Elevator system

Details Elevator system Elevator system

1985-06-10

1987-01-27

Shoop, Jr., William M.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

B66B 122

Patent

active

046388893

ABSTRACT:
An elevator system, and method of operating same, having a plurality of elevator cars for serving hall calls registered from the floors of a building. All of the up and down service directions from the floors are continuously assigned to the elevator cars, whether or not they have an active registered hall call associated therewith, with the assignments being made according to predetermined averages which uniformly spread the actual and prospective work loads among the elevator cars. The hall calls are timed. A timed-out call, i.e., a call registered for a predetermined period of time, is given preferential treatment, without significantly disturbing service to other registered hall calls, by assigning the floor and service direction associated with the timed-out call to an additional car which is not already assigned to a timed-out call. The additional car is selected on the basis of its having the lightest work load schedule of all of the elevator cars conditioned to serve the timed-out call.

REFERENCES:
patent: 4037688 (1977-07-01), Winkler
patent: 4046227 (1977-09-01), Kirsch et al.
patent: 4082164 (1978-04-01), Sackin et al.
patent: 4448286 (1984-05-01), Kuzunuki et al.

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