Manufacturing container or tube from paper; or other manufacturi – Container making – Rigid container
Patent
1991-05-15
1993-04-13
Terrell, William E.
Manufacturing container or tube from paper; or other manufacturi
Container making
Rigid container
493102, 493116, 493963, B31B 190, B65D 574
Patent
active
052016986
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates generally to the handling of paper or cardboard packages, and more particularly to the useful art of opening paper or cardboard packages for use with drinkable liquid products or beverages such as milk, fruit juice or the like. These beverage cartons are prepared in the form of enclosed containers using materials such as adhesive film or sheet classified as belonging to the International Patent Classification, Section B, Class B67B.
BACKGROUND OF THE INVENTION
While the prior art is replete with paper packages which have been proposed to employ a pulling tab or tongue provided at the top or other portion of such packages to be pulled outwardly for opening them to pour out or drink the contents thereof, they have in practice such as pulling means closed physically either by using a rivet, peg or the like, or by way of adhesive or welding, which has however been left short of any further details either in the manner of attachment or adhesion of such opening means or in their material to practice, and which have been of mere useless casual ideas, and so, there is made available no practical way of testing for the reduction to practice of such packages.
Taking for example certain of such propositions, Japanese Utility Model Laid-open Applications Nos. 103,428/1978 and 91,425/1988 have merely proposed the provision of packages with additional attachment, and Japanese Utility Model No. 131,338/1977 has suggested use of a tongue attachment which lacks any practical manner of attaching, all of which have presented no references to their material or composition of adhesives, and which would lead nothing to the practice of such arts with the lack of disclosure of inventive means or steps that would enable those who wish to do so.
In an attempt to cope with such uncertainty inherent to the prior art construction, the present invention is essentially directed to the provision of an efficient solution to the opening structure of paper for cardboard packages, particularly beverage cartons, with practical presentation of tongue material and composition of adhesive, which may readily be put to practice for the reliable and useful means for the opening of such packages, accordingly.
DISCLOSURE OF THE INVENTION
Therefore, this invention is directed to a useful improvement in the construction of paper or cardboard packages for use with drinkables or beverage products, which comprises a pulling-to-open tongue made of polyethylene terephthalate and such as nitrile rubber, so that the pulling tongue may positively be adhered to a layer of polyethylene which is adapted to totally cover up the surfaces of such packages, thereby to provide an ensured opening of the pulling-to-open tongues.
BRIEF DESCRIPTION OF THE DRAWINGS
In the accompanying drawings, like parts are designated by like reference numerals, and in which:
FIG. 1 is a side elevational view showing a package of the invention by way of a preferred embodiment thereof;
FIG. 2 is a front elevational view of the package depicted in FIG. 1 with its pull tab in a closed position by using adhesive; and
FIG. 3 is a similar front elevational view showing the embodiment of the present invention with the pull tab in its closed position.
DETAILED DESCRIPTION OF THE DRAWINGS
FIGS. 1 and 3 generally depict in a side elevational view a paper package for use with beverage products by way of a preferred embodiment of the present invention. The beverage cartons depicted in FIGS. 1 and 3 have a foldable opening member 2, that is secured by carton adhering members. The opening of foldable opening member 2 causes the opposed surfaces 3 and 3' to be separated to form an opening. The particular form that the opening member 2 takes is slightly different for each of the embodiments. FIG. 1 shows one embodiment wherein the foldable opening member 2 is in the form of a slope. FIG. 2 shows the preferred embodiment where the opposed surfaces of opening are in the form of a peak or gable.
According to the embodiment, as best seen in F
REFERENCES:
patent: 2395352 (1946-02-01), Staude et al.
patent: 2891453 (1959-06-01), Bergstein et al.
patent: 3145630 (1964-08-01), Moore
patent: 3555764 (1971-01-01), Dowling
patent: 3605578 (1971-09-01), Sternau
patent: 4464154 (1984-08-01), Ljungcrantz
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