Patents Assigned to SAINT-GOBAIN ABRASIF
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Patent number: 9982175Abstract: An abrasive article can include a body including a bond material and abrasive particles contained within the bond material. The abrasive particles can include nanocrystalline alumina. The bond material can include an inorganic material including a ceramic.Type: GrantFiled: December 30, 2015Date of Patent: May 29, 2018Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Nilanjan Sarangi, Yang Zhong, Sandhya Jayaraman Rukmani, Ralph Bauer, Stefan Vujcic
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Patent number: 9914197Abstract: An abrasive assembly including a back-up pad having a central axis, an engagement component, and an alignment element; and an abrasive disc having a central axis, the abrasive disc engaged with the back-up pad, the abrasive disc including an alignment element; wherein the alignment element of the back-up pad aligns with the alignment element of the abrasive disc, wherein the engagement component of the back-up pad engages with the abrasive disc, and wherein the back-up pad and the abrasive disc have a concentricity tolerance, C, as measured between the central axis of the back-up pad and the central axis of the abrasive disc, of no greater than about 0.1.Type: GrantFiled: December 9, 2014Date of Patent: March 13, 2018Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Godofredo Vela, Brian J. Wahl
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Patent number: 9914199Abstract: An abrasive article including a disc including a central axis; a primary outer edge substantially coaxial with the central axis and having a circumferential length, L1; a secondary outer edge substantially coaxial with the central axis and coplanar with the primary outer edge, the secondary outer edge having a circumferential length, L2, wherein L2 is less than L1; and a structurally weakened portion extending substantially adjacent to the secondary outer edge. In an embodiment, the abrasive article further includes a shedable portion configured to rupture the structurally weakened portion when the shedable portion is removed from the abrasive disc. In another aspect, an abrasive article having an initial outer circumferential length, LI, and a length of deliberately exposable circumferential edge surface, LOE, wherein LOE is greater than LI.Type: GrantFiled: December 9, 2014Date of Patent: March 13, 2018Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Godofredo Vela, Brian J. Wahl
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Patent number: 9902045Abstract: A method of removing material from one or more workpieces including moving a coated abrasive article having a plurality of shaped abrasive particles relative to a surface of the one or more workpieces at high material removal rates.Type: GrantFiled: May 29, 2015Date of Patent: February 27, 2018Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Kristin Breder, Sujatha Iyengar, Christopher Arcona
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Patent number: 9566689Abstract: A fixed abrasive article including a blend of abrasive particles having a first type of shaped abrasive particle comprising a first height (h1), a second type of shaped abrasive particle comprising a second height (h2) less than the first height, where the blend of abrasive particles includes a first content of the first type of shaped abrasive particles and a second content of the second type of shaped abrasive particle, and the first content is different as compared to the second content.Type: GrantFiled: December 22, 2014Date of Patent: February 14, 2017Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventor: Sujatha Iyengar
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Patent number: 9434051Abstract: An abrasive article comprising a nonwoven substrate material having a top surface and a bottom surface; a woven cloth; a thermoplastic fastener; and a plurality of abrasive particles, wherein the cloth layer is adhered to the top surface of the nonwoven substrate material; wherein the thermoplastic fastener is disposed on the cloth, and wherein the plurality of abrasive particles are disposed on at least the bottom surface of the nonwoven abrasive substrate.Type: GrantFiled: December 12, 2014Date of Patent: September 6, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Shyiguei Hsu, Dan M. Villareal, Julienne C. LaBrecque, Scott Kilinski, Vivek Cheruvari Kottieth Raman, Anuj Seth, Jane Chen-Liang, Fernando J. Ramirez, Victor D. Perez
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Patent number: 9409279Abstract: A bonded abrasive tool includes a bonded abrasive body having a bond matrix material with an organic bond material, abrasive grains contained within the bond matrix material, and chopped fiber bundles within the bond matrix material. The tool further has a porosity within the bonded abrasive body, wherein a majority of the porosity includes pores surrounding the chopped fiber bundles.Type: GrantFiled: August 21, 2013Date of Patent: August 9, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Konstantin S. Zuyev, Walter Strandgaard, Joel A. Fife, Muthu Jeevanantham
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Patent number: 9381618Abstract: A grinding tool includes a shank having an axis, and at least two abrasive portions mounted directly to and in contact with the shank without a hub therebetween. Each of the abrasive portions has a substantially identical profile formed therein.Type: GrantFiled: April 22, 2014Date of Patent: July 5, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Rajesh Kaul, John Tunstall, Shivshankar Sivasubramanian, Srinivasan Ramanath, Rachana Upadhyay, Arup K Khaund, Yinggang Tian, John Pearlman, Michael D. Cheng, Cecile O. Mejean
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Patent number: 9375826Abstract: An abrasive article including a substrate made of a wire, abrasive particles affixed to the substrate, the abrasive particles having a first coating layer overlying the abrasive particles, and a second coating layer different than the first coating layer overlying the first coating layer. The abrasive article further including a bonding layer overlying the substrate and abrasive particles.Type: GrantFiled: September 14, 2012Date of Patent: June 28, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Yinggang Tian, Arup K. Khaund, John Pearlman
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Patent number: 9358669Abstract: A coated abrasive product that includes a polymer binder comprising a co-polyester having a bisphenol moiety in the backbone of the co-polyester. The coated abrasive product is capable of finishing coated surfaces and repairing defects in coated surfaces, including surfaces coated with automotive primers, paints, clear coats, and combinations thereof.Type: GrantFiled: June 28, 2013Date of Patent: June 7, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: William C. Rice, James J. Manning
