(19)

(11)

EP 4 248 006 A1

(12)

(43) Date of publication: 27.09.2023 Bulletin 2023/39 (21) Application number: 21819175.7 (22) Date of filing: 19.11.2021

(51) International Patent Classification (IPC):  D03D 15/513(2021.01) E04B 1/94(2006.01) A62C 2/10(2006.01) (52) Cooperative Patent Classification (CPC): D03D 15/513; D10B 2505/20; A62C 3/0214; A62C 3/0257; E04B 1/948; E04B 1/7046 (86) International application number: PCT/GB2021/053006 (87) International publication number: WO 2022/106839 (27.05.2022 Gazette 2022/21)

(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: 20.11.2020 GB 202018271 (71) Applicant: Brennan Enterprise Limited Littleborough, Lancashire OL15 0LR (GB)	(72) Inventors: GOVARTHANAM, Karthick Kanchi Littleborough Lancashire OL15 0LR (GB) BRENNAN, Yvonne Littleborough Lancashire OL15 0LR (GB) (74) Representative: Wilson Gunn  Blackfriars House The Parsonage 5th Floor Manchester M3 2JA Manchester M3 2JA (GB)