Fluid-operated piston

Details Fluid-operated piston Fluid-operated piston

1985-12-13

1987-01-13

Friedman, Carl D.

192 clutches and power-stop control

Clutches

Operators

192 18A, 92183, A16D 1900

Patent

active

046357785

ABSTRACT:
A fluid-operated friction engaged torque transmitting device, such as a clutch or brake, has a piston member. The piston has a rigid material, such as metal or plastic body member which is encased in an elastomeric cover. The elastomeric cover is a molded structure which is bonded to the rigid body. The elastomeric cover has integrally formed therewith, during molding, a pair of annular lip seals, a valve structure and a spring portion. A reaction plate or ring is molded or bonded to the spring portion.

REFERENCES:
patent: 3605409 (1971-09-01), Heese et al.
patent: 3814226 (1974-06-01), White
patent: 4450943 (1984-05-01), Long, Jr.
patent: 4529073 (1985-07-01), Lewis
patent: 4574926 (1986-03-01), Bubak

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