Electronically controlled fluid release fifth wheel safety mecha

Details Electronically controlled fluid release fifth wheel safety mecha Electronically controlled fluid release fifth wheel safety mecha

1990-07-31

1991-12-03

Marmor, Charles A.

Land vehicles

Wheeled

Articulated vehicle

280432, B62D 5306, B60T 712

Patent

active

050694723

ABSTRACT:
A controlled fluid release fifth wheel apparatus having a first control in the tractor cab and a second control outside the cab, in series with each other, and functionally located in series between a power source and a power actuator at the fifth wheel hitch. Both the inside and outside controls must be properly actuated in series for the power actuator to operate to release the hitch. A timer is actuated by the first control to set a short time period during which the second control can be actuated. A trailer brake line air pressure sensor in series with the first and second controls prevents operation of the actuator until the trailer brake line is unpressurized such that the brakes on the trailer are locked.

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"Remote Control of Fifth Wheel Coupling", by Dieter Raab, (1990 issue of Truck Technology International Ninety).

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