(19)
(11) EP 3 688 284 A1

(12)

(43) Date of publication:
05.08.2020 Bulletin 2020/32

(21) Application number: 17784883.5

(22) Date of filing: 29.09.2017
(51) International Patent Classification (IPC): 
E21C 25/10(2006.01)
E21C 27/24(2006.01)
E21C 27/12(2006.01)
 E21C 27/22(2006.01)
E21C 25/52(2006.01)
(86) International application number:
PCT/EP2017/074757
(87) International publication number:
WO 2019/063088 (04.04.2019 Gazette 2019/14)
(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

(71) Applicant: Sandvik Intellectual Property AB
811 81 Sandviken (SE)

(72) Inventors:
  • GRIEF, Ralf
    8740 Weisskirchen in Steiermark (AT)
  • PUCHER, Friedrich
    8753 Foknsdorf (AU)
  • IRREGGER, Karl
    8741 Weisskirchen (AT)

(74) Representative: Sandvik 
Sandvik Mining and Construction Oy PL 100 Patent Department
33311 Tampere
33311 Tampere (FI)

   


(54) CUTTING DRUM FOR BORER MINER