Miscellaneous Patents (Class 51/293)
  • Patent number: 12017327
    Abstract: The present disclosure provides systems, devices, and methods for abrasive articles and manufacturing the same.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: June 25, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Aaron K. Nienaber, Joseph B. Eckel, Thomas J. Nelson, Ann M. Hawkins, Amelia W. Koenig
  • Patent number: 12006464
    Abstract: A shaped abrasive agglomerate particle includes a shaped abrasive particle bonded in a siliceous matrix. The siliceous matrix comprises a reaction product of an alkali silicate and a hardener. The abrasive agglomerate particles are useful in abrasive articles. Methods of making the shaped abrasive agglomerate particle and abrading a workpiece are also described.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: June 11, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Taisiya Skorina, Negus B. Adefris
  • Patent number: 12000051
    Abstract: In a sliding member, fatigue resistance of a surface layer formed by dispersing a hard material in a soft metal matrix is improved. A sliding member includes a base material layer and a surface layer, the surface layer includes a metal matrix and a hard material harder than the matrix and dispersed in the matrix, the hard material has a gradient in hardness, and the gradient in hardness gradually decreases from an inner side to a surface of the hard material.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: June 4, 2024
    Assignee: DAIDO METAL COMPANY LTD.
    Inventors: Soushi Imaoka, Manae Mori, Yuma Haneda
  • Patent number: 11982053
    Abstract: The problem of increased energy usage in refiners over the working life of a refining assembly is mitigated by the use of a refiner plate segment having a refiner side and a back side distally disposed from the refiner side, refiner bars engaged to a substrate of the refiner side, wherein the refiner bars have a refiner bar height, and wherein adjacent refiner bars and the substrate define grooves between the adjacent bars, and protrusions disposed in the grooves, wherein the protrusions have a protrusion height, wherein the protrusion height is 30% or less of the refiner bar height.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: May 14, 2024
    Assignee: ANDRITZ INC.
    Inventors: Luc Gingras, Tobias Michel
  • Patent number: 11969860
    Abstract: An embodiment of a PCD insert comprises an embodiment of a PCD element joined to a cemented carbide substrate at an interface. The PCD element has internal diamond surfaces defining interstices between them. The PCD element comprises a masked or passivated region and an unmasked or unpassivated region, the unmasked or unpassivated region defining a boundary with the substrate, the boundary being the interface. At least some of the internal diamond surfaces of the masked or passivated region contact a mask or passivation medium, and some or all of the interstices of the masked or passivated region and of the unmasked or unpassivated region are at least partially filled with an infiltrant material.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: April 30, 2024
    Assignees: Element Six Limited, Baker Hughes Incorporated
    Inventors: John Hewitt Liversage, Danny Eugene Scott, Humphrey Samkelo Lungisani Sithebe, Kaveshini Naidoo, Bronwyn Annette Kaiser, Michael Lester Fish
  • Patent number: 11945944
    Abstract: The disclosure relates to a curable composition comprising: a polymerizable epoxy-acrylate resin composition having a complex viscosity at 25° C. and 1 Hz frequency of at least about 4500 Pa-s and a probe tack peak force of at least about 300 kPa; and abrasive particles partially or fully embedded in the polymerizable epoxy-acrylate resin composition. The disclosure also relates to cured compositions formed from such curable compositions, wherein the abrasive particles are partially or fully embedded in the cured composition. In addition, the disclosure relates to abrasive articles made from such cured compositions as well as methods for making abrasive articles.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: April 2, 2024
    Assignee: 3M Innovative Properties Company
    Inventors: Kathleen S. Shafer, Rebecca A. Putans, Ernest L. Thurber, Cyrus A. Anderson, Corinne E. Lipscomb, Thomas J. Nelson, Gregory P. Sorenson, Chainika Jangu
  • Patent number: 11938547
