Laminating Patents (Class 51/297)
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Patent number: 11926780Abstract: 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: GrantFiled: February 14, 2023Date of Patent: March 12, 2024Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.Inventors: Frederic Josseaux, David F. Louapre
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Patent number: 11911875Abstract: A flexible abrasive member including a substrate, which carries an array of deposits with embedded abrasive particles, where each deposit has an elongated continuous structure that extends along a center trajectory predominantly in a longitudinal direction across the substrate. The structure has inset portions and recessed portions, which protrude oppositely along a transverse directions from the center trajectory. The inset portions of a deposit are accommodated in the recessed portions of a transversely preceding deposit, and the recessed portions of the deposit accommodate the inset portions of a transversely following deposit, so that the inset portions and recessed portions of neighboring deposits mutually overlap in said transverse directions.Type: GrantFiled: August 21, 2017Date of Patent: February 27, 2024Assignee: KGS DIAMOND AGInventor: Sandro Giovanni Giuseppe Ferronato
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Patent number: 11911876Abstract: A system and method for producing an abrasive article includes a production tool configured to provide shaped abrasive particles to a resin coated backing. A first end and a second end of the production tool are spliced together to form a spliced area. The production tool includes a dispensing surface that includes a plurality of cavities formed between the first end and the second end and configured to receive and hold the shaped abrasive particles. The resin coated backing is configured to receive the shaped abrasive particles from the dispensing surface of the production tool and configured to receive further shaped abrasive particles to fill gaps in the shaped abrasive particles caused by an absence of the plurality of cavities in the spliced area.Type: GrantFiled: December 17, 2019Date of Patent: February 27, 2024Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Thomas J. Nelson, Aaron K. Nienaber, Joseph B. Eckel, Ann M. Hawkins, Amelia W. Koenig
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Patent number: 11351699Abstract: Tool cores may have removable sections, which may be removable without damaging, cutting or severing attachment configurations for the removable sections. The removable sections may be handled simultaneously. Moving parts used to facilitate removal of the removable sections may be secured in a pre-loaded configuration.Type: GrantFiled: January 28, 2021Date of Patent: June 7, 2022Assignee: BARON INVESTMENTS, LLCInventor: Anthony Baratta
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Patent number: 11111732Abstract: The present disclosure is directed to systems, methods, and apparatuses for obtaining sensor data from sensors incorporated into a drill bit during a drilling operation to form a wellbore. The obtained sensor data may be used to control an aspect of the drilling operation. The sensors may be incorporated into drill bit cutters of a drill bit, a drill bit body of a drill bit, or both. Example sensors include acoustic sensors, pressure sensor, vibration sensor, accelerometers, gyroscopic sensors, magnetometer sensors, and temperature sensors.Type: GrantFiled: July 29, 2019Date of Patent: September 7, 2021Assignee: Saudi Arabian Oil CompanyInventors: Guodong Zhan, Chinthaka Pasan Gooneratne, Bodong Li, Timothy E. Moellendick
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Patent number: 11007622Abstract: In-line processes for producing scrubby substrates, and related scrubby substrate cleaning articles. The process may include melting a polymer resin material, and extruding or otherwise dispensing the molten polymer resin material through one or more orifices of a heated nozzle, into a stream of hot inert gas, which attenuates the molten resin, so that the resin forms into elongated globules (rather than fibers or filaments). Such globules may have irregular cross-section and/or irregular thickness along a length of the globules. Alternatively, the molten resin may be formed into substantially continuous or discontinuous string or chain pattern of abrasive fibers, exhibiting a high frequency, low amplitude substantially linear pattern on the base substrate. In either case the globules or abrasive fibers are collected onto at least a portion of a base substrate layer to form a scrubby substrate that is more abrasive than typical meltblown materials.Type: GrantFiled: November 8, 2019Date of Patent: May 18, 2021Assignee: THE COLORX COMPANYInventors: Edward Jason White, Samuel Hugley
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Patent number: 10773360Abstract: Methods of making an abrasive article. Abrasive particles are loaded to a distribution tool defining a plurality of slots that are open to an exterior of the tool. The loaded particles are distributed from the distribution tool to a major face of a backing web below the lower side and moving relative to the tool. Some of the loaded particles become oriented in a respective one of the slots and are then dispensed on to the major face. In this regard, during the step of distributing, a plurality of the oriented particles is simultaneously at least partially within a first slot and in contact with major face. In some embodiments, the distribution tool includes a plurality of aligned rings; adjacent ones of the rings are attached to, and longitudinally separated from, one another by one or more spacer bodies.Type: GrantFiled: July 1, 2016Date of Patent: September 15, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventor: Yuyang Liu
