ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,069, issued on March 24, was assigned to Milwaukee Electric Tool Corp. (Brookfield, Wis.).
"Rotary power tool" was invented by Kyle Greunke (Auborndale, Wis.), Andrew D. Van Hoorn (Menomonee Falls, Wis.), Kevin A. McLachlan (Brookfield, Wis.), Julia C. Marsh (Milwaukee), Mauricio Builes Zapata (Wauwatosa, Wis.), Daryl S. Richards (Sussex, Wis.), Beth E. Cholst (Wauwatosa, Wis.) and Jeffery D. Spraggon (Milwaukee).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary hammer tool can include a housing, a first motor supported by the housing, a spindle rotated by the first motor, a second motor supported by the housing, and a reciprocation mechanism ...