Patents by Inventor James William Bray

James William Bray 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: 10381889
    Abstract: A permanent magnet machine and a rotor assembly for the permanent magnet machine. The permanent magnet machine includes a stator assembly including a stator core configured to generate a magnetic field and extending along a longitudinal axis with an inner surface defining a cavity and a rotor assembly including a rotor core and a rotor shaft. The rotor core is disposed inside the stator cavity and configured to rotate about the longitudinal axis. The rotor assembly further including a plurality of permanent magnets for generating a magnetic field which interacts with the stator magnetic field to produce torque. The permanent magnets are disposed within one or more cavities formed in a sleeve component. The sleeve component configured to include a plurality of cavities or voids therein and thus provide minimal weight to the permanent magnet machine. The permanent magnet machine providing increased centrifugal load capacity, increased power density and improved electrical performance.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: August 13, 2019
    Assignee: General Electric Company
    Inventors: Narendra Digamber Joshi, Manoj Ramprasad Shah, James William Bray, Randy Marinus Vondrell, Kurt David Murrow, Jeffrey Anthony Hamel, Samuel Jacob Martin
  • Patent number: 10096999
    Abstract: A var compensator circuit is provided. The var compensator circuit includes a gas tube switch and a reactive impedance. The gas tube switch is configured to be coupled to a transmission line. The transmission line is configured to deliver real power and reactive power to a load at an alternating current (AC) line voltage. The reactive impedance is configured to be coupled to the transmission line at the AC line voltage through the gas tube switch. The reactive impedance is configured to modify the reactive power configured to be delivered to the load.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: October 9, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Xu She, James William Bray, Timothy John Sommerer, Rahul Shantilal Chokhawala
  • Patent number: 9973092
    Abstract: A direct current (DC)-DC converter includes a transformer and a gas tube-switched inverter circuit. The transformer includes a primary winding and a secondary winding. The gas tube-switched inverter circuit includes first and second inverter load terminals and first and second inverter input terminals. The first and second inverter load terminals are coupled to the primary winding. The first and second inverter input terminals are couplable to a DC node. The gas tube-switched inverter circuit further includes a plurality of gas tube switches respectively coupled between the first and second inverter load terminals and the first and second inverter input terminals. The plurality of gas tube switches is configured to operate to generate an alternating current (AC) voltage at the primary winding.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: May 15, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Xu She, James William Bray, Timothy John Sommerer, Rahul Chokhawala
  • Publication number: 20180006461
    Abstract: A var compensator circuit is provided. The var compensator circuit includes a gas tube switch and a reactive impedance. The gas tube switch is configured to be coupled to a transmission line. The transmission line is configured to deliver real power and reactive power to a load at an alternating current (AC) line voltage. The reactive impedance is configured to be coupled to the transmission line at the AC line voltage through the gas tube switch. The reactive impedance is configured to modify the reactive power configured to be delivered to the load.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 4, 2018
    Inventors: Xu She, James William Bray, Timothy John Sommerer, Rahul Shantilal Chokhawala
  • Publication number: 20170310220
    Abstract: A direct current (DC)-DC converter includes a transformer and a gas tube-switched inverter circuit. The transformer includes a primary winding and a secondary winding. The gas tube-switched inverter circuit includes first and second inverter load terminals and first and second inverter input terminals. The first and second inverter load terminals are coupled to the primary winding. The first and second inverter input terminals are couplable to a DC node. The gas tube-switched inverter circuit further includes a plurality of gas tube switches respectively coupled between the first and second inverter load terminals and the first and second inverter input terminals. The plurality of gas tube switches is configured to operate to generate an alternating current (AC) voltage at the primary winding.
