Patent ID: 6986920

Claim:
Packaging material for forming a sequence of flexible gusseted packages in which each of the packages to be formed is characterized by having front and rear faces and a pair of gusseted opposite sides extending between said front and rear faces, and having a re-closable interlocking seal effective to open and close one end of the package, comprising in combination, a) a continuous web of substantially constant thickness packaging material, said web having width and selectable running length, said width defining the side edges of said web, and b) a plurality of groups of discrete uni-planar strips of substantially constant thickness flexible material, the strips of each of said groups being disposed co-linearly transversely across said web with the strips ends being spaced endwise apart from each other, successive groups of strips being spaced lengthwise along said web at package length intervals, each of said strips having length and width, said strips width defining the strips ends, said strips lengths having top and bottom edges and being greater than said strips widths, said lengths of each of said plurality of strips being secured transversely to the running length of said web of packaging material along the strips top edges and being substantially unsecured along the bottom edges.