AU442142B2 - Down - the-hole rock drills - Google Patents

Down - the-hole rock drills

Info

Publication number
AU442142B2
AU442142B2 AU58912/69A AU5891269A AU442142B2 AU 442142 B2 AU442142 B2 AU 442142B2 AU 58912/69 A AU58912/69 A AU 58912/69A AU 5891269 A AU5891269 A AU 5891269A AU 442142 B2 AU442142 B2 AU 442142B2
Authority
AU
Australia
Prior art keywords
rock drills
hole rock
hole
drills
rock
Prior art date
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
AU58912/69A
Other versions
AU5891269A (en
Inventor
Joseph Thomas William
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
Publication of AU5891269A publication Critical patent/AU5891269A/en
Application granted granted Critical
Publication of AU442142B2 publication Critical patent/AU442142B2/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
AU58912/69A 1966-10-19 1969-07-31 Down - the-hole rock drills Expired AU442142B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA666324 1966-10-19

Publications (2)

Publication Number Publication Date
AU5891269A AU5891269A (en) 1971-02-04
AU442142B2 true AU442142B2 (en) 1973-10-31

Family

ID=25561025

Family Applications (1)

Application Number Title Priority Date Filing Date
AU58912/69A Expired AU442142B2 (en) 1966-10-19 1969-07-31 Down - the-hole rock drills

Country Status (3)

Country Link
US (1) US3434548A (en)
AU (1) AU442142B2 (en)
GB (1) GB1180429A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592275A (en) * 1969-04-11 1971-07-13 Acker Drill Co Inc Spring loaded adapter for drill rods and core barrel
CN105401878B (en) * 2015-12-03 2019-04-09 山河智能装备股份有限公司 A kind of Large Diameter DTH Hammer hammer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1881258A (en) * 1930-10-16 1932-10-04 Ingersoll Rand Co Percussive tool
US2572841A (en) * 1946-05-31 1951-10-30 Joy Mfg Co Rock drill
GB946677A (en) * 1960-07-07 1964-01-15 Halifax Tool Co Ltd Improvements in or relating to pneumatically operated percussive hammers

Also Published As

Publication number Publication date
GB1180429A (en) 1970-02-04
US3434548A (en) 1969-03-25
AU5891269A (en) 1971-02-04

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