Patents by Inventor Gaylen Springer

Gaylen Springer 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).

  • Turbofan engine having central bypass duct and peripheral core engine
    Patent number: 6532731
    Abstract: A turbofan engine has a fan bypass duct which is at the center of the engine surrounding the fan and compressor drive shafts and an annular drive engine which is located at the outer periphery of the engine surrounding the bypass duct. The annular drive engine includes an annular shell which has the compressor and turbine mounted on it. The bypass fan is rotatably mounted on a central shaft and the shell is attached to the tips of the fan blades. Thus, the fan and shell rotate together. Because the bypass duct is located at the center of the engine, the fan and compressor drive shafts are not heated by the core engine and remain at approximately ambient temperature.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: March 18, 2003
    Inventor: Gaylen Springer
  • TURBOFAN ENGINE HAVING CENTRAL BYPASS FAN DUCT AND ANNULAR DRIVE ENGINE
    Publication number: 20020194834
    Abstract: A turbofan engine has a fan bypass duct which is at the center of the engine surrounding the fan and compressor drive shafts and a core engine which is located at the outer periphery of the engine surrounding the bypass duct. The core engine includes an annular shell which has the compressor and turbine mounted on it. The bypass fan is rotatably mounted on a central shaft and the shell is attached to the tips of the fan blades. Thus, the fan and shell rotate together. Because the bypass duct is located at the center of the engine, the fan and compressor drive shafts are not heated by the core engine and remain at approximately ambient temperature.
    Type: Application
    Filed: June 22, 2001
    Publication date: December 26, 2002
    Inventor: Gaylen Springer