Patents by Inventor Christopher Britton
Christopher Britton 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: 11944272Abstract: A system operable to allowing viewing of a physical subject with information regarding at least an item separate from the subject overlaid thereon. The system includes a viewscreen. The system is further able to determine the position of the item relative to the subject.Type: GrantFiled: December 5, 2018Date of Patent: April 2, 2024Assignee: Medtronic Xomed, Inc.Inventors: Kyle A. Godwin, James Britton Hissong, Christopher S. Kellar
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Publication number: 20240077028Abstract: A method for operating a rotating detonation engine, having a radially outer wall extending along an axis; a radially inner wall extending along the axis, wherein the radially inner wall is positioned within the radially outer wall to define an annular detonation chamber having an inlet and an outlet, wherein the method includes flowing liquid phase fuel along at least one wall of the radially inner wall and the radially outer wall in a direction from the outlet toward the inlet to cool the at least one wall and heat the liquid fuel to provide a heated liquid fuel; flowing the heated liquid fuel to a mixer at the inlet to reduce pressure of the heated liquid fuel, flash vaporize the heated liquid fuel and mix flash vaporized fuel with oxidant to produce a vaporized fuel-oxidant mixture; and detonating the mixture in the annular detonation chamber.Type: ApplicationFiled: November 9, 2023Publication date: March 7, 2024Applicant: RTX CorporationInventors: Christopher Britton Greene, James M. Donohue, Peter AT Cocks
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Patent number: 11852077Abstract: A method for operating a rotating detonation engine, having a radially outer wall extending along an axis; a radially inner wall extending along the axis, wherein the radially inner wall is positioned within the radially outer wall to define an annular detonation chamber having an inlet and an outlet, wherein the method includes flowing liquid phase fuel along at least one wall of the radially inner wall and the radially outer wall in a direction from the outlet toward the inlet to cool the at least one wall and heat the liquid fuel to provide a heated liquid fuel; flowing the heated liquid fuel to a mixer at the inlet to reduce pressure of the heated liquid fuel, flash vaporize the heated liquid fuel and mix flash vaporized fuel with oxidant to produce a vaporized fuel-oxidant mixture; and detonating the mixture in the annular detonation chamber.Type: GrantFiled: April 15, 2021Date of Patent: December 26, 2023Assignee: RTX CorporationInventors: Christopher Britton Greene, James M. Donohue, Peter AT Cocks
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Publication number: 20230220999Abstract: A combustor for a detonation engine includes a radially outer wall extending along an axis; a radially inner wall extending along the axis, wherein the radially inner wall is positioned at least partially within the radially outer wall to define an annular detonation chamber having an inlet for fuel and oxidant and an outlet; a cooling flow passage defined along at least one of the radially outer wall and the radially inner wall and comprising at least two axially spaced cooling flow passage sections, whereby a different cooling rate can be implemented in the at least two axially spaced cooling flow passage sections.Type: ApplicationFiled: April 9, 2021Publication date: July 13, 2023Applicant: Raytheon Technologies CorporationInventors: Joseph Turney, Christopher Britton Greene, Peter AT Cocks, Andrzej Ernest Kuczek, James M. Donohue
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Publication number: 20230201609Abstract: The disclosed techniques allow for externalizing errors from an implantable medical device using the device's charging coil, for receipt at an external charger or other external device. Transmission of errors in this manner is particularly useful when telemetry of error codes through a traditional telemetry coil in the implant is not possible, for example, because the error experienced is so fundamental as to preclude use of such traditional means. By externalizing the error via the charging coil, and though the use of robust error modulation circuitry in the implant designed to be generally insensitive to fundamental errors, the external charger can be consulted to understand the failure mode involved, and to take appropriate action.Type: ApplicationFiled: February 20, 2023Publication date: June 29, 2023Inventors: Goran N. Marnfeldt, Jordi Parramon, Christopher Britton Gould
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Patent number: 11624317Abstract: Supercritical fluid systems and aircraft power systems are described. The systems include a compressor, a turbine, and a generator. A primary working fluid flow path has a primary working fluid that passes through the compressor, a separator, the turbine, and back to the compressor. A secondary working fluid flow path having a secondary working fluid that passes through the generator, the compressor, the separator, and back to the generator. The primary working fluid and the secondary working fluid are compressed and mixed within the compressor to form a mixture of the two fluids and the separator separates the mixture of the two fluids to direct the primary working fluid back to the turbine and the secondary working fluid to the generator.Type: GrantFiled: December 22, 2021Date of Patent: April 11, 2023Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Brian M. Holley, Christopher Britton Greene
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Patent number: 11607553Abstract: The disclosed techniques allow for externalizing errors from an implantable medical device using the device's charging coil, for receipt at an external charger or other external device. Transmission of errors in this manner is particularly useful when telemetry of error codes through a traditional telemetry coil in the implant is not possible, for example, because the error experienced is so fundamental as to preclude use of such traditional means. By externalizing the error via the charging coil, and though the use of robust error modulation circuitry in the implant designed to be generally insensitive to fundamental errors, the external charger can be consulted to understand the failure mode involved, and to take appropriate action.Type: GrantFiled: November 18, 2020Date of Patent: March 21, 2023Assignee: Boston Scientific Neuromodulation CorporationInventors: Goran N. Marnfeldt, Jordi Parramon, Christopher Britton Gould
