Electro-pneumatic control for a vehicle fluid pressure braking s

Details Electro-pneumatic control for a vehicle fluid pressure braking s Electro-pneumatic control for a vehicle fluid pressure braking s

1983-12-16

1985-11-05

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Multiple control

Fluid and electric

303 71, B60T 1322

Patent

active

045509530

ABSTRACT:
An electro-pneumatic control system (10) for a vehicle fluid pressure braking system controls communication to the trailer supply line (30) and to the vehicle spring applied, fluid pressure released parking brakes (78). Relays (66,92) are controlled by manually actuated switches (42,58) to actuate solenoid valves (74,84) which control communication to the supply line (30) and to the parking brakes (78). Actuation of the solenoid valves (74,84) is maintained by the relays (66,92) in response to pressure actuated switches (76,88) which are responsive to the pressure levels in the supply line (30) and in the parking brake (78).

REFERENCES:
patent: 3482885 (1969-12-01), Campanini
patent: 3482886 (1969-12-01), Dobrikin
patent: 3497268 (1970-02-01), Dobrikin
patent: 3507543 (1970-04-01), Cannella
patent: 3819238 (1974-06-01), Cermak
patent: 3985210 (1976-10-01), Hodge et al.
patent: 4049324 (1977-09-01), Cermak
patent: 4339154 (1982-07-01), Duttarer

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