Patents by Inventor Qianting HU

Qianting HU 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).

  • Ground wellhole dedicated protective pipe for gas extraction of mining-induced area
    Patent number: 10883320
    Abstract: A ground wellhole dedicated protective pipe, disposed inside a ground wellhole for gas extraction of a mining-induced area, includes a casing, and a chain inside the casing and slidable relative to the casing. The chain includes a chain formed by a plurality of chain drums through serial connection, and a detachable connecting piece connecting between chains. A plurality of air holes is opened in the chain drum along an axial direction of the chain drum.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: January 5, 2021
    Assignee: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Wei Lu, Qianting Hu, Guansheng Qi, Weimin Cheng, Jinliang Li, Dong Wang, Zhen Liu
  • GROUND WELLHOLE DEDICATED PROTECTIVE PIPE FOR GAS EXTRACTION OF MINING-INDUCED AREA
    Publication number: 20200217202
    Abstract: Disclosed is a ground wellhole dedicated protective pipe for gas extraction of a mining-induced area. The ground wellhole dedicated protective pipe for gas extraction of a mining-induced area is disposed inside a ground wellhole for gas extraction of the mining-induced area and the ground wellhole dedicated protective pipe for gas extraction of a mining-induced area includes a casing and a chain that is disposed inside the casing and slidable relative to the casing, wherein the chain includes a plurality of chain drums and connecting pieces movably connecting the adjacent chain drums, and a plurality of air holes are opened in the chain drum along an axial direction of the chain drum.
    Type: Application
    Filed: July 13, 2018
    Publication date: July 9, 2020
    Inventors: Wei LU, Qianting HU, Guansheng QI, Weimin Cheng, Jinliang LI, Dong WANG, Zhen LIU