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Patent number: 11591101Abstract: A diffuser may comprise an inlet and an outlet. The inlet may comprise an arcuate shape. The outlet may comprise an annular shape. The diffuser may transition from the arcuate shape at the inlet to the annular shape at the outlet. The diffuser may comprise a radially inner wall and a radially outer wall disposed opposite the radially inner wall. The radially inner wall and the radially outer wall may partially define a duct.Type: GrantFiled: January 15, 2020Date of Patent: February 28, 2023Assignee: Raytheon Technologies CorporationInventors: Christopher Britton Greene, Stuart S. Ochs
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Publication number: 20220333530Abstract: A method for operating a rotating detonation engine, having a radially outer wall extending along an axis; a radially inner wall extending along the axis, wherein the radially inner wall is positioned within the radially outer wall to define an annular detonation chamber having an inlet and an outlet, wherein the method includes flowing liquid phase fuel along at least one wall of the radially inner wall and the radially outer wall in a direction from the outlet toward the inlet to cool the at least one wall and heat the liquid fuel to provide a heated liquid fuel; flowing the heated liquid fuel to a mixer at the inlet to reduce pressure of the heated liquid fuel, flash vaporize the heated liquid fuel and mix flash vaporized fuel with oxidant to produce a vaporized fuel-oxidant mixture; and detonating the mixture in the annular detonation chamber.Type: ApplicationFiled: April 15, 2021Publication date: October 20, 2022Applicant: Raytheon Technologies CorporationInventors: Christopher Britton Greene, James M. Donohue, Peter AT Cocks
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Publication number: 20220325893Abstract: A combustor for a rotating detonation engine includes an outer tapered wall extending along an axis; an inner tapered wall extending along the axis, wherein the inner tapered wall is positioned within the outer tapered wall to define an annular combustion chamber having an annular gap between the outer tapered wall and the inner tapered wall, wherein the outer tapered wall is moveable relative to the inner tapered wall along the axis, and wherein movement of the outer tapered wall relative to the inner tapered wall changes the annular gap of the annular combustion chamber. Obstacles can be positioned on either or both of inner and outer wall to enhance turbulence within the combustion chamber.Type: ApplicationFiled: February 14, 2022Publication date: October 13, 2022Applicant: Raytheon Technologies CorporationInventors: Christopher Britton Greene, Peter AT Cocks, Xiaoyi Li, James M. Donohue
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Patent number: 11448466Abstract: A heat exchanger including a plurality of tubes, a header, and a plurality of flow voids. The plurality of tubes extends in a first direction through which a first fluid is configured to flow. Each of the plurality of tubes have waves that repeat at regular intervals along the first flow direction and are spaced from one another vertically and laterally in the second direction. The header extends in the first direction and is attached to each of the plurality of tubes. The header is configured to convey the first fluid to each of the plurality of tubes. The plurality of flow voids are formed between the plurality of tubes. The plurality of flow voids extend in a second direction through which a second fluid is configured to flow such that the second fluid is in thermal contact with the plurality of tubes.Type: GrantFiled: December 9, 2020Date of Patent: September 20, 2022Assignee: Hamilton Sundstrand CorporationInventors: Joseph Turney, Robert H. Dold, Christopher Britton Greene, John H. Whiton
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Publication number: 20220275752Abstract: Supercritical fluid systems and aircraft power systems are described. The systems include a compressor, a turbine, and a generator. A primary working fluid flow path has a primary working fluid that passes through the compressor, a separator, the turbine, and back to the compressor. A secondary working fluid flow path having a secondary working fluid that passes through the generator, the compressor, the separator, and back to the generator. The primary working fluid and the secondary working fluid are compressed and mixed within the compressor to form a mixture of the two fluids and the separator separates the mixture of the two fluids to direct the primary working fluid back to the turbine and the secondary working fluid to the generator.Type: ApplicationFiled: December 22, 2021Publication date: September 1, 2022Inventors: Brian M. Holley, Christopher Britton Greene
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Patent number: 11326617Abstract: A boost compressor assembly may comprise an outer annular structure and a plurality of blades. Each blade in the plurality of blades may be moveably coupled to the outer annular structure. The plurality of blades may be configured to deploy in response to the boost compressor assembly rotating. The plurality of blades may be configured to retract when the boost compressor assembly stops rotating.Type: GrantFiled: January 14, 2020Date of Patent: May 10, 2022Assignee: Raytheon Technologies CorporationInventors: Christopher Britton Greene, Dustin Joseph Frohnapfel
