Patents by Inventor Christopher F. Duffy

Christopher F. Duffy 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).

  • VANE ARM TORQUE TRANSFER PLATE
    Publication number: 20230304417
    Abstract: A vane arm connection system for a gas turbine engine includes a vane stem having a head with flat contact surfaces; a vane arm having a claw, the claw having opposed arms having inwardly facing surfaces engaging the flat contact surfaces of the head; and a torque transfer member having a body defining an opening for engaging the flat contact surfaces of the head of the vane stem, and at least one arm extending from the body to contact the claw, whereby load from torque is transferred away from the inwardly facing surfaces.
    Type: Application
    Filed: May 10, 2023
    Publication date: September 28, 2023
    Applicant: Raytheon Technologies Corporation
    Inventor: Christopher F. Duffy
  • Vane arm torque transfer plate
    Patent number: 11680494
    Abstract: A vane arm connection system for a gas turbine engine includes a vane stem having a head with flat contact surfaces; a vane arm having a claw, the claw having opposed arms having inwardly facing surfaces engaging the flat contact surfaces of the head; and a torque transfer member having a body defining an opening for engaging the flat contact surfaces of the head of the vane stem, and at least one arm extending from the body to contact the claw, whereby load from torque is transferred away from the inwardly facing surfaces.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: June 20, 2023
    Assignee: Raytheon Technologies Corporation
    Inventor: Christopher F. Duffy
  • VANE ARM TORQUE TRANSFER PLATE
    Publication number: 20210254494
    Abstract: A vane arm connection system for a gas turbine engine includes a vane stem having a head with flat contact surfaces; a vane arm having a claw, the claw having opposed arms having inwardly facing surfaces engaging the flat contact surfaces of the head; and a torque transfer member having a body defining an opening for engaging the flat contact surfaces of the head of the vane stem, and at least one arm extending from the body to contact the claw, whereby load from torque is transferred away from the inwardly facing surfaces.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 19, 2021
    Applicant: United Technologies Corporation
    Inventor: Christopher F. Duffy