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US 5,217,307 AGranted
Container with an easy opening indicator or security break indicator
AssigneeMorgan Adhesives Company
InventorJack M. McClintock
Life of this patent
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AssigneeMorgan Adhesives Company
InventorJack M. McClintock
Estimating the term…
This invention provides tamper-safety labeling that can easily be applied to a container and closure means to disclose the opening of the container. This labeling is a single piece one that has a generally parallel perforated tear strip and tab formed from the face stock and that allows the tear strip and usually perforated member to be formed and laminated to a release liner having a release thereon at least commensurate with adhesive positioned in the laminate on each side of the tear strip in the face stock. Also, the tear strip may run at any angle from the horizontal plane of the container to permit the tear strip to be removed to present different arrangements of the labeling on the container and may become a product or origin identification for the container. An important aspect of the invention is that the label will normally include two separate areas of pressure sensitive adhesive, each having good adhesion characteristics to the container and closure means respectively, and normally no adhesive on the tear strip.
A container and closure means to permit said container to be opened and reclosed, having a tamper-safety indicator comprising a face stock extending over a closure line between said container and said closure means, said face stock having a tear strip with a tab formed thereon to divide said face stock into two parts when said tear strip is torn therefrom, one surface of said face stock having at least one type of adhesive applied thereto for compatible permanent adherence to the container, but not applied to the tear strip, and a second type of adhesive applied to the second portion of the face stock for compatible releasable adherence to form a releasable laminate with said face stock and the container, said tear strip being removable from the face stock to form two portions to allow the container to be opened, wherein the face stock has at least two areas uncoated with adhesive, at least three areas coated with pressure sensitive adhesive with at least one of said at least three areas being a removable pressure sensitive adhesive whereby when the tear strip is removed the container can be opened, but reclosed using the removable pressure sensitive adhesive area to reclose against the container.
Dependencies are inferred from the claim text.