Patents by Inventor Alan Lees

Alan Lees 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).

  • Tie rod connection for mid-turbine frame
    Patent number: 10233781
    Abstract: A mid-turbine frame for use in a gas turbine engine comprises at least one vane extending between a vane inner platform and a vane outer platform, and an inner case radially inward of the inner platform. A plurality of tie rods extend from a platform radially inward of the inner case to a radially outer location which is secured by a mount member. The tie rods are secured in the inner case by a forward bolt, and at least one rear bolt, with the forward bolt extending along an axis which is non-parallel to a center axis of the inner case. A gas turbine engine and a method for assembling a mid-turbine frame are also disclosed.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: March 19, 2019
    Assignee: United Technologies Corporation
    Inventors: Tuan David Vo, Alan Lees
  • TIE ROD CONNECTION FOR MID-TURBINE FRAME
    Publication number: 20160333739
    Abstract: A mid-turbine frame for use in a gas turbine engine comprises at least one vane extending between a vane inner platform and a vane outer platform, and an inner case radially inward of the inner platform. A plurality of tie rods extend from a platform radially inward of the inner case to a radially outer location which is secured by a mount member. The tie rods are secured in the inner case by a forward bolt, and at least one rear bolt, with the forward bolt extending along an axis which is non-parallel to a center axis of the inner case. A gas turbine engine and a method for assembling a mid-turbine frame are also disclosed.
    Type: Application
    Filed: January 21, 2015
    Publication date: November 17, 2016
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Tuan David Vo, Alan Lees
  • BEARING SUPPORT STIFFNESS CONTROL
    Publication number: 20150247458
    Abstract: A bearing support bracket for supporting the bearing assembly includes individually adjustable features for defining and enabling a desired stiffness.
    Type: Application
    Filed: February 12, 2013
    Publication date: September 3, 2015
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Jonathan Ariel Scott, Alan Lees