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(11)

EP 1 641 977 A1

(12)

(43) Date of publication: 05.04.2006 Bulletin 2006/14 (21) Application number: 04738062.1 (22) Date of filing: 05.07.2004

(51) International Patent Classification (IPC):  D21D 5/26(1968.09) (86) International application number: PCT/CH2004/000421 (87) International publication number: WO 2005/005716 (20.01.2005 Gazette 2005/03)

(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 PL PT RO SE SI SK TR (30) Priority: 09.07.2003 FI 20031045 18.08.2003 FI 20031164 (71) Applicant: SULZER PUMPEN AG 8401 Winterthur (CH)	(72) Inventor: KOSO, Arto FIN-48800 Karhula (FI) (74) Representative: Ehrsam, Christian  Sulzer Management AG Patentabteilung/0067 Zürcherstrasse 12 8401 Winterthur 8401 Winterthur (CH)