(19)

(11)

EP 3 740 615 A1

(12)

(43) Date of publication: 25.11.2020 Bulletin 2020/48 (21) Application number: 18845463.1 (22) Date of filing: 19.12.2018

(51) International Patent Classification (IPC):  E01B 7/02(2006.01) B61L 5/02(2006.01) (86) International application number: PCT/CZ2018/000060 (87) International publication number: WO 2019/120339 (27.06.2019 Gazette 2019/26)

(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: KH MA MD TN (30) Priority: 19.12.2017 RU 2017144594 (71) Applicant: EKOSLIDE, S.R.O. 110 00 Praha 1 (CZ)	(72) Inventor: SUCHAN, Václav 356 01 Královské Po î í (CZ) (74) Representative: Walter, Jiri  Pocernicka 54 CZ-108 00 Praha 10 CZ-108 00 Praha 10 (CZ)