ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,961, issued on Jan. 27, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Brake and wear indicator for expandable downhole tool" was invented by Philip Trunk (Houston) and Balasubramanian Durairajan (Sugar Land, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "An expandable tool includes a reamer block, a cutting element coupled to the reamer block, and a brake element embedded in the reamer block. The cutting element includes a cutting face extending to a gauge radius of the reamer block. The cutting element has a cutting rake angle formed on a radial plane between the cutting face and a normal line orthogonal to a borehole wa...