Polywoven pinch bottom open mouth bag

Details Polywoven pinch bottom open mouth bag Polywoven pinch bottom open mouth bag

2006-06-15

2010-06-08

Pascua, Jes F (Department: 3782)

Flexible bags

With closure

Including separate closure element for straddling bag mouth

C383S089000, C383S090000, C383S117000, C383S120000, C383S123000, C383S126000

Reexamination Certificate

active

07731425

ABSTRACT:
A pinch bottom open mouth bulk material bag fabricated from polywoven material has closures at one or both ends that are non-sewn and which comprise a strip of tape running in the cross-bag direction. The tape is folded over the respective bag end, which may be modified, and is glued in place to close the end. The closure has no holes or other openings through which contaminants may enter the bag interior.

REFERENCES:
patent: 2843309 (1958-07-01), Wheeler
patent: 3441199 (1969-04-01), Brockmuller
patent: 4373979 (1983-02-01), Planeta
patent: 4498192 (1985-02-01), Becker et al.
patent: 2004/0136622 (2004-07-01), Shigeta et al.
patent: 2006/0269173 (2006-11-01), Koehn
patent: 2007/0274614 (2007-11-01), Abel
patent: 2208222 (1989-03-01), None

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