Patents by Inventor Dieter Fedrau

Dieter Fedrau 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).

  • Metallic hollow component with a metallic insert, especially turbine blade with cooling insert
    Patent number: 4859141
    Abstract: A metallic hollow structural part, whose inner geometry is matched to at least one metallic insert supported thereat and pre-profiled to the finished condition, which is secured at the hollow structural part under predetermined heat influence, especially a turbine blade with a cooling insert. The insert is made of memory material and upon exceeding a predetermined temperature threshold value, abuts without play at the inner geometry. The hollow structural part and the insert can be fixedly connected with each other metallurgically or in the way of the "memory effect".
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: August 22, 1989
    Assignee: MTU-Motoren-und Turbinen-Union Muenchen GmbH
    Inventors: Helmut Maisch, Dieter Fedrau