Spring brake actuator and method for making a spring brake actuator
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United States of America Patent
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-
Jan 17, 2017
Grant Date -
Nov 6, 2014
app pub date -
May 2, 2013
filing date -
May 2, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A brake actuator is provided, in which a diaphragm, used in conjunction with a piston which compresses a parking brake-actuating spring, is arranged such that its outer peripheral region is captured between opposing housing flange portions such that a seal between the interior and exterior of the brake actuator housing is provided in a radially-oriented region of the diaphragm and the housing flange portions away from housing portion jointing components such as a clamp ring or individual fasteners. The diaphragm may also be provided with a wedge-shaped portion at its outer periphery which is axially oriented and configured to reside in a corresponding annular gap between the opposing housing flange portions.
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