Endless belt power transmission systems or components – Control for variable input to output speed-ratio – Including belt shiftable axially from one to another surface...
Reexamination Certificate
2006-10-17
2006-10-17
Johnson, Vicky A. (Department: 3682)
Endless belt power transmission systems or components
Control for variable input to output speed-ratio
Including belt shiftable axially from one to another surface...
Reexamination Certificate
active
07121968
ABSTRACT:
A system for controlling gear shifting in a transmission of a cycle, includes at least one gear wheel or sprocket on which a transmission element is engaged to perform transmission of motion as a result of movement in a predetermined direction. The gear shifting is carried out by changing the position of engagement of the transmission member with respect to the at least one gear wheel or sprocket. The system further includes at least one sensor for detecting the movement in corresponding direction of movement of the motion transmitting element for generating a signal and a control unit for controlling the change of the position of the element for transmitting motion with respect to the at least one gear wheel or sprocket when the signal indicates that the element for transmitting motion is moving in the given direction.
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Campagnolo Valentino
Guderzo Gianfranco
Campagnolo S.r.l.
Johnson Vicky A.
Volpe and Koenig P.C.
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