Patents by Inventor Ron K. Eyre

Ron K. Eyre 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).

  • Polycrystalline diamond carbide composites
    Patent number: 7647992
    Abstract: Polycrystalline diamond (PCD) carbide composites of this invention have a microstructure comprising a plurality of granules formed from PCD, polycrystalline cubic boron nitride, or mixture thereof, that are distributed within a substantially continuous second matrix region that substantially surrounds the granules and that is formed from a cermet material. In an example embodiment, the granules are polycrystalline diamond and the cermet material is cemented tungsten carbide. PCD carbide composites of this invention display improved properties of fracture toughness and chipping resistance, without substantially compromising wear resistance, when compared to conventional pure PCD materials.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: January 19, 2010
    Assignee: Smith International, Inc.
    Inventors: Zhigang Fang, Anthony Griffo, Brian A. White, Stewart Middlemiss, Ron K. Eyre
  • Polycrystalline diamond carbide composites
    Patent number: 7211218
    Abstract: Polycrystalline diamond (PCD) carbide composites of this invention have a microstructure comprising a plurality of granules formed from PCD, polycrystalline cubic boron nitride, or mixture thereof, that are distributed within a substantially continuous second matrix region that substantially surrounds the granules and that is formed from a cermet material. In an example embodiment, the granules are polycrystalline diamond and the cermet material is cemented tungsten carbide. PCD carbide composites of this invention display improved properties of fracture toughness and chipping resistance, without substantially compromising wear resistance, when compared to conventional pure PCD materials.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: May 1, 2007
    Assignee: Smith International, Inc.
    Inventors: Zhigang Fang, Anthony Griffo, Brian A. White, Stewart Middlemiss, Ron K. Eyre
  • Polycrystalline diamond carbide composites
    Patent number: 6454027
    Abstract: Polycrystalline diamond (PCD) carbide composites of this invention have a microstructure comprising a plurality of granules formed from PCD, polycrystalline cubic boron nitride, or mixture thereof, that are distributed within a substantially continuous second matrix region that substantially surrounds the granules and that is formed from a cermet material. In an example embodiment, the granules are polycrystalline diamond and the cermet material is cemented tungsten carbide. PCD carbide composites of this invention display improved properties of fracture toughness and chipping resistance, without substantially compromising wear resistance, when compared to conventional pure PCD materials.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: September 24, 2002
    Assignee: Smith International, Inc.
    Inventors: Zhigang Fang, Anthony Griffo, Brian A. White, Stewart Middlemiss, Ron K. Eyre