Gas spring

Details Gas spring Gas spring

1992-04-09

1994-01-04

Oberleitner, Robert J.

Spring devices

Vehicle

Comprising compressible fluid

18832217, 277152, F16F 934, F16F 500

Patent

active

052753875

ABSTRACT:
A gas spring with a piston reciprocable in a chamber of a casing, a sealing assembly at the rear end of the casing through which the piston rod extends, and an end cap closing the rear end of the casing. The sealing assembly has a reinforcing ring having a sealing ring on one side and a wiper on the other side. The sealing ring and wiper are portions of a single body of elastomeric material molded to the reinforcing ring and integrally connected through one or more openings in the reinforcing ring. The casing wall is rolled radially inwardly over the sealing assembly into pressure contact with the reinforcing ring so that the sealing assembly becomes in effect an end cap for the front end of the casing. The rear end of the casing is rolled over the rear end cap by swaging into pressure contact with the end cap. A filler valve is disposed in the end cap.

REFERENCES:
patent: 2385045 (1943-08-01), Wallace
patent: 3104916 (1963-09-01), Dowling et al.
patent: 3361422 (1968-01-01), Theuleau
patent: 3857405 (1974-12-01), Heideman
patent: 4045008 (1977-08-01), Bauer
patent: 4093196 (1978-06-01), Bauer
patent: 4257580 (1981-03-01), Schnitzius
patent: 4736824 (1988-04-01), Dony et al.
patent: 4792128 (1988-12-01), Holley
patent: 4813655 (1989-03-01), Hennells
patent: 4838527 (1989-06-01), Holley
patent: 4987826 (1991-01-01), Deppert et al.
patent: 5011121 (1991-04-01), Oriola et al.

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