Patents by Inventor Robert Wege

Robert Wege 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 production of single-crystal turbine blades
    Patent number: 5275228
    Abstract: A process and apparatus for the production of a single-crystal article, such as a turbine blade, by casting a molten metal into a casting mold with a single crystal seed crystal at the bottom of the casting mold. The casting mold is heated and vacuum-purified after which the seed crystal is introduced into an opening at the bottom of the mold in a matter of a few seconds whereafter the molten metal is immediately cast onto the seed crystal in the casting mold. The seed crystal is carried by a holder which is lifted to bring the seed crystal into the open bottom of the casting mold in sealed relation in the mold.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: January 4, 1994
    Assignee: Sulzer-MTU Casting Technology GmbH
    Inventors: Jurgen Wortmann, Robert Wege, Fritz Staub, Bruno Walser