Patents by Inventor Robin Hardstaff

Robin Hardstaff 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).

  • Diffuser case removal apparatus and method
    Patent number: 9133858
    Abstract: A method and apparatus is provided for removing a centrifugal compressor diffuser case from a turbofan gas turbine engine case which may be used while the engine is installed on an aircraft or when the engine has been removed from the aircraft. The tool includes movable gripping members at least one force member for exerting a pushing action on the engine structure on which the diffuser case is mounted the method includes gripping a peripheral portion of the diffuser case and applying an axial pushing force on the case relative to the engine case to thereby overcome an interference fit between the diffuser case and the engine case.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: September 15, 2015
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Enzo Macchia, Geoffrey Henriksen, Robin Hardstaff, Ian Chandler, Tim Bedard
  • DIFFUSER CASE REMOVAL APPARATUS AND METHOD
    Publication number: 20130276285
    Abstract: A method and apparatus is provided for removing a centrifugal compressor diffuser case from a turbofan gas turbine engine case which may be used while the engine is installed on an aircraft or when the engine has been removed from the aircraft. The tool includes movable gripping members at least one force member for exerting a pushing action on the engine structure on which the diffuser case is mounted the method includes gripping a peripheral portion of the diffuser case and applying an axial pushing force on the case relative to the engine case to thereby overcome an interference fit between the diffuser case and the engine case.
    Type: Application
    Filed: June 19, 2013
    Publication date: October 24, 2013
    Inventors: Enzo MACCHIA, Geoffrey HENRIKSEN, Robin HARDSTAFF, Ian CHANDLER, Tim BEDARD
  • Diffuser case removal apparatus and method
    Patent number: 8528176
    Abstract: A method and apparatus is provided for removing a centrifugal compressor diffuser case from a turbofan gas turbine engine case which may be used while the engine is installed on an aircraft or when the engine has been removed from the aircraft. The tool includes movable gripping members at least one force member for exerting a pushing action on the engine structure on which the diffuser case is mounted the method includes gripping a peripheral portion of the diffuser case and applying an axial pushing force on the case relative to the engine case to thereby overcome an interference fit between the diffuser case and the engine case.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: September 10, 2013
    Assignee: Pratt & Whitney Canada Corp.
    Inventors: Enzo Macchia, Robin Hardstaff, Ian Chandler, Tim Bedard, Geoffrey Henriksen
  • Diffuser Case Removal Apparatus and Method
    Publication number: 20100101065
    Abstract: A method and apparatus is provided for removing a centrifugal compressor diffuser case from a turbofan gas turbine engine case which may be used while the engine is installed on an aircraft or when the engine has been removed from the aircraft. The tool includes movable gripping members at least one force member for exerting a pushing action on the engine structure on which the diffuser case is mounted the method includes gripping a peripheral portion of the diffuser case and applying an axial pushing force on the case relative to the engine case to thereby overcome an interference fit between the diffuser case and the engine case.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 29, 2010
    Inventors: Enzo Macchia, Geoffrey Henriksen, Robin Hardstaff, Ian Chandler, Tim Bedard