(19)

(11)

EP 2 900 887 A1

(12)

(43) Date of publication: 05.08.2015 Bulletin 2015/32 (21) Application number: 13766527.9 (22) Date of filing: 25.09.2013

(51) International Patent Classification (IPC):  E04G 17/06(2006.01) (86) International application number: PCT/EP2013/069889 (87) International publication number: WO 2014/048937 (03.04.2014 Gazette 2014/14)

(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: 28.09.2012 DE 102012217823 (71) Applicant: Hünnebeck GmbH 40885 Ratingen (DE)	(72) Inventors: BERGER, Martin Kinnelon, NJ 07405 (US) KLEHR, Volker 41748 Viersen (DE) MANDOLLA, Mike 40885 Ratingen (DE) (74) Representative: Gille Hrabal  Brucknerstrasse 20 40593 Düsseldorf 40593 Düsseldorf (DE)