Patents by Inventor Jingna XIE

Jingna XIE 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).

  • Patent number: 11396810
    Abstract: A full-length screen pipe hole protection device and method with pressurized hole packing in a soft coal seam relates to the field of gas drainage technologies. The device includes a grouting system, a drainage system and a hole fixing system. The grouting system injects a pressurized sealing material into a borehole through a pressure pump to increase a sealing effect of the borehole. The drainage system drains gas in the middle of air holes on metal baffle plates and hole fixing screen pipes through a drainage pipe to increase flowability of gas. The hole fixing system is inside the borehole and fixed with the metal baffle plates, and the hole fixing screen pipes are fixedly connected with each other through fitting mouths and fitting buckles. The device is fixedly mounted in the gas drainage borehole. After hole packing, the drainage pipe is connected with a drainage pump to drain gas.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: July 26, 2022
    Assignee: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Guanhua Ni, Kai Dong, Weimin Cheng, Jingna Xie, Gang Wang, Yixin Liu, Qiming Huang
  • Publication number: 20220205361
    Abstract: A full-length screen pipe hole protection device and method with pressurized hole packing in a soft coal seam relates to the field of gas drainage technologies. The device includes a grouting system, a drainage system and a hole fixing system. The grouting system injects a pressurized sealing material into a borehole through a pressure pump to increase a sealing effect of the borehole. The drainage system drains gas in the middle of air holes on metal baffle plates and hole fixing screen pipes through a drainage pipe to increase flowability of gas. The hole fixing system is inside the borehole and fixed with the metal baffle plates, and the hole fixing screen pipes are fixedly connected with each other through fitting mouths and fitting buckles. The device is fixedly mounted in the gas drainage borehole. After hole packing, the drainage pipe is connected with a drainage pump to drain gas.
    Type: Application
    Filed: November 9, 2020
    Publication date: June 30, 2022
    Inventors: Guanhua NI, Kai DONG, Weimin CHENG, Jingna XIE, Gang WANG, Yixin LIU, Qiming HUANG