AU450556B2 - - Google Patents

Info

Publication number
AU450556B2
AU450556B2 AU5091273A AU5091273A AU450556B2 AU 450556 B2 AU450556 B2 AU 450556B2 AU 5091273 A AU5091273 A AU 5091273A AU 5091273 A AU5091273 A AU 5091273A AU 450556 B2 AU450556 B2 AU 450556B2
Authority
AU
Australia
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU5091273A
Other versions
AU5091273A (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to AU5091273A priority Critical patent/AU450556B2/xx
Application granted granted Critical
Publication of AU450556B2 publication Critical patent/AU450556B2/xx
Publication of AU5091273A publication Critical patent/AU5091273A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58Chisel-type inserts
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/36Percussion drill bits
    • E21B10/38Percussion drill bits characterised by conduits or nozzles for drilling fluids
AU5091273A 1973-01-09 1973-01-09 Expired AU450556B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU5091273A AU450556B2 (de) 1973-01-09 1973-01-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU5091273A AU450556B2 (de) 1973-01-09 1973-01-09

Publications (2)

Publication Number Publication Date
AU450556B2 true AU450556B2 (de) 1974-07-11
AU5091273A AU5091273A (en) 1974-07-11

Family

ID=3737486

Family Applications (1)

Application Number Title Priority Date Filing Date
AU5091273A Expired AU450556B2 (de) 1973-01-09 1973-01-09

Country Status (1)

Country Link
AU (1) AU450556B2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003103A2 (de) * 1978-01-06 1979-07-25 Boart International Limited Schlagbohrhammer
WO2002092957A3 (de) * 2001-05-17 2003-04-17 Atlas Copco Mai Gmbh Bohrkrone

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003103A2 (de) * 1978-01-06 1979-07-25 Boart International Limited Schlagbohrhammer
EP0003103A3 (en) * 1978-01-06 1979-08-08 Boart International Limited Down-the-hole drilling
WO2002092957A3 (de) * 2001-05-17 2003-04-17 Atlas Copco Mai Gmbh Bohrkrone
EP1564365A2 (de) 2001-05-17 2005-08-17 Atlas Copco Mai GmbH Bohrkrone
EP1564365A3 (de) * 2001-05-17 2007-05-02 Atlas Copco Mai GmbH Bohrkrone

Also Published As

Publication number Publication date
AU5091273A (en) 1974-07-11

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