Patents by Inventor Ian J. Andrews

Ian J. Andrews 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 making and joining an aerofoil and root
    Patent number: 8661669
    Abstract: A ducted fan gas turbine engine aerofoil is made by electron beam welding together at least two metal sheets (10) and (12) and electron beam welding that sub assembly via an end to a root that has been manufactured in a separate operation, and then heating the whole to a temperature that will convert the electron beam welds to diffusion bonds.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: March 4, 2014
    Assignee: Rolls-Royce PLC
    Inventors: Ian J. Andrews, David Rugg, Michael J. Wallis
  • METHOD OF MAKING AND JOINING AN AEROFOIL AND ROOT
    Publication number: 20110088261
    Abstract: A ducted fan gas turbine engine aerofoil is made by electron beam welding together at least two metal sheets (10) and (12) and electron beam welding that sub assembly via an end to a root that has been manufactured in a separate operation, and then heating the whole to a temperature that will convert the electron beam welds to diffusion bonds.
    Type: Application
    Filed: December 14, 2010
    Publication date: April 21, 2011
    Applicant: ROLLS-ROYCE PLC
    Inventors: Ian J. Andrews, David Rugg, Michael J. Wallis