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Patent number: 9335198Abstract: A method of using a paint cup assembly with a paint sprayer includes filling a paint cup assembly with paint, closing the paint cup assembly, inverting the paint cup assembly, and engaging the paint cup assembly with the paint sprayer. The paint cup assembly includes a spring loaded valve to prevent paint from leaking from the paint cup assembly when the paint cup assembly is inverted.Type: GrantFiled: May 4, 2012Date of Patent: May 10, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Biagio P. Pellegrino, Clemens E. Zoellner, Thomas R. Nixon, Christopher J. Chilton
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Patent number: 9321947Abstract: A coated abrasive product includes green, unfired abrasive aggregates having a generally spheroidal or toroidal shape, the aggregates formed from a composition comprising abrasive grit particles, a nanoparticle binder, a sulfosuccinate, and a crosslinking, wherein the abrasive aggregates are dispersed within a polymer resin coating comprising a mixture of copolyester resin. The coated abrasive product is capable of finishing coated surfaces and repairing defects in coated surfaces, including surfaces coated with automotive primers, paints, clear coats, and combinations thereof.Type: GrantFiled: January 10, 2013Date of Patent: April 26, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: James J. Manning, Jianna Wang, Charles G. Herbert, William C. Rice, Anuj Seth
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Patent number: 9278431Abstract: An abrasive article configured to grind a workpiece having a fracture toughness of less than about 6 MPa·m ½ includes a body comprising abrasive particles contained within a bond material comprising a metal, wherein the body comprises a ratio of VAG/VBM of at least about 1.3, wherein VAG is a volume percent of abrasive particles within a total volume of the body and VBM is a volume percent of bond material within the total volume of the body, and wherein the abrasive particles have an average particle size of 1 to 45 microns.Type: GrantFiled: December 30, 2013Date of Patent: March 8, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Srinivasan Ramanath, Kenneth A. Saucier, Rachana Upadhyay, Cong Wang
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Patent number: 9278429Abstract: An abrasive article includes a substrate comprising an elongated body, a tacking layer comprising tin overlying the substrate, and a first type of abrasive particle comprising an agglomerated particle overlying the tacking layer.Type: GrantFiled: June 28, 2013Date of Patent: March 8, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Paul W. Rehrig, Yinggang Tian, Arup K. Khaund, Srinivasan Ramanath, Mary J. Puzemis, John Pearlman
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Patent number: 9266221Abstract: An abrasive article includes a support, a first polymeric binder, a second polymeric binder, and abrasive particles. The support includes a plurality of nonwoven layers. A method of forming an abrasive article includes providing a support including, applying a first coating of the first polymeric binder to the support, applying superabrasive particles to the coated support, applying a layer of a second polymeric binder overlying the superabrasive particles. The method further includes compressing the support and applying heat to cure the first polymeric binder. A method of preparing a work piece includes applying a thermal spray coating to the work piece, and polishing the thermal spray coating with the abrasive article.Type: GrantFiled: October 6, 2011Date of Patent: February 23, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Shyiguei Hsu, Alejandro Gomez, Fabio de A. Pinto, John E. Stockton
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Patent number: 9266219Abstract: An abrasive article configured to grind a workpiece having a fracture toughness at least about 7 MPa·m0.5 includes a body comprising abrasive particles contained within a bond material comprising a metal, wherein the body comprises a ratio of VAG/VBM of at least about 1.3, wherein VAG is a volume percent of abrasive particles within a total volume of the body and VBM is a volume percent of bond material within the total volume of the body, and wherein the abrasive particles have an average particle size of 40 to 60 microns.Type: GrantFiled: December 30, 2013Date of Patent: February 23, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Srinivasan Ramanath, Kenneth A. Saucier, Rachana Upadhyay, Cong Wang
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Patent number: 9254553Abstract: An abrasive article includes a body having abrasive grains contained within a bond material comprising a metal or metal alloy, wherein the body comprises a ratio of VAG/VBM of at least about 1.3, wherein VAG is the volume percent of abrasive grains within the total volume of the body and VBM is the volume percent of bond material within the total volume of the body.Type: GrantFiled: March 21, 2014Date of Patent: February 9, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Srinivasan Ramanath, Kenneth A. Saucier, Rachana Upadhyay
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Patent number: 9254552Abstract: An abrasive article including a substrate having an elongated body, a tacking layer overlying the substrate, and a first type of abrasive particle overlying the tacking layer and defining a first abrasive particle concentration at least about 10 particles per mm of substrate.Type: GrantFiled: June 28, 2013Date of Patent: February 9, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Yinggang Tian, Paul W. Rehrig, Arup K. Khaund, Avanti Jain, Wei Che, Susanne Liebelt, Vincent Tési
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Patent number: 9248583Abstract: An abrasive article may include a substrate, a tacking film overlying the substrate, abrasive particles that may include a coating layer bonded to the tacking film such that a bond between the coating layer and the tacking film defines a metallic bonding region, and a bonding layer overlying the abrasive particles and the tacking film.Type: GrantFiled: December 30, 2011Date of Patent: February 2, 2016Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Yinggang Tian, Arup K. Khaund, Krishnamoorthy Subramanian, John Pearlman
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Patent number: D812112Type: GrantFiled: July 28, 2015Date of Patent: March 6, 2018Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventor: David Mansfield