Patents by Inventor Steven F. Parsons

Steven F. Parsons 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).

  • Abrasive article reinforced by discontinuous fibers
    Patent number: 9776303
    Abstract: 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: Grant
    Filed: June 27, 2014
    Date of Patent: October 3, 2017
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Michael W. Klett, Frank J. Csillag, Steven F. Parsons
  • Microfiber reinforcement for abrasive tools
    Patent number: 9586307
    Abstract: 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: Grant
    Filed: August 6, 2014
    Date of Patent: March 7, 2017
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Michael W. Klett, Karen Conley, Steven F. Parsons, Han Zhang, Arup K. Khaund
  • ABRASIVE ARTICLE REINFORCED BY DISCONTINUOUS FIBERS
    Publication number: 20150000204
    Abstract: 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: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: Michael W. Klett, Frank J. CSILLAG, Steven F. PARSONS
  • Microfiber Reinforcement for Abrasive Tools
    Publication number: 20140345202
    Abstract: 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: Application
    Filed: August 6, 2014
    Publication date: November 27, 2014
    Inventors: Michael W. Klett, Karen Conley, Steven F. Parsons, Han Zhang, Arup K. Khaund
  • Microfiber reinforcement for abrasive tools
    Patent number: 8808412
    Abstract: 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: Grant
    Filed: August 24, 2007
    Date of Patent: August 19, 2014
    Assignees: Saint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
    Inventors: Michael W. Klett, Karen Conley, Steven F. Parsons, Han Zhang, Arup K. Khaund
  • Microfiber Reinforcement for Abrasive Tools
    Publication number: 20120100784
    Abstract: 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: Application
    Filed: August 24, 2011
    Publication date: April 26, 2012
    Applicants: SAINT-GOBAIN ABRASIFS, SAINT-GOBAIN ABRASIVES, INC.
    Inventors: Michael W. Klett, Karen M. Conley, Steven F. Parsons, Han Zhang, Arup K. Khaund