Patents by Inventor Tracy A. Prevo

Tracy A. Prevo 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: 10778119
    Abstract: Systems and methods for modified dimensions, configurations, and structure for rotor electrodes and stator electrodes to improve power transfer between such electrodes. Swept-forward, swept-backward, and Yin-Yang shaped electrodes can be used to shift the power response of the motor forwards or backwards in the rotation of the rotor electrode. Modifying the leading edge of the rotor electrode and/or the pitches of the rotor and/or stator electrodes relative to one another may be used to further change various characteristics of the motor, including the power transfer efficiency, the relative locations of the peak overlap between electrodes, and locations of maximum and minimum mechanical strain on the rotors. A curved power feed structure associated with the rotor electrode may be used to distribute the electric charges over a larger area and protect against arcing from the rotor electrode.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: September 15, 2020
    Assignee: TransVolt International Energy Corporation
    Inventors: David B. Goodson, Tracy A. Prevo
  • Patent number: 10364980
    Abstract: Technologies are described for applying electrical energy according to a physical extent of a combustion reaction, which may include: supporting a combustion reaction at a fuel source; sensing a physical extent of the combustion reaction with respect to a plurality of different locations of a plurality of electrodes; and applying electrical energy to the combustion reaction via at least one of the plurality of electrodes responsive to the physical extent of the combustion reaction. Sensing the physical extent of the combustion reaction may include receiving a sensor signal corresponding to the physical extent of the combustion reaction.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 30, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Joseph Colannino, David B. Goodson, Igor A. Krichtafovitch, Tracy A. Prevo, Christopher A. Wiklof
  • Publication number: 20190081577
    Abstract: Systems and methods for modified dimensions, configurations, and structure for rotor electrodes and stator electrodes to improve power transfer between such electrodes. Swept-forward, swept-backward, and Yin-Yang shaped electrodes can be used to shift the power response of the motor forwards or backwards in the rotation of the rotor electrode. Modifying the leading edge of the rotor electrode and/or the pitches of the rotor and/or stator electrodes relative to one another may be used to further change various characteristics of the motor, including the power transfer efficiency, the relative locations of the peak overlap between electrodes, and locations of maximum and minimum mechanical strain on the rotors. A curved power feed structure associated with the rotor electrode may be used to distribute the electric charges over a larger area and protect against arcing from the rotor electrode.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 14, 2019
    Inventors: David B. Goodson, Tracy A. Prevo
  • Patent number: 10101024
    Abstract: According to embodiments, a co-fired or multiple fuel combustion system is configured to apply an electric field to a combustion region corresponding to a second fuel that normally suffers from poor combustion and/or high sooting. Application of an AC voltage to the combustion region was found to increase the extent of combustion and significantly reduce soot evolved from the second fuel.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: October 16, 2018
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: David B. Goodson, Tracy A. Prevo, Joseph Colannino, Robert E. Breidenthal, Igor A. Krichtafovitch, Christopher A. Wiklof
  • Patent number: 9958154
    Abstract: A charge electrode configured to impart a time-varying charge to a flame and a shape electrode located outside the flame may be driven synchronously by a voltage source through time varying voltage(s). The flame may be flattened or compressed responsive to an electric field produced by the shape electrode acting on the charges imparted to the flame.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: May 1, 2018
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Joseph Colannino, Thomas S. Hartwick, David B. Goodson, Tracy A. Prevo, Christopher A. Wiklof
  • Patent number: 9909759
    Abstract: In a combustion system, a charge source is configured to cooperate with a collection plate and a director conduit to cause at least one particle charge-to-mass classification to be reintroduced to a flame for further reaction.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: March 6, 2018
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: David B. Goodson, Tracy A. Prevo, Joseph Colannino, Robert E. Breidenthal, Igor A. Krichtafovitch, Christopher A. Wiklof
  • Patent number: 9879858
    Abstract: An inertial electrode launcher may be configured to project charged particles or a voltage comprising an inertial electrode proximate a flame or combustion gas produced by the flame.
    Type: Grant
    Filed: December 30, 2012
    Date of Patent: January 30, 2018
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: David B. Goodson, Tracy A. Prevo, Joseph Colannino, Robert E. Breidenthal, Christopher A. Wiklof
  • Publication number: 20170261201
    Abstract: According to embodiments, a co-fired or multiple fuel combustion system is configured to apply an electric field to a combustion region corresponding to a second fuel that normally suffers from poor combustion and/or high sooting. Application of an AC voltage to the combustion region was found to increase the extent of combustion and significantly reduce soot evolved from the second fuel.
