Elevator position apparatus

Details Elevator position apparatus Elevator position apparatus

1995-01-23

1997-01-14

Nappi, Robert

Elevator, industrial lift truck, or stationary lift for vehicle

With monitoring, signalling, and indicating means

Monitors operational parameter

187316, 187283, B66B 134

Patent

active

055942199

ABSTRACT:
An elevator position apparatus for determining if an elevator car is positioned within a door zone includes an encoded medium disposed vertically in an elevator hoistway, at least two door zone sensors for providing first and second door zone sensor signals in response to the encoded medium, at least two leveling sensors for providing up and down sensor signals in response to the encoded medium and means for determining if the elevator car is positioned within the door zone.

REFERENCES:
patent: 4362224 (1982-12-01), Fairbrother
patent: 4750592 (1988-06-01), Watt
patent: 4798267 (1989-01-01), Foster et al.
patent: 4977984 (1990-12-01), Arnosti et al.
Patent application 8/292,645 filed Aug. 18, 1994 by E. Jamieson, C. Pietrzykowski and J. Izard entitled system for Position Loss Recovery for an Elevator Car.
8/536727 Andreas Jaehn Sep 29, 1995.

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