Rotary vane air motor with improved vanes and other improvements
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United States of America Patent
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Dec 23, 2014
Issued Date -
N/A
app pub date -
Feb 8, 2013
filing date -
Feb 8, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A rotary vane air motor comprises a rotor, stator and vanes. The rotor has slots for the vanes, and the vanes may move between a retracted position and a contact position in which the vanes contact the cylinder. Each vane may have a longitudinal portion whose shape conforms generally to the slot, and a transverse portion that is radially outside of the slot and extends at least in part in a direction that is transverse to the longitudinal portion and that may be tangential to the perimeter of the rotor at the slot. The shape of the perimeter may be a polygon with rounded corners. The vanes may also include a magnetic portion or a rotating portion.
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