Actuator assembly

Details Actuator assembly Actuator assembly

2005-02-08

2005-02-08

Lavinder, Jack (Department: 3683)

Brakes

Operators

Spring

C188S072300

Reexamination Certificate

active

06851526

ABSTRACT:
A actuator for a brake ort clutch includes a support member which has a flange projecting radially therefrom. An annular piston is slidably and sealingly mounted on the support member on one side of the flange. A pair of disk springs are mounted on the support member on the other side of the flange. A hollow brake-engaging member surrounds the flange, the piston and the disk springs. A first end of the brake-engaging member is coupled to the piston. A second end of the brake-engaging member is coupled to the disk springs and is adapted to engage a wheel brake. The flange, support member, piston and brake-engaging member enclosing a piston chamber. The disk springs are biased to urge the second end of the brake-engaging member away from the flange. Fluid pressure in the piston chamber urges the second end towards the flange.

REFERENCES:
patent: 3145816 (1964-08-01), De Lorean et al.
patent: 3773152 (1973-11-01), Sitton
patent: 4252208 (1981-02-01), Heidemeyer et al.
patent: 4657127 (1987-04-01), Boffelli
patent: 4947966 (1990-08-01), Huff
patent: 5035305 (1991-07-01), Lammers
patent: 5186284 (1993-02-01), Lamela et al.
patent: 5253737 (1993-10-01), Klaue
patent: 5873443 (1999-02-01), Meller et al.
patent: 2000-136833 (2000-05-01), None
Deere & Co., “Assembly Line Parts—Park Brake”, Aug. 2001.
Deere & Co., “Park Brake for 8000 PST”, date unknown.

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