Patents by Inventor Ernst Wortmann

Ernst Wortmann 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).

  • Heating arrangement for revolving bodies whose diameter varies during production thereof by build-up welding
    Patent number: 4353689
    Abstract: A heating arrangement is provided for apparatus for producing cylindrical bodies by build-up welding wherein the diameter of the body being produced varies during the build-up welding operation. The heating arrangement is composed of individual heating elements arranged in the region of a sector around the revolving body with the heating elements being controlled both individually and in groups.
    Type: Grant
    Filed: October 22, 1980
    Date of Patent: October 12, 1982
    Assignee: Thyssen Aktiengesellschaft vorm. August Thyssen-Hutte
    Inventors: Jose Fernandez, Jurgen Herm, Heinz Krakow, Ernst Wortmann, Harald Tomsen