US Patent Issued to MILWAUKEE ELECTRIC TOOL on June 2 for "Inertial fan for power tool" (Wisconsin Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,209, issued on June 2, was assigned to MILWAUKEE ELECTRIC TOOL Corp. (Brookfield, Wis.).

"Inertial fan for power tool" was invented by Matthew R. Bailey (Racine, Wis.), Will Didier (Cedarburg, Wis.) and Jeffrey C. Hessenberger (Neosho, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power tool includes an electric motor having a motor shaft and a fan assembly attachable to the motor shaft for rotation in a first rotational direction to generate an airflow for cooling the electric motor. The fan assembly includes a fan body, a bearing that rotates with the fan body, and a flywheel having a central portion that defines a central bore configured t...