    Type: Application
    Filed: May 25, 2017
    Publication date: September 14, 2017
    Inventors: DAVID B. GOODSON, TRACY A. PREVO, JOSEPH COLANNINO, ROBERT E. BREIDENTHAL, IGOR A. KRICHTAFOVITCH, CHRISTOPHER A. WIKLOF
  • Patent number: 9696031
    Abstract: According to embodiments, a co-fired or multiple fuel combustion system is configured to apply an electric field to a combustion region corresponding to a second fuel that normally suffers from poor combustion and/or high sooting. Application of an AC voltage to the combustion region was found to increase the extent of combustion and significantly reduce soot evolved from the second fuel.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: July 4, 2017
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: David B. Goodson, Tracy A. Prevo, Joseph Colannino, Robert E. Breidenthal, Igor A. Krichtafovitch, Christopher A. Wiklof
  • Patent number: 9605849
    Abstract: A system is configured to apply a voltage, charge, and/or an electric field to a combustion reaction responsive to acoustic feedback from the combustion reaction.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: March 28, 2017
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Robert E. Breidenthal, Vincenzo Casasanta, III, Joseph Colannino, David B. Goodson, Tracy A. Prevo, Richard F. Rutkowski, Christopher A. Wiklof
  • Publication number: 20160273764
    Abstract: Technologies are described for applying electrical energy according to a physical extent of a combustion reaction, which may include: supporting a combustion reaction at a fuel source; sensing a physical extent of the combustion reaction with respect to a plurality of different locations of a plurality of electrodes; and applying electrical energy to the combustion reaction via at least one of the plurality of electrodes responsive to the physical extent of the combustion reaction. Sensing the physical extent of the combustion reaction may include receiving a sensor signal corresponding to the physical extent of the combustion reaction.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 22, 2016
    Inventors: JOSEPH COLANNINO, DAVID B. GOODSON, IGOR A. KRICHTAFOVITCH, TRACY A. PREVO, CHRISTOPHER A. WIKLOF
  • Publication number: 20160265769
    Abstract: In a combustion system, a charge source is configured to cooperate with a collection plate and a director conduit to cause at least one particle charge-to-mass classification to be reintroduced to a flame for further reaction.
    Type: Application
    Filed: May 26, 2016
    Publication date: September 15, 2016
    Inventors: DAVID B. GOODSON, TRACY A. PREVO, JOSEPH COLANNINO, ROBERT E. BREIDENTHAL, IGOR A. KRICHTAFOVITCH, CHRISTOPHER A. WIKLOF
  • Publication number: 20160245507
    Abstract: According to embodiments, a co-fired or multiple fuel combustion system is configured to apply an electric field to a combustion region corresponding to a second fuel that normally suffers from poor combustion and/or high sooting. Application of an AC voltage to the combustion region was found to increase the extent of combustion and significantly reduce soot evolved from the second fuel.
    Type: Application
    Filed: February 22, 2016
    Publication date: August 25, 2016
    Inventors: David B. GOODSON, Tracy A. PREVO, Joseph COLANNINO, Robert E. BREIDENTHAL, Igor A. KRICHTAFOVITCH, Christopher A. WIKLOF
  • Publication number: 20160186995
    Abstract: A system is configured to apply a voltage, charge, and/or an electric field to a combustion reaction responsive to acoustic feedback from the combustion reaction.
    Type: Application
    Filed: March 8, 2016
    Publication date: June 30, 2016
    Inventors: ROBERT E. BREIDENTHAL, VINCENZO CASASANTA, III, JOSEPH COLANNINO, DAVID B. GOODSON, TRACY A. PREVO, RICHARD F. RUTKOWSKI, CHRISTOPHER A. WIKLOF
  • Patent number: 9377195
    Abstract: A combustion system includes a subsystem for electrically biasing or charging a flame and a virtual electrode launcher configured to launch a virtual electrode in proximity to the flame or combustion gas produced by the flame.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: June 28, 2016
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: David B. Goodson, Tracy A. Prevo, Joseph Colannino, Robert E. Breidenthal, Christopher A. Wiklof
  • Patent number: 9371994
    Abstract: In a combustion system, a charge source is configured to cooperate with a collection plate and a director conduit to cause at least one particle charge-to-mass classification to be reintroduced to a flame for further reaction.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: June 21, 2016
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: David B. Goodson, Tracy A. Prevo, Joseph Colannino, Robert E. Breidenthal, Igor A. Krichtafovitch, Christopher A. Wiklof
  • Patent number: 9366427
    Abstract: A solid fuel burner may include a system for electrodynamic homogenization. One or more electrodes may apply an electric field to burning solid fuel or a region proximate the burning solid fuel. The electric field causes mixing and homogenization of volatilized fractions of the solid fuel, combustion gases, and air. The improved mixing and homogenization may reduce emission of carbon monoxide (CO), reduce emission of oxides of nitrogen (NOx), reduce oxygen in flue gas, increase temperature of flue gas, and/or allow for a larger grate surface.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: June 14, 2016
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Tim W. Sonnichsen, Joseph Colannino, David B. Goodson, Tracy A. Prevo, Christopher A. Wiklof
  • Patent number: 9310077
    Abstract: A system is configured to apply a voltage, charge, and/or an electric field to a combustion reaction responsive to acoustic feedback from the combustion reaction.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: April 12, 2016
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Robert E. Breidenthal, Vincenzo Casasanta, III, Joseph Colannino, David B. Goodson, Tracy A. Prevo, Richard F. Rutkowski, Christopher A. Wiklof
  • Patent number: 9243800
    Abstract: Gaseous particles or gas-entrained particles may be conveyed by electric fields acting on charged species included in the gaseous or gas-entrained particles.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: January 26, 2016
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: David B. Goodson, Thomas S. Hartwick, Tracy A. Prevo, Joseph Colannino, Christopher A. Wiklof
  • Patent number: 9209654
    Abstract: An apparatus for enhancing flame radiation includes a flame charging system and an electrically isolated electrode. A time-varying voltage is applied to the flame charging system and the flame charging system imparts a corresponding time-varying charge or time-varying voltage onto the flame. The flame responds to the time-varying charge or voltage by increasing its luminosity.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 8, 2015
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Joseph Colannino, Tracy A. Prevo, Igor A. Krichtafovitch, Christopher A. Wiklof