Adjustable gas spring suspension system

Details Adjustable gas spring suspension system Adjustable gas spring suspension system

2007-03-27

2007-03-27

Butler, Douglas C. (Department: 3683)

Spring devices

Vehicle

Comprising compressible fluid

C280S276000, C280S284000

Reexamination Certificate

active

10724279

ABSTRACT:
A gas spring suspension system that adjusts the spring rate as the travel is adjusted. The suspension system includes a frame, a pressure chamber, a compression piston assembly, an adjustment assembly, a piston tube, and a shaft. The piston tube is operatively connected to the adjustment assembly and the compression piston assembly, and the compression piston assembly is configured to slidably displace along the piston tube to change the pressure in the pressure chamber. The adjustment assembly is associated with the frame and is operable to axially position the piston tube and, in turn the compression piston assembly, relative to the frame to adjust the travel of the suspension system. The shaft is configured to be variably positionable within the pressure chamber in response to axial displacement of the piston tube and the compression piston assembly by the adjustment assembly, the variable positioning of the shaft within the pressure chamber changing the pressure therein.

REFERENCES:
patent: 6095541 (2000-08-01), Turner et al.
patent: 6343807 (2002-02-01), Rathbun
patent: 6592136 (2003-07-01), Becker et al.
patent: 201 20 257 (2002-03-01), None
patent: 1 079 139 (2001-02-01), None
Fox Racing Shox 2003 Product Catalog, 2002, pp. 17 and 18, Fox Factory, Inc., United States.

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