ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,847, issued on Sept. 23, was assigned to Directional Air Drilling International LLC (Midland, Texas).
"Air motor assembly" was invented by Michael P. Sanders (Lexington, Ky.) and Michael K. Smith (Midland, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "An air motor apparatus for air drilling includes a filter assembly at an uphole end that receives compressed air and diverts a constant pressure portion through a filter to a vane motor and a remaining portion to an air hammer at a downhole end via bypass conduits. The apparatus includes one or more sensors for measuring drilling conditions, the sensors being connected to a communication device...