Flexible bags – With venting or ventilation means – Opening in bag material
Reexamination Certificate
2007-07-03
2007-07-03
Pascua, Jes F. (Department: 3782)
Flexible bags
With venting or ventilation means
Opening in bag material
C383S005000, C383S061200, C383S064000, C383S120000
Reexamination Certificate
active
10164670
ABSTRACT:
The reclosable bag has a gusset side structure so that the bag can be self-supporting on its bottom surface. The reclosable structure can be an internal structure or an external structure. As an external structure the front and rear walls extend above the reclosable seal and are bonded together above the reclosable seal. This extended wall structure is removed to remove these tamper evident seal. If within the bag the tamper evident seal is composed of a loop of film extending downward from each side of the reclosable seal to seal the contents of the bag. This loop must be broken to open the bag. The preferred reclosable seal is a zipper with bonded stays or each end to maintain the zipper on the bag. The bag has diagonal seals at the lower corners for forming a flat bottom to the bag and at the upper corners to provide vents for pressure equalization. The bags are made by a process where all processing is on line except for forming the zipper which is constructed off-line. The zipper is added in the machine direction and the gusset sidewalls in the cross-direction. At the end of the bag making line they are severed and printed. The bags can be immediately filled.
REFERENCES:
patent: 3378189 (1968-04-01), Dickson
patent: 4491959 (1985-01-01), Loefberg
patent: 4913561 (1990-04-01), Beer
patent: 5037138 (1991-08-01), McClintock et al.
patent: RE34347 (1993-08-01), Van Erden et al.
patent: 5364189 (1994-11-01), Kuge et al.
patent: 5669715 (1997-09-01), McManus et al.
patent: 5692837 (1997-12-01), Beer
patent: 5788378 (1998-08-01), Thomas
patent: 6030123 (2000-02-01), Mitarai
patent: 6068585 (2000-05-01), Ouchi
patent: 6132089 (2000-10-01), Galomb et al.
patent: 6186663 (2001-02-01), Ausnit
patent: 6213645 (2001-04-01), Beer
patent: 6257763 (2001-07-01), Stolmeier et al.
patent: 6261000 (2001-07-01), Bois
patent: 404006049 (1992-01-01), None
patent: 405097151 (1993-04-01), None
patent: 9-216642 (1997-08-01), None
Healy Steven Michael
Heaslip Thomas
Colgate-Palmolive Company
Park Ellen K.
Pascua Jes F.
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