BICYCLE CRANK SHAFT ASSEMBLY
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United States of America Patent
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N/A
Issued Date -
Sep 23, 2010
app pub date -
Mar 17, 2010
filing date -
Mar 19, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A bicycle crank shaft assembly includes first, second and third members. The first member defines first (crank axle), second (first segment of first crank arm) and third (first segment of second crank arm) portions, the first, second and third portions of the first member being integral and continuous with each other and having a generally s-shaped configuration. The second member defines a second segment of the first crank arm, and the third member defines a second segment of the second crank arm. The first and second segments of the first crank arm are bonded to each other with a bond seam therebetween to define the first crank arm, and the first and second segments of the second crank arm are bonded to each other with a bond seam therebetween to define the second crank arm. At least one of the crank axle, the first crank arm and the second crank arm is hollow.
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