Patents by Inventor Victor M. Duarte

Victor M. Duarte 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: 6863748
    Abstract: A process and an alloy for galvanizing non-reactive steel and mixed or moderately reactive steel for providing a decorative spangle to the galvanized coating. The alloy contains 0.1 to less than 0.8 wt % tin, 0.05 to 0.2 wt % bismuth, 0.001 to 0.008 wt % aluminum, and optionally 0 to 0.1 wt % nickel, the balance zinc of commercial purity.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: March 8, 2005
    Assignee: Teck Cominco Metals Ltd.
    Inventors: John Zervoudis, Victor M. Duarte, Graham W. Poag
  • Publication number: 20030124380
    Abstract: A process and an alloy for galvanizing non-reactive steel and mixed or moderately reactive steel for providing a decorative spangle to the galvanized coating. The alloy contains 0.1 to less than 0.8 wt % tin, 0.05 to 0.2 wt % bismuth, 0.001 to 0.008 wt % aluminum, and optionally 0 to 0.1 wt % nickel, the balance zinc of commercial purity.
    Type: Application
    Filed: December 26, 2002
    Publication date: July 3, 2003
    Inventors: John Zervoudis, Victor M. Duarte, Graham W. Poag
  • Patent number: 6569268
    Abstract: A process and an alloy for galvanizing non-reactive steel and mixed or moderately reactive steel for providing a decorative spangle to the galvanized coating. The alloy contains 0.1 to less than 0.8 wt % tin, 0.05 to 0.2 wt % bismuth, 0.001 to 0.008 wt % aluminum, and optionally 0 to 0.1 wt % nickel, the balance zinc of commercial purity.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: May 27, 2003
    Assignee: Teck Cominco Metals Ltd.
    Inventors: John Zervoudis, Victor M. Duarte, Graham W. Poag
  • Patent number: 6280795
    Abstract: An alloy for galvanizing steel comprises, by weight, aluminum in the amount of at least 0.001% to 0.007%, preferably 0.002 to 0.004%, tin in the amount of at least 0.5% to a maximum of 2%, preferably at least 0.8%, and one of an element selected from the group consisting of vanadium in the amount of at least 0.02%, preferably 0.05% to 0.12%, titanium in the amount of at least 0.03%, preferably 0.06% to 0.10%, and both vanadium and titanium together in the amount of at least 0.02% vanadium and at least 0.01% titanium for a total of at least 0.03%, preferably 0.05% to 0.15%, the balance zinc containing up to 1.3 wt. % lead. In another embodiment, the alloy comprises, by weight, aluminum in the amount of at least 0.001%, tin in the amount of 0.5% to 2%, and vanadium and nickel together in the amount of at least 0.02% vanadium and at least 0.02% nickel to a maximum of 0.15% vanadium and nickel collectively. Titanium may be added in an amount, by weight, of at least 0.01% titanium to a collective maximum of 0.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: August 28, 2001
    Assignee: Cominco, Ltd.
    Inventors: John Zervoudis, Gary R. Adams, Victor M. Duarte, Michael Gilles, Richard Sokolowski