Expansible chamber devices – Abutment connection between working member and power...
Patent
1996-06-04
1998-04-07
Richter, Sheldon
Expansible chamber devices
Abutment connection between working member and power...
92130R, 92240, 92245, 92249, F16J 1500
Patent
active
057351880
ABSTRACT:
An external slave cylinder particularly suited for use in a hydraulic clutch release system for a motor vehicle. The cylinder includes a cylindrical body defining a bore, a piston slidably mounted in the bore, a seal positioned between the piston and the bore, a pushrod engaging the rear end of the piston and extending out of the bore, and a preload spring. The spring comprises a conical coil spring positioned exteriorly of the bore, bearing at the reduced diameter rear end thereof against the rear end of the pushrod, and bearing at the large diameter front end thereof against the rear end of the body in surrounding relation to the pushrod. The seal has a cup-shaped configuration and fits over a nose portion provided on the front end of the piston. The seal includes a peripheral lip portion sealingly engaging the bore and a base portion closing the area within the peripheral lip portion and seated against the front end of the piston. The full cup-shaped configuration of the seal eliminates the usual internal leak path between the inner periphery of the seal and the piston.
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Branum Leslie P.
Nix Richard A.
Automotive Products (USA) Inc.
Richter Sheldon
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