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EP 2 943 713 A1

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(43) Date of publication: 18.11.2015 Bulletin 2015/47 (21) Application number: 14700848.6 (22) Date of filing: 14.01.2014

(51) International Patent Classification (IPC):  F16L 39/00(2006.01) F16D 7/10(2006.01) F16L 39/06(2006.01) (86) International application number: PCT/EP2014/050602 (87) International publication number: WO 2014/108562 (17.07.2014 Gazette 2014/29)

(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: 14.01.2013 NL 1039998 (71) Applicant: Wavin B.V. 8011 CW Zwolle (NL)	(72) Inventors: BESTEN, Marco W.J. NL 8147 RE Giethmen (NL) ROELFSEMA, Marcel NL 9503 RH Stadskanaal (NL) VAN DIJK, Berend-Jan NL 7777 ST Schuinesloot (NL) KANTERS, Arno F.C. NL 7701 XM Dedemsvaart (NL) ARENDSEN, Sander A.H. NL 7591 VT Denekamp (NL) (74) Representative: Hoffmann Eitle  Patent- und Rechtsanwälte PartmbB Arabellastraße 30 81925 München 81925 München (DE)