Cylinder piston device

Details Cylinder piston device Cylinder piston device

1992-01-15

1996-01-23

Graham, Matthew C.

Spring devices

Vehicle

Comprising compressible fluid

18832217, F16F 902, F16F 934, E05F 302, E05F 1502

Patent

active

054859875

ABSTRACT:
According to an illustrative example of the invention, a gas spring is provided with an emergency exit permitting escape of pressurized gas in case of said pressurized gas exceeding a predetermined pressure. The emergency exit is provided by a radial bore through the cylinder. This radial bore is covered under normal conditions by a piston rod seal. This piston rod seal is axially displaceable by said pressurized gas at said predetermined pressure such that the radial bore is opened for escape of pressurized gas.

REFERENCES:
patent: 4342448 (1982-08-01), Wallis
patent: 4360192 (1982-11-01), Ishida
patent: 4485899 (1984-12-01), Grundel
patent: 4508020 (1985-04-01), Szcupak
patent: 4736824 (1988-04-01), Dony et al.
patent: 4958706 (1990-09-01), Richardson et al.
patent: 5064030 (1991-11-01), Wossner

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