Patents by Inventor Roger J. Parkes

Roger J. Parkes 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).

  • Cooled blade for a gas turbine engine
    Patent number: 4162136
    Abstract: A cooled blade for a gas turbine engine comprises an aerofoil portion having a longitudinally extending hollow. An air entry tube is mounted within the hollow and is pressed against a locating surface within the hollow by a resilient member such as a spring tube.
    Type: Grant
    Filed: April 1, 1975
    Date of Patent: July 24, 1979
    Assignee: Rolls-Royce Limited
    Inventor: Roger J. Parkes
  • Blade or vane for a gas turbine engine
    Patent number: 4127358
    Abstract: A blade or vane for a gas turbine engine has a cooled shroud made of two pieces, one of which is integral with the aerofoil and has formed on its surface distant from the aerofoil a plurality of convoluted grooves. The second piece overlays the first and closes the open faces of the grooves to form convoluted passages which are fed with cooling fluid from duct means.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: November 28, 1978
    Assignee: Rolls-Royce Limited
    Inventor: Roger J. Parkes