Patents by Inventor Christian Stevenson
Christian Stevenson 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: 11014189Abstract: The present disclosure generally relates to methods of additive manufacturing with control of the energy beam incidence angle that allows for aligning the laser beam angle to directly oppose the building direction of an angled wall. The method includes building an object in an additive manufacturing powder bed where the object includes a surface that is defined by a build vector projecting outward relative to the build plate center at an angle ? relative to normal of the build plate such that 90°>?>0° and the directed energy beam forms an angle ?L2 relative to normal of the build plate such that 270°>?L2>180°, wherein ?L2??=180°±?, and ?<45°. The present methods provide finished objects having overhanging regions with more consistent surface finish and resistance to mechanical strain or stress.Type: GrantFiled: May 25, 2018Date of Patent: May 25, 2021Assignee: GENERAL ELECTRIC COMPANYInventors: Rachel Wyn Levine, Christian Stevenson, Justin Mamrak, MacKenzie Ryan Redding
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Patent number: 10821718Abstract: The present disclosure generally relates to methods and apparatuses for secondary material deposition and insert deposition during additive manufacturing (AM) processes. Such methods and apparatuses can be used to embed chemical signatures into manufactured objects, and such embedded chemical signatures may find use in anti-counterfeiting operations and in manufacture of objects with multiple materials.Type: GrantFiled: June 23, 2017Date of Patent: November 3, 2020Assignee: General Electric CompanyInventors: Scott Alan Gold, Christian Stevenson
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Publication number: 20190358736Abstract: The present disclosure generally relates to methods of additive manufacturing with control of the energy beam incidence angle that allows for aligning the laser beam angle to directly oppose the building direction of an angled wall. The method includes building an object in an additive manufacturing powder bed where the object includes a surface that is defined by a build vector projecting outward relative to the build plate center at an angle ? relative to normal of the build plate such that 90°>?>0° and the directed energy beam forms an angle ?L2 relative to normal of the build plate such that 270°>?L2>180°, wherein ?L2??=180°±?, and ?<45°. The present methods provide finished objects having overhanging regions with more consistent surface finish and resistance to mechanical strain or stress.Type: ApplicationFiled: May 25, 2018Publication date: November 28, 2019Inventors: Rachel Wyn LEVINE, Christian STEVENSON, Justin MAMRAK, MacKenzie Ryan REDDING
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Publication number: 20180370213Abstract: The present disclosure generally relates to methods and apparatuses for secondary material deposition and insert deposition during additive manufacturing (AM) processes. Such methods and apparatuses can be used to embed chemical signatures into manufactured objects, and such embedded chemical signatures may find use in anti-counterfeiting operations and in manufacture of objects with multiple materials.Type: ApplicationFiled: June 23, 2017Publication date: December 27, 2018Inventors: Scott Alan GOLD, Christian STEVENSON
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Patent number: 8794545Abstract: A fuel injector includes a fuel delivery tube; a plurality of pre-mixing tubes, each pre-mixing tube comprising at least one fuel injection hole; an upstream tube support plate that supports upstream ends of the plurality of pre-mixing tubes; a downstream tube support plate that supports downstream ends of the plurality of pre-mixing tubes; an outer wall connecting the upstream tube support plate and the downstream tube support plate and defining a plenum therewith; and a baffle provided in the plenum. The baffle includes a radial portion. A fuel delivered in the upstream direction by the fuel delivery tube is directed radially outwardly in the plenum between the radial portion of the baffle and the downstream tube support plate, then in the downstream direction around an outer edge portion of the radial portion, and then radially inwardly between the radial portion and the upstream tube support plate.Type: GrantFiled: September 25, 2009Date of Patent: August 5, 2014Assignee: General Electric CompanyInventors: Thomas Edward Johnson, Benjamin Lacy, Christian Stevenson
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Patent number: 8505302Abstract: The present application provides a premixer for a combustor. The premixer may include a fuel plenum with a number of fuel tubes and a burner tube with a number of air tubes. The fuel tubes extend about the air tubes.Type: GrantFiled: November 5, 2012Date of Patent: August 13, 2013Assignee: General Electric CompanyInventors: Jong Ho Uhm, Balachandar Naidu, Willy Steve Ziminsky, Gilbert Otto Kraemer, Ertan Yilmaz, Benjamin Lacy, Christian Stevenson, David Felling
