(19)

(11)

EP 3 638 956 A1

(12)

(43) Date of publication: 22.04.2020 Bulletin 2020/17 (21) Application number: 18817005.4 (22) Date of filing: 24.05.2018

(51) International Patent Classification (IPC):  F24C 15/20(2006.01) A61L 9/20(2006.01) (86) International application number: PCT/SE2018/050528 (87) International publication number: WO 2018/231119 (20.12.2018 Gazette 2018/51)

(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: KH MA MD TN (30) Priority: 16.06.2017 SE 1750769 (71) Applicant: Silver & Stal Enterprises AB 643 22 Vingåker (SE)	(72) Inventor: LEJONDAHL, Lars-Erik 120 71 Stockholm (SE) (74) Representative: Groth & Co. KB  P.O. Box 6107 102 32 Stockholm 102 32 Stockholm (SE)