(19)

(11)

EP 2 616 728 A1

(12)

(43) Date of publication: 24.07.2013 Bulletin 2013/30 (21) Application number: 11754423.9 (22) Date of filing: 10.09.2011

(51) International Patent Classification (IPC):  F16K 31/383(2006.01) (86) International application number: PCT/EP2011/065699 (87) International publication number: WO 2012/034953 (22.03.2012 Gazette 2012/12)

(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: 13.09.2010 US 382308 P (71) Applicant: Norgren GmbH 46519 Alpen (DE)	(72) Inventors: STUDER, Roger CH-8362 Thurgau (CH) GELFERT, Sebastian 71672 Baden Wurttemberg (DE) (74) Representative: Hartwell, Ian Peter  Ollila Law Limited Unit 5, The Courtyard, Wixford Park Bidford on Avon, Warwickshire B50 4JS Warwickshire B50 4JS (GB)