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Patent number: 10556321Abstract: A surface modified abrasive particle may include a core abrasive particle and a coating functionally connected to a surface of the core abrasive particle. The core abrasive particle may have a median particle size of at least about 0.06 microns. The coating may include a compound selected from the group consisting of dopamine, tyrosine, dihydroxyphenylalanine, norepinephrine, epinephrine, normetanephrine, 3,4-dihydroxyphenylacetic acid, tannic acid, pyrogallic acid or combinations thereof.Type: GrantFiled: June 20, 2018Date of Patent: February 11, 2020Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.Inventors: Aiyu Yan, Wen Yang, Pinxu Nie, Shuqiong Liang
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Patent number: 10315175Abstract: A method of forming a polycrystalline diamond body includes mixing a sintering agent with diamond powder to form a premixed layer, the sintering agent including at least one alkaline eat mewl carbonate; forming an infiltration layer adjacent to the premixed layer, the infiltration layer including an infiltrant material including at least one alkaline earth metal carbonate; and subjecting the premixed layer and the infiltration layer to high pressure high temperature conditions.Type: GrantFiled: November 14, 2013Date of Patent: June 11, 2019Assignee: SMITH INTERNATIONAL, INC.Inventors: Yahua Bao, J. Daniel Belnap, Anatoliy Garan, Michael David France
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Patent number: 9868100Abstract: Superabrasive tools and methods for the making thereof are disclosed and described. In one aspect, superabrasive particles are chemically bonded to a matrix support material according to a predetermined pattern by a braze alloy. The brazing alloy may be provided as a powder, thin sheet, or sheet of amorphous alloy. A template having a plurality of apertures arranged in a predetermined pattern may be used to place the superabrasive particles on a given substrate or matrix support material.Type: GrantFiled: June 3, 2011Date of Patent: January 16, 2018Inventor: Chien-Min Sung
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Patent number: 9718168Abstract: Embodiments disclosed herein involve polycrystalline diamond (“PCD”) tables and polycrystalline diamond compacts (“PDCs”) that include PCD tables as well as methods and apparatuses for manufacturing thereof. Some embodiments include a canister assembly that may be used in a high-pressure/high-temperature (“HPHT”) process or other heating process to manufacture the PCD tables and/or the PDCs.Type: GrantFiled: April 2, 2015Date of Patent: August 1, 2017Assignee: US SYNTHETIC CORPORATIONInventors: Debkumar Mukhopadhyay, Robert J. Farr, Ronald W. Ward, Edwin Sean Cox, Damon Bart Crockett, Daniel Preston Wilding
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Patent number: 9539694Abstract: A chemical mechanical polishing pad is provided containing: a polishing layer having a polishing surface; wherein the polishing layer comprises a first continuous non-fugitive polymeric phase and a second continuous non-fugitive polymeric phase; wherein the first continuous non-fugitive polymeric phase has a plurality of interconnected periodic recesses; wherein the plurality of interconnected periodic recesses are occupied with the second continuous non-fugitive polymeric phase; wherein the first continuous non-fugitive polymeric phase has an open cell porosity of ?6 vol %; wherein the second continuous non-fugitive polymeric phase contains an open cell porosity of ?10 vol %; and, wherein the polishing surface is adapted for polishing a substrate.Type: GrantFiled: June 26, 2015Date of Patent: January 10, 2017Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.Inventors: Julia Kozhukh, Teresa Brugarolas Brufau, Bainian Qian
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Patent number: 9463552Abstract: A superabrasive tools having uniformly leveled superabrasive particles and associated methods are provided. In one aspect, for example, a superabrasive can include a metal matrix configured for bonding superabrasive particles and a plurality of superabrasive particles held in the metal matrix at specific positions according to a predetermined pattern, wherein tips of each of the plurality of the superabrasive particles protrude from the metal matrix to a uniform height.Type: GrantFiled: May 23, 2011Date of Patent: October 11, 2016Inventor: Chien-Min Sung
