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Disconnectable turret mooring system with a rotatable turn table

  • US 8,397,655 B2
  • Filed: 05/19/2009
  • Issued: 03/19/2013
  • Est. Priority Date: 05/19/2008
  • Status: Active Grant
First Claim
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1. Vessel (14) comprising a hull (3), a shaft (2) extending from an upper part (40) of the hull to a bottom (41) of the hull, a turret (1) being rotatably supported in the shaft via a turret bearing (4,5), a manifold support structure (31) carrying one or more conduits being rotatably supported on the turret via a manifold bearing (32), the turret comprising (1) a cavity (42) for receiving a mooring buoy (11) carrying one or more risers (12) and one or more vertically displaceable actuation members (33) near the manifold bearing (32) for vertically displacing the manifold support structure (31) relative to the turret (1) between a rotational position in which the manifold support structure (31) can rotate relative to the turret via the manifold bearing (32) and a locked position in which the bearing support structure (31) is rotationally locked relative to the turret.

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