    Abstract: A turning tool includes: a holder portion; and a cutting edge portion fixed to the holder portion, wherein the cutting edge portion is composed of a synthetic single-crystal diamond, and the cutting edge portion has a nose curvature having a curvature radius of more than or equal to 0.1 mm and less than or equal to 1.2 mm, and the nose curvature satisfies at least one of a condition that a direction of a line of intersection between the rake face and a bisecting cross section of a vertex angle of the nose curvature is within ±10° relative to a <110> direction of the synthetic single-crystal diamond, and a condition that the direction of the line of intersection between the rake face and the bisecting cross section of the vertex angle of the nose curvature is within ±10° relative to a <100> direction of the synthetic single-crystal diamond.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: March 26, 2024
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Akihiko Ueda, Takuya Nohara, Yutaka Kobayashi
  • Patent number: 11891559
    Abstract: A shaped abrasive particle including a body comprising a first major surface, a second major surface, and a side surface extending between the first major surface and the second major surface, the body comprising a sharpness-shape-strength factor (3SF) within a range between about 0.7 and about 1.7 and a Shape Index within a range between at least about 0.01 and not greater than about 0.49.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: February 6, 2024
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Christopher Arcona, David F. Louapre, Samuel S. Marlin, Doruk O. Yener, Jennifer H. Czerepinski, Kristin Breder, Flavien Fremy
  • Patent number: 11873256
    Abstract: This disclosure relates to a polycrystalline diamond (PCD) body comprising a PCD material formed of intergrown diamond grains forming a diamond network, and an iron-containing binder.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: January 16, 2024
    Inventors: Antionette Can, Xiaoxue Zhang, Igor Petrusha, Alexander Osipov, Denis Stratiichuk, Vladimir Turkevich
  • Patent number: 11839945
    Abstract: A method for preparing a polishing pad includes: preparing a polishing pad transition structure formed with a plurality of grooves, openings of the plurality of grooves being all located on a same side surface of the polishing pad transition structure; filling the plurality of grooves of the polishing pad transition structure with inorganic nanoparticles; pouring a mixture of a liquid polymer and a curing agent on the polishing pad transition structure, and evacuating air in the liquid polymer and the plurality of grooves; and placing the polishing pad transition structure in an environment at a temperature higher than or equal to a first temperature threshold, and the cured liquid polymer and the polishing pad transition structure constituting the polishing pad.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: December 12, 2023
    Assignees: XI'AN ESWIN MATERIAL TECHNOLOGY CO., LTD., XI'AN ESWIN SILICON WAFER TECHNOLOGY CO., LTD.
    Inventors: Yuxuan Guo, Sungwoo Cho
  • Patent number: 11819918
    Abstract: A method of producing a machining segment, in which a green body (51) is constructed from a machining zone (54), wherein the machining zone (54) is produced from a first metallic powder material (56) and hard material particles (58), the green body (51) is compacted under pressure with a compression pressure to result in a compact body and the compact body is sintered thermally at a sintering temperature to result in the finished machining segment, wherein the machining zone (54) is produced by layer-by-layer application of material layers of the first metallic powder material (56) and particle layers of the hard material particles (58), wherein the hard material particles (58) in one particle layer are placed into the previously applied material layer of the first metallic powder material (56).
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: November 21, 2023
    Assignee: Hilti Aktiengesellschaft
    Inventors: Marcel Sonderegger, Matthias Mueller, Heiko Schaefer
  • Patent number: 11794245
    Abstract: A super hard polycrystalline construction is disclosed as comprising a body of super hard material having a first fraction of super hard grains in a matrix of a second fraction of super hard grains. The average grain size of the first fraction is between around 1.5 to around 10 times the average grain size of the second fraction and the first fraction comprises around 5 vol % to around 30 vol % of the grains of super hard material in the body.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: October 24, 2023
    Assignee: Element Six (UK) Limited
    Inventors: Maweja Kasonde, Teresa Rodriguez Suarez, Amanda Lynne Mckie, Edwin Stewart Eardley
  • Patent number: 11788422
    Abstract: An excellent abrasive blade tip is provided by a two-layer coating system consisting of a brazing solder coating and an NiCoCrAlY coating containing cBN (cubic Boron Nitride).
