Flexible bags – Wall details – Pleated or gusseted
Patent
1983-07-29
1988-08-02
Marcus, Stephen
Flexible bags
Wall details
Pleated or gusseted
2065242, 383114, B65D 3020
Patent
active
047610808
ABSTRACT:
A gusseted bag is provided which, according to a preferred mode, is constructed of thermoplastic multilayer film with an outer sealing layer and has a seamless folded bottom and reverse-fin-sealed sides. Advantageously, the starting material for such bags is lay-flat tubular film cut longitudinally along the center of one side, which is folded and joined to itself along each side of the longitudinal cut, respectively. In an alternate mode wherein the bag bottom is not seamless but is end-sealed, the bag is constructed by joining together two such lay-flat tubes along each side of their longitudinal cuts, respectively.
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Gehman Bryon
Lee, Jr. William D.
Marcus Stephen
Skord Jennifer L.
Toney John J.
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