Patents by Inventor David Briggs
David Briggs 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: 20170051674Abstract: An engine component for a gas turbine engine includes a film-cooled recess comprising a contoured portion defining a step. A hot surface facing hot combustion gas and a cooling surface facing a cooling fluid flow are fluidly coupled by a passage through the engine component. The passage further comprises an inlet in the cooling surface and an outlet in the step. The inlet, passage and outlet are oriented such that the cooling fluid flowing through the passage and exiting the outlet diffuses within the contoured portion prevents premature mixing out with the hot fluid flow.Type: ApplicationFiled: August 19, 2015Publication date: February 23, 2017Inventors: Robert Francis Manning, Ronald Scott Bunker, Robert Frederick Bergholz, Robert David Briggs
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Patent number: 9528880Abstract: A temperature measurement system includes a plurality of filaments. The plurality of filaments are configured to emit thermal radiation in a relatively broad and substantially continuous wavelength band at least partially representative of a temperature of the plurality of filaments. A first and second portion of the filaments has a differing first and a second diameter and/or emissivity, respectively. The system also includes a detector array configured to generate electrical signals at least partially representative of the thermal radiation received from the filaments. The system further includes a controller communicatively coupled to the detector array configured to transform the first electrical signals to a first temperature indication at least partially as a function of the first diameter and/or first emissivity and transform the second electrical signals to a second temperature indication at least partially as a function of the second diameter and/or emissivity.Type: GrantFiled: August 16, 2013Date of Patent: December 27, 2016Assignee: General Electric CompanyInventors: Guanghua Wang, Nirm Velumylum Nirmalan, Ronald Scott Bunker, Todd Garrett Wetzel, Robert Michael Zacharias, Shawn David Wehe, Robert David Briggs
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Publication number: 20160341046Abstract: A turbine engine device comprising a turbine engine blade including a cooling channel extending on the interior of the blade, the cooling channel having at least one turn of greater than forty-five degrees, the cooling channel turn demarcated by a cooling channel wall having a curvature operative to redirect fluid flowing therein, the cooling channel wall including a dust opening leading into a dust hole demarcated by a dust wall having a longitudinal axis that is coaxial with a tangent line taken along the curvature of the cooling channel wall.Type: ApplicationFiled: May 21, 2015Publication date: November 24, 2016Inventors: KEVIN ROBERT FELDMANN, ROBERT SCOTT BUNKER, ROBERT DAVID BRIGGS, JASON RANDOLPH ALLEN
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Publication number: 20160273363Abstract: An engine component for a gas turbine engine includes a film-cooled substrate having a hot surface facing hot combustion gas and a cooling surface facing a cooling fluid flow. The substrate includes one or more film holes that have a metering section defining a metering diameter and a diffusing section that defines a hooded length.Type: ApplicationFiled: March 17, 2015Publication date: September 22, 2016Inventors: Ronald Scott BUNKER, Frederick Alan BUCK, Robert David BRIGGS, Gulcharan Singh BRAINCH, Kevin Robert FELDMANN
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Publication number: 20160261197Abstract: Disclosed are advances in the arts with novel and useful current mode regulators. Circuits, systems, and methods for current mode regulation include a primary side for receiving an input signal and a secondary for outputting an output signal. A regulator spans the primary and secondary sides in a configuration by which the input signal may be rectified and thereafter provided to the output node as an output signal. A current monitor is provided at the output node for comparing the output signal to a reference. A communication link is included for providing feedback to the primary side of the regulator for use in regulating the signal.Type: ApplicationFiled: May 16, 2016Publication date: September 8, 2016Inventors: Ross E. Teggatz, David Briggs, Amer H. Atrash, Wayne T. Chen
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Publication number: 20160251966Abstract: An engine component for a gas turbine engine includes a film-cooled substrate having a hot surface facing hot combustion gas flow and a cooling surface facing a cooling fluid flow. A film hole extends through the substrate to an outlet on the hot surface. A flow conditioning structure is provided upstream of the outlet.Type: ApplicationFiled: February 27, 2015Publication date: September 1, 2016Inventors: Ronald Scott Bunker, Robert David Briggs
