ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,297, issued on Feb. 17, was assigned to Q2 Artificial Lift Services LLC (Midland, Texas).
"Robust valve rod guide assembly" was invented by Santhosh Ramaswamy (Conroe, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve rod guide assembly includes a unitary rod guide body having an upper end, which may have a clutch feature, and a lower end, which may have a thread feature, where an internal bore extends between both ends. A movable insert is disposed inside the internal bore which shoulders against a positive stop at the upper end of the valve rod guide housing. The movable insert is retained inside the unitary rod guide body through a ret...