Patents by Inventor Rolf Kohnlein

Rolf Kohnlein 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).

  • Package with reinforcing insert
    Patent number: 4022373
    Abstract: A package for coffee or the like of tubular configuration having an outer sleeve and a tubular reinforcing member within the sleeve. A tear strip is located between the sleeve and the reinforcing member at the upper end of the package to provide a common and flush end with the reinforcing member. The narrow strip peripherally surrounds the reinforcing member and projects outwardly from the package. The package has a fin-seal closure.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: May 10, 1977
    Assignee: Fr. Hesser Maschinenfabrik AG
    Inventors: Rolf Kohnlein, Klaus Domke, Walter Bandle, Helmut Schottle