ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,459, issued on Jan. 28, was assigned to Shear Bits Inc. (Spring, Texas).
"Wellbore reaming tool having fixed mounted gouging cutters" was invented by John James Herman (Cypress County, Canada) and Carl M. Hoffmaster (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A reaming tool includes a reaming tool body configured to be coupled within a drill string or a string of drilling tools. A plurality of reaming blocks is attached to the reaming tool body at circumferentially spaced apart locations. At least one reaming block comprises at least a first row of gouging cutters and a second row of gouging cutters. The gouging cutters in the first row ...