Positive valve closure for plastic-lined bags and method for...

Flexible bags – With closure – Self-closing type

Reexamination Certificate

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Details

C383S052000

Reexamination Certificate

active

06932508

ABSTRACT:
A plastic valve bag construction is provided having structure enabling positive closure of the outer opening of the valve, once filling of the bag has been completed. Closure is provided by the placement of adhesive on one or more regions adjacent the outer opening of the valve which one or more regions of adhesive are covered by a removable shield. A method for making such plastic valve bags is also disclosed.

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