Land vehicles – Wheeled – Occupant propelled type
Reexamination Certificate
2011-03-29
2011-03-29
Morris, Lesley (Department: 3611)
Land vehicles
Wheeled
Occupant propelled type
C475S189000, C475S196000, C476S036000
Reexamination Certificate
active
07914029
ABSTRACT:
Traction planets and traction rings can be operationally coupled to a planetary gearset to provide a continuously variable transmission (CVT). The CVT can be used in a bicycle. In one embodiment, the CVT is mounted on the frame of the bicycle at a location forward of the rear wheel hub of the bicycle. In one embodiment, the CVT is mounted on and supported by members of the bicycle frame such that the CVT is coaxial with the crankshaft of the bicycle. The crankshaft is configured to drive elements of the planetary gearset, which are configured to operationally drive the traction rings and the traction planets. Inventive component and subassemblies for such a CVT are disclosed. A shifting mechanism includes a plurality of pivot arms arranged to pivot about the centers of the traction planets as a shift pin hub moves axially.
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Lohr Charles B
Miller Donald C
Nichols Jon M
Pohl Brad P
Smithson Robert A
Fallbrook Technologies Inc.
Knobbe Martens Olson & Bear LLP
Morris Lesley
Williams Maurice
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