Patents by Inventor Muthu Jeevanantham
Muthu Jeevanantham has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10195717Abstract: An abrasive tool can have a body including an abrasive portion with abrasive grains contained within a matrix material. A first reinforcing member can be contained within the body. The body can also include a porosity variation difference through at least half of a thickness of the body of not greater than 250% from a mean porosity of the body.Type: GrantFiled: August 3, 2010Date of Patent: February 5, 2019Assignees: SAINT-GOBAIN ABRASIVES, SAINT-GOBAIN ABRASIFSInventors: Emmanuel C. Francois, Konstantin S. Zuyev, Muthu Jeevanantham, Anne M. Bonner, Michael W. Klett, Dean S. Matsumoto
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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: 9073177Abstract: An abrasive article including a body having a bond material and abrasive particles contained in the bond material, the abrasive particles including a composite composition having alumina (Al2O3), iron oxide (Fe2O3), and silica (SiO2). The abrasive particles further include an aspect ratio of at least 1:1 and an average porosity in a range of about 0 vol % to not greater than about 15 vol %.Type: GrantFiled: July 30, 2013Date of Patent: July 7, 2015Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Lingyu Li, Muthu Jeevanantham, Andre Collin, Renaud Fix
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Patent number: 8999026Abstract: An abrasive article having an abrasive body including abrasive grains contained within a bond material, wherein the abrasive grains comprise microcrystalline alumina, and wherein the bond material includes less than about 1.0 mol % phosphorous oxide (P2O5), and a ratio measured in mol % between a total content of sodium oxide (Na2O) and a total content of potassium oxide (K2O) defined by [K2O/Na2O] having a value greater than about 0.5.Type: GrantFiled: November 14, 2013Date of Patent: April 7, 2015Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Gilles Querel, Sandhya Jayaraman Rukmani, Muthu Jeevanantham, Rosemarie Bot-Schulz, Kelley McNeal, Nilanjan Sarangi
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Publication number: 20150033636Abstract: An abrasive article may be configured to work titanium and may comprise a body including a bond material comprising an organic material. A first type of abrasive particles may be contained within the bond material and comprise fused alumina. The body may comprise a burnout modulus of rupture (MOR) of at least about 1.6 MPa.Type: ApplicationFiled: August 1, 2014Publication date: February 5, 2015Inventors: Lingyu Li, Muthu Jeevanantham, Sena Ada, Scott Leonard
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Patent number: 8808413Abstract: An abrasive tool having a body including an abrasive portion having abrasive grains contained within a matrix material and porosity characterized by a bimodal distribution of pores including large pores having an average large pore size (Pl) and small pores having an average small pore size (Ps), wherein Pl>Ps. The body of the abrasive tool further includes a first reinforcing member contained within the abrasive portion, and a percent thermal expansion over a temperature range for 25° C. to 450° C. of not greater than about 0.7%.Type: GrantFiled: August 3, 2010Date of Patent: August 19, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Emmanuel C. Francois, Konstantin S. Zuyev, Muthu Jeevanantham, Anne M. Bonner, Michael W. Klett, Dean S. Matsumoto
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Patent number: 8784521Abstract: An abrasive article includes an abrasive body having abrasive grains within a bond material, the abrasive body further including a spinel material disposed at an interface between the abrasive grains and the bond matrix.Type: GrantFiled: December 2, 2010Date of Patent: July 22, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Gilles Querel, Sandhya Jayaraman Rukmani, Muthu Jeevanantham, Kelley McNeal, Stephen E. Fox
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Publication number: 20140137482Abstract: An abrasive article has a body including an abrasive portion with a bond material, abrasive particles contained in the bond material, and a reinforcing member contained in the body. The abrasive portion can have a fracture propagation toughness WOF of at least about 5 kJ/m2. The reinforcing member can have openings with an open area of not greater than about 100 mm2 within a major plane of the reinforcing member.Type: ApplicationFiled: November 20, 2013Publication date: May 22, 2014Applicants: Saint-Gobain Abrasifs, Saint-Gobain Abrasives, Inc.Inventors: Lingyu Li, Muthu Jeevanantham, Anne M. Bonner, Dean S. Matsumoto, Piotr Miziak, Andre Collin, Alejandro Javier Mantecon Torres, Stefano Francovigh
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Patent number: 8721751Abstract: An abrasive article including an abrasive body having abrasive grains made of microcrystalline alumina contained within a bond material, wherein the bond material comprises a total content of alumina of at least about 15 mol %.Type: GrantFiled: December 2, 2010Date of Patent: May 13, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Gilles Querel, Sandhya Jayaraman Rukmani, Muthu Jeevanantham, Kelley McNeal, Maike Hillers
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Patent number: 8696409Abstract: A self-bonded foamed abrasive article and a method of machining using such an article. The machining method includes providing a workpiece having a worksurface and removing material from the worksurface by moving an abrasive relative to the worksurface, wherein the abrasive comprises a foamed abrasive body consisting of abrasive grains and a porosity of at least about 66 vol %.Type: GrantFiled: December 24, 2012Date of Patent: April 15, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Muthu Jeevanantham, Xavier Orlhac
