Patents by Inventor Corson L. CRAMER
Corson L. CRAMER 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: 20240149490Abstract: A method of fabricating a refractory metal ceramic matrix interpenetrating phase harsh environment capable composite is provided. The method includes forming a reinforcing phase by additive manufacturing and introducing a matrix material to the reinforcing phase. The step of introducing the matrix material may be performed by additive manufacturing or a densification process. The reinforcing phase may be a lattice formed of metal or a ceramic, and the matrix material may be a ceramic or a metal. Alternatively, the reinforcing phase formed by additive manufacturing is a laminate layer, and the matrix material introduced to the reinforcing phase is a laminate layer deposited on the reinforcing phase by additive manufacturing in a plurality of alternating layers. A refractory metal ceramic matrix composite is also disclosed. The refractory metal ceramic matrix composite includes a lattice formed by additive manufacturing, and a matrix material deposited in the lattice.Type: ApplicationFiled: May 2, 2023Publication date: May 9, 2024Inventors: David Mitchell, Trevor Aguirre, Corson L. Cramer, Richard A. Lowden
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Patent number: 11898226Abstract: A method for additive manufacturing of a composite object containing a bonded network of boron carbide particles and aluminum occupying spaces between boron carbide particles, the method comprising: (i) producing a porous preform constructed of boron carbide by an additive manufacturing process in which particles of boron carbide are bonded together; and (ii) infiltrating molten aluminum, at a temperature of 1000-1400° C., into pores of said porous preform to produce said composite object constructed of boron carbide particles within an aluminum matrix, wherein the boron carbide is present in the composite object in an amount of 30-70 wt. %. The resulting composite material is also herein described.Type: GrantFiled: February 25, 2020Date of Patent: February 13, 2024Assignee: UT-Battelle, LLCInventors: Corson L. Cramer, James O. Kiggans, Jr., Amelia M. Elliott, David C. Anderson
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Patent number: 11633789Abstract: A method for fabricating heat exchangers using additive manufacturing technologies. Additive manufacturing enables the manufacture of heat exchangers with complex geometries and/or with internal and external integral surface features. Additive manufacture also facilitates the manufacture of heat exchangers with regional variations, such as changes in size, shape and surface features. In one embodiment, the present invention provides a heat exchanger with a helicoidal shape that provides axial elastic compliance. In one embodiment, the internal channel of the heat exchanger varies along its length. The internal channel may have a cross-sectional area that increases progressively from one end to the other. In one embodiment, the external shape of the tubular structure may be non-circular to optimize heat transfer with an external heat transfer fluid. In one embodiment, the present invention provides a heat pipe with an internal wicking structure formed as an integral part of the additive manufacturing process.Type: GrantFiled: February 9, 2021Date of Patent: April 25, 2023Assignee: UT-Battelle, LLCInventors: Edgar Lara-Curzio, Corson L. Cramer, Amelia M. Elliott, Brian A. Fricke, Prashant K. Jain, Richard R. Lowden, Kashif Nawaz, Vivek M. Rao, Matthew J. Sandlin
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Patent number: 11364654Abstract: A method for indirect additive manufacturing of an object constructed of boron carbide, silicon carbide, and free silicon, comprising: (i) producing a porous preform constructed of boron carbide and silicon carbide by an indirect ceramic additive manufacturing (ICAM) process in which particles of a powder mixture become bonded together with an organic binder, wherein the powder mixture comprises: a) boron carbide particles, and b) silicon carbide particles, wherein at least 80 vol % of the silicon carbide particles are larger than the boron carbide particles; and wherein the boron carbide and silicon carbide particles are each included in an amount of 40-60 wt. % of the powder mixture, provided that the foregoing amounts sum to at least 95 wt. %; (ii) subjecting the porous preform to a temperature of 500-900° C. to volatilize the organic binder; and (iii) infiltrating molten silicon into pores of the porous preform to produce the object.Type: GrantFiled: December 17, 2019Date of Patent: June 21, 2022Assignee: UT-Battelle, LLCInventors: Corson L. Cramer, Richard A. Lowden, Kinga A. Unocic, Jacob W. McMurray, Amelia M. Elliott
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Patent number: 11090726Abstract: An apparatus and device for building an article by additive manufacturing or 3-D printing. The method includes feeding a supply of particulate slurry to and through a nozzle, such as including an integrated pump, to form a plurality of beads and layers of the slurry on a deposition surface, and ultimately forming a desirable article from the layers of deposited material. The liquid phase of the slurry is desirably removed by heat, and the deposited layers can be sintered or otherwise fused as needed.Type: GrantFiled: October 5, 2018Date of Patent: August 17, 2021Assignee: UT-BATTELLE, LLCInventors: James W. Klett, Amelia M. Elliott, Makayla S. Edwards, Kelsey L. Hedrick, Ryan K. Duncan, Alex G. Hessler, Corson L. Cramer
