Patents by Inventor Lyle Helvie

Lyle Helvie 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).

  • Apparatus and method for positioning a variable vane
    Patent number: 10508660
    Abstract: An apparatus and method of controlling the position of a variable vane in a compressor and a kit for adding such apparatus to the compressor are disclosed. The vane is coupled to a unison ring, a cam is secured to a torque tube, a cam follower is secured to the unison ring. The cam follower is secured such that a wall of the cam follower is in contact with the cam. Rotation of the torque tube causes movement of the cam, and movement of the cam moves the cam follower, thereby moving the unison ring and the variable vane coupled thereto.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: December 17, 2019
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies Inc.
    Inventors: Christopher Hall, Russell White, Jonathan Acker, Lyle Helvie
  • Apparatus and Method for Positioning a Variable Vane
    Publication number: 20190120250
    Abstract: An apparatus and method of controlling the position of a variable vane in a compressor and a kit for adding such apparatus to the compressor are disclosed. The vane is coupled to a unison ring, a cam is secured to a torque tube, a cam follower is secured to the unison ring. The cam follower is secured such that a wall of the cam follower is in contact with the cam. Rotation of the torque tube causes movement of the cam, and movement of the cam moves the cam follower, thereby moving the unison ring and the variable vane coupled thereto.
    Type: Application
    Filed: October 20, 2017
    Publication date: April 25, 2019
    Inventors: Christopher Hall, Russell White, Jonathan Acker, Lyle Helvie