Patents by Inventor Helmut Hajo

Helmut Hajo 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).

  • Method of and arrangement for thermal treatment of continuously moving metal bands
    Patent number: 5431755
    Abstract: During thermal treatment of continuously moving metal bands more heat is supplied over a part of a treatment path to edge regions of the band per surface unit than to the center region of the band. This prevents formation of a wavy shape in the edge regions of the metal band which is advantageous for a further treatment.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: July 11, 1995
    Assignee: Vits Maschinenbau GmbH
    Inventors: Helmut Hajo, Wilhelm Ernenputsch, Udo Unger