Patents Examined by Keith D. Hendricks
  • Patent number: 10994335
    Abstract: A selective solidification apparatus includes a build chamber, a build platform lowerable in the build chamber, a wiper for spreading powder material across the build platform to form successive powder layers of a powder bed, an energy beam unit for generating an energy beam for consolidating the powder material, a scanner for directing and focusing the energy beam onto each powder layer and a processor for controlling the scanner. The processor is arranged to control the scanner to scan the energy beam across the powder bed to consolidate powder material either side of the wiper when the wiper is moving across the powder bed and to scan the energy beam across at least one of the powder layers during two or more strokes of the wiper across the powder bed.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: May 4, 2021
    Assignee: RENISHAW PLC
    Inventors: Ceri Brown, Geoffrey McFarland
  • Patent number: 10982299
    Abstract: A method for comprehensively processing noble lead provided and utilizes two instances of vacuum distillation to realize an open circuit of arsenic, lead, antimony and bismuth and the high-efficiency enrichment of precious metals of gold and silver, and can obtain elemental arsenic, a lead-bismuth-antimony alloy, a silver alloy and a copper alloy, respectively. The lead-bismuth-antimony alloy, the silver alloy and the copper alloy are processed by oxidation refining, electrorefining and chlorination refining to obtain refined lead, refined antimony, antimony trioxide, electrolytic silver and electrolytic copper, and to realize gold enrichment. The entire process has advantages of high metal direct yield, low energy consumption, short flow chart, simple equipment, etc., and vacuum distillation belongs to a physical process in which the alloy can be separated only by means of the difference in saturated vapor pressure between the metals, without generation of wastewater, waste gas and waste residue.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: April 20, 2021
    Assignees: Kunming University of Science and Technology, Kunming Dingbang Technology Co., Ltd.
    Inventors: Bin Yang, Dachun Liu, Wenlong Jiang, Guozheng Zha, Baoqiang Xu, Weiping Dai, Yifu Li, Qingchun Yu, Xiumin Chen, Hongwei Yang, Yang Tian, Yong Deng, Fei Wang, Heng Xiong, Jia Yang, Tao Qu, Lingxin Kong
  • Patent number: 10967464
    Abstract: A solder alloy having an alloy composition consisting of, in mass %, Ag: 1% to 4%, Cu: 0.5% to 0.8%, Bi: more than 4.8% and 5.5% or less. Sb: more than 1.5% and 5.5% or less, Ni: 0.01% or more and less than 0.1%, Co: more than 0.001% and 0.1% or less, the balance being Sn. The alloy composition satisfies the following three relationships: 0.020%?Ni+Co?0.105%; 9.1%?Sb+Bi?10.4%; and 4.05×10?3?(Ni+Co)/(Bi+Sb)?1.00×10?2, where Ni, Co, Bi, and Sb each represent a content (mass %) thereof in the solder alloy.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: April 6, 2021
    Inventors: Naoko Izumita, Shunsaku Yoshikawa, Yoshie Tachibana
  • Patent number: 10961613
    Abstract: A method for controlling the microstructure and texture of tantalum is described. The method includes a first forging step for performing upset forging and come-back forging on a tantalum billet multiple times in different directions, the upset forging performed to press two surfaces of the tantalum billet in order to make the two surfaces close to each other and the come-back forging performed to restore the tantalum billet to a rectangular prism shape; and a second forging step for performing wedge forging and come-back forging on the tantalum billet multiple times in different directions, the wedge forging performed to press two edges located in a diagonal direction of the tantalum billet and parallel to each other in order to make the two edges close to each other, and the come-back forging performed to restore the tantalum billet to the rectangular prism shape.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: March 30, 2021
    Inventors: Seong Lee, Seongho Yang, Sungho Lee, Hyotae Jeong, Yuyeon Jo
  • Patent number: 10919083
    Abstract: A process for manufacturing an aluminum alloy wheel includes: casting, de-flashing, soaking, spinning, thermal treatment, de-gating, X-ray and machining. During the casting, a casting mold is cooled with water, and a cast blank is produced from carrying out the casting. The de-flashing includes removing flashes of the cast blank at a rim of the cast blank with a de-flashing device. The soaking includes reheating on the cast blank that has been de-flashed. The spinning includes an adaptive spinning mold. The thermal treatment includes direct solution treatment and aging on the cast blank in a thermal treatment furnace after spinning.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: February 16, 2021
    Assignee: CITIC Dicastal CO., LTD.
