ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,061, issued on June 3, was assigned to MILWAUKEE ELECTRIC TOOL Corp. (Brookfield, Wis.).

"Floor tool attachment for use with vacuum cleaner" was invented by Scott T. Moeller (Richfield, Wis.) and Christopher S. Spaulding (Green Bay, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An attachment for a vacuum cleaner includes a head, a brush roll, an electric motor, and an attachment conduit. The head includes a suction opening, a brush roll cavity, and a battery cavity defined therein. The brush roll cavity is in fluid communication with the suction opening. The battery cavity has an elongate shape and a first longitudinal axis. The brush roll is r...