(19)

(11)

EP 1 404 432 A1

(12)

(43) Date of publication: 07.04.2004 Bulletin 2004/15 (21) Application number: 02748057.3 (22) Date of filing: 31.05.2002

(51) International Patent Classification (IPC)7: B01D 27/00, B01D 35/02, F04B 19/22, F04B 39/16 (86) International application number: PCT/US2002/021070 (87) International publication number: WO 2002/098535 (12.12.2002 Gazette 2002/50)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 05.06.2001 US 295992 P (71) Applicant: Graco Minnesota Inc. Minneapolis, MN 55413 (US)	(72) Inventors: WEINBERGER, Mark Mounds View, MN 55112 (US) SEBION, Michael Apple Valley, MN 55124 (US) (74) Representative: Sturt, Clifford Mark et al Miller Sturt Kenyon9 John Street London WC1N 2ES London WC1N 2ES (GB)