(19)

(11)

EP 1 015 202 A1

(12)

(43) Date of publication: 05.07.2000 Bulletin 2000/27 (21) Application number: 98902313.0 (22) Date of filing: 03.02.1998

(51) International Patent Classification (IPC)7: B28B 3/22 (86) International application number: PCT/NO9800/038 (87) International publication number: WO 9835/801 (20.08.1998 Gazette 1998/33)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 03.02.1997 NO 970478 (71) Applicant: Addtek Research & Development Oy Ab 03101 Nummela (FI)	(72) Inventor: THORESEN, Björn 3500 Hönefoss (NO) (74) Representative: Leale, Robin George  Frank B. Dehn & Co.,European Patent Attorneys,179 Queen Victoria Street London EC4V 4EL London EC4V 4EL (GB)