Patents by Inventor Lizheng Tang

Lizheng Tang 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).

  • Two-degree-of-freedom rotation control device and application system
    Patent number: 10337663
    Abstract: A two-degree-of-freedom rotation control device includes a rotary body having a friction spherical surface, wherein a load mounting platform is provided on a top of the rotating body or inside the rotating body; a fixing and supporting structure configured to hold the rotating body, to allow the rotating body to have only a rotational degree of freedom; and a driving motor, wherein, a driving end of the driving motor is in direct contact with the friction spherical surface of the rotating body, to form a friction transmission pair tangent to the friction spherical surface. An application system has the two-degree-of-freedom rotation control device and a working unit on the two-degree-of-freedom rotation control device.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: July 2, 2019
    Assignee: BEIJING UNISTRONG SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Lizheng Tang, Di Zhang
  • TWO-DEGREE-OF-FREEDOM ROTATION CONTROL DEVICE AND APPLICATION SYSTEM THEREWITH
    Publication number: 20180128416
    Abstract: A two-degree-of-freedom rotation control device includes a rotary body having a friction spherical surface, wherein a load mounting platform is provided on a top of the rotating body or inside the rotating body; a fixing and supporting structure configured to hold the rotating body, to allow the rotating body to have only a rotational degree of freedom; and a driving motor, wherein, a driving end of the driving motor is in direct contact with the friction spherical surface of the rotating body, to form a friction transmission pair tangent to the friction spherical surface. An application system has the two-degree-of-freedom rotation control device and a working unit on the two-degree-of-freedom rotation control device.
    Type: Application
    Filed: May 27, 2015
    Publication date: May 10, 2018
    Applicant: BEIJING UNISTRONG SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Lizheng Tang, Di Zhang