Patents by Inventor Yuanda REN

Yuanda REN 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).

  • Static crushing directional anchor withdrawal method at end of large-mining-height working face
    Patent number: 12607121
    Abstract: A static crushing directional anchor withdrawal method at the end of a large-mining-height working face is provided. The method includes the following steps: designing key parameters of boreholes for static crushing, including a borehole position, a spacing between boreholes, a borehole depth, and a borehole diameter at the end of a working face; then determining parameters of a static crushing agent grouting technology device for the construction of a static crushing process; and carrying out an anchor withdrawal operation at the end. The method can solve the problem of difficult roof anchor withdrawal at the end of a working face, is beneficial to shortening the hanging roof distance of the working face, preventing the sudden caving of hanging roofs at the upper and lower corners of the working face and the potential safety hazard caused by gas overrun, and guaranteeing the normal use of the mining roadway.
    Type: Grant
    Filed: May 23, 2023
    Date of Patent: April 21, 2026
    Assignee: Huating Coal Group Co., Ltd.
    Inventors: Xuandong Li, Jinsheng Ma, Zhihong Song, Lingyun Li, Chao Gao, Peng Li, Fuqi Wang, Yuanda Ren, Longfei Wang, Hua Zhang, Jiangning Wang, Xiaogang Li, Huiqiang Zhao, Zhixiang Li, Jun Wu, Bin Tian, Bin Zheng, Dongdong Wang, Wenfei Rui
  • STATIC CRUSHING DIRECTIONAL ANCHOR WITHDRAWAL METHOD AT END OF LARGE-MINING-HEIGHT WORKING FACE
    Publication number: 20240076985
    Abstract: For the problem of difficult roof anchor withdrawal at the end of a working face, a static crushing directional anchor withdrawal method at the end of a large-mining-height working face is provided. The method includes the following steps: designing key parameters of boreholes for static crushing, including a borehole position, a spacing between boreholes, a borehole depth, and a borehole diameter at the end of a working face; then determining parameters of a static crushing agent grouting technology device for the construction of a static crushing process; and carrying out an anchor withdrawal operation at the end.
    Type: Application
    Filed: May 23, 2023
    Publication date: March 7, 2024
    Inventors: Xuandong LI, Fuqi WANG, Zhixiang LI, Jun WU, Chao GAO, Bin TIAN, Jiangning WANG, Yuanda REN, Dongdong WANG, Longfei WANG, Hua ZHANG, Jianhua CHEN, Zhenghu MO, Xiaogang LI