(19)

(11)

EP 3 465 022 A1

(12)

(43) Date of publication: 10.04.2019 Bulletin 2019/15 (21) Application number: 17727138.4 (22) Date of filing: 22.05.2017

(51) International Patent Classification (IPC):  F24F 13/02(2006.01) F16L 9/00(2006.01) F16L 59/14(2006.01) F16L 9/22(2006.01) (86) International application number: PCT/EP2017/062253 (87) International publication number: WO 2017/202761 (30.11.2017 Gazette 2017/48)

(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: 27.05.2016 EP 16290092 (71) Applicant: PROMAT SAS 78540 Vernouillet (FR)	(72) Inventor: VENKOV, Vesselin 78630 Orgeval (FR) (74) Representative: Vaeck, Elke  Etex Services NV Kuiermansstraat 1 1880 Kapelle-op-den-Bos 1880 Kapelle-op-den-Bos (BE)