Parking and emergency brake actuator for a drum-in-hat disc...

Details Parking and emergency brake actuator for a drum-in-hat disc... Parking and emergency brake actuator for a drum-in-hat disc...

2007-12-20

2009-02-17

Schwartz, Christopher P (Department: 3683)

Brakes

Wheel

Axially and transversely movable

C188S10600P

Reexamination Certificate

active

07490702

ABSTRACT:
A drum-in-hat disc brake assembly has a disc service brake and a drum-in-hat parking and emergency brake, and includes a backing plate, a pair of parking and emergency brake shoes secured to the backing plate, and a parking and emergency brake actuator. The parking and emergency brake actuator includes a first body portion and a second body portion pivotally mounted to the first body portion. A boss extends between the first body portion and the second body portion. The boss is selectively movable between a plurality of positions and defines a first distance between the first body portion and the second body portion. A lever arm is pivotally mounted to the second body portion and is connected to a parking and emergency brake cable.

REFERENCES:
patent: 3823799 (1974-07-01), Margetts
patent: 4702354 (1987-10-01), Ingram et al.
patent: 4732243 (1988-03-01), Ingram et al.
patent: 5322145 (1994-06-01), Evans
patent: 6435317 (2002-08-01), Tanaka et al.
patent: 6729444 (2004-05-01), Schmandt et al.
patent: 2006/0144658 (2006-07-01), Tessitore et al.

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