(19)
(11) EP 1 758 718 A1

(12)

(43) Date of publication:
07.03.2007 Bulletin 2007/10

(21) Application number: 05745006.6

(22) Date of filing: 20.05.2005
(51) International Patent Classification (IPC): 
B28C 7/04(2006.01)
E21D 20/02(2006.01)
 B28C 7/12(2006.01)
(86) International application number:
PCT/SE2005/000741
(87) International publication number:
WO 2006/001743 (05.01.2006 Gazette 2006/01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

(30) Priority: 23.06.2004 SE 0401616

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

(72) Inventor:
  • GUSTAVSSON, Hans
    S-703 78 Örebro (SE)

(74) Representative: Jansson, Margareta Karin 
Atlas Copco Rock Drills AB, Patents
701 91 Örebro
701 91 Örebro (SE)

   


(54) METHOD AND ARRANGEMENT FOR AUTOMATIC MIXING OF WATER AND CONCRETE FOR ROCK BOLTING