Patents Assigned to SAINT-GOBAIN ABRASIF
  • Patent number: 9982175
    Abstract: 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: Grant
    Filed: December 30, 2015
    Date of Patent: May 29, 2018
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Nilanjan Sarangi, Yang Zhong, Sandhya Jayaraman Rukmani, Ralph Bauer, Stefan Vujcic
  • Patent number: 9914197
    Abstract: 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: Grant
    Filed: December 9, 2014
    Date of Patent: March 13, 2018
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Godofredo Vela, Brian J. Wahl
  • Patent number: 9914199
    Abstract: 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: Grant
    Filed: December 9, 2014
    Date of Patent: March 13, 2018
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Godofredo Vela, Brian J. Wahl
  • Patent number: 9902045
    Abstract: 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: Grant
    Filed: May 29, 2015
    Date of Patent: February 27, 2018
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Kristin Breder, Sujatha Iyengar, Christopher Arcona
  • Patent number: 9566689
    Abstract: 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: Grant
    Filed: December 22, 2014
    Date of Patent: February 14, 2017
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventor: Sujatha Iyengar
  • Patent number: 9434051
    Abstract: 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: Grant
    Filed: December 12, 2014
    Date of Patent: September 6, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: 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
  • Patent number: 9409279
    Abstract: 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: Grant
    Filed: August 21, 2013
    Date of Patent: August 9, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Konstantin S. Zuyev, Walter Strandgaard, Joel A. Fife, Muthu Jeevanantham
  • Patent number: 9381618
    Abstract: 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: Grant
    Filed: April 22, 2014
    Date of Patent: July 5, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Rajesh Kaul, John Tunstall, Shivshankar Sivasubramanian, Srinivasan Ramanath, Rachana Upadhyay, Arup K Khaund, Yinggang Tian, John Pearlman, Michael D. Cheng, Cecile O. Mejean
  • Patent number: 9375826
    Abstract: 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: Grant
    Filed: September 14, 2012
    Date of Patent: June 28, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Yinggang Tian, Arup K. Khaund, John Pearlman
  • Patent number: 9358669
    Abstract: 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: Grant
    Filed: June 28, 2013
    Date of Patent: June 7, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: William C. Rice, James J. Manning
  • Patent number: 9335198
    Abstract: 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: Grant
    Filed: May 4, 2012
    Date of Patent: May 10, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Biagio P. Pellegrino, Clemens E. Zoellner, Thomas R. Nixon, Christopher J. Chilton
  • Patent number: 9321947
    Abstract: 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: Grant
    Filed: January 10, 2013
    Date of Patent: April 26, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: James J. Manning, Jianna Wang, Charles G. Herbert, William C. Rice, Anuj Seth
  • Patent number: 9278431
    Abstract: 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: Grant
    Filed: December 30, 2013
    Date of Patent: March 8, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Srinivasan Ramanath, Kenneth A. Saucier, Rachana Upadhyay, Cong Wang
  • Patent number: 9278429
    Abstract: 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: Grant
    Filed: June 28, 2013
    Date of Patent: March 8, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Paul W. Rehrig, Yinggang Tian, Arup K. Khaund, Srinivasan Ramanath, Mary J. Puzemis, John Pearlman
  • Patent number: 9266221
    Abstract: 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: Grant
    Filed: October 6, 2011
    Date of Patent: February 23, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Shyiguei Hsu, Alejandro Gomez, Fabio de A. Pinto, John E. Stockton
  • Patent number: 9266219
    Abstract: 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: Grant
    Filed: December 30, 2013
    Date of Patent: February 23, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Srinivasan Ramanath, Kenneth A. Saucier, Rachana Upadhyay, Cong Wang
  • Patent number: 9254553
    Abstract: 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: Grant
    Filed: March 21, 2014
    Date of Patent: February 9, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Srinivasan Ramanath, Kenneth A. Saucier, Rachana Upadhyay
  • Patent number: 9254552
    Abstract: 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: Grant
    Filed: June 28, 2013
    Date of Patent: February 9, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Yinggang Tian, Paul W. Rehrig, Arup K. Khaund, Avanti Jain, Wei Che, Susanne Liebelt, Vincent Tési
  • Patent number: 9248583
    Abstract: 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: Grant
    Filed: December 30, 2011
    Date of Patent: February 2, 2016
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Yinggang Tian, Arup K. Khaund, Krishnamoorthy Subramanian, John Pearlman
  • Patent number: D812112
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: March 6, 2018
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventor: David Mansfield