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(11)

EP 3 233 605 A1

(12)

(43) Date of publication: 25.10.2017 Bulletin 2017/43 (21) Application number: 15870461.9 (22) Date of filing: 15.12.2015

(51) International Patent Classification (IPC):  B61B 13/06(2006.01) E01B 5/14(2006.01) (86) International application number: PCT/SE2015/051341 (87) International publication number: WO 2016/099387 (23.06.2016 Gazette 2016/25)

(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: 18.12.2014 SE 1451590 (71) Applicant: Il Granito AB 451 50 Uddevalla (SE)	(72) Inventors: SKARIN, Lars SE-451 51 Uddevalla (SE) KREWER, Lars SE-451 62 Uddevalla (SE) (74) Representative: Aros Patent AB  Box 1544 751 45 Uppsala 751 45 Uppsala (SE)