(19)

(11)

EP 2 686 617 A2

(12)

(88) Date of publication A3: 29.11.2012 (43) Date of publication: 22.01.2014 Bulletin 2014/04 (21) Application number: 12711985.7 (22) Date of filing: 16.03.2012

(51) International Patent Classification (IPC):  F24J 2/04(2006.01) (86) International application number: PCT/NL2012/050167 (87) International publication number: WO 2012/125039 (20.09.2012 Gazette 2012/38)

(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: 16.03.2011 NL 2006403 (71) Applicant: Heering Kunststof Profielen B.V. 7701 SG Dedemsvaart (NL)	(72) Inventor: Janssen, Bob NL-7701 SG Dedemsvaart (NL) (74) Representative: van Essen, Peter Augustinus  Ellens & van Essen Agro Business Park 20 6708 PW Wageningen 6708 PW Wageningen (NL)