US Patent Issued to TK Elevator Innovation and Operations on Nov. 25 for "Elevator system having two shafts" (German Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,700, issued on Nov. 25, was assigned to TK Elevator Innovation and Operations GmbH (Dusseldorf, Germany).

"Elevator system having two shafts" was invented by Bernd Altenburger (Neuhausen, Germany) and Tobias Wenzelburger (Stuttgart, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An elevator system may include upper and lower shuttle cars in a first shaft. The shuttle cars are at least at times fixedly coupled to one another and can move vertically upward and downward together. Upper and lower distribution cars in a second shaft may be movable vertically upward and downward separately. The upper shuttle and upper distribution cars may each co...