Patent ID: 7059001
Filing Date: 2006-06-13
Classification: A47C,A61G

Abstract:
1. A mattress comprising: an outer casing within which is mounted a resilient support, said support being sealed within the casing, and said casing having an air vent in a side wall of the casing, wherein: said support is a composite resilient support having a laminated core with a rectangular bottom layer and an associated rectangular top layer superimposed on said bottom layer, a top face of the bottom layer is engaged and adhesively secured to a complementary bottom face of the top layer, said bottom layer is formed of a combustion modified high resilience foam and said top layer is formed of a visco-elastic foam, said top and bottom layers are of equal depth, said laminated core is encircled by an outer frame formed of a high index foam which extends about side faces and end faces of the laminated core and is adhesively secured thereto, a sealed casing mounted about said laminated core, said casing being formed of an elastic material stretched about the laminated core with overlapping seams of the casing being secured together to form a sealed enclosure about the laminated core, an opening in said casing forms a vent to allow air passage between an interior and an exterior of the casing, a filter is mounted across the vent, and a flap is mounted on the casing covering the vent and is fixed to said casing about a periphery of the flap above and at each side of the vent leaving a downwardly facing opening between a lower end of the flap and the casing for air passage to and from the air vent.