Patents by Inventor Zhiyun FENG

Zhiyun FENG 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).

  • STRAIGHT-STROKE NO-MATERIAL-LOSS HIGH-TEMPERATURE NORMAL-PRESSURE FILLER SEALING STRUCTURE
    Publication number: 20230250893
    Abstract: The present disclosure provides a straight-stroke no-material-loss high-temperature normal-pressure filler sealing structure, comprising: an upper valve cover with an accommodation cavity; a valve stem, passing through the accommodation cavity of the upper valve cover; a filler component, located in the accommodation cavity and sleeved on the valve stem; a filler gland sleeved on the valve stem, whose bottom is inserted into an opening of the accommodation cavity.
    Type: Application
    Filed: April 20, 2023
    Publication date: August 10, 2023
    Applicant: WUZHONG INSTRUMENT CO., LTD.
    Inventors: Yushan MA, Haixia SU, Zhandong CHANG, Zhiyun FENG, Runhai HOU