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Patent number: 9457449Abstract: A chemical mechanical polishing pad is provided containing: a polishing layer having a polishing surface; wherein the polishing layer comprises a continuous non-fugitive polymeric phase and a discontinuous non-fugitive polymeric phase; wherein the continuous non-fugitive polymeric phase has a plurality of periodic recesses; wherein the plurality of periodic recesses are occupied with the discontinuous non-fugitive polymeric phase; wherein the continuous non-fugitive polymeric phase has an open cell porosity of ?6 vol %; wherein the discontinuous non-fugitive polymeric phase contains an open cell porosity of ?10 vol %; and, wherein the polishing surface is adapted for polishing a substrate.Type: GrantFiled: June 26, 2015Date of Patent: October 4, 2016Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.Inventors: Teresa Brugarolas Brufau, Julia Kozhukh, Bainian Qian
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Patent number: 9168637Abstract: A vitrified superabrasive grain grinding stone includes superabrasive grains including a CBN abrasive grain as a main abrasive grain and a diamond abrasive grain as an auxiliary abrasive grain bonded together by use of a vitrified bond. The auxiliary abrasive grain has an average grain diameter equal to ½ to 1/10 of that of the main abrasive grain, and the auxiliary abrasive grain has a toughness value of 0.4 to 1 when that of the main abrasive grain is given as 1.Type: GrantFiled: January 18, 2013Date of Patent: October 27, 2015Assignee: NORITAKE CO., LIMITEDInventors: Akihiro Mizuno, Norio Imai, Kouichi Yoshimura, Takeshi Mishima
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Patent number: 9126303Abstract: Disclosed is a method for production of a laminate polishing pad which comprises a reduced number of steps and is excellent in productivity rate, and which causes no detachment between a polishing layer and a cushion layer and can prevent the groove clogging caused by a slurry or the like. Also disclosed is a laminate polishing pad produced by the method. A method for production of a laminate polishing pad, comprising the steps of: preparing a cell-dispersed urethane composition by a mechanical frothing process; ejecting the cell-dispersed urethane composition onto a cushion layer continuously while feeding the cushion layer; curing the cell-dispersed urethane composition while controlling the thickness of the composition evenly to form a polishing layer made of a polyurethane foam, thereby producing a long laminate sheet; and cutting the long laminate sheet.Type: GrantFiled: August 25, 2006Date of Patent: September 8, 2015Assignee: Toyo Tire & Rubber Co., Ltd.Inventors: Junji Hirose, Masato Doura
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Patent number: 9108301Abstract: A polycrystalline diamond compact (PDC) is fabricated using a process of delayed diffusion of a diffusion species (e.g., a metalloid) introduced from the back side of a cemented carbide further away from the diamond grit or from the flank side of the cemented carbide, as opposed to the side of the cemented carbide adjacent to the diamond grit. The process of fabricating the PDC includes depositing, in a metal container, a diamond grit, a cemented carbide, and a diffusion species, then applying a high pressure and high temperature (HPHT) to the contents of the metal container wherein (1) the binder of cemented carbide diffuses across the diamond grit, and (2) the diffusion species diffuses through the cemented carbide, and then through the diamond grit, thus providing a protective coating to the diamond grains of the PDC.Type: GrantFiled: March 15, 2013Date of Patent: August 18, 2015Assignee: Diamond Innovations, Inc.Inventors: Gary Martin Flood, Joel Vaughn
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Publication number: 20150121768Abstract: Cutting elements for use with earth-boring tools include a cutting table having a base surface and a substrate having a support surface. An intermediate structure and an adhesion layer extend between the base surface of the cutting table and the support surface of the substrate. Earth-boring tools include such cutting elements. Methods for fabricating cutting elements for use with earth-boring tools include forming an intermediate structure on and extending from a support surface of a substrate and adhering a cutting table comprising a superabrasive material to the support surface of the substrate.Type: ApplicationFiled: January 16, 2015Publication date: May 7, 2015Inventor: Nicholas J. Lyons
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Publication number: 20150113881Abstract: A layer of matrix powder is deposited within a mold opening. A layer of super-abrasive particles is then deposited over the matrix powder layer. The super-abrasive particles have a non-random distribution, such as being positioned at locations set by a regular and repeating distribution pattern. A layer of matrix powder is then deposited over the super-abrasive particles. The particle and matrix powder layer deposition process steps are repeated to produce a cell having alternating layers of matrix powder and non-randomly distributed super-abrasive particles. The cell is then fused, for example using an infiltration, hot isostatic pressing or sintering process, to produce an impregnated structure. A working surface of the impregnated structure that is oriented non-parallel (and, in particular, perpendicular) to the super-abrasive particle layers is used as an abrading surface for a tool.Type: ApplicationFiled: January 6, 2015Publication date: April 30, 2015Inventor: Michel De Reynal