    Inventors: Zuo Xu, Haiping Chang, Lijuan Zhang, Shiwen Xu, Changhai Li, Zhihua Zhu
  • Patent number: 10877144
    Abstract: A device for determining the topography of the burden surface in a shaft furnace (10), the device comprising a radar device (20) that scans the burden surface (18) and has an antenna device (22) arranged in the area of a furnace cover (13), the antenna device being arranged on an axis of rotation (24) that is inclined in relation to a vertical axis (15) of the shaft furnace at an angle of inclination ? and being rotatable about the axis of rotation by means of a drive device in such a manner that a radar fan beam (28) formed by the emitted radar radiation of the antenna device is incident upon the burden surface along a profile line p and sweeps across the burden surface as the antenna device rotates.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: December 29, 2020
    Inventors: Hans-Uwe Morgenstern, Ulrich Oster, Kevin Viktor, Jean-Francois Stumper
  • Patent number: 10861655
    Abstract: A method for producing a contact material on the basis of silver-tin oxide or silver-zinc oxide is disclosed. Tin oxide particles and/or zinc oxide particles are mixed with a powder of a metal different from silver. The mixture is heated beyond the melting point of the metal powder such that the tin oxide particles and/or zinc oxide particles are wetted with liquid metal. The mixture is exposed to an atmosphere containing oxygen and the metal is thereby oxidized. Thereafter, the mixture product formed by the oxidation step is embedded as a powder into a silver matrix. The product further relates to a corresponding contact material.
    Type: Grant
    Filed: September 15, 2018
    Date of Patent: December 8, 2020
    Inventors: Thomas Honig, Volker Behrens, Havva Cinaroglu
  • Patent number: 10851448
    Abstract: The provided are a high-performance titanium connecting sealing ring for deep-sea oil drilling and production device and a processing method. The sealing ring comprises a ring-shaped ring body, wherein the center hole of the ring body is an inner circumferential surface; a ring-shaped convex plate, a platform, an inclined end surface and a flat end surface are arranged in sequence in the circumferential direction of the outer circumferential surface of the ring body; and threads are processed in the inner circumferential surface. The processing method for the titanium connecting sealing ring mainly comprises the steps of preparation of titanium sponge, vacuum melting of a titanium ingot, forging and pressing, heating forging, heat treatment and machining.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: December 1, 2020
    Inventors: Zicheng Sun, Min Sun, Wukun Wang
  • Patent number: 10807273
    Abstract: A system of 3D printing using a high temperature 3D print head that functions as a “modified ink jet” printer. The print head has the ability to print high temperature material such as metal, silicon carbide, and other high temperature material as opposed to inks or plastics. The print head is fabricated from a high temperature material to maintain structural integrity while operation at temperatures above the melting temperature for the material that is being printed.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: October 20, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Kevin J. Kramer, Andrew Bayramian, James A. DeMuth, Bassem S. El-dasher
  • Patent number: 10801093
    Abstract: Pd—Cu—P metallic glass-forming alloy compositions and metallic glasses comprising at least one of Ag, Au, and Fe are provided, wherein the alloys demonstrate improved glass forming ability, as compared to Pd—Cu—P alloys free of Ag, Au, and Fe, and are capable of forming metallic glass rods with diameters in excess of 3 mm, and in some embodiments 26 mm or larger.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: October 13, 2020
    Assignee: GlassiMetal Technology, Inc.
