(19)

(11)

EP 0 208 760 A1

(12)

(43) Date of publication: 21.01.1987 Bulletin 1987/04 (21) Application number: 86900861.0 (22) Date of filing: 16.01.1986

(51) International Patent Classification (IPC):  E04D 5/ 12( . ) E04D 5/ 14( . ) (86) International application number: PCT/NO1986/000004 (87) International publication number: WO 1986/004375 (31.07.1986 Gazette 1986/17)

(84) Designated Contracting States: BE CH DE LI SE (30) Priority: 17.01.1985 NO 19850000209 (71) Applicant: PROTAN A/S N-3000 Drammen (NO)	(72) Inventor: LIEN, Peder N-3540 Nesbyen (NO) (74) Representative: Sasse, Volker, Dipl.-Ing.  Parreutstrasse 27 D-85049 Ingolstadt D-85049 Ingolstadt (DE)