Non-pressure plate stone shield with energy absorbing lugs, and pushrod shield for welded clevis
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United States of America Patent
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Sep 15, 2015
Grant Date -
Sep 19, 2013
app pub date -
Mar 14, 2012
filing date -
Mar 14, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A fluid pressure operable actuator includes a housing, with an end wall, and a pushrod projecting through an opening in the end wall for reciprocation upon service pressure application or release. A shield, configured as an annulus, is disposed on the pushrod to restrict contamination of an interior chamber of the actuator housing through a gap existing between an edge of the opening and a pushrod outer surface. To facilitate connecting the shield and the pushrod together, the annulus has a slit with an enlarged void at a radially outer end of the slit. This enlarged void engages an outer pushrod surface as the shield and the pushrod are joined.
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