Vehicle air brake test system
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United States of America Patent
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Nov 16, 2004
Grant Date -
N/A
app pub date -
Jul 14, 2003
filing date -
Jul 14, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A test system is provided for primary and secondary brakes in a vehicle. The test system includes a two-position combination first valve having a first inlet coupled to a primary air supply, a second inlet coupled to a test air supply, and an outlet coupled to the primary brakes. The test system also includes a two-position combination second valve having a first inlet coupled to a secondary air supply, a second inlet coupled to the test air supply, and an outlet coupled to the secondary brakes. A system selector switch is provided for selectively applying current to one or both of the first and second valves responsive to a test signal input wherein each of the first and second valves directs fluid flow from one of the first and second inlets to the outlet.
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