Apparatus for determining the position of an elevator car

Elevator – industrial lift truck – or stationary lift for vehicle – With monitoring – signalling – and indicating means – Monitors operational parameter

Reexamination Certificate

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Reexamination Certificate

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06986409

ABSTRACT:
Apparatus for determining the position of an elevator car in an elevator shaft includes a resistance wire installed vertically in the elevator shaft, the wire having a first end supplied with an operating voltage and a second end supplied with a reference voltage; a voltage tap installed on the elevator car, the voltage tap having a contact which rides on the resistance wire between the ends; and a position sensing unit connected to the voltage tap by a measuring line.

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patent: 1 158 310 (2000-06-01), None
patent: 05039178 (1993-02-01), None

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