Patents by Inventor James C. Withers

James C. Withers 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).

  • Patent number: 9249520
    Abstract: A system for purification of high value metals comprises an electrolytic cell in which an anode formed of a composite of a metal oxide of the metal of interest with carbon is electrochemically reduced in a molten salt electrolyte.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: February 2, 2016
    Assignee: MATERIALS & ELECTROCHEMICAL RESEARCH CORP.
    Inventors: James C. Withers, Raouf O. Loutfy
  • Patent number: 9150943
    Abstract: A method for producing a pure metal M or metal alloy MxNy, of interest, which comprises electrolyzing a molten salt electrolyte of an alkali-metal or alkaline-earth metal halide AX or AX2, with an anode formed of graphite or made of a composite of a metal oxide of the metal of interest and carbon, to discharge the alkali or alkaline-earth metal A, at the cathode, and to discharge nascent chlorine gas at the anode, whereby to produce a halide of the metal of interest MXn and/or NXn, and metallothermically reducing the metal halide MXn and/or NXn either separately or combined, with the alkali or alkaline-earth metal A, obtained cathodically to produce the metal M or the metal alloy MxNy of interest in particulate form.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: October 6, 2015
    Assignee: MATERIALS & ELECTROCHEMICAL RESEARCH CORP.
    Inventors: James C. Withers, Raouf O. Loutfy
  • Patent number: 8911529
    Abstract: Low cost spherical titanium and titanium powder alloy powder is produced by impinging a stream of an inert gas, such as argon, on the surface of a molten pool of titanium or sponge and alloying elements.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: December 16, 2014
    Assignee: Materials & Electrochemical Research Corp.
    Inventors: James C. Withers, Raouf O. Loutfy
  • Patent number: 8673453
    Abstract: Discontinuous diamond particulate containing metal matrix composites of high thermal conductivity and methods for producing these composites are provided. The manufacturing method includes producing a thin reaction formed and diffusion bonded functionally graded interactive SiC surface layer on diamond particles. The interactive surface converted SiC coated diamond particles are then disposed into a mold and between the particles and permitted to rapidly solidify under pressure. The surface conversion interactive SiC coating on the diamond particles achieves minimal interface thermal resistance with the metal matrix which translates into good mechanical strength and stiffness of the composites and facilitates near theoretical thermal conductivity levels to be attained in the composite. Secondary working of the diamond metal composite can be performed for producing thin sheet product.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: March 18, 2014
    Assignee: Nano Materials International Corporation
    Inventors: Sion M. Pickard, James C. Withers, Raouf O. Loutfy
  • Patent number: 8573128
    Abstract: A penetrator comprising a layered composite of at least one high density metal and at least one reactive metal material such as a reactive metal.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: November 5, 2013
    Assignee: Materials & Electrochemical Research Corp.
    Inventors: Roger S. Storm, Vladimir Shapovalov, James C. Withers, Raouf Loutfy
  • Publication number: 20130199397
    Abstract: A penetrator comprising a layered composite of at least one high density metal and at least one reactive material such as a reactive metal.
    Type: Application
    Filed: June 15, 2007
    Publication date: August 8, 2013
    Inventors: Roger S. STORM, Vladimir Shapovalov, James C. Withers, Raouf Loutfy, Joel House
  • Patent number: 8394168
    Abstract: A process for manufacturing Ti alloy structures using a SFFF manufacturing process with a welding torch as a high energy source, which comprises using as a feed a feed wire made from Ti sponge and alloying powders, or forming a Ti alloy in-situ in the melt.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: March 12, 2013
    Assignee: Materials & Electrochemical Research Corp.
    Inventors: James C. Withers, Roger S. Storm, Raouf O. Loutfy
  • Publication number: 20120272788
    Abstract: Low cost spherical titanium and titanium powder alloy powder is produced by impinging a stream of an inert gas, such as argon, on the surface of a molten pool of titanium or sponge and alloying elements.
