(19)

(11)

EP 2 200 894 A2

(12)

(88) Date of publication A3: 03.09.2009 (43) Date of publication: 30.06.2010 Bulletin 2010/26 (21) Application number: 08840978.4 (22) Date of filing: 27.10.2008

(51) International Patent Classification (IPC):  B63B 21/26(2006.01) B63B 21/38(2006.01) B63B 21/24(2006.01) (86) International application number: PCT/US2008/081323 (87) International publication number: WO 2009/055789 (30.04.2009 Gazette 2009/18)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 26.10.2007 US 982962 P (71) Applicant: Horton Deepwater Development Systems, Inc. Houston, TX 77084 (US)	(72) Inventor: HORTON, III, Edward E. Houston Texas 77057 (US) (74) Representative: Holmes, Matthew Peter et al Marks & Clerk LLP Sussex House 83-85 Mosley Street Manchester M2 3LG 83-85 Mosley Street Manchester M2 3LG (GB)