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US 5,473,313 AGranted
Wheelchair seat cushion
OwnerWilliam F. Graebe, Jr.inventor
Life of this patent
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Abstract
A wheelchair seating system preferably for use with an inflatable cushion device such as that incorporated herein by reference includes a base suitable for containing the components necessary to provide for either manual or automatic inflation and deflation of the lower cushion incorporated in the seating system and the upper cushion upon which a user sits.
Claims20
A self-contained cushioned seat support comprising:
- a contoured base, the contoured base having a hollowed-out portion for receiving inflation means., an outwardly rounded lower surface, and upwardly extending vertical side wall portions, the wall portions including a shoulder along their uppermost edges;
- a generally rigid base lid portion, the lid portion being supported by the shoulder of the contoured base in a horizontal position;
- an inflatable air cushion, the cushion being supported by the base lid;
- the inflation means to inflate the air cushion;
- and
- deflation means to deflate the air cushion.
3 more elements
A self-contained cushioned seat support comprising:
- a contoured base, the contoured base having a hollowed-out portion for receiving inflation means, an outwardly rounded lower surface, and upwardly extending vertical side wall portions, the wall portions including a shoulder along their uppermost edges;
- a generally rigid base lid portion, the lid portion being supported by the shoulder of the contoured base in a horizontal position;
- an inflatable air cushion including a pocket on its upper surface, the cushion being supported from underneath by the base lid;
- inflation means to inflate the air cushion;
- deflation means to deflate the air cushion;
- and alarm means to alert the user to changes in inflation of the inflatable cushion and changes in user position.
3 more elements
Dependencies are inferred from the claim text.