Otis Elevator Company

Cheong SikShin

Arthur Hsu

Theresa M Christy

Hansoo Shim

Harry Terry

Frank M Sansevero

Harold Terry

Jannah A Stanley

John M Milton-Benoit

Hideyuki Honma

Toshimitsu Mori

Mark Ross

Destination calls entered by means of buttons (-) are each given a designation unique to the car and pick-up floor for that call and other calls to be serviced therewith, such as a letter (A-E), which is different from any other outstanding calls. Calls can be reassigned among elevators (UL, LL, UR, LR) whether they are in the same or different hoistways (LF, RT). Signs (--) adjacent each hoistway are illuminated to display the designation of any call which is being answered by an elevator car approaching the floor. Thus, passengers are informed when their call is being answered by the signs identifying the call, rather than identifying any particular car. Another embodiment identifies () the hoistway landing doorway () as well as a letter to allow passengers to wait adjacent to the hoistway landing doorway of the car which will serve them.

Call indicator provided near elevator car currently assigned to the call

A method of assigning destination calls to cars (A-F) in an elevator system () having a plurality of hoistways (-) in which there is more than one car in each hoistway includes determining () the time for each car to respond to the call Among the cars with an acceptable response time, a determination is made regarding () the amount of additional delay in the hoistway that assignment of the call to one car will impose on the either car in the same hoistway. The call is assigned to that car which creates the least additional delay for cars in any hoistway.

Calls assigned to one of two cars in a hoistway to minimize delay imposed on either car

One of a plurality of cars () traveling in a hoistway () of an elevator system () may be diverted to the hoistway overhead () or pit () to enable another of the cars to gain access to a floor near or at a terminal floor (). When such car is at its last stop with doors open, visual () and audible () indicators present () messages to the effect that this is the last stop and passengers should exit. After car doors are closed (), visual and audible messages () relate to the car going to the pit or overhead and that passengers may push any button (to reopen doors). Thereafter, the car moves () to the overhead () or the pit () and presents () visual and audible messages to the effect that passengers did not exit at the correct floor and must wait while the other car makes a stop. Once the terminal floor is clear, the diverted car will run (-) to that floor, presenting () visual and audible messages to the effect that passengers should exit once the doors are open and reenter their service requests.

Communicating to elevator passengers re car movement to pit or overhead

Growing community of inventors

Seoul, South Korea

Cheong SikShin