Patents by Inventor David Mulford Shaddock
David Mulford Shaddock 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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Publication number: 20230020337Abstract: An electrical component and method for manufacturing the electrical component with a substrate a conductor stack having multiple layers and including at least one electrically conductive path. The conductor stack mounted to the substrate with a dielectric passivation stack encasing at least a portion of the conductor stack.Type: ApplicationFiled: September 21, 2022Publication date: January 19, 2023Inventors: Cheng-Po Chen, Reza Ghandi, David Richard Esler, David Mulford Shaddock, Emad Andarawis Andarawis, Liang Yin
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Patent number: 11482449Abstract: An electrical component and method for manufacturing the electrical component with a substrate a conductor stack having multiple layers and including at least one electrically conductive path. The conductor stack mounted to the substrate with a dielectric passivation stack encasing at least a portion of the conductor stack.Type: GrantFiled: August 3, 2020Date of Patent: October 25, 2022Assignee: General Electric CompanyInventors: Cheng-Po Chen, Reza Ghandi, David Richard Esler, David Mulford Shaddock, Emad Andarawis Andarawis, Liang Yin
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Publication number: 20220037201Abstract: An electrical component and method for manufacturing the electrical component with a substrate a conductor stack having multiple layers and including at least one electrically conductive path. The conductor stack mounted to the substrate with a dielectric passivation stack encasing at least a portion of the conductor stack.Type: ApplicationFiled: August 3, 2020Publication date: February 3, 2022Inventors: Cheng-Po Chen, Reza Ghandi, David Richard Esler, David Mulford Shaddock, Emad Andarawis Andarawis, Liang Yin
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Publication number: 20210102870Abstract: An insertion apparatus for use with a rotary machine includes a body extending from an insertion end to a steering end and sized to fit within an annular cavity. The body has a first stiffness and curves along a circumference of the annular cavity as the insertion end travels through the annular cavity. The insertion apparatus also includes a stiffener coupled to the body and extending from the steering end to the insertion end. The stiffener has a second stiffness greater than the first stiffness. The insertion apparatus further includes at least one maintenance device coupled to the insertion end of the insertion apparatus and a displacement mechanism configured to adjust a position of the at least one maintenance device relative to the body.Type: ApplicationFiled: November 26, 2019Publication date: April 8, 2021Inventors: Deepak Trivedi, Grover Andrew Bennett, JR., Sandeep Kumar, Manoj Kumar Koyithitta Meethal, David Mulford Shaddock, Andrew Crispin Graham, Stephen Paul Leclerc, JR.
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Patent number: 10260500Abstract: A downhole dynamometer for a rod pumping unit is provided. The downhole dynamometer includes a shell within which a plurality of sensors, a non-transitory memory, and a dynamometer controller are located. The shell is configured to be coupled to a sucker rod string of the rod pumping unit and disposed in a well opposite a wellhead of the well. The plurality of sensors is configured to measure downhole accelerations of the sucker rod string and to measure a downhole load on the sucker rod string. The dynamometer controller is coupled to the plurality of sensors and the non-transitory memory. The dynamometer controller is configured to periodically collect measurements from the plurality of sensors and store the measurements in the non-transitory memory.Type: GrantFiled: May 15, 2017Date of Patent: April 16, 2019Assignee: General Electric CompanyInventors: Xuele Qi, Cheng-Po Chen, Grant Lynn Hartman, Yizhen Lin, David Mulford Shaddock
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Publication number: 20180328357Abstract: A downhole dynamometer for a rod pumping unit is provided. The downhole dynamometer includes a shell within which a plurality of sensors, a non-transitory memory, and a dynamometer controller are located. The shell is configured to be coupled to a sucker rod string of the rod pumping unit and disposed in a well opposite a wellhead of the well. The plurality of sensors is configured to measure downhole accelerations of the sucker rod string and to measure a downhole load on the sucker rod string. The dynamometer controller is coupled to the plurality of sensors and the non-transitory memory. The dynamometer controller is configured to periodically collect measurements from the plurality of sensors and store the measurements in the non-transitory memory.Type: ApplicationFiled: May 15, 2017Publication date: November 15, 2018Inventors: Xuele Qi, Cheng-Po Chen, Grant Lynn Hartman, Yizhen Lin, David Mulford Shaddock
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Patent number: 9947647Abstract: A method of fabricating an overvoltage protection device and an over-voltage circuit protection device are provided. The over-voltage circuit protection device includes a plurality of transient voltage suppression (TVS) devices coupled in electrical parallel.Type: GrantFiled: December 11, 2013Date of Patent: April 17, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Avinash Srikrishnan Kashyap, Peter Micah Sandvik, Mark Gerard Roberto, David Mulford Shaddock, Joe Walter Kirstein
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Patent number: 9252138Abstract: An electronic packaging assembly having a semiconductor integrated circuit and a plurality of interconnect components is provided. The plurality of interconnect components is operatively coupled to the semiconductor integrated circuit. Further, one or more interconnect components include one or more support elements having a first surface and a second surface, and one or more spring elements having a first end and a second end, and wherein first ends of the one or more spring elements are coupled to the first surface or the second surface of a respective support element.Type: GrantFiled: May 27, 2014Date of Patent: February 2, 2016Assignee: General Electric CompanyInventors: Gamal Refai-Ahmed, David Mulford Shaddock, Arun Virupaksha Gowda, John Anthony Vogel, Christian Giovanniello
