(19)

(11)

EP 4 244 538 A1

(12)

(43) Date of publication: 20.09.2023 Bulletin 2023/38 (21) Application number: 21815581.0 (22) Date of filing: 11.10.2021

(51) International Patent Classification (IPC):  F24D 3/10(2006.01) C02F 1/68(2023.01) F24D 19/00(2006.01) (52) Cooperative Patent Classification (CPC): C02F 1/687; F24D 3/1083; F24D 19/0092 (86) International application number: PCT/GB2021/052626 (87) International publication number: WO 2022/079421 (21.04.2022 Gazette 2022/16)

(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: 12.10.2020 GB 202016151 22.02.2021 GB 202102500 (71) Applicant: Jepp, Christopher Bexleyheath, Kent DA7 5DA (GB)	(72) Inventor: Jepp, Christopher Bexleyheath, Kent DA7 5DA (GB) (74) Representative: Kemp, Paul Geoffrey  Invicta IP Ltd. 18c Fairfield Road Petts Wood Orpington BR5 1JR Orpington BR5 1JR (GB)