Patents Examined by Kevin E Yoon
  • Patent number: 11407026
    Abstract: The invention relates to a cooling system for a mould, in particular a mould for vertical continuous casting, comprising at least one cooling unit (11), wherein the mould has a running surface (10) with an inner side and an outer side and the inner side of the running surface (10a) limits a continuous casting during operation, wherein the cooling unit (11) is designed to be moveably arranged on the mould and the cooling unit (11) has an adjusting element (13), wherein the cooling unit (11) is arranged on the mould in such a way that a gap (12) is formed between the cooling unit (11) and the outer side of the running surface (10) and the width of the gap (12) can be adjusted by the adjusting element (13).
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: August 9, 2022
    Assignee: CASTHOUSE REVOLUTION CENTER GMBH
    Inventors: Ralf Wilhelm Ernst Lüngen, Thomas Willem Jumelet
  • Patent number: 11400513
    Abstract: A continuous casting facility used for thin slab casting has a mold for casting molten steel, an immersion nozzle that supplies the molten steel into the mold, and an electromagnetic stirring device capable of providing a swirl flow at a molten steel surface in the mold, and a thickness DCu (mm) of a copper plate of a long side wall, a thickness T (mm) of a steel piece, a frequency f (Hz) of the electromagnetic stirring device, electric conductivity ? (S/m) of the molten steel, and electric conductivity ?Cu (S/m) of the copper plate of the long side wall are adjusted to satisfy the following formulae (1)-a and (1)-b: DCu<?(2/?Cu??)??(1)-a ?(1/2???)<T??(1)-b, where ?=2?f: angular velocity (rad/sec), and ?=4?×10?7: magnetic permeability in vacuum (N/A2).
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: August 2, 2022
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Hiroshi Harada, Kanoko Yamamoto, Takuya Takayama, Keita Ikeda, Yui Ito
  • Patent number: 11396910
    Abstract: Provided are a sliding member and a sliding bearing which can improve the fatigue resistance. A sliding member having a base layer and a coating layer laminated on the base layer, in which the coating layer contains Bi or Sn as a first metal element, a second metal element which is harder than the first metal element and forms an intermetallic compound with the first metal element, C, and unavoidable impurities.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: July 26, 2022
    Assignee: TAIHO KOGYO CO., LTD.
    Inventor: Shigeyuki Suga
  • Patent number: 11389863
    Abstract: A collector nozzle for continuous casting may include: a nozzle body extended toward a shroud nozzle, and having an internal movement path through which molten steel is moved; a first case covering a side surface of the nozzle body; and a second case including a second metal component, connected to the first case, and covering an exit surface of the nozzle body facing the shroud nozzle. The first case can include a first metal component, and the first and second cases may be connected through welding or formed as one body.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: July 19, 2022
    Assignee: Hyundai Steel Company
    Inventors: Jung Min Lee, Woong Gan Ki, Young Min Park, Hyeok Jang
  • Patent number: 11384016
    Abstract: The additive for reinforced concrete is a concrete additive for preventing corrosion of steel rebars in steel-reinforced concrete, improving the workability of the cast concrete, and reducing water absorption/permeability in the cast concrete. The reinforced concrete may be a conventional reinforced concrete, such as that formed from a mixture of water, an aggregate and cement, having at least one steel rebar embedded in the mixture. The additive is added to the mixture prior to curing and casting. The additive may for example, have a concentration with respect to the cement of between 0.25 wt % and 1.0 wt %. The additive includes a triazole and a non-ionic surfactant including a poly oxy ethoxylated reaction product of sorbitan and a fatty acid. The triazole and the non-ionic surfactant are dissolved in the solvent.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: July 12, 2022
    Assignee: KING SAUD UNIVERSITY
    Inventors: Abdulrahman Alhozaimy, Raja Rizwan Hussain, Abdulaziz Al-Negheimish, Devendra Deo Narain Singh
  • Patent number: 11383295
    Abstract: A casting method includes forming a seed. The seed has a first end and a second end and an inner diameter (ID) surface and an outer diameter (OD) surface. The seed second end is placed in contact or spaced facing relation with a chill plate. The first end is contacted with molten material. The molten material is cooled and solidified so that a crystalline structure of the seed propagates into the solidifying material. At least a portion of the seed contacted with the molten material has a solidus higher than a solidus of at least an initial pour portion of the molten material.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: July 12, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: Dilip M. Shah, Steven J. Bullied, Ryan C. Breneman, Shiela R. Woodard, Carl R. Verner
  • Patent number: 11376662
    Abstract: A method includes powder forging and machining a workpiece that is fractured to divide the workpiece into separate components. In a green form in which the workpiece is formed of compacted powdered metal and has a body that is generally shaped as a parallelepiped with a pair of end faces. The body defines a bore, a pair of V-notches and a pair of channels. The V-notches are formed into the bore parallel to the central axis of the bore and cooperate to define a separation plane. Each of the channels is formed in an associated one of the end faces at a location where the separation plane intersects the end face. During forging, the channels are closed but create a stress riser that aids in directing the fracture when the components are separated from one another.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: July 5, 2022
