Fluid-operated brake actuator with internal valve
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Nov 21, 2000
Grant Date -
N/A
app pub date -
Mar 28, 1996
filing date -
Apr 27, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fluid-operated brake actuator having a hollow actuator rod between a spring chamber of a spring brake housing and a spring chamber of a service brake housing incorporates a valve within the actuator rod. The valve isolates the two spring chambers from each other in normal operation and releases a vacuum in the spring brake housing spring chamber when the spring brake is activated. A separate one-way check valve mounted in a well of the spring brake housing permits fluid to exhaust from the spring chamber to atmosphere and prevents contaminants in the atmosphere from entering the spring chamber.
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Cited Art Landscape
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