(19)

(11)

EP 1 625 303 A1

(12)

(43) Date of publication: 15.02.2006 Bulletin 2006/07 (21) Application number: 04739239.4 (22) Date of filing: 18.05.2004

(51) International Patent Classification (IPC):  F04B 49/06(1968.09) (86) International application number: PCT/EP2004/005337 (87) International publication number: WO 2004/104418 (02.12.2004 Gazette 2004/49)

(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: 21.05.2003 DE 10322868 (71) Applicant: ECOLAB INC. St. Paul, MN 55102-1390 (US)	(72) Inventors: RUTZ, Klaus 83377 Vachendorf (DE) HABERLANDER, Albert 83278 Traunstein (DE) (74) Representative: Gesthuysen, von Rohr & Eggert  Patentanwälte Huyssenallee 100 45128 Essen 45128 Essen (DE)