Patents by Inventor Greg J. Courval

Greg J. Courval 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 of applying marking to metal sheet for scrap sorting purposes
    Patent number: 6412642
    Abstract: Application of surface marking to metal stock, such as aluminum sheet, prior to or during scrap-generating manufacturing operations, to provide a detectable mark on pieces of manufacturing scrap derived from the marked sheet and commingled with scrap of other aluminum alloy sheet, so that the scrap can be sorted and the marked alloy scrap pieces separated from scrap of other alloy sheet to which the marking was not applied. Different markings, providing detectably different marks, may be respectively applied to sheet of different compositions if scrap pieces of more than two different compositions or compositional families are to be sorted and separated from each other.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: July 2, 2002
    Assignee: Alcan International Limited
    Inventors: David F. Charles, Greg J. Courval, Michael P. Thomas, Michael J. Wheeler, Ian Wilson
  • Method of applying marking to metal sheet for scrap sorting purposes
    Publication number: 20010045378
    Abstract: Application of surface marking to metal stock, such as aluminum sheet, prior to or during scrap-generating manufacturing operations, to provide a detectable mark on pieces of manufacturing scrap derived from the marked sheet and commingled with scrap of other aluminum alloy sheet, so that the scrap can be sorted and the marked alloy scrap pieces separated from scrap of other alloy sheet to which the marking was not applied. Different markings, providing detectably different marks, may be respectively applied to sheet of different compositions if scrap pieces of more than two different compositions or compositional families are to be sorted and separated from each other.
    Type: Application
    Filed: March 27, 2001
    Publication date: November 29, 2001
    Inventors: David F. Charles, Greg J. Courval, Michael P. Thomas, Michael J. Wheeler, Ian Wilson