Automatic self-resetting parking brake

Details Automatic self-resetting parking brake Automatic self-resetting parking brake

1989-06-09

1990-12-18

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Multiple control

188107, 188216, 303 89, 74506, F16D 6514

Patent

active

049781782

ABSTRACT:
A parking brake having an output lever connected at a first pivot point to a brake rod, at a second pivot point to a automatic fluid responsive actuator and at a third point to one end of a chain of a standard manual releaseable parking brake unit. The other end of the chain is connected to a reset lever which is activated by the automatic actuator to reset the manual parking brake unit after manual release and during automatic release. The automatic actuator includes an air bellows to drive a piston, and a simple interlock valve connecting the air spring to a brake line.

REFERENCES:
patent: 2686575 (1954-08-01), Bunker
patent: 3344895 (1967-10-01), Holden et al.
patent: 3402678 (1968-09-01), Miller
patent: 4033629 (1977-07-01), Spalding
patent: 4236424 (1980-12-01), Kanjo et al.
patent: 4346790 (1982-08-01), Morrison et al.
patent: 4746171 (1988-05-01), Engle

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