(19)

(11)

EP 2 401 501 A1

(12)

(43) Date of publication: 04.01.2012 Bulletin 2012/01 (21) Application number: 10746507.2 (22) Date of filing: 16.02.2010

(51) International Patent Classification (IPC):  F04B 43/067(2006.01) A01J 11/16(2006.01) (86) International application number: PCT/SE2010/000034 (87) International publication number: WO 2010/098707 (02.09.2010 Gazette 2010/35)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 24.02.2009 SE 0900233 (71) Applicant: Tetra Laval Holdings & Finance S.A. 1009 Pully (CH)	(72) Inventors: JOHANSSON, Claes-Göran S-246 43 Löddeköpinge (SE) WENDESTAM, Nils S-225 91 Lund (SE) (74) Representative: Tetra Pak - Patent Attorneys SE  C/o AB Tetra Pak Legal Affairs - D&E Ruben Rausings gata 221 86 Lund 221 86 Lund (SE)