Method of manufacturing packaging container
August 2, 2008. 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 3048951 3082583 Packing containers with ripping thread opening and packing material webs for the manufacture of the packing containers Process for the production of a packaging receiving a sterile liquid Arrangement on packing machines Method and an arrangement for the manufacture of packing containers Method and an arrangement for the manufacture of packing containers Method and an arrangement on packing machines Patent #: 4784697 InventorApplicationNo. 07/227523 filed on 08/02/1988US Classes:53/451, Vertically formed, filled, and sealed tubular package53/551Vertically disposed tubeExaminersPrimary: Spruill, Robert L.Assistant: Bianca, Beth Attorney, Agent or FirmInternational ClassesB65B 9/20 (20060101)B65B 9/10 (20060101) Foreign Application Priority Data1987-08-03 JPAbstractA method for making parallelepiped or brick-shaped containers of greater mechanical strength and better appearance, avoiding any mismatching of the printed patterns due to displaced joints in the middle of the side of the container walls. A longitudinal seal is positioned at the corners rather than on the face of the side walls, thus leaving the side walls without joints or splices. A packaging material web taped coated with thermoplastic material and provided with folding lines is twisted when passing through two bending rollers and one slack-absorbing roller and is converted into a cylindrical shaped and then sealed at the overlapping side edges. The cylindrical container is then filled with a liquid through a filler pipe and sealed at predetermined intervals. | |
