Self-balanced, multiposition holder

Details Self-balanced, multiposition holder Self-balanced, multiposition holder

1989-06-16

1991-03-19

Lazarus, Ira S.

Illumination

Supports

Counterbalanced support

362413, 362418, 362269, F21V 2120

Patent

active

050016172

ABSTRACT:
A self-balanced multiposition holder (10), particularly for a lamp (16) comprises a circular sector-like base (12) and an arm (14) attached to the base. At its end opposite to the lamp, the arm is attached to a counterweight (20), which in assembled state of the unit is hidden inside the base. The center of gravity of the entire unit is located at the center of the circle of the above-mentioned sector which forms the base, and the weight of the base, together with the counterweight is balanced by the weight of the arm with the lamp shade and lamp. Thus, when the holder is inclined at any position by rolling it on the circular bottom surface of the base, it remains at equilibrium in any position within its range of rotation.

REFERENCES:
patent: 1228615 (1917-06-01), Stafford
patent: 3247370 (1966-04-01), Lynn
patent: 3330950 (1967-07-01), Lawson et al.
patent: 3790773 (1974-02-01), Sapper
patent: 3790773 (1974-02-01), Sapper
patent: 4028543 (1977-06-01), Oster
patent: 4706172 (1987-11-01), Lebowitz

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