Lifting systems
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United States of America Patent
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Sep 5, 2017
Grant Date -
Aug 18, 2016
app pub date -
Apr 25, 2016
filing date -
Mar 14, 2013
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Abstract
Various lifting systems are described that use one or more of the following features. A method for setting an adjustable height upper pulley on a tall structure; load transfer from a suspended load to a tall structure; fan-based stabilizer; stabilizer or horizontal load position control mechanism using a closed loop of cable and taction winch for a crane application; crane-based lifting system that uses a closed loop of lifting cable looped around a traction winch; and a stabilizer or horizontal load position control mechanism that does not need a closed loop of cable. Other embodiments are also described and claims. Other embodiments are also described and claimed.
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