Fluid-pressure and analogous brake systems – Releasing – Motor
Patent
1985-09-06
1987-04-14
Reger, Duane A.
Fluid-pressure and analogous brake systems
Releasing
Motor
303 6M, B60T 1300
Patent
active
046573119
ABSTRACT:
A fluid pressure control system engages the power take-off of a tractor-trailer combination vehicle equipped with air brakes while simultaneously applying the parking brakes of both the tractor and the trailer. However, when the vehicle is to be moved and the power take-off disengaged, the vehicle operator must, in addition to moving the power take-off control to the position disengaging the power take-off, must also operate the parking control valves which release the parking brakes on both the tractor and the trailer. Accordingly, the parking brakes cannot be inadvertently released by merely disengaging the power take-off control, although engagement of the power take-off control automatically sets or applies the parking brakes on both the tractor and the trailer.
REFERENCES:
patent: 4058345 (1977-11-01), Klimek
patent: 4163584 (1979-08-01), Koenig
Allied Corporation
Antonis William N.
Decker Ken C.
Graham M. C.
Reger Duane A.
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