Patents Examined by George P. Wyszomierski
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Patent number: 10173265Abstract: A method for producing small metal alloy nanoparticles of a first metal and a second metal, comprising: mixing, at room temperature in air, a first aqueous solution of first and second metal nanoparticle precursor species in a first molar ratio of the first metal to the second metal; mixing a separate organic ligand into the first aqueous solution; adding a reducing agent to the first aqueous solution; and aging the first aqueous solution for a first period. The method may further comprise characterizing by photoluminescence or other property the metal alloy nanoparticles from the first aqueous solution and/or from a second aqueous solution of first and second metal nanoparticle precursor species in a second molar ratio of the first metal to the second metal.Type: GrantFiled: March 24, 2014Date of Patent: January 8, 2019Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Jill Erin Millstone, Christopher Michael Andolina, Andrew Craik Dewar
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Patent number: 10087504Abstract: A method for preparing semiconductor nanocrystals comprising indium arsenide is disclosed.Type: GrantFiled: June 13, 2016Date of Patent: October 2, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Justin W. Kamplain, Keeve Gurkin, Peter Allen
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Patent number: 10072312Abstract: Method of operating a blast furnace installation comprising a top gas recycle blast furnace and hot stones, whereby a hydrocarbon containing fuel is transformed into a transformed gas stream consisting mainly of CO and H2 and substantially devoid of hydrocarbon, whereby a low-heating-value gaseous fuel is generated comprising a mixture of the transformed gas with a portion of the CO2-rich tail gas obtained by decarbonatation of the blast furnace gas, and whereby the low-heating-value fuel is used to heat the hot furnace gas is heated before being injected into the blast-furnace.Type: GrantFiled: November 27, 2014Date of Patent: September 11, 2018Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventor: Michael Grant
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Patent number: 10065244Abstract: The present invention discloses a method for fabricating a porous spherical iron-based alloy powder, a powder thereof and a sintered body thereof. The method comprises steps: mixing an iron oxide powder and an alloying powder to form a mixed powder; spray-granulating the mixed powder to form a spherical spray-granulated powder; and placing the spherical spray-granulated powder in a reducing environment and heating it to a temperature of lower than 700° C. to obtain a porous spherical iron-based alloy powder having high flowability, high compressibility, superior sinterability and low cost.Type: GrantFiled: April 18, 2016Date of Patent: September 4, 2018Assignee: Taiwan Powder Technologies Co., Ltd.Inventors: Kuen-Shyang Hwang, Ming-Wei Wu, Yang-Liang Fan
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Patent number: 10029304Abstract: The present disclosure is directed to a method of physically separating and electrically isolating the chamber where the ohmic heating of the feedstock occurs by delivering current through the electrodes (heating barrel), from the chamber where the feedstock deformation and flow through the runner takes place by the motion of the plungers (forming barrel). The method also includes transferring the feedstock from the heating barrel to the forming barrel between the heating and the forming processes at a high enough rate such that negligible cooling and no substantial crystallization of the feedstock occurs during the transfer.Type: GrantFiled: June 18, 2015Date of Patent: July 24, 2018Assignees: Glassimetal Technology, Inc., Apple Inc.Inventors: Joseph P. Schramm, Marios D. Demetriou, William L. Johnson
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Patent number: 10022791Abstract: Embodiments disclosed herein relate to a method for synthesizing self-assembling nanoparticles with defined plasmon resonances. More particularly, certain embodiments disclosed herein relate to an improved method for synthesizing self-assembling gold nanoparticles by dialyzing samples during the self-assembly process or in presence of a surface to reduce certain subpopulations.Type: GrantFiled: November 13, 2015Date of Patent: July 17, 2018Assignee: University of Louisville Research Foundation, Inc.Inventors: Dhruvinkumar Patel, Kurtis James, Martin G. O'Toole, Robert S. Keynton
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Patent number: 9999926Abstract: A method for manufacturing high aspect ratio silver nanowires is provided, wherein a total glycol concentration is <0.001 wt % at all times.Type: GrantFiled: October 13, 2015Date of Patent: June 19, 2018Assignee: Dow Global Technologies LLCInventors: Patrick T. McGough, Janet M. Goss, George J. Frycek, George L. Athens, Wei Wang, Jonathan D. Lunn, Robin P. Ziebarth, Richard A. Patyk
