Flexible bags – With closure – Independent closures for single access opening
Reexamination Certificate
2005-09-06
2005-09-06
Pascua, Jes F. (Department: 3727)
Flexible bags
With closure
Independent closures for single access opening
C383S064000, C383S204000, C053S412000
Reexamination Certificate
active
06939040
ABSTRACT:
A reclosable package comprises a receptacle and a header that communicate via a mouth, and a slider-zipper assembly disposed in the mouth, the slider being exposed when a first portion of the header is removed. The header further comprises second and third portions having respective states of tension that will cause the second and third portions of the header to curl or bend away from the slider when the first portion of the header is removed, for example, by tearing or cutting. The second and third portions of the header curl or bend in opposite directions to allow easy access to the slider by the consumer. In a method of manufacture, the second and third portions of the header are heat treated to produce differential shrink tension states. Alternatively, the header material can be a thermoplastic laminate film in which the layers have different shrink tension states.
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Illinois Tool Works Inc.
Ostrager Chong & Flaherty & Broitman P.C.
Pascua Jes F.
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