CA1029366A - Drill bits - Google Patents

Drill bits

Info

Publication number
CA1029366A
CA1029366A CA222,633A CA222633A CA1029366A CA 1029366 A CA1029366 A CA 1029366A CA 222633 A CA222633 A CA 222633A CA 1029366 A CA1029366 A CA 1029366A
Authority
CA
Canada
Prior art keywords
drill bits
drill
bits
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
CA222,633A
Other languages
French (fr)
Inventor
John R. Hampson
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.)
Padley and Venables Ltd
Original Assignee
Padley and Venables 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
Application filed by Padley and Venables Ltd filed Critical Padley and Venables Ltd
Application granted granted Critical
Publication of CA1029366A publication Critical patent/CA1029366A/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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts
    • 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)
  • Drilling Tools (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
CA222,633A 1974-03-21 1975-03-20 Drill bits Expired CA1029366A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1260074A GB1466700A (en) 1974-03-21 1974-03-21 Drill bits

Publications (1)

Publication Number Publication Date
CA1029366A true CA1029366A (en) 1978-04-11

Family

ID=10007637

Family Applications (1)

Application Number Title Priority Date Filing Date
CA222,633A Expired CA1029366A (en) 1974-03-21 1975-03-20 Drill bits

Country Status (15)

Country Link
JP (1) JPS50129403A (en)
AT (1) ATA213575A (en)
AU (1) AU7923075A (en)
BE (1) BE826797A (en)
CA (1) CA1029366A (en)
DE (1) DE2512652A1 (en)
ES (1) ES435899A1 (en)
FI (1) FI750837A (en)
FR (1) FR2264961B3 (en)
GB (1) GB1466700A (en)
IE (1) IE40686B1 (en)
NL (1) NL7502813A (en)
SE (1) SE7502904L (en)
ZA (1) ZA751175B (en)
ZM (1) ZM2975A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT376765B (en) * 1978-05-16 1984-12-27 Guergen Karlheinz INTERCHANGEABLE DRILL BIT FOR ONE STONE DRILL DRILL AND DRILL BIT APPLICABLE TO ALL STONES
US5996714A (en) * 1997-07-15 1999-12-07 Kennametal Inc. Rotatable cutting bit assembly with wedge-lock retention assembly
DE19844820A1 (en) * 1998-09-30 2000-04-13 Holzmann Philipp Ag Drill tip for a drill pipe
CN110064739A (en) * 2019-05-30 2019-07-30 广西玉柴机器股份有限公司 A kind of sand mold drill bit

Also Published As

Publication number Publication date
BE826797A (en) 1975-07-16
FI750837A (en) 1975-09-22
IE40686L (en) 1975-09-21
ATA213575A (en) 1977-06-15
ZA751175B (en) 1976-01-28
DE2512652A1 (en) 1975-09-25
FR2264961B3 (en) 1977-11-25
JPS50129403A (en) 1975-10-13
NL7502813A (en) 1975-09-23
GB1466700A (en) 1977-03-09
AU7923075A (en) 1976-09-23
IE40686B1 (en) 1979-08-01
ZM2975A1 (en) 1976-01-21
ES435899A1 (en) 1976-12-16
SE7502904L (en) 1975-09-22
FR2264961A1 (en) 1975-10-17

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