US PATENT SUBCLASS 476 / 30
.~.~.~ Friction gearing is stepless ratio change

Current as of: June, 1999
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476 /   HD   FRICTION GEAR TRANSMISSION SYSTEMS OR COMPONENTS

27  DF  PLURAL GEARING IN SERIES {5}
28  DF  .~ Flexible belt in drive train {1}
29  DF  .~.~ Friction gearing is ratio change gearing {1}
30.~.~.~ Friction gearing is stepless ratio change

DEFINITION

Classification: 476/30

Friction gearing is stepless ratio change:

(under subclass 29) Subject matter wherein said rotational velocity is varied in an infinite number of increments. [figure]