Longitudinally adjustable gas spring

Details Longitudinally adjustable gas spring Longitudinally adjustable gas spring

1991-03-21

1992-08-25

Halvosa, George E. A.

Spring devices

Vehicle

Comprising compressible fluid

13762512, 1376254, 188300, 18832221, 248161, 248631, 297355, 267 6428, F16F 934, F16F 943

Patent

active

051412101

ABSTRACT:
A longitudinally adjustable gas spring has a valve having a valve pin arranged to be moved within a valve body. On both sides of the inner chamber of the valve body annular seals are arranged and bear against the cylindrical sections of different diameters. To bridge at least one annular seal grooves are formed in an associated cylindrical section. When the corresponding annular seal is bridged by a displacement of the valve pin, the respective annular seal remains in its position bearing against the cylindrical external surface of the corresponding cylindrical section, so that the wear of the seals implying the gas spring to become unserviceable is eliminated.

REFERENCES:
patent: 2764181 (1956-10-01), Richolt
patent: 2922497 (1960-01-01), Porter
patent: 2992817 (1961-07-01), Templeton
patent: 3913901 (1975-10-01), Molders
patent: 4044866 (1977-08-01), Ishida

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