Supports – Brackets – Shelf or scaffold type
Patent
1987-05-01
1989-05-02
Machado, Reinaldo P.
Supports
Brackets
Shelf or scaffold type
2482811, A47G 2902
Patent
active
048261238
ABSTRACT:
An adjustable keyboard support is disclosed constituted by a rear housing that pivotally supports one end of a parallel link mechanism. A front housing is carried by the other end of the parallel link mechanism, and pivotally supports a keyboard mounting plate. The parallel link mechanism permits upward and downward movement of the keyboard mounting plate without change in the tilt of that plate. A gas cylinder mechanism coupled to the front housing changes the vertical position of the same, and a slide plate adjustment mechanism provides forward and backward movement of the keyboard mounting plate.
REFERENCES:
patent: 213775 (1879-04-01), Redman et al.
patent: 2177169 (1939-10-01), Brown
patent: 2750840 (1956-06-01), Sklarek
patent: 3436046 (1969-04-01), Valesha
patent: 3652143 (1972-03-01), Wener
patent: 4616798 (1986-10-01), Smeenge et al.
patent: 4632349 (1986-12-01), Anstey
Armstrong Eric J.
Campbell Philip J.
Eldon James B.
Hannah Bruce R.
Smith Harold A.
Eley Sarah A. Lechok
Knoll International Inc.
Machado Reinaldo P.
O'Rourke Thomas A.
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