    Type: Application
    Filed: April 22, 2016
    Publication date: October 26, 2017
    Inventors: Xu She, James William Bray, Timothy John Sommerer, Rahul Chokhawala
  • Patent number: 9748857
    Abstract: A high-voltage direct-current (HVDC) transmission system includes an alternating current (AC) electrical source and a power converter channel that includes an AC-DC converter electrically coupled to the electrical source and a DC-AC inverter electrically coupled to the AC-DC converter. The AC-DC converter and the DC-AC inverter each include a plurality of legs that includes at least one switching device. The power converter channel further includes a commutating circuit communicatively coupled to one or more switching devices. The commutating circuit is configured to “switch on” one of the switching devices during a first portion of a cycle of the H-bridge switching circuits and “switch off” the switching device during a second portion of the cycle of the first and second H-bridge switching circuits.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: August 29, 2017
    Assignee: General Electric Company
    Inventors: Xu She, Rahul Shantilal Chokhawala, James William Bray, Timothy John Sommerer, Rui Zhou, Di Zhang
  • Patent number: 9651032
    Abstract: A submersible liquid-vapor generator (LVG) includes an evaporator portion in heat transfer communication with a heat energy source. The LVG also includes a magnetic field apparatus coupled in flow communication with the evaporator portion. The LVG further includes a condenser portion coupled in flow communication with the magnetic field apparatus. The LVG also includes a hybrid working fluid including nanoparticles. The evaporator portion, the magnetic field portion, and the condenser portion at least partially define a hybrid working vapor flow path. The LVG further includes an electrically non-conductive wick structure coupled in flow communication with the evaporator portion and the condenser portion. The wick structure at least partially defines a hybrid working liquid flow path extending between the condenser portion and the evaporator portion.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: May 16, 2017
    Assignee: General Electric Company
    Inventors: Stanton Earl Weaver, James William Bray, Michael John Bowman
  • Publication number: 20170047857
    Abstract: A high-voltage direct-current (HVDC) transmission system includes an alternating current (AC) electrical source and a power converter channel that includes an AC-DC converter electrically coupled to the electrical source and a DC-AC inverter electrically coupled to the AC-DC converter. The AC-DC converter and the DC-AC inverter each include a plurality of legs that includes at least one switching device. The power converter channel further includes a commutating circuit communicatively coupled to one or more switching devices. The commutating circuit is configured to “switch on” one of the switching devices during a first portion of a cycle of the H-bridge switching circuits and “switch off” the switching device during a second portion of the cycle of the first and second H-bridge switching circuits.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 16, 2017
    Inventors: Xu She, Rahul Shantilal Chokhawala, James William Bray, Timothy John Sommerer, Rui Zhou, Di Zhang
  • Patent number: 9520801
    Abstract: A voltage source converter based high-voltage direct-current (HVDC) transmission system includes a voltage source converter (VSC)-based power converter channel. The VSC-based power converter channel includes an AC-DC converter and a DC-AC inverter electrically coupled to the AC-DC converter. The AC-DC converter and a DC-AC inverter include at least one gas tube switching device coupled in electrical anti-parallel with a respective gas tube diode. The VSC-based power converter channel includes a commutating circuit communicatively coupled to one or more of the at least one gas tube switching devices. The commutating circuit is configured to “switch on” a respective one of the one or more gas tube switching devices during a first portion of an operational cycle and “switch off” the respective one of the one or more gas tube switching devices during a second portion of the operational cycle.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: December 13, 2016
    Assignee: General Electric Company
    Inventors: Xu She, Rahul Shantilal Chokhawala, Rui Zhou, Di Zhang, Timothy John Sommerer, James William Bray
  • Publication number: 20160160845
    Abstract: A submersible liquid-vapor generator (LVG) includes an evaporator portion in heat transfer communication with a heat energy source. The LVG also includes a magnetic field apparatus coupled in flow communication with the evaporator portion. The LVG further includes a condenser portion coupled in flow communication with the magnetic field apparatus. The LVG also includes a hybrid working fluid including nanoparticles. The evaporator portion, the magnetic field portion, and the condenser portion at least partially define a hybrid working vapor flow path. The LVG further includes an electrically non-conductive wick structure coupled in flow communication with the evaporator portion and the condenser portion. The wick structure at least partially defines a hybrid working liquid flow path extending between the condenser portion and the evaporator portion.
