US PATENT SUBCLASS 474 / 81
.~.~.~ For shifting belt from both power input and power output pulleys

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

69  DF  CONTROL FOR VARIABLE INPUT TO OUTPUT SPEED-RATIO {7}
78  DF  .~ Including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter {2}
80  DF  .~.~ And including belt-shifter mechanism {2}
81.~.~.~ For shifting belt from both power input and power output pulleys

DEFINITION

Classification: 474/81

For shifting belt from both power input and power output pulleys:

(under subclass 80) Subject matter wherein the belt*-moving device includes structure for moving the belt along spaced parallel axes in a direction parallel to the longitudinal extent of the axes, one of the axes being the rotational axis of a pulley* or pulleys for the driving belt, and the other of the axes being the rotational axis of a pulley or pulleys driven by the belt. [figure]