ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,349, issued on Feb. 24, was assigned to Otis Elevator Co. (Farmington, Conn.).
"Elevator safety systems with landing door monitoring" was invented by Helge Krambeck (Berlin) and Peter Herkel (Berlin).
According to the abstract* released by the U.S. Patent & Trademark Office: "An safety system (40) including: a plurality of landing door sensors (26), each landing door sensor (26) being configured to provide a warning signal (52) when a respective landing door (22) is open; at least one position sensor (14) configured to determine a current position (54) of an elevator car (10) moving within a hoistway (2); an elevator brake (7) configured to halt the motion of the elevator car (10...