On June 22, Thyssenkrupp will unveil afirst prototype of its Multi elevator that uses magnets instead of cables tomove multiple cars up, down and sideways, reducing the space needed for shaftsand greatly expanding people-carrying capacity. The technology, which may be installedby customers as early as 2019, has the potential to revolutionize buildingdesign and the market for elevators, according to Schierenbeck. An agreement isready on the first project to test the market, he said without elaborating.