Patents by Inventor CHRIS CHATWIN

CHRIS CHATWIN 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).

  • Publication number: 20140161988
    Abstract: The laser nitriding method of making phosphor bronze with surface-embedded titanium carbide particles involves coating a cleaned phosphor bronze workpiece with a thin film formed of a carbonaceous layer mixed with nanosize particles of titanium carbide. The titanium carbide forms about 5 wt % of the thin film, and the phosphor bronze workpiece is composed of about 6.0 wt % tin, about 0.1 wt % phosphorous, and about 93.9 wt % copper. A laser beam is then scanned over the thin film formed on the phosphor bronze workpiece. Coaxially and simultaneously with the laser beam, a stream of nitrogen gas is sprayed on the thin film formed on the phosphor bronze workpiece in order to provide the workpiece with a nitride coating having nanoparticles of titanium carbide embedded therein.
    Type: Application
    Filed: January 7, 2014
    Publication date: June 12, 2014
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: BEKIR SAMI YILBAS, SOHAIL AKHTAR, CIHAN KARATAS, CHRIS CHATWIN