Patents by Inventor Paul Edwin Willis

Paul Edwin Willis 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).

  • Cutting tool and method of using same
    Patent number: 6868848
    Abstract: A cutting tool for cutting hard rock, the cutting tool including one or more cutting elements each including a pointed or chisel-shaped body including a diamond composite material including diamond crystals bonded together by a silicon carbide matrix, the each cutting element being mounted into a supporting matrix including a metal matrix composite material, such that the point or chisel edge of the each element protrudes from the matrix.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: March 22, 2005
    Assignee: The Commonwealth of Australia Commonwealth Scientific and Industrial Research Organization
    Inventors: James Norman Boland, Kit Bunker, Paul Edwin Willis
  • Cutting tool and method of using same
    Publication number: 20030150442
    Abstract: A cutting tool for cutting hard rock, said cutting tool including one or more cutting elements (10) each comprising a pointed or chisel-shaped body (12) including a diamond composite material including diamond crystals bonded together by a silicon carbide matrix, the each cutting element being mounted into a supporting matrix comprising a metal matrix composite material, such that the point or chisel edge of the each element protrudes from said matrix.
    Type: Application
    Filed: November 18, 2002
    Publication date: August 14, 2003
    Inventors: James Norman Boland, Kit Bunker, Paul Edwin Willis
  • Cell and method for forming a composite hard material and composite hard materials formed thereby
    Patent number: 6346689
    Abstract: A cell for forming a composite hard material and hard materials and methods of forming composite hard materials. A cell (10) in which the article is formed includes a talc outer sleeve (12), a glass sleeve (14) and a reflecting foil (22). A heater (18) is arranged inwardly of the foil (22) and a barrier layer (16) is arranged inwardly of the glass sleeve (14). A central column (20) is defined for receiving the charge of material (50) from which the hard composite material is to be formed.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: February 12, 2002
    Assignee: The Australian National University
    Inventors: Paul Edwin Willis, Alan Major, Donald Lindsay Clark