Cushion for backrest of chair

Details Cushion for backrest of chair Cushion for backrest of chair

2006-01-03

2006-01-03

Cuomo, Peter M. (Department: 3636)

Chairs and seats

Bottom or back with means to alter contour

Providing support for lower back region

C297S284100, C297S452300, C297S285000

Reexamination Certificate

active

06981742

ABSTRACT:
A cushion includes a flexible curved main body having a first end formed with a fixed portion and a second end formed with a movable portion, and an elastic mechanism mounted on the main body and biased between the fixed portion and the movable portion of the main body. Thus, the elastic mechanism is stretched by the movable portion of the main body to mate with variation of the curvature of the main body, so that when the main body is pressed and deformed by the user's weight, the main body has a greater elastic action, and the curvature of the main body is changed automatically by the elastic force of the elastic mechanism so as to fit users of different statures and weights.

REFERENCES:
patent: 5217278 (1993-06-01), Harrison et al.
patent: 5335965 (1994-08-01), Sessini
patent: 5567011 (1996-10-01), Sessini
patent: 6030041 (2000-02-01), Hsiao
patent: 6227617 (2001-05-01), von Moller
patent: 6758522 (2004-07-01), Ligor et al.
patent: 6779844 (2004-08-01), Dosen et al.
patent: 6805405 (2004-10-01), Koo
patent: 2002/0113472 (2002-08-01), Blendea et al.

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