ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,740, issued on March 17, was assigned to MILWAUKEE ELECTRIC TOOL Corp. (Brookfield, Wis.).
"Plate compactor" was invented by Ian C. Richards (Shorewood, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A compactor includes a plate, a vibration mechanism configured to impart a vibrating motion on the plate, and a housing configured to support control electronics therein and defining a battery receptacle upon which a battery pack is connectable. The control electronics are configured to selectively activate the vibration mechanism using electrical current from the battery pack. A frame extends between the plate and the housing, and a vibration iso...