Bicycle transmission
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United States of America Patent
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Jun 27, 2017
Issued Date -
N/A
app pub date -
Jun 6, 2014
filing date -
Jun 6, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A chainless drive mechanism for a bicycle using pedal arms, one on each side of the bicycle, each pedal arm carrying a pedal engageable with a rider's foot. Each pedal arm is mounted to a crank by a rotating joint and connected to the frame of the bicycle by a link, each link having rotating joints at each end. The cranks are connected by a shaft passing through the hub of to the driven wheel of the bicycle. The cranks may be connected to the driven wheel by a multi ratio free wheeling gear mechanism.
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