(19)
(11) EP 4 179 184 A1

(12)

(43) Date of publication:
17.05.2023 Bulletin 2023/20

(21) Application number: 21745464.4

(22) Date of filing: 06.07.2021
(51) International Patent Classification (IPC): 
E21D 20/02(2006.01)
(52) Cooperative Patent Classification (CPC):
E21D 20/025; E21D 20/028
(86) International application number:
PCT/SE2021/050684
(87) International publication number:
WO 2022/010407 (13.01.2022 Gazette 2022/02)
(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: 09.07.2020 SE 2050868

(71) Applicant: Epiroc Rock Drills Aktiebolag
701 91 Örebro (SE)

(72) Inventors:
  • JAKOBSSON, Lars Henrik
    705 97 Glanshammar (SE)
  • JAKOBSSON, Carl Henrik
    694 50 Vretstorp (SE)

(74) Representative: Epiroc Rock Drills AB 
Patents
701 91 Örebro
701 91 Örebro (SE)

   


(54) APPARATUS AND METHOD FOR SECURING AN ANCHOR BOLT