Elevator system

Details Elevator system Elevator system

1983-09-20

1985-04-16

Truhe, J. V.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

B66B 502

Patent

active

045110174

ABSTRACT:
An elevator system, and method of operating same, in which emergency back-up service is provided all floors of a building when normal service is degraded, such as due to a dispatcher malfunction, a communication failure between the elevator cars of a bank of cars and a group supervisory controller or dispatcher, failure of the hall call circuits, and the like. When the emergency service is provided, a different initial block of floors is assigned to each elevator car, and as each elevator car completes a round trip its block of assignments are revised in a rotational manner. Thus, all floors are guaranteed service as long as at least one elevator car is operational.

REFERENCES:
patent: 2795296 (1957-06-01), Suozzo
patent: 4037688 (1977-07-01), Winkler
patent: 4046227 (1977-09-01), Kirsch et al.
patent: 4046228 (1977-09-01), Powell
patent: 4162719 (1979-07-01), Husson et al.
patent: 4379499 (1983-04-01), Nowak
patent: 4463834 (1984-08-01), Polis et al.

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