Patents by Inventor Donald L. Dustin

Donald L. Dustin 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).

  • Method for forming minimized spangle coated strip
    Patent number: 4443501
    Abstract: Molten zinc coated strip is contacted with an internally cooled roll upon which is provided a thin film of liquid that serves to maintain effective heat transfer contact between the surface of the roll and the surface of the strip across the entire face of the strip.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: April 17, 1984
    Assignee: Bethlehem Steel Corp.
    Inventors: George M. Mino, Donald L. Dustin, John H. Williams
  • Partially alloyed galvanize product
    Patent number: 4125679
    Abstract: A partially alloyed galvanized ferrous strand and a method for its production. The method is characterized by the steps of immersing a clean and oxide-free ferrous strand in a molten zinc galvanizing bath to produce on the strand a coating weight of between 0.2 and 0.5 oz. per square foot. After immersion, the zinc-coated ferrous strand is heat treated and cooled to produce a galvanized coating on said ferrous strand, which coating has a duplex structure characterized by an iron-zinc intermetallic layer consisting essentially of the zeta phase, an overlay of free zinc, and an average iron content between about 2 and less than 4% by weight.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: November 14, 1978
    Assignee: Bethlehem Steel Corporation
    Inventors: George M. Mino, Donald L. Dustin
  • Partially alloyed galvanize product and method
    Patent number: 4059711
    Abstract: A partially alloyed galvanized ferrous strand and a method for its production. The method is characterized by the steps of immersing a clean and oxide-free ferrous strand in a molten zinc galvanizing bath to produce on the strand a coating weight of between 0.2 and 0.5 oz. per square foot. After immersion, the zinc-coated ferrous strand is heat treated and cooled to produce a galvanized coating on said ferrous strand, which coating has a duplex structure characterized by an iron-zinc intermetallic layer consisting essentially of the zeta phase, an overlay of free zinc, and an average iron content between about 2 and less than 4% by weight.
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: November 22, 1977
    Assignee: Bethlehem Steel Corporation
    Inventors: George M. Mino, Donald L. Dustin