Patents by Inventor Berthold H. Kegel

Berthold H. Kegel 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).

  • Process and apparatus for resin-coating of extrusions
    Patent number: 5079033
    Abstract: An extrusion is coated with a resin by passing the extrusion continuously through a belt-shaped plasma formed by means of a stationary annular electron cyclotron resonance magnet which completely surrounds the extrusion. The resin coating is produced by plasma polymerization of a monomer using microwaves having a frequency of 2.45 GHz.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: January 7, 1992
    Assignees: Technics Plasma GmbH, Krauss Maffei AG
    Inventors: Stefan Schulz, Berthold H. Kegel, Wolfgang Mohl