Patents by Inventor Carnelle E. Williams

Carnelle E. Williams 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).

  • Turbocharger housing with a conversion coating and methods of making the conversion coating
    Patent number: 8556582
    Abstract: A method for increasing wear resistance of a turbocharger includes exposing at least a bearing surface of a center housing of the turbocharger to a gas nitrocarburizing process or a plasma nitrocarburizing process, thereby forming a conversion coating impregnated onto the at least the bearing surface.
    Type: Grant
    Filed: May 26, 2012
    Date of Patent: October 15, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Thomas A. Perry, Carnelle E. Williams, Julian Velosa, Anil K. Sachdev
  • TURBOCHARGER HOUSING WITH A CONVERSION COATING AND METHODS OF MAKING THE CONVERSION COATING
    Publication number: 20120227867
    Abstract: A method for increasing wear resistance of a turbocharger includes exposing at least a bearing surface of a center housing of the turbocharger to a gas nitrocarburizing process or a plasma nitrocarburizing process, thereby forming a conversion coating impregnated onto the at least the bearing surface.
    Type: Application
    Filed: May 26, 2012
    Publication date: September 13, 2012
    Inventors: Thomas A. Perry, Carnelle E. Williams, Julian Velosa, Anil K. Sachdev