US Patent Issued to POWERCHINA HUADONG ENGINEERING on Oct. 7 for "Rapid assembly and automatic sampling drilling tool for frozen soil layer exploration" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,588, issued on Oct. 7, was assigned to POWERCHINA HUADONG ENGINEERING CORPORATION LIMITED (Zhejiang, China).

"Rapid assembly and automatic sampling drilling tool for frozen soil layer exploration" was invented by An Liu (Zhejiang, China), Zhigang Shan (Zhejiang, China), Jian Wang (Zhejiang, China), Peng Peng (Zhejiang, China), Kun Zhang (Zhejiang, China), Weida Ni (Zhejiang, China) and Meifeng Niu (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rapid assembly and automatic sampling drilling tool for frozen soil layer exploration includes a fixed flow divider, a flow guide pipe, a coring pipe and a drill bit. The fixed flow divider i...