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Publication number: 20130067926Abstract: The present application provides a premixer for a combustor. The premixer may include a fuel plenum with a number of fuel tubes and a burner tube with a number of air tubes. The fuel tubes extend about the air tubes.Type: ApplicationFiled: November 5, 2012Publication date: March 21, 2013Applicant: General Electric CompanyInventors: Jong Ho Uhm, Balachandar Varatharajan, Willy Steve Ziminsky, Gilbert Otto Kraemer, Ertan Yilmaz, Benjamin Lacy, Christian Stevenson, David Felling
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Patent number: 8334749Abstract: A temperature detector includes a first metal and a second metal different from the first metal. The first metal includes a plurality of wires and the second metal includes a wire. The plurality of wires of the first metal are connected to the wire of the second metal in parallel junctions. Another temperature detector includes a plurality of resistance temperature detectors. The plurality of resistance temperature detectors are connected at a plurality of junctions. A method of detecting a temperature change of a component of a turbine includes providing a temperature detector include ing a first metal and a second metal different from the first metal connected to each other at a plurality of junctions in contact with the component; and detecting any voltage change at any junction.Type: GrantFiled: September 28, 2009Date of Patent: December 18, 2012Assignee: General Electric CompanyInventors: Benjamin Lacy, Gilbert Kraemer, Christian Stevenson
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Patent number: 8327642Abstract: The present application provides a premixer for a combustor. The premixer may include a fuel plenum with a number of fuel tubes and a burner tube with a number of air tubes. The fuel tubes extend about the air tubes.Type: GrantFiled: October 21, 2008Date of Patent: December 11, 2012Assignee: General Electric CompanyInventors: Jong Ho Uhm, Balachandar Varatharajan, Willy Steve Ziminsky, Gilbert Otto Kraemer, Ertan Yilmaz, Benjamin Lacy, Christian Stevenson, David Felling
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Publication number: 20110073684Abstract: A fuel injector includes a fuel delivery tube; a plurality of pre-mixing tubes, each pre-mixing tube comprising at least one fuel injection hole; an upstream tube support plate that supports upstream ends of the plurality of pre-mixing tubes; a downstream tube support plate that supports downstream ends of the plurality of pre-mixing tubes; an outer wall connecting the upstream tube support plate and the downstream tube support plate and defining a plenum therewith; and a baffle provided in the plenum. The baffle includes a radial portion. A fuel delivered in the upstream direction by the fuel delivery tube is directed radially outwardly in the plenum between the radial portion of the baffle and the downstream tube support plate, then in the downstream direction around an outer edge portion of the radial portion, and then radially inwardly between the radial portion and the upstream tube support plate.Type: ApplicationFiled: September 25, 2009Publication date: March 31, 2011Inventors: Thomas Edward JOHNSON, Benjamin LACY, Christian STEVENSON
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Publication number: 20110000215Abstract: The present application provides a combustor for a gas turbine engine. The combustor may include a combustor can with a number of nozzles therein and a flow conditioner positioned around the combustor can. The flow conditioner may include a number of apertures therein.Type: ApplicationFiled: July 1, 2009Publication date: January 6, 2011Applicant: General Electric CompanyInventors: Benjamin Lacy, Thomas Johnson, Christian Stevenson, William York, Baifang Zuo
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Publication number: 20100095676Abstract: The present application provides a premixer for a combustor. The premixer may include a fuel plenum with a number of fuel tubes and a burner tube with a number of air tubes. The fuel tubes extend about the air tubes.Type: ApplicationFiled: October 21, 2008Publication date: April 22, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Jong Ho Uhm, Balachandar Varatharajan, Willy Steve Ziminsky, Gilbert Otto Kraemer, Ertan Yilmaz, Benjamin Lacy, Christian Stevenson, David Felling
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Publication number: 20090012010Abstract: Methods and compounds effective in ameliorating conditions characterized by unwanted calcium channel activity, particularly unwanted N-type and/or T-type calcium channel activity are disclosed. Specifically, a series of compounds containing both an amino acid functionality and multiple aromatic rings are disclosed of the general formula (1) where X is benzhydryl, or an aromatic or heteroaromatic ring.Type: ApplicationFiled: May 14, 2008Publication date: January 8, 2009Applicant: Neuromed Phramaceuticals Ltd.Inventors: Robert Galemmo, JR., Richard Holland, Yanbing Ding, Lingyun Zhang, Gabriel Hum, Navjot Chahal, Joseph Duffy, Christian Stevenson, Andrew Ullman