Patents by Inventor Martin Rawson

Martin Rawson 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 replacing damaged aerofoil
    Patent number: 8006380
    Abstract: A method of replacing a damaged blade (12A) of an integrally bladed rotor assembly (10) including a disc (14) and a plurality of blades (12) extending outwardly from the disc (14) includes the steps of; removing the damaged blade (12A) to leave a blade stub (16) projecting from the disc (14); depositing a collar (22) of metal around the blade stub (16) at a position physically separated from the disc (14); attaching a replacement blade (12B) to the stub (16) by linear friction welding; and removing the collar (22). A body (20) of a material may be deposited between the disc (14) and the collar (22) to protect the disc (14) from damage.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: August 30, 2011
    Assignee: Rolls-Royce plc
    Inventors: Martin Rawson, Andrew T Webster
  • Method of replacing damaged aerofoil
    Publication number: 20050274010
    Abstract: A method of replacing a damaged blade (12A) of an integrally bladed rotor assembly (10) including a disc (14) and a plurality of blades (12) extending outwardly from the disc (14) includes the steps of; removing the damaged blade (12A) to leave a blade stub (16) projecting from the disc (14); depositing a collar (22) of metal around the blade stub (16) at a position physically separated from the disc (14); attaching a replacement blade (12B) to the stub (16) by linear friction welding; and removing the collar (22). A body (20) of a material may be deposited between the disc (14) and the collar (22) to protect the disc (14) from damage.
    Type: Application
    Filed: May 12, 2005
    Publication date: December 15, 2005
    Inventors: Martin Rawson, Andrew Webster