Patents by Inventor Christopher M. GRICE

Christopher M. GRICE 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).

  • Actuation system for varying blade pitch
    Patent number: 10436213
    Abstract: An actuation system is provided for varying the pitch of the blades of a variable pitch fan or propeller. The actuation system includes a first actuator and a second actuator. The actuation system further includes a first linkage which operably connects the first actuator to the blades such that operation of the first actuator varies the pitch of the blades via the first linkage. The actuation system further includes a second linkage which operably connects the second actuator to the first actuator such that operation of the second actuator varies the pitch of the blades by series connection of the second linkage to the first linkage.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 8, 2019
    Assignee: ROLLS-ROYCE PLC
    Inventor: Christopher M Grice
  • ACTUATION SYSTEM FOR VARYING BLADE PITCH
    Publication number: 20170218974
    Abstract: An actuation system is provided for varying the pitch of the blades of a variable pitch fan or propeller. The actuation system includes a first actuator and a second actuator. The actuation system further includes a first linkage which operably connects the first actuator to the blades such that operation of the first actuator varies the pitch of the blades via the first linkage. The actuation system further includes a second linkage which operably connects the second actuator to the first actuator such that operation of the second actuator varies the pitch of the blades by series connection of the second linkage to the first linkage.
    Type: Application
    Filed: January 18, 2017
    Publication date: August 3, 2017
    Applicant: ROLLS-ROYCE plc
    Inventor: Christopher M. GRICE