Patents by Inventor Gunther Hannappel

Gunther Hannappel 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).

  • Scanning device for welding torches
    Patent number: 4015101
    Abstract: A scanning device for causing a torch to follow impact lines or edges of the workpiece includes a magnet-field generator which moves transversely to the line to be followed as well as a scanning device which is characterized by two scanning heads arranged on both sides of the line being followed with the signals of the scanning head being electrically connected in opposition to each other.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: March 29, 1977
    Assignee: Messer Griesheim GmbH
    Inventors: Gunther Hannappel, Gunther Hahn