Patents by Inventor Gunter Matthiensen

Gunter Matthiensen 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 making a metal seal for flanged joints and a seal made by said method
    Patent number: 4640455
    Abstract: A readily mountable metal seal member is made from a profiled metal bar having a cross section approximately in the shape of a keyhole, the thicker portion of which forms the sealing bead of the seal member and the thinner portion serves to mount it in the joint to be sealed. Sections of the thinner portion may be removed over regions to be curved.
    Type: Grant
    Filed: April 1, 1986
    Date of Patent: February 3, 1987
    Assignee: Leybold-Heraeus GmbH
    Inventors: Lutz Grein, Gunter Matthiensen