(19)

(11)

EP 3 692 246 A1

(12)

(43) Date of publication: 12.08.2020 Bulletin 2020/33 (21) Application number: 18865139.2 (22) Date of filing: 28.09.2018

(51) International Patent Classification (IPC):  E21D 20/02(2006.01) F16B 39/04(2006.01) E21D 21/00(2006.01) (86) International application number: PCT/SE2018/050996 (87) International publication number: WO 2019/070182 (11.04.2019 Gazette 2019/15)

(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: 02.10.2017 SE 1730273 (71) Applicant: Besab AB 422 59 Hisings Backa (SE)	(72) Inventor: ELLISON, Tommy 431 39 Mölndal (SE) (74) Representative: Valea AB  Box 1098 405 23 Göteborg 405 23 Göteborg (SE)