Slip seal diaphragm for spring brake actuator
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United States of America Patent
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Jan 24, 2012
Grant Date -
Apr 22, 2010
app pub date -
Oct 20, 2008
filing date -
Oct 20, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A brake actuator system of a vehicle comprising a diaphragm design with a hole and sealing element in the center. The design allows for the sealing element to seal and slide on the outer diameter of the center pushrod for the exposed length. This eliminates the need for a fixed joint to permanently attach the diaphragm to the center pushrod, and allows for the pushrod to be attached to the spring piston or a separate fixed plate and reduces stress of the diaphragm at its interface.
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