Adjustable height counter weighted manual lift table

Details Adjustable height counter weighted manual lift table Adjustable height counter weighted manual lift table

1993-06-25

1995-10-10

Chen, Jose V.

Horizontally supported planar surfaces

Vertically adjustable

Shelf type

2481621, A47B 900

Patent

active

054561914

ABSTRACT:
The adjustable height work surface includes a support for supporting a work surface spaced from and relative to the ground, an adjustment member associated with the support and with the work surface for moving the work surface for varying the distance between the work surface and the ground, and a lock-out member for preventing operation of the adjustment member when at least a predetermined force is being exerted on the work surface.

REFERENCES:
patent: 1888478 (1932-11-01), Steidl
patent: 2672386 (1954-03-01), Segal et al.
patent: 2792944 (1957-05-01), Drommer
patent: 3855946 (1974-12-01), Bales
patent: 3915102 (1975-10-01), Barron
patent: 4292903 (1981-10-01), Hockema
patent: 4351245 (1982-09-01), Laporte
patent: 4894600 (1990-01-01), Kearney
patent: 4948205 (1990-08-01), Kelley
patent: 4969403 (1990-11-01), Schwartz et al.
patent: 4981085 (1991-01-01), Watt
patent: 5107775 (1992-04-01), Langlais et al.

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