Spring devices – Vehicle – Comprising compressible fluid
Patent
1997-07-01
1999-12-21
Young, Lee W.
Spring devices
Vehicle
Comprising compressible fluid
267 6412, 18832216, 277558, F16F 500
Patent
active
060038489
ABSTRACT:
A gas spring with a sealing and bearing assembly received within a casing of the gas spring adjacent to a rod slidably received through the assembly for axial reciprocation. The assembly has an annular retaining ring received within the casing, an annular bearing with a throughbore through which the rod reciprocates carried by the retaining ring, an annular retainer carried by the retaining ring downstream of the bearing, and a sealing member received within the retaining ring adjacent to the retainer and in firm engagement with the rod and retaining ring to provide a gas-tight seal between the rod and the retaining ring to prevent the escape of gas from the gas spring. The retainer preferably has a dovetail flange extending therefrom and the sealing ring has a complementarily shaped recess molded or press-fit onto the flange to attach the sealing ring to the retainer. The retainer is preferably firmly clamped to the retaining ring by rolling its upper edge over the retainer. To prevent contaminants from entering the gas spring and fouling the bearing and sealing assembly, a wiper is provided downstream of the sealing member and attached to the retainer.
REFERENCES:
patent: 4792128 (1988-12-01), Holley
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patent: 4987826 (1991-01-01), Deppert et al.
patent: 5011121 (1991-04-01), Oriola et al.
patent: 5129635 (1992-07-01), Holley
patent: 5275387 (1994-01-01), Cotter et al.
patent: 5303906 (1994-04-01), Cotter et al.
patent: 5344125 (1994-09-01), Cotter
Cotter Jonathan P.
Cotter Patrick J.
Diebolt International, Inc.
Lipka Pamela J.
Young Lee W.
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