Piston cap with center vent
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United States of America Patent
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Nov 10, 2015
Grant Date -
Jan 10, 2013
app pub date -
Mar 30, 2011
filing date -
Apr 2, 2010
priority date (Note) -
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Abstract
A flushometer having a cap with a substantially central exhaust passage adapted to remove air from the control chamber. The exhaust passage provides for communication between an upper pressure chamber and an interior piston chamber wherein during a flush cycle a portion of the contents of the upper pressure chamber is evacuated through the exhaust passage into the interior piston chamber and ultimately through the outlet of the flushometer.
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