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:
Dec. 23, 2008
Filed:
Nov. 14, 1997
Applicants:
Donald Wayne Allen, Katy, TX (US);
Dean Leroy Henning, Needville, TX (US);
Inventors:
Donald Wayne Allen, Katy, TX (US);
Dean Leroy Henning, Needville, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63B 35/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spar structure is disclosed for offshore hydrocarbon recovery operations having a vertically oriented elongated floating hull with a buoyant upper section, a ballasted lower section, and a truss member separating the floating hull from the lower ballasted section. A anchoring system connects the hull to the ocean floor and a vertically oriented fairing shaped profile section is presented on the hull.