(19)

(11)

EP 3 559 957 A2

(12)

(88) Date of publication A3: 16.08.2018 (43) Date of publication: 30.10.2019 Bulletin 2019/44 (21) Application number: 17837964.0 (22) Date of filing: 21.12.2017

(51) International Patent Classification (IPC):  G21F 5/14(2006.01) B65D 90/12(2006.01) B65D 88/06(2006.01) (86) International application number: PCT/EP2017/084226 (87) International publication number: WO 2018/115356 (28.06.2018 Gazette 2018/26)

(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 TN (30) Priority: 23.12.2016 GB 201622080 (71) Applicant: Soletanche Freyssinet S.A.S. 92500 Rueil-Malmaison (FR)	(72) Inventor: SHACKELL, Daniel Newbury Berkshire RG20 8SB (GB) (74) Representative: Dehns  St. Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)