Packing bag and fill-seal process

Details Packing bag and fill-seal process Packing bag and fill-seal process

1995-03-07

1996-06-25

Pascua, Jes F.

Flexible bags

With closure

Independent closures for single access opening

383 9, 383104, 383120, 383122, B65D 3334

Patent

active

055293948

ABSTRACT:
A one piece flat bottomed gusseted bag is provided which may be bottom filled and flat sealed. This structure permits a resealable bag to be filled and sealed without opening the resealable seal. The bag is formed with a revertive pocket at the bottom extending transversely from one side seam of the bag to the other and completely sealed at its ends to the side seams The pocket may be formed before or after sealing. The shape and attachment of the pocket is such as to produce a flat gusseted bottom on the bag when the bag is filled and the pocket forced outwards.

REFERENCES:
patent: 2401109 (1946-05-01), Rohdin
patent: 3228583 (1966-01-01), Dougherty
patent: 3300120 (1967-01-01), McColgan
patent: 3935993 (1976-02-01), Doyen et al.
patent: 4290467 (1981-09-01), Schmidt
patent: 4524459 (1985-06-01), Titchenal
patent: 5059036 (1991-10-01), Richison et al.
patent: 5112138 (1992-05-01), Peppiatt
patent: 5215380 (1993-06-01), Custer et al.

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