(19)

(11)

EP 3 380 731 A1

(12)

(43) Date of publication: 03.10.2018 Bulletin 2018/40 (21) Application number: 16855854.2 (22) Date of filing: 17.10.2016

(51) International Patent Classification (IPC):  F04B 45/04(2006.01) F04B 43/02(2006.01) F04B 27/053(2006.01) (86) International application number: PCT/SE2016/051002 (87) International publication number: WO 2017/065685 (20.04.2017 Gazette 2017/16)

(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: 15.10.2015 SE 1551338 (71) Applicant: Provtagaren AB 281 24 Hässleholm (SE)	(72) Inventors: OTTOSEN, Daniel 226 51 Lund (SE) SKARPING, Gunnar 281 38 Hässleholm (SE) DALENE, Marianne 281 38 Hässleholm (SE) (74) Representative: AWA Sweden AB  P.O. Box 5117 200 71 Malmö 200 71 Malmö (SE)