Patents by Inventor James B. C. Wu

James B. C. Wu 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).

  • Patent number: 6733603
    Abstract: Co-based cutting tool insert alloys having a wrought microstructure and 3-15% Mo, 25-35% Cr, 0.5-2.5% C. The presence of W is avoided, and held below 1%. The alloys have enhanced resistance to abrasive and corrosive attack, and are especially suited for manufacturing router bits, router cutters, shaper cutters, molder cutters, etc. for cutting wood in secondary cutting operations such as furniture making or other cutting inserts such as inserts for cutting optical fibers.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: May 11, 2004
    Assignee: Deloro Stellite Company, Inc.
    Inventors: James B. C. Wu, Bradley McKee, Ian Purvis
  • Publication number: 20040057863
    Abstract: A Co-based alloy comprising 13-16 wt % Cr, 20-30 wt % Mo, 2.2-3.2 wt % Si, and balance Co, with a Cr:Si ratio of between about 4.5 and about 7.5, a Mo:Si ratio of between about 9 and about 15, wear resistance, and corrosion resistance in both oxidizing and reducing acids.
    Type: Application
    Filed: June 12, 2003
    Publication date: March 25, 2004
    Inventors: James B. C. Wu, Matthew X. Yao
  • Publication number: 20040011435
    Abstract: A Co-based alloy comprising 13-16 wt % Cr, 20-30 wt % Mo, 2.2-3.2 wt % Si, and balance Co, with a Cr:Si ratio of between about 4.5 and about 7.5, a Mo:Si ratio of between about 9 and about 15, wear resistance, and corrosion resistance in both oxidizing and reducing acids.
    Type: Application
    Filed: February 3, 2003
    Publication date: January 22, 2004
    Inventors: James B. C. Wu, Matthew X. Yao
  • Patent number: 6479014
    Abstract: A Co-based saw tip for attachment to saw blades for cutting wood, the saw tip formed from an alloy containing Mo in an amount from about 4 to about 20% by weight, Cr, C, and the balance Co. Certain embodiments specifically avoid all W. The tip optionally further contains elements selected from the group consisting of Mn, Si, Ni, B and Fe.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: November 12, 2002
    Assignee: Deloro Stellite Company, Inc.
    Inventors: James B. C. Wu, Damadoran Raghu, Bradley McKee
  • Publication number: 20020136917
    Abstract: A metallic tube for transporting corrosive, abrasive, and erosive industrial flow streams. The tube has an outer tube material consisting of consolidated metallic powder bonded to an inner tube material consisting of a corrosion- or wear-resistant, weld- or spray-deposited material. The tube has a bend in it of at least about 45°, such as a U-bend, which would normally inhibit the weld- or spray-deposition of the corrosion- or wear-resistant inner tube material.
    Type: Application
    Filed: March 26, 2001
    Publication date: September 26, 2002
    Inventors: Damadoran Raghu, James B. C. Wu, John C. Hebeisen, Stephen J. Mashl
  • Patent number: 5964915
    Abstract: A mold having a pair of mold halves defining a mold cavity for forming a glass container. There is an inner shell of the mold and an outer shell and a gap therebetween through which cooling gas flows. Heat transfer elements on the inner shell extend laterally outwardly from the inner shell into the gap for contact by cooling gas flowing through the gap thereby to cool the inner shell. The inner shell is formed from a hard material having a working temperature substantially greater than the melting temperature of glass, a heat conductivity of less than about 15 W/m-deg K, and a capability of generating at temperatures in excess of about 500.degree. C. a protective oxide film strongly adhered to the inner shell surface.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: October 12, 1999
    Assignee: Deloro Stellite Company Inc.
    Inventors: Peter Neuman, James B. C. Wu, Gunther Clos
  • Patent number: 5851158
    Abstract: A method for coating sports implements to improve the hardness and wear characteristics of the sports implement is disclosed. The method includes the steps of generating a high velocity gas stream directed at a sports implement and feeding a powder within the gas stream such that the powder contacts the sports implement to form a coating with high bond strength. Sports implements coated in accordance with the present method are also disclosed.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: December 22, 1998
    Inventors: Thomas L. Winrow, Martin E. Lohrman, James B.C. Wu
  • Patent number: 5514328
    Abstract: A cavitation erosion resistant alloy comprising about 10 to 40 percent by weight of one or more carbide formers including some chromium, 5 to 15 percent by weight cobalt, 5 to 15 percent by weight manganese, 3.5 to 7.0 percent by weight silicon, 1.8 to 4.8 percent by weight nickel, 0.15 to 3.5 percent by weight carbon plus boron, up to 0.3 percent weight nitrogen and the balance being iron plus impurities.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: May 7, 1996
    Assignee: Stoody Deloro Stellite, Inc.
    Inventors: Ravi Menon, William C. Mosier, James B. C. Wu