    Type: Application
    Filed: April 13, 2012
    Publication date: November 1, 2012
    Inventors: James C. Withers, Raouf O. Loutfy
  • Patent number: 8203095
    Abstract: A method of material treatment in which the surface of a metal substrate is converted to a composite structure of the metal and its nitride or carbide utilizing a high temperature chemically active thermal plasma stream, and the product obtained from that method. The complex thermal plasma contains controllable additions of active gas, liquid or solid substances. The surface layer obtained is functionally graded to the substrate resulting in an excellent bond that resists delamination and spalling, and provides a significant increase in hardness, wear and erosion resistance, and corrosion resistance, and a decrease in coefficient of friction.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: June 19, 2012
    Assignee: Materials & Electrochemical Research Corp.
    Inventors: Roger S. Storm, Vladimir Shapovalov, James C. Withers, Raouf Loutfy
  • Publication number: 20120097887
    Abstract: Discontinuous diamond particulate containing metal matrix composites of high thermal conductivity and methods for producing these composites are provided. The manufacturing method includes producing a thin reaction formed and diffusion bonded functionally graded interactive SiC surface layer on diamond particles. The interactive surface converted SiC coated diamond particles are then disposed into a mold and between the particles and permitted to rapidly solidify under pressure. The surface conversion interactive SiC coating on the diamond particles achieves minimal interface thermal resistance with the metal matrix which translates into good mechanical strength and stiffness of the composites and facilitates near theoretical thermal conductivity levels to be attained in the composite. Secondary working of the diamond metal composite can be performed for producing thin sheet product.
    Type: Application
    Filed: October 26, 2011
    Publication date: April 26, 2012
    Inventors: Sion M. Pickard, James C. Withers, Raouf O. Loutfy
  • Publication number: 20120063071
    Abstract: A high thermal conductivity metal/diamond metal matrix composite made from diamond particles having thin layers of beta-SiC chemically bonded to the surfaces thereof, is utilized in combination with a machinable metal/carbonaceous material metal matrix composite in an integral metal matrix composite compound structure, to provide a machinable high thermal conductivity heat-dissipating substrate for electronic devices.
    Type: Application
    Filed: July 12, 2011
    Publication date: March 15, 2012
    Inventors: Raouf O. Loutfy, James C. Withers, Juan L. Sepulveda, Sharty Ibrahim, Kevin Loutfy
  • Patent number: 8066937
    Abstract: Discontinuous diamond particulate containing metal matrix composites of high thermal conductivity and methods for producing these composites are provided. The manufacturing method includes producing a thin reaction formed and diffusion bonded functionally graded interactive SiC surface layer on diamond particles. The interactive surface converted SiC coated diamond particles are then disposed into a mold and between the particles and permitted to rapidly solidify under pressure. The surface conversion interactive SiC coating on the diamond particles achieves minimal interface thermal resistance with the metal matrix which translates into good mechanical strength and stiffness of the composites and facilitates near theoretical thermal conductivity levels to be attained in the composite. Secondary working of the diamond metal composite can be performed for producing thin sheet product.
    Type: Grant
    Filed: October 8, 2007
    Date of Patent: November 29, 2011
    Assignee: Nano Materials International Corporation
    Inventors: Sion M. Pickard, James C. Withers, Raouf O. Loutfy
  • Patent number: 7988758
    Abstract: Discontinuous diamond particulate containing metal matrix composites of high thermal conductivity and methods for producing these composites are provided. The manufacturing method includes producing a thin reaction formed and diffusion bonded functionally graded interactive SiC surface layer on diamond particles. The interactive surface converted SiC coated diamond particles are then disposed into a mold and between the particles and permitted to rapidly solidify under pressure. The surface conversion interactive SiC coating on the diamond particles achieves minimal interface thermal resistance with the metal matrix which translates into good mechanical strength and stiffness of the composites and facilitates near theoretical thermal conductivity levels to be attained in the composite. Secondary working of the diamond metal composite can be performed for producing thin sheet product.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: August 2, 2011
    Assignee: Nano Materials International Corporation
    Inventors: Sion M. Pickard, James C. Withers, Raouf O. Loutfy
  • Patent number: 7985326
    Abstract: A system for purification of high value metals comprises an electrolytic cell in which an anode formed of a composite of a metal oxide of the metal of interest with carbon is electrochemically reduced in a molten salt electrolyte.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: July 26, 2011
    Assignee: Materials and Electrochemical Research Corp.
