Patents by Inventor Jeffrey Marr

Jeffrey Marr 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).

  • In-bank veritcal axis hydropower system
    Patent number: 10502178
    Abstract: A hydropower system for generating electrical energy from water flowing along a bank includes a shaft configured to rotate about a vertical axis, an electrical generator configured to generate electrical energy in response to rotation of the shaft, and a first hydrokinetic device including a plurality of blades attached to the shaft and angularly displaced from each other around the axis. A portion of the first hydrokinetic device is submerged in the water within a cavity formed in the bank, and a portion of the first hydrokinetic device extends outside the cavity and is submerged within the flowing water. The flowing water pushes on the blades located outside the cavity, which drives rotation of the first hydrokinetic device and the shaft about the axis.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: December 10, 2019
    Assignee: Regents of the University of Minnesota
    Inventors: Michele Guala, Jeffrey Marr, Lian Shen
  • IN-BANK VERTICAL AXIS HYDROPOWER SYSTEM
    Publication number: 20180258903
    Abstract: A hydropower system for generating electrical energy from water flowing along a bank includes a shaft configured to rotate about a vertical axis, an electrical generator configured to generate electrical energy in response to rotation of the shaft, and a first hydrokinetic device including a plurality of blades attached to the shaft and angularly displaced from each other around the axis. A portion of the first hydrokinetic device is submerged in the water within a cavity formed in the bank, and a portion of the first hydrokinetic device extends outside the cavity and is submerged within the flowing water. The flowing water pushes on the blades located outside the cavity, which drives rotation of the first hydrokinetic device and the shaft about the axis.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 13, 2018
    Inventors: Michele Guala, Jeffrey Marr, Lian Shen