(19)

(11)

EP 1 227 716 A1

(12)

(43) Date of publication: 07.08.2002 Bulletin 2002/32 (21) Application number: 00980167.1 (22) Date of filing: 08.11.2000

(51) International Patent Classification (IPC)7: A01J 5/08 // F16L3:237 (86) International application number: PCT/SE0002/186 (87) International publication number: WO 0133/947 (17.05.2001 Gazette 2001/20)

(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: 09.11.1999 SE 9904050 (71) Applicant: DeLaval Holding AB 147 21 Tumba (SE)	(72) Inventors: ABERG, Jerker S-117 28 Stockholm (SE) PETTERSON, Torbjörn S-646 32 Gnesta (SE) (74) Representative: Hammar, Ernst et al Albihns Stockholm AB,Box 5581 114 85 Stockholm 114 85 Stockholm (SE)