Lockable pneumatic spring

Details Lockable pneumatic spring Lockable pneumatic spring

1989-04-26

1989-10-03

Falk, Joseph

Spring devices

Vehicle

Comprising compressible fluid

F16F 500

Patent

active

048711497

ABSTRACT:
A lockable pneumatic spring comprising a piston which slides in a cylinder filled with pressurized gas and which divides the cylinder into two different chambers which mutually communicate with each other through the intermediary of a slide valve. The slide valve includes a cylindrical first part which sealingly contacts a first annular seal element to form a lock seal between the chambers and a depressible cylindrical second part of constant diameter projecting outside the cylinder. The diameter of the first part is larger than the diameter of the second part and the two parts are connected by an intermediate part which tapers from the end of the first part to the end of the second part.

REFERENCES:
patent: 2336924 (1943-12-01), Cordis
patent: 3024067 (1962-03-01), Brandoli
patent: 3656593 (1972-04-01), Bauer
patent: 3739885 (1973-06-01), Bainbridge
patent: 3913901 (1975-10-01), Molders
patent: 4093196 (1978-06-01), Bauer
patent: 4257582 (1975-12-01), Wirges
patent: 4445671 (1978-05-01), Reuschenbach et al.

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