Patents by Inventor David L. Dupont

David L. Dupont 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).

  • Hydrokinetic energy conversion system with buoyancy and ballast controls to harness underwater currents for the generation of electrical power
    Patent number: 9303619
    Abstract: The hydrokinetic energy conversion system uses, in one embodiment, a perpendicular turbine coupled to an electrical generator and a laminar water flow shroud. The ballast and buoyancy system includes hydrofoils defining lateral sides of the shroud mounted on upper and lower decks. Ballast chambers are defined in some or all of the foils and each has a gas intake port and a water ballast output port. The shroud carries a source of compressed air, valves for control of air flow into the ballast chambers. The ballast and buoyancy system includes a control system with sensors for depth, pitch, yaw and roll of the shroud which generates valve control commands. Another embodiment utilizes an inline turbine and a radial water flow shroud with a plurality of circumferential hydrofoils. Struts mount the turbine near the primary hydrofoil and braces attach ring hydrofoils together. Alternatively, ballast chambers are defined in outboard-mounted ballast pods.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: April 5, 2016
    Assignee: Hydro Alternative Energy, Inc.
    Inventors: Mark Antonucci, Mark A. Leber, Joel C. Haas, David L. Dupont
  • Hydrokinetic Energy Conversion System with Buoyancy and Ballast Controls to Harness Underwater Currents for the Generation of Electrical Power
    Publication number: 20140138954
    Abstract: The hydrokinetic energy conversion system uses, in one embodiment, a perpendicular turbine coupled to an electrical generator and a laminar water flow shroud. The ballast and buoyancy system includes hydrofoils defining lateral sides of the shroud mounted on upper and lower decks. Ballast chambers are defined in some or all of the foils and each has a gas intake port and a water ballast output port. The shroud carries a source of compressed air, valves for control of air flow into the ballast chambers. The ballast and buoyancy system includes a control system with sensors for depth, pitch, yaw and roll of the shroud which generates valve control commands. Another embodiment utilizes an inline turbine and a radial water flow shroud with a plurality of circumferential hydrofoils. Struts mount the turbine near the primary hydrofoil and braces attach ring hydrofoils together. Alternatively, ballast chambers are defined in outboard-mounted ballast pods.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 22, 2014
    Applicant: Hydro Alternative Energy, Inc.
    Inventors: Mark Antonucci, Mark A. Leber, Joel C. Haas, David L. Dupont