US Patent Issued to Andreas Stihl on July 7 for "Work apparatus with internal combustion engine" (German Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,673,408, issued on July 7, was assigned to Andreas Stihl AG & Co. KG (Waiblingen, Germany).

"Work apparatus with internal combustion engine" was invented by Robert Kohli (Winnenden, Germany), Tilman Seidel (Stuttgart, Germany), Mario Kuschewski (Weil der Stadt, Germany) and Jens Riehmann (Stuttgart, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A work apparatus has an internal combustion engine. The internal combustion engine includes a crankcase in which a crankshaft is mounted rotatably about an axis of rotation. The work apparatus includes a fan spiral and a fan wheel arranged in the fan spiral for conveying cooling air for the internal combu...