ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,433,192, issued on Oct. 7, was assigned to Andreas Stihl AG & Co. KG (Waiblingen, Germany).
"Self-propelled work apparatus" was invented by Markus Gassner (Koessen, Austria), Robert Kugler (Kufstein, Austria), Alberto Bellato (Axams, Austria) and Christoph Wohlfrom (Heubach, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A self-propelled work apparatus, especially a lawnmower, includes a chassis, at least one tool and a drive motor for driving the tool. The tool is height-adjustable with respect to the chassis. A setting unit is provided to set the relative position of the tool with respect to the chassis. The setting unit includes an actuating m...