Floating lifting device
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United States of America Patent
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Feb 27, 2007
Issued Date -
N/A
app pub date -
Jul 23, 2004
filing date -
Jan 25, 2002
priority date (Note) -
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Abstract
The invention relates to a floating lifting device, using two movable lifting structures (13, 14) which can be alternatively engaged with broaden support members (5, 6, 7) of a cable (4). The cable (4) is stored substantially without tension in the vessel (1), for instance on a drum or in a hawse-hole (10) in a looped configuration. Large loads (9) can be lowered and raised from the seabed at large water depths such as at 3000 m. Preferably, the cable is formed by neutral buoyancy material, such as synthetic cable.
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