Large sack comprising a double-walled outer sack and an inserted inner sack

Claim 1

A large sack construction, comprising an outer sack formed by an essentially tubular member having double-ply walls, the walls having inner and outer wall portions joined by first and second opposite folded edges of the member which extend longitudinally when the outer sack is in a flattened, extended condition, and the walls also having at least one set of superposed severed edge portions extending transversely between respective ends of the opposite folded edges and interconnected by at least one seam, an inner sack inserted within the outer sack, first band means extending through a loop formed by the first folded edge of the essentially tubular member with portions of the first folded edge being ruffled together and held together by the first band means to form a base for the outer sack, second band means extending through loops formed by portions of the second folded edge of the essentially tubular member, the loops of the second folded edge being formed by slots in the essentially tubular member extending inwardly from the second folded edge, and portions of the loops of the second folded edge being separately ruffled and held together by the second band means to form a mouth for the outer sack.