ELEVATOR SYSTEM
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United States of America Patent
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Issued Date -
May 4, 2017
app pub date -
Mar 31, 2015
filing date -
Apr 8, 2014
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A lift system may include at least two cars that can be moved in a lift shaft, at least two drives each of which is configured to drive one of the cars for movement within the lift shaft, and a frame device. The at least two cars may be positioned within the frame device that is movable in the lift shaft. The at least two cars can be moved relative to one another within the frame device by way of their respective drives.
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