Patents by Inventor James C. Riggs

James C. Riggs 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).

  • Methods of off-line heat treatment of non-ferrous alloy feedstock
    Patent number: 11142815
    Abstract: The present invention, in some embodiments, is a method of forming an O temper or T temper product that includes obtaining a coil of a non-ferrous alloy strip as feedstock; uncoiling the coil of the feedstock; heating the feedstock to a temperature between a recrystallization temperature of the non-ferrous alloy and 10 degrees Fahrenheit below a solidus temperature of the non-ferrous alloy; and quenching the feedstock to form a heat-treated product having am O temper or T temper. The non-ferrous alloy strip used in the method excludes aluminum alloys having 0.4 weight percent silicon, less than 0.2 weight percent iron, 0.35 to 0.40 weight percent copper, 0.9 weight percent manganese, and 1 weight percent magnesium.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: October 12, 2021
    Assignee: ARCONIC TECHNOLOGIES LLC
    Inventors: Gavin F. Wyatt-Mair, David A. Tomes, William D. Bennon, Raymond J. Kilmer, James C. Riggs, Ali Unal, John M. Newman, Thomas N. Rouns
  • METHODS OF OFF-LINE HEAT TREATMENT OF NON-FERROUS ALLOY FEEDSTOCK
    Publication number: 20170009325
    Abstract: The present invention, in some embodiments, is a method of forming an O temper or T temper product that includes obtaining a coil of a non-ferrous alloy strip as feedstock; uncoiling the coil of the feedstock; heating the feedstock to a temperature between a recrystallization temperature of the non-ferrous alloy and 10 degrees Fahrenheit below a solidus temperature of the non-ferrous alloy; and quenching the feedstock to form a heat-treated product having am O temper or T temper. The non-ferrous alloy strip used in the method excludes aluminum alloys having 0.4 weight percent silicon, less than 0.2 weight percent iron, 0.35 to 0.40 weight percent copper, 0.9 weight percent manganese, and 1 weight percent magnesium.
    Type: Application
    Filed: July 7, 2015
    Publication date: January 12, 2017
    Inventors: Gavin F. Wyatt-Mair, David A. Tomes, William D. Bennon, Raymond J. Kilmer, James C. Riggs, Ali Unal, John M. Newman, Thomas N. Rouns