Chair with adjustable lumbar support

Details Chair with adjustable lumbar support Chair with adjustable lumbar support

2006-01-03

2006-01-03

Barfield, Anthony D. (Department: 3636)

Chairs and seats

Bottom or back with means to alter contour

Providing support for lower back region

C297S284400

Reexamination Certificate

active

06981743

ABSTRACT:
A chair or other seating unit comprises a seat, a backrest, and an adjustable lumbar support, the adjustable lumbar support comprising a lumbar pad and a position adjustment means. The position adjustment means comprises a vertical adjustment means for mounting the lumbar support pad to the back rest, a substantially stationary support means that receives the vertical adjustment means, and a tension adjustment means, that releases the tension between the vertical adjustment means and the substantially stationary support means to allow the lumbar support to be positioned, and that increases the tension to hold the lumbar support means in a preferred selected position. The stationary support means is fixedly secured to the backrest.

REFERENCES:
patent: 567096 (1896-09-01), Harvey et al.
patent: 1264265 (1918-04-01), Brusius
patent: 2756809 (1956-07-01), Endresen
patent: 2991124 (1961-07-01), Schwarz
patent: 3106423 (1963-10-01), Schwarz
patent: 4097087 (1978-06-01), Garavaglia
patent: 4558902 (1985-12-01), Meiller
patent: 4730871 (1988-03-01), Sheldon
patent: 6126235 (2000-10-01), Grove
patent: 6260921 (2001-07-01), Chu et al.

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