(19)

(11)

EP 2 822 744 A2

(12)

(88) Date of publication A3: 12.12.2013 (43) Date of publication: 14.01.2015 Bulletin 2015/03 (21) Application number: 13715118.9 (22) Date of filing: 05.03.2013

(51) International Patent Classification (IPC):  B28C 9/04(2006.01) E01C 19/47(2006.01) B01F 13/00(2006.01) (86) International application number: PCT/BE2013/000012 (87) International publication number: WO 2013/131152 (12.09.2013 Gazette 2013/37)

(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: 05.03.2012 BE 201200141 (71) Applicant: ETS. Gygro N.V. 3803 St.-Truiden (BE)	(72) Inventor: KEMPENEERS, Guy B-3803 St.-Truiden (BE) (74) Representative: Callewaert, Koen  Bureau Callewaert b.v.b.a. Brusselsesteenweg 108 3090 Overijse 3090 Overijse (BE)