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: October 17, 2023
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventors: Eckart Schumann, Britta Stöhr, Arturo Flores Renteria, Francis Ladru, Thorsten Schulz, Adrian Wollnik
  • Patent number: 11766761
    Abstract: A method of processing a superabrasive element includes providing a superabrasive element including a polycrystalline diamond table that includes a metallic material disposed in interstitial spaces defined within the polycrystalline diamond table. The polycrystalline diamond table includes a superabrasive face and a superabrasive side surface extending around an outer periphery of the superabrasive face. The method also includes leaching the metallic material from at least a volume of the polycrystalline diamond table to produce a leached volume in the polycrystalline diamond table by (1) exposing at least a portion of the polycrystalline diamond table to a processing solution, (2) exposing an electrode to the processing solution, and (3) applying a charge to the electrode such that a voltage is generated between the polycrystalline diamond table and the electrode and the voltage is applied to the processing solution.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: September 26, 2023
    Assignee: US Synthetic Corporation
    Inventors: Daniel Marin Scott, Daren Nathaniel Heaton, Jeremy Brett Lynn, Mark Pehrson Chapman, Oakley D. Bond
  • Patent number: 11745303
    Abstract: In an abrasive body used for polishing by a CMP method, provided with a resin structure, a plurality of abrasive grains, and a plurality of longitudinal pores, and made in a form of disc, the longitudinal pore has a length in a thickness direction of the abrasive body longer than a length in a planar direction of the abrasive body, the resin structure includes communicating pores each of which communicating with the longitudinal pore and/or communicating with other communicating pore, the communicating pores include at least one of the abrasive grains in the pores respectively, and the average diameter of the communicating pores is not more than 18 times larger than the average diameter of the abrasive grains.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: September 5, 2023
    Assignee: NORITAKE CO., LIMITED
    Inventors: Wataru Omori, Takaya Yamaguchi, Shota Kitajima, Makoto Sato
  • Patent number: 11746601
    Abstract: Embodiments relate to a polycrystalline diamond compact (“PDC”) including a polycrystalline diamond (“PCD”) table having at least two regions and being bonded to a fine grained cemented tungsten carbide substrate. In an embodiment, a PDC includes a cemented carbide substrate having a cobalt-containing cementing constituent cementing tungsten carbide grains together that exhibit an average grain size of about 1.5 ?m or less, and a PCD table having at least one upper region including diamond grains exhibiting an upper average grain size and at least one lower region adjacent to the upper region a lower average grain size that may be at least two times greater than the upper average grain size. The cemented carbide substrate includes an interfacial surface and a depletion zone depleted of the cementing constituent that extends inwardly from the interfacial surface to a depth of, for example, about 30 ?m to about 60 ?m.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: September 5, 2023
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Debkumar Mukhopadhyay, Greg Carlos Topham, Renato Ventura
  • Patent number: 11725459
    Abstract: The disclosure relates to a multiple ridge diamond compact for a drill bit, comprising a hard alloy substrate (cemented carbide substrate) (102) and a diamond composite layer (101), wherein an end surface of the diamond composite layer is provided with at least two ridges angled relative to each other, and converging ends of two adjacent ridges extend to an edge of the diamond composite layer (101) so as to form a concave cutting edge portion on the edge.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: August 15, 2023
    Assignee: KINGDREAM PUBLIC LIMITED COMPANY
    Inventors: Qiang Liu, Guanfu Tu, Hong Xu
  • Patent number: 11712784
    Abstract: An abrasive article includes an abrasive body having a bond material, abrasive particles contained within the bond material, and an electronic assembly coupled to the abrasive body, wherein the electronic assembly comprises at least one electronic device. In an embodiment, the electronic assembly is coupled to the abrasive body in a tamper-proof manner.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: August 1, 2023
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Robin Chandras Jayaram, Arunvel Thangamani, Gurulingamurthy M. Haralur
  • Patent number: 11707816
    Abstract: The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: July 25, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Steven J. Keipert, John T. Boden, Scott R. Culler
  • Patent number: 11702576
    Abstract: The present inventive subject matter provides an abrasive particle. The abrasive particle can include an elongated body that is defined between opposed first and second ends. Each end defines a substantially planar surface. An axis extends through the first and second ends, and each end has a respective first and second cross-sectional area. At least one of the first and second ends is oriented at an angle relative to the axis that is less than 90 degrees. The elongated body has a variable cross-sectional area centered along the axis. At least one cross-sectional area between the first and second ends represents a local minimum cross-sectional area.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: July 18, 2023
    Assignee: 3M Innovative Properties Company
    Inventor: Negus B. Adefris
