EP0003103A3 - Down-the-hole drilling - Google Patents

Down-the-hole drilling Download PDF

Info

Publication number
EP0003103A3
EP0003103A3 EP79100010A EP79100010A EP0003103A3 EP 0003103 A3 EP0003103 A3 EP 0003103A3 EP 79100010 A EP79100010 A EP 79100010A EP 79100010 A EP79100010 A EP 79100010A EP 0003103 A3 EP0003103 A3 EP 0003103A3
Authority
EP
European Patent Office
Prior art keywords
hole drilling
drilling
hole
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.)
Granted
Application number
EP79100010A
Other versions
EP0003103B2 (en
EP0003103B1 (en
EP0003103A2 (en
Inventor
James Oliver Mcenery
Frank William Morton
John Joseph O'dea
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boart International Ltd
Original Assignee
Boart International 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=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0003103(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Boart International Ltd filed Critical Boart International Ltd
Publication of EP0003103A2 publication Critical patent/EP0003103A2/en
Publication of EP0003103A3 publication Critical patent/EP0003103A3/en
Application granted granted Critical
Publication of EP0003103B1 publication Critical patent/EP0003103B1/en
Publication of EP0003103B2 publication Critical patent/EP0003103B2/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
    • 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)
EP79100010A 1978-01-06 1979-01-02 Down-the-hole drill Expired EP0003103B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA780091 1978-01-06
ZA00780091A ZA7891B (en) 1978-01-06 1978-01-06 Down-the-hole drilling

Publications (4)

Publication Number Publication Date
EP0003103A2 EP0003103A2 (en) 1979-07-25
EP0003103A3 true EP0003103A3 (en) 1979-08-08
EP0003103B1 EP0003103B1 (en) 1982-12-22
EP0003103B2 EP0003103B2 (en) 1986-12-10

Family

ID=25572468

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79100010A Expired EP0003103B2 (en) 1978-01-06 1979-01-02 Down-the-hole drill

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)

Citations (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
US3269471A (en) * 1963-11-26 1966-08-30 Robert T Alexander Rock drilling bit
US3299974A (en) * 1963-10-01 1967-01-24 P & V Mining & Engineering Ltd Percussive drill bits
DE1238864B (en) * 1966-03-17 1967-04-20 Fritz Zimmermann Countersunk hammer for large hole drilling machines
GB1071418A (en) * 1963-08-19 1967-06-07 P & V Mining & Engineering Ltd Improvements in rock-drilling tools
CA871004A (en) * 1966-06-24 1971-05-18 A. Bendo Allen Flushing bit
FR2200434A1 (en) * 1972-09-27 1974-04-19 Boehler & Co Ag Geb Pneumatic percussion drill hammer - with grooves as air vent channels on same side of 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

Patent Citations (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
US3299974A (en) * 1963-10-01 1967-01-24 P & V Mining & Engineering Ltd Percussive drill bits
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
FR2200434A1 (en) * 1972-09-27 1974-04-19 Boehler & Co Ag Geb Pneumatic percussion drill hammer - with grooves as air vent channels on same side of 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
EP0003103B2 (en) 1986-12-10
EP0003103B1 (en) 1982-12-22
EP0003103A2 (en) 1979-07-25
FI69183C (en) 1985-12-10
FI790023A (en) 1979-07-07
NO790011L (en) 1979-07-09
AU522330B2 (en) 1982-05-27
FI69183B (en) 1985-08-30
NO151016C (en) 1985-01-23
AU4314779A (en) 1979-07-12
ZA7891B (en) 1979-08-29
NO151016B (en) 1984-10-15

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