METHOD OF ORIENTATION OF A ROCK DRILLING RIG - Patent 1421254

(19)

(11)

EP 1 421 254 A1

(12)

(43)	Date of publication:
	26.05.2004 Bulletin 2004/22

(21)	Application number: 02768242.6

(22)	Date of filing: 20.08.2002

(51)	International Patent Classification (IPC)⁷: E21B 7/02, E21B 15/00

(86)	International application number:
	PCT/SE2002/001477

(87)	International publication number:
	WO 2003/018952 (06.03.2003 Gazette 2003/10)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

29.08.2001 SE 0102868

(71)	Applicant: ATLAS COPCO ROCK DRILLS AB
	701 91 Orebro (SE)

(72)	Inventor:
	ELSRUD, Rolf S-705 95 Örebro (SE)

(74)	Representative: Grundfelt, Erik Gunnar
	Atlas Copco Rock Drills AB,Patents 701 91 Örebro 701 91 Örebro (SE)

(54)	METHOD OF ORIENTATION OF A ROCK DRILLING RIG