(19)

(11)

EP 2 637 830 A1

(12)

(43) Date of publication: 18.09.2013 Bulletin 2013/38 (21) Application number: 11817425.9 (22) Date of filing: 08.11.2011

(51) International Patent Classification (IPC):  B28B 11/24(2006.01) E04G 21/06(2006.01) (86) International application number: PCT/NL2011/050765 (87) International publication number: WO 2012/081975 (21.06.2012 Gazette 2012/25)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 08.11.2010 NL 2005653 07.11.2011 NL 2007738 (71) Applicant: Van Hattum En Blankevoort BV 3447 GG Woerden (NL)	(72) Inventor: KRONEMEIJER, Jos NL-3447 GG Woerden (NL) (74) Representative: Assendelft, Jacobus H.W.  Keukenhofdreef 20 2161 AZ Lisse 2161 AZ Lisse (NL)