Patents by Inventor Christopher A. Wiklof

Christopher A. Wiklof 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).

  • ADAPTIVE TRIGGER FOR A MICROCURRENT STIMULATION DEVICE
    Publication number: 20190217093
    Abstract: A microcurrent treatment device includes an adaptive trigger circuit configured to dynamically determine a triggering threshold for applying a therapeutic microcurrent via a treatment electrode to a nerve node on a person's face for treatment of a sinus condition.
    Type: Application
    Filed: February 20, 2019
    Publication date: July 18, 2019
    Inventors: John Claude, Christopher A. Wiklof
  • ELECTRODYNAMIC CONTROL IN A BURNER SYSTEM
    Publication number: 20190203935
    Abstract: A burner system and a retrofit flame control system for an existing burner system are disclosed. The burner system may include burner components, electrodynamic components, and a data interface. The data interface may receive a command for controlling the burner components and prepare a command for controlling the electrodynamic components at least partially based on the command for controlling the burner components.
    Type: Application
    Filed: March 8, 2019
    Publication date: July 4, 2019
    Inventor: Christopher A. Wiklof
  • Fuel combustion system with a perforated reaction holder
    Patent number: 10337729
    Abstract: A combustion system such as a furnace or boiler includes a perforated reaction holder configured to hold a combustion reaction that produces very low oxides of nitrogen (NOx).
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: July 2, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Douglas W. Karkow, Robert E. Breidenthal, Joseph Colannino, Christopher A. Wiklof
  • Flame visualization control for electrodynamic combustion control
    Patent number: 10295185
    Abstract: A combustion system includes, burner, a camera, and a control circuit. The burner initiates a combustion reaction. The camera takes a plurality of images of the combustion reaction. The control circuit produces from the images an averaged image and adjusts the combustion reaction based on the adjusted image.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: May 21, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Joseph Colannino, Jesse Dumas, Christopher A. Wiklof
  • Transient control of a combustion Reaction
    Patent number: 10295175
    Abstract: Technologies are provided for applying energy to a combustion reaction. For example, a method may include supporting a combustion reaction; applying energy to the combustion reaction via one or more control signals; detecting a change in one or more parameters associated with the combustion reaction; comparing the change in the one or more parameters to a database; determining whether the change in the one or more parameters corresponds to a change in the combustion reaction; selecting a change in the one or more control signals from the database; and applying the change in the one or more control signals to change the a value of the energy applied to the combustion reaction responsive to changes in the one or more parameters associated with in the combustion reaction.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: May 21, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Joseph Colannino, Richard F. Rutkowski, Igor A. Krichtafovitch, David B. Goodson, Christopher A. Wiklof
  • Magnetic field imaging system
    Patent number: 10295616
    Abstract: According to embodiments, multi-axis magnetic sensors (magnetometers) are disposed in an array or a plurality of arrays. The magnetic sensors can be disposed on modules that form the array. The magnetic sensors can each sense a local magnetic field coincident with the respective sensors. Data corresponding to the local magnetic fields can be analyzed by a magnetic field analysis circuit and assembled to form an image corresponding to the sensed magnetic field(s). The magnetic field analysis circuit can output the image corresponding to near-field magnetic features.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: May 21, 2019
    Assignee: INNOVAURA CORPORATION
    Inventors: David B. Goodson, Keith Mullins, Alan Corwin, Ronald J. Schoenberg, C. Macgill Lynde, Christopher A. Wiklof
  • PERFORATED FLAME HOLDER SUPPORT STRUCTURE WITH HEATING ELEMENT
    Publication number: 20190137096
    Abstract: In a fuel and oxidant combustion system, a flame holder support structure includes a heating element that receives electrical energy from an electrical power source. The heating element is raised to an auto-ignition temperature of a fuel and oxidant mixture directed, along an axis proximate the flame holder support structure, to a flame holder for combustion thereof.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 9, 2019
    Inventors: DONALD KENDRICK, DOUGLAS W. KARKOW, JAMES DANSIE, MATT HOSIE, CHRISTOPHER A. WIKLOF
  • System and method for applying an electric field to a flame with a current gated electrode
    Patent number: 10281141
    Abstract: A system and method for electrically controlling a position of a combustion reaction and/or for protecting a flame controller by decoupling an ionizer from a power supply.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: May 7, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Igor A. Krichtafovitch, Christopher A. Wiklof
  • METHOD FOR ELECTRICALLY CONTROLLED COMBUSTION FLUID FLOW
    Publication number: 20190113224
    Abstract: A combustion fluid flow barrier includes an aperture to control combustion fluid flow. The combustion fluid is charged by a charge generator. The combustion fluid flow barrier includes at least one flow control electrode operatively coupled to the aperture and configured to selectively allow, attract, or resist passage of the charged combustion fluid through the aperture, depending on voltage applied to the flow control electrode.
