HYDRAULIC IMPACT DEVICE WITH PRESSURE ACCUMULATOR - Patent 2064033

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EP 2 064 033 A1

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(43)	Date of publication:
	03.06.2009 Bulletin 2009/23

(21)	Application number: 07808828.3

(22)	Date of filing: 19.09.2007

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International Patent Classification (IPC):

B25D 9/14^(2006.01)
F15B 1/14^(2006.01)

E21B 1/26^(2006.01)

(86)	International application number:
	PCT/SE2007/000819

(87)	International publication number:
	WO 2008/036019 (27.03.2008 Gazette 2008/13)

(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 LV MC MT NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK RS

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Priority:

19.09.2006 SE 0601923

(71)	Applicant: Atlas Copco Construction Tools AB
	105 23 Stockholm (SE)

(72)	Inventor:
	KARLSSON, Peter Börje Sixten 392 38 Kalmar (SE)

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

(54)	HYDRAULIC IMPACT DEVICE WITH PRESSURE ACCUMULATOR