Patents by Inventor Zhaobao Hou

Zhaobao Hou 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: 11346218
    Abstract: Provided is a guiding type miniature pipe-jacking construction method, comprising the following steps: in an originating well, perforating an operation hole in an inner wall of the originating well with a trepanning apparatus; mounting a laser orientation instrument and a laser guided drill bit, driving a guide bar connected with the laser guided drill bit into the opened operation hole with a thrusting apparatus, and driving the guide bar into a soil mass with the thrusting apparatus; jacking a plurality of mud discharging pipes following the guide bar successively into the soil mass with the thrusting apparatus; jacking a plurality of mud discharging screw rods into the mud discharging pipes with the thrusting apparatus; jacking a pipe-jacking machine head following the mud discharging pipes into the soil mass with the thrusting apparatus, a cutter head on the pipe-jacking machine head rotating to drive the mud discharging screw rods to rotate.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: May 31, 2022
    Assignee: GUANGZHOU MUNICIPAL ENGINEERING GROUP LTD.
    Inventors: Guanfeng An, Jingda Ouyang, Haibin Yu, Rong Zhang, Tianjun Liu, Tan Wang, Yuanwen Li, Zhaobao Hou, Deyi Xu