Method for producing an opening means on a pack for liquids
Patent 5158633 Issued on October 27, 1992. Estimated Expiration Date: 
January 11, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 11, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2347686 2721688 2885084 3101879 3883034 Cover strip for the pouring opening in a packing container Through hole deformation and inside sealing tear strip Packing container provided with opening arrangement Container closure Opening means for a packaging means of flexible material InventorAssigneeApplicationNo. 639971 filed on 01/11/1991US Classes:156/223, Bending of one lamina only53/133.4, Reclosable53/296, Cutting and/or shaping means156/69, Application of end closures to containers156/293, Inserting of lamina in hole, aperture or recess of other lamina and adherence to side walls thereof229/125.14For an access opening extending through a nonunitary box end-closing element (i.e., the element is not of one-piece construction with the box)ExaminersPrimary: Ball, Michael W.Assistant: Yoder, Michele K. Attorney, Agent or FirmForeign Patent References
International ClassesB65D 005/70B32B 031/18 Foreign Application Priority Data1985-02-05 GBAbstractA pack for liquids is made at least partially from cardboard or the like, which is impervious to liquid at least on its one surface, by virtue of a plastics coating. The pack has side walls (2-3), a bottom and a top wall (1), which are connected together at least partially by fold (9) and/or sealing seams (4), a tear-open pouring opening (6) which is disposed in the top wall (1) adjacent the edge line (9) and which is preferably covered over by a tear-off cover strip (7) and a pouring edge (8) which is disposed in one plane with the top wall (1). A separate plastics strip (10) is sealed in position in the region of the pouring opening (6), covering over same, and extends beyond the edge line (9) of the top wall (1) with an unsealed end (11), forming a pouring edge (8), and the surface of the plastics strip (10), which covers over the pouring opening (6), is stamped out, exposing the opening (6), and is laid over around the edge (12) of the opening and is sealed in position from the underside.Field of SearchWith preliminary closure shaping and/or treatmentCutting and/or shaping means Adjunct comprising provision to allow access to contents, e.g., spout, straw, drain, opening, etc. Fitment to dispense flowable contents, e.g., spout Reclosable Including discharge assist means (e.g., valve, pour spout, etc.) CLOSURE (E.G., TIE STRING, VALVE, ETC.) NOZZLES, SPOUTS AND POURING DEVICES Reinforced or with container-connected brace Bending of one lamina only Inserting of lamina in hole, aperture or recess of other lamina and adherence to side walls thereof Application of end closures to containers For an access opening extending through a nonunitary box end-closing element (i.e., the element is not of one-piece construction with the box) Nonunitary, peelable closure or securing element (i.e., not of one-piece construction with the box) | |
