(19)

(11)

EP 4 739 841 A1

(12)

(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24748991.7 (22) Date of filing: 28.06.2024

(51) International Patent Classification (IPC):  E01B 7/00(2006.01) E01B 29/02(2006.01) (52) Cooperative Patent Classification (CPC): E01B 29/02; E01B 7/00 (86) International application number: PCT/GB2024/051700 (87) International publication number: WO 2025/008612 (09.01.2025 Gazette 2025/02)

(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: GE KH MA MD TN (30) Priority: 04.07.2023 GB 202310237 (71) Applicant: BMC Design and Innovations Limited Ballantrae KA26 0NB (GB)	(72) Inventor: MCCULLOCH, Billy Ballantrae KA26 0NB (GB) (74) Representative: Lincoln IP  4 Rubislaw Place Aberdeen AB10 1XN Aberdeen AB10 1XN (GB)