ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,710, issued on April 7, was assigned to TRI-TUBE DRILLING SYSTEMS PTY LTD (Australia).
"Drill string and components therefor" was invented by Timothy Daniel Westcott (Yanchep, Australia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A drilling assembly includes a drill bit connected to a gas injector sub-assembly, which is connected to the bottom of a drill rod. The top of the drill rod is connected above ground to an entry sub-assembly, which has connected atop a drill rig rotary head, which drives the connected drill rod. As drilling proceeds, further drill rods may be joined between the drill rod in the hole being drilled and the entry sub-assemb...