Patents by Inventor Raymond E. Troeger

Raymond E. Troeger 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).

  • Tip cap for a rotor blade
    Patent number: 4411597
    Abstract: A replaceable tip cap for attachment to the end of a rotor blade. The tip cap includes a plurality of walls defining a compartment which, if desired, can be divided into a plurality of subcompartments. The tip cap can include inlet and outlet holes in walls thereof to permit fluid communication of a cooling fluid therethrough. Abrasive material can be attached with the radially outer wall of the tip cap.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: October 25, 1983
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: William K. Koffel, Eugene N. Tuley, Charles H. Gay, Jr., Raymond E. Troeger, Albert P. Sterman, deceased