ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,457, issued on May 20, was assigned to Halliburton Energy Services Inc. (Houston).
"Downhole tractor drive module" was invented by Shiao Loong Tang (Singapore), Simon Shye Kwong Wai (Singapore), Hock Soon Tiew (Singapore) and How Jiun Irvin Yuen (Singapore).
According to the abstract* released by the U.S. Patent & Trademark Office: "A downhole tractor drive module is provided. The downhole tractor drive module includes a first bevel gearbox, a first drive arm coupled to the first bevel gearbox, a connecting shaft, a second bevel gearbox, and a second drive arm coupled to the second bevel gearbox. The first bevel gearbox can include an input shaft in communication with the motor, ...