Patents by Inventor Xijiang YAO

Xijiang YAO 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).

  • Safety pin locking device for workpiece turnover and workpiece turnover system
    Patent number: 12152621
    Abstract: A safety pin locking device for workpiece turnover includes a safety pin, a triangular lock plate, an elastic positioning pin, and a lockset. The safety pin is configured to be inserted into a base and an overturnable workpiece to lock an angle of the overturnable workpiece relative to the base. A first corner end of the triangular lock plate is connected to an axial surface of the safety pin by a fastener, and the triangular lock plate can rotate around the fastener. The elastic positioning pin is mounted at a second corner end of the triangular lock plate and is configured to be inserted into positioning counterbores at two different positions on the axial surface of the safety pin to limit a position of the triangular lock plate. The lockset is mounted at a third corner end of the triangular lock plate.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: November 26, 2024
    Assignee: XUZHOU XCMG MINING MACHINERY CO., LTD.
    Inventors: Hongyi Qin, Jieshan Zhang, Zhou Wang, Xijiang Yao, Kuipu Qiao, Zhuo Chen, Zhiming Tang, Ning Du, Ming Zhao
  • SAFETY PIN LOCKING DEVICE FOR WORKPIECE TURNOVER AND WORKPIECE TURNOVER SYSTEM
    Publication number: 20240263661
    Abstract: A safety pin locking device for workpiece turnover includes a safety pin, a triangular lock plate, an elastic positioning pin, and a lockset. The safety pin is configured to be inserted into a base and an overturnable workpiece to lock an angle of the overturnable workpiece relative to the base. A first corner end of the triangular lock plate is connected to an axial surface of the safety pin by a fastener, and the triangular lock plate can rotate around the fastener. The elastic positioning pin is mounted at a second corner end of the triangular lock plate and is configured to be inserted into positioning counterbores at two different positions on the axial surface of the safety pin to limit a position of the triangular lock plate. The lockset is mounted at a third corner end of the triangular lock plate.
    Type: Application
    Filed: November 19, 2021
    Publication date: August 8, 2024
    Applicant: XUZHOU XCMG MINING MACHINERY CO., LTD.
    Inventors: Hongyi QIN, Jieshan ZHANG, Zhou WANG, Xijiang YAO, Kuipu QIAO, Zhuo CHEN, Zhiming TANG, Ning DU, Ming ZHAO