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Publication number: 20150348952Abstract: An electronic packaging assembly having a semiconductor integrated circuit and a plurality of interconnect components is provided. The plurality of interconnect components is operatively coupled to the semiconductor integrated circuit. Further, one or more interconnect components include one or more support elements having a first surface and a second surface, and one or more spring elements having a first end and a second end, and wherein first ends of the one or more spring elements are coupled to the first surface or the second surface of a respective support element.Type: ApplicationFiled: May 27, 2014Publication date: December 3, 2015Applicant: General Electric CompanyInventors: Gamal Refai-Ahmed, David Mulford Shaddock, Arun Virupaksha Gowda, John Anthony Vogel, Christian Giovanniello
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Patent number: 9130365Abstract: A high temperature electronic system includes an electronics unit configured for exposure to an environment having a temperature greater than approximately 150.0° C. The remote electronics unit includes a transient voltage suppressor (TVS) assembly coupled in operative relationship with at least some electronic components of the electronics unit. The TVS assembly includes at least one TVS device comprising at least one of a punch-through wide band-gap semiconductor TVS die and an avalanche breakdown wide band-gap semiconductor TVS die encapsulated in a flip-chip package at least partially surrounding the die, and coupled to first and second electrodes exposed to a single side of the encapsulation.Type: GrantFiled: September 15, 2014Date of Patent: September 8, 2015Assignee: General Electric CompanyInventors: Avinash Srikrishnan Kashyap, Emad Andarawis Andarawis, David Mulford Shaddock
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Patent number: 9113583Abstract: An apparatus includes a substrate and a plurality of conductive traces formed on the substrate. The conductive traces are doped with a concentration of an aluminum material forming a protective layer as a portion of the plurality of conductive traces to inhibit oxidation. A set of first metal contact pads are formed in contact with the plurality of conductive traces. The substrate, the plurality of conductive traces and the set of first metal contact pads define an electronic circuit board configured to operate at a temperature greater than 200 degrees Celsius. A high operating temperature electronic device is configured in electrical communication with the conductive traces defining an assembly configured to operate at a temperature greater than 200 degrees Celsius.Type: GrantFiled: July 31, 2012Date of Patent: August 18, 2015Assignee: General Electric CompanyInventors: David Mulford Shaddock, Emad Andarawis Andarawis
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Publication number: 20150162743Abstract: A method of fabricating an overvoltage protection device and an over-voltage circuit protection device are provided. The over-voltage circuit protection device includes a plurality of transient voltage suppression (TVS) devices coupled in electrical parallel.Type: ApplicationFiled: December 11, 2013Publication date: June 11, 2015Applicant: General Electric CompanyInventors: Avinash Srikrishnan Kashyap, Peter Micah Sandvik, Mark Gerard Roberto, David Mulford Shaddock, Joe Walter Kirstein
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Publication number: 20150002976Abstract: A high temperature electronic system includes an electronics unit configured for exposure to an environment having a temperature greater than approximately 150.0° C. The remote electronics unit includes a transient voltage suppressor (TVS) assembly coupled in operative relationship with at least some electronic components of the electronics unit. The TVS assembly includes at least one TVS device comprising at least one of a punch-through wide band-gap semiconductor TVS die and an avalanche breakdown wide band-gap semiconductor TVS die encapsulated in a flip-chip package at least partially surrounding the die, and coupled to first and second electrodes exposed to a single side of the encapsulation.Type: ApplicationFiled: September 15, 2014Publication date: January 1, 2015Inventors: Avinash Srikrishnan Kashyap, Emad Andarawis Andarawis, David Mulford Shaddock
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Patent number: 8835976Abstract: A method of forming a silicon carbide transient voltage suppressor (TVS) assembly and a system for a transient voltage suppressor (TVS) assembly are provided. The transient voltage suppressor (TVS) assembly includes a semiconductor die including a contact surface on a single side of the die, the die further including a substrate comprising a layer of at least one of an electrical insulator material, a semi-insulating material, and a first wide band gap semiconductor having a conductivity of a first polarity, at least a TVS device including a plurality of wide band gap semiconductor layers formed on the substrate; a first electrode coupled in electrical contact with the TVS device and extending to the contact surface, and a second electrode electrically coupled to the substrate extending to the contact surface.Type: GrantFiled: March 14, 2012Date of Patent: September 16, 2014Assignee: General Electric CompanyInventors: Avinash Srikrishnan Kashyap, Emad Andarawis Andarawis, David Mulford Shaddock
