(19)

(11)

EP 1 977 155 A1

(12)

(43) Date of publication: 08.10.2008 Bulletin 2008/41 (21) Application number: 05822714.1 (22) Date of filing: 01.12.2005

(51) International Patent Classification (IPC):  F17C 13/00(2006.01) (86) International application number: PCT/NO2005/000446 (87) International publication number: WO 2007/064212 (07.06.2007 Gazette 2007/23)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (71) Applicant: Det Norske Veritas AS 1322 Hovik (NO)	(72) Inventors: BERGAN, Pål G. N-1397 NESØYA (NO) BAKKEN, Kåre N-3474 ÅROS (NO) (74) Representative: Onsagers Ltd  c/o Innovation Norway 5 Lower Regent Street London SW1Y 4LR London SW1Y 4LR (GB)