ELEVATOR SYSTEM WITH SELF-PROPELLED AUTONOMOUS CAB
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United States of America Patent
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Issued Date -
Dec 1, 2022
app pub date -
Oct 24, 2020
filing date -
Oct 24, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
An elevator system wherein a cab is moved within a shaft by a tractive drive system that transmits torque frictional force on the interior surface of the shaft, enabling the cab to travel without cables and travel for long distances. The tractive drive system automatically regulates these normal forces. A method of controlling a plurality of these cabs disposed within a plurality of shafts by means of electronic systems.
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