  • Patent number: 11691247
    Abstract: An abrasive article includes a body having a bond material extending throughout the body and abrasive particles contained in the bond material. The bond material can include aluminum oxide (Al2O3) and lithium oxide (Li2O). In an embodiment, the bond material can include a ratio (Al2O3/Li2O) of a content of aluminum oxide (Al2O3) relative to a content of lithium oxide (Li2O), based on weight percent, of greater than 11.5 and at most 20. In another embodiment, the abrasive article can have a versatility factor of greater than 1.90.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: July 4, 2023
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Nilanjan Sarangi, Guangyong Lin, Sandhya Jayaraman Rukmani, Stephen E. Fox, Daming Zhang
  • Patent number: 11684981
    Abstract: An ultra-fine nanocrystalline diamond precision cutting tool and a manufacturing method therefor. A diamond cutter is made of a thick self-supporting film of ultra-fine nanocrystalline diamond, the thick film having a thickness of 100-3000 microns, where 1 nanometer?diamond grain size?20 nanometers. In the manufacturing method, the growth of ultra-fine nanocrystalline diamond on a silicon substrate is accomplished by means of two steps of direct current hot cathode glow discharge chemical vapor deposition and hot filament chemical vapor deposition, then the silicon substrate is separated from the diamond to obtain a thick self-supporting film of ultra-fine nanocrystalline diamond, the thick self-supporting film of ultra-fine nanocrystalline diamond is laser cut and then welded to a cutter body, and then by means of edging, rough grinding and fine grinding, an ultra-fine nanocrystalline diamond precision cutting tool is obtained.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: June 27, 2023
    Assignee: NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING. CHINESE ACADEMY OF SCIENCES
    Inventors: Nan Jiang, He Li, Bo Wang, Jian Yi, Yang Cao
  • Patent number: 11668345
    Abstract: Superhard compacts, assemblies including the same, and methods of using the same are disclosed herein. An example assembly includes at least one superhard compact secured to a support body. The support body includes at least one exterior surface and defines at least one recess extending inwardly from the exterior surface. The recess is configured to receive at least a portion of the superhard compact. The assembly includes at least one magnet that secures the superhard compact to the support body. For example, the magnet may form part of the superhard compact, the support body, or both.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: June 6, 2023
    Assignee: US Synthetic Corporation
    Inventor: Brent Richard Eddy
  • Patent number: 11608459
    Abstract: An abrasive particle including a shaped abrasive particle including a body having a plurality of abrasive particles bonded to at least one surface of the body of the shaped abrasive particle.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: March 21, 2023
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Frederic Josseaux, David F. Louapre
  • Patent number: 11585156
    Abstract: The disclosure provides a pulsed-power drill bit including a bit body, an electrode, and a ground ring coupled to the bit body proximate to the electrode and having a first portion and a second portion located between the first portion and the bit body, the first portion including first composite material including a reinforcement material and an abrasive material infiltrated through at least one region of the reinforcement material, the second portion including a second composite material including the reinforcement material and a binder material infiltrated through the reinforcement material, the second composite material having a different composition than the first composite material. The disclosure further provides a pulsed-power drilling system containing such a bit and a method of pulsed-power drilling using such a bit.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: February 21, 2023
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Jacob H. Kronman
  • Patent number: 11541464
    Abstract: A method for manufacturing a cutting tool according to one embodiment is a method for manufacturing a cutting tool, the cutting tool including a base material and a diamond single crystal material fixed to the base material, the diamond single crystal material having a rake face, a flank face continuous with the rake face, and a cutting edge formed by a ridgeline serving as a boundary between the rake face and the flank face. The method for manufacturing a cutting tool according to one form of the present disclosure includes a flank face irradiation step of applying a laser to the diamond single crystal material along the cutting edge from a side of the flank face. The laser has a pulse width of 1×10?12 seconds or less and a peak output of less than 1 W in the flank face irradiation step.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: January 3, 2023
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventor: Gaku Harada
  • Patent number: 11534887
    Abstract: Embodiments relate to a polishing pad for use in a chemical mechanical planarization (CMP) process of semiconductor devices. The polishing pad may secure excellent polishing rate and within-wafer non-uniformity by controlling the physical properties such as initial load resistivity and compressive elasticity of the cushion layer and/or the laminate as defined by Equations 1 and 2: L ? R L ? ( % ) = T ? 1 ? L - T ? 2 ? L T ? 1 ? L - T ? 3 ? L × 100 [ Equation ? ? 1 ] C ? E L ? ( % ) = T ? 4 ? L - T ? 3 ? L T ? 2 ? L - T ? 3 ? L × 1 ? 00.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: December 27, 2022
    Assignee: SKC SOLMICS CO., LTD.
