Patents by Inventor Paul K. Shumpert

Paul K. Shumpert 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).

  • Propulsion system for a vertical and short takeoff and landing aircraft
    Patent number: 5209428
    Abstract: The invention is a propulsion system for a V/STOL type aircraft. In detail, the invention comprises a turbofan engine including a fan section, compressor section, combustion section, turbine section and nozzle section. The turbine section comprises a low-pressure turbine portion coupled to and driving the fan section and a high-pressure turbine portion coupled to and driving the compressor section. A lift fan is coupled to the fan section by means of a drive shaft. A clutch is incorporated for decoupling the lift fan from the fan section. A mechanism is incorporated for extracting additional power from the low-pressure turbine portion of the turbine section to drive the lift fan that augments the basic engine thrust for V/STOL operation.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: May 11, 1993
    Assignee: Lockheed Corporation
    Inventors: Paul M. Bevilaqua, Paul K. Shumpert