(19)

(11)

EP 1 337 454 A1

(12)

(43) Date of publication: 27.08.2003 Bulletin 2003/35 (21) Application number: 01981232.0 (22) Date of filing: 26.10.2001

(51) International Patent Classification (IPC)7: B66C 13/46 (86) International application number: PCT/SE0102/375 (87) International publication number: WO 0203/4663 (02.05.2002 Gazette 2002/18)

(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: 27.10.2000 US 243408 P (71) Applicant: ABB AB 721 83 Västeras (SE)	(72) Inventors: HEIDENBACK, Claes S-724 61 Västeras (SE) JOHANSSON, Christer S-724 61 Västeras (SE) (74) Representative: Dahlstrand, Björn et al ABB Group Services Center ABLegal & Compliance/Intellectual Property 721 78 Västeras 721 78 Västeras (SE)