MEANS FOR ANCHORING A ROCK BOLT MADE OF CONCRETE STEEL IN A DRILL HOLE - Patent 0680545

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EP 0 680 545 A1

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(43)	Date of publication:
	08.11.1995 Bulletin 1995/45

(21)	Application number: 94904195.0

(22)	Date of filing: 12.01.1994

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International Patent Classification (IPC):

E21D 20/ 02^{( . )}
E21D 21/ 00^{( . )}

E21D 20/ 00^{( . )}

(86)	International application number:
	PCT/FI1994/000014

(87)	International publication number:
	WO 1994/017283 (04.08.1994 Gazette 1994/18)

(84)	Designated Contracting States:
	AT CH DE FR GB IT LI SE

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Priority:

29.01.1993 FI 19930000414

(71)	Applicant: TAMROCK OY
	SF-33330 Tampere (FI)

(72)	Inventor:
	LAUNIEMI, Markku SF-33200 Tampere (FI)

(74)	Representative: Brunner, Michael John
	GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)

(54)	MEANS FOR ANCHORING A ROCK BOLT MADE OF CONCRETE STEEL IN A DRILL HOLE