Flexible container with resealable opening

Details Flexible container with resealable opening Flexible container with resealable opening

1982-01-04

1985-09-17

Norton, Donald F.

Flexible bags

With closure

For access opening in sidewall

383 93, B65D 3316

Patent

active

045425302

ABSTRACT:
A flexible container for the storage of liquids which incorporates a resealable opening. A flap is temporarily sealed over the opening of the unfilled flexible container. When the container is filled this temporary seal is broken and after filling a permanent heat seal is formed by applying heat externally to the flexible container. The flap is heat sealable on the surface contacting the opening in the container wall but non-heat-sealable on its opposite surface. The temporary seal is preferably a heat activated or pressure sensitive coating which has a low cohesion with the opening of the flexible container wall.

REFERENCES:
patent: 3642047 (1972-02-01), Waage
patent: 4257535 (1981-03-01), Mellett

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