(19)

(11)

EP 0 874 780 A1

(12)

(43) Date of publication: 04.11.1998 Bulletin 1998/45 (21) Application number: 96942710.0 (22) Date of filing: 13.12.1996

(51) International Patent Classification (IPC):  B66C 23/ 20( . ) B66D 3/ 20( . ) (86) International application number: PCT/SE1996/001659 (87) International publication number: WO 1997/021622 (19.06.1997 Gazette 1997/26)

(84) Designated Contracting States: CH DE DK FR GB LI NL SE (30) Priority: 14.12.1995 SE 19950004482 (71) Applicant: Protema AB 192 08 Sollentuna (SE)	(72) Inventor: JANSSON, Claes-Hakan S-761 92 Norrtälje (SE) (74) Representative: Bjelkstam, Peter, et al  Kransell & Wennborg AB Box 27834 115 93 Stockholm 115 93 Stockholm (SE)