Patents by Inventor Wilhelm Kluter

Wilhelm Kluter 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).

  • Patent number: 5097955
    Abstract: In a batch package 20 which includes a stack 6 of individual packages 16, the external film 17 as well as the multilayer film 2 of the individual film 16 include several layers which are bonded to each other. The core layer 3 is made of a polypropylene polymer, the external layers 4, 5 of one of the films are made of a polypropylene copolymer or terpolymer consisting of ethylene or olefins which have 4 to 10 C-atoms, the external layer 21, 22 of the second film are made of acrylic resin. During heat sealing and shrinkage, the external layers 4, 5, 21, 22 of one film are bonded to each other, respectively; however, they are not bonded to the external layers of the second film; i.e. even after the shrinkage and heat sealing the external film 17 is not joined to the individual package 16 and the multilayer film 2 enclosing the latter.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: March 24, 1992
    Assignee: Feldmuehle Aktiengesellschaft
    Inventors: Wilhelm Kluter, Harry Krohn