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Patent number: 8997897Abstract: A layer of matrix powder is deposited within a mold opening. A layer of super-abrasive particles is then deposited over the matrix powder layer. The super-abrasive particles have a non-random distribution, such as being positioned at locations set by a regular and repeating distribution pattern. A layer of matrix powder is then deposited over the super-abrasive particles. The particle and matrix powder layer deposition process steps are repeated to produce a cell having alternating layers of matrix powder and non-randomly distributed super-abrasive particles. The cell is then fused, for example using an infiltration, hot isostatic pressing or sintering process, to produce an impregnated structure. A working surface of the impregnated structure that is oriented non-parallel (and, in particular, perpendicular) to the super-abrasive particle layers is used as an abrading surface for a tool.Type: GrantFiled: June 8, 2012Date of Patent: April 7, 2015Assignee: Varel Europe S.A.S.Inventor: Michel De Reynal
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Patent number: 8999025Abstract: Embodiments of the invention relate to methods of fabricating a polycrystalline diamond compacts and applications for such polycrystalline diamond compacts. In an embodiment, a method of fabricating a polycrystalline diamond body includes mechanically milling non-diamond carbon and a sintering aid material for a time and aggressiveness sufficient to form a plurality of carbon-saturated sintering aid particles and sintering a plurality of diamond particles in the presence of the plurality of carbon-saturated sintering aid particles to form the polycrystalline diamond body.Type: GrantFiled: February 16, 2012Date of Patent: April 7, 2015Assignee: US Synthetic CorporationInventors: David P. Miess, Michael A. Vail, C. Eugene McMurray
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Publication number: 20150089880Abstract: A method of manufacturing PDC drill bits includes inspecting a plurality of cutters. The method further includes inspecting a plurality of pockets of a bit body. A cutter of the plurality of cutters is assigned to a pocket of the plurality of pockets based on the inspection of the plurality of cutters and the inspection of the plurality of cutter pockets. A robot positions the cutter inside the pocket and applies heat to a brazing material to produce a molten brazing material within the pocket.Type: ApplicationFiled: September 27, 2013Publication date: April 2, 2015Applicant: VAREL EUROPE S.A.S.Inventors: Alfazazi Dourfaye, Gary M. Thigpen
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Publication number: 20150090502Abstract: A shear claw drill bit includes a bit body and a plurality of pick receptacles fixedly attached to the bit body. Each pick receptacle has a pick cavity. The shear claw drill bit further includes a plurality of picks. Each pick has a cutter cavity. The shear claw drill bit also includes a plurality of polycrystalline diamond compact (PDC) cutters. Each PDC cutter is disposed in the cutter cavity of a respective pick of the plurality of picks. A portion of each PDC cutter protrudes out of the cutter cavity of the respective pick.Type: ApplicationFiled: October 2, 2014Publication date: April 2, 2015Applicant: VAREL INTERNATIONAL IND., L.P.Inventor: William W. King
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Patent number: 8986408Abstract: Embodiments of the invention relate to polycrystalline diamond (“PCD”) fabricated by sintering a mixture including diamond particles and a selected amount of graphite particles, polycrystalline diamond compacts (“PDCs”) having a PCD table comprising such PCD, and methods of fabricating such PCD and PDCs. In an embodiment, a method includes providing a mixture including graphite particles present in an amount of about 0.1 weight percent (“wt %”) to about 20 wt % and diamond particles. The method further includes subjecting the mixture to a high-pressure/high-temperature process sufficient to form PCD.Type: GrantFiled: October 3, 2008Date of Patent: March 24, 2015Assignee: US Synthetic CorporationInventor: Mohammad N. Sani
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Patent number: 8986406Abstract: A polycrystalline diamond (PCD) with diamond grains includes a first zone of the diamond grains and a second zone of the diamond grains. The first zone forms a working surface and a first catalyzing material is disposed within voids of the diamond grains in the first zone. A second catalyzing material is bonded to the diamond grains disposed in the second zone. The first catalyzing material in the first zone is connected to the diamond grains disposed in the first zone less intimately than the second catalyzing material is bonded to the diamond grains in the second zone.Type: GrantFiled: December 6, 2013Date of Patent: March 24, 2015Inventor: Rusty Petree
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Publication number: 20150075082Abstract: A cutting element for an earth-boring drill bit may include a thermally stable cutting table comprising a polycrystalline diamond material. The polycrystalline diamond material may consist essentially of a matrix of diamond particles bonded to one another and a silicon, silicon carbide, or silicon and silicon carbide material located within interstitial spaces among interbonded diamond particles of the matrix of diamond particles. The cutting table may be at least substantially free of Group VIII metal or alloy catalyst material. The cutting element may further include a substrate and an adhesion material between and bonded to the cutting table and the substrate. The adhesion material may include diamond particles bonded to one another and to the cutting table and the substrate after formation of the preformed cutting table.Type: ApplicationFiled: September 10, 2014Publication date: March 19, 2015Inventor: Danny E. Scott
