Beds – Bedclothing – And means to facilitate changing thereof
Patent
1985-11-25
1987-10-13
Smith, Gary L.
Beds
Bedclothing
And means to facilitate changing thereof
5455, 5464, 297DIG3, A47C 2002, A47C 2710
Patent
active
046988645
ABSTRACT:
A cushion has a base and a plurality of flexible hollow cells attached to the base and projected outwardly from it. The cells may be arranged in zones, with the interiors of the cells for each zone being in communication, yet isolated from the interiors of the cells for the other zones. The cells are inflated slightly to support a load applied to the cushion, and when the cushion is so loaded, the cells of each zone are at the same pressure, so that the supporting force exerted by each cell of a particular zone against the load is essentially the same. The cells may be of varying length to contour the surface formed by the ends of the cells, giving that surface, for example, a wedge-shaped configuration or a cradle-like configuration. Some of the cells may be separated more than others to provide the cushion with a cavity where no support is provided, and the cavity may extend through the base.
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Smith Gary L.
Trettel Michael F.
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