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:
Nov. 03, 1998
Filed:
Nov. 01, 1996
Edward Pieter Heerema, Chatel-St. Denis, CH;
Allseas Group S. A., , CH;
Abstract
A method for removing a superstructure from a jacket placed on a sea-bottom, wherein a vessel is positioned in the vicinity of the jacket. In this operation, the problem of the superstructure colliding with the jacket during lifting thereof due to up and down movement caused by the vessel floating on the waves is real and present. The superstructure and/or the jacket can sustain damage. To avoid such damage, the superstructure is engaged by lift supports which are movable relative to the vessel. Once the movement of the vessel in the waves is detected, lifting of the superstructure from the jacket is started when it is detected that the vessel is situated below it's average depth level in the sea.