    Type: Application
    Filed: December 12, 2018
    Publication date: April 18, 2019
    Inventors: DOUGLAS W. KARKOW, CHRISTOPHER A. WIKLOF
  • BURNER SYSTEM WITH DISCRETE TRANSVERSE FLAME STABILIZERS
    Publication number: 20190107331
    Abstract: A combustion system includes a fuel and oxidant source and a flame holder. The flame holder includes a plurality of discrete slats arranged in parallel defining combustion channels between adjacent slats. The fuel and oxidant source outputs fuel and oxidant into the combustion channels. The flame holder holds a combustion reaction of the fuel and oxidant in the combustion channels.
    Type: Application
    Filed: October 22, 2018
    Publication date: April 11, 2019
    Inventors: DONALD KENDRICK, JAMES K. DANSIE, DOUGLAS W. KARKOW, CHRISTOPHER A. WIKLOF
  • FLAME VISUALIZATION CONTROL FOR A BURNER INCLUDING A PERFORATED FLAME HOLDER
    Publication number: 20190093886
    Abstract: A combustion system includes a perforated flame holder, a camera, and a control circuit. The perforated flame holder sustains a combustion reaction within the perforated flame holder. The image capture device takes a plurality of images of the combustion reaction. The control circuit produces from the images an averaged image and adjusts the combustion reaction based on the adjusted image.
    Type: Application
    Filed: November 29, 2018
    Publication date: March 28, 2019
    Inventors: JOSEPH COLANNINO, DOUGLAS W. KARKOW, ROBERT GEIGER, CHRISTOPHER A. WIKLOF
  • Combustion system with flame location actuation
    Patent number: 10240788
    Abstract: A combustion system includes an electrically actuated flame location control mechanism.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: March 26, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Douglas W. Karkow, Joseph Colannino, Igor A. Krichtafovitch, Robert E. Breidenthal, Christopher A. Wiklof
  • HIGH OUTPUT POROUS TILE BURNER
    Publication number: 20190049107
    Abstract: A method of operation of a burner system includes introducing a fuel stream into a perforated flame holder, combusting the fuel stream, with a majority of the combustion occurring between an input face and an output face of the flame holder, and producing a heat output from the combustion of at least 1.5 kBTU/H/in2.
    Type: Application
    Filed: October 15, 2018
    Publication date: February 14, 2019
    Inventors: JOSEPH COLANNINO, DOUGLAS W. KARKOW, CHRISTOPHER A. WIKLOF
  • Electrically controlled combustion fluid flow
    Patent number: 10190767
    Abstract: A combustion fluid flow barrier includes an aperture to control combustion fluid flow. The combustion fluid is charged by a charge generator. The combustion fluid flow barrier includes at least one flow control electrode operatively coupled to the aperture and configured to selectively allow, attract, or resist passage of the charged combustion fluid through the aperture, depending on voltage applied to the flow control electrode.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: January 29, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Douglas W. Karkow, Christopher A. Wiklof
  • BURNER SYSTEM INCLUDING A NON-PLANAR PERFORATED FLAME HOLDER
    Publication number: 20190024887
    Abstract: A combustion system such as a furnace or boiler includes a non-planar perforated flame holder configured to hold a combustion reaction.
