(19)

(11)

EP 3 479 052 A1

(12)

(43) Date of publication: 08.05.2019 Bulletin 2019/19 (21) Application number: 17765091.8 (22) Date of filing: 18.08.2017

(51) International Patent Classification (IPC):  F42B 33/06(2006.01) (86) International application number: PCT/EP2017/070981 (87) International publication number: WO 2018/033643 (22.02.2018 Gazette 2018/08)

(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: 19.08.2016 DE 102016115468 (71) Applicant: Heinrich Hirdes GmbH 21079 Hamburg (DE)	(72) Inventor: KOELBEL, Jan 21079 Hamburg (DE) (74) Representative: Schmidt, Axel  Schmidt-ip Patentanwaltskanzlei St. Emmeram-Strasse 30 85609 Aschheim St. Emmeram-Strasse 30 85609 Aschheim (DE)