(19)

(11)

EP 1 706 557 A1

(12)

(43) Date of publication: 04.10.2006 Bulletin 2006/40 (21) Application number: 04803065.4 (22) Date of filing: 23.12.2004

(51) International Patent Classification (IPC):  E04D 13/03(2006.01) (86) International application number: PCT/DK2004/000915 (87) International publication number: WO 2005/064098 (14.07.2005 Gazette 2005/28)

(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 MC NL PL PT RO SE SI SK TR (30) Priority: 30.12.2003 EP 03388091 (71) Applicant: VKR Holding A/S 2860 Søborg (DK)	(72) Inventor: KRISTENSEN, Jens, Troels, Plesner DK-8751 Gedved (DK) (74) Representative: Carlsson, Eva  Internationalt Patent-Bureau A/S Rigensgade 11 1316 Copenhagen K 1316 Copenhagen K (DK)