(19)

(11)

EP 3 610 072 A1

(12)

(43) Date of publication: 19.02.2020 Bulletin 2020/08 (21) Application number: 18760715.5 (22) Date of filing: 01.03.2018

(51) International Patent Classification (IPC):  E01H 5/06(2006.01) E02F 3/76(2006.01) (86) International application number: PCT/SE2018/000005 (87) International publication number: WO 2018/160113 (07.09.2018 Gazette 2018/36)

(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: 02.03.2017 SE 1730055 (71) Applicant: Norberg, Tomas 895 40 Mellansel (SE)	(72) Inventor: Norberg, Tomas 895 40 Mellansel (SE)