Safety bumper and air brake actuator

Details Safety bumper and air brake actuator Safety bumper and air brake actuator

1985-03-29

1987-02-10

Reeves, Robert B.

Vehicle fenders

Buffer or bumper type

Shiftable between operative and inoperative positions other...

293 5, 180275, B60R 1900

Patent

active

046418717

ABSTRACT:
A retractable safety bumper and air brake actuator is provided in which a bumper is carried at the rear of a trailer such that as the bumper is engaged by an obstruction at the rear of the trailer, the bumper drives a piston to which it is attached into a sleeve, activating a switch and solenoid which release air from the trailer emergency air tank, through the trailer triple valve and into the brake pots of the trailer, thereby immediately locking the trailer brakes without affecting the tractor brakes.

REFERENCES:
patent: 3847427 (1974-11-01), Eshelman
patent: 3945672 (1976-03-01), Wong
patent: 3947061 (1976-03-01), Ellis
patent: 4105237 (1978-08-01), Viall, Sr. et al.
patent: 4146107 (1979-03-01), Ebbeson et al.
patent: 4207958 (1980-06-01), Viall, Sr. et al.
patent: 4247138 (1981-01-01), Child
patent: 4398764 (1983-08-01), Okuyama

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