(19)

(11)

EP 4 507 829 A1

(12)

(43) Date of publication: 19.02.2025 Bulletin 2025/08 (21) Application number: 23788693.2 (22) Date of filing: 11.04.2023

(51) International Patent Classification (IPC):  B02C 17/18(2006.01) G01H 1/00(2006.01) B02C 25/00(2006.01) (52) Cooperative Patent Classification (CPC): G01H 1/00; B02C 25/00; B02C 17/04; B02C 17/1805 (86) International application number: PCT/SE2023/050332 (87) International publication number: WO 2023/200387 (19.10.2023 Gazette 2023/42)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 11.04.2022 WO PCT/SE2022/050362 09.10.2022 SE 2251180 (71) Applicant: S.P.M. Instrument AB 645 25 Strängnäs (SE)	(72) Inventor: SUNDSTRÖM, Tim 647 95 Åkers Styckebruk (SE) (74) Representative: Zacco Sweden AB  P.O. Box 5581 Löjtnantsgatan 21 114 85 Stockholm 114 85 Stockholm (SE)