(19)

(11)

EP 1 604 046 A1

(12)

(43) Date of publication: 14.12.2005 Bulletin 2005/50 (21) Application number: 04710134.0 (22) Date of filing: 11.02.2004

(51) International Patent Classification (IPC)7: C22B 9/04 (86) International application number: PCT/NO2004/000040 (87) International publication number: WO 2004/076699 (10.09.2004 Gazette 2004/37)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 25.02.2003 NO 20030887 (71) Applicant: Ingenior Karl Venas AS 7078 Saupstad (NO)	(72) Inventor: VENAAS, Karl N-7078 Saupstad (NO) (74) Representative: Khan, Mohammed Saiful Azam  Eric Potter Clarkson Park View House 58 The Ropewalk Nottingham, NG1 5DD Nottingham, NG1 5DD (GB)