(19)

(11)

EP 1 401 742 A1

(12)

(43) Date of publication: 31.03.2004 Bulletin 2004/14 (21) Application number: 02733739.3 (22) Date of filing: 24.05.2002

(51) International Patent Classification (IPC)7: B65F 5/00 (86) International application number: PCT/SE2002/000993 (87) International publication number: WO 2002/102686 (27.12.2002 Gazette 2002/52)

(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: 20.06.2001 SE 0102249 (71) Applicant: Envac Centralsug AB 117 84 Stockholm (SE)	(72) Inventors: LIF, Erik S-191 49 Sollentuna (SE) JOHANSSON, Jan-Erik S-745 42 Enköping (SE) (74) Representative: Stenborg, Anders Vilhelm  Aros Patent AB,P.O. Box 1544 751 45 Uppsala 751 45 Uppsala (SE)