Patents by Inventor David Papini

David Papini 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).

  • Patent number: 11898533
    Abstract: A wind-powered generator includes a housing having an inlet, an outlet, and a throat that are coaxial about an axis of symmetry of the housing. A nacelle includes a first rotor mounted on a first end of the nacelle and positioned at least partially within the inlet, the first rotor outputting a first power output, and a second rotor mounted on a second end of the nacelle, the second rotor being positioned at least partially within the outlet and having a diameter less than the first rotor. The second rotor outputting a second power output. The first and second power outputs are combined to provide a combined power output, and a nacelle ratio between outer diameters of the nacelle at the inlet and at the outlet is between about 1.60-1.70, and a housing ratio between inner diameters of the housing at the inlet and at the outlet is about 1.85-1.97.
    Type: Grant
    Filed: February 21, 2023
    Date of Patent: February 13, 2024
    Inventor: David Papini
  • Publication number: 20230204009
    Abstract: A wind-powered generator includes a housing having an inlet, an outlet, and a throat that are coaxial about an axis of symmetry of the housing. A nacelle includes a first rotor mounted on a first end of the nacelle and positioned at least partially within the inlet, the first rotor outputting a first power output, and a second rotor mounted on a second end of the nacelle, the second rotor being positioned at least partially within the outlet and having a diameter less than the first rotor. The second rotor outputting a second power output. The first and second power outputs are combined to provide a combined power output, and a nacelle ratio between outer diameters of the nacelle at the inlet and at the outlet is between about 1.60-1.70, and a housing ratio between inner diameters of the housing at the inlet and at the outlet is about 1.85-1.97.
    Type: Application
    Filed: February 21, 2023
    Publication date: June 29, 2023
    Inventor: David Papini
  • Patent number: 11585318
    Abstract: A wind-powered generator includes a housing having an inlet, an outlet, and a throat that are coaxial about an axis of symmetry of the housing. A nacelle includes a first rotor mounted on a first end of the nacelle and positioned at least partially within the inlet, the first rotor outputting a first power output, and a second rotor mounted on a second end of the nacelle, the second rotor being positioned at least partially within the outlet and having a diameter less than the first rotor. The second rotor outputting a second power output. The first and second power outputs are combined to provide a combined power output, and a nacelle ratio between outer diameters of the nacelle at the inlet and at the outlet is between about 1.60-1.70, and a housing ratio between inner diameters of the housing at the inlet and at the outlet is about 1.85-1.97.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: February 21, 2023
    Inventor: David Papini
  • Publication number: 20220195979
    Abstract: A wind-powered generator is provided. The wind-powered generator includes a housing defining an internal volume and having an inlet, an outlet, and a throat, the inlet, outlet, and throat being coaxial about an axis of symmetry of the housing, wherein a portion of the internal volume between a leading edge of the housing and the throat is defined by revolution of a curve about the axis of symmetry, and the internal volume between the throat and a trailing edge of the outlet is defined by revolution of a substantially straight line about the axis of symmetry and a nacelle mounted within the internal volume.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 23, 2022
    Inventor: David Papini
  • Patent number: D960836
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: August 16, 2022
    Inventor: David Papini