Method and apparatus for actuating trailer brakes

Details Method and apparatus for actuating trailer brakes Method and apparatus for actuating trailer brakes

1976-11-04

1981-02-10

Kazenske, Edward R.

Brakes

Operators

Automatic

188 3H, 188345, B60T 720

Patent

active

042496438

ABSTRACT:
A trailer brake actuator and method of operation in which the actuator is interposed between a towing vehicle and a trailing vehicle and is operable upon a change in the distance between the vehicles to displace actuating fluid to the trailer brakes. The actuator is effective in both directions of relative movement between the vehicles, and in each direction of movement, the development of pressure above a predetermined minimum pressure or relative movement of the actuator parts beyond a predetermined amount will cause the pressure in the brake system to be released.

REFERENCES:
patent: 2008975 (1935-07-01), Boughton et al.
patent: 2202221 (1940-05-01), Miller
patent: 2213947 (1940-09-01), Bowen
patent: 3109521 (1963-11-01), Krotz
patent: 3220189 (1965-11-01), Caramanna
patent: 3342292 (1967-09-01), Wherry
patent: 3404757 (1968-10-01), Beach et al.
patent: 3456988 (1969-07-01), Gibbons et al.
patent: 3505815 (1970-04-01), Wherry
patent: 3682278 (1972-08-01), Wherry et al.
patent: 3923345 (1975-12-01), Poggie
patent: 3948544 (1976-04-01), Presley et al.

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