Arrangement and method to move at least two elevator cars independently in at least one hoistway
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United States of America Patent
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Sep 12, 2017
Grant Date -
Jun 2, 2016
app pub date -
Dec 2, 2014
filing date -
Dec 2, 2014
priority date (Note) -
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Abstract
An elevator arrangement includes two or more hoistways, at least one more elevator car than a total number of hoistways, and at least one more belt system than the total number of hoistways. At least one belt system may be provided between each pair of hoistways. At least one elevator car may be provided in each hoistway. Each elevator car may be connected to at least one belt system. The belt systems may provide a direct transfer of mechanical energy between the elevator cars. As a first elevator car moves downward in a first hoistway, mechanical energy may be generated via the belt systems to lift a second elevator car upwardly in a second hoistway.
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