(19)

(11)

EP 1 941 109 A1

(12)

(43) Date of publication: 09.07.2008 Bulletin 2008/28 (21) Application number: 06733108.2 (22) Date of filing: 11.04.2006

(51) International Patent Classification (IPC):  E04B 2/54(2006.01) E04C 1/41(2006.01) E04B 2/42(2006.01) (86) International application number: PCT/NO2006/000133 (87) International publication number: WO 2006/110045 (19.10.2006 Gazette 2006/42)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 14.04.2005 NO 20051817 (71) Applicants: Lund, Svein 5600 Norheimsund (NO) Stene, Rolf Jorgen 5132 Nyborg (NO)	(72) Inventors: Lund, Svein 5600 Norheimsund (NO) Stene, Rolf Jorgen 5132 Nyborg (NO) (74) Representative: Norris, Timothy Sweyn et al Acapo AS Strandgatan 198 P.O. Box 1880 Nordnes 5817 Bergen 5817 Bergen (NO)