US PATENT SUBCLASS 474 / 12
.~.~ And load responsive

Current as of: June, 1999
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474 /   HD   ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS

8  DF  PULLEY WITH BELT-RECEIVING GROOVE FORMED BY DRIVE FACES ON RELATIVELY AXIALLY MOVABLE COAXIAL CONFRONTING MEMBERS (E.G., EXPANSIBLE CONE PULLEY, ETC.) {13}
11  DF  .~ Speed responsive {2}
12.~.~ And load responsive

DEFINITION

Classification: 474/12

And load responsive:

(under subclass 11) Subject matter further including means for sensing resistance to movement or change in resistance to movement of a load device or of a member in a drive train to drive the load device; and, in response to such sensed resistance or change of resistance to movement, said means acts to alter the relative axial position of said components.

SEE OR SEARCH THIS CLASS, SUBCLASS:

17+, 50, 70, and 109, for other arrangements using a load responsive actuator in a belt and pulley drive system. [figure]