Motor assembly for pneumatic tool
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United States of America Patent
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Jan 8, 2013
Grant Date -
Feb 17, 2011
app pub date -
Oct 28, 2010
filing date -
May 5, 2008
priority date (Note) -
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Abstract
A pneumatic impact wrench includes a handle assembly graspable by a user, a work attachment connected to the handle assembly, an inlet permitting air flow to drive the impact wrench, an outlet permitting air flow out of the impact wrench, a motor assembly positioned between the inlet and the outlet includes a rotor driven by the air flow between the inlet and the outlet. The motor assembly defines a longitudinal motor axis about which the rotor rotates. An output drive is connected to the motor assembly to selectively rotate in response to rotation of the rotor, the output drive defines a longitudinal output axis about which the output drive rotates, the longitudinal output axis is substantially perpendicular to the longitudinal motor axis, and an impact mechanism is positioned between the motor assembly and the output drive to selectively drive the output drive in response to rotation of the rotor.
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