Patents by Inventor Phillip C. CHESSER
Phillip C. CHESSER 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: 11996206Abstract: A nuclear fuel cladding with improved thermomechanical properties is provided. The nuclear fuel cladding includes a double-walled construction having inner and outer hexagonal sidewalls. The inner sidewall and the outer sidewall are spaced apart from each other to form a cooling channel therebetween, and the inner sidewall surrounds a nuclear fuel and is spaced apart from the nuclear fuel by a small gap. Helical fins extend into the cooling channel to interconnect the inner sidewall and the outer sidewall. Resilient fingers extend toward the nuclear fuel through the small gap to comply with variations in the size of the nuclear fuel due to fabrication tolerances as well as thermal expansion and swelling of the nuclear fuel, for example UO2, when undergoing fission. The nuclear fuel cladding is formed according to an additive manufacturing process, for example laser powder bed fusion printing.Type: GrantFiled: April 25, 2022Date of Patent: May 28, 2024Assignee: UT-BATTELLE, LLCInventors: Christian M. Petrie, Phillip C. Chesser, Benjamin R. Betzler, Ryan R. Dehoff, Kevin G. Field, Kurt A. Terrani
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Patent number: 11630439Abstract: Toolpath generation for additive manufacturing systems involves operations on polygonal contours derived from a model for additively manufacturing a structure. One aspect involves modifying or creating a model to allow parts to be printed without starting and stopping the printing equipment by generating continuous toolpaths or toolpaths having a reduced number of isolated paths. Another aspect involves modifying a slicing engine to generate a continuous toolpath or toolpath having a reduced number of isolated paths based on a representation of an object to be additively manufactured. Another aspect involves selectively placing the gaps at alternating positions among the sliced layers to create a zippering effect.Type: GrantFiled: April 7, 2020Date of Patent: April 18, 2023Assignee: UT-Battelle, LLCInventors: Michael C. Borish, Alex C. Roschli, Brian K. Post, Phillip C. Chesser, Seokpum Kim
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Patent number: 11534977Abstract: A system and method for improving additive manufacturing, including additive manufacturing toolpaths, is provided. The system and method includes a toolpath generator that obtains initial toolpaths of an object, identifies isolated paths in the toolpaths, and adds bridge connections between neighboring isolated paths in each layer to improve the toolpaths. The bridge connections facilitate the continuous and non-stop deposition of each layer according to improved toolpaths during additive manufacture, which can reduce total deposition time and improve the resultant additive manufacture.Type: GrantFiled: January 23, 2020Date of Patent: December 27, 2022Assignee: UT-Battelle, LLCInventors: Seokpum Kim, Vlastimil Kune, Ahmed A. Hassen, John M. Lindahl, Brian K. Post, Alex C. Roschli, Phillip C. Chesser, Michael C. Borish, Gregory D. Dreifus, Lonnie J. Love, Craig A. Blue, Bentley T. Beard, II
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Publication number: 20220359094Abstract: A nuclear fuel cladding with improved thermomechanical properties is provided. The nuclear fuel cladding includes a double-walled construction having inner and outer hexagonal sidewalls. The inner sidewall and the outer sidewall are spaced apart from each other to form a cooling channel therebetween, and the inner sidewall surrounds a nuclear fuel and is spaced apart from the nuclear fuel by a small gap. Helical fins extend into the cooling channel to interconnect the inner sidewall and the outer sidewall. Resilient fingers extend toward the nuclear fuel through the small gap to comply with variations in the size of the nuclear fuel due to fabrication tolerances as well as thermal expansion and swelling of the nuclear fuel, for example UO2, when undergoing fission. The nuclear fuel cladding is formed according to an additive manufacturing process, for example laser powder bed fusion printing.Type: ApplicationFiled: April 25, 2022Publication date: November 10, 2022Inventors: Christian M. Petrie, Phillip C. Chesser, Benjamin R. Betzler, Ryan R. Dehoff, Kevin G. Field, Kurt A. Terrani
