OFFSHORE LIFTING OPERATIONS
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United States of America Patent
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Issued Date -
Oct 20, 2011
app pub date -
Oct 22, 2009
filing date -
Oct 22, 2008
priority date (Note) -
Abandoned
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Abstract
An offshore, deep-water crane including a support structure, a lifting arm secured to the support structure and extending therefrom, and at least one lifting rope extending from the support structure towards an end of the lifting arm remote from the support structure is disclosed. The lifting rope has a specific gravity less than 3 and a traction winch for moving the at least one lifting rope from the support structure along the arm and vice versa.
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