    Inventors: Jangwon Seo, Eun Sun Joeng, Jong Wook Yun
  • Patent number: 11529764
    Abstract: The present invention relates generally to coated abrasive articles, such as coated abrasive film belts having improved strength and durability, as well as methods of making and using said coated abrasive articles.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: December 20, 2022
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventor: Paul S. Goldsmith
  • Patent number: 11524384
    Abstract: Embodiments of the present disclosure provide for abrasive delivery (AD) polishing pads and manufacturing methods thereof. In one embodiment, a method of forming a polishing article includes forming a sub-polishing element from a first curable resin precursor composition and forming a plurality of polishing elements extending from the sub-polishing element. Forming the plurality of polishing elements includes forming a continuous polymer phase from a second curable resin precursor composition and forming a plurality of discontinuous abrasive delivery features disposed within the continuous polymer phase. The sub-polishing element is formed by dispensing a first plurality of droplets of the first curable resin precursor composition. The plurality polishing elements are formed by dispensing a second plurality of droplets of the second curable resin precursor composition.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: December 13, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Ashwin Chockalingam, Rajeev Bajaj, Ashavani Kumar, Daniel Redfield
  • Patent number: 11508629
    Abstract: There is provided a nitride semiconductor laminate, including: a substrate; an electron transit layer provided on the substrate and containing a group III nitride semiconductor; and an electron supply layer provided on the electron transit layer and containing a group III nitride semiconductor, wherein a surface force A of the electron supply layer acting as an attractive force for attracting a probe and a surface of the electron supply layer when measured using the probe consisting of a glass sphere with a diameter of 1 mm covered with Cr, is stronger than a surface force B of Pt when measured under the same condition, and an absolute value |A?B| of a difference between them is 30 ?N or more.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: November 22, 2022
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Fumimasa Horikiri
  • Patent number: 11472989
    Abstract: A fixed abrasive article having a body including abrasive particles contained within a bond material, the abrasive particles including shaped abrasive particles or elongated abrasive particles having an aspect ratio of length:width of at least 1.1:1, each of the shaped abrasive particles or elongated abrasive particles having a predetermined position or a predetermined three-axis orientation.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 18, 2022
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Celine Colet, Kuo Gao, Srikanth Rapaka, Joseph R. Rich, Katherine M. Sahlin, Nilanjan Sarangi, Andrew B. Schoch
  • Patent number: 11471999
    Abstract: Embodiments described herein relate to integrated abrasive (IA) polishing pads, and methods of manufacturing IA polishing pads using, at least in part, surface functionalized abrasive particles in an additive manufacturing process, such as a 3D inkjet printing process. In one embodiment, a method of forming a polishing article includes dispensing a first plurality of droplets of a first precursor, curing the first plurality of droplets to form a first layer comprising a portion of a sub-polishing element, dispensing a second plurality of droplets of the first precursor and a second precursor onto the first layer, and curing the second plurality of droplets to form a second layer comprising portions of the sub-polishing element and portions of a plurality of polishing elements. Here, the second precursor includes functionalized abrasive particles having a polymerizable group chemically bonded to surfaces thereof.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: October 18, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Ashavani Kumar, Ashwin Chockalingam, Sivapackia Ganapathiappan, Rajeev Bajaj, Boyi Fu, Daniel Redfield, Nag B. Patibandla, Mario Dagio Cornejo, Amritanshu Sinha, Yan Zhao, Ranga Rao Arnepalli, Fred C. Redeker
  • Patent number: 11465261
    Abstract: The disclosed technology includes an abrasive cutting tool having a plurality of segments arranged around a periphery of the cutting tool. The plurality of segments can include a first segment having a first portion having a first concentration of abrasive material, and a second portion having a second concentration of abrasive material. The second concentration can be less than the first concentration. The cutting tool can have a second segment having a third portion having a concentration of abrasive material that can be similar to the concentration of the first portion, and a fourth portion having a concentration of abrasive material that can be similar to the concentration of the second portion. The first portion and the second portion can be reciprocally arranged in relation to the third portion and the fourth portion around the periphery of the cutting tool.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: October 11, 2022
    Assignee: Dixie Diamond Manufacturing, Inc.
