Piston with an encompassing seal

Details Piston with an encompassing seal Piston with an encompassing seal

1993-09-24

1995-01-03

Denion, Thomas E.

Expansible chamber devices

Piston

Nonmetallic portion

92255, 277173, 277176, 277177, 277187, F16J 900

Patent

active

053775805

ABSTRACT:
In a piston with an encompassing seal, which is seated slidably in a cylindrical receiving bore of a structural part such as a housing block and which can be acted upon by pressure on at least one end, the piston is intended to have a shoulder for receiving the seal. This shoulder divides a cylindrical running face of the piston of a segment having a jacket face, and a groove is formed into the jacket face for receiving a ring that secures the seal in the axial direction and also acts as a stripper ring protecting the sealing ring.

REFERENCES:
patent: 2476021 (1949-07-01), Bender
patent: 2799523 (1957-07-01), Parker
patent: 2862736 (1958-12-01), Russell
patent: 4998461 (1991-03-01), Ishiwata et al.
patent: 5016524 (1991-05-01), Kawai et al.
patent: 5118119 (1992-06-01), Ditlinger
Seals and Sealing Handbook, ed. 2, GB, Morden, Trade & Technical Press Ltd., 1986.
Encycloepedia of Plastics pp. 32, 34 Dec. 1989.

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