ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,305, issued on Jan. 20, was assigned to SCHLUMBERGER TECHNOLOGY Corp. (Sugar Land, Texas).
"Axial sinusoidal pulser" was invented by Edward Richards (Cheltenham, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A mud pulse telemetry system is disclosed including a drill string positioned within a wellbore, a restriction positioned within the drill string and configured to create a pressure differential between a high pressure region and a low pressure region of the drill string, a piston including a piston opening positioned within a piston chamber and movable along an axis between a first position and a second position, a valve movable ...