ALEXANDRIA, Va., June 2 -- United States Patent no. 12,642,189, issued on June 2, was assigned to 9422-8053 QUEBEC INC. (Victoriaville, Canada).

"Brush cutter rotor" was invented by Luc D'Amours (Quebec, Canada) and Mahmood Akbari (Quebec, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A brush cutter rotor comprising cutting tooth assemblies sequentially arranged along a longitudinal axis of the brush cutter rotor, and azimuthally offset to make up intertwined spirals of cutting tooth assemblies. The cutting tooth assemblies of immediately adjacent tracks are arranged to provide for a longitudinal gap in-between, and separating blades are provided within said longitudinal gap on each side of each trac...