Patents by Inventor Michael W. Klett
Michael W. Klett 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: 9937604Abstract: An abrasive article has an abrasive portion with a bond and abrasive particles. A core is mounted to the abrasive portion. The core may include a plurality of segments that are interconnected to form the core. The abrasive article may include forming a plurality of core segments; assembling the core segments into a core; and then mounting the core to the abrasive portion to form the abrasive article. Forming an abrasive article may include mixing a phenolic resin, fillers and abrasive particles to form an abrasive matrix; injecting the abrasive matrix directly into a mold, such that the abrasive matrix is injection molded into a final wheel geometry; at least partially curing the abrasive matrix while it is inside the mold; and then removing the abrasive article from the mold.Type: GrantFiled: June 26, 2013Date of Patent: April 10, 2018Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Boris L. Serebrennikov, Michael W. Klett
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Patent number: 9855639Abstract: An abrasive article has an abrasive portion with an organic bond and abrasive particles. The abrasive article has a non-abrasive portion (NAP) mounted to the abrasive portion. The NAP includes molding compound (MC) having chopped strand fibers (CSF). The CSF can be coated with a thermoplastic coating having a loss on ignition (LOI) of at least about 2.4 wt %, and the NAP having no abrasive particles. The NAP can include an MC having no abrasive particles with a MOHS scale hardness of at least about 9. The NAP may include CSF coated with a primary coating and a secondary coating on the primary coating. The NAP may have an outer diameter that is at least half of but not greater than an outer diameter of the abrasive article.Type: GrantFiled: June 27, 2014Date of Patent: January 2, 2018Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Michael W. Klett, Frank J. Csillag, Tyler B. Cichowlas, Davinder S. Dhami, Lawrence J. Lavallee, Jr.
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Patent number: 9776303Abstract: An abrasive article has an abrasive portion and chopped strand fibers (CSF) with enhanced strength and/or fracture of toughness. The CSF may be coated with a thermoplastic having a loss on ignition of at least about 2 wt %. The CSF can have a primary coating and a secondary coating on the primary coating. At least some of the CSF can have a length of at least about 6.3 mm.Type: GrantFiled: June 27, 2014Date of Patent: October 3, 2017Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Michael W. Klett, Frank J. Csillag, Steven F. Parsons
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Patent number: 9586307Abstract: A composition that can be used for abrasive processing is disclosed. The composition includes an organic bond material, an abrasive material dispersed in the organic bond material, and a plurality of microfibers uniformly dispersed in the organic bond material. The microfibers are individual filaments having an average length of less than about 1000 ?m. Abrasive articles made with the composition exhibit improved strength and impact resistance relative to non-reinforced abrasive tools, and improved wheel wear rate and G-ratio relative to conventional reinforced tools. Active fillers that interact with microfibers may be used to further abrasive process benefits.Type: GrantFiled: August 6, 2014Date of Patent: March 7, 2017Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Michael W. Klett, Karen Conley, Steven F. Parsons, Han Zhang, Arup K. Khaund
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Publication number: 20160184972Abstract: An abrasive article has an abrasive portion with a bond and abrasive particles. A core is mounted to the abrasive portion. The core may include a plurality of segments that are interconnected to form the core. The abrasive article may include forming a plurality of core segments; assembling the core segments into a core; and then mounting the core to the abrasive portion to form the abrasive article. Forming an abrasive article may include mixing a phenolic resin, fillers and abrasive particles to form an abrasive matrix; injecting the abrasive matrix directly into a mold, such that the abrasive matrix is injection molded into a final wheel geometry; at least partially curing the abrasive matrix while it is inside the mold; and then removing the abrasive article from the mold.Type: ApplicationFiled: June 26, 2013Publication date: June 30, 2016Inventors: Boris L. SEREBRENNIKOV, Michael W. KLETT