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Publication number: 20150075878Abstract: A cutting element for a cutting tool. The cutting element may be at least partially made from a composite material including a carbide material, a binder material, and a plurality of diamond particles. The carbide material may be from 55 wt % to 97 wt % of a total weight of the composite material. The binder material may be from 3 wt % to 20 wt % of the total weight of the composite material. The plurality of diamond particles may be from 0.1% to 25% of the total weight of the composite material. The carbide material and the binder material may be combined and sintered together prior to being combined with the plurality of diamond particles, such that the carbide material and the binder material form a plurality of pellets having an average cross-sectional length from 10 ?m to 250 ?m.Type: ApplicationFiled: September 16, 2014Publication date: March 19, 2015Inventors: SIKE XIA, XIN DENG
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Publication number: 20150072595Abstract: Methods and systems for evaluating and/or increasing CMP pad dresser performance are provided. In one aspect, for example, a method of identifying overly-aggressive superabrasive particles in a CMP pad dresser can include positioning a CMP pad dresser having a plurality of superabrasive particles on an indicator substrate such that at least a portion of the plurality of superabrasive particles of the CMP pad dresser contact the indicator substrate, and moving the CMP pad dresser across the indicator substrate in a first direction such that the portion of the plurality of superabrasive particles create a first marking pattern on the substrate, wherein the first marking pattern identifies a plurality of working superabrasive particles from among the plurality of superabrasive particles.Type: ApplicationFiled: March 24, 2014Publication date: March 12, 2015Inventor: Chien-Min Sung
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Publication number: 20150072601Abstract: Superabrasive tools and methods for making and using the same are provided. In one aspect, for example, a CMP pad dresser includes a first monolayer of superabrasive particles disposed on and coupled to one side of a metal support layer and a second monolayer of superabrasive particles disposed on and coupled to the metal support layer on an opposite side from the first monolayer. The superabrasive particles of the second monolayer are positioned to have substantially the same distribution as the superabrasive particles of the first monolayer.Type: ApplicationFiled: July 15, 2014Publication date: March 12, 2015Inventor: Chien-Min Sung
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Patent number: 8968435Abstract: A coated abrasive product including green, unfired abrasive aggregates having a generally spheroidal or toroidal shape, the aggregates formed from a composition comprising abrasive grit particles and a nanoparticle binder, wherein the abrasive aggregates are dispersed within a polymer resin coating, and wherein the coated abrasive product is capable of polishing an optical component, including ophthalmic lenses without the need to apply an abrasive slurry.Type: GrantFiled: March 29, 2013Date of Patent: March 3, 2015Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: James J. Manning, Mark E. Sternberg, Jianna Wang
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Patent number: 8961719Abstract: A method for making a treated super-hard structure, the method including providing a super-hard structure comprising super-hard material selected from polycrystalline cubic boron nitride (PCBN) material or thermally stable polycrystalline diamond (PCD) material; subjecting the super-hard structure to heat treatment at a treatment temperature of greater than 700 degrees centigrade at a treatment pressure at which the super-hard material is not thermodynamically stable, for a treatment period of at least about 5 minutes to produce the treated super-hard structure.Type: GrantFiled: May 25, 2012Date of Patent: February 24, 2015Assignee: Element Six LimitedInventors: Stig Åke Andersin, Bernd Heinrich Ries, Frank Friedrich Lachmann, Lars-Ivar Nilsson
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Patent number: 8945252Abstract: A coated abrasive laminate disc (100) has a backing (120) with glass (125) and woven fabrics (124) laminated with a thermoplastic adhesive (122) having a melting onset temperature in a range of from about 140° C. to 190° C. and comprising polyamide and/or polyurethane. Methods of making are the coated abrasive laminate discs (100) are also disclosed.Type: GrantFiled: August 7, 2008Date of Patent: February 3, 2015Assignee: 3M Innovative Properties CompanyInventor: Steven J. Keipert
