Patents by Inventor Longjie Yang

Longjie Yang 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-temperature quick-opening spherical sealing shut-off valve
    Patent number: 11280416
    Abstract: A high-temperature quick-opening spherical sealing shut-off valve that includes a valve body, a valve seat, a valve cover, a valve clack, a valve rod, and a driving device for driving the valve rod to rotate. A friction-adjusting mechanism is mounted on the valve rod. The valve rod is arranged coaxially and connected to the valve clack. A gas outlet passage is formed in the valve body and the valve cover. The valve clack and valve seat are located in the path of the gas outlet passage. The valve seat is mounted in the valve body and has a first through hole communicating with the gas outlet passage. The valve clack has a second through hole corresponding to the first through hole. The gas outlet passage has three states: open when the first hole fully overlaps the second hole, half-open when the holes partially overlap, and closed when no overlap.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: March 22, 2022
    Assignee: ZHEJIANG PETROCHEMICAL VALVE CO., LTD.
    Inventors: Jingpan Su, Xiheng Zhang, Hongqiang Yin, Huaimin Wu, Hongquan Xue, Longjie Yang, Jia Zhao, Sunli Zhang, Chengshuai Yang, Liaoyong Gu