Mooring apparatus
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United States of America Patent
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Sep 23, 2008
Grant Date -
Sep 22, 2005
app pub date -
Sep 15, 2003
filing date -
Sep 18, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to apparatus for mooring a floating vessel in open sea, using a semi submersible floating dock. The apparatus is particularly suitable for tankers carrying liquid natural gas in cryogenic form which can be a dangerous substance to handle and hence offshore terminals are preferred. The apparatus comprises a semi-submersible floating dock (1) for receiving a vessel (10) and a single point mooring system (5), with a rigid arm (3) between the two. The dock (1) is pivotally connected to the arm (3). The single point mooring system (5) comprises a mooring buoy (17) secured to the seabed by a compliant anchoring system such as a number of catenary anchor legs (15). This allows vertical movement of the mooring buoy (17) but constrains the movement to a relatively small column of water.
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