Patents by Inventor Donald Dougan

Donald Dougan 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).

  • Flanged bushing for variable vane
    Patent number: 10030533
    Abstract: An example turbomachine bushing a bushing having a wear surface configured to interface directly with a variable vane assembly to limit radially inward movement of the variable vane assembly, wherein the variable vane assembly is moveable axially between a first position contacting the wear surface and a second position spaced from the wear surface.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: July 24, 2018
    Assignee: United Technologies Corporation
    Inventors: Donald Dougan, Bernard W. Pudvah
  • Gas turbine engine outer case with contoured bleed boss
    Patent number: 9528391
    Abstract: An axially extending outer case for a gas turbine engine comprises an arcuate case wall, an opening, a boss and contouring. The arcuate case wall has an inner surface and an outer surface. The opening extends through the arcuate case wall. The boss extends radially from the outer surface of arcuate case wall and surrounds the opening. The contouring surrounds the opening along the inner surface of the arcuate case wall within the boss.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: December 27, 2016
    Assignee: United Technologies Corporation
    Inventors: Donald Dougan, Jr., Daniel Carminati, Cheng-Zhang Wang
  • GAS TURBINE ENGINE OUTER CASE WITH CONTOURED BLEED BOSS
    Publication number: 20140023487
    Abstract: An axially extending outer case for a gas turbine engine comprises an arcuate case wall, an opening, a boss and contouring. The arcuate case wall has an inner surface and an outer surface. The opening extends through the arcuate case wall. The boss extends radially from the outer surface of arcuate case wall and surrounds the opening. The contouring surrounds the opening along the inner surface of the arcuate case wall within the boss.
    Type: Application
    Filed: July 17, 2012
    Publication date: January 23, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Donald Dougan, Daniel Carminati, Cheng-Zhang Wang