ZA7891B - Down-the-hole drilling - Google Patents

Down-the-hole drilling

Info

Publication number
ZA7891B
ZA7891B ZA00780091A ZA7891A ZA7891B ZA 7891 B ZA7891 B ZA 7891B ZA 00780091 A ZA00780091 A ZA 00780091A ZA 7891 A ZA7891 A ZA 7891A ZA 7891 B ZA7891 B ZA 7891B
Authority
ZA
South Africa
Prior art keywords
hole drilling
drilling
hole
Prior art date
Application number
ZA00780091A
Inventor
J Mcenery
F Morton
J Odea
Original Assignee
Boart Int Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25572468&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA7891(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Boart Int Ltd filed Critical Boart Int Ltd
Priority to ZA00780091A priority Critical patent/ZA7891B/en
Priority to EP79100010A priority patent/EP0003103B2/en
Priority to NO79790011A priority patent/NO151016C/en
Priority to FI790023A priority patent/FI69183C/en
Priority to AU43147/79A priority patent/AU522330B2/en
Publication of ZA7891B publication Critical patent/ZA7891B/en

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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
ZA00780091A 1978-01-06 1978-01-06 Down-the-hole drilling ZA7891B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ZA00780091A ZA7891B (en) 1978-01-06 1978-01-06 Down-the-hole drilling
EP79100010A EP0003103B2 (en) 1978-01-06 1979-01-02 Down-the-hole drill
NO79790011A NO151016C (en) 1978-01-06 1979-01-02 BORQRONE FOR SINGLE DRILLING
FI790023A FI69183C (en) 1978-01-06 1979-01-04 BORRBETT
AU43147/79A AU522330B2 (en) 1978-01-06 1979-01-05 Down-the-hole drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA00780091A ZA7891B (en) 1978-01-06 1978-01-06 Down-the-hole drilling

Publications (1)

Publication Number Publication Date
ZA7891B true ZA7891B (en) 1979-08-29

Family

ID=25572468

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00780091A ZA7891B (en) 1978-01-06 1978-01-06 Down-the-hole drilling

Country Status (5)

Country Link
EP (1) EP0003103B2 (en)
AU (1) AU522330B2 (en)
FI (1) FI69183C (en)
NO (1) NO151016C (en)
ZA (1) ZA7891B (en)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US321023A (en) * 1885-06-30 hammer
US1943880A (en) * 1930-05-08 1934-01-16 Detachable Bit Corp Of America Drill
US2507221A (en) * 1946-08-19 1950-05-09 Phipps Orville Single edge percussion bit
US3155180A (en) * 1962-04-27 1964-11-03 Ingersoll Rand Canada Drill bit with fluid passages
US3225841A (en) * 1962-08-31 1965-12-28 Joy Mfg Co Drilling apparatus
GB1071418A (en) * 1963-08-19 1967-06-07 P & V Mining & Engineering Ltd Improvements in rock-drilling tools
BE653828A (en) * 1963-10-01
US3269471A (en) * 1963-11-26 1966-08-30 Robert T Alexander Rock drilling bit
DE1238864B (en) * 1966-03-17 1967-04-20 Fritz Zimmermann Countersunk hammer for large hole drilling machines
CA871004A (en) * 1966-06-24 1971-05-18 A. Bendo Allen Flushing bit
AT323100B (en) * 1972-09-27 1975-06-25 Boehler & Co Ag Geb Sinking hammer
AU450556B2 (en) * 1973-01-09 1974-07-11 "improvements in rock drill bits"
US3866746A (en) * 1973-08-27 1975-02-18 Bakerdrill Inc Rotary bore hole air hammer drive mechanism
US3991834A (en) * 1975-07-07 1976-11-16 Curington Alfred R Sampling airhammer apparatus

Also Published As

Publication number Publication date
EP0003103B1 (en) 1982-12-22
NO790011L (en) 1979-07-09
EP0003103A3 (en) 1979-08-08
EP0003103B2 (en) 1986-12-10
FI790023A (en) 1979-07-07
FI69183B (en) 1985-08-30
AU4314779A (en) 1979-07-12
NO151016B (en) 1984-10-15
FI69183C (en) 1985-12-10
AU522330B2 (en) 1982-05-27
EP0003103A2 (en) 1979-07-25
NO151016C (en) 1985-01-23

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