(19)

(11)

EP 1 332 287 A1

(12)

(43) Date of publication: 06.08.2003 Bulletin 2003/32 (21) Application number: 01979202.7 (22) Date of filing: 01.11.2001

(51) International Patent Classification (IPC)7: F04B 7/06 (86) International application number: PCT/SE0102/400 (87) International publication number: WO 0203/8957 (16.05.2002 Gazette 2002/20)

(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: 08.11.2000 SE 0004085 (71) Applicant: Octapump AB 752 75 Uppsala (SE)	(72) Inventor: WAHLBERG, Andreas S-756 45 Uppsala (SE) (74) Representative: Sundström, Per Olof et al Stenhagen Patentbyra ABP.O. Box 4630 116 91 Stockholm 116 91 Stockholm (SE)