(19)

(11)

EP 3 286 826 A1

(12)

(43) Date of publication: 28.02.2018 Bulletin 2018/09 (21) Application number: 16732784.0 (22) Date of filing: 21.04.2016

(51) International Patent Classification (IPC):  H02M 1/14(2006.01) H02M 3/156(2006.01) H02J 3/38(2006.01) H02M 1/44(2007.01) H02M 7/5387(2007.01) H02M 1/12(2006.01) (86) International application number: PCT/PL2016/050014 (87) International publication number: WO 2016/171575 (27.10.2016 Gazette 2016/43)

(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: 24.04.2015 PL 41210415 (71) Applicant: Spirvent Sp. Z O. O. 64-600 Oborniki (PL)	(72) Inventor: LIS, Marcin PL-64-920 Pila (PL) (74) Representative: Witek, Rafal  WTS Patent Attorneys Witek, Sniezko & Partners ul. Rudolfa Weigla 12 53-114 Wroclaw 53-114 Wroclaw (PL)