ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,673, issued on July 28, was assigned to MILWAUKEE ELECTRIC TOOL Corp. (Brookfield, Wis.).

"Plate compactor" was invented by Evan M. Glanzer (Milwaukee) and John E. Koller (Brookfield, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compactor includes a plate, a shaft rotatably supported upon the plate, an electric motor configured to cause rotation of the shaft, and an eccentric mass arranged to rotate on the shaft, causing the plate to vibrate in response to rotation of the eccentric mass. The eccentric mass is configured to translate along the shaft."

The patent was filed on July 7, 2021, under Application No. 17/369,528.

*For further info...