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RETICULATED MATERIAL BODY SUPPORT AND METHOD

  • US 20090165213A1
  • Filed: 12/30/2008
  • Published: 07/02/2009
  • Est. Priority Date: 06/24/2005
  • Status: Active Grant
First Claim
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1. A support cushion, comprising:

  • a top surface;

    a bottom surface opposite the top surface and separated from the top surface by a distance defining a thickness of the support cushion;

    a layer of flexible foam having a plurality of cells defining a reticulated cellular structure, the cells of the reticulated cellular structure comprising a skeletal plurality of supports through which substantially open cell walls establish fluid communication between an interior of the cell and interiors of adjacent cells, the layer of flexible foam having a density no less than about 30 kg/m3 and no greater than about 175 kg/m3, and a hardness of no less than about 20 N and no greater than about 150 N at 40% indentation force deflection measured at about 22 degrees Celsius, the layer of flexible foam comprising visco-elastic foam having at least one material property responsive to a temperature change in a range of 10-30°

    C.; and

    a layer of polyurethane foam located beneath the layer of flexible foam, the layer of polyurethane foam having a hardness of at least about 50 N;

    wherein at least one of the layer of flexible foam and the layer of polyurethane foam has a profiled surface at least partially defining a plurality of air flow paths between the layer of flexible foam and the layer of polyurethane foam.

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