Apparatus in vehicles with compressed air brake systems for actu

Details Apparatus in vehicles with compressed air brake systems for actu Apparatus in vehicles with compressed air brake systems for actu

1977-05-06

1979-03-27

Betts, Kenneth H.

Motor vehicles

Bodies

Footboards and pedal guards

303 9, B60T 712

Patent

active

041461070

ABSTRACT:
Compressed air brakes on a vehicle are actuated by an obstacle sensor switch via electromagnetic valves to draw compressed air from both parking and service brake compressed air supplies for operation of the service brakes to avoid depletion of the service brake air supply. Also, the parking brake cylinder may be rapidly emptied from control of the obstacle sensor by means of a rapid empty valve connected to the brake cylinders of the parking brake circuit.

REFERENCES:
patent: 2588815 (1952-03-01), Fasolino
patent: 3023829 (1962-03-01), Kuttler
patent: 3059716 (1962-10-01), Iserman
patent: 3095244 (1963-06-01), Valentine
patent: 3917037 (1975-11-01), Prillinger
patent: 3954304 (1976-05-01), Engle
patent: 4003606 (1977-01-01), Plantan

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