FR2264961B3 - - Google Patents

Info

Publication number
FR2264961B3
FR2264961B3 FR7508344A FR7508344A FR2264961B3 FR 2264961 B3 FR2264961 B3 FR 2264961B3 FR 7508344 A FR7508344 A FR 7508344A FR 7508344 A FR7508344 A FR 7508344A FR 2264961 B3 FR2264961 B3 FR 2264961B3
Authority
FR
France
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
FR7508344A
Other versions
FR2264961A1 (fr
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
Publication of FR2264961A1 publication Critical patent/FR2264961A1/fr
Application granted granted Critical
Publication of FR2264961B3 publication Critical patent/FR2264961B3/fr
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)
FR7508344A 1974-03-21 1975-03-18 Expired FR2264961B3 (fr)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2264961A1 FR2264961A1 (fr) 1975-10-17
FR2264961B3 true FR2264961B3 (fr) 1977-11-25

Family

ID=10007637

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7508344A Expired FR2264961B3 (fr) 1974-03-21 1975-03-18

Country Status (15)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT376765B (de) * 1978-05-16 1984-12-27 Guergen Karlheinz Auswechselbare bohrkrone fuer einen bei allen gesteinsarten anwendbaren gesteindrehschlagbohrer und bohrhammer
US5996714A (en) * 1997-07-15 1999-12-07 Kennametal Inc. Rotatable cutting bit assembly with wedge-lock retention assembly
DE19844820A1 (de) * 1998-09-30 2000-04-13 Holzmann Philipp Ag Bohrspitze für ein Bohrrohr
CN110064739A (zh) * 2019-05-30 2019-07-30 广西玉柴机器股份有限公司 一种砂型钻头

Also Published As

Publication number Publication date
GB1466700A (en) 1977-03-09
SE7502904L (fr) 1975-09-22
FR2264961A1 (fr) 1975-10-17
ZM2975A1 (en) 1976-01-21
ES435899A1 (es) 1976-12-16
JPS50129403A (fr) 1975-10-13
AU7923075A (en) 1976-09-23
BE826797A (fr) 1975-07-16
ZA751175B (en) 1976-01-28
IE40686L (en) 1975-09-21
IE40686B1 (en) 1979-08-01
NL7502813A (nl) 1975-09-23
ATA213575A (de) 1977-06-15
DE2512652A1 (de) 1975-09-25
CA1029366A (fr) 1978-04-11
FI750837A (fr) 1975-09-22

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Legal Events

Date Code Title Description
ST Notification of lapse