    Inventors: Jong Hyun Na, Marios D. Demetriou, Maximilien Launey, William L. Johnson
  • Patent number: 10792769
    Abstract: A welding flux for duplex stainless steel is used to solve the problem of insufficient penetration depth of a weld formed between two jointed workpieces when workpieces with a thickness above 3 mm is joined by TIG welding. The welding flux for duplex stainless steel includes 25-35 wt % of SiO2, 20-25 wt % of Cr2O3, 10-20 wt % of MoO3, 10-15 wt % of NiO, 5-10 wt % of FeO, 5-10 wt % of Co3O4, 5-10 wt % of MnO2 and 3-5 wt % of CuO.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: October 6, 2020
    Inventor: Kuang-Hung Tseng
  • Patent number: 10780476
    Abstract: A method for making Mg brass EDM wire has the steps of melting a charge of Mg brass to form a melt of Mg brass; transferring the melt to a holding furnace; casting a rod from the melt; and drawing the rod down to a size suitable for EDM machining. Mg deposits may form in the holding furnace. These can be removed by flushing the holding furnace with molten brass.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: September 22, 2020
    Assignee: E. Holdings, Inc
    Inventors: David Joseph Dudas, Richard Balon
  • Patent number: 10744600
    Abstract: A metal plate for laser processing (such as a stainless steel plate or a titanium plate) and preferably an austenitic stainless steel plate suitable for use as a metal mask or the like which undergoes fine processing with a laser has an average grain diameter d (?m) and a plate thickness t (?m) which satisfy the equation d?0.0448·t?1.28.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: August 18, 2020
    Inventors: Kazuyoshi Fujisawa, Masayuki Shibuya, Kouichi Takeuchi
  • Patent number: 10744247
    Abstract: The present invention relates to kits and methods for calibrating a pump through performance of a thermal knockdown process including demagnetization of an impeller of the pump where the impeller is separate from the pump. By heat treating the impeller, a property of magnetic interaction of the pump is reduced in a repeatable manner. A kit includes a pump with impeller, a controller and an oven. The method generally involves an iterative process of testing the pump for a property related to magnetic interaction of the elements of the pump, removing the impeller from the pump, heating the impeller under controlled conditions, then placing the impeller back into the pump to repeat the test performed initially.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 18, 2020
    Assignee: HeartWare, Inc.
    Inventors: Justin Wolman, Carlos Reyes, Fernando Casas
  • Patent number: 10718033
    Abstract: A heat-treated steel material is provided having strength of 2.000 GPa or more. The heat-treated steel material includes a chemical composition represented by, in mass %: C: 0.05% to 0.30%; Si: 0.50% to 5.00%; Mn: 2.0% to 10.0%; Cr: 0.01% to 1.00%; Ti: 0.010% to 0.100%; B: 0.0020% to 0.0100%; P: 0.050% or less; S: 0.0500% or less; N: 0.0100% or less; Ni: 0% to 2.0%; each of Cu, Mo, and V: 0% to 1.0%; each of Al and Nb: 0% to 1.00%; and the balance: Fe and impurities. “4612×[C]+51×[Si]+102×[Mn]+605>2000” is satisfied. The heat-treated steel material includes a microstructure in which 90 volume % or more is formed of martensite, and a dislocation density in the martensite is equal to or more than 1.2×1016 m?2.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: July 21, 2020
    Inventors: Shinichiro Tabata, Kazuo Hikida, Nobusato Kojima
  • Patent number: 10662497
    Abstract: A high-strength austenitic stainless steel, which has good hydrogen embrittlement resistance and hydrogen fatigue resistance, has a chemical composition including, in mass %, C: up to 0.10%; Si: up to 1.0%; Mn: not less than 3.0% and less than 7.0 %; Cr: 15 to 30%; Ni: not less than 12.0% and less than 17.0%; Al: up to 0.10%; N: 0.10 to 0.50%; P: up to 0.050%; S: up to 0.050%; at least one of V: 0.01 to 1.0% and Nb: 0.01 to 0.50%; and other elements, the balance being Fe and impurities, wherein the ratio of the minor axis to the major axis of the austenite crystal grains is greater than 0.1, the crystal grain size number of austenite crystal grains is not lower than 8.0, and the tensile strength is not less than 1000 MPa.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: May 26, 2020
    Inventors: Jun Nakamura, Tomohiko Omura, Hiroyuki Hirata, Kana Jotoku, Takahiro Osuki
  • Patent number: 10658107
    Abstract: In a method of manufacturing a permanent magnet having a curved surface, a permeating material including metal particles and a flux is applied to the curved surface of a magnet. The magnet to which the permeating material is applied is then positioned within a furnace and the furnace is placed in a vacuum or filled with inert gas to volatilize a solvent and the like of the flux contained in the permeating material. The furnace is set to be a temperature within a range of 300 through 500 degrees C. to heat the permeating material. This enables the flux to be carbonized to form reticulated carbon. The furnace is then set to be a temperature within a range of 500 through 800 degrees C. to melt the metal particles in the permeating material, thereby permeating the melted metal particles into the magnet through the reticulated carbon uniformly.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: May 19, 2020
    Assignee: Senju Metal Industry Co., Ltd.
