ALEXANDRIA, Va., May 5 -- United States Patent no. 12,617,655, issued on May 5.
"Elevator system" was invented by Josef Husmann (Lucerne, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "An elevator system has an elevator car that can travel vertically along a vertical track including a stationary vertical guide rail, and that can travel horizontally by a car transfer device. The car transfer device has a horizontal displacement unit with a vertical guide rail piece that guides the elevator car in the horizontal displacement unit, the horizontal displacement unit being movable into a transit position in which the guide rail piece and the stationary vertical guide rail together form a section of the...