(19)

(11)

EP 3 446 037 A1

(12)

(43) Date of publication: 27.02.2019 Bulletin 2019/09 (21) Application number: 17719892.6 (22) Date of filing: 21.04.2017

(51) International Patent Classification (IPC):  F23G 7/08(2006.01) F23D 14/82(2006.01) (86) International application number: PCT/GB2017/051118 (87) International publication number: WO 2017/182824 (26.10.2017 Gazette 2017/43)

(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: MA MD (30) Priority: 21.04.2016 GB 201606969 (71) Applicant: Elmac Technologies Limited Holywell, Flintshire CH8 9DP (GB)	(72) Inventors: BINGHAM, Lewis Holywell Flintshire CH8 9DP (GB) HONG, Daomin Holywell Flintshire CH8 9DP (GB) (74) Representative: HGF Limited  Cavendish House 39-41 Waterloo Street Birmingham, West Midlands B2 5PP Birmingham, West Midlands B2 5PP (GB)