Patents by Inventor Douglas R. MILLWARD

Douglas R. MILLWARD 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).

  • Feeder duct assembly with flexible end fittings
    Patent number: 11203946
    Abstract: A feeder duct assembly for a gas turbine engine, which negates the need for a ball or axial joint in the duct for required for flexibility under thermal loading. The feeder duct assembly of the present innovation comprises an end fitting designed to meet flexibility requirements without compromising dynamic performance of the system with added weight from ball or axial joints in the ducts.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: December 21, 2021
    Assignee: Unison Industries, LLC
    Inventors: Dattu G V Jonnalagadda, Greedaran Kubendran Jankin, Bruce Patrick Graham, Rachamadugu Sivaprasad, Douglas R. Millward
  • Flexural spring-energized interface for bellowed ball-joint assemblies for controlled rotational constraint
    Patent number: 10738923
    Abstract: A turbine engine duct assembly including a joint assembly having an outer shroud, a bellows, a flared tube, a backing ring, and a kinematic ring. The joint assembly provides for dynamic movement of the duct assembly during operation of the engine. Such dynamic movement can be resultant of vibrational forces or thermal expansion of the engine. The joint assembly permits such dynamic movement without excessive system stiffness.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: August 11, 2020
    Assignee: Unison Industries LLC
    Inventors: Gordon Tajiri, Michael Thomas Kenworthy, Douglas R. Millward, Lonnie Ray Stewart, Jr.
  • FLEXURAL SPRING-ENERGIZED INTERFACE FOR BELLOWED BALL-JOINT ASSEMBLIES FOR CONTROLLED ROTATIONAL CONSTRAINT
    Publication number: 20180202591
    Abstract: A turbine engine duct assembly including a joint assembly having an outer shroud, a bellows, a flared tube, a backing ring, and a kinematic ring. The joint assembly provides for dynamic movement of the duct assembly during operation of the engine. Such dynamic movement can be resultant of vibrational forces or thermal expansion of the engine. The joint assembly permits such dynamic movement without excessive system stiffness.
    Type: Application
    Filed: May 4, 2016
    Publication date: July 19, 2018
    Inventors: Gordon TAJIRI, Michael Thomas KENWORTHY, Douglas R. MILLWARD, Lonnie Ray STEWART, JR.