Preventing elevator car calls behind car

Details Preventing elevator car calls behind car Preventing elevator car calls behind car

1981-02-13

1982-12-28

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 116

Patent

active

043656943

ABSTRACT:
A microprocessor cab controller for an elevator car processes signals to control car calls by means of routines which prevent car calls from being registered behind the advancing direction of the car unless the car is headed for the lobby without further demand or the car has no advance direction. Also disclosed are routines which respond to directives from a car controller mounted in the building to reset all car calls, reset selected car calls, reset the car call at a floor landing where the car is stopping, or force selected car calls; to inhibit car calls in a selected one of two zones of continuous floors for implementing dual up peak operation, and for selectively inhibiting registration of car calls at floors which are designated as cut off from service by the car.

REFERENCES:
patent: 3417842 (1968-12-01), Kuzara et al.
patent: 3528528 (1970-09-01), Carruthers
patent: 4191277 (1980-03-01), Meyer et al.

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