Patent · US Active

Weak link for a riser system

US9322225B2 · kind B2 · utility

3Cited by

6References

23Claims

0Family size

Assignee

Aker Subsea AS · NO

Inventors

Knut Møgedal · Asker, NO
Kristian Guttulsrud · Asker, NO
David W. Brown · Bingen, US
Jonas Åkerlund · Halmstad, SE

Key dates

Filing date	Nov 19, 2013
Grant date	Apr 26, 2016
Priority date	—
Expiry date	Nov 19, 2033

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B17/01
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A weak link (17, 43) for a riser system comprising a pin (2, 25) and a box (1, 24), bolts (11, 34) for releasably connecting the pin (2, 25) and the box (1, 24), the bolts being designed to break at a predefined tension. The link further comprising a pressure balancing mechanism for balancing axial forces acting on the bolts (11, 34) due to end cap effect. The weak link also comprises a strong mode mechanism and a dampening mechanism.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.