(19)

(11)

EP 4 240 597 A1

(12)

(43) Date of publication: 13.09.2023 Bulletin 2023/37 (21) Application number: 21889715.5 (22) Date of filing: 03.11.2021

(51) International Patent Classification (IPC):  B44D 3/16(2006.01) A47L 13/08(2006.01) (52) Cooperative Patent Classification (CPC): B44D 3/164 (86) International application number: PCT/SE2021/051099 (87) International publication number: WO 2022/098283 (12.05.2022 Gazette 2022/19)

(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: 07.11.2020 SE 2051297 (71) Applicant: Speedheater System AB 441 57 Alingsås (SE)	(72) Inventor: ERICSON, Birger 441 57 Alingsås (SE) (74) Representative: Westpatent AB  Almekärrsvägen 11 443 39 Lerum 443 39 Lerum (SE)