Adjustable-length gas spring

Details Adjustable-length gas spring Adjustable-length gas spring

2006-06-26

2009-06-02

Williams, Thomas J (Department: 3657)

Brakes

Internal-resistance motion retarder

Valve structure or location

C188S300000, C188S319200, C267S064120

Reexamination Certificate

active

07540362

ABSTRACT:
An adjustable length gas spring comprises a casing and a piston which is disposed for displacement in the casing and joined to a piston rod. An externally operable adjusting valve is formed in the piston. Further, the piston is provided with a traction valve, which, upon application of tractive force from outside, cancels any blockage of the piston.

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