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Publication number: 20150027788Abstract: Cutters mounted on bits for advancing boreholes are subject to extreme forces that can separate the cutter from the bit. A cutter backing element with a rearward extending lug and forward face can provide support to the cutter. The backing element is attached to the back face of the cutter and the lug of the backing element is received in a recess of the bit. The backing element can be brazed to the bit and the cutter. The lug is offset from a longitudinal axis of the backing element. Forces applied to the front of the cutter during drilling operations are transferred through the cutter to the backing element and to the bit through the offset lug.Type: ApplicationFiled: July 23, 2014Publication date: January 29, 2015Inventor: Jason Maw
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Patent number: 8932376Abstract: Thermally stable diamond-bonded compacts include a diamond-bonded body having a thermally stable region extending a distance below a diamond-bonded body surface. The thermally stable region comprises a matrix first phase of bonded together diamond crystals, and a second phase interposed within the matrix phase. At least some population of the second phase comprises a reaction product formed between an infiltrant material and the diamond crystals at high pressure/high temperature conditions. The diamond bonded body further includes a polycrystalline diamond region that extends a depth from the thermally stable region and has a microstructure comprising a polycrystalline diamond matrix phase and a catalyst material disposed within interstitial regions of the matrix phase. The compact includes a substrate attached to the diamond-bonded body.Type: GrantFiled: June 1, 2010Date of Patent: January 13, 2015Assignee: Smith International, Inc.Inventor: Stewart N. Middlemiss
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Publication number: 20150007505Abstract: A method of making a combination tool including a mining drill bit and reamer. The combination tool includes drill bit body having a plurality of cutting segments attached thereto, a reamer body having a plurality of reaming segments attached thereto, and the drill bit body and the reamer body being configured to selectively attach to the one another. The cutting segments and reamer segments being attached by laser welding to the drill bit body and reamer body, respectively.Type: ApplicationFiled: June 27, 2014Publication date: January 8, 2015Inventors: Karl H. Moller, Thomas G. Ruffner
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Publication number: 20150004879Abstract: A method for producing a laminated polishing pad, which is free from warpage and does not cause peeling between a polishing layer and a cushion layer during polishing, includes the steps of: laminating a hot-melt adhesive sheet to a surface of a cushion layer with a base material in which a thermoplastic resin base material is provided peelably on one surface of the cushion layer, on which the thermoplastic resin base material is not provided; heating the laminated hot-melt adhesive sheet to be melted or softened; laminating a polishing layer on the melted or softened hot-melt adhesive to prepare a laminate; cutting the laminate to the size of the polishing layer to prepare a laminated polishing sheet; and peeling the thermoplastic resin base material from the laminated polishing sheet.Type: ApplicationFiled: January 9, 2013Publication date: January 1, 2015Inventor: Yoshiyuki Nakai
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Publication number: 20150000988Abstract: Position indication in multiplexed downhole well tools. A method of selectively actuating and indicating a position in a well includes selecting at least one well tool from among multiple well tools for actuation by flowing direct current in one direction through a set of conductors in the well, the well tool being deselected for actuation when direct current flows through the set of conductors an opposite direction; and detecting a varying resistance across the set of conductors as the selected well tool is actuated, the variation in resistance providing an indication of a position of a portion of the selected well tool.Type: ApplicationFiled: September 10, 2013Publication date: January 1, 2015Inventor: Shilin Chen
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Publication number: 20150000201Abstract: A method of attaching a pre-sintered body of polycrystalline diamond material to a substrate along an interface therebetween, the substrate being formed of cemented carbide and a metal binder phase dispersed therein, comprises placing a layer comprising one or more elements or alloys thereof on the interface on one or other of the body of polycrystalline diamond material or substrate; the one or more elements being selected to form a eutectic mixture with the metal in the binder phase, the eutectic mixture having a lower melting point than the melting point of the metal in the binder phase of the substrate.Type: ApplicationFiled: December 13, 2012Publication date: January 1, 2015Inventor: Kaveshini Naidoo
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Publication number: 20140378032Abstract: The purpose of the present invention is to provide a laminated polishing pad that can be flatly bonded to a polishing platen even if it is large in size. This laminated polishing pad, comprising a polishing layer and a support layer with an adhesive member interposed therebetween, wherein the polishing layer contains 0.5 to 5% by weight of a hydrophilic substance; the support layer is a layer obtained by integrally molding a cushion layer and a resin film having a thermal dimensional change rate of 1.3 to 12.6%; the laminated polishing pad has a concavely warped form in the polishing layer side; and the laminated polishing pad has an average warp amount of 3 to 50 mm at the peripheral edge of the pad.Type: ApplicationFiled: December 6, 2012Publication date: December 25, 2014Inventor: Atsushi Kazuno
