(19)

(11)

EP 1 576 437 A1

(12)

(43) Date of publication: 21.09.2005 Bulletin 2005/38 (21) Application number: 03781106.4 (22) Date of filing: 12.12.2003

(51) International Patent Classification (IPC)7: G05F 1/38 (86) International application number: PCT/NO2003/000417 (87) International publication number: WO 2004/053615 (24.06.2004 Gazette 2004/26)

(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 SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 12.12.2002 NO 20025990 16.12.2002 US 433601 P (71) Applicant: MAGTECH AS 1502 Moss (NO)	(72) Inventors: STRAND, Frank N-1511 MOSS (NO) HAUGS, Espen N-1591 SPERREBOTN (NO) THELDHORN, Reidar N-0658 Oslo (NO) (74) Representative: HOFFMANN EITLE  Patent- und Rechtsanwälte Arabellastrasse 4 D-81925 München D-81925 München (DE)