Patents by Inventor Andrew Thomas Napper

Andrew Thomas Napper 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).

  • First stage turbine airfoil
    Patent number: 7648340
    Abstract: The present invention provides an airfoil for a first stage turbine blade having an external surface with first and second sides. The external surface extends spanwise between a hub and a tip and streamwise between a leading edge and a trailing edge of the airfoil. The external surface includes a contour substantially defined by Table 1 as listed in the specification.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: January 19, 2010
    Assignee: Rolls-Royce Power Engineering PLC
    Inventors: Keith Sadler, Andrew Thomas Napper
  • Airfoil for a first stage nozzle guide vane
    Patent number: 7618240
    Abstract: The present invention provides an airfoil for a first stage nozzle guide vane having an external surface with first and second sides. The external surface extends spanwise between a hub and a tip and streamwise between a leading edge and a trailing edge of the airfoil. The external surface includes a contour substantially defined by Table 1 as listed in the specification.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: November 17, 2009
    Assignee: Rolls-Royce Power Engineering plc
    Inventors: Ivor Saltman, Sean Alan Walters, Andrew Thomas Napper
  • Airfoil for a first stage nozzle guide vane
    Publication number: 20070154318
    Abstract: The present invention provides an airfoil for a first stage nozzle guide vane having an external surface with first and second sides. The external surface extends spanwise between a hub and a tip and streamwise between a leading edge and a trailing edge of the airfoil. The external surface includes a contour substantially defined by Table 1 as listed in the specification.
    Type: Application
    Filed: December 22, 2006
    Publication date: July 5, 2007
    Inventors: Ivor Saltman, Sean Alan Walters, Andrew Thomas Napper