(19)

(11)

EP 2 831 352 A1

(12)

(43) Date of publication: 04.02.2015 Bulletin 2015/06 (21) Application number: 13711140.7 (22) Date of filing: 05.03.2013

(51) International Patent Classification (IPC):  E04G 5/04(2006.01) (86) International application number: PCT/NL2013/050141 (87) International publication number: WO 2013/147591 (03.10.2013 Gazette 2013/40)

(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 Designated Extension States: BA ME (30) Priority: 27.03.2012 NL 2008545 (71) Applicant: Maes T.G.S. V.O.F. 8407 ED Terwispel (NL)	(72) Inventor: VOORNHOUT, George NL-9744 AH Groningen (NL) (74) Representative: Verhees, Godefridus Josephus Maria  Brabants Octrooibureau De Pinckart 54 5674 CC Nuenen 5674 CC Nuenen (NL)