FI750837A7 - - Google Patents

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Info

Publication number
FI750837A7
FI750837A7 FI750837A FI750837A FI750837A7 FI 750837 A7 FI750837 A7 FI 750837A7 FI 750837 A FI750837 A FI 750837A FI 750837 A FI750837 A FI 750837A FI 750837 A7 FI750837 A7 FI 750837A7
Authority
FI
Finland
Application number
FI750837A
Other languages
Finnish (fi)
Inventor
John Raymond Hampson
Original Assignee
Padley & 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 & Venables Ltd filed Critical Padley & Venables Ltd
Publication of FI750837A7 publication Critical patent/FI750837A7/fi

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)
FI750837A 1974-03-21 1975-03-20 FI750837A7 (enrdf_load_stackoverflow)

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
FI750837A7 true FI750837A7 (enrdf_load_stackoverflow) 1975-09-22

Family

ID=10007637

Family Applications (1)

Application Number Title Priority Date Filing Date
FI750837A FI750837A7 (enrdf_load_stackoverflow) 1974-03-21 1975-03-20

Country Status (15)

Country Link
JP (1) JPS50129403A (enrdf_load_stackoverflow)
AT (1) ATA213575A (enrdf_load_stackoverflow)
AU (1) AU7923075A (enrdf_load_stackoverflow)
BE (1) BE826797A (enrdf_load_stackoverflow)
CA (1) CA1029366A (enrdf_load_stackoverflow)
DE (1) DE2512652A1 (enrdf_load_stackoverflow)
ES (1) ES435899A1 (enrdf_load_stackoverflow)
FI (1) FI750837A7 (enrdf_load_stackoverflow)
FR (1) FR2264961B3 (enrdf_load_stackoverflow)
GB (1) GB1466700A (enrdf_load_stackoverflow)
IE (1) IE40686B1 (enrdf_load_stackoverflow)
NL (1) NL7502813A (enrdf_load_stackoverflow)
SE (1) SE7502904L (enrdf_load_stackoverflow)
ZA (1) ZA751175B (enrdf_load_stackoverflow)
ZM (1) ZM2975A1 (enrdf_load_stackoverflow)

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
FR2264961B3 (enrdf_load_stackoverflow) 1977-11-25
AU7923075A (en) 1976-09-23
ZM2975A1 (en) 1976-01-21
IE40686L (en) 1975-09-21
BE826797A (fr) 1975-07-16
SE7502904L (enrdf_load_stackoverflow) 1975-09-22
IE40686B1 (en) 1979-08-01
ES435899A1 (es) 1976-12-16
DE2512652A1 (de) 1975-09-25
ZA751175B (en) 1976-01-28
NL7502813A (nl) 1975-09-23
GB1466700A (en) 1977-03-09
CA1029366A (en) 1978-04-11
FR2264961A1 (enrdf_load_stackoverflow) 1975-10-17
JPS50129403A (enrdf_load_stackoverflow) 1975-10-13
ATA213575A (de) 1977-06-15

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: PADLEY & VENABLES LTD