Swivel chair

Details Swivel chair Swivel chair

1987-09-02

1989-05-30

McCall, James T.

Chairs and seats

Back movement resiliently opposed in operating position

Back adjusts independent of seat

297354, 297355, 297DIG2, A47C 300

Patent

active

048344532

ABSTRACT:
A swivel chair has a leg with a support at the upper end of its upright column and two shells which are articulately connected to each other and at least one of which is articulately connected directly to the support. The one shell carries a cushion and forms therewith the seat of the chair. The other shell is assembled of two sections which are pivotable relative to each other about a horizontal axis, one of which supports the lumbar region of the body of the occupant of the chair and the other of which serves as a shoulder support. The one section is articulately connected to the rear portion of the one shell by two hinges.

REFERENCES:
patent: 3904243 (1975-09-01), Kostelec et al.
patent: 4560199 (1985-12-01), Sapper
patent: 4585272 (1986-04-01), Ballarini
patent: 4709963 (1987-12-01), Uecker

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