Patents by Inventor John CC DAY

John CC DAY 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).

  • APPARATUS AND A METHOD OF DETERMINING THE PRESENCE OF AN ALUMINA LAYER ON A SURFACE OF A COMPONENT
    Publication number: 20110180727
    Abstract: Provided is a method for determining the presence of an alumina layer on a surface of a component. The method includes illuminating a surface of a component with radiation; detecting radiation emitted at a particular wavelength; analyzing the detected radiation; to determine the thickness of the alumina at at least one point on the surface of the component; and comparing the determined thickness of the alumina at the at least one point on the surface of the component with a predetermined thickness of alumina at that point to decide if the thickness of alumina at the at least one point on the surface of the component is satisfactory.
    Type: Application
    Filed: December 16, 2010
    Publication date: July 28, 2011
    Applicant: ROLLS-ROYCE PLC
    Inventors: James KELL, John CC DAY