Patents by Inventor Derek George Hand

Derek George Hand 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).

  • Processing tip treatment bars in a gas turbine engine
    Patent number: 6514039
    Abstract: Tip treatment bars 16 of a rotor casing 2 for a gas turbine engine are subjected to a process which induces compressive stress within the bars 16. The process may be a laser shock peening process applied to opposite sides 20 of each bar 16. The processing of the tip treatment bars 16 renders them less susceptible to fatigue failure.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: February 4, 2003
    Assignee: Rolls-Royce PLC
    Inventor: Derek George Hand