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Patent number: 11230032Abstract: A cable-driven additive manufacturing system includes an end effector configured for linear translation within a three-dimensional workspace, an aerial hoist suspending the end effector by at least one suspension cable, a plurality of base stations disposed below the aerial hoist, and control cables running from each of the base stations to the end effector.Type: GrantFiled: April 12, 2019Date of Patent: January 25, 2022Assignee: UT-Battelle, LLCInventors: Brian K. Post, Lonnie J. Love, Randall F. Lind, Phillip C. Chesser, Alex C. Roschli
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Patent number: 11097473Abstract: An additive manufacturing method that includes an extruder providing a supply of working material and a nozzle connected with respect to the extruder, the nozzle directing the working material to a deposit surface. A diverter valve is positioned between the extruder and the nozzle to direct the working material to an exhaust port away from the deposit surface under certain conditions.Type: GrantFiled: August 9, 2018Date of Patent: August 24, 2021Assignee: UT-BATTELLE, LLCInventors: Phillip C. Chesser, Brian K. Post, Matthew R. Sallas, Alex C. Roschli, Randall F. Lind, Lonnie J. Love
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Publication number: 20210055710Abstract: Toolpath generation for additive manufacturing systems involves operations on polygonal contours derived from a model for additively manufacturing a structure. One aspect involves modifying or creating a model to allow parts to be printed without starting and stopping the printing equipment by generating continuous toolpaths or toolpaths having a reduced number of isolated paths. Another aspect involves modifying a slicing engine to generate a continuous toolpath or toolpath having a reduced number of isolated paths based on a representation of an object to be additively manufactured. Another aspect involves selectively placing the gaps at alternating positions among the sliced layers to create a zippering effect.Type: ApplicationFiled: April 7, 2020Publication date: February 25, 2021Inventors: Michael C. Borish, Alex C. Roschli, Brian K. Post, Phillip C. Chesser, Seokpum Kim
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Patent number: 10780612Abstract: A method 100 for generating and dispensing a powdered 60 release agent during an additive manufacturing build is disclosed. A solid body 28 of release agent material is ground insitu by a grinder 50 and dispensed on a surface of the part 72 to prevent adhesion of an adjacent layer of a base material 70. With the addition of the powdered 60 release agent, a support structure 76 is easily separated from the base material 70 when the part 72 is complete, saving time and preventing the part 72 from sustaining unintentional damage. Since no powdered 60 release agent is actually loaded or stored in the apparatus 20, the potential for spillage, waste, inconsistent dispensing, inadvertent dispensing, and clumping due to humidity is eliminated.Type: GrantFiled: August 21, 2018Date of Patent: September 22, 2020Assignee: UT-Battelle, LLCInventors: Randall F. Lind, Brian K. Post, Phillip C. Chesser, Andrew P. Reis, Alex C. Roschli
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Publication number: 20200230888Abstract: A system and method for improving additive manufacturing, including additive manufacturing toolpaths, is provided. The system and method includes a toolpath generator that obtains initial toolpaths of an object, identifies isolated paths in the toolpaths, and adds bridge connections between neighboring isolated paths in each layer to improve the toolpaths. The bridge connections facilitate the continuous and non-stop deposition of each layer according to improved toolpaths during additive manufacture, which can reduce total deposition time and improve the resultant additive manufacture.Type: ApplicationFiled: January 23, 2020Publication date: July 23, 2020Inventors: Seokpum Kim, Vlastimil Kunc, Ahmed A. Hassen, John M. Lindahl, Brian K. Post, Alex C. Roschli, Phillip C. Chesser, Michael C. Borish, Gregory D. Dreifus, Lonnie J. Love, Craig A. Blue, Bentley T. Beard, II
