BE826797A - IMPROVEMENTS RELATING TO TREPANS - Google Patents

IMPROVEMENTS RELATING TO TREPANS

Info

Publication number
BE826797A
BE826797A BE154428A BE154428A BE826797A BE 826797 A BE826797 A BE 826797A BE 154428 A BE154428 A BE 154428A BE 154428 A BE154428 A BE 154428A BE 826797 A BE826797 A BE 826797A
Authority
BE
Belgium
Prior art keywords
trepans
improvements relating
relating
Prior art date
Application number
BE154428A
Other languages
French (fr)
Inventor
J R Hampson
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 BE826797A publication Critical patent/BE826797A/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
    • E21B10/46—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)
BE154428A 1974-03-21 1975-03-18 IMPROVEMENTS RELATING TO TREPANS BE826797A (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
BE826797A true BE826797A (en) 1975-07-16

Family

ID=10007637

Family Applications (1)

Application Number Title Priority Date Filing Date
BE154428A BE826797A (en) 1974-03-21 1975-03-18 IMPROVEMENTS RELATING TO TREPANS

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
JPS50129403A (en) 1975-10-13
IE40686L (en) 1975-09-21
GB1466700A (en) 1977-03-09
SE7502904L (en) 1975-09-22
DE2512652A1 (en) 1975-09-25
AU7923075A (en) 1976-09-23
FR2264961A1 (en) 1975-10-17
IE40686B1 (en) 1979-08-01
FI750837A (en) 1975-09-22
FR2264961B3 (en) 1977-11-25
NL7502813A (en) 1975-09-23
ZM2975A1 (en) 1976-01-21
ATA213575A (en) 1977-06-15
ES435899A1 (en) 1976-12-16
ZA751175B (en) 1976-01-28
CA1029366A (en) 1978-04-11

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