US Patent Issued to Otis Elevator on April 22 for "Device and method for monitoring an elevator system" (American, German Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,987, issued on April 22, was assigned to Otis Elevator Co. (Farmington, Conn.).

"Device and method for monitoring an elevator system" was invented by Derk Oscar Pahlke (Berlin), Tadeusz Pawel Witczak (Farmington, Conn.), Craig Drew Bogli (Avon, Conn.) and Yrinee Michaelidis (Farmington, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of calibrating a monitoring device (20) for monitoring movement of a movable component (2, 12, 19) of an elevator system (2) comprises detecting (120) a travel time (triangletk) between a starting time (tk) and a stopping time (t'k) as well as acceleration (a(t)) of at least one movement of the movable comp...