Chair leg base

Details Chair leg base Chair leg base

1977-02-22

1978-03-07

Frazier, Roy D.

Supports

Stand

Understructure

2481888, F16M 1120

Patent

active

040775941

ABSTRACT:
A tapered tubular chair base leg is formed from a tube of uniform cross section throughout its length by deforming the bottom wall and adjoining portions of the sidewalls of the tube inwardly to produce an interior rib which is inclined throughout its length relative to the longitudinal axis of the tube. The smaller end of the formed tube is then formed to close the end and provide a downwardly open bore for frictionally embracing a tubular caster-mounting bushing.

REFERENCES:
patent: 2913208 (1959-11-01), McKinley
patent: 3617023 (1971-11-01), Schneiderman
patent: 3674230 (1972-07-01), Propst
patent: 3682425 (1972-08-01), Vincent
patent: 3705704 (1972-12-01), Textoris

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