Method of making plastic film bag with a multi-layered bight thr

Details Method of making plastic film bag with a multi-layered bight thr Method of making plastic film bag with a multi-layered bight thr

1991-01-29

1992-01-28

Coan, James F.

Package making

Methods

Forming a cover adjunct or application of a cover adjunct to...

531341, 493226, B65B 6114

Patent

active

050834134

ABSTRACT:
A thin plastic film bag design is provided according to which two plastic films are placed together in face-to-face relationship to form an enclosure. The film are sealed together at the lateral edge portions thereof but are open at the bottom extremity to allow stuffing contents into the defined enclosure. The sheets are so arranged at the upper extremity of the bag so as to define a supplemental enclosure which is delimited by at least two film layers. In the supplemental enclosure is entrapped the base of a hanger the hook portion of which is arranged on a throat extending through the multiple layers defining the supplemental enclosure. In one form the two layers are folded back on themselves at the upper extremity of the bag. In another form one of the films included in the associated bag is folded back on itself to form a U-shaped bight into which the other layer extends. In still another form one of the layers is folded back on itself and is then reversed to form a U-shaped bight into which the other plastic film extends. A seam is generally provided constituted by thermal welding which seals off the supplemental enclosure.

REFERENCES:
patent: 3672562 (1972-06-01), Bosse
patent: 3693867 (1977-09-01), Schwarzkopf
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patent: 3782622 (1974-01-01), Montgomery
patent: 4084689 (1978-04-01), Yamagata
patent: 4362526 (1982-12-01), Wilson
patent: 4590610 (1986-05-01), Rhyne
patent: 4704100 (1987-11-01), Kaufman
patent: 4834553 (1989-05-01), Bennett

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