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Patent number: 10000389Abstract: A method of controlling frothing during atmospheric or substantially atmospheric leaching of a metal sulfide is disclosed. In some embodiments, the method may comprise the steps of (a) producing a metal sulfide concentrate via flotation; (b) producing a tailings stream via flotation; and, (c) diverting a portion or all of said produced tailings stream to an atmospheric or substantially atmospheric sulfide leach circuit. A metal recovery flowsheet is also disclosed. In some embodiments, the metal recovery flowsheet may comprise a unit operation comprising: (a) a sulfide concentrator comprising a flotation circuit, the flotation circuit producing a metal sulfide concentrate stream, and a tailings stream; and, (b) an atmospheric or substantially atmospheric metal sulfide leach circuit. The sulfide concentrator may be operatively connected to the atmospheric or substantially atmospheric metal sulfide leach circuit via both of said metal sulfide concentrate stream, and said tailings stream.Type: GrantFiled: August 27, 2015Date of Patent: June 19, 2018Assignee: FLSMIDTH A/SInventors: David J. Chaiko, Frank Baczek, Tom Walters, Sarah (Sally) Rocks, Gary Roy, Carlos Eyzaguirre
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Patent number: 7378052Abstract: A method and apparatus for producing products from a powered base material, by means of so-called free form fabrication, wherein the powder granules are bound together into a solid product.Type: GrantFiled: December 16, 2002Date of Patent: May 27, 2008Assignee: FCUBIC ABInventor: Urban Harryson
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Patent number: 7371295Abstract: A shape memory alloy comprises Co, Ni and Al with a two-phase structure comprising a ?-phase having a B2 structure and a ?-phase having an fcc structure, at least 40% by area of crystal grain boundaries of the ?-phase being occupied by the ?-phase. The shape memory alloy can be produced by a first heat treatment step comprising heating at 1200 to 1350° C. for 0.1 to 50 hours and cooling at 0.1 to 1000° C./minute, and a second heat treatment step comprising heating at 1000 to 1320° C. for 0.1 to 50 hours and cooling at 10 to 10000° C./minute.Type: GrantFiled: March 18, 2004Date of Patent: May 13, 2008Assignees: Honda Motor Co., Ltd., National Institute of Advanced Industrial Science & TechnologyInventors: Katsunari Oikawa, Kiyohito Ishida, Ryosuke Kainuma, Yuuki Tanaka, Masahiro Ohta, Toru Sukigara
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Patent number: 7368022Abstract: Bulk amorphous alloys based on a ternary Ni—Nb—Sn alloy system, and the extension of this ternary system to higher order alloys by the addition of one or more alloying elements, methods of casting such alloys and articles made of such alloys are provided.Type: GrantFiled: July 22, 2003Date of Patent: May 6, 2008Assignee: California Institute of TechnologyInventors: Haein Choi Yim, Donghua Xu, William L. Johnson
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Patent number: 7361300Abstract: Methods are provided for making a porous filter that is useful in polymer melt spinning. The methods include pressing particles, such as a metal powder, to form a filter having a filter body integrally formed with a top cap and a bottom cap. The filter body and caps are formed as a single component or, alternatively, are formed as two or three separate parts that are fitted and pressed together to form a single component having blind inlet and outlet cavities. After pressing, the component is sintered to form the porous filter. The particles are pressed and cohere to form the caps and filter body without the use of a polymeric binder, and the inlet and outlet cavities are formed substantially without machining.Type: GrantFiled: August 12, 2003Date of Patent: April 22, 2008Assignee: MOTT CorporationInventors: William R. Kelly, Larry Moore
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Patent number: 7354472Abstract: A method of producing a refractory metal powder by (A) combining (i) an oxide particle component and (ii) a reducing agent; (B) forming a substantially uniform mixture of (i) and (ii); (C) continuously feeding the mixture into a furnace; (D) igniting the mixture at a reaction zone and starting a reaction that is sufficiently exothermic to form a high temperature flash; (E) starting a reaction that is sufficiently exothermic to form a high temperature self-sustaining flash; and (F) producing a free-flowing reduced oxide powder.Type: GrantFiled: June 21, 2004Date of Patent: April 8, 2008Assignee: H.C. Starck Inc.Inventors: Leonid Natan Shekhter, Edward V. McCormick, Leah F. Simkins, Edward K. Schiele
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Patent number: 7351272Abstract: A method of controlling the size and morphology of powder made by the subsurface injection of a halide vapor into a liquid metal is disclosed. A reaction zone is established and the temperature thereof or the time the powder remains therein is controlled to change powder characteristics.Type: GrantFiled: September 3, 2003Date of Patent: April 1, 2008Assignee: International Titanium Powder, LLCInventors: Donn Reynolds Armstrong, Richard Paul Anderson, Lance E. Jacobsen
