ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,700, issued on July 14, was assigned to Otis Elevator Co. (Farmington, Conn.).

"Passenger conveyor system and anti-collision device for step and comb plate" was invented by Baoyu Wang (Haining, China), Kaisheng Xu (Haining, China) and De Wu (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A passenger conveyor system and an anti-collision device for step and comb plate. The passenger conveyor system includes a step chain having a plurality of steps, a comb plate and an anti-collision device, the anti-collision device includes an actuating mechanism connected to the comb plate and configured to, when a moving distance of a step adjacent...