US Patent Issued to ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY on Sept. 23 for "Sealed coring device for underground coalbed" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,820, issued on Sept. 23, was assigned to ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY (Anhui, China).

"Sealed coring device for underground coalbed" was invented by Sheng Xue (Huainan, China), Lefan Wang (Huainan, China), Xiaoliang Zheng (Huainan, China), Ping Liu (Huainan, China), Chen Shen (Huainan, China), Gang Jin (Huainan, China), Weibo Liu (Huainan, China), Sihang Zhang (Huainan, China) and Jingyi Zhou (Huainan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The sealed coring device for an underground coalbed comprises a rib drill pipe assembly, a tail bearing pack, a motor cylinder assembly and a sampling cylinder assembly. The rib drill...