ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,082, issued on May 19, was assigned to Tempress Technologies Inc. (Renton, Wash.).
"Rotary flow control apparatus" was invented by Jack J. Kolle (Seattle).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary flow control apparatus may comprise a rotary drive mechanism coupled to a ball controller comprising a ball disposed within a cavity. The apparatus may be disposed within a tubing string in a wellbore. Fluid flow is provided though the tubing, causing the rotation of the rotary drive mechanism. The flow passes through a ball cage above a seat disc that incorporates a flow port. The ball orbits around the cavity in response to the motion of an a...