Patents by Inventor Franz Grafenegger

Franz Grafenegger 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).

  • Radial bearing for high-speed turbomachinery
    Patent number: 4385787
    Abstract: A radial bearing for high-speed turbo-machinery, which is constructed as an aerodynamic or spontaneously-acting bearing, wherein a spirally-wound foil is inserted in an annular space formed between the inner bearing journal and the outer bearing sleeve.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: May 31, 1983
    Assignee: MTU Motoren-und Turbinen-Union Munchen GmbH
    Inventors: Karl-Ullrich Reisenweber, Franz Grafenegger