US Patent Issued to Parker-Hannifin on July 7 for "Gear control system for vibration attenuation" (Mississippi, Florida Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,507, issued on July 7, was assigned to Parker-Hannifin Corp. (Cleveland).

"Gear control system for vibration attenuation" was invented by John W. Burrell (Olive Branch, Miss.), John Loeffler (Sun City Center, Fla.) and Brian L. Rang (Olive Branch, Miss.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power take off unit includes an input gear, an output gear, and an intermediary gear that cooperate to transfer power from a rotational power source to an operating target. The power take off unit has a control module that biases the intermediary gear relative to the input gear and the output gear to reduce gear rattle vibrations associated with interme...