(19)

(11)

EP 0 575 457 A1

(12)

(43) Date of publication: 29.12.1993 Bulletin 1993/52 (21) Application number: 92907191.0 (22) Date of filing: 11.03.1992

(51) International Patent Classification (IPC):  E02D 29/ 16( . ) E04B 1/ 68( . ) (86) International application number: PCT/NO1992/000044 (87) International publication number: WO 1992/016696 (01.10.1992 Gazette 1992/25)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE (30) Priority: 19.03.1991 NO 19910001086 (71) Applicant: SEM, Bjarne N-0260 Oslo (NO)	(72) Inventor: SEM, Bjarne N-0260 Oslo (NO) (74) Representative: Reinhard - Skuhra - Weise & Partner  Postfach 44 01 51 D-80750 München D-80750 München (DE)