Patents by Inventor Pingyang Zheng

Pingyang Zheng 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).

  • Double-plate gate valve and use of the same
    Patent number: 11131395
    Abstract: A double-plate gate valve includes a valve body, a valve cover, a valve stem, a guide plate, a goggle plate assembly, a diversion hole assembly, a disc spring assembly and a valve plate and wedge assembly. The goggle plate assembly provides mounting support for the diversion hole assembly and the valve plate and wedge assembly in the valve chamber, the goggle plate assembly is movable along with the diversion hole assembly and the valve plate and wedge assembly in the valve chamber, and floating seals are formed at a contact surface between the diversion hole assembly and the guide plate, and at a contact surface between the valve plate and wedge assembly and the guide plate. A face-to-face distance and a sealing force between a sealing surface of the diversion hole assembly and a sealing surface of the valve body are adjustable.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: September 28, 2021
    Assignees: BEIJING AEROSPACE PROPULSION INSTITUTE, BEIJING AEROSPACE PETROCHEMICAL TECHNOLOGY & EQUIPMENT ENGINEERING CORPORATION LIMITED
    Inventors: Fan Yang, Jinxian Liu, Yingren Ding, Jin Guo, Xiang Su, Huan Yang, Jingbo Han, Pingyang Zheng
  • Double-Plate Gate Valve and Use of the Same
    Publication number: 20200292086
    Abstract: A double-plate gate valve includes a valve body, a valve cover, a valve stem, a guide plate, a goggle plate assembly, a diversion hole assembly, a disc spring assembly and a valve plate and wedge assembly. The goggle plate assembly provides mounting support for the diversion hole assembly and the valve plate and wedge assembly in the valve chamber, the goggle plate assembly is movable along with the diversion hole assembly and the valve plate and wedge assembly in the valve chamber, and floating seals are formed at a contact surface between the diversion hole assembly and the guide plate, and at a contact surface between the valve plate and wedge assembly and the guide plate. A face-to-face distance and a sealing force between a sealing surface of the diversion hole assembly and a sealing surface of the valve body are adjustable.
    Type: Application
    Filed: January 28, 2019
    Publication date: September 17, 2020
    Inventors: Fan Yang, Jinxian Liu, Yingren Ding, Jin Guo, Xiang Su, Huan Yang, Jingbo Han, Pingyang Zheng