(19)

(11)

EP 0 725 874 A1

(12)

(43) Date of publication: 14.08.1996 Bulletin 1996/33 (21) Application number: 94901078.0 (22) Date of filing: 18.11.1993

(51) International Patent Classification (IPC):  E04F 13/ 08( . ) (86) International application number: PCT/NO1993/000172 (87) International publication number: WO 1994/012743 (09.06.1994 Gazette 1994/13)

(84) Designated Contracting States: BE DE ES FR IT NL SE (30) Priority: 23.11.1992 NO 19920004498 (71) Applicant: PLAN & PROSJEKT AS N-2600 Lillehammer (NO)	(72) Inventor: THORSRUD, Arne N-2636 Oyer (NO) (74) Representative: Borchert, Uwe Rudolf, Dipl.-Ing., et al  Patentanwalt Puschmann & Borchert Patentanwälte European Patent Attorneys Postfach 10 12 31 80086 München 80086 München (DE)