Patent · US Expired

Marine riser structural core connector

US4647254A · kind A · utility

25Cited by
5References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 18, 1985
Grant dateMar 3, 1987
Priority date
Expiry dateApr 18, 2005

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16L37/002
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A subsea connector system for connecting the lower end of a structural core of a marine riser to a base which has been preset on the marine bottom. The box member of the connector system forms an integral part of a tapered section which, in turn, forms the lower end of the riser. The connector system, in a preferred embodiment, incudes a self-contained source of hydraulic fluid under pressure which actuates the connector to a locked position upon command. The connector also includes a back-up means for remotely locking the connector and three separate means for remotely unlocking the connector.

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