ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,504, issued on March 17, was assigned to Milwaukee Electric Tool Corp. (Brookfield, Wis.).

"Battery pack interface" was invented by Kyle J. Radovich (West Bend, Wis.), Cameron R. Schulz (Milwaukee), Mitchell Carlson (Lisbon, Wis.), John G. Marx (Hartford, Wis.), Paul Rossetto (Milwaukee) and David M. Schwalbach (Milwaukee).

According to the abstract* released by the U.S. Patent & Trademark Office: "An interface for a battery pack and an electrical combination. The interface may include a battery-receiving portion configured to receive a battery pack and including a cavity. The cavity is defined by a pair of sidewalls with rails defining a groove between the rails and a lower sur...