The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2007
Filed:
Oct. 07, 2004
Applicants:
Aziz Merchant, Signapore, SG;
Anis Hussain, Singapore, SG;
Inventors:
Aziz Merchant, Signapore, SG;
Anis Hussain, Singapore, SG;
Assignee:
Deepwater Technology Group Pte. Ltd, Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63B 35/44 (2006.01); B63B 21/50 (2006.01);
U.S. Cl.
CPC ...
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.