Inflatable seat unit

Details Inflatable seat unit Inflatable seat unit

1978-03-22

1980-02-05

Trapp, Lawrence W.

Surgery

Truss

Perineal

A61H 100

Patent

active

041867343

ABSTRACT:
An inflatable seat unit having a plurality of air cells positioned longitudinally adjacent to each other and fully contained within a cavity in a piece of foam material, the cells being covered by a portion of the foam material to form a seat surface, the portion having a thickness which permits the rise and fall of the air cells to be felt by the occupant of the seat, a back plate for supporting the cells and causing the cells to rise in the direction of the portion of foam material, and a control mechanism for admitting air into the air cells in a controlled manner and fully contained within said piece of foam material and rigidly secured thereto, said control mechanism having a rotating valve which is forced against the valve openings by pressurized air introduced to one side of the valve during rotation.

REFERENCES:
patent: 2684672 (1954-07-01), Summerville
patent: 2819712 (1958-01-01), Morrison
patent: 2852020 (1958-09-01), Murphy
patent: 3008465 (1961-11-01), Gal
patent: 3192540 (1965-07-01), Swank
patent: 3446203 (1969-05-01), Murray
patent: 3483862 (1969-12-01), Takeuchi
patent: 3613671 (1971-10-01), Poor
H. Koch & Sons (Gulf & Western Mfg. Co.) Koch Comfort Cushion System Installation & Maintenance Manual-Jan. 1977.

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