Temperature compensated safety gas spring

Details Temperature compensated safety gas spring Temperature compensated safety gas spring

1996-03-07

1998-03-03

Butler, Douglas C.

Spring devices

Fluid

Expansible-contractible chamber device

188277, 267124, 267 6411, F16F 902

Patent

active

057226431

ABSTRACT:
A gas spring includes a piston assembly or pack having an additional seal, pressure relief valve, and check valve that increases the output force of the gas spring. Various temperature compensation structures, also added to the piston pack, permits this increase to vary from zero at higher ambient temperatures to a maximum value at very cold temperatures thus achieving a temperature compensation, which varies, in an analog manner, inversely in response to the temperature changes.

REFERENCES:
patent: 4156523 (1979-05-01), Bauer
patent: 4307875 (1981-12-01), Schnitzius et al.
patent: 4408751 (1983-10-01), Dodson et al.
patent: 4438833 (1984-03-01), Schafer
patent: 5106065 (1992-04-01), Staton et al.
patent: 5404972 (1995-04-01), Popjoy et al.

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