Patents by Inventor Annie Gao

Annie Gao 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).

  • High speed rotor blade design
    Patent number: 12116119
    Abstract: A rotary wing aircraft includes a single main rotor hub configured to receive a rotor blade. The rotor blade includes a blade root, a blade tip, and a blade body. The blade body includes a leading edge and a trailing edge and defines a feathering axis. The leading edge and the trailing edge each include a first portion and a second portion that extend toward a first direction and a second portion, respectively. At a given radial location along the feathering axis, a local twist angle changes from a positive value to a negative value, a chord length decreases in value, a distance between the trailing edge and the feathering axis decreases in value, and the first portion of the leading edge extends toward the first direction. The rotor blade assembly also includes a trailing edge assembly having a trailing edge flap configured to be selectively deployed by an actuator.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: October 15, 2024
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Byung-Young Min, Vera Klimchenko, Annie Gao, Alexander F. Dunn, Claude George Matalanis, Brian Ernest Wake
  • HIGH SPEED ROTOR BLADE DESIGN
    Publication number: 20230322373
    Abstract: A rotary wing aircraft includes a single main rotor hub configured to receive a rotor blade. The rotor blade includes a blade root, a blade tip, and a blade body. The blade body includes a leading edge and a trailing edge and defines a feathering axis. The leading edge and the trailing edge each include a first portion and a second portion that extend toward a first direction and a second portion, respectively. At a given radial location along the feathering axis, a local twist angle changes from a positive value to a negative value, a chord length decreases in value, a distance between the trailing edge and the feathering axis decreases in value, and the first portion of the leading edge extends toward the first direction. The rotor blade assembly also includes a trailing edge assembly having a trailing edge flap configured to be selectively deployed by an actuator.
    Type: Application
    Filed: March 28, 2022
    Publication date: October 12, 2023
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Byung-Young Min, Vera Klimchenko, Annie Gao, Alexander F. Dunn, Claude George Matalanis, Brian Ernest Wake