Chairs and seats – Back movement resiliently opposed in operating position – Back adjusts independent of seat
Patent
1995-03-20
1996-11-26
Brown, Peter R.
Chairs and seats
Back movement resiliently opposed in operating position
Back adjusts independent of seat
2973022, 2973024, 2973032, 297329, A47C 1024
Patent
active
055778020
ABSTRACT:
A chair comprises a base with a fixed stem extending vertically from the base and a track member mounted to the top of the stem. The track member is a segment of a circle, the center of which is forward of the chair and coincident with either the knee or ankle of the person utilizing the chair. A carriage having wings which are concentric with the track slides in the track. A seat is mounted on the carriage. The disclosure also relates to a backrest for a chair which pivots around an axis coincident with the H point axis relative to the chair, and to a chair which can shift in response to a person sitting on the chair, the chair also comprising a backrest which pivots around the H point.
REFERENCES:
patent: 117915 (1871-08-01), Morrison
patent: 137091 (1873-03-01), Parker
patent: 160624 (1875-03-01), Spencer
patent: 465719 (1891-12-01), Mitchell
patent: 673578 (1901-05-01), Johnson
patent: 975019 (1910-11-01), Cogger
patent: 2217756 (1940-10-01), Lichter
patent: 2313023 (1943-03-01), Ruegger
patent: 2492106 (1949-12-01), Orton
patent: 2492110 (1949-11-01), Prosser et al.
patent: 2611420 (1952-09-01), Diehl
patent: 3999799 (1976-12-01), Daswick
patent: 4383714 (1983-05-01), Ishida
patent: 4547017 (1983-12-01), Lescure
patent: 4650249 (1987-03-01), Serber
patent: 4709960 (1987-12-01), Launes
patent: 4715654 (1987-12-01), Laskowitz
patent: 4738487 (1988-04-01), Shalinsky et al.
patent: 4981326 (1991-01-01), Heidman
patent: 5024484 (1991-06-01), Buchacz
patent: 5026117 (1991-06-01), Faiks et al.
patent: 5042876 (1991-08-01), Faiks
patent: 5048893 (1991-09-01), Cowan et al.
patent: 5052753 (1991-10-01), Buchacz
patent: 5121934 (1992-06-01), Decker et al.
Society of Automotive Engineers (SAE) Handbook, 1986, pp. 34.32-34.35; 34.55; 34.57.
Cowan Benjamin
Kmicikiewicz Marek
Brown Peter R.
CKE Technologies Inc.
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