US Patent Issued to CNPC USA, Beijing Huamei, China National Petroleum on June 24 for "Force modulation cartridge system for a drill bit" (Chinese, American Inventors)

ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,428, issued on June 24, was assigned to CNPC USA Corp. (Houston), Beijing Huamei Inc. (Beijing) and China National Petroleum Corp. (Beijing).

"Force modulation cartridge system for a drill bit" was invented by Weixiong Wang (Houston), Chris Cheng (Houston), Qiang Fu (Korla, China) and Jingcheng Zhang (Korla, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The multi-directional force modulation cartridge system has a modular relationship the drill bit so that the cutting profile of a cutter in the drill bit can be adjusted without requiring modification of the drill bit itself. The force modulation cartridge system includes a cutter and a cartri...