(19)

(11)

EP 1 165 445 A1

(12)

(43) Date of publication: 02.01.2002 Bulletin 2002/01 (21) Application number: 00911924.9 (22) Date of filing: 24.02.2000

(51) International Patent Classification (IPC)7: C02F 1/76 (86) International application number: PCT/US0004/611 (87) International publication number: WO 0050/346 (31.08.2000 Gazette 2000/35)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 24.02.1999 US 121652 P (71) Applicant: Pall Corporation East Hills, NY 11548-1209 (US)	(72) Inventor: WACHINSKI, Anthony, M. Millneck, NY 11771 (US) (74) Representative: Knott, Stephen Gilbert et al MATHISEN, MACARA & CO. The Coach House 6-8 Swakeleys Road Ickenham Uxbridge UB10 8BZ Ickenham Uxbridge UB10 8BZ (GB)