Method for making a hydropneumatic accumulator

Details Method for making a hydropneumatic accumulator Method for making a hydropneumatic accumulator

1993-12-01

1995-10-10

Thurlow, Jeffery R.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

29458, 138 30, 264 83, 264516, 264249, 26433119, B29C 6900, B29C 4920

Patent

active

054567874

ABSTRACT:
A method for making a hydropneumatic accumulator with a replaceable bladder for an active vehicle suspension comprising the steps chemically treating a resilient single layer bladder with a gas to provide imperviousness of a compressible gas through the bladder, bonding a spherical bumper to a closed end of the bladder, engaging an inward facing seal portion extending around an "open mouth" portion of the bladder with an external groove extending around a cylindrical cap to close off the "open mouth" portion, slideably mounting the cap and said bladder in the interior of an accumulator housing to divide the housing into a first sealed chamber for a hydraulic liquid and a second sealed chamber for a compressible gas; and engaging a detachable ring with a groove in the interior of the accumulator housing to retain the cover and the bladder in the housing.

REFERENCES:
patent: 3560166 (1971-02-01), Walles
patent: 3874052 (1975-04-01), Schantz
patent: 3947539 (1976-03-01), Lane
patent: 4875706 (1989-10-01), Joseph et al.
patent: 4885121 (1989-12-01), Patel
patent: 5030399 (1991-07-01), Walles et al.
patent: 5036110 (1991-07-01), Moureaux
patent: 5156783 (1992-10-01), Seizert et al.
patent: 5202161 (1993-04-01), Seizert et al.
"Plastics World" magazine, Feb. 1992.

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