Patent ID: 8921242

Claim:
A swimming pool cover in combination with a swimming pool, consisting essentially of: a) a fabric cover enclosing the swimming pool thereunder; said fabric cover consisting of: i) a top layer of solid plastic polypropylene material as the only polymer present in said top layer, where a copolymer of polypropylene is absent from said top layer; ii) an intermediate layer of multi-filament mesh consisting of only polypropylene threads where a copolymer of polypropylene is absent from said intermediate layer of multi-filament mesh; said intermediate layer of mesh being coated with said top layer of solid plastic polypropylene material which penetrates said mesh and seals openings in said mesh; and iii) a bottom layer of solid plastic polypropylene material as the only polymer present in said bottom layer, wherein said bottom layer is attached to said intermediate layer of mesh; where a copolymer of polypropylene is absent from said bottom layer of solid plastic polypropylene material; said intermediate layer of mesh being coated with said bottom layer of solid plastic polypropylene material which penetrates said mesh and seals openings in said mesh; wherein said top layer and said bottom layer are bonded together and become indistinguishable; and b) reinforcing said swimming pool cover with attachment straps in a cross-crossed pattern on an outer surface of said top layer.