Gas pressure spring with a safety device

Details Gas pressure spring with a safety device Gas pressure spring with a safety device

1983-11-10

1985-12-10

Stoner, Bruce H.

Spring devices

Vehicle

Comprising compressible fluid

138110, 138172, 18832211, 248407, 267131, 403344, B60G 1126

Patent

active

045574707

ABSTRACT:
In a gas pressure spring for a chair, a locking device is provided, which includes a safety sleeve formed of two semi-circular halves which are clamped on an outer tube of the gas pressure spring by clamping bolts. The outer tube is formed with an end portion of a reduced diameter and a transition zone. The two halves of the safety sleeve are formed each with an inner collar matching the transition zone of the outer tube. One of the halves is formed with a through opening for passing a height-adjusting lever towards the outer tube.

REFERENCES:
patent: 540558 (1895-06-01), Peregrine
patent: 1781911 (1930-11-01), Ball
patent: 1951754 (1934-03-01), Gilbert
patent: 3445130 (1969-05-01), Obenshain
patent: 3707032 (1972-12-01), Brunelle et al.
patent: 4124202 (1978-11-01), Hatakeyama
patent: 4145044 (1979-03-01), Wilson et al.
patent: 4146058 (1979-03-01), Bercovitz
patent: 4217061 (1980-08-01), Eiland et al.
patent: 4257582 (1981-03-01), Wirges
patent: 4261446 (1981-04-01), Bolger

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