Patents by Inventor Andrew Na

Andrew Na 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).

  • Methods and apparatus to vary reverse thrust of aircraft engines
    Patent number: 10018151
    Abstract: Methods and apparatus to vary reverse thrust of aircraft engines are disclosed. An example cascade apparatus disclosed herein includes a cascade frame having a first end, a second end, and a fixed structure extending between the first end and second end, where the cascade frame defines a slot. A cascade forms a reverse thrust flow path and at least a portion of the cascade is slidably coupled to the frame via the slot. The cascade slides relative the frame between a first position to produce a first reverse thrust and a second position to produce a second reverse thrust, where the first reverse thrust is different than the second reverse thrust.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: July 10, 2018
    Assignee: The Boeing Company
    Inventors: Omid B. Nakhjavani, Anthony K. Gilbert, Andrew Na, Mohammad A. Heidari
  • METHODS AND APPARATUS TO VARY REVERSE THRUST OF AIRCRAFT ENGINES
    Publication number: 20160201601
    Abstract: Methods and apparatus to vary reverse thrust of aircraft engines are disclosed. An example cascade apparatus disclosed herein includes a cascade frame having a first end, a second end, and a fixed structure extending between the first end and second end, where the cascade frame defines a slot. A cascade forms a reverse thrust flow path and at least a portion of the cascade is slidably coupled to the frame via the slot. The cascade slides relative the frame between a first position to produce a first reverse thrust and a second position to produce a second reverse thrust, where the first reverse thrust is different than the second reverse thrust.
    Type: Application
    Filed: January 14, 2015
    Publication date: July 14, 2016
    Inventors: Omid B. Nakhjavani, Anthony K. Gilbert, Andrew Na, Mohammad A. Heidari