Gussetted flexible package with presealed portions and method of

Details Gussetted flexible package with presealed portions and method of Gussetted flexible package with presealed portions and method of

1988-11-15

1990-04-03

Marcus, Stephen

Flexible bags

With closure

Closure within bag

383120, 383121, 53479, B65D 3300

Patent

active

049135619

ABSTRACT:
A gussetted flexible tubular package having a longitudinal axis and formed from flexible sheet material, e.g., plastic film. The package comprising a front and rear panel connected by respective side gusset folds. Each of the gusset folds comprises a central fold edge interposed between a pair of outer fold edges and defining therebetween respective gusset sections subadjacent the panels. The upper end of the package has an open mouth defined by upper end portions of the panels located between a pair of side seals. Each of the side seals comprises a longitudinally disposed seal and an angularly diverging seal. The longitudinally located seals each include one portion which seals the panels together contiguous with their respective central fold edges and another portion which seals the panels to their respective subadjacent gusset sections contiguous with the respective central fold edges. Each of the diverging seals seals the panels to their respective subadjacent gusset sections at portions thereof which are located between their respective outer fold edges and their associated longitudinally located seals. The mouth of the package is readily sealable by bringing the upper end portions of the panels between the side seals into contact with each other and applying heat and pressure to those panel portions.

REFERENCES:
patent: 4705174 (1987-11-01), Goglio

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