(19)
(11) EP 3 119 989 A1

(12)

(43) Date of publication:
25.01.2017 Bulletin 2017/04

(21) Application number: 15721355.4

(22) Date of filing: 27.02.2015
(51) International Patent Classification (IPC): 
E21C 25/58(2006.01)
E21C 35/06(2006.01)
(86) International application number:
PCT/SE2015/050232
(87) International publication number:
WO 2015/137862 (17.09.2015 Gazette 2015/37)
(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

(30) Priority: 12.03.2014 SE 1450277

(71) Applicant: Atlas Copco Rock Drills AB
701 91 Örebro (SE)

(72) Inventors:
  • HARTWIG, Sverker
    S-187 33 Täby (SE)
  • KÄMPE, Ulf
    S-692 33 Kumla (SE)
  • SPÅNGBERG, Camilla
    S-702 30 Örebro (SE)

(74) Representative: Ehrner & Delmar Patentbyrå AB 
Box 10316
100 55 Stockholm
100 55 Stockholm (SE)

   


(54) DRILLING RIG AND METHOD