(19)

(11)

EP 3 417 106 A1

(12)

(43) Date of publication: 26.12.2018 Bulletin 2018/52 (21) Application number: 17753586.1 (22) Date of filing: 20.02.2017

(51) International Patent Classification (IPC):  E01B 7/24(2006.01) E01B 19/00(2006.01) (86) International application number: PCT/SE2017/050157 (87) International publication number: WO 2017/142473 (24.08.2017 Gazette 2017/34)

(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: 18.02.2016 US 201662296780 P (71) Applicant: STEGIA AB 723 48 Västerås (SE)	(72) Inventor: FÄLLDIN, Agne 854 61 Sundsvall (SE) (74) Representative: Sandström, Staffan Sven  Sandström & Sandström IP AB Boda 193 91 Sigtuna 193 91 Sigtuna (SE)