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Publication number: 20160184971Abstract: Embodiments of the present disclosure are directed to methods of making high grade colored abrasive articles that are color stable at high temperatures, such as color stable at temperatures of at least about 185 degrees Celsius such that the bonded abrasive body can be cured at such elevated temperatures without substantially changing the color of the bonded abrasive body.Type: ApplicationFiled: December 31, 2015Publication date: June 30, 2016Inventors: MICHAEL W. KLETT, Davinder S. DHAMI
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Publication number: 20150000204Abstract: An abrasive article has an abrasive portion and chopped strand fibers (CSF) with enhanced strength and/or fracture of toughness. The CSF may be coated with a thermoplastic having a loss on ignition of at least about 2 wt %. The CSF can have a primary coating and a secondary coating on the primary coating. At least some of the CSF can have a length of at least about 6.3 mm.Type: ApplicationFiled: June 27, 2014Publication date: January 1, 2015Inventors: Michael W. Klett, Frank J. CSILLAG, Steven F. PARSONS
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Publication number: 20150000206Abstract: An abrasive article has an abrasive portion with an organic bond and abrasive particles. The abrasive article has a non-abrasive portion (NAP) mounted to the abrasive portion. The NAP includes molding compound (MC) having chopped strand fibers (CSF). The CSF can be coated with a thermoplastic coating having a loss on ignition (LOI) of at least about 2.4 wt %, and the NAP having no abrasive particles. The NAP can include an MC having no abrasive particles with a MOHS scale hardness of at least about 9. The NAP may include CSF coated with a primary coating and a secondary coating on the primary coating. The NAP may have an outer diameter that is at least half of but not greater than an outer diameter of the abrasive article.Type: ApplicationFiled: June 27, 2014Publication date: January 1, 2015Inventors: Michael W. Klett, Frank J. CSILLAG, Tyler B. CICHOWLAS, Davinder S. DHAMI, Lawrence J. LAVALLEE, JR.
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Publication number: 20140378036Abstract: An abrasive article may include an abrasive body having a grinding layer, where the grinding layer may include a bond and abrasive particles contained within the bond. The abrasive body also may include a volumetric ratio GLVb/GLVap of at least about 0.4, where GLVb is a volume percent of bond for a total volume of the grinding layer and GLVap is a volume percent of abrasive particles for a total volume of the grinding layer. The abrasive particles may include seeded sol-gel ceramic and may have an average particle size of at least about 600 microns. In addition, the abrasive particles may include a coupling agent that may include an organic material with a silane functional group. Prior to formation of the abrasive article, the abrasive particles may be coated by the coupling agent at a ratio ACOA/AAB of at least about 0.1, where CCOA is the amount of coupling agent in grams in a pre-formation mixture and AAB is the amount of abrasive particles in pounds (lbs) in the pre-formation mixture.Type: ApplicationFiled: June 25, 2014Publication date: December 25, 2014Inventors: Tyler B. Cichowlas, Michael W. Klett
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Publication number: 20140345202Abstract: A composition that can be used for abrasive processing is disclosed. The composition includes an organic bond material, an abrasive material dispersed in the organic bond material, and a plurality of microfibers uniformly dispersed in the organic bond material. The microfibers are individual filaments having an average length of less than about 1000 ?m. Abrasive articles made with the composition exhibit improved strength and impact resistance relative to non-reinforced abrasive tools, and improved wheel wear rate and G-ratio relative to conventional reinforced tools. Active fillers that interact with microfibers may be used to further abrasive process benefits.Type: ApplicationFiled: August 6, 2014Publication date: November 27, 2014Inventors: Michael W. Klett, Karen Conley, Steven F. Parsons, Han Zhang, Arup K. Khaund
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Patent number: 8808412Abstract: A composition that can be used for abrasive processing is disclosed. The composition includes an organic bond material, an abrasive material dispersed in the organic bond material, and a plurality of microfibers uniformly dispersed in the organic bond material. The microfibers are individual filaments having an average length of less than about 1000 ?m. Abrasive articles made with the composition exhibit improved strength and impact resistance relative to non-reinforced abrasive tools, and improved wheel wear rate and G-ratio relative to conventional reinforced tools. Active fillers that interact with microfibers may be used to further abrasive process benefits.Type: GrantFiled: August 24, 2007Date of Patent: August 19, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Michael W. Klett, Karen Conley, Steven F. Parsons, Han Zhang, Arup K. Khaund
