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).
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Patent number: 7845848Abstract: 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: GrantFiled: July 13, 2009Date of Patent: December 7, 2010Assignee: FieldMetrics, Inc.Inventors: Christopher Yakymyshyn, Michael Allen Brubaker, Pamela Jane Hamilton
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Patent number: 7845847Abstract: 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: GrantFiled: July 13, 2009Date of Patent: December 7, 2010Assignee: FieldMetrics, Inc.Inventors: Christopher Yakymyshyn, Michael Allen Brubaker, Pamela Jane Hamilton
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Publication number: 20090279582Abstract: 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: ApplicationFiled: July 13, 2009Publication date: November 12, 2009Inventors: Christopher Yakymyshyn, Michael Allen Brubaker, Pamela Jane Hamilton
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Publication number: 20090279581Abstract: 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: ApplicationFiled: July 13, 2009Publication date: November 12, 2009Inventors: Christopher Yakymyshyn, Michael Allen Brubaker, Pamela Jane Hamilton
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Patent number: 7575371Abstract: 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: GrantFiled: November 10, 2005Date of Patent: August 18, 2009Assignee: FieldMetrics, IncInventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Hamilton
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Patent number: 7321226Abstract: 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: GrantFiled: November 6, 2006Date of Patent: January 22, 2008Assignee: FieldMetrics, IncInventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
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Patent number: 7304872Abstract: 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: GrantFiled: September 23, 2005Date of Patent: December 4, 2007Assignee: Field Metrics, Inc.Inventors: Christopher Paul Yakymyshyn, Pamela Jane Hamilton, Michael Allen Brubaker
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Patent number: 7279884Abstract: 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: GrantFiled: November 6, 2006Date of Patent: October 9, 2007Assignee: Field Metrics, IncInventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
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Patent number: 7279885Abstract: 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: GrantFiled: November 6, 2006Date of Patent: October 9, 2007Assignee: Field Metrics, IncInventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
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Patent number: 7274186Abstract: 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: GrantFiled: November 6, 2006Date of Patent: September 25, 2007Assignee: FieldMetrics, IncInventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
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Patent number: 7164263Abstract: 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: GrantFiled: January 7, 2005Date of Patent: January 16, 2007Assignee: FieldMetrics, Inc.Inventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
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Patent number: 7129693Abstract: 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: GrantFiled: July 17, 2005Date of Patent: October 31, 2006Assignee: FieldMetrics, Inc.Inventors: Christopher Paul Yakymyshyn, Michael Allen Brubaker, Pamela Jane Yakymyshyn
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Patent number: 7123032Abstract: 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: GrantFiled: December 3, 2004Date of Patent: October 17, 2006Assignee: FieldMetrics, Inc.Inventors: Christopher Paul Yakymyshyn, Pamela Jane Yakymyshyn, Michael Allen Brubaker
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Patent number: 7027285Abstract: 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: GrantFiled: December 29, 2004Date of Patent: April 11, 2006Assignee: Field Metrics, Inc.Inventors: Michael Allen Brubaker, Terry Alan Hosking