(19)

(11)

EP 3 963 145 A1

(12)

(43) Date of publication: 09.03.2022 Bulletin 2022/10 (21) Application number: 20724913.7 (22) Date of filing: 29.04.2020

(51) International Patent Classification (IPC):  E04C 3/07(2006.01) E04C 3/29(2006.01) E04C 3/08(2006.01) E04C 3/04(2006.01) E04C 3/28(2006.01) E04C 3/06(2006.01) E04C 3/09(2006.01) (52) Cooperative Patent Classification (CPC): E04C 3/29; E04C 3/083; E04C 3/07; E04C 2003/0452; E04C 2003/0439; E04C 3/28; E04C 3/06; E04C 3/291; E04C 3/09 (86) International application number: PCT/GB2020/051046 (87) International publication number: WO 2020/222000 (05.11.2020 Gazette 2020/45)

(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: 29.04.2019 GB 201905977 (71) Applicant: Wavebeam Limited Stonehaven, Aberdeenshire AB39 2QF (GB)	(72) Inventor: ZACCARINI, Tony Aberdeenshire AB39 2QF (GB) (74) Representative: Murgitroyd & Company  Murgitroyd House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)