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).

  • Horizontally fired burner with a perforated flame holder
    Patent number: 10458649
    Abstract: A horizontally-fired flame burner includes a flame holder positioned laterally from the burner. The flame holder includes a plurality of perforations that collectively confine a combustion reaction of the burner to the flame holder.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: October 29, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Douglas W. Karkow, Joseph Colannino, Igor A. Krichtafovitch, Christopher A. Wiklof
  • Adaptor for providing electrical combustion control to a burner
    Patent number: 10458647
    Abstract: Technologies are provided for an adaptor for introducing electricity into a combustion chamber, for the purpose of electrical flame or combustion control. The adaptor may be placed between a conventional burner assembly and a conventional combustion chamber wall. The adaptor includes an aperture for admitting electricity into the combustion chamber.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: October 29, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Christopher A. Wiklof, Nicholas S. Bromer
  • Ionizer for a combustion system
    Patent number: 10422523
    Abstract: A combustion system includes an ionizer configured to eject charges (or accept charges) for uptake by a combustion reaction to cause a combustion reaction to carry a majority charge or voltage. The ionizer includes an inner electrode, a dielectric body surrounding the inner electrode, and one or more conductive or semi-conductive inner electrodes disposed on the surface of the dielectric body. The inner and outer electrodes are configured to be in a capacitive relationship.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: September 24, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventor: Christopher A. Wiklof
  • Method for operating a combustion system including a perforated flame holder
    Patent number: 10386062
    Abstract: A method for operating a combustion system includes outputting fuel and oxidant from a fuel and oxidant source onto a perforated flame holder. The method further includes sustaining a combustion reaction of the fuel and oxidant within the perforated flame holder.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: August 20, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Douglas W. Karkow, Joseph Colannino, Christopher A. Wiklof
  • Burner system including at least one coanda surface and electrodynamic control system, and related methods
    Patent number: 10364984
    Abstract: Embodiments of the invention are directed to a burner system including at least one Coanda surface and at least two electrodes that are biased in a manner to influences a location of fuel flow relative to the at least one Coanda surface and related methods. In an embodiment, a burner system includes at least one Coanda surface, at least one nozzle positioned and configured to emit a fuel flow at least proximate to the at least one Coanda surface, at least two electrodes, and a voltage source operably coupled to the at least two electrodes. The voltage source may be configured to bias the at least two electrodes to generate an electric field at least proximate to the at least one Coanda surface that influences a location of the fuel flow and/or a flame relative to the at least one Coanda surface.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: July 30, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Joseph Colannino, Igor Alexeevitch Krichtafovitch, Christopher A. Wiklof
  • Control of combustion reaction physical extent
    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
  • Electrodynamic combustion control with current limiting electrical element
    Patent number: 10359189
    Abstract: An charge element disposed proximate to a combustion reaction is caused to carry a voltage while also being prevented from arc-discharging or arc-charging to or from the combustion reaction, by a current limiting element in electrical continuity with the charge element.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: July 23, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Igor A. Krichtafovitch, Christopher A. Wiklof
  • Method for low NOx fire tube boiler
    Patent number: 10359213
    Abstract: A fire tube boiler includes a perforated flame holder configured to hold a combustion reaction that produces very low oxides of nitrogen (NOx).
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: July 23, 2019
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Douglas W. Karkow, Joseph Colannino, Igor A. Krichtafovitch, Robert E. Breidenthal, Christopher A. Wiklof
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Flame visualization control for a burner including a perforated flame holder
    Patent number: 10156356
    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: Grant
    Filed: April 19, 2016
    Date of Patent: December 18, 2018
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Joseph Colannino, Douglas W. Karkow, Robert Geiger, Christopher A. Wiklof
  • Fluid heater with perforated flame holder, and method of operation
    Patent number: 10139131
    Abstract: A water heater includes a water tank having an inlet and an outlet, and a flue extending through the tank. A nozzle is positioned near a first end of the flue, arranged so as to emit a fuel stream into the flue, and a flame holder is located within the flue in a position to receive the fuel stream and to hold a flame entirely within the flue.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: November 27, 2018
    Assignee: CLEARSIGN COMBUSTION CORPORATION
    Inventors: Douglas W. Karkow, Joseph Colannino, Christopher A. Wiklof