Bonded piston and seal assembly

Details Bonded piston and seal assembly Bonded piston and seal assembly

1994-12-14

1996-02-20

Denion, Thomas E.

Expansible chamber devices

Piston

Side wall portion includes peripheral axially extending...

92240, 92107, F16J 900

Patent

active

054920531

ABSTRACT:
A piston and seal assembly that has a rigid core with an elastomeric seal bonded thereto. The core has an annular outer cylindrical edge, a forwardly facing surface and a rearwardly facing surface. The elastomeric member is bonded to the core so as to encase the annular cylindrical edge. The elastomeric member extends outboard of the rearwardly facing surface of the core to provide a sealing lip. An annular concave surface merges with an annular convex surface located axially rearwardly of the rearward facing surface on the core. A radially outwardly directed surface on the lip portion merges tangentially with the convex surface.

REFERENCES:
patent: 2181900 (1939-12-01), Langdon
patent: 2489715 (1949-11-01), Marks, Jr. et al.
patent: 3037781 (1962-06-01), Peras
patent: 3055720 (1962-09-01), Price
patent: 3295419 (1967-01-01), Vielmo et al.
patent: 4417503 (1983-11-01), Izumi
patent: 4635778 (1987-01-01), Lederman

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