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Patent number: 11225905Abstract: Supercritical fluid systems and aircraft power systems are described. The systems include a compressor, a turbine operably coupled to the compressor, a generator operably coupled to the turbine and configured to generate power, a primary working fluid flow path having a primary working fluid configured to pass through the compressor, a separator, the turbine, and back to the compressor, and a secondary working fluid flow path passing through the generator, the compressor, the separator, and back to the generator. The primary working fluid is supercritical carbon dioxide (sCO2) and the secondary working fluid is a fluid having at least one of a density less than the primary working fluid and a molecular size smaller than the primary working fluid.Type: GrantFiled: September 11, 2020Date of Patent: January 18, 2022Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventors: Brian M. Holley, Christopher Britton Greene
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Publication number: 20210215098Abstract: A diffuser may comprise an inlet and an outlet. The inlet may comprise an arcuate shape. The outlet may comprise an annular shape. The diffuser may transition from the arcuate shape at the inlet to the annular shape at the outlet. The diffuser may comprise a radially inner wall and a radially outer wall disposed opposite the radially inner wall. The radially inner wall and the radially outer wall may partially define a duct.Type: ApplicationFiled: January 15, 2020Publication date: July 15, 2021Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: CHRISTOPHER BRITTON GREENE, Stuart S. Ochs
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Publication number: 20210215168Abstract: A boost compressor assembly may comprise an outer annular structure and a plurality of blades. Each blade in the plurality of blades may be moveably coupled to the outer annular structure. The plurality of blades may be configured to deploy in response to the boost compressor assembly rotating. The plurality of blades may be configured to retract when the boost compressor assembly stops rotating.Type: ApplicationFiled: January 14, 2020Publication date: July 15, 2021Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Christopher Britton Greene, Dustin Joseph Frohnapfel
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Patent number: 10964431Abstract: An external control device for use with a neurostimulator coupled to a plurality of electrodes capable of conveying electrical stimulation energy into tissue in which the electrodes are implanted. The external control device comprises a user interface including at least one control element, a processor configured for independently assigning stimulation amplitude values to a first set of the electrodes, for linking the first set of electrodes together in response to the actuation of the at least one control element, and for preventing the stimulation amplitude values of the first linked set of electrodes from being varied relative to each other, and output circuitry configured for transmitting the stimulation amplitude values to the neurostimulator.Type: GrantFiled: January 8, 2019Date of Patent: March 30, 2021Assignee: Boston Scientific Neuromodulation CorporationInventors: Prakash Rao, Sridhar Kothandaraman, Christopher Britton Gould
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Publication number: 20210088285Abstract: A heat exchanger including a plurality of tubes, a header, and a plurality of flow voids. The plurality of tubes extends in a first direction through which a first fluid is configured to flow. Each of the plurality of tubes have waves that repeat at regular intervals along the first flow direction and are spaced from one another vertically and laterally in the second direction. The header extends in the first direction and is attached to each of the plurality of tubes. The header is configured to convey the first fluid to each of the plurality of tubes. The plurality of flow voids are formed between the plurality of tubes. The plurality of flow voids extend in a second direction through which a second fluid is configured to flow such that the second fluid is in thermal contact with the plurality of tubes.Type: ApplicationFiled: December 9, 2020Publication date: March 25, 2021Inventors: Joseph Turney, Robert H. Dold, Christopher Britton Greene, John H. Whiton
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Publication number: 20210069514Abstract: The disclosed techniques allow for externalizing errors from an implantable medical device using the device's charging coil, for receipt at an external charger or other external device. Transmission of errors in this manner is particularly useful when telemetry of error codes through a traditional telemetry coil in the implant is not possible, for example, because the error experienced is so fundamental as to preclude use of such traditional means. By externalizing the error via the charging coil, and though the use of robust error modulation circuitry in the implant designed to be generally insensitive to fundamental errors, the external charger can be consulted to understand the failure mode involved, and to take appropriate action.Type: ApplicationFiled: November 18, 2020Publication date: March 11, 2021Inventors: Goran N. Marnfeldt, Jordi Parramon, Christopher Britton Gould
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Patent number: 10890381Abstract: A heat exchanger including a plurality of tubes, a header, and a plurality of flow voids. The plurality of tubes extends in a first direction through which a first fluid is configured to flow. Each of the plurality of tubes have waves that repeat at regular intervals along the first flow direction and are spaced from one another vertically and laterally in the second direction. The header extends in the first direction and is attached to each of the plurality of tubes. The header is configured to convey the first fluid to each of the plurality of tubes. The plurality of flow voids are formed between the plurality of tubes. The plurality of flow voids extend in a second direction through which a second fluid is configured to flow such that the second fluid is in thermal contact with the plurality of tubes.Type: GrantFiled: January 15, 2019Date of Patent: January 12, 2021Assignee: Hamilton Sundstrand CorporationInventors: Joseph Turney, Robert H. Dold, Christopher Britton Greene, John Whiton