Resealable closure
OwnerCurtis J. Walorinventor
Life of this patent
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Abstract
There is disclosed a releasable closure for a container which is particularly suitable for plastic bags. The closure is formed by a pair of opposed bands of static cling vinyl film, preferably polyvinyl chloride, which extend along the mouth of the container and which are permanently secured thereto. The bands of static cling vinyl extend inwardly, into the container where they form internal flaps that are coextensive the length of the mouth of the container, thereby forming internal flaps within the bag. These internal flaps provide the pressure resistant capability of the resealable closure, permitting it to retain its fluid-tight characteristic against internal pressures.
Claims8
A resealable container having a reclosure seal that includes at least one sealing flap formed of a flexible thermoplastic film having a sealing surface and located opposite a coacting sealing surface, the improvement comprising:
- a. a first band of a static cling vinyl plastic received within said container adjacent said sealing surface of said flap and with its outer edge permanently bonded to said sealing surface and with its inner edge being unbonded to said sealing surface, thereby forming an inner flap;
- and
- b. a second band also of a static cling vinyl plastic received within said container adjacent said coacting sealing surface and with its inner edge permanently bonded to said coacting sealing surface and with its inner edge being unbonded to said coacting sealing surface, thereby forming a second inner flap, whereby
- said first and second bands can be removably secured together to form a seal along their entire width, including said inner flaps within said container.
Dependencies are inferred from the claim text.