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: Dejian Yan, Edwin Wen-Wei Zung
  • Patent number: 11377753
    Abstract: A casting method includes forming a seed. The seed has a first end and a second end. The forming includes bending a seed precursor. The seed second end is placed in contact or spaced facing relation a chill plate. The first end is contacted with molten material. The molten material is cooled and solidifies so that a crystalline structure of the seed propagates into the solidifying material. The forming further includes inserting the bent seed precursor into a sleeve leaving the bent seed precursor protruding from a first end of the sleeve.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: July 5, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: Ryan C. Breneman, Dilip M. Shah, Steven J. Bullied, Shiela R. Woodard
  • Patent number: 11376655
    Abstract: A casting apparatus for continuous or semi-continuous casting having a reservoir for supplying liquid metal, a direct chill casting mold having a mold cavity for at least temporarily holding liquid metal and to at least partially solidify the liquid metal into a cast product, and a pump disposed on the flow path between the reservoir and the mold cavity, wherein the pump is operable to generate a force in the liquid metal that is acting against the tendency of the liquid metal to flow along the flow path from the reservoir into the mold cavity by gravity to control a flow of the liquid metal from the reservoir into the mold cavity, wherein the pump is a direct current electromagnetic pump.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: July 5, 2022
    Assignee: NORSK HYDRO ASA
    Inventor: Arild Håkonsen
  • Patent number: 11370020
    Abstract: The invention relates to a method for producing casting bodies in a levitation melting method in which a batch of an electrically conductive material is brought into the sphere of influence of at least one alternating electromagnetic field by means of a starting material having a plurality of pre-separated batches separated by regions of reduced cross-section so that the batch is kept in a state of levitation. The regions are designed in such a way that separation of the pre-separated batches takes place only during melting in an alternating electromagnetic field. The melt is then cast into casting moulds.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: June 28, 2022
    Assignee: ALD Vacuum Technologies GMBH
    Inventors: Sergejs Spitans, Henrik Franz, Bjoern Sehring, Markus Holz
  • Patent number: 11365334
    Abstract: Embodiments of the present invention include de-icing compositions, along with the manufacture of and use of the de-icing compositions. The de-icing compositions achieve a higher melting capacity and melt ice for longer times than conventional de-icing solutions. The de-icing compositions include suspensions of salt instead of solutions. These de-icing suspensions can be applied to ice using liquid application systems. Embodiments include a de-icing composition. The de-icing composition is a suspension. The de-icing composition includes a solvent, which includes water. The de-icing composition may also include a salt component in a total concentration greater than the solubility of the salt component in water at a temperature in a range from 0° F. to 40° F. A portion of the salt component may not be dissolved in the solvent. The undissolved portion of the salt component may include particles with an effective diameter less than 500 ?m. The de-icing composition may further include a suspending agent.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: June 21, 2022
    Assignee: EnviroTech Services, Inc.
    Inventors: Stephen C. Bytnar, Stephen Utschig-Samuels, Derek Bailey, Paul Bordoni
  • Patent number: 11361888
    Abstract: One embodiment of the present invention is that in samarium-iron-nitrogen magnet powder, a non-magnetic phase is formed on a surface of the samarium-iron-nitrogen magnet phase, and an arithmetic mean roughness Ra of the surface is 3.5 nm or less.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: June 14, 2022
    Assignees: National Institute of Advanced Industrial Science and Technology, TDK Corporation
    Inventors: Shusuke Okada, Kenta Takagi, Yasushi Enokido, Yoshinori Fujikawa, Ryuji Hashimoto
  • Patent number: 11358900
    Abstract: The present invention relates to an aluminous cement.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 14, 2022
    Assignee: Calucem GmbH
    Inventors: Günther Walenta, Ronny Kaden, Markus Schmid
  • Patent number: 11351609
    Abstract: A method of forming tungsten tetraboride, by combining tungsten and boron in a molar ratio of from about 1:6 to about 1:12, respectively, and firing the combined tungsten and boron in the hexagonal boron nitride crucible at a temperature of from about 1600 C to about 2000 C, to form tungsten tetraboride.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: June 7, 2022
    Assignee: Millennitek LLC
    Inventors: Andrew M. Spradling, Lawrence W. Townsend
  • Patent number: 11352503
