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:
Jun. 29, 1999
Filed:
Feb. 21, 1997
Karel Karal, Oslo, NO;
Other;
Abstract
A suction anchor for mooring systems, especially from floating installations for offshore production of oil and gas. The anchor is made in the form of a hollow cylindrical body (2) that is open at both ends and is completely embedded in the seabed (1), i.e. it is surrounded by seabed mass on all sides. Such a deep siting of the anchor (2) results in several advantages. For instance, the anchor (2) will penetrate to a depth with presumably firmer masses. The danger of a split on the back of the anchor is also avoided. The anchor can be left behind after use, because it lies at an approved depth. The anchor is mounted by means of a top piece designed as an inverted beaker-shaped part provided with a vent hole so that the anchor can be suction penetrated. The top piece is recovered and used again for lowering other similar anchors. Advantageous embodiments/sitings of the anchor cable (5,7) connected to the anchor are also described.