Adjustable chair pedestal

Details Adjustable chair pedestal Adjustable chair pedestal

1986-01-21

1987-04-14

Foss, J. Franklin

Supports

Stand

Standard type

2481621, F16M 1100

Patent

active

046572180

ABSTRACT:
An improved easily-adjustable chair pedestal having two principal tubular members, including a base member and a pedestal tube therein, which are axially adjustable to an infinite number of positions and are clamped together at the desired relative positions. An off-center coil spring, which is held in proper vertical alignment by support structure, biases the pedestal tube upwardly. A clamp screw passes through an orifice in the base member and through a slot in the pedestal tube and is threadedly engaged with a locking block, located inside the pedestal tube in space provided by the off-center location of the spring, to hold the principal tubular members in position.

REFERENCES:
patent: 131776 (1872-10-01), Payne
patent: 232098 (1880-09-01), Zeimet et al.
patent: 1166435 (1916-01-01), Cogger
patent: 1545115 (1925-07-01), Amsden
patent: 1610069 (1926-12-01), Weber
patent: 2260241 (1941-10-01), Bargen
patent: 3758063 (1973-09-01), Lacey
patent: 4047687 (1977-09-01), Turner

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