Elevator – industrial lift truck – or stationary lift for vehicle – With monitoring – signalling – and indicating means
Patent
1994-02-28
1996-09-03
Nappi, Robert
Elevator, industrial lift truck, or stationary lift for vehicle
With monitoring, signalling, and indicating means
187247, 371 206, 34082505, B66B 300
Patent
active
055515320
ABSTRACT:
In a two-way ring elevator communications system, characterized in that a controller is associated with each elevator to process inter-elevator messages and the controllers of the elevators are linked together in serial fashion on a two-way communications system so that the messages of each controller are passed along to and processed by each of the other controllers in two directions on two independent rings, whichever of the two rings is properly functioning is used at full capacity but if neither ring is properly functioning then both rings are operated at reduced capacity, the reduction being carried out by reducing the time between reassignments of elevator hall calls.
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patent: 4363381 (1982-12-01), Bittar
patent: 4596982 (1986-06-01), Bahr et al.
patent: 4815568 (1989-03-01), Bittar
patent: 5081452 (1992-01-01), Cozic
patent: 5084863 (1992-01-01), Guezou et al.
patent: 5200949 (1993-04-01), Kobayashi
patent: 5202540 (1993-04-01), Auer et al.
patent: 5272287 (1993-12-01), Meguerdichian et al.
Nappi Robert
Otis Elevator Company
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