Patents by Inventor Horst Zorn

Horst Zorn 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).

  • Clamping system for a knife having an angular cross-section
    Patent number: 4338771
    Abstract: The invention is directed to a clamping system for knives with angular cross-sections, especially suited for agricultural cutting operations in which a portion of the length of the sidepiece extending the cutting edge of the knife protrudes over the knife holder when the knife is clamped, with the clamping element engaging the knife in the area of its angular bend. This system allows for a reduction of knife thicknesses while maintaining other desirable characteristics, and provides the knife with greater strength in the area stressed by bending as compared with the unclamped position of the knife.
    Type: Grant
    Filed: November 3, 1980
    Date of Patent: July 13, 1982
    Assignee: VEB Werkzeugkombinat Schmalkalden
    Inventors: Wolfgang Hummel, Gerhard Koch, Siegfried Wilhelm, Horst Zorn