Sealed brake actuator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 8, 2003
Grant Date -
N/A
app pub date -
Oct 11, 2001
filing date -
Mar 15, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A sealed air-operated brake actuator comprising a brake actuator divided into a spring chamber and a pressure chamber. An extra-large force compression spring is contained in the spring chamber. The spring chamber is fluidly exhausted through a one-way valve located in the end of an actuator rod extending out of the brake actuator. The large force compression spring overcomes any vacuum or pressure that might form within the spring chamber upon the release of the parking brake and the one-way valve relieves any pressure buildup in the spring chamber upon the release of the parking brake.
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