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Publication number: 20160201476Abstract: An airfoil for a turbine engine includes a cooling cavity and a cooling fluid supply cavity which supplies cooling fluid to the cooling cavity through a passage. The cooling cavity can be provided with a swirl feature for imparting a swirling motion to the cooling fluid.Type: ApplicationFiled: October 14, 2015Publication date: July 14, 2016Inventors: Ronald Scott BUNKER, Robert Frederick BERGHOLZ, Robert David BRIGGS, Kevin Robert FELDMANN
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Publication number: 20160186605Abstract: A shroud assembly for a turbine section of a turbine engine includes a shroud plate in thermal communication with a hot combustion gas flow and a baffle overlying the shroud plate to define a region. One or more shaped cooling features are located along the region such that a cooling fluid flow passing through the region encounters the shaped cooling features to increase the turbulence of the cooling fluid flow.Type: ApplicationFiled: October 9, 2015Publication date: June 30, 2016Inventors: Robert David BRIGGS, Gulcharan Singh BRAINCH, Curtis Walton STOVER
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Patent number: 9335215Abstract: A temperature measurement system includes at least one filament configured to emit thermal radiation in a relatively broad and substantially continuous wavelength band that is at least partially representative of a temperature of the at least one filament. The system also includes an optical system configured to receive at least a portion of the thermal radiation emitted from the filament. The optical system includes a wavelength splitting device configured to split the emitted thermal radiation into at least one relatively narrow wavelength band of thermal radiation. The optical system also includes a detector array configured to receive the at least one relatively narrow wavelength band of thermal radiation and to generate electrical signals at least partially representative of the received thermal radiation. The temperature measurement system further includes a controller communicatively coupled to the detector array.Type: GrantFiled: July 31, 2012Date of Patent: May 10, 2016Assignee: General Electric CompanyInventors: Guanghua Wang, Nirm Velumylum Nirmalan, Todd Garrett Wetzel, Ronald Scott Bunker, Robert Michael Zacharias, Shawn David Wehe, Robert David Briggs, Jonathan Edward Slepski
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Publication number: 20160103045Abstract: Sample preparation device that allows for a complete bind, wash, elute, buffer-exchange and concentration process to be carried out without sample transfer between multiple devices. The device includes a reservoir, a column for holding chromatography media, a holder region for holding a filtration device, and an outlet. The filtration device plugs into the holder region of the centrifugal device, and the assembly can be placed in an optional holder. The assembly, with or without the optional holder, can be placed in a conventional centrifuge tube for centrifugation. The entire bind, wash, elute, buffer exchange and concentration steps can be carried out with the apparatus without any pipette transfers (and the associated sample losses. The sample preparation device also can be used for binding and washing steps, in which case the filtration device is not needed, and for buffer exchange and concentration steps, in which case the media is not needed.Type: ApplicationFiled: December 18, 2015Publication date: April 14, 2016Inventors: Christopher A. Scott, Timothy K. Nadler, Kurt Greenizen, Louis Bonhomme, Sara D. Gutierrez, Masaharu Mabuchi, David Briggs, Phillip Clark, Ralph T. Scaduto
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Patent number: 9304070Abstract: Sample preparation device that allows for a complete bind, wash, elute, buffer-exchange and concentration process to be carried out without sample transfer between multiple devices. The device includes a reservoir, a column for holding chromatography media, a holder region for holding a filtration device, and an outlet. The filtration device plugs into the holder region of the centrifugal device, and the assembly can be placed in an optional holder. The assembly, with or without the optional holder, can be placed in a conventional centrifuge tube for centrifugation. The entire bind, wash, elute, buffer exchange and concentration steps can be carried out with the apparatus without any pipette transfers (and the associated sample losses. The sample preparation device also can be used for binding and washing steps, in which case the filtration device is not needed, and for buffer exchange and concentration steps, in which case the media is not needed.Type: GrantFiled: June 27, 2012Date of Patent: April 5, 2016Assignee: EMD Millipore CorporationInventors: Christopher A. Scott, Timothy K. Nadler, Kurt Greenizen, Louis Bonhomme, Sara D. Gutierrez, Masaharu Mabuchi, David Briggs, Phillip Clark, Ralph T. Scaduto