    Inventor: Yong Wook Lee
  • Patent number: 11453597
    Abstract: A nanometer niobium carbide/carbon nanotube reinforced diamond composite and a preparation method thereof, belonging to the field of materials science. The nanometer niobium carbide/carbon nanotube reinforced diamond composite is composed of nanometer niobium carbide/carbon nanotube composite powders, matrix powders and diamond grains, wherein the nanometer niobium carbide/carbon nanotube composite powders are the composites of nanometer niobium carbide which are evenly distributed in the surface defects and interior of the carbon nanotube, the nanometer niobium carbide/carbon nanotube reinforced diamond composite is prepared by mixing the nanometer niobium carbide/carbon nanotube composite powders, matrix powders and diamond grains uniformly and sintering with a hot pressing technique.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: September 27, 2022
    Assignee: Jilin University
    Inventors: Baochang Liu, Wenhao Dai, Siqi Li, Zhe Han, Xinzhe Zhao, Shujing Wang
  • Patent number: 11440108
    Abstract: A rotary cutting tool includes a main body and a shank. The main body has a tip end. The shank is continuous with the main body on the side opposite to the tip end. The main body is provided with a first cutting edge having a positive twist angle, and a second cutting edge having a negative twist angle and separated from the first cutting edge. Each of the first cutting edge and the second cutting edge extends continuously from the tip end to the shank.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: September 13, 2022
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Nozomi Tsukihara, Yutaka Kobayashi, Minoru Yoshida
  • Patent number: 11383217
    Abstract: A method of processing a polycrystalline diamond element may include providing a protective leaching cup having a rear wall, an opening defined by a portion of the protective leaching cup opposite the rear wall, and a side wall extending between the opening and the rear wall, the side wall and the rear wall defining a cavity within the protective leaching cup. The method may further include positioning a polycrystalline diamond element in the cavity defined within the protective leaching cup. Positioning the polycrystalline diamond element in the cavity may include expanding at least a portion of the opening outward from a center of the opening. The method may additionally include exposing at least a portion of the polycrystalline diamond element to a leaching agent.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: July 12, 2022
    Assignee: US Synthetic Corporation
    Inventors: Michael James Gleason, Jair Jahaziel Gonzalez
  • Patent number: 11376604
    Abstract: A method is disclosed for crushing material to be ground with a mill which contains a grinding chamber which is connected to a feed for material to be ground and to an outlet for ground particles, and contains grinding devices for producing particles of the desired fineness from the fed material to be ground, wherein the grinding takes place in a reducing atmosphere which contains a reduction gas. Also disclosed, is a mill having a grinding chamber which is connected to a feed for material to be ground and to an outlet for ground particles, and contains grinding devices for producing particles of the desired fineness from the fed material to be ground, wherein the grinding chamber contains a reducing atmosphere in which the grinding takes place and which contains a reduction gas.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: July 5, 2022
    Assignee: NETZSCH Trockenmahltechnik GmbH
    Inventors: Roland Nied, Hermann Sickel
  • Patent number: 11344998
    Abstract: The method generally involves the steps of filling the cavities in a production tool each with an individual abrasive particle. Aligning a filled production tool and a resin coated backing for transfer of the abrasive particles to the resin coated backing. Transferring the abrasive particles from the cavities onto the resin coated backing and removing the production tool from the aligned position with the resin coated backing. Thereafter the resin layer is cured, a size coat is applied and cured and the coated abrasive article is converted to sheet, disk, or belt form by suitable converting equipment.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: May 31, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: Scott R. Culler, John T. Boden, Steven J. Keipert, Negus B. Adefris
  • Patent number: 11292750
