IMPROVED ROCK ANCHOR AND METHOD OF MANUFACTURE - Patent 0442935

(19)

(11)

EP 0 442 935 A1

(12)

(43)	Date of publication:
	28.08.1991 Bulletin 1991/35

(21)	Application number: 89912755.0

(22)	Date of filing: 14.11.1989

(51)

International Patent Classification (IPC):

D07B 1/ 00^{( . )}
E21D 21/ 00^{( . )}

D07B 7/ 18^{( . )}

(86)	International application number:
	PCT/AU1989/000486

(87)	International publication number:
	WO 1990/005811 (31.05.1990 Gazette 1990/12)

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

(30)

Priority:

14.11.1988 AU 19880001416

(71)	Applicant: GARFORD PTY LTD
	Lansdale, W.A. 6065 (AU)

(72)	Inventor:
	HEDRICK, Neville, Allan Padbury, W.A. 6025 (AU)

(74)	Representative: Opperman, Stuart Richard
	Haseltine Lake & Co. Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT London WC2A 1AT (GB)

(54)	IMPROVED ROCK ANCHOR AND METHOD OF MANUFACTURE