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Publication number: 20140353040Abstract: Cutting elements for use with earth-boring tools include a cutting table having at least two sections where a boundary between the at least two sections is at least partially defined by a discontinuity formed in the cutting table. Earth-boring tools including a tool body and a plurality of cutting elements carried by the tool body. The cutting elements include a cutting table secured to a substrate. The cutting table includes a plurality of adjacent sections, each having a discrete cutting edge where at least one section is configured to be selectively detached from the substrate in order to substantially expose a cutting edge of an adjacent section. Methods for fabricating cutting elements for use with an earth-boring tool including forming a cutting table comprising a plurality of adjacent sections.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Inventors: Danny E. Scott, Timothy K. Marvel, Yavuz Kadioglu, Michael R. Wells
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Publication number: 20140357170Abstract: A chemical mechanical polishing pad is provided containing: a polishing layer; a plug in place endpoint detection window block; a rigid layer; and, a hot melt adhesive bonding the polishing layer to the rigid layer; wherein the polishing layer comprises the reaction product of ingredients, including: a polyfunctional isocyanate; and, a curative package; wherein the curative package contains an amine initiated polyol curative and a high molecular weight polyol curative; wherein the polishing layer exhibits a density of greater than 0.6 g/cm3; a Shore D hardness of 5 to 40; an elongation to break of 100 to 450%; and, a cut rate of 25 to 150 ?m/hr; and, wherein the polishing layer has a polishing surface adapted for polishing the substrate. Also provide are methods of making and using the chemical mechanical polishing pad.Type: ApplicationFiled: May 31, 2013Publication date: December 4, 2014Inventors: Bainian Qian, Michelle K. Jensen, Marty W. DeGroot, Angus Repper, James Murnane, Jeffrey James Hendron, John G. Nowland, David B. James, Fengji Yeh
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Patent number: 8883288Abstract: An abrasive article includes a backing having a major surface, an adhesion promoting layer overlying the major surface of the backing, and a make layer directly contacting the adhesion promoting layer. The adhesion promoting layer has a thickness of at least about 10 microns and is formed of a polar thermoplastic material, a cross-linkable polymer, or blends thereof.Type: GrantFiled: August 1, 2008Date of Patent: November 11, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Anthony C. Gaeta, Paul S. Goldsmith, Kamran Khatami, Pranjal Shah
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Patent number: 8882868Abstract: A bond matrix for metal bonded abrasive tools includes a metal bond system, porosity and an optional filler. Tools according to embodiments of the invention exhibit long tool life, produce an acceptable quality of cut and can have self-dressing properties. The bond matrix can be used, for example, in abrasives tools configured for the electronics industry, such as 1A8 wheels for slicing ball grid arrays (BGAs) and other such slicing operations.Type: GrantFiled: June 30, 2009Date of Patent: November 11, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Parul Walia, Srinivasan Ramanath, Richard W. Hall
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Publication number: 20140318024Abstract: Partially formed earth-boring rotary drill bits comprise a first less than fully sintered particle-matrix component having at least one recess, and at least a second less than fully sintered particle-matrix component disposed at least partially within the at least one recess. Each less than fully sintered particle-matrix component comprises a green or brown structure including compacted hard particles, particles comprising a metal alloy matrix material, and an organic binder material. The at least a second less than fully sintered particle-matrix component is configured to shrink at a slower rate than the first less than fully sintered particle-matrix component due to removal of organic binder material from the less than fully sintered particle-matrix components in a sintering process to be used to sinterbond the first less than fully sintered particle-matrix component to the first less than fully sintered particle-matrix component.Type: ApplicationFiled: July 7, 2014Publication date: October 30, 2014Inventors: Redd H. Smith, Nicholas J. Lyons
