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:
Jul. 29, 1986
Filed:
Jun. 14, 1983
Applicant:
Inventors:
Goran Wilkman, Espoo, FI;
Torsten Heideman, Kauniainen, FI;
Assignee:
Oy Wartsila Ab, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02B / ; E02B / ; B63B / ;
U.S. Cl.
CPC ...
405211 ; 405217 ;
Abstract
An off-shore drilling platform or the like supported by support legs standing on the bottom of the sea is converted to withstand ice pressure occurring in ice filled waters by providing those portions of said drilling platform, which are to be protected against ice pressure, with protective structures below the platform. The drilling platform and/or the protective structures are then, when ice occurs, lowered along the support legs to a level where the protective structures partly extend below the surface of the ambient water.