Patents by Inventor John T. Quasney

John T. Quasney 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).

  • Differentially coated galvanized steel strip
    Patent number: 4588658
    Abstract: A differentially coated, galvanized steel strip is produced by hot dip coating both sides of a steel strip and adjusting the weight of coating metal on opposite sides of the strip to produce a light coated side and a heavy coated side. The strip is then precooled to fully solidify the heavy coated side following which the galvanized strip is subjected to a treating step in which simultaneously the light coated side is heated and the heavy coated side is cooled. This fully transforms the light coated side to iron-zinc alloy throughout while only partially transforming an inner layer on the heavy coated side to iron-zinc alloy. The outer layer on the heavy coated side consists entirely of coating metal, and there are no intermittent bleed-throughs of iron-zinc alloy to the outer surface of the heavy coated side.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: May 13, 1986
    Assignee: Inland Steel Company
    Inventors: Ram S. Patil, Donald F. Johnson, John T. Quasney
  • Differentially coated galvanized steel strip and method and apparatus for producing same
    Patent number: 4528935
    Abstract: A differentially coated, galvanized steel strip is produced by hot dip coating both sides of a steel strip and adjusting the weight of coating metal on opposite sides of the strip to produce a light coated side and a heavy coated side. The strip is then precooled to fully solidify the heavy coated side following which the galvanized strip is subjected to a treating step in which simultaneously the light coated side is heated and the heavy coated side is cooled. This fully transforms the light coated side to iron-zinc alloy throughout while only partially transforming an inner layer on the heavy coated side to iron-zinc alloy. The outer layer on the heavy coated side consists entirely of coating metal, and there are no intermittent bleed-throughs of iron-zinc alloy to the outer surface of the heavy coated side.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: July 16, 1985
    Assignee: Inland Steel Company
    Inventors: Ram S. Patil, Donald F. Johnson, John T. Quasney
  • Differentially coated galvanized steel strip and method and apparatus for producing same
    Patent number: 4513033
    Abstract: A differentially coated, galvanized steel strip is produced by hot dip coating both sides of a steel strip and adjusting the weight of coating metal on opposite sides of the strip to produce a light coated side and a heavy coated side. The strip is then precooled to fully solidify the heavy coated side following which the galvanized strip is subjected to a treating step in which simultaneously the light coated side is heated and the heavy coated side is cooled. This fully transforms the light coated side to iron-zinc alloy throughout while only partially transforming an inner layer on the heavy coated side to iron-zinc alloy. The outer layer on the heavy coated side consists entirely of coating metal, and there are no intermittent bleed-throughs of iron-zinc alloy to the outer surface of the heavy coated side.
    Type: Grant
    Filed: January 20, 1984
    Date of Patent: April 23, 1985
    Assignee: Inland Steel Company
    Inventors: Ram S. Patil, Donald F. Johnson, John T. Quasney