(19)

(11)

EP 3 446 491 A1

(12)

(43) Date of publication: 27.02.2019 Bulletin 2019/09 (21) Application number: 17786225.7 (22) Date of filing: 20.04.2017

(51) International Patent Classification (IPC):  H04R 1/02(2006.01) H04R 1/20(2006.01) (86) International application number: PCT/NO2017/050099 (87) International publication number: WO 2017/183995 (26.10.2017 Gazette 2017/43)

(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: 20.04.2016 NO 20160657 (71) Applicant: Owl Industries AS 0452 Oslo (NO)	(72) Inventor: WARP, Øyvind 0452 Oslo (NO) (74) Representative: Bryn Aarflot AS  Patent Stortingsgata 8 0161 Oslo 0161 Oslo (NO)