Reversible valve assembly for a pneumatic tool
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United States of America Patent
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Sep 28, 2010
Grant Date -
Mar 20, 2008
app pub date -
Nov 13, 2006
filing date -
Sep 18, 2006
priority date (Note) -
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Abstract
A pneumatic rotary tool comprises a housing, a square drive output member supported by the housing for rotational movement, and a pneumatic motor disposed in the housing for driving rotation of the square drive. A valve is disposed in the housing for rotary movement between a first position in which pressurized air powers the motor in a forward direction and a second position in which pressurized air powers the motor in a reverse direction. An actuator supported on the housing for translational movement is connected to the valve by a lost motion connection system. The lost motion connection system comprises first and second connector elements that are engaged for generally conjoint movement in a first direction and for relative sliding movement in a second direction generally perpendicular to the first direction.
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