Brake safety system for vehicles with seat and door control

Details Brake safety system for vehicles with seat and door control Brake safety system for vehicles with seat and door control

1995-09-29

1996-07-09

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

180273, 180280, B60T 714

Patent

active

055337953

ABSTRACT:
The parking brake of a vehicle is automatically operated whenever the driver or operator leaves the operator's seat and/or opens the door to the vehicle. A seat switch and a separate door switch are electrically wired to an electrical solenoid which operates a valve that controls the supply of air from an air tank through a manual air valve to the brakes. The seat and door switches are connected in parallel to the ignition switch wired to the battery which is grounded to a common ground with the solenoid, whereby either the seat switch or the door switch be closed to release the brakes.

REFERENCES:
patent: 3601453 (1971-08-01), Silverman
patent: 3790223 (1974-02-01), Fontaine
patent: 3893697 (1975-07-01), Blitz et al.
patent: 3905651 (1975-09-01), Hornung
patent: 4546845 (1985-10-01), Meyer et al.

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