(19)

(11)

EP 2 580 395 A1

(12)

(43) Date of publication: 17.04.2013 Bulletin 2013/16 (21) Application number: 11726202.2 (22) Date of filing: 11.06.2011

(51) International Patent Classification (IPC):  E02B 3/10(2006.01) (86) International application number: PCT/NL2011/000047 (87) International publication number: WO 2011/159146 (22.12.2011 Gazette 2011/51)

(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: 26.05.2011 NL 1038842 14.06.2010 NL 1038038 (71) Applicant: Rijlaarsdam, Cornelis Elizabeth 2481 LA Woudbrugge (NL)	(72) Inventor: Rijlaarsdam, Cornelis Elizabeth 2481 LA Woudbrugge (NL) (74) Representative: Ferguson, Alexander  Octrooibureau Ferguson BV P.O. Box 970 3800 AZ Amersfoort 3800 AZ Amersfoort (NL)