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(11)

EP 3 542 001 A1

(12)

(43) Date of publication: 25.09.2019 Bulletin 2019/39 (21) Application number: 17872546.1 (22) Date of filing: 15.11.2017

(51) International Patent Classification (IPC):  E03C 1/12(2006.01) F16K 17/02(2006.01) E03C 1/28(2006.01) (86) International application number: PCT/SE2017/051134 (87) International publication number: WO 2018/093321 (24.05.2018 Gazette 2018/21)

(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 Designated Validation States: MA MD (30) Priority: 15.11.2016 SE 1600325 23.01.2017 SE 1750054 (71) Applicant: Aktiebolaget Durgo 169 03 Solna (SE)	(72) Inventor: HANSSON, Hans Oliver 177 61 Järfälla (SE) (74) Representative: Zacco Sweden AB  P.O. Box 5581 114 85 Stockholm 114 85 Stockholm (SE)