Patents by Inventor Erich Treiss

Erich Treiss 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).

  • Controlling the zone of longitudinally seam-welding split tubes
    Patent number: 4479043
    Abstract: The h.f.-heated edges of a split tube are prepared prior to heating by means of contour-rolling the edges in order to obtain a convex contour in which the temperature is isothermically distributed, parallel to the convex edges.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: October 23, 1984
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Walter Hess, Franz Nicolai, Erich Treiss, Otto Gotting