Patents by Inventor Karl Kreim

Karl Kreim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Device for the repeated opening and closing of an aperture in a cover of a container
    Patent number: 4280634
    Abstract: Device for the repeated opening and closing of an aperture in a cover of a container which cover is provided at its bottom side with a layer of plastics material, wherein a pouring member 20 of plastics material is provided with a flange 22 which is tightly connected to the plastics material layer 12 on the bottom side of the cover 10 and, at a distance from the upper side of the cover 10, with a bulge 30 which is surrounded by a tightly mounted closing member 28,60.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: July 28, 1981
    Assignees: Firma Peter Eckes, Adam Heldmann Kunststoffverarbeitung
    Inventors: Alfred Wiesenberger, Lutz Mager, Erich Kolb, Karl Kreim