Chairs and seats – Movable bottom – Interconnected with back for relative concurrent movement
297353, A47C 102
A plastic adjustable chair having a base section which has a central base column and integral legs radiating therefrom, all of molded plastic, and a seat section having a seat shell of molded plastic tiltably mounted on a plastic seat column. The seat column is pivotally mounted on the base column by a gas cylinder. A plastic backrest column is pivotally mounted on the seat shell and is adjustable with a gas cylinder. A plastic backrest shell can slide vertically on the backrest column, controlled by a flexible plastic locking lever. Upholstered plastic back and seat cushions can be snapped onto the back and seat shells or removed for reupholstery or cleaning. Plastic arms bolt onto the underside of the seat shell for easy removal, and plastic castors can be snapped into or removed from the legs.
patent: 2698629 (1955-01-01), Hall
patent: 3526430 (1970-09-01), Eldon, III
patent: 3610687 (1971-10-01), Barker
patent: 3817575 (1974-06-01), Bocksch et al.
patent: 3837705 (1974-09-01), Marraccini
patent: 3880465 (1975-04-01), Scheben
patent: 4169625 (1979-10-01), Petersen
patent: 4451084 (1984-05-01), Seeley
patent: 4466665 (1984-08-01), Aronowitz et al.
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