Patents by Inventor Patrick Ian McNamee

Patrick Ian McNamee 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).

  • Acoustic noise suppressing ducted fan propulsor mounting arrangement and treatments
    Patent number: 12195167
    Abstract: A general mounting method for ducted fan propulsors is disclosed. This mounting method uses extremely slender stators that connect the duct ring to the propulsor which is mounted in the middle and drives the rotor, fan or propeller. The slender stators take the form of spokes and as such are so slender that the midspan stresses within the spokes are dominated by axial tension loads rather than the shear loads experienced by conventional stators. The spokes may have an aerodynamic shape and damping methods may be used to retard spoke vibrations and transmission of engine vibrations to the duct and force. The duct itself is also stiffened by the spoke arrangement, thereby reducing low frequency vibration modes.
    Type: Grant
    Filed: August 17, 2023
    Date of Patent: January 14, 2025
    Assignee: University of Kansas
    Inventors: Ronald Martin Barrett, Lauren Nicole Schumacher, Patrick Ian McNamee, John Austin Haug, Joshua Donald Mudd, Dalton Bastiaan Prins, Nicholas Donald Werner
  • Acoustic noise suppressing ducted fan propulsor mounting arrangement and treatments
    Patent number: 11767097
    Abstract: A general mounting method for ducted fan propulsors is disclosed. This mounting method uses extremely slender stators that connect the duct ring to the propulsor which is mounted in the middle and drives the rotor, fan or propeller. The slender stators take the form of spokes and as such are so slender that the midspan stresses within the spokes are dominated by axial tension loads rather than the shear loads experienced by conventional stators. The spokes may have an aerodynamic shape and damping methods may be used to retard spoke vibrations and transmission of engine vibrations to the duct and force. The duct itself is also stiffened by the spoke arrangement, thereby reducing low frequency vibration modes.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: September 26, 2023
    Assignee: University of Kansas
    Inventors: Ronald Martin Barrett, Lauren Nicole Schumacher, Patrick Ian McNamee, John Austin Haug, Joshua Donald Mudd, Dalton Bastiaan Prins, Nicholas Donald Werner
  • ACOUSTIC NOISE SUPPRESSING DUCTED FAN PROPULSOR MOUNTING ARRANGEMENT AND TREATMENTS
    Publication number: 20210107623
    Abstract: A general mounting method for ducted fan propulsors is disclosed. This mounting method uses extremely slender stators that connect the duct ring to the propulsor which is mounted in the middle and drives the rotor, fan or propeller. The slender stators take the form of spokes and as such are so slender that the midspan stresses within the spokes are dominated by axial tension loads rather than the shear loads experienced by conventional stators. The spokes may have an aerodynamic shape and damping methods may be used to retard spoke vibrations and transmission of engine vibrations to the duct and force. The duct itself is also stiffened by the spoke arrangement, thereby reducing low frequency vibration modes.
    Type: Application
    Filed: April 16, 2019
    Publication date: April 15, 2021
    Inventors: Ronald Martin Barrett, Lauren Nicole Schumacher, Patrick Ian McNamee, John Austin Haug, Joshua Donald Mudd, Dalton Bastiaan Prins, Nicholas Donald Werner