Patents by Inventor Paul Martin Benson

Paul Martin Benson 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).

  • Externally glazed article
    Patent number: 7090918
    Abstract: The invention describes an article and method comprising a refractory article having an outer surface covered by an insulating coating over which a protective glaze is applied. The method includes applying a suspension of an insulating coating to a refractory piece, drying the suspension, applying a glaze slip over the coating, and drying the slip to form a protective glaze. In one embodiment, the article comprises a carbon-bonded alumina-graphite nozzle, an insulating coating containing hollow microspheres, and a protective glaze formed from a fusible frit. The invention is described as improving wetting to the refractory piece, reducing delamination of the glaze and insulating coating from the piece, and reducing oxidation of the piece.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: August 15, 2006
    Assignee: Vesuvius Crucible Company
    Inventors: Vincent Leroux, Martin Fuehrer, Paul Martin Benson
  • Anti-buildup liner
    Patent number: 6537486
    Abstract: A refractory shape is described for transferring molten metal in a continuous casting operation. The shape includes an inner surface made from an unfired composition comprising a calcium rich grain, a hydration-resistant grain, 6-28 wt. % carbon, and a binder. The unfired composition may also include an antioxidant and silica. The inner surface resists spalling and alumina deposition.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: March 25, 2003
    Assignee: Yesuvius Crucible Company
    Inventors: Paul Martin Benson, John Prentiss Sanders, III
  • Externally glazed article
    Publication number: 20020090514
    Abstract: The invention describes an article and method comprising a refractory article having an outer surface covered by an insulating coating over which a protective glaze is applied. The method includes applying a suspension of an insulating coating to a refractory piece, drying the suspension, applying a glaze slip over the coating, and drying the slip to form a protective glaze. In one embodiment, the article comprises a carbon-bonded alumina-graphite nozzle, an insulating coating containing hollow microspheres, and a protective glaze formed from a fusible frit. The invention is described as improving wetting to the refractory piece, reducing delamination of the glaze and insulating coating from the piece, and reducing oxidation of the piece.
    Type: Application
    Filed: January 11, 2001
    Publication date: July 11, 2002
    Inventors: Vincent Leroux, Martin Fuehrer, Paul Martin Benson