Mechanism for preventing the shaking of a drum chair

Details Mechanism for preventing the shaking of a drum chair Mechanism for preventing the shaking of a drum chair

1997-01-06

1998-12-01

Cuomo, Peter M.

Chairs and seats

Movable bottom

Movable independently of back

248405, 2481884, 29734418, 297461, A47C 340

Patent

active

058427422

ABSTRACT:
A chair including a mechanism for preventing shaking of the chair due to vibration of a drum performance, or the like. The chair seat is attached to an upper support post by a holder that clamps around the upper support post. The holder includes two opposite holder parts which are drawn together by tightening screws. The upper support post is received in the interior of a lower support tube. A shaking prevention compression bush is disposed on the lower part of the upper support inside the interior of the lower support and presses against the interior wall of the lower support preventing shaking of the upper and lower supports.

REFERENCES:
patent: 2254973 (1941-09-01), Nalle
patent: 3183861 (1965-05-01), Halstrick
patent: 4828212 (1989-05-01), Dicks
patent: 4856929 (1989-08-01), Smahlik et al.
patent: 4872635 (1989-10-01), Knoblock et al.
patent: 5040758 (1991-08-01), Giovannetti

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