(19)

(11)

EP 0 832 332 A1

(12)

(43) Date of publication: 01.04.1998 Bulletin 1998/14 (21) Application number: 96900110.0 (22) Date of filing: 03.01.1996

(51) International Patent Classification (IPC):  B27N 3/ 04( . ) B28B 1/ 52( . ) B32B 5/ 26( . ) D04H 1/ 425( . ) D04H 1/ 58( . ) D04H 1/ 72( . ) E04B 1/ 76( . ) E04C 2/ 16( . ) E04F 21/ 08( . ) B27N 3/ 08( . ) B32B 5/ 02( . ) D04H 1/ 42( . ) D04H 1/ 542( . ) D04H 1/ 64( . ) E04B 1/ 74( . ) E04B 1/ 80( . ) E04C 2/ 26( . ) (86) International application number: PCT/FI1996/000006 (87) International publication number: WO 1996/021066 (11.07.1996 Gazette 1996/31)

(84) Designated Contracting States: AT CH DE DK ES FR GB IT LI NL PT SE (30) Priority: 03.01.1995 FI 19950000036 05.04.1995 FI 19950001624 (71) Applicant: Aislo Oy 94200 Kemi (FI)	(72) Inventors: SMOLANDER, Raimo FIN-94500 Lautiosaari (FI) PUIKKO, Paavo FIN-94200 Kemi (FI) (74) Representative: Antila, Harri Jukka Tapani, et al  Kolster Oy Ab, P.O. Box 148, Iso Roobertinkatu 23 00121 Helsinki 00121 Helsinki (FI)