(19)

(11)

EP 1 838 421 A1

(12)

(43) Date of publication: 03.10.2007 Bulletin 2007/40 (21) Application number: 04781398.5 (22) Date of filing: 17.08.2004

(51) International Patent Classification (IPC):  B01D 61/00(2006.01) (86) International application number: PCT/US2004/026693 (87) International publication number: WO 2006/022719 (02.03.2006 Gazette 2006/09)

(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 (71) Applicant: Pipes, Anthony Irvine, CA 92612 (US)	(72) Inventor: Pipes, Anthony Irvine, CA 92612 (US) (74) Representative: Kohler Schmid Möbus  Patentanwälte Ruppmannstrasse 27 70565 Stuttgart 70565 Stuttgart (DE)