Articulated stand for supporting object

Details Articulated stand for supporting object Articulated stand for supporting object

1991-08-30

1992-10-13

Foss, J. Franklin

Supports

Easel; book, copy or music score holder

Mounted on wall or art device

248284, 248291, A47B 9704

Patent

active

051543907

ABSTRACT:
An activated arm stand with a base positioned on or securable to a stationary surface in which the base and an arm with a selected width are connected by a pair of aligned cylindrical portions each having a width less than the width of the arm. The cylindrical potions have V-shaped teeth which are urged together by an adjustable fastener and spring to hold the arm in a selected position. The base includes a surface which engages the arm to prevent its movement into a portion of the 360.degree. rotation even when the teeth are disengaged. The arm stand may include a toothless joint engagement arrangement in which a tooth joint portion is made toothless with a conversion washer.

REFERENCES:
patent: 2621882 (1952-12-01), Fletcher
patent: 3193674 (1965-07-01), Fleming
patent: 3243497 (1966-03-01), Kendall
patent: 3317225 (1967-05-01), Cooper
patent: 3505515 (1970-04-01), Adra
patent: 4196821 (1980-04-01), Teti
patent: 4568052 (1986-02-01), Solomon
patent: 4917343 (1990-04-01), Wainscott
patent: 4949928 (1990-08-01), Hoshino
patent: 4987690 (1991-01-01), Aaldenberg

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