(19)

(11)

EP 2 560 864 A2

(12)

(88) Date of publication A3: 08.12.2011 (43) Date of publication: 27.02.2013 Bulletin 2013/09 (21) Application number: 11720607.8 (22) Date of filing: 19.04.2011

(51) International Patent Classification (IPC):  B63B 23/30(2006.01) (86) International application number: PCT/NO2011/000135 (87) International publication number: WO 2011/133047 (27.10.2011 Gazette 2011/43)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 19.04.2010 NO 20100561 (71) Applicant: Optimum Engineering AS 5006 Bergen (NO)	(72) Inventor: GRONGAN, Tom Willy NO-5151 Straumsgrend (NO) (74) Representative: Acapo AS  P.O. Box 1880 Nordnes NO-5817 Bergen NO-5817 Bergen (NO)