US Patent Issued to Southwest Petroleum University on July 14 for "Torque-adaptive impact tool suitable for PDC bit" (Chinese Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,385, issued on July 14, was assigned to Southwest Petroleum University (Chengdu, China).

"Torque-adaptive impact tool suitable for PDC bit" was invented by Shiwei Niu (Chengdu, China), Yingxin Yang (Chengdu, China), Gao Li (Chengdu, China), Kuilin Huang (Chengdu, China), Chunliang Zhang (Chengdu, China), Haitao Ren (Chengdu, China) and Lian Chen (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A torque-adaptive impact tool suitable for a PDC (Polycrystalline Diamond Compact) bit is provided, which includes a PDC bit, a rotary-driving power device, and a torque-adaptive impact tool above the PDC bit. The torque-adaptive impact tool is l...