Supports – Stand – Horizontally movable support surface
Patent
1987-09-28
1989-05-16
Chin-Shue, Alvin C.
Supports
Stand
Horizontally movable support surface
248159, 2481885, 2481887, 297349, 16 2, A47C 318
Patent
active
048303240
ABSTRACT:
A post bushing for use in a chair assembly, seat post assembly, or other application where a tube is supported around a base. The post bushing includes a flexible umbrella member which secures the outer tube to the post, but which flexes and compresses such that a rigid collar on the bushing can receive the radial load.
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patent: 4282768 (1981-08-01), Osborn
patent: 4291904 (1981-09-01), Iversen et al.
patent: 4487452 (1984-12-01), Tanizaki et al.
patent: 4527483 (1985-07-01), Eichweber
Chin-Shue Alvin C.
Illinois Tool Works Inc.
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