Beds – Support for users body or part thereof – Removable support specially adapted for seating
Patent
1993-09-27
1995-11-28
Grosz, Alexander
Beds
Support for users body or part thereof
Removable support specially adapted for seating
5450, 297DIG3, 36 43, A47C 2708
Patent
active
054695929
ABSTRACT:
A self-inflating seat cushion is shown with airtight hollow body 32 comprising flexible material and resilient structure member 30 comprising foam. Hollow, resilient structure member 30, made of flat portions of material, can lie on the inside or attach to the outside of airtight hollow body 32. During inflating, resilient structure member 30 expands moving airtight hollow body 32 into an arching configuration with high volume relative to its dimensions. A proportionate volume of air flows into the chamber. During use, the chamber flattens and deforms, airtight hollow body 32's volume diminishes, its internal pressure increases proportionately, and the seat cushions and supports weight.
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