Method of making plastic bag construction in serial roll form

Details Method of making plastic bag construction in serial roll form Method of making plastic bag construction in serial roll form

1979-01-24

1980-11-11

Coan, James F.

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

156221, 493233, 493238, B31B 2700

Patent

active

042325897

ABSTRACT:
A plurality of expandable bags are serially connected lengthwise in roll form. Each bag is of substantially long length and has an expandable gusset near one end thereof and traversely of the length. The gusset end of each bag is respectively connected to the filling or open end of the next bag by perforated or weakened structure. Various modifications of the position of the opening are incorporated. Also, the bags are rolled into serial form in a compact package for distribution and use with the gusset and opening portions of each bag being rolled inwardly to the inside of the roll, or outwardly to the outside of the roll. The method of making these serially connected bags in roll form is also included.

REFERENCES:
patent: 2211556 (1940-08-01), Brell et al.
patent: 2803173 (1957-08-01), Doyle
patent: 3060075 (1962-10-01), Kincaid
patent: 3254828 (1966-06-01), Lerner
patent: 3412771 (1968-11-01), Ralph
patent: 3509799 (1970-05-01), Weis et al.
patent: 3552278 (1971-01-01), Guenther
patent: 3921802 (1975-11-01), Thompson

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