    Inventors: James C. Withers, Raouf O. Loutfy
  • Publication number: 20110151267
    Abstract: A cermet armor material for highly effective ballistic performance which is comprised of a layer of base metal in which is deposited a layer or layers of ceramic and a compatible metal such that the deposited metal in combination with the base metal forms a continuous matrix around the ceramic particles. The body has a structure which is continuously graded from a highest ceramic content at the outer surface (strike face) decreasing to zero within the base substrate, and contained no abrupt interfaces.
    Type: Application
    Filed: June 28, 2007
    Publication date: June 23, 2011
    Inventors: James C. Withers, Roger S. Storm, Vladimir Shapovalov, Raouf Loutfy
  • Patent number: 7955706
    Abstract: A cermet armor material for highly effective ballistic performance which is comprised of a layer of base metal in which is deposited a layer or layers of ceramic and a compatible metal such that the deposited metal in combination with the base metal forms a continuous matrix around the ceramic particles. The body has a structure which is continuously graded from a highest ceramic content at the outer surface (strike face) decreasing to zero within the base substrate, and contained no abrupt interfaces.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: June 7, 2011
    Assignee: Materials & Electrochemical Research Corp.
    Inventors: James C. Withers, Roger S. Storm, Vladimir Shapovalov, Raouf Loutfy
  • Patent number: 7914600
    Abstract: A method for production of titanium particles or other metal of interest by a metallothermic reduction reaction of TiCl4 or other metal chloride in a reaction zone which comprises conducting the reaction in a fluidized bed reaction zone, and recycling particles to the reaction zone to build up particle size.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: March 29, 2011
    Assignee: Materials & Electrochemical Research Corp.
    Inventors: James C. Withers, Raouf Loutfy
  • Patent number: 7910219
    Abstract: A cermet armor material for highly effective ballistic performance which is comprised of a layer of base metal in which is deposited a layer or layers of ceramic and a compatible metal such that the deposited metal in combination with the base metal forms a continuous matrix around the ceramic particles. The body has a structure which is continuously graded from a highest ceramic content at the outer surface (strike face) decreasing to zero within the base substrate, and contained no abrupt interfaces.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: March 22, 2011
    Assignee: Materials & Electrochemical Research Corp.
    Inventors: James C. Withers, Roger S. Storm, Vladimir Shapovalov, Loutfy Raouf
  • Patent number: 7794580
    Abstract: A method of winning a metal from its oxide ore by heating the ore in a partial vacuum or under an inert atmosphere in the presence of a reductant. The resulting product may be further reduced electrochemically to produce a purer metal.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: September 14, 2010
    Assignee: Materials & Electrochemical Research Corp.
    Inventors: James C. Withers, Raouf O. Loutfy
  • Patent number: 7721478
    Abstract: A fabrication technique is described for producing lighter weight and improved wear and erosion resistant gun barrels. The barrels are produced in an unconventional manner from the inside bore to the outside diameter of the barrel and combine a refractory metal, metal alloy, or ceramic composite inner liner with a metal matrix composite (MMC) or titanium or other suitable high strength, lightweight metal or metal alloy outer shell. A unique aspect of the invention is that there is a compositional gradation from the liner at the inside bore to the overwrap which extends to the outside diameter of the barrel. A process is also described to produce barrels with a refractory metal liner with improved wear and erosion resistance by depositing the refractory metal on the ID of a pre-fabricated barrel.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: May 25, 2010
    Assignee: Materials & Electrochemical Research Corp.
    Inventors: James C. Withers, Lori A. Bracamonte, Roger S. Storm, Sion M. Pickard, Raouf O. Loutfy