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Publication number: 20140069021Abstract: An abrasive article having an abrasive body including abrasive grains contained within a bond material, wherein the abrasive grains comprise microcrystalline alumina, and wherein the bond material includes less than about 1.0 mol % phosphorous oxide (P2O5), and a ratio measured in mol % between a total content of sodium oxide (Na2O) and a total content of potassium oxide (K2O) defined by [K2O/Na2O] having a value greater than about 0.5.Type: ApplicationFiled: November 14, 2013Publication date: March 13, 2014Applicants: Saint-Gobain Abrasifs, Saint-Gobain Abrasives, Inc.Inventors: Gilles Querel, Sandhya Jayaraman Rukmani, Muthu Jeevanantham, Rosemarie Bot-Schulz, Kelley McNeal, Nilanjan Sarangi
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Publication number: 20140033617Abstract: An abrasive article including a body having a bond material and abrasive particles contained in the bond material, the abrasive particles including a composite composition having alumina (Al2O3), iron oxide (Fe2O3), and silica (SiO2). The abrasive particles further include an aspect ratio of at least 1:1 and an average porosity in a range of about 0 vol % to not greater than about 15 vol %.Type: ApplicationFiled: July 30, 2013Publication date: February 6, 2014Inventors: Lingyu Li, Muthu Jeevanantham, Andre Collin, Renaud Fix
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Publication number: 20140020304Abstract: A bonded abrasive tool includes a bonded abrasive body having a bond matrix material comprising 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 comprises pores surrounding the chopped fiber bundles.Type: ApplicationFiled: August 21, 2013Publication date: January 23, 2014Inventors: Konstantin S. Zuyev, Walter Strandgaard, Joel A. Fife, Muthu Jeevanantham
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Patent number: 8617273Abstract: An abrasive article having an abrasive body including abrasive grains contained within a bond material, wherein the abrasive grains comprise microcrystalline alumina, and wherein the bond material includes less than about 1.0 mol % phosphorous oxide (P2O5), and a ratio measured in mol % between a total content of sodium oxide (Na2O) and a total content of potassium oxide (K2O) defined by [K2O/Na2O] having a value greater than about 0.5.Type: GrantFiled: October 8, 2010Date of Patent: December 31, 2013Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Gilles Querel, Sandhya Jayaraman Rukmani, Muthu Jeevanantham, Rosemarie Bot-Schulz, Kelley McNeal, Nilanjan Sarangi
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Publication number: 20130337730Abstract: An abrasive cutting tool has a body in the shape of a large diameter disk having an outer diameter of at least about 60 centimeters, and an aspect ratio defined as a ratio between the outer diameter to an axial thickness of the body of at least about 10:1. The body includes an abrasive portion having a bond material and abrasive particles contained within the bond material. The abrasive particles comprise brown fused alumina. A first filler is contained within the abrasive portion comprising iron and sulfur having an average particle size of not greater than about 40 microns.Type: ApplicationFiled: June 6, 2013Publication date: December 19, 2013Inventors: Siddharth SRINIVASAN, Charles Deleuze, Andrew B. Schoch, Kelly McNeal, Arup K. Khaund, Muthu Jeevanantham, Lingyu Li
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Patent number: 8540785Abstract: A bonded abrasive tool includes a bonded abrasive body having a bond matrix material including 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 8, 2012Date of Patent: September 24, 2013Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Konstantin S. Zuyev, Walter Strandgaard, Joel A. Fife, Muthu Jeevanantham
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Patent number: 8475553Abstract: A bonded abrasive tool comprises a blend of abrasive grains and a bond component. The blend of abrasive grains comprises a filamentary sol-gel alumina abrasive grain and agglomerated abrasive grain granules. A bonded abrasive tool comprising an agglomerate of filamentary sol-gel alumina abrasive and non-filamentary abrasive grains, and a bond component is also disclosed. The filamentary sol-gel alumina abrasive grain has a length-to-cross-sectional-width aspect ratio of greater than 1.0. The agglomerated abrasive grain granules comprise a plurality of abrasive grains held in a three-dimensional shape by a binding material. A method of making such a bonded abrasive tool as described above is also disclosed.Type: GrantFiled: April 8, 2010Date of Patent: July 2, 2013Assignee: Saint-Gobain Abrasives, Inc.Inventors: Xavier Orlhac, Muthu Jeevanantham, Russell Krause, Mianxue Wu
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Publication number: 20130109279Abstract: A self-bonded foamed abrasive article and a method of machining using such an article. The machining method includes providing a workpiece having a worksurface and removing material from the worksurface by moving an abrasive relative to the worksurface, wherein the abrasive comprises a foamed abrasive body consisting of abrasive grains and a porosity of at least about 66 vol %.Type: ApplicationFiled: December 24, 2012Publication date: May 2, 2013Inventors: Muthu JEEVANANTHAM, Xavier ORLHAC
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Patent number: 8357028Abstract: A self-bonded foamed abrasive article and a method of machining using such an article. The machining method includes providing a workpiece having a worksurface and removing material from the worksurface by moving an abrasive relative to the worksurface, wherein the abrasive comprises a foamed abrasive body consisting of abrasive grains and a porosity of at least about 66 vol %.Type: GrantFiled: June 12, 2009Date of Patent: January 22, 2013Assignees: Saint-Gobain Abrasive, Inc., Saint-Gobain AbrasifsInventors: Muthu Jeevanantham, Xavier Orlhac
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Publication number: 20120297693Abstract: A bonded abrasive tool includes a bonded abrasive body having a bond matrix material comprising 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 comprises pores surrounding the chopped fiber bundles.Type: ApplicationFiled: August 8, 2012Publication date: November 29, 2012Applicants: SAINT-GOBAIN ABRASIFS, SAINT-GOBAIN ABRASIVES INC.Inventors: Konstantin S. Zuyev, Walter Strandgaard, Joel A. Fife, Muthu Jeevanantham