Patents by Inventor Benoit Douville

Benoit Douville 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).

  • Turbine blade retaining apparatus
    Patent number: 7530791
    Abstract: An apparatus for retaining blade to a rotor disc of turbine engines includes a positioning member integrally for stopping the root of the blade when sliding into an attachment slot of the rotor disc, and a locking apparatus for retaining the root of the blade in the attachment slots.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: May 12, 2009
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Benoit Douville, Nicholas Grivas, Jean Chamoun
  • Turbine blade retaining apparatus
    Publication number: 20070148002
    Abstract: An apparatus for retaining blade to a rotor disc of turbine engines includes a positioning member integrally for stopping the root of the blade when sliding into an attachment slot of the rotor disc, and a locking apparatus for retaining the root of the blade in the attachment slots.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 28, 2007
    Inventors: Benoit Douville, Nicholas Grivas, Jean Chamoun