Arrangement for a desk comprising a desk-top which can be raised

Details Arrangement for a desk comprising a desk-top which can be raised Arrangement for a desk comprising a desk-top which can be raised

1985-11-18

1987-12-08

McCall, James T.

Horizontally supported planar surfaces

Vertically adjustable

108147, 248161, 248404, A47B 900

Patent

active

047111844

ABSTRACT:
An adjustable switchboard desk has a top which can be raised and lowered by at least two telescopic legs. In each telescopic leg a hydraulic cylinder and its associated piston are arranged. The cylinder is fixed to the desk-top and the piston is fixed to an outer part of the telescopic leg, or vice versa. The inner and outer parts of the respective telescopic legs are made of closed profile with longitudinally extending, mutually co-acting guide surfaces.

REFERENCES:
patent: 2979857 (1961-04-01), Longbotham
patent: 3080835 (1963-03-01), Guglielmi
patent: 3410232 (1968-11-01), Kroeger
patent: 3999492 (1976-12-01), Emrick
patent: 4101005 (1978-07-01), Fewkes
patent: 4139175 (1979-02-01), Bauer
patent: 4183689 (1980-01-01), Wirges et al.
patent: 4302962 (1981-12-01), Williams
patent: 4374497 (1983-02-01), Harmand

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