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Patent number: 7344584Abstract: A process for the production of extra fine spherical metal powders by chemical vapor deposition and dissolution techniques, including metal carbonyls, wherein the metal containing process gas is propelled upwardly through a heated reactor. By employing an upward gas flow as opposed to the conventional downward gas flow, a closer approximation of theoretical plug-flow velocity profiles are achieved thusly resulting in a desirably narrower size particle distribution obviating or reducing the need for subsequent classification techniques.Type: GrantFiled: September 3, 2004Date of Patent: March 18, 2008Assignee: Inco LimitedInventors: Kenneth Stark Coley, Armen Markarian, Shadi Saberi, Randy Shaubel, Rinaldo A. Stefan, Lloyd Matt Timberg, Eric Bain Wasmund
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Patent number: 7311786Abstract: A method for passivating sulfidic iron-containing rock comprising: contacting sulfidic iron-containing rock with a magnesium-containing substance, a manganese-containing substance, and a calcium-containing substance; and adjusting the pH of the system to below about 11, is provided. The method can be used to prevent acid rock drainage of metal-bearing rocks or to produce a pretreated ore or rock which can be contacted with a lixiviating agent to extract metals from the pretreated ore or rock.Type: GrantFiled: May 6, 2004Date of Patent: December 25, 2007Assignee: University and Community College System of Nevada on Behalf of The University of Nevada, RenoInventors: Maurice C. Fuerstenau, Manoranjan Misra, Stefan Beck
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Patent number: 7311789Abstract: Dual phase steel sheet is made using a time/temperature cycle including a soak at about AC1+45° F. to AC1+135° F. and a hold at 850-940F, where the steel has the composition in weight percent, carbon: 0.02-0.20; aluminum: 0.010-0.150; titanium: 0.01 max; silicon: 0.5 max; phosphorous: 0.060 max; sulfur: 0.030 max; manganese: 0.8-2.40; chromium: 0.03-1.50; molybdenum: 0.03-1.50; with the provisos that the amounts of manganese, chromium and molybdenum have the relationship: (Mn+6Cr+10 Mo)=at least 3.5%. The sheet is preferably in the form of a strip suitable for coating in a continuous galvanizing or galvannealing line, and the product is predominantly ferrite and martensite. The strip may be galvanized or galvannealed at a temperature within thirty degrees F. of the temperature of the bath.Type: GrantFiled: May 17, 2004Date of Patent: December 25, 2007Assignee: United States Steel CorporationInventor: David Paul Hoydick
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Patent number: 7306683Abstract: The present invention relates generally to a shape memory and/or super-elastic material, such as a nickel titanium alloy. Additionally or alternatively, the present invention relates to a super-elastic or pseudo-elastic material that has an initial transition temperature Af above a body temperature. The shape memory material can have a super-elasticity or pseudo-elasticity property at a temperature below the initial transition temperature Af of the material. For example, the shape memory material can have its workable temperature for producing super-elasticity or pseudo-elasticity of about 0° C. to 15° C. below the initial transition temperature Af. The shape memory material can be malleable at a room temperature, and become super-elastic or pseudo-elastic at a body temperature. In addition, the present invention relates to a method of making a shape memory or a super-elastic material.Type: GrantFiled: April 19, 2004Date of Patent: December 11, 2007Assignees: Versitech Limited, The City University of Hong KongInventors: Kenneth Man Chee Cheung, Kelvin Wai Kwok Yeung, William Weijia Lu, Chl Yuen Chung
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Patent number: 7300529Abstract: High-strength, beryllium-free moulded bodies made from zirconium alloys which may be plastically deformed comprise a material essentially corresponding to the following formula in composition: Zra(E1)b(E2)c(E3)d(E4)e, where E1=one or several of Nb, Ta, Mo, Cr, W, Ti, V, Hf and Y, E2=one or several of Cu, Au, Ag, Pd and Pt, E3=one or several of Ni, Co, Fe, Zn and Mn, E4=one or several of AI, Ga, Si, P, C, B, Sn, Pb and Sb, a=100?(b+c+d+e), b=5 to 15, c=5 to 15, d=0 to 15 and e=5 to 15 (a, b, c, d, e in atom %). The moulded body essentially comprises a homogeneous, microstructural structure which is a glass-like or nano-crystalline matrix with a ductile, dendritic, cubic body-centered phase embedded therein.Type: GrantFiled: August 12, 2002Date of Patent: November 27, 2007Assignee: Leibniz-Institut Fuer Festkoerper-und Werkstoffforschung Dresden e.V.Inventors: Uta Kuehn, Juergen Eckert, Ludwig Schultz
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Patent number: 7300623Abstract: A contact material which provides improved wear resistance as well as reduced adhesion utilizing the features of an intermetallic compound having an ordered phase, with the intention of (i) improving the seizure resistance and/or wear resistance of an implement bearing which slides under low-speed, high-surface-pressure conditions and is susceptible to lubricant starvation; (ii) preventing abnormal noises; and (iii) achieving prolonged greasing intervals. The contact material contains 10% by volume or more a metallic alloy phase having such a composition range that causes an order-disorder transition. The metallic alloy phase is a Fe base alloy phase containing one or more elements selected from the group consisting of Al, Si, Co and Ni.Type: GrantFiled: December 17, 2003Date of Patent: November 27, 2007Assignee: Komatsu LtdInventors: Takemori Takayama, Yoshikiyo Tanaka, Tetsuo Onishi