Positive shut-off power assisted brakes

Details Positive shut-off power assisted brakes Positive shut-off power assisted brakes

1988-12-15

1989-09-12

Oberleitner, Robert J.

Brakes

Operators

Automatic

60581, 60589, 188344, 188346, 303114, B60T 712, B60T 1100, B60T 844, F15B 700

Patent

active

048651648

ABSTRACT:
A mechanical arrangement to provide power assistance for the application of vehicle brakes with a positive shut-off of power assistance immediately upon release of the brake control by the user. The shut-off is achieved mechanically by providing pressure relief from the power assist pressure chamber by connecting a pressure relief channel between the power assist chamber and the brake fluid reservoir or by disconnecting the power piston in the power assist chamber from the main piston as soon as the brake control is released by the user.

REFERENCES:
patent: 3700075 (1972-10-01), Mortimer et al.
patent: 4176886 (1979-12-01), Watanabe

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