Patents by Inventor Dennis J. Stapleton

Dennis J. Stapleton 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 rotary tool with abrasive agglomerates
    Patent number: 11040429
    Abstract: An abrasive rotary tool includes a tool shank defining an axis of rotation for the rotary tool, and an abrasive external working surface. The abrasive external working surface includes a resin, and a plurality of porous ceramic abrasive composites dispersed in the resin, the porous ceramic abrasive composites including individual abrasive particles dispersed in a porous ceramic matrix. At least a portion of the porous ceramic matrix comprises glassy ceramic material. A ratio of the average porous ceramic abrasive composite size to the average individual abrasive particle size is no greater than 15 to 1.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: June 22, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bruce A. Sventek, David G. Baird, Adam J. Painter, Tammy J. Engfer, Dennis J. Stapleton, John J. Gagliardi
  • Flexible abrasive rotary tool
    Patent number: 10906156
    Abstract: An abrasive rotary tool includes a tool shank a flexible planar section positioned opposite the tool shank. The flexible planar section forms a first abrasive external surface on a first side of the flexible planar section and a second abrasive external surface on a second side of the flexible planar section. The flexible planar section facilitates abrading, corners of a workpiece across multiple angles relative to the axis of rotation for the rotary tool through bending of the flexible planar section when the abrasive external surfaces are applied to a corner of the workpiece.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: February 2, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bruce A. Sventek, David G. Baird, Adam J. Painter, Tammy J. Engfer, Dennis J. Stapleton
  • ABRASIVE ROTARY TOOL WITH ABRASIVE AGGLOMERATES
    Publication number: 20180264626
    Abstract: An abrasive rotary tool includes a tool shank defining an axis of rotation for the rotary tool, and an abrasive external working surface. The abrasive external working surface includes a resin, and a plurality of porous ceramic abrasive composites dispersed in the resin, the porous ceramic abrasive composites including individual abrasive particles dispersed in a porous ceramic matrix. At least a portion of the porous ceramic matrix comprises glassy ceramic material. A ratio of the average porous ceramic abrasive composite size to the average individual abrasive particle size is no greater than 15 to 1.
    Type: Application
    Filed: September 6, 2016
    Publication date: September 20, 2018
    Inventors: Bruce A. Sventek, David G. Baird, Adam J. Painter, Tammy J. Engfer, Dennis J. Stapleton, John J. Gagliardi
  • FLEXIBLE ABRASIVE ROTARY TOOL
    Publication number: 20180250793
    Abstract: An abrasive rotary tool includes a tool shank a flexible planar section positioned opposite the tool shank. The flexible planar section forms a first abrasive external surface on a first side of the flexible planar section and a second abrasive external surface on a second side of the flexible planar section. The flexible planar section facilitates abrading, corners of a workpiece across multiple angles relative to the axis of rotation for the rotary tool through bending of the flexible planar section when the abrasive external surfaces are applied to a corner of the workpiece.
    Type: Application
    Filed: September 6, 2016
    Publication date: September 6, 2018
    Inventors: Bruce A. Sventek, David G. Baird, Adam J. Painter, Tammy J. Engfer, Dennis J. Stapleton