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Patent number: 8871331Abstract: A coated abrasive article includes a backing having a surface, a plurality of abrasive regions overlying the surface in each of the first and second portions, and at least one macro-channel. The surface of the backing has a shape defined by an outer contour. A bisecting axis divides the shape into first and second portions. Each abrasive region includes a binder and a plurality of abrasive grains in contact with the binder. The abrasive grains have an average grain size of not greater than about 200 microns. The at least one macro-channel defines a passageway extending between a pair of adjacent abrasive regions and terminating at openings at the outer contour within each of the first and second portions. The macro-channel has an average channel width of between about 0.1 millimeters to about 5 millimeters and is substantially free of the binder and the abrasive grains.Type: GrantFiled: December 22, 2010Date of Patent: October 28, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventor: Anuj Seth
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Patent number: 8858870Abstract: A method of making an article of manufacture includes positioning a cemented carbide piece comprising at least 5% of the total volume of the article of manufacture, and, optionally, a non-cemented carbide piece in a void of a mold in predetermined positions to partially fill the void and define an unoccupied space. Inorganic particles are added to the mold to partially fill the unoccupied space and provide a remainder space. The cemented carbide piece, the non-cemented carbide piece if present, and the hard particles are heated and infiltrated with a molten metal or a metal alloy. The melting temperature of the molten metal or the metal alloy is less than the melting temperature of the inorganic particles. The molten metal or metal alloy in the remainder space solidifies and binds the cemented carbide piece, the non-cemented carbide piece if present, and the inorganic particles to form the article of manufacture.Type: GrantFiled: June 8, 2012Date of Patent: October 14, 2014Assignee: Kennametal Inc.Inventors: Prakash K. Mirchandani, Morris E. Chandler, Michale E. Waller, Heath C. Coleman
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Patent number: 8858663Abstract: Methods of forming cutting elements for earth-boring tools include providing a barrier material between a first powder and a second powder each comprising diamond grains, and subjecting the powders and barrier material to high temperature and high pressure conditions to form polycrystalline diamond material. The formation of the polycrystalline diamond material is catalyzed, and catalytic material may be hindered from migrating across the layer of barrier material. Cutting elements for use in earth-boring tools include a barrier material disposed between a first layer of polycrystalline diamond material and a second layer of polycrystalline diamond material. Earth-boring tools include one or more such cutting elements for cutting an earth formation.Type: GrantFiled: March 26, 2012Date of Patent: October 14, 2014Assignee: Baker Hughes IncorporatedInventors: Kurtis Schmitz, Danny E. Scott
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Publication number: 20140299387Abstract: A cutting element for use in a drilling bit and/or a milling bit having a cutter body made of a substrate having an upper surface, and a superabrasive layer overlying the upper surface of the substrate. The cutting element further includes a sleeve extending around a portion of a side surface of the superabrasive layer and a side surface of the substrate, wherein the sleeve exerts a radially compressive force on the superabrasive layer.Type: ApplicationFiled: June 18, 2014Publication date: October 9, 2014Inventors: Anthony A. DiGiovanni, Nicholas J. Lyons, Matthew S. Hale, Konstantin E. Morozov, John H. Liversage, Danny E. Scott, L. Allen Sinor
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Publication number: 20140298862Abstract: Provided are a pressure-sensitive adhesive tape, a polishing pad, a method of manufacturing the same, a polishing device and a method of manufacturing a glass substrate. The illustrative pressure-sensitive adhesive tape may be a pressure-sensitive adhesive tape for a polishing material. The pressure-sensitive adhesive tape may be effectively fixed to a surface plate without bubbles, and have excellent resistance to water and a polishing solution and shear strength applied in a polishing process. In addition, the pressure-sensitive adhesive tape may be easily removed from a carrier or surface plate for a polishing pad without residues after polishing.Type: ApplicationFiled: June 23, 2014Publication date: October 9, 2014Inventors: Se Woo YANG, Suk Ky CHANG, Min Soo PARK
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Publication number: 20140302757Abstract: A rotary dresser includes a cored bar, an electroformed layer, and superabrasive grains fixed to an outer circumferential surface of the electroformed layer, and a plurality of island regions in which a plurality of superabrasive grains is gathered is provided at certain intervals. Since a plurality of the island regions in which a plurality of the superabrasive grains is gathered is provided at certain intervals, the same degree of dressing accuracy can be obtained as in a case in which expensive large superabrasive grains are fixed at a low density using cheap and small superabrasive grains, it is possible to decrease the contact area of a single superabrasive grain, and favorable cutting quality can be obtained.Type: ApplicationFiled: October 24, 2012Publication date: October 9, 2014Inventors: Kunihito Inamori, Manabu Sato