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:
Sep. 20, 2005
Filed:
May. 08, 2002
Applicants:
Arne Smedal, Færvik, NO;
Kåre Syvertsen, Tveit, NO;
Inventors:
Arne Smedal, Færvik, NO;
Kåre Syvertsen, Tveit, NO;
Assignee:
Sevan Marine AS, Tananger, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D029/00 ; B63B035/44 ;
U.S. Cl.
CPC ...
Abstract
Platform for drilling after or production of hydrocarbons at sea, consisting of a semi-submersible platform body which supports drilling and/or production equipment on its upper surface. The platform body is designed as a vertical mainly flat bottomed cylinder which is provided with at least one peripheral circular cut-out in the lower section of the cylinder since the centre of buoyancy for the submerged section of the platform is positioned lower than the centre of gravity of the platform.