(19)

(11)

EP 3 475 042 A2

(12)

(88) Date of publication A3: 08.02.2018 (43) Date of publication: 01.05.2019 Bulletin 2019/18 (21) Application number: 17748849.1 (22) Date of filing: 26.06.2017

(51) International Patent Classification (IPC):  B28B 23/00(2006.01) E04B 5/32(2006.01) (86) International application number: PCT/GB2017/051854 (87) International publication number: WO 2017/221033 (28.12.2017 Gazette 2017/52)

(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: 24.06.2016 GB 201611011 (71) Applicant: Varnava, Varnavas London NW8 8NJ (GB)	(72) Inventor: Varnava, Varnavas London NW8 8NJ (GB) (74) Representative: ip21 Ltd  Central Formalities Department Lakeside 300 Old Chapel Way Broadland Business Park Norwich Norfolk NR7 0WG Broadland Business Park Norwich Norfolk NR7 0WG (GB)