Patents by Inventor John H. M. Atkinson

John H. M. Atkinson 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).

  • Rotors for gas turbine engines
    Patent number: 4655687
    Abstract: A rotor assembly for a gas turbine engine has platformless blades and the inner wall of the compressed air annulus is made up of separate annulus members bridging the spaces between pairs of adjacent blades. The invention provides salient feet on the annulus members which are fitted through the narrow necks of re-entrant grooves in a direction radially inwardly of the rotor disc. Wedges are slid between feet and the walls of the grooves to prevent removal of the feet and therefore the annulus members in a reciprocal direction.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: April 7, 1987
    Assignee: Rolls-Royce
    Inventor: John H. M. Atkinson