Trailer air dryer with bypass valving and service indicator
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United States of America Patent
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Mar 19, 2002
Grant Date -
N/A
app pub date -
Sep 17, 1999
filing date -
Sep 17, 1999
priority date (Note) -
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Abstract
A trailer air dryer is provided to minimize contamination, leakage or freeze-up of the valves used in a pneumatic braking and suspension system caused by moisture or foreign particles in the system. A bypass assembly is provided to ensure normal brake operation should the filters or drying material/desiccant become plugged. In one embodiment, an audible signal or warning is provided to the operator indicating need for servicing the trailer air dryer.
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