Becasue they ELEVATE you to different stories in a building! i hope that helps. :P
elevators are machines installed in tall buildings ,to take people to upper floors in few seconds. Answer el·e·va·tor (ĕl'ə-vā'tər) n. A platform or an enclosure raised and lowered in a...
of airplanes, a movable control surface, usually near the tail, controls pitch
No. Otis has purchased many companies over it's long history, but Thyssen Krupp Elevators is not one of them.
All manufacturers and service companies can purchase innovation fixtures. There is no one manufacturer who uses them exclusively.