Absolute position reference system for an elevator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 20, 2002
Grant Date -
Aug 8, 2002
app pub date -
Dec 11, 2000
filing date -
Dec 11, 2000
priority date (Note) -
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status (Latency Note)
Importance
Abstract
Apparatus for determining the position of an elevator car within a hoistway that includes a code rail containing optically readable indicia that is being mounted within the hoistway adjacent to the path of travel of the car. At least one camera is mounted upon the car for movement therewith for scanning the code rail indicia and providing data indicative of the car's position to the car controllers.
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