US Patent Issued on Dec. 2 for "Systems and methods for prevention of rotation in permanent magnet motors" (Oklahoma Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,850, issued on Dec. 2.

"Systems and methods for prevention of rotation in permanent magnet motors" was invented by Xiaonan Lu (Tulsa, Okla.), Joseph Robert McManus (Tulsa, Okla.), Howard G. Thompson (Claremore, Okla.) and Sean A. Cain (Tulsa, Okla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for preventing rotation of an ESP motor when the motor is not powered on, thereby preventing the motor from acting as a generator when fluid flowing through the pump section of the ESP applies a torque to the motor. In one embodiment, an ESP has a motor section, a pump section. The ESP may include a directional coupling that allows unidirec...