Patent ID: 7997216

Claim:
An article of furniture comprising, a support, said support comprising, in combination: a) a core body consisting of expanded polystyrene in a block shape, b) a first layer having a first top portion covering a top of said core body, and a plurality of first side portions each covering a side of said core body, wherein said first top portion consists of polyurethane foam, and said first side portions consist of polyethylene foam. c) a second layer covering the first layer and covering the top, and sides and bottom of the body, said second layer consisting of waterproof polypropylene heat-shrinkable film, d) and an exposed tension outer sheet removably covering said second layer, said outer sheet consisting of upholstery grade vinyl, and extending under lowermost corners of the second layer, e) said core body having a plurality of lower grooves, and an internal and local reinforcement member in each of said lower grooves, each of said reinforcement members having a rectangular cross-section, an upper surface, a lower surface, an inner said surface, and an outer side surface, said inner side surface being located within one of said lower grooves, said outer side surface and said lower surface intersecting to form a first corner, said first corner being covered by one of the lowermost corners of said second layer, wherein said first corner provides an internal L-shaped edge structural support to maintain said lowermost corner substantially sharp, externally, under the outer sheet, wherein each said first side portion has a bottom surface contacting the upper surface of one of said reinforcement members, f) and wherein said first layer has thickness t 1 , said second layer has thickness t 2 , and said outer sheet has thickness t 3 where t 1 >t 2 t 2 =0.003 to 0.004 inch t 3 =0.010, g) a cushioning pad contained under said second layer and said outer sheet, and extending over the entirety of said core body, h) a base adhesively adhered to the lowermost extent of said second layer under the core body, the base consisting of cross-linked polyethylene foam, i) drawstring means connecting the outer sheet in position, and tightening means protectively located under said body and above the lowermost level of the base, j) and wherein said tightening means is confined between said lowermost corners of the second layer and sides of the base, holding a lowermost extent of the outer sheet in position, k) and wherein said drawstring means is protectively tied and concealed proximate the bottom of said article, and literally spaced from the base, l) wherein a first distance between a side surface of said base and a side portion of said outer sheet is at least twice the height of the base, and m) said outer sheet is removable from open covering relation to said second layer.