B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
280/101
B62D 53/08 (2006.01) B60T 11/10 (2006.01) B62D 53/12 (2006.01)
Patent
CA 2035054
ELECTRONICALLY CONTROLLED FLUID RELEASE FIFTH WHEEL MECHANISM ABSTRACT OF THE DISCLOSURE 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.
Hungerink Gerald W.
Parr Timothy J.
Borden Ladner Gervais Llp
Holland Hitch Company
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