(19)

(11)

EP 4 437 279 A1

(12)

(43) Date of publication: 02.10.2024 Bulletin 2024/40 (21) Application number: 22838920.1 (22) Date of filing: 20.12.2022

(51) International Patent Classification (IPC):  F24D 3/10(2006.01) F24D 19/00(2006.01) (52) Cooperative Patent Classification (CPC): F24D 3/1083; F24D 19/0092; F24D 2220/0271; F24D 2220/0228 (86) International application number: PCT/GB2022/053303 (87) International publication number: WO 2023/118838 (29.06.2023 Gazette 2023/26)

(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 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: 22.12.2021 GB 202118811 (71) Applicant: Intaco Limited Hixon Staffordshire ST18 0PF (GB)	(72) Inventor: BLAIRS, Stuart Hixon Staffordshire ST18 0PF (GB) (74) Representative: Swindell & Pearson Limited  48 Friar Gate Derby DE1 1GY Derby DE1 1GY (GB)