(19)

(11)

EP 0 907 808 A1

(12)

(43) Date of publication: 14.04.1999 Bulletin 1999/15 (21) Application number: 97928594.0 (22) Date of filing: 17.06.1997

(51) International Patent Classification (IPC):  E04D 5/ 12( . ) (86) International application number: PCT/SE1997/001062 (87) International publication number: WO 1997/049878 (31.12.1997 Gazette 1998/05)

(84) Designated Contracting States: AT BE DK FI GB IE NL SE Designated Extension States: LT LV (30) Priority: 26.06.1996 SE 19960002520 (71) Applicant: Trelleborg Building Systems AB 263 21 Höganäs (SE)	(72) Inventor: HÄLLEWALL, Niclas S-222 23 Lund (SE) (74) Representative: Lundin, Björn-Eric  Trelleborg AB Patents and Trade Marks Box 21024 100 31 Stockholm 100 31 Stockholm (SE)