Chair seat tilt control

Details Chair seat tilt control Chair seat tilt control

1987-07-07

1988-01-12

McCall, James T.

Chairs and seats

Movable bottom

Tiltable

297300, 297303, 297304, A47C 300

Patent

active

047187263

ABSTRACT:
A seat support mechanism for a tilting chair with separate adjustments for front and rear tilt, which mechanism includes interconnected torsion bars which are adjustable to vary the resilient restraining force which opposes rearward tilt of the seat when occupied. The support mechanism also includes a separate torsion member and adjustment to vary the resilient restraining force opposing front tilt of the seat when the seat occupant leans forward.

REFERENCES:
patent: 555029 (1896-02-01), Watkins et al.
patent: 2249828 (1941-07-01), Herold
patent: 2991125 (1961-07-01), Lie
patent: 3131904 (1964-05-01), Lie
patent: 3240528 (1966-03-01), Ciuffini et al.
patent: 3480249 (1969-11-01), Lie
patent: 3592433 (1971-07-01), Fuhrman
patent: 3659819 (1972-05-01), Wolters
patent: 3669398 (1972-06-01), Robinson
patent: 3813073 (1974-05-01), Mohr et al.
patent: 3868144 (1975-02-01), Lie
patent: 4185803 (1980-01-01), Kalvatn
patent: 4295626 (1981-10-01), Large
patent: 4390206 (1983-06-01), Faiks et al.
patent: 4431157 (1984-02-01), Arild
patent: 4438898 (1984-03-01), Koblauch
patent: 4575151 (1986-03-01), Edstrom
patent: 4640548 (1987-02-01), Desanta
patent: 4695093 (1987-09-01), Suhr

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