    Type: Application
    Filed: September 20, 2018
    Publication date: January 24, 2019
    Inventors: JOSEPH COLANNINO, DOUGLAS W. KARKOW, JAMES K. DANSIE, CHRISTOPHER A. WIKLOF
  • PERFORATED FLAME HOLDER WITH GAPS BETWEEN TILE GROUPS
    Publication number: 20190011123
    Abstract: A combustion system includes a fuel and oxidant source that outputs fuel and oxidant, a first perforated flame holder, and a second perforated flame holder separated from the first perforated flame holder by a gap. The first and second perforated flame holders sustain a combustion reaction of the fuel and oxidant within the first and second perforated flame holders.
    Type: Application
    Filed: July 12, 2018
    Publication date: January 10, 2019
    Inventors: JAMES K. DANSIE, DOUGLAS W. KARKOW, JESSE DUMAS, DONALD KENDRICK, SUNNY KARNANI, CHRISTOPHER A. WIKLOF
  • RADIANT WALL BURNER INCLUDING PERFORATED FLAME HOLDERS
    Publication number: 20190011124
    Abstract: A cracking furnace includes a combustion volume defined in part by a burner wall having a refractory lining. A plurality of perforated flame holders is arranged in an array that is spaced away from the wall, with fuel input faces facing the wall. Each of a plurality of fuel nozzles is positioned and configured to emit a fuel stream toward the input face of a respective one of the plurality of perforated flame holders. Combustion reactions, supported by the fuel streams emitted by the fuel nozzles, and held by the flame holders, release heat, which is emitted by the flame holders as thermal (blackbody) radiation, a portion of which impinges upon, and heats the inner face of the refractory lining. Thermal radiation from the flame holders and the wall impinges upon a load positioned in the approximate center of the combustion volume, between burner walls.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 10, 2019
    Inventors: JOSEPH COLANNINO, DOUGLAS W. KARKOW, CHRISTOPHER A. WIKLOF
  • STARTUP METHOD AND MECHANISM FOR A BURNER HAVING A PERFORATED FLAME HOLDER
    Publication number: 20190003705
    Abstract: According to an embodiment, a combustion system is provided, which includes a nozzle configured to emit a diverging fuel flow, a flame holder positioned in the path of the fuel flow and that includes a plurality of apertures extending therethrough, and a preheat mechanism configured to heat the flame to a temperature exceeding a startup temperature threshold.
    Type: Application
    Filed: August 20, 2018
    Publication date: January 3, 2019
    Inventors: DOUGLAS W. KARKOW, JOSEPH COLANNINO, IGOR A. KRICHTAFOVITCH, CHRISTOPHER A. WIKLOF
  • COMBUSTION SYSTEM WITH FLAME LOCATION ACTUATION
    Publication number: 20180372314
    Abstract: A combustion system includes an electrically actuated flame location control mechanism.
    Type: Application
    Filed: August 17, 2018
    Publication date: December 27, 2018
    Inventors: DOUGLAS W. KARKOW, JOSEPH COLANNINO, IGOR A. KRICHTAFOVITCH, ROBERT E. BREIDENTHAL, CHRISTOPHER A. WIKLOF
  • Combustor having a nonmetallic body with external electrodes
    Patent number: 10161625
    Abstract: A combustor may include a nonmetallic combustor body configured to hold a combustion reaction. The combustor may include and one or more electrodes disposed outside the nonmetallic combustor body and configured to apply electrical energy to the combustion reaction. The combustor may include a power supply operatively coupled to the one or more electrodes.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: December 25, 2018
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Igor A. Krichtafovitch, Joseph Colannino, Robert E. Breidenthal, David B. Goodson, Christopher A. Wiklof