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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: 8641481Abstract: Bonded abrasive tools, e.g., grinding wheels, can be reinforced using, for instance, one or more fiberglass web(s) having a surface of glass per unit of at least 0.2. Alternatively or in addition, the fiberglass web has a thickness of 2 mm or less. The web can be designed to provide improved adhesion between the fiberglass reinforcement and the mixture employed to form the bonded abrasive tool. In some examples, the middle reinforcement at the neutral zone of the wheel can be eliminated or minimized.Type: GrantFiled: December 23, 2009Date of Patent: February 4, 2014Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain AbrasifsInventors: Emmanuel C. Francois, Guohua Zhang, Michael W. Klett
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Publication number: 20120100784Abstract: An abrasive article includes an organic bond material, an abrasive material dispersed in the organic bond material, mineral wool microfibers uniformly dispersed in the organic bond material, the mineral wool microfibers being individual filaments, one or more reinforcement and/or chopped strand fibers dispersed in the organic bond material and one or more active fillers including, for example, a manganese compound. The abrasive article can be used in the abrasive processing of a workpiece.Type: ApplicationFiled: August 24, 2011Publication date: April 26, 2012Applicants: SAINT-GOBAIN ABRASIFS, SAINT-GOBAIN ABRASIVES, INC.Inventors: Michael W. Klett, Karen M. Conley, Steven F. Parsons, Han Zhang, Arup K. Khaund
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Publication number: 20120064295Abstract: Cured non-woven fibrous mats, UF-based resinous binders, asphalt coated roofing material and processes for making cured non-woven fibrous mats are provided. A cured non-woven fibrous mat comprising randomly disposed fibers bound together with a resinous adhesive is provided. The mat has a caliper of less than 30 mil, an LOI of less than 18 wt. %, a hot tensile strength of at least about 60 lbs for a sample width of 2.5 inches, and an areal weight of equal to or less than about 1.8 lbs/100 ft2.Type: ApplicationFiled: September 10, 2010Publication date: March 15, 2012Inventors: Michael W. Klett, Nancy E. Brown
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Publication number: 20110041413Abstract: An abrasive tool has a body including an abrasive portion having abrasive grains contained within a matrix material, and a first reinforcing member contained within the abrasive portion, wherein the body comprises 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: ApplicationFiled: August 3, 2010Publication date: February 24, 2011Applicants: 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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Publication number: 20110027564Abstract: 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: ApplicationFiled: August 3, 2010Publication date: February 3, 2011Applicants: 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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Publication number: 20100190424Abstract: Bonded abrasive tools, e.g., grinding wheels, can be reinforced using, for instance, one or more fibreglass web(s) having a surface of glass per unit of at least 0.2. Alternatively or in addition, the fibreglass web has a thickness of 2 mm or less. The web can be designed to provide improved adhesion between the fibreglass reinforcement and the mixture employed to form the bonded abrasive tool. In some examples, the middle reinforcement at the neutral zone of the wheel can be eliminated or minimized.Type: ApplicationFiled: December 23, 2009Publication date: July 29, 2010Applicants: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFSInventors: Emmanuel C. Francois, Guohua Zhang, Michael W. Klett
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Patent number: 5605757Abstract: An aqueous glass fiber sizing composition is provided which provides high strength and wet-out to composites prepared using glass fibers having the sizing composition of the present invention applied thereto. When used to reinforce a thermosetting polymeric material, the glass fibers sized with this composition provide a composite useful in making pultrusion profiles having high compressive, shear and flexural strengths. The aqueous composition includes a non-ionic thermosetting urethane-modified epoxy polymer; a water soluble, dispersible or emulsifiable epoxy film-forming polymer different from the urethane-modified epoxy polymer; an emulsifying agent; an organo functional silane coupling agent; and a fiber lubricant.Type: GrantFiled: December 20, 1994Date of Patent: February 25, 1997Assignee: PPG Industries, Inc.Inventor: Michael W. Klett