    Abstract: A method of forming a supporting substrate for a cutting element comprises forming a precursor composition comprising discrete WC particles, a binding agent, and discrete particles comprising Co, Al, and one or more of C and W. The precursor composition is subjected to a consolidation process to form a consolidated structure including WC particles dispersed in a homogenized binder comprising Co, Al, W, and C. A method of forming a cutting element, a cutting element, a related structure, and an earth-boring tool are also described.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: April 5, 2022
    Assignee: Baker Hughes Holdings LLC
    Inventor: Marc W. Bird
  • Patent number: 11235435
    Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table having a diamond grain size distribution selected for improving leachability. In an embodiment, a PDC includes a PCD table bonded to a substrate. The PCD table includes diamond grains exhibiting diamond-to-diamond bonding therebetween. The diamond grains includes a first amount being about 30 to about 65 volume % of the diamond grains and a second amount being about 18 to about 65 volume % of the diamond grains. The first amount exhibits a first average grain size of about 8 ?m to about 22 ?m. The second amount exhibits a second average grain size that is greater than the first average grain size and is about 15 ?m to about 50 ?m. Other embodiments are directed methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: February 1, 2022
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Brandon Paul Linford, Cody William Knuteson
  • Patent number: 11192218
    Abstract: In an embodiment, a protective leaching cup may include a base portion, at least one sidewall defining an opening general opposite the base portion, and a receiving space in communication with the opening and at least partially defined by the base portion and the sidewall. The receiving space is sized and configured to receive at least a portion of the superabrasive element. A seal contact portion is located on an inner surface of the sidewall. The seal contact portion is configured to form a seal against the superabrasive element that is at least partially impermeable to fluid(s). At least one of the seal contact portion or the sidewall includes material(s) exhibiting a flexural modulus greater than about 150,000 psi at room temperature.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: December 7, 2021
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Michael James Gleason, Victor Hugo Oritz
  • Patent number: 11148256
    Abstract: A cutting wheel includes a body having a bond material. The bond material comprises at least about 31 vol % of a total volume of the body. Additionally, the body includes abrasive particles contained within the bond material. The abrasive particles include a first type of abrasive particle including black alumina with at least about 10 vol % of a total volume of the abrasive particles including black alumina. In some instances the cutting wheel can include a chop saw, while in other situations, the cutting wheel can include a cut-off wheel.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 19, 2021
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Dashi Nie, Shenglan Huang, Gaoxiang Gou
  • Patent number: 11142673
    Abstract: An abrasive grain is disclosed and may include a body. The body may define a length (l), a height (h), and a width (w). In a particular aspect, the length is greater than or equal to the height and the height is greater than or equal to the width. Further, in a particular aspect, the body may include a primary aspect ratio defined by the ratio of length:height of at least about 2:1. The body may also include an upright orientation probability of at least about 50%.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: October 12, 2021
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Doruk O. Yener, Jennifer H. Czerepinski, Sujatha K. Iyengar, Michael D. Kavanaugh, Alan J. Brandes, Christopher Arcona, Ralph Bauer, Yves Boussant-Roux, Tracy H. Panzarella
  • Patent number: 11141834
    Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) and methods of fabricating polycrystalline diamond tables and PDCs in a manner that facilitates removal of metal-solvent catalyst used in the manufacture of polycrystalline diamond tables of such PDCs.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: October 12, 2021
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Mohammad N. Sani, Jair J. Gonzalez, Andrew E. Dadson, Debkumar Mukhopadhyay
  • Patent number: 11135560
    Abstract: In an embodiment, a polycrystalline diamond table includes a plurality of bonded diamond grains and a plurality of interstitial regions defined by the plurality of bonded diamond grains. The polycrystalline diamond table may be at least partially leached such that at least a portion of at least one interstitial constituent has been removed from at least a portion of the plurality of interstitial regions by exposure to a leaching agent. The leaching agent may include a mixture having a ratio of weight % hydrofluoric acid to weight % nitric acid of about 1.0 to about 2.4, and water in a concentration of about 50 weight % to about 85 weight %. Various other materials, articles, and methods are also disclosed.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: October 5, 2021
