Patents by Inventor David M. Fratantoni

David M. Fratantoni 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).

  • Environmental thermal energy conversion
    Patent number: 10989178
    Abstract: A method of electricity production using water thermal energy includes compressing an enclosed working fluid at a first vertical position relative to a surface of a body of water to cause the fluid to move to a second vertical position relative to the surface and subsequently move to the first position in a closed loop, an external environment at the second position having a greater temperature than an external environment at the first position such that the fluid transitions between a liquid phase at the first position and a vapor phase at the second position, the compressing using power from a battery, and expanding the fluid at the second position to generate electricity to charge the battery. The first and second positions may be two depths of the body of water or a height of an atmosphere above the body of water and a depth of the body of water.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: April 27, 2021
    Assignee: Seatrec, Inc.
    Inventors: Jack A. Jones, Yi Chao, David M. Fratantoni, Michael Martin Zedelmair, Robin Edward Willis, Robert Scott Leland
  • ENVIRONMENTAL THERMAL ENERGY CONVERSION
    Publication number: 20200003188
    Abstract: A method of electricity production using water thermal energy includes compressing an enclosed working fluid at a first vertical position relative to a surface of a body of water to cause the fluid to move to a second vertical position relative to the surface and subsequently move to the first position in a closed loop, an external environment at the second position having a greater temperature than an external environment at the first position such that the fluid transitions between a liquid phase at the first position and a vapor phase at the second position, the compressing using power from a battery, and expanding the fluid at the second position to generate electricity to charge the battery. The first and second positions may be two depths of the body of water or a height of an atmosphere above the body of water and a depth of the body of water.
    Type: Application
    Filed: September 6, 2019
    Publication date: January 2, 2020
    Inventors: Jack A. Jones, Yi Chao, David M. Fratantoni, Michael Martin Zedelmair, Robin Edward Willis, Robert Scott Leland
  • Environmental thermal energy conversion
    Patent number: 10443581
    Abstract: A method of electricity production using water thermal energy includes compressing an enclosed working fluid at a first vertical position relative to a surface of a body of water to cause the fluid to move to a second vertical position relative to the surface and subsequently move to the first position in a closed loop, an external environment at the second position having a greater temperature than an external environment at the first position such that the fluid transitions between a liquid phase at the first position and a vapor phase at the second position, the compressing using power from a battery, and expanding the fluid at the second position to generate electricity to charge the battery. The first and second positions may be two depths of the body of water or a height of an atmosphere above the body of water and a depth of the body of water.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: October 15, 2019
    Assignee: Seatrec, Inc.
    Inventors: Jack A. Jones, Yi Chao, David M. Fratantoni, Michael Martin Zedelmair, Robin Edward Willis, Robert Scott Leland
  • ENVIRONMENTAL THERMAL ENERGY CONVERSION
    Publication number: 20180119680
    Abstract: A method of electricity production using water thermal energy includes compressing an enclosed working fluid at a first vertical position relative to a surface of a body of water to cause the fluid to move to a second vertical position relative to the surface and subsequently move to the first position in a closed loop, an external environment at the second position having a greater temperature than an external environment at the first position such that the fluid transitions between a liquid phase at the first position and a vapor phase at the second position, the compressing using power from a battery, and expanding the fluid at the second position to generate electricity to charge the battery. The first and second positions may be two depths of the body of water or a height of an atmosphere above the body of water and a depth of the body of water.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 3, 2018
    Inventors: Jack A. Jones, Yi Chao, David M. Fratantoni, Michael Martin Zedelmair, Robin Edward Willis, Robert Scott Leland