ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,620, issued on May 26, was assigned to Black & Decker Inc. (New Britain, Conn.).

"Power tool with compact motor assembly" was invented by David J. Smith (Columbia, Md.), Justin H. Ayers (Jarrettsville, Md.) and Abraham Sanchez (Lutherville-Timonium, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power tool is provided including a tool housing; a rear tool cap separately formed from the tool housing and mounted on a rear end of the tool housing; and a motor. The motor includes a stator, a rotor shaft; a rear bearing mounted on the rotor shaft and supported by a central bearing pocket of the rear tool cap, and a rotor. The rear tool cap further c...