(19)

(11)

EP 2 912 288 A1

(12)

(43) Date of publication: 02.09.2015 Bulletin 2015/36 (21) Application number: 13786373.4 (22) Date of filing: 22.10.2013

(51) International Patent Classification (IPC):  F01N 3/20(2006.01) F16K 7/07(2006.01) F16L 55/07(2006.01) (86) International application number: PCT/US2013/066036 (87) International publication number: WO 2014/066302 (01.05.2014 Gazette 2014/18)

(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: 25.10.2012 US 201261718422 P (71) Applicant: Hartmann Controls, Inc. Hartland, WI 53029 (US)	(72) Inventors: GUENTHER, Henry Elm Grove, WI 53122 (US) BLUMREITER, Mark Waukesha, WI 53186 (US) (74) Representative: Petraz, Gilberto Luigi et al GLP S.r.l. Viale Europa Unita, 171 33100 Udine Viale Europa Unita, 171 33100 Udine (IT)