ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,284, issued on April 15, was assigned to Halliburton Energy Services Inc. (Houston).
"Electric submersible pump (ESP) assembly shaft coupling with axial load handling capability" was invented by Dezhi Zheng (Tulsa, Okla.), Donn J. Brown (Tulsa, Okla.), Wenjie Jie Guang (Tianjin, China), Yuzhu Hu (Houston) and Jason Eugene Hill (Tulsa, Okla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric submersible pump (ESP) assembly. The ESP assembly comprises a first ESP component having a first drive shaft defining a plurality of male splines and defining at least one cut-out area; a second ESP component having a second drive shaft defining a pluralit...