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(11)

EP 3 969 212 A1

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(43) Date of publication: 23.03.2022 Bulletin 2022/12 (21) Application number: 20729145.1 (22) Date of filing: 15.05.2020

(51) International Patent Classification (IPC):  B22F 3/105(2006.01) B33Y 50/02(2015.01) G01N 21/25(2006.01) G01N 21/49(2006.01) G01N 21/85(2006.01) B33Y 30/00(2015.01) G01N 15/06(2006.01) G01N 21/47(2006.01) G01N 21/51(2006.01) (52) Cooperative Patent Classification (CPC): G01N 15/06; G01N 2015/0693; G01N 21/51; G01N 21/85; B33Y 30/00; B33Y 50/02; G01N 21/27; G01N 2021/8557; G01N 2021/8592; B22F 10/20; B22F 10/30; B22F 10/70; Y02P 10/25 (86) International application number: PCT/GB2020/051187 (87) International publication number: WO 2020/229834 (19.11.2020 Gazette 2020/47)

(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: 15.05.2019 GB 201906876 (71) Applicant: LPW Technology Ltd Widnes, Cheshire WA8 OGU (GB)	(72) Inventors: ROBINSON, Ben Staffordshire ST4 8SE (GB) FERRAR, Ben Widnes Cheshire WA8 0GU (GB) WEEKS, Nicholas Paul Cheshire WA15 8TN (GB) (74) Representative: Wilson Gunn  Blackfriars House The Parsonage 5th Floor Manchester M3 2JA Manchester M3 2JA (GB)