    Type: Application
    Filed: December 9, 2014
    Publication date: June 9, 2016
    Inventors: Stanton Earl Weaver, James William Bray, Michael John Bowman
  • Patent number: 9312063
    Abstract: A contactless power transfer system is provided. The system includes a first coil configured to produce a magnetic field. The system also includes a second coil configured to receive power from the first coil via the magnetic field. The system further includes a field focusing element. The field focusing element includes a plurality of resonators arranged in an array. Each of the plurality of resonators, upon excitation, interfere constructively in a direction of the second coil and interfere destructively in a remaining space to focus the magnetic field onto the second coil and enhance the coupling between the first coil and the second coil.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: April 12, 2016
    Assignee: General Electric Company
    Inventors: Adnan Kutubuddin Bohori, James William Bray, Somakumar Ramachandrapanicker, Suma Memana Narayana Bhat
  • Patent number: 9287485
    Abstract: Method for joining wires using low resistivity joints is provided. More specifically, methods of joining one or more wires having superconductive filaments, such as magnesium diboride filaments, are provided. The wires are joined by a low resistivity joint to form wires of a desired length for applications, such in medical imaging applications.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: March 15, 2016
    Assignee: General Electric Company
    Inventors: Judson Sloan Marte, Xianrui Huang, Evangelos Trifon Laskaris, Bruce Alan Knudsen, Thomas Robert Raber, Robert John Zabala, James William Bray, Paul Shadforth Thompson, Sergio Paulo Martins Loureiro, Curtis Alan Johnson, Sylvia Marie Decarr
  • Patent number: 9244049
    Abstract: A system for measuring nutritional parameters of food items is provided. The system includes a holding cavity. The system further includes a sensor assembly that includes a transmitter antenna and at least one receiver antenna. The transmitter antenna is configured to transmit signals to a food item in the holding cavity. The receiver antenna is configured to receive response signals from the food item. The system includes at least one switch coupled to each antenna. The switch, in a first state, is configured to set the sensor assembly to an electric potential equal to that of the holding cavity. In a second state, the switch is configured to couple the sensor assembly to a power source. The system also includes a processing unit to process the signals received to determine the nutritional parameters of the food item.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: January 26, 2016
    Assignee: General Electric Company
    Inventors: Yongjae Lee, Aghogho Atemu Obi, Seog Tae Kim, William Chester Platt, James William Bray, Yuri Alexeyevich Plotnikov, Jack Mathew Webster, Vasile Bogdan Neculaes
  • Publication number: 20150380999
    Abstract: A permanent magnet machine and a rotor assembly for the permanent magnet machine. The permanent magnet machine includes a stator assembly including a stator core configured to generate a magnetic field and extending along a longitudinal axis with an inner surface defining a cavity and a rotor assembly including a rotor core and a rotor shaft. The rotor core is disposed inside the stator cavity and configured to rotate about the longitudinal axis. The rotor assembly further including a plurality of permanent magnets for generating a magnetic field which interacts with the stator magnetic field to produce torque. The permanent magnets are disposed within one or more cavities formed in a sleeve component. The sleeve component configured to include a plurality of cavities or voids therein and thus provide minimal weight to the permanent magnet machine. The permanent magnet machine providing increased centrifugal load capacity, increased power density and improved electrical performance.