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Patent number: 8816698Abstract: A diagnostic system for detecting faults in electrical wiring, and manufacturing method thereof is provided. The diagnostic system includes a diagnostic sensor coupled to a data acquisition system. The diagnostic sensor includes a sensor housing with a flexible coil sensor disposed inside. The sensor housing includes a base portion, lid portion, and a joining portion, wherein one end of the lid portion is detachably coupled to a first end of the base portion and another end of the lid portion is coupled to a second end of the base portion via the joining portion. The diagnostic sensor further includes a connector coupled to the flexible coil sensor.Type: GrantFiled: October 28, 2010Date of Patent: August 26, 2014Assignee: General Electric CompanyInventors: Meena Ganesh, David Mulford Shaddock, Selaka Bandara Bulumulla
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Patent number: 8765524Abstract: A method of forming a silicon carbide transient voltage suppressor (TVS) assembly and a system for a transient voltage suppressor (TVS) assembly are provided. The TVS assembly includes a semiconductor die in a mesa structure that includes a first layer of a first wide band gap semiconductor having a conductivity of a first polarity, a second layer of the first or a second wide band gap semiconductor having a conductivity of a second polarity coupled in electrical contact with the first layer wherein the second polarity is different than the first polarity. The TVS assembly also includes a third layer of the first, the second, or a third wide band gap semiconductor having a conductivity of the first polarity coupled in electrical contact with the second layer. The layer having a conductivity of the second polarity is lightly doped relative to the layers having a conductivity of the first polarity.Type: GrantFiled: August 15, 2013Date of Patent: July 1, 2014Assignee: General Electric CompanyInventors: Avinash Srikrishnan Kashyap, David Mulford Shaddock, Emad Andarawis Andarawis, Peter Micah Sandvik, Stephen Daley Arthur, Vinayak Tilak
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Publication number: 20140036463Abstract: An apparatus includes a substrate and a plurality of conductive traces formed on the substrate. The conductive traces are doped with a concentration of an aluminum material forming a protective layer as a portion of the plurality of conductive traces to inhibit oxidation. A set of first metal contact pads are formed in contact with the plurality of conductive traces. The substrate, the plurality of conductive traces and the set of first metal contact pads define an electronic circuit board configured to operate at a temperature greater than 200 degrees Celsius. A high operating temperature electronic device is configured in electrical communication with the conductive traces defining an assembly configured to operate at a temperature greater than 200 degrees Celsius.Type: ApplicationFiled: July 31, 2012Publication date: February 6, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: David Mulford Shaddock, Emad Andarawis Andarawis
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Publication number: 20130328064Abstract: A method of forming a silicon carbide transient voltage suppressor (TVS) assembly and a system for a transient voltage suppressor (TVS) assembly are provided. The TVS assembly includes a semiconductor die in a mesa structure that includes a first layer of a first wide band gap semiconductor having a conductivity of a first polarity, a second layer of the first or a second wide band gap semiconductor having a conductivity of a second polarity coupled in electrical contact with the first layer wherein the second polarity is different than the first polarity. The TVS assembly also includes a third layer of the first, the second, or a third wide band gap semiconductor having a conductivity of the first polarity coupled in electrical contact with the second layer. The layer having a conductivity of the second polarity is lightly doped relative to the layers having a conductivity of the first polarity.Type: ApplicationFiled: August 15, 2013Publication date: December 12, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Avinash Srikrishnan Kashyap, David Mulford Shaddock, Emad Andarawis Andarawis, Peter Micah Sandvik, Stephen Daley Arthur, Vinayak Tilak
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Patent number: 8591188Abstract: A clearance sensing system for a rotating machine includes a plurality of sensor probes disposed within a stationary shroud of the rotating machine. Each of the plurality of sensor probes is adapted to measure a parameter indicative of an axial and a radial displacement of a rotating component within the shroud and to produce a signal that corresponds to the parameter. In certain embodiments, this parameter may include a capacitance between the rotating component and the sensor probe. The clearance sensing system further includes a circuit that receives the signal from each of the plurality of sensor probes and determines (a) the axial displacement of the rotating component within the shroud and (b) a radial displacement of the rotating component relative to the shroud.Type: GrantFiled: April 26, 2005Date of Patent: November 26, 2013Assignee: General Electric CompanyInventors: Minesh Ashok Shah, Mahadevan Balasubramaniam, Philip Paul Beauchamp, Todd Alan Anderson, Samhita Dasgupta, David Mulford Shaddock, Emad Andarawis Andarawis
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Patent number: RE48015Abstract: An electronic packaging assembly having a semiconductor integrated circuit and a plurality of interconnect components is provided. The plurality of interconnect components is operatively coupled to the semiconductor integrated circuit. Further, one or more interconnect components include one or more support elements having a first surface and a second surface, and one or more spring elements having a first end and a second end, and wherein first ends of the one or more spring elements are coupled to the first surface or the second surface of a respective support element.Type: GrantFiled: February 1, 2018Date of Patent: May 26, 2020Assignee: General Electric CompanyInventors: Gamal Refai-Ahmed, David Mulford Shaddock, Arun Virupaksha Gowda, John Anthony Vogel, Christian Michael Giovanniello