Manufacture of bags

Details Manufacture of bags Manufacture of bags

1997-10-17

1999-04-06

Garbe, Stephen P.

Flexible bags

Wall details

Pleated or gusseted

206390, 383 8, 493196, 493244, B65D 3020

Patent

active

058908102

ABSTRACT:
An extruded plastics tube is flattened and the lateral side portions (4) are folded to form inwardly extending gussets (2). Each gusseted side portion is then folded about a longitudinal fold line (5) onto the medial portion (3) between the side portions. The resultant layers are heat sealed to form the bottom of the bag.

REFERENCES:
patent: 4759742 (1988-07-01), Achelpohl
patent: 4807754 (1989-02-01), Rowe
patent: 4846349 (1989-07-01), Galimberi
patent: 5192133 (1993-03-01), Juel et al.

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