CRANK SPINDLE ASSEMBLY AND METHOD OF FABRICATION
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United States of America Patent
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-
N/A
Issued Date -
Aug 1, 2013
app pub date -
Mar 12, 2013
filing date -
Mar 16, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A crank assembly for a bicycle is provided. The crank assembly includes an integrally formed unitary body. The body includes an arm first portion and an arm second portion extending on an angle from one end of the arm first portion. An enclosed cavity is disposed between the arm first portion and the arm second portion. The cavity has a first width at a first end in the arm first portion and a second width at an end of the arm second portion, the cavity and the arm first portion defining a first wall thickness in a first direction, the cavity and the arm second portion defining a second wall thickness in a second direction. The first wall thickness and the second wall thickness are substantially equal. A boss portion extends from an end of the arm second portion opposite the first arm portion.
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