Incrementally variable bicycle transmission
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United States of America Patent
Stats
-
Feb 24, 1987
Issued Date -
N/A
app pub date -
Aug 21, 1984
filing date -
Oct 13, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An incrementally variable transmission, particularly suitable for a bicycle, having a variable-sprocket which comprises: A drive-flange and an indexing-flange mounted on an axle with a pair of sprocket-segment-planets and at least a pair of idler-planets sandwiched between the flanges, the planets adapted to expand and contract in response to a relative rotation of the flanges and thereby increase and decrease, respectively, the effective diameter of the variable-sprocket.
First Claim
Family
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Cited Art Landscape
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