    Assignee: US Synthetic Corporation
    Inventors: Julie Ann Kidd, Heather Marie Schaefer, Chengkun Xu, Jason K. Wiggins, Matthew Brown, Cody Frisby
  • Patent number: 11085488
    Abstract: Embodiments disclosed herein are directed to tilting pad bearing assemblies, bearing apparatuses including the tilting pad bearing assemblies, and methods of using the bearing apparatuses. The tilting pad bearing assemblies disclosed herein include a plurality of tilting pads. At least some of the superhard tables exhibit a thickness that is at least about 0.120 inch and/or at least two layers having different wear and/or thermal characteristics.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: August 10, 2021
    Assignee: US Synthetic Corporation
    Inventor: Jair J. Gonzalez
  • Patent number: 11000935
    Abstract: The present invention relates to a polishing pad that minimizes the occurrence of defects and a process for preparing the same, Since the polishing pad comprises fine hollow particles having shells, the glass transition temperature (Tg) of which is adjusted, the hardness of the shells and the shape of micropores on the surface of a polishing layer are controlled. Since the content of Si in the polishing layer is adjusted, it is possible to prevent the surface damage of a semiconductor substrate caused by hard additives. As a result, the polishing pad can provide a high polishing rate while minimizing the occurrence of defects such as scratches on the surface of a semiconductor substrate during the CMP process.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: May 11, 2021
    Assignee: SKC solmics Co., Ltd.
    Inventors: Sunghoon Yun, Hye Young Heo, Jong Wook Yun, Jang Won Seo, Jaein Ahn
  • Patent number: 10927685
    Abstract: An abrasive coating for a substrate of a component in a gas path exposed to a maximum temperature of 1750 degree Fahrenheit, comprising a plurality of grit particles adapted to be placed on a top surface of the substrate; a matrix material bonded to the top surface; the matrix material partially surrounds the grit particles, wherein the grit particles extend above the matrix material relative to the top surface; and a film of oxidant resistant coating applied over the plurality of grit particles and the matrix material.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: February 23, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Kevin Seymour, Christopher W. Strock, Thomas D. Kasprow
  • Patent number: 10919126
    Abstract: Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool including a plurality of strips defining a plurality of channels. Each channel is open to a lower side of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side. At least a majority of the particles distributed from the tool undergo an orientation sequence in which each particle first enters one of the channels. The particle then passes partially through the channel such that a first portion is beyond the lower side and in contact with the major face, and a second portion within the channel. The sequence then includes the particle remaining in simultaneous contact with one of the strips and the major face for a dwell period.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: February 16, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Geoffrey I. Wilson, Brian G. Koethe, Steven J. Keipert
  • Patent number: 10919127
    Abstract: A grinding wheel includes an elastomerically deformable supporting layer, at least a first metallic surface fastened to the elastomerically deformable supporting layer, the metalic surface being an elastically deformable metal foil and includes abrasive particles attached to the at least one metalic surface. The particles may include at least one of: cubic boron nitride or diamonds. The metal foil may have a thickness of less than 1 mm. The abrasive particles may be bonded galvanically on the metallic surface. The abrasive particles may be bonded on the metalic surface in a plurality of areas having regions without abrasive particles therebetween. The metal foil may be adhesively bonded onto the elastomerically deformable supporting layer. The elastomerically deformable supporting layer may be plastic foam. The elastomerically deformable supporting layer may be adhesively bonded onto a metallic supporting body.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: February 16, 2021
    Assignee: Matuschek Messtechnik GmbH
    Inventors: Christoph Pierednik, Tadeusz Ptaszek