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Publication number: 20150345305Abstract: A structure for disrupting the flow of a fluid, the structure comprising: (a) a first lateral wall and a second lateral wall spaced apart from one another, yet joined, by a floor and a ceiling; and, (b) a vorticor pin extending incompletely between the first lateral wall and the second lateral wall in a direction parallel to an X-axis, the vorticor pin concurrently rising above and extending away from the floor to a height, in a direction parallel to a Y-axis, to provide a gap between the vorticor pin and the ceiling, the vorticor pin comprising: (i) a front surface extending incompletely between the first lateral wall and the second lateral wall, the front surface extending above the floor and having an arcuate portion that is transverse with respect to a Z-axis, which is perpendicular to the X-axis and the Y-axis, and (ii) a rear surface extending between the first lateral wall and the second lateral wall, the rear surface extending between the front surface and the floor, the rear surface having an incliniType: ApplicationFiled: May 14, 2015Publication date: December 3, 2015Inventors: Jason Randolph Allen, Robert David Briggs, Gulcharan Singh Brainch, Curtis Walton Stover
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Patent number: 9103756Abstract: Sample preparation device that allows for a complete bind, wash, elute, buffer-exchange and concentration process to be carried out without sample transfer between multiple devices. The device includes a reservoir, a column for holding chromatography media, a holder region for holding a filtration device, and an outlet. The filtration device plugs into the holder region of the centrifugal device, and the assembly can be placed in an optional holder. The assembly, with or without the optional holder, can be placed in a conventional centrifuge tube for centrifugation. The entire bind, wash, elute, buffer exchange and concentration steps can be carried out with the apparatus without any pipette transfers (and the associated sample losses. The sample preparation device also can be used for binding and washing steps, in which case the filtration device is not needed, and for buffer exchange and concentration steps, in which case the media is not needed.Type: GrantFiled: September 19, 2013Date of Patent: August 11, 2015Assignee: EMD Millipore CorporationInventors: Christopher A. Scott, Timothy K. Nadler, Kurt Greenizen, Louis Bonhomme, Sara D. Gutierrez, Masaharu Mabuchi, David Briggs, Phillip Clark, Ralph T. Scaduto
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Publication number: 20150049786Abstract: A temperature measurement system includes a plurality of filaments. The plurality of filaments are configured to emit thermal radiation in a relatively broad and substantially continuous wavelength band at least partially representative of a temperature of the plurality of filaments. A first and second portion of the filaments has a differing first and a second diameter and/or emissivity, respectively. The system also includes a detector array configured to generate electrical signals at least partially representative of the thermal radiation received from the filaments. The system further includes a controller communicatively coupled to the detector array configured to transform the first electrical signals to a first temperature indication at least partially as a function of the first diameter and/or first emissivity and transform the second electrical signals to a second temperature indication at least partially as a function of the second diameter and/or emissivity.Type: ApplicationFiled: August 16, 2013Publication date: February 19, 2015Applicant: General Electric CompanyInventors: Guanghua Wang, Nirm Velumylum Nirmalan, Ronald Scott Bunker, Todd Garrett Wetzel, Robert Michael Zacharias, Shawn David Wehe, Robert David Briggs
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Publication number: 20140237906Abstract: In this novel PDC cutter, diamond powders of different composition and/or different grain size, are distributed, shaped, and compacted with a novel pressing tool, in multiple stages, spatially arranged into different regions of the PDC diamond body, then HPHT sintered to form one PDC body with spatially varying hardness, toughness and thermal resistance.Type: ApplicationFiled: April 9, 2014Publication date: August 28, 2014Applicant: INTERNATIONAL DIAMOND SERVICES, INC.Inventors: Samer ALKHALAILEH, David BRIGGS, Jiang XIAOLE, Zhao YUNLIANG
