Patents Assigned to Van Leer Verpackungen GmbH
  • Patent number: 4462536
    Abstract: The invention relates to a container made from a plurality of fiber layers, preferably from craft paper which fiber layers of wall (1) and bottom (2) are interconnected by a hot meltable adhesive. At the location of the connection incisions (14) are made in the wall which extend parallel to the axis of the container and have a cutting plane (14) extending at an acute angle (.alpha.) with the respective tangential plane (167). At the inner side of the lips (13) obtained in this way an adhesive is applied in hot conditions at least at the folding line (8) and only thereafter the lips (13) are folded.The container can have an overhead lid (4), the lid body (5) and disc (7) being made in a corresponding way.
    Type: Grant
    Filed: January 19, 1983
    Date of Patent: July 31, 1984
    Assignee: Van Leer Verpackungen GmbH
    Inventors: Norbert E. A. Junge, Gerrit Kraan
  • Patent number: 4418838
    Abstract: Tablet box with cover and sliding element whereby the bottom and one of the side walls of the box together with a bar of said sliding element are forming a trough in which the tablets are slipping and from the under end of which one single tablet is dispensed when the sliding element is operated, whereas the special form of the component parts prevents falling out of further tablets from said box.
    Type: Grant
    Filed: July 7, 1981
    Date of Patent: December 6, 1983
    Assignee: Van Leer Verpackungen GmbH
    Inventor: Ferenc Gallina
  • Patent number: 3947180
    Abstract: A method and apparatus for combined injection moulding and blow forming of containers or objects of plastics material. A preform is formed on a mandrel by injection moulding. The mandrel with the preform is transferred from the injection mould to a blow forming mould and the preform is blow formed to the final product. It is characteristic of the invention that the preforms are formed in the injection mould and extracted from the injection mould at a higher rate than their forming in the blow forming mould, two or more preforms being simultaneously blow formed in two or more blow forming moulds. This arrangement has the advantage of providing complete independence of the two production cycles. The apparatus includes a conveyor for the mandrels carrying the preforms, this conveyor extending from an injection mould to a blow forming mould.
    Type: Grant
    Filed: August 15, 1973
    Date of Patent: March 30, 1976
    Assignee: Van Leer Verpackungen GmbH
    Inventor: Robert Neumaier