Protective cover for plaster cast

Claim 1

A generally waterproof cover for a foot cast within a predetermined size range which cover comprises an open-topped sleeve of two plies of flexible waterproof material extending from a common foldline down the rear edge thereof, and said two plies being interconnected to form said sleeve along a common bottom edge having a length x, being oriented to extend along about the centerline of said cover, and along a first section of a front edge continuous with said bottom edge and extending upwardly therefrom along about the centerline of said cover for a distance equal to at least about 0.4x to a top end thereof and being spaced apart forwardly from said rear edge, and along a second section of said front edge continuous with said first section of said front edge at said top end thereof and extending obliquely rearwardly and upwardly therefrom toward said rear edge, said plies being mutually separable along generally coextensive top edges thereof extending forwardly from said rear edge and along generally co-extensive forward edges extending from respective forward ends of said top edges to a top end of said second section of said front edge to provide flaps having generally triangular configurations defined by said top edges and said forward edges whereby said flaps can be folded outwardly about lines extending generally from an upper end of said rear edge downwardly and forwardly to said top end of said second section of said front edge, said interconnection of said plies along said bottom edges and along said first and second sections of said front edge being exterior of said cover and including a welt strip of flexible waterproof material folded over and stitched to said two plies around the exterior thereof to embrace the edges of the individual plies, and further individual welt strips of flexible waterproof material are folded over and stitched to said top edges and said forward edges of said flaps, and co-operating securement means on said flaps generally at said forward edges thereof for fastening said cover about a wearer''s lower leg, whereby the size of the largest foot cast which can be inserted into said cover is primarily determined by the minimum separation between said top end of said second section of said front edge and said rear edge, and, an abrasion-resisting wear surface panel of flexible waterproof material bonded to outer surfaces of both said two plies, said panel being substantially centered along said bottom edge to extend upwardly from either side thereof along said outer surface of said plies.