ALEXANDRIA, Va., July 16 -- United States Patent no. 12,358,759, issued on July 15, was assigned to Otis Elevator Co. (Farmington, Conn.).
"Elevator car ceiling access system" was invented by Antonio Martins (Vernon, Conn.) and Yingxin Gao (Farmington, Conn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An elevator car includes an elevator car floor, a plurality of side walls, and a ceiling defining an interior of the elevator car. A ceiling panel access system includes a drum sheave arranged within one of the side walls, at least one locking pin arranged on a top of the elevator car and configured to releasably engage with a ceiling access panel to lock the ceiling access panel in a locked state and diseng...