US PATENT SUBCLASS 474 / 49
.~ Structure for variably adjusting radius of rim section

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

47  DF  PULLEY WITH EXPANSIBLE RIM MEANS OR PULLEYS WITH ALTERNATELY USEABLE NESTABLE RIMS {2}
49.~ Structure for variably adjusting radius of rim section {5}
50  DF  .~.~> By actuator responsive to speed or load
51  DF  .~.~> By fluid pressure actuator or inflatable rim
52  DF  .~.~> Including means interconnecting plural pulleys for simultaneous adjustment {1}
54  DF  .~.~> By actuator having collar concentric with, and movable axially on, pulley axis {1}
56  DF  .~.~> By actuator having collar concentric with, and rotatable in plane perpendicular to pulley axis {1}

DEFINITION

Classification: 474/49

Structure for variably adjusting radius of rim section:

(under subclass 47) Subject matter including motion-inducing mechanism for moving the belt*-engaging surface or surfaces of the pulley* radially outward. [figure]