    Abstract: A powder mixture including spherical barium titanate particles and spherical oxide particles and having an average particle diameter of 2 ?m or more and 30 ?m or less, wherein the spherical oxide particles have an average particle diameter of 0.05 ?m or more and 1.5 ?m or less, and the spherical oxide particles are contained in an amount of 0.02% by mass or more and 15% by mass or less based on the powder mixture. The spherical oxide particles are preferably amorphous silicon dioxide particles and/or aluminum oxide particles. According to the present invention, it is possible to provide a spherical barium titanate-based powder which enables to prepare a high dielectric resin composition with which reduced wire sweep amount and burr are achieved.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: June 7, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventors: Shuji Sasaki, Yuzo Nakamura, Kohki Ichikawa
  • Patent number: 11339092
    Abstract: The present invention belongs to the field of composite materials, and particularly to a non-flowable quick-setting phosphate cement repair material with strong cohesive forces and the preparation method thereof. The material comprises the following raw materials in percentage by weight: 20% to 40% of sand, 5% to 12% of ammonium dihydrogen phosphate, 10% to 25% of magnesium oxide, 2% to 8% of fly ash, 30% to 60% of rubber powder, 6% to 10% of silica fume, 0.35% to 0.6% of a polycarboxylate high efficiency water-reducing agent, 1% to 5% of sodium silicate, 1.5% to 2% of a polypropylene fiber, 0.5% to 2% of a retarder, and 8% to 10% of water. The material is used as the repair material for the special positions of bottom boards of bridges or facades of buildings which are damaged, and the repair effect thereof is remarkable.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: May 24, 2022
    Inventors: Jiahuan Yu, George Jiebao Yu
  • Patent number: 11339091
    Abstract: The present disclosure provides a cementitious material and production method thereof. The method comprises steps of: (1) dry desulfurization and denitrification of a flue gas with a flue gas absorbent to give a by-product, wherein the flue gas absorbent comprises 10-23 parts by weight of a nano-sized metal oxide, 10-23 parts by weight of a micro-sized metal oxide, and 40-60 parts by weight of magnesium oxide, the nano-sized metal oxide being selected from one or more of the group consisting of SiO2, CaO, Fe2O3, Al2O3, CuO, V2O5 and MnO2, and the micro-sized metal oxide being selected from one or more of the group consisting of SiO2, CaO, Fe2O3, Al2O3, CuO, V2O5 and MnO2; and (2) uniformly mixing the by-product with magnesium oxide, an industrial solid waste and an additive to give the cementitious material.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: May 24, 2022
    Assignee: Environment Sustainable System Engineering Technology Co., Ltd.
    Inventor: Shanghui Tong
  • Patent number: 11338357
    Abstract: A diffusion component for impregnating molten steel with a gas includes a barrier having a first side and a second side, a through-hole formed within the barrier, the through-hole connecting the first side to the second side, and a porous element arranged within the through-hole such that the flow of molten steel passes over the porous element. At least one flow disrupter is arranged relative to the porous element and configured to promote non-laminar flow of molten steel passing through the through-hole.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: May 24, 2022
    Assignee: HarbisonWalker International, Inc.
    Inventor: Mark Smith
  • Patent number: 11331724
    Abstract: An apparatus efficiently preparing ultrafine spherical metal powder includes a housing, a crucible and a powder collection area arranged in the housing. The turnplate arranged in the powder collection area is an inlaid structure. The part inlaid into the body part acts as an atomization plane of the turnplate. The atomization plane is provided with a concentric circular groove, and the turnplate is provided with an air hole. The apparatus is used for preparing ultrafine spherical metal powder by on-by-one droplets centrifugal atomization method, mainly combining the uniform droplet jet method and the centrifugal atomization method, which breaks through the traditional metal splitting model, makes the molten metal in a fibrous splitting, so as to efficiently prepare ultrafine spherical metal powder with narrow particle size distribution interval, high sphericity, good flowability, excellent spreadability, uniform and controllable size, no satellite droplets and suitable for industrial production.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: May 17, 2022
    Assignees: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Xiaoming Wang, Yang Zhao, Wenyu Wang, Wei Dong, Yao Meng, Qing Chang, Zhiqiang Ren, Jing Shi, Guofeng Han, Sheng Zhu, Tao Teng, Fumin Xu, Zhaofeng Bai, Yanyang Wang, Yang Han, Guobin Li, Yu Sun, Zhiyong Qin
  • Patent number: 11331718
    Abstract: A method for calculating a conveyance velocity at which oscillation of a liquid surface is suppressed in conveying a container in which a liquid is accommodated, e.g., a ladle in which molten metal is accommodated. In a graph of conveyance velocity versus conveyance time, an upwardly convex parabola and a downwardly convex parabola having vertical symmetry are prepared in advance, the downwardly convex parabola and the upwardly convex parabola are smoothly connected to form an acceleration curve, the upwardly convex parabola and the downwardly convex parabola are smoothly connected to form a deceleration curve, and the conveyance velocity is obtained from the acceleration curve and the deceleration curve smoothly connected where the slope thereof is zero.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: May 17, 2022
    Assignee: HITACHI METALS, LTD.
    Inventor: Takuya Harada