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Publication number: 20140033737Abstract: A temperature measurement system includes at least one filament configured to emit thermal radiation in a relatively broad and substantially continuous wavelength band that is at least partially representative of a temperature of the at least one filament. The system also includes an optical system configured to receive at least a portion of the thermal radiation emitted from the filament. The optical system includes a wavelength splitting device configured to split the emitted thermal radiation into at least one relatively narrow wavelength band of thermal radiation. The optical system also includes a detector array configured to receive the at least one relatively narrow wavelength band of thermal radiation and to generate electrical signals at least partially representative of the received thermal radiation. The temperature measurement system further includes a controller communicatively coupled to the detector array.Type: ApplicationFiled: July 31, 2012Publication date: February 6, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Guanghua Wang, Nirm Velumylum Nirmalan, Todd Garrett Wetzel, Ronald Scott Bunker, Robert Michael Zacharias, Shawn David Wehe, Robert David Briggs, Jonathan Edward Slepski
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Publication number: 20140017151Abstract: Sample preparation device that allows for a complete bind, wash, elute, buffer-exchange and concentration process to be carried out without sample transfer between multiple devices. The device includes a reservoir, a column for holding chromatography media, a holder region for holding a filtration device, and an outlet. The filtration device plugs into the holder region of the centrifugal device, and the assembly can be placed in an optional holder. The assembly, with or without the optional holder, can be placed in a conventional centrifuge tube for centrifugation. The entire bind, wash, elute, buffer exchange and concentration steps can be carried out with the apparatus without any pipette transfers (and the associated sample losses. The sample preparation device also can be used for binding and washing steps, in which case the filtration device is not needed, and for buffer exchange and concentration steps, in which case the media is not needed.Type: ApplicationFiled: September 19, 2013Publication date: January 16, 2014Applicant: EMD Millipore CorporationInventors: Christopher A. Scott, Timothy K. Nadler, Kurt Greenizen, Louis Bonhomme, Sara D. Gutierrez, Masaharu Mabuchi, David Briggs, Phillip Clark, Ralph T. Scaduto
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Patent number: 8408872Abstract: A heat transfer apparatus, includes a member defining a wall exposed to fluid flow in a predetermined direction of flow; and a plurality of turbulators disposed on the wall. Each turbulator includes an upright front face which generally faces the direction of flow, and a back face which defines a ramp-like shape tapering from the front face to the wall.Type: GrantFiled: November 13, 2009Date of Patent: April 2, 2013Assignee: General Electric CompanyInventors: Robert David Briggs, Shawn Michael Pearson, John Creighton Schilling
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Publication number: 20130033903Abstract: Disclosed are advances in the arts with novel and useful current mode regulators. Circuits, systems, and methods for current mode regulation include a primary side for receiving an input signal and a secondary for outputting an output signal. A regulator spans the primary and secondary sides in a configuration by which the input signal may be rectified and thereafter provided to the output node as an output signal. A current monitor is provided at the output node for comparing the output signal to a reference. A communication link is included for providing feedback to the primary side of the regulator for use in regulating the signal.Type: ApplicationFiled: August 4, 2012Publication date: February 7, 2013Applicant: TRIUNE IP LLCInventors: Ross E. Teggatz, David Briggs, Amer H. Atrash, Wayne T. Chen
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Publication number: 20130017620Abstract: Sample preparation device that allows for a complete bind, wash, elute, buffer-exchange and concentration process to be carried out without sample transfer between multiple devices. The device includes a reservoir, a column for holding chromatography media, a holder region for holding a filtration device, and an outlet. The filtration device plugs into the holder region of the centrifugal device, and the assembly can be placed in an optional holder. The assembly, with or without the optional holder, can be placed in a conventional centrifuge tube for centrifugation. The entire bind, wash, elute, buffer exchange and concentration steps can be carried out with the apparatus without any pipette transfers (and the associated sample losses. The sample preparation device also can be used for binding and washing steps, in which case the filtration device is not needed, and for buffer exchange and concentration steps, in which case the media is not needed.Type: ApplicationFiled: June 27, 2012Publication date: January 17, 2013Applicant: EMD MILLIPORE CORPORATIONInventors: Christopher A. Scott, Timothy K. Nadler, Kurt Greenizen, Louis Bonhomme, Sara D. Gutierrez, Masaharu Mabuchi, David Briggs, Phillip Clark, Ralph T. Scaduto