(19)

(11)

EP 4 256 239 A1

(12)

(43) Date of publication: 11.10.2023 Bulletin 2023/41 (21) Application number: 20967149.4 (22) Date of filing: 21.12.2020

(51) International Patent Classification (IPC):  F24C 15/20(2006.01) (52) Cooperative Patent Classification (CPC): F24C 15/2071 (86) International application number: PCT/TR2020/051145 (87) International publication number: WO 2022/139696 (30.06.2022 Gazette 2022/26)

(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 (71) Applicant: Femas Metal San. Ve Tic. A.S. 38070 Melikgazi/Kayseri (TR)	(72) Inventors: GULBEY, Ozan 38070 Melikgazi/Kayseri (TR) KOC, Ugur 38070 Melikgazi/Kayseri (TR) COSKUN, Resat 38070 Melikgazi/Kayseri (TR) CANDAN, Samet 38070 Melikgazi/Kayseri (TR)