Elevator system

Details Elevator system Elevator system

1974-04-24

1978-04-04

Schaefer, Robert K.

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

040821641

ABSTRACT:
A new and improved elevator system, and method of directing a plurality of elevator cars to serve floor calls in an elevator system. Service is provided for floor calls which cannot be allocated to a suitably conditioned car already busy serving calls, by specifically assigning non-busy or available cars to serve such calls. The floor calls are each timed from registration and when their registration time reaches a first value the strategy for assigning available cars to non-allocated calls is changed. The timing of a call continues following the reaching of the first value, until the call reaches a second timed value. The strategy for assigning available cars to non-allocated calls is changed again, in response to a call registered for the second predetermined period of time.

REFERENCES:
patent: 2840189 (1958-06-01), Santini et al.
patent: 3236332 (1966-02-01), Burgy et al.
patent: 3506094 (1970-04-01), Hall et al.
patent: 3589473 (1971-06-01), Kirsch et al.
patent: 3731765 (1973-05-01), Robaszkiewicz
patent: 3739880 (1973-06-01), Robaszkiewicz
patent: 3743057 (1973-07-01), Hall et al.

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