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Publication number: 20210245246Abstract: A method for fabricating heat exchangers using additive manufacturing technologies. Additive manufacturing enables the manufacture of heat exchangers with complex geometries and/or with internal and external integral surface features. Additive manufacture also facilitates the manufacture of heat exchangers with regional variations, such as changes in size, shape and surface features. In one embodiment, the present invention provides a heat exchanger with a helicoidal shape that provides axial elastic compliance. In one embodiment, the internal channel of the heat exchanger varies along its length. The internal channel may have a cross-sectional area that increases progressively from one end to the other. In one embodiment, the external shape of the tubular structure may be non-circular to optimize heat transfer with an external heat transfer fluid. In one embodiment, the present invention provides a heat pipe with an internal wicking structure formed as an integral part of the additive manufacturing process.Type: ApplicationFiled: February 9, 2021Publication date: August 12, 2021Inventors: Edgar Lara-Curzio, Corson L. Cramer, Amelia M. Elliott, Brian A. Fricke, Prashant K. Jain, Richard R. Lowden, Kashif Nawaz, Vivek M. Rao, Matthew J. Sandlin
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Publication number: 20210057149Abstract: A bonded soft magnet object comprising bonded soft magnetic particles of an iron-containing alloy having a soft magnet characteristic, wherein the bonded soft magnetic particles have a particle size of at least 200 nm and up to 100 microns. Also described herein is a method for producing the bonded soft magnet by indirect additive manufacturing (IAM), such as by: (i) producing a soft magnet preform by bonding soft magnetic particles with an organic binder, wherein the magnetic particles have an iron-containing alloy composition with a soft magnet characteristic, and wherein the particles of the soft magnet material have a particle size of at least 200 nm and up to 100 microns; (ii) subjecting the preform to an elevated temperature sufficient to remove the organic binder to produce a binder-free preform; and (iii) sintering the binder-free preform at a further elevated temperature to produce the bonded soft magnet.Type: ApplicationFiled: August 21, 2020Publication date: February 25, 2021Inventors: Mariappan Parans Paranthaman, Corson L. Cramer, Peeyush Nandwana, Amelia M. Elliott, Chins Chinnasamy
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Publication number: 20200269318Abstract: A method for additive manufacturing of a composite object containing a bonded network of boron carbide particles and aluminum occupying spaces between boron carbide particles, the method comprising: (i) producing a porous preform constructed of boron carbide by an additive manufacturing process in which particles of boron carbide are bonded together; and (ii) infiltrating molten aluminum, at a temperature of 1000-1400° C., into pores of said porous preform to produce said composite object constructed of boron carbide particles within an aluminum matrix, wherein the boron carbide is present in the composite object in an amount of 30-70 wt. %. The resulting composite material is also herein described.Type: ApplicationFiled: February 25, 2020Publication date: August 27, 2020Inventors: Corson L. Cramer, James O. Kiggans, JR., Amelia M. Elliott, David C. Anderson
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Publication number: 20200189145Abstract: A method for indirect additive manufacturing of an object constructed of boron carbide, silicon carbide, and free silicon, comprising: (i) producing a porous preform constructed of boron carbide and silicon carbide by an indirect ceramic additive manufacturing (ICAM) process in which particles of a powder mixture become bonded together with an organic binder, wherein the powder mixture comprises: a) boron carbide particles, and b) silicon carbide particles, wherein at least 80 vol % of the silicon carbide particles are larger than the boron carbide particles; and wherein the boron carbide and silicon carbide particles are each included in an amount of 40-60 wt. % of the powder mixture, provided that the foregoing amounts sum to at least 95 wt. %; (ii) subjecting the porous preform to a temperature of 500-900° C. to volatilize the organic binder; and (iii) infiltrating molten silicon into pores of the porous preform to produce the object.Type: ApplicationFiled: December 17, 2019Publication date: June 18, 2020Inventors: Corson L. Cramer, Richard A. Lowden, Kinga A. Unocic, Jacob W. McMurray, Amelia M. Elliott
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Publication number: 20190105710Abstract: An apparatus and device for building an article by additive manufacturing or 3-D printing. The method includes feeding a supply of particulate slurry to and through a nozzle, such as including an integrated pump, to form a plurality of beads and layers of the slurry on a deposition surface, and ultimately forming a desirable article from the layers of deposited material. The liquid phase of the slurry is desirably removed by heat, and the deposited layers can be sintered or otherwise fused as needed.Type: ApplicationFiled: October 5, 2018Publication date: April 11, 2019Applicant: UT-BATTELLE, LLCInventors: James W. Klett, Amelia M. ELLIOTT, Makayla S. EDWARDS, Kelsey L. HEDRICK, Ryan K. DUNCAN, Alex G. HESSLER, Corson L. CRAMER