(19)

(11)

EP 1 546 483 A1

(12)

(43) Date of publication: 29.06.2005 Bulletin 2005/26 (21) Application number: 03762917.7 (22) Date of filing: 03.07.2003

(51) International Patent Classification (IPC)7: E04C 2/16 (86) International application number: PCT/NL2003/000488 (87) International publication number: WO 2004/005643 (15.01.2004 Gazette 2004/03)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 03.07.2002 NL 1020982 (71) Applicant: Van Elten, Gerrit Jan NL-3781 TC Voorthuizen (NL)	(72) Inventor: Van Elten, Gerrit Jan NL-3781 TC Voorthuizen (NL) (74) Representative: Kupecz, Arpad  Octrooibureau Los en Stigter B.V.Postbox 20052 1000 HB Amsterdam 1000 HB Amsterdam (NL)