B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
B66B 13/16 (2006.01) B66B 13/06 (2006.01) B66B 13/14 (2006.01)
Patent
CA 2601839
A freight elevator door installation including a plurality of vertically sliding landing doors and a vertically sliding car gate, each landing door and said gate being power driven by an associated electrically energized operator, serial communication slave hardware for each landing, and serial communication slave hardware on the car, a serial communication master arranged to receive and send control signals to and from both said landing and car slave hardware, a controller coupled with the serial communication master, a common pair of buss lines in the hoistway connecting each of the landing slaves to the master, the slave hardware for each landing being connected to sensors detecting the open and closed states and locked and unlocked states of the respective landing door and normal and deployed states of an unlocking device of the respective landing door, the slave hardware on the car being connected to sensors detecting the open and closed and locked and unlocked states of the gate and being coupled to the master by lines associated with a travel cable.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
The Peelle Company Ltd.
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