Patents Assigned to Duncan Galvanizing Corp.
  • Colorgalv galvanizing process
    Patent number: 5641543
    Abstract: Galvanized steel stock treated for the application of a finished coating or top coating. The galvanized steel is roughened with zinc pellets. The use of zinc pellets ensures that there are essentially no impurities in the treated zinc coating which would later form oxidation sites for corrosion.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: June 24, 1997
    Assignee: Duncan Galvanizing Corp.
    Inventor: Richard L. Brooks