Patents by Inventor Michael Allen Brubaker

Michael Allen Brubaker 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).

  • Temperature sensor and extensometer for electrical power cables
    Patent number: 7845848
    Abstract: A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature of the conductor in a buried, undersea or submerged electrical power cable.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: December 7, 2010
    Assignee: FieldMetrics, Inc.
    Inventors: Christopher Yakymyshyn, Michael Allen Brubaker, Pamela Jane Hamilton
  • Temperature sensor and extensometer for electrical power cables
    Patent number: 7845847
    Abstract: A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature of the windings in a transformer or other electrical apparatus.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: December 7, 2010
    Assignee: FieldMetrics, Inc.
    Inventors: Christopher Yakymyshyn, Michael Allen Brubaker, Pamela Jane Hamilton
  • Temperature Sensor and Extensometer for Electrical Power Cables
    Publication number: 20090279582
    Abstract: A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature of the conductor in a buried, undersea or submerged electrical power cable.
    Type: Application
    Filed: July 13, 2009
    Publication date: November 12, 2009
    Inventors: Christopher Yakymyshyn, Michael Allen Brubaker, Pamela Jane Hamilton
  • Temperature Sensor and Extensometer for Electrical Power Cables
    Publication number: 20090279581
    Abstract: A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature of the windings in a transformer or other electrical apparatus.
    Type: Application
    Filed: July 13, 2009
    Publication date: November 12, 2009
    Inventors: Christopher Yakymyshyn, Michael Allen Brubaker, Pamela Jane Hamilton
  • Temperature sensor and extensometer
    Patent number: 7575371
    Abstract: A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature and sag of an overhead power line, the temperature of the windings in a transformer, or the temperature of the central conductor in a coaxial power cable.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: August 18, 2009
    Assignee: FieldMetrics, Inc
    Inventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Hamilton
  • Temperature compensated and self-calibrated current sensor using reference current
    Patent number: 7321226
    Abstract: A method is described to provide temperature compensation and self-calibration of a current sensor based on a plurality of magnetic field sensors positioned around a current carrying conductor. A reference electrical current carried by a conductor positioned within the sensing window of the current sensor is used to correct variations in the output signal due to temperature variations and aging.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: January 22, 2008
    Assignee: FieldMetrics, Inc
    Inventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
  • Power supply
    Patent number: 7304872
    Abstract: A modular, low weight impedance dropping power supply with battery backup is disclosed that can be connected to a high voltage AC source and provide electrical power at a lower voltage. The design can be scaled over a wide range of input voltages and over a wide range of output voltages and delivered power.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: December 4, 2007
    Assignee: Field Metrics, Inc.
    Inventors: Christopher Paul Yakymyshyn, Pamela Jane Hamilton, Michael Allen Brubaker
  • Temperature compensated and self-calibrated current sensor using reference magnetic field
    Patent number: 7279884
    Abstract: A method is described to provide temperature compensation and self-calibration of a current sensor based on a plurality of magnetic field sensors positioned around a current carrying conductor. A reference magnetic field generated within the current sensor housing is detected by the magnetic field sensors and is used to correct variations in the output signal due to temperature variations and aging.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: October 9, 2007
    Assignee: Field Metrics, Inc
    Inventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
  • Temperature compensated current sensor using reference magnetic field
    Patent number: 7279885
    Abstract: A method is described to provide temperature compensation and self-calibration of a current sensor based on a plurality of magnetic field sensors positioned around a current carrying conductor. A reference magnetic field generated within the current sensor housing is detected by a separate but identical magnetic field sensor and is used to correct variations in the output signal due to temperature variations and aging.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: October 9, 2007
    Assignee: Field Metrics, Inc
    Inventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
  • Temperature compensated and self-calibrated current sensor
    Patent number: 7274186
    Abstract: A method is described to provide temperature compensation and reduction of drift due to aging for a current sensor based on a plurality of magnetic field sensors positioned around a current carrying conductor. The offset voltage signal generated by each magnetic field sensor is used to correct variations in the output signal due to temperature variations and aging.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: September 25, 2007
    Assignee: FieldMetrics, Inc
    Inventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
  • Current sensor
    Patent number: 7164263
    Abstract: A current sensor is described that uses a plurality of magnetic field sensors positioned around a current carrying conductor. The sensor can be hinged to allow clamping to a conductor. The current sensor provides high measurement accuracy for both DC and AC currents, and is substantially immune to the effects of temperature, conductor position, nearby current carrying conductors and aging.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: January 16, 2007
    Assignee: FieldMetrics, Inc.
    Inventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
  • Modular voltage sensor
    Patent number: 7129693
    Abstract: A voltage sensor is described that consists of a plurality of identical series-connected sections, where each section is comprised of an arrangement of impedance elements. The sensor is optimized to provide an output ratio that is substantially immune to changes in voltage, temperature variations or aging. The voltage sensor can be scaled to various voltage levels by varying the number of series-connected sections.
    Type: Grant
    Filed: July 17, 2005
    Date of Patent: October 31, 2006
    Assignee: FieldMetrics, Inc.
    Inventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
  • Voltage sensor and dielectric material
    Patent number: 7123032
    Abstract: A voltage sensor is described that consists of an arrangement of impedance elements. The sensor is optimized to provide an output ratio that is substantially immune to changes in voltage, temperature variations or aging. Also disclosed is a material with a large and stable dielectric constant. The dielectric constant can be tailored to vary with position or direction in the material.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: October 17, 2006
    Assignee: FieldMetrics, Inc.
    Inventors: Christopher Paul Yakymyshyn, Pamela Jane Yakymyshyn, Michael Allen Brubaker
  • Vented Capacitor
    Patent number: 7027285
    Abstract: A technique of increasing the corona inception voltage (CIV), and thereby increasing the operating voltage, of film/foil capacitors is described. Intentional venting of the capacitor encapsulation improves the corona inception voltage by allowing internal voids to equilibrate with the ambient environment.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: April 11, 2006
    Assignee: Field Metrics, Inc.
    Inventors: Michael Allen Brubaker, Terry Alan Hosking