Patent ID: 6701557
Filing Date: 2004-03-09
Classification: A47C,Y10S

Abstract:
A single piece sculpted foam mattress layer for use as a cushioning layer in a mattress having an innerspring assembly and layers of material adjacent to the innerspring assembly wherein one of the layers is the sculpted foam layer, the innerspring assembly having a generally rectangular support surface and a rectangular perimeter about the support surface, the rectangular perimeter having opposed lateral rail edgesthe sculpted foam mattress layer having a generally rectangular shape which corresponds to a rectangular support surface of an innerspring assembly, the foam layer having parallel rail sections dimensioned to overlie the perimeter of the innerspring assembly, the rail sections having a generally smooth surface topography, and adjoining a central section of the foam layer which has a contoured surface topography, and wherein the topography of the central section is graduated proximate to edges of the rail sections and the density of the central section gradually increases proximate to the rail sections, and wherein the rail sections have a material density greater than a material density of the central section.