(19)
(11) EP 1 532 345 A1

(12)

(43) Date of publication:
25.05.2005 Bulletin 2005/21

(21) Application number: 03725969.4

(22) Date of filing: 26.05.2003
(51) International Patent Classification (IPC)7E21B 17/00, E21D 3/00
(86) International application number:
PCT/SE2003/000849
(87) International publication number:
WO 2003/102356 (11.12.2003 Gazette 2003/50)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 31.05.2002 SE 0201638

(71) Applicant: Atlas Copco Secoroc AB
737 25 Fagersta (SE)

(72) Inventor:
  • BRÄNNSTRÖM, Stig
    S-773 42 Fagersta (SE)

(74) Representative: Karlström, Lennart et al
Noréns Patentbyra AB,Box 10198
100 55 Stockholm
100 55 Stockholm (SE)

   


(54) SECURING ARRANGEMENT FOR REAMERS IN RAISE BORING