1
John Randazzo, John D Barrett, Christopher J Elliott, David W McKee, Hugh J O Donnell, John P Wesson, Blair J Cohen: Method of replacing sheave liner. Otis Elevator Company, August 11, 1998: US05792294 (23 worldwide citation)

A sheave liner for an elevator system sheave that supports a hoist rope with an elevator car suspended therefrom is replaced without having to remove the hoist ropes and without having to hang the elevator car by means other than the hoist ropes. The existing liner is cut and removed while the eleva ...


2
James A Rivera, Richard E Kulak, Michael J Tracey, Valery G Sheynkman, Duane R Stupienski, Blair J Cohen: Elevator evacuation deterrent device. Otis Elevator Company, October 13, 1998: US05819877 (13 worldwide citation)

A simplified elevator car door lock assembly locks an elevator car door if the car is outside a landing zone and there is an attempt to open those doors. The car doors are connected to the hoistway doors by a pair of vanes mounted on the car door and a pair of rollers mounted on the hoistway door. A ...