Pack of unfolded plastic bags
AssigneeIps Industries, Inc.
InventorsRobert D. Bailey, Jack Randal Wilkerson, Tien Tjiu Tan
Life of this patent
Estimating the term…
Abstract
In an embodiment of the invention, a bottom seal of a plastic bag is strengthened by welding together 8 layers of plastic film. In one respect, an embodiment of the invention provides a bag pack that includes multiple T-shirt style plastic bags. The bag pack may be manufactured by folding a 4-layered structure into an 8-layered structure, welding a bottom edge, and then unfolding the 8-layered structure before stacking 4-layered bags into a bag pack.
Claims20
A bag pack including a plurality of plastic T-shirt style bags, each of the plurality of plastic T-shirt style bags comprising:
- a body at least partially open on a top end, the body having substantially four layers, the four layers being a front layer, a rear layer, and two gusset layers, each of the two gusset layers being disposed between the front layer and the rear layer;
- a first handle and a second handle coupled to a top end of the body, a mouth being defined on the top end between the first handle and the second handle;
- and
- a first internal rib and a second internal rib coupled to the four layers.
A bag pack, the bag pack formed by a process comprising:
- forming a plurality of gusseted side walls in a polyethylene tube to produce a gusseted portion, each of the plurality of gusseted side walls substantially meeting in a center of the polyethylene tube, the gusseted portion being a 4-layered structure;
- folding the gusseted portion along a longitudinal axis to produce a folded portion, the folded portion being an 8-layered structure;
- welding a bottom edge of the folded portion to produce a bottom weld;
- cutting the folded portion to separate a folded bag from the folded portion, the folded bag including the bottom weld, the folded bag having 8 layers;
- welding at least a portion of a top edge of the folded bag;
- at least partially unfolding the folded bag to produce an unfolded bag;
- and
- stacking the unfolded bag onto another unfolded bag to produce a pack of uncut bags.
Dependencies are inferred from the claim text.