METHOD AND SYSTEM FOR CONTROLLING POWER CONSUMPTION DURING A ROCK DRILLING PROCESS AND A ROCK DRILLING APPARATUS THEREFORE - Patent 1699999

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EP 1 699 999 A1

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(43)	Date of publication:
	13.09.2006 Bulletin 2006/37

(21)	Application number: 04820890.4

(22)	Date of filing: 29.11.2004

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International Patent Classification (IPC):

E21B 21/08^(2006.01)

E21B 44/00^(2006.01)

(86)	International application number:
	PCT/SE2004/001758

(87)	International publication number:
	WO 2005/064111 (14.07.2005 Gazette 2005/28)

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

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Priority:

29.12.2003 SE 0303548

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

(72)	Inventors:
	HARTWIG, Sverker S-187 33 Täby (SE) HENRYSSON, Jonas S-716 92 Fjugesta (SE)

(74)	Representative: Janson, Ronny
	Ehrner & Delmar Patentbyra AB, Box 10316 100 55 Stockholm 100 55 Stockholm (SE)

(54)	METHOD AND SYSTEM FOR CONTROLLING POWER CONSUMPTION DURING A ROCK DRILLING PROCESS AND A ROCK DRILLING APPARATUS THEREFORE