Vehicle-trailer braking system

Details Vehicle-trailer braking system Vehicle-trailer braking system

1975-09-30

1977-03-08

Blix, Trygve M.

Fluid-pressure and analogous brake systems

With pump

74512, 188 3R, 303 50, B60T 1314

Patent

active

040109828

ABSTRACT:
Braking systems for tractor and trailer combinations.
A valve is mounted on the brake pedal of a vehicle and a second pedal pivotally connected to the brake pedal. The second pedal is connected to the spool of the valve by a spring. Depression of the second pedal allows fluid through the valve to the trailer brakes. Pressure in the trailer brakes acts between the spool and the body to bias the spool to compress the spring. This force is reacted by the brake pedal and thus the brake pedal is actuated by a force proportional to the force in the trailer brakes.

REFERENCES:
patent: 2513486 (1950-07-01), Herman
patent: 3441108 (1969-04-01), Boueil et al.
patent: 3606495 (1971-09-01), Bion
patent: 3661429 (1972-05-01), Kito
patent: 3740102 (1973-06-01), Schwerin
patent: 3788709 (1974-01-01), Schwerin

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