Patents by Inventor Chengang SHI

Chengang SHI 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).

  • Tower packer for packing cement slurry of jacket
    Patent number: 11634879
    Abstract: A tower packer for packing cement slurry of a jacket is disposed between a steel pile and an inner sleeve. It includes a supporting ring, sealing rings and a limiting ring. The supporting ring and the limiting ring are respectively installed on an outer surface of the inner sleeve in the steel pile. A plurality of sealing rings stacked from top to bottom along the sleeving direction of the inner sleeve are arranged between the supporting ring and the limiting ring. Each sealing ring is hermetically and slidably connected along a radial direction. The sealing ring at the bottom is always supported by the supporting ring. The sealing ring at the top abuts a lower surface of the limiting ring. When the inner sleeve is sleeved into the steel pile, the outer surface of the sealing ring with maximum outer diameter hermetically abuts the inner surface of the steel pile.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: April 25, 2023
    Assignee: HENGXIANG TECHNOLOGY INC., LTD
    Inventors: Baoquan Liu, Meiqin Ma, Jiande Tian, Jianbang Sun, Yasheng Zhang, Chengang Shi, Ting Yin, Dongze Zhang, Yongxiao Lei
  • TOWER PACKER FOR PACKING CEMENT SLURRY OF JACKET
    Publication number: 20210324595
    Abstract: A tower packer for packing cement slurry of a jacket is disposed between a steel pile and an inner sleeve. It includes a supporting ring, sealing rings and a limiting ring. The supporting ring and the limiting ring are respectively installed on an outer surface of the inner sleeve in the steel pile. A plurality of sealing rings stacked from top to bottom along the sleeving direction of the inner sleeve are arranged between the supporting ring and the limiting ring. Each sealing ring is hermetically and slidably connected along a radial direction. The sealing ring at the bottom is always supported by the supporting ring. The sealing ring at the top abuts a lower surface of the limiting ring. When the inner sleeve is sleeved into the steel pile, the outer surface of the sealing ring with maximum outer diameter hermetically abuts the inner surface of the steel pile.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 21, 2021
    Inventors: Baoquan LIU, Meiqin MA, Jiande TIAN, Jianbang SUN, Yasheng ZHANG, Chengang SHI, Ting YIN, Dongze ZHANG, Yongxiao LEI