Spar with detachable hull structure

Details Spar with detachable hull structure Spar with detachable hull structure

2008-12-22

2010-12-07

Avila, Stephen (Department: 3617)

Buoys, rafts, and aquatic devices

Buoy

For mooring a vessel

C114S230200

Reexamination Certificate

active

07845998

ABSTRACT:
A spar-type offshore platform includes a buoyant upper hull structure having a lower end to which is detachably connected a buoyant lower module. A plurality of mooring line assemblies is connected to the lower module, the total weight of the mooring line assemblies being sufficient to sink the lower module. A method of separating the upper hull structure from the lower module includes disconnecting the lower module from the lower end of the upper hull structure, and then allowing the weight of the mooring line assemblies to sink the lower module.

REFERENCES:
patent: 5941746 (1999-08-01), Isnard et al.
patent: 7197999 (2007-04-01), Murray
patent: 2003/0031517 (2003-02-01), Wetch
patent: 2006/0177273 (2006-08-01), Bonnemaire et al.
patent: 2008/0311804 (2008-12-01), Bauduin et al.
patent: WO2007/108705 (2007-09-01), None
International Search Report on corresponding PCT application (PCT/US2008/088042) from International Searching Authority (EPO) dated Oct. 6, 2009.
Written Opinion on corresponding PCT application (PCT/US2008/088042) from International Searching Authority (EPO) dated Oct. 6, 2009.

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