ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,220, issued on Sept. 16, was assigned to Milwaukee Electric Tool Corp. (Brookfield, Wis.).
"Battery-powered stand-alone motor unit" was invented by Connor P. Sprague (Milwaukee), Evan M. Glanzer (Milwaukee) and John E. Koller (Brookfield, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A stand-alone motor unit for use with a piece of power equipment includes a housing, an electric motor, a battery pack to provide power to the motor, a battery receptacle arranged on the housing and configured to receive the battery pack, and a control panel arranged on either the housing or the piece of power equipment. The control panel is operable to control o...