ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,902, issued on Feb. 24, was assigned to KEMROC HOLDING GMBH (Leimbach, Germany).
"Add-on milling unit with cross-cutting heads at an angle to each other and output gears with belevoid toothing" was invented by Klaus Ertmer (Leimbach, Germany) and Mina Zeyada (Bad Salzungen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A milling unit attachment is provided with two transverse cutter heads at an angle to each other. The milling unit attachment comprises a housing with a mounting bracket at the rear end of the milling unit attachment for fastening to a movable carrier arm of a carrier device, preferably an excavator or a similar construction ...