    Type: Application
    Filed: June 27, 2014
    Publication date: December 31, 2015
    Inventors: Narendra Digamber Joshi, Manoj Ramprasad Shah, James William Bray, Randy Marinus Vondrell, Kurt David Murrow, Jeffrey Anthony Hamel, Samuel Jacob Martin
  • Publication number: 20140331796
    Abstract: A system for measuring nutritional parameters of food items is provided. The system includes a holding cavity. The system further includes a sensor assembly that includes a transmitter antenna and at least one receiver antenna. The transmitter antenna is configured to transmit signals to a food item in the holding cavity. The receiver antenna is configured to receive response signals from the food item. The system includes at least one switch coupled to each antenna. The switch, in a first state, is configured to set the sensor assembly to an electric potential equal to that of the holding cavity. In a second state, the switch is configured to couple the sensor assembly to a power source. The system also includes a processing unit to process the signals received to determine the nutritional parameters of the food item.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 13, 2014
    Applicant: General Electric Company
    Inventors: Yongjae Lee, Aghogho Atemu Obi, Seog Tae Kim, William Chester Platt, James William Bray, Yuri Alexeyevich Plotnikov, Jack Mathew Webster, Vasile Bogdan Neculaes
  • Publication number: 20140139041
    Abstract: A contactless power transfer system is provided. The system includes a first coil configured to produce a magnetic field. The system also includes a second coil configured to receive power from the first coil via the magnetic field. The system further includes a field focusing element. The field focusing element includes a plurality of resonators arranged in an array. Each of the plurality of resonators, upon excitation, interfere constructively in a direction of the second coil and interfere destructively in a remaining space to focus the magnetic field onto the second coil and enhance the coupling between the first coil and the second coil.
    Type: Application
    Filed: January 28, 2014
    Publication date: May 22, 2014
    Applicant: General Electric Company
    Inventors: Adnan Kutubuddin Bohori, James William Bray, Somakumar Ramachandrapanicker, Suma Memana Narayana Bhat
  • Patent number: 8671552
    Abstract: An electrical machine includes a stator and a rotor. The stator has a central opening that is configured to receive the rotor. The rotor includes a generally cylindrical first section comprising a first material mounted on an axially extending shaft within the central opening. The rotor further includes a second section having a second material of a predetermined thickness that is coated directly on at least a portion of the first section. The second material has a higher electrical conductivity relative to the first material.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: March 18, 2014
    Assignee: General Electric Company
    Inventors: James William Bray, Kiruba Sivasubramaniam, Manoj Ramprasad Shah
  • Patent number: 8674550
    Abstract: A contactless power transfer system is proposed. The system includes a first coil coupled to a power source and configured to produce a magnetic field. A second coil is configured to receive power from the first coil via the magnetic field. A field focusing element is disposed between the first coil and the second coil and configured as a self resonant coil having a standing wave current distribution. The field focusing element is further configured to focus the magnetic field onto the second coil and enhance the coupling between the first coil and the second coil.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: March 18, 2014
    Assignee: General Electric Company
    Inventors: Adnan Kutubuddin Bohori, James William Bray, Somakumar Ramachandrapanicker, Suma Memana Narayana Bhat
  • Publication number: 20130255281
    Abstract: A cooling system is provided for cooling an electrical component. The cooling system includes a supply of liquid natural gas (LNG) and a heat sink configured to be positioned in thermal communication with the electrical component. The cooling system also includes an LNG conduit configured to be interconnected between the heat sink and the supply of LNG such that the LNG conduit is configured to carry LNG from the supply to the heat sink. A pump is configured to be operatively connected in fluid communication with the supply of LNG. The pump is configured to move LNG within the LNG conduit from the supply to the heat sink.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 3, 2013
    Applicant: General Electric Company
    Inventor: James William Bray
  • Publication number: 20130104985
    Abstract: A photovoltaic device includes an absorber layer comprising a material comprising cadmium and tellurium. The photovoltaic device further includes a p+-type semiconductor layer and an interlayer interposed between the absorber layer and the p+-type semiconductor layer. The interlayer comprises manganese. The photovoltaic device may be manufactured as a substrate-based device or as a superstrate base device.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 2, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Bastiaan Arie Korevaar, James William Bray