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.

Date of Patent:
Aug. 16, 2016

Filed:

Oct. 29, 2015
Applicant:

Jurong Shipyard Pte Ltd., Singapore, SG;

Inventor:

Nicolaas Johannes Vandenworm, Houston, TX (US);

Assignee:

JURONG SHIPYARD PTE LTD., Singapore, SG;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B63B 35/44 (2006.01); B63B 3/14 (2006.01); B63B 39/03 (2006.01); B63B 3/48 (2006.01); B63B 3/38 (2006.01);
U.S. Cl.
CPC ...
B63B 35/4413 (2013.01); B63B 3/14 (2013.01); B63B 3/38 (2013.01); B63B 3/48 (2013.01); B63B 39/03 (2013.01); B63B 2003/147 (2013.01); B63B 2003/385 (2013.01); B63B 2035/448 (2013.01); B63B 2035/4473 (2013.01);
Abstract

A buoyant structure or floating driller having a hull, a planar keel, a lower frustoconical portion disposed above the planar keel with an inwardly sloping wall and an upper frustoconical portion connected to the lower frustoconical portion with an outwardly sloping wall forming a hull neck. The buoyant structure has a main deck and a moon pool, at least one external tank and a plurality of ballast compartments. The buoyant structure defines a low center of gravity, wherein the combination of the upper frustoconical portion and the lower frustoconical portion provide an inherent stability to the buoyant structure.


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