Elevator express priority service

Details Elevator express priority service Elevator express priority service

1981-02-13

1982-10-05

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 118

Patent

active

043524125

ABSTRACT:
Requests for elevator express priority service are assigned to a car committable to the floor of the request if possible, or otherwise to a car which can reach the floor of the request sooner than other available cars. Whenever there are requests for express priority service and no cars available to respond thereto, polling of floor landings in subsequent cycles to determine if there are requests which can be assigned is commenced at a floor landing next in sequence to the one for which an outstanding request was unassignable for lack of available cars, and the unassignable request is reset so as to provide an indication thereof to the requestor. Express priority service requests are reassigned whenever the assignment is outstanding for an impermissible time.

REFERENCES:
patent: 4147235 (1979-04-01), Henry et al.

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