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Patent number: 10694590Abstract: A method and apparatus for additive manufacturing that includes a material guide for directing a supply of working material and a plurality of rollers for advancing the working material. An electromagnetic heater is provided to heat and deposit molten working material as a new supply of working material is forced through the material guide.Type: GrantFiled: April 11, 2017Date of Patent: June 23, 2020Assignee: UT-BATTELLE, LLCInventors: Orlando Rios, William G. Carter, Zachary C. Sims, Lonnie J. Love, Phillip C. Chesser
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Publication number: 20190315016Abstract: A cable-driven additive manufacturing system includes an end effector configured for linear translation within a three-dimensional workspace, an aerial hoist suspending the end effector by at least one suspension cable, a plurality of base stations disposed below the aerial hoist, and control cables running from each of the base stations to the end effector.Type: ApplicationFiled: April 12, 2019Publication date: October 17, 2019Inventors: Brian K. Post, Lonnie J. Love, Randall F. Lind, Phillip C. Chesser, Alex C. Roschli
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Publication number: 20190047219Abstract: An additive manufacturing method that includes an extruder providing a supply of working material and a nozzle connected with respect to the extruder, the nozzle directing the working material to a deposit surface. A diverter valve is positioned between the extruder and the nozzle to direct the working material to an exhaust port away from the deposit surface under certain conditions.Type: ApplicationFiled: August 9, 2018Publication date: February 14, 2019Applicant: UT-BATTELLE, LLCInventors: Phillip C. CHESSER, Brian K. POST, Matthew R. SALLAS, Alex C. ROSCHLI, Randall F. LIND, Lonnie J. Love
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Publication number: 20180354164Abstract: An apparatus 20 and a method 100 for generating and dispensing a powdered 60 release agent during an additive manufacturing build is disclosed. A solid body 28 of release agent material is ground insitu by a grinder 50 and dispensed on a surface of the part 72 to prevent adhesion of an adjacent layer of a base material 70. With the addition of the powdered 60 release agent, a support structure 76 is easily separated from the base material 70 when the part 72 is complete, saving time and preventing the part 72 from sustaining unintentional damage. Since no powdered 60 release agent is actually loaded or stored in the apparatus 20, the potential for spillage, waste, inconsistent dispensing, inadvertent dispensing, and clumping due to humidity is eliminated.Type: ApplicationFiled: August 21, 2018Publication date: December 13, 2018Applicant: U T-Battelle, LLCInventors: Randall F. Lind, Brian K. Post, Phillip C. Chesser, Andrew P. Reis, Alex C. Roschli
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Patent number: 10105876Abstract: An apparatus 20 and a method 100 for generating and dispensing a powdered 60 release agent during an additive manufacturing build is disclosed. A solid body 28 of release agent material is ground insitu by a grinder 50 and dispensed on a surface of the part 72 to prevent adhesion of an adjacent layer of a base material 70. With the addition of the powdered 60 release agent, a support structure 76 is easily separated from the base material 70 when the part 72 is complete, saving time and preventing the part 72 from sustaining unintentional damage. Since no powdered 60 release agent is actually loaded or stored in the apparatus 20, the potential for spillage, waste, inconsistent dispensing, inadvertent dispensing, and clumping due to humidity is eliminated.Type: GrantFiled: December 7, 2015Date of Patent: October 23, 2018Assignee: UT-Battelle, LLCInventors: Randall F. Lind, Brian K Post, Phillip C. Chesser, Andrew P. Reis, Alex C. Roschli
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Publication number: 20180027615Abstract: A method and apparatus for additive manufacturing that includes a material guide for directing a supply of working material and a plurality of rollers for advancing the working material. An electromagnetic heater is provided to heat and deposit molten working material as a new supply of working material is forced through the material guide.Type: ApplicationFiled: April 11, 2017Publication date: January 25, 2018Applicant: UT-BATTELLE,LLCInventors: Orlando RIOS, William G. CARTER, Zachary C. SIMS, Lonnie J. LOVE, Phillip C. CHESSER