Flexible bags – With closure – Rib and groove
Patent
1987-02-19
1988-08-16
Garbe, Stephen P.
Flexible bags
With closure
Rib and groove
A65D 3325
Patent
active
047649771
ABSTRACT:
Methods for forming rib and groove plastic fastener elements and for securing them to a film web are provided. The rib element, as extruded, has an arrowhead-shaped tip, a concave tail, and a generally upstanding stem portion connecting the tip and tail. The groove element is formed having a base with a pair of generally upstanding neck elements disposed on opposite ends of the base. The base does not extend beyond the neck elements. The rib and groove elements are readily secured to the film web without entrapment of air between the elements and film web. Reclosable plastic containers may be formed utilizing the disclosed rib and groove elements.
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Garbe Stephen P.
Hessenaur, Jr. L. E.
The Dow Chemical Company
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