METHOD FOR HANDLING DRILL CUTTINGS, DUST COLLECTION SYSTEM FOR ROCK DRILLING RIG, AND CHANGER UNIT - Patent 2321490

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EP 2 321 490 A1

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(43)	Date of publication:
	18.05.2011 Bulletin 2011/20

(21)	Application number: 09812742.6

(22)	Date of filing: 09.09.2009

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International Patent Classification (IPC):

E21B 21/07^(2006.01)

E21B 21/01^(2006.01)

(86)	International application number:
	PCT/FI2009/050721

(87)	International publication number:
	WO 2010/029216 (18.03.2010 Gazette 2010/11)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
	Designated Extension States:
	AL BA RS

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Priority:

10.09.2008 FI 20085848

(71)	Applicant: Sandvik Mining and Construction Oy
	33330 Tampere (FI)

(72)	Inventors:
	PAUKKUNEN, Hannu FI-33330 Tampere (FI) TIENARI, Ossi FI-33330 Tampere (FI)

(74)	Representative: Kaukonen, Juha Veikko
	Kolster Oy Ab Iso Roobertinkatu 23 P.O. Box 148 00121 Helsinki 00121 Helsinki (FI)

(54)	METHOD FOR HANDLING DRILL CUTTINGS, DUST COLLECTION SYSTEM FOR ROCK DRILLING RIG, AND CHANGER UNIT