Seat elevating device

Details Seat elevating device Seat elevating device

1994-03-10

1994-12-27

Cranmer, Laurie K.

Chairs and seats

Supplemental seat

Adjustable to plural operative positions

297283, 297313, 297DIG10, A47C 108

Patent

active

053759109

ABSTRACT:
An elevating member to be disposed upon the seat of a chair to elevate to a raised position the body of a person thereon, the elevating member comprising a pair of overlying plate members being hinged at one side thereof and having a seat supporting surface thereon, the same being hinged as at the front of a seat, said members lying over two sides of an expandable member, means retaining the side walls of said expandable member forming an airtight chamber, a low pressure air supply being connected with said chamber inflating the same and angling the upper of said plate members upwardly and forwardly elevating a person seated thereon to an erect position, this device being particularly adapted for use by persons having difficulty rising to a standing position.

REFERENCES:
patent: 3192540 (1965-07-01), Swank
patent: 3479087 (1969-11-01), Burke
patent: 4592589 (1986-06-01), Hellwig
patent: 4629162 (1986-12-01), Porche
patent: 4905329 (1990-03-01), Heilner

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