Adjustable lamps

Details Adjustable lamps Adjustable lamps

1979-07-12

1982-02-02

Nelson, Peter A.

Illumination

Light source and modifier

Adjustable or repositionable light source or light source...

362 33, 362371, 362389, 362427, F21V 2118

Patent

active

043143199

ABSTRACT:
An adjustable lamp is provided (FIG. 1) comprising a main arm 12 which is pivoted to a base at one end and carries the lamp housing at the other end. The angular position of the arm relative to the base is controlled by a link also pivoted to the base and to a sliding connection on the arm. There is adjustable frictional resistance to sliding, and additionally the link is spring urged to counterbalance the increasing turning moment as the arm moves towards the horizontal position.

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patent: 3820752 (1974-06-01), Oram
patent: 4139883 (1979-02-01), Ilzig et al.
patent: 4165530 (1979-08-01), Sowden
patent: 4190880 (1980-02-01), Esaki
patent: 4213172 (1980-07-01), Scattolin et al.

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