Patents by Inventor Fritz Gumpert

Fritz Gumpert 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 an arrangement for corona treatment
    Patent number: 4946568
    Abstract: A corona treatment of web-shaped materials or shaped bodies is performed by at least one corona electrode which has an operating region, wherein a gas and/or waste heat produced during the corona treatment is aspirated and at least partially returned to the operating region of the corona electrode.
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: August 7, 1990
    Assignee: Klaus Kalwar
    Inventors: Klaus Kalwar, Horst Berger, Otto Berger, Fritz Gumpert