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Bed utilizing an air mattress

  • US 4,662,012 A
  • Filed: 12/07/1983
  • Issued: 05/05/1987
  • Est. Priority Date: 12/07/1983
  • Status: Expired due to Term
First Claim
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1. A bed comprising,a spring foundation,an air mattress supported on said spring foundation,said mattress comprising:

  • a pair of thin plastic sheets each having a plurality of transversely and longitudinally extending contiguous pockets formed therein,said pockets being in alignment and sealed on a central plane substantially entirely around their perimeters to form rows and files of cells,said cells being approximately 7" deep and about 5" in transverse dimension,the seals between adjacent cells being interrupted to form air passages between cells,said sheets being transversely sealed at three longitudinally spaced positions to divide said mattress into four zones,one central zone being about two cells wide to provide waist support,and means for inflating all of said zones to a pressure between 5 and 22 mmHg with said waist zone being inflated to a substantially greater degree than said other zones, said means maintaining the pressure within the said range whether or not a body is lying on the mattress.

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