    Inventors: Daisuke Sakuma, Kazuaki Haga, Takaaki Takahashi, Minoru Ueshima, Takashi Akagawa, Yoshie Tachibana
  • Patent number: 10619229
    Abstract: An iron alloy powder consists of, when the entirety thereof is assumed to be 100 mass %, Cr: 2.5 mass % to 3.5 mass %, Mo: 0.4 mass % to 0.6 mass %, and Fe and inevitable impurities as the balance, a mixed powder consisting of 15 mass % to 40 mass % of the iron alloy powder, 1.2 mass % to 1.8 mass % of a copper powder, 0.5 mass % to 1.0 mass % of a graphite powder, and a pure iron powder as the balance when the entire mixed powder is assumed to be 100 mass % is compacted into a compact, and the compact is sintered while transforming a structure derived from the pure iron powder into a structure in which a ferritic structure and a pearlitic structure are mixed and transforming a structure derived from the iron alloy powder into a martensitic structure.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: April 14, 2020
    Inventors: Nobuyuki Shinohara, Yuki Kamo, Yoshihisa Ueda, Takanori Yoneda, Yusaku Yoshida, Masaru Sugimoto
  • Patent number: 10590511
    Abstract: A process for digestion of fine iridium includes (a) alkaline oxidative digestion of 1 part by weight fine iridium and 3 to 20 parts by weight of a combination comprising 40 to 70 parts by weight sodium hydroxide, 15 to 30 parts by weight sodium nitrate, and 10 to 40 parts by weight sodium peroxide in the melt, whereby the sum of the weight fractions equals 100 parts by weight; (b) cooling the digestion material formed in step (a) to 20 to 70° C.; (c) dissolving the acid-soluble fractions of the cooled digestion material in water/halogen hydracid until an acidic aqueous solution with a pH value of ?1 to +1 is obtained; and (d) boiling the acidic aqueous solution obtained in step (c) until the formation of nitrous gases is completed. Insoluble ingredients can be separated from the acidic aqueous solution before or after step (d), if needed.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: March 17, 2020
    Inventors: Martin Stettner, Magdalena Günther, Stefanie Fuchs Alameda, Vasco Thiel, Steffen Voß
  • Patent number: 10546688
    Abstract: Provided is a method for producing a rare-earth magnet that can resolve a problem of deterioration of the residual magnetization and coercive force of the rare-earth magnet due to spring-back in producing the rare-earth magnet through performing hot deformation processing of upsetting on a sintered body. The method includes a first step of producing the sintered body through press-forming of magnetic powder for a rare-earth magnet, and a second step of producing a rare-earth magnet precursor through hot deformation processing of upsetting in which the sintered body is placed within a plastic processing mold and is pressurized in a predetermined direction so as to impart magnetic anisotropy to the sintered body, and performing cooling of the rare-earth magnet precursor while a predetermined pressure is kept being applied thereto in the predetermined direction, so that the rare-earth magnet is produced.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: January 28, 2020
    Inventors: Daisuke Ichigozaki, Takeshi Yamamoto