Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Aziz Merchant0
Anis Hussain0
Date of Patent
January 2, 2007
Patent Application Number
10960149
Date Filed
October 7, 2004
Patent Primary Examiner
Patent abstract
A semi-submersible vessel has a pair of vertically spaced pontoons with varied buoyancy. The lower pontoon is retained in a close vertical proximity to the upper pontoon when the vessel is in transit. The lower pontoon is ballasted at the deployment site, dropping the pontoon to a depth of about 32 meters below the first pontoon baseline. As a result, stability and motion characteristics of the vessel are significantly improved.
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