Patents by Inventor Eberhard Malwitz

Eberhard Malwitz 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).

  • Procedure for attachment of vertically oriented ribs on the outside of pipes
    Patent number: 4815651
    Abstract: A process of attachment of at least one rib on a pipe with a thin wall which comprises cutting a hole in the rib that corresponds closely to the outer diameter of the pipe; locating the rib on the outer surface of the pipe; pressurizing the interior of the pipe with a pressure sufficient to force the outer surface of the pipe into close relationship with the inner contour of the rib during or shortly before reaching the soldering temperature; attaching the rib to the pipe by soldering; and selecting the materials for the rib and pipe so that the linear thermal expansion coefficients allow a smaller gap between the pipe and the rib during soldering than when the pipe and rib are at room temperature.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: March 28, 1989
    Assignee: Gesellschaft fur Schwerionenforschung mbH
    Inventor: Eberhard Malwitz