Patents by Inventor Danni BAI

Danni BAI 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).

  • Staged shearing and forming methods for t-bar cylindrical members
    Patent number: 12466138
    Abstract: The present disclosure provides a staged shearing and forming method for a T-bar cylindrical member, comprising: controlling a shear working surface of a shear spinning wheel in contact with a surface of a cylindrical member blank; controlling a circumferential rotation of the cylindrical member blank; controlling a working surface of a flow spinning wheel to be in perpendicular contact with a surface of the unsaturated I-bar cylindrical member and controlling the cylindrical member blank to be maintained in a circumferential rotational state; controlling the flow spinning wheel to thin one side of the unsaturated I-bar cylindrical member; controlling a fractal working surface of a fractal spinning wheel in contact with a top of the saturated I-bar structure; controlling a working surface of a flat spinning wheel to be in perpendicular contact with a surface of the Y-bar cylindrical member.
    Type: Grant
    Filed: May 14, 2024
    Date of Patent: November 11, 2025
    Assignee: NORTHWESTERN POLYTECHNICAL UNIVERSITY
    Inventors: Mei Zhan, Danni Bai, Xiaoguang Fan, Pengfei Gao, Fei Ma
  • STAGED SHEARING AND FORMING METHODS FOR T-BAR CYLINDRICAL MEMBERS
    Publication number: 20240308153
    Abstract: The present disclosure provides a staged shearing and forming method for a T-bar cylindrical member, comprising: controlling a shear working surface of a shear spinning wheel in contact with a surface of a cylindrical member blank; controlling a circumferential rotation of the cylindrical member blank; controlling a working surface of a flow spinning wheel to be in perpendicular contact with a surface of the unsaturated I-bar cylindrical member and controlling the cylindrical member blank to be maintained in a circumferential rotational state; controlling the flow spinning wheel to thin one side of the unsaturated I-bar cylindrical member; controlling a fractal working surface of a fractal spinning wheel in contact with a top of the saturated I-bar structure; controlling a working surface of a flat spinning wheel to be in perpendicular contact with a surface of the Y-bar cylindrical member.
    Type: Application
    Filed: May 14, 2024
    Publication date: September 19, 2024
    Applicant: NORTHWESTERN POLYTECHNICAL UNIVERSITY
    Inventors: Mei ZHAN, Danni BAI, Xiaoguang FAN, Pengfei GAO, Fei MA