Piston-cylinder assembly of plastic material as well as process

Details Piston-cylinder assembly of plastic material as well as process Piston-cylinder assembly of plastic material as well as process

1992-03-30

1993-10-19

Look, Edward K.

Expansible chamber devices

Cylinder detail

Nonmetallic piston contacting portion

92248, 264318, 425DIG58, F01B 1102, F16J 1000, B28B 720

Patent

active

052535770

ABSTRACT:
A clutch master assembly made of plastic material for an automotive vehicle. The assembly a plastic cylinder housing (1) and a piston (2) and a plastic bushing (3). The plastic bushing is arranged to allow it to be screwed in by means of a thread portion (4) which is located in the housing. By the screwing-in of the bushing a grooved disc (5) and a grooved cup (6) are secured in the assembly. The grooved cup is furnished with knobs (21, 22, 23) which exert a force in axial direction on the arrangement consisting of the grooved cup (6) and the grooved disc (5). The piston-side enlarged end of the piston rod (31, 104) is secured within the piston (2, 103) by a back injection.

REFERENCES:
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patent: 4671065 (1987-06-01), Ishiwata
patent: 4823553 (1989-04-01), Reynolds
patent: 4898082 (1990-02-01), Pottorff
patent: 4941323 (1990-07-01), Leigh-Monstevens
patent: 4958676 (1990-09-01), Kuntz
patent: 5135700 (1992-08-01), Williams et al.

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