ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,564, issued on Sept. 29, was assigned to MILWAUKEE ELECTRIC TOOL Corp. (Brookfield, Wis.).
"Plate compactor" was invented by Joseph W. Miller (Waukesha, Wis.), Ian C. Richards (Milwaukee) and Evan M. Glanzer (Milwaukee).
According to the abstract* released by the U.S. Patent & Trademark Office: "A compactor includes a plate, a frame coupled to the plate, and an exciter assembly coupled to the plate and including an exciter shaft, an exciter pulley on the exciter shaft, and an eccentric weight on the exciter shaft. The compactor also includes a motor coupled to the frame and having an output shaft and a drive pulley on the output shaft, a belt wrapped around the exciter pulley an...