219  DF  .~.~ Arranged in tandem {10}
221.~.~.~ Including rotating element for frictionally engaging and driving a wheel {1}
222  DF  .~.~.~.~> And means for steering that wheel

DEFINITION

Classification: 180/221

Including rotating element for frictionally engaging and driving a wheel:

(under subclass 219) Vehicle which includes, as a component of a means for transmitting the driving effort of the vehicle's motor to one of its wheels, a rotating element (e.g., a roller) which causes the wheel to rotate when pressed into engagement with it or with a component (e.g., rim, tire) thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

342+, for a motor vehicle, generally, which includes mechanism for transmitting driving effort to a wheel and wherein the mechanism includes a rotating element which drives the wheel by frictionally engaging it.