FR2375435B3 - - Google Patents

Info

Publication number
FR2375435B3
FR2375435B3 FR7735395A FR7735395A FR2375435B3 FR 2375435 B3 FR2375435 B3 FR 2375435B3 FR 7735395 A FR7735395 A FR 7735395A FR 7735395 A FR7735395 A FR 7735395A FR 2375435 B3 FR2375435 B3 FR 2375435B3
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
FR7735395A
Other languages
French (fr)
Other versions
FR2375435A1 (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.)
WERKZEUGBAU GmbH
Original Assignee
WERKZEUGBAU GmbH
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 WERKZEUGBAU GmbH filed Critical WERKZEUGBAU GmbH
Publication of FR2375435A1 publication Critical patent/FR2375435A1/fr
Application granted granted Critical
Publication of FR2375435B3 publication Critical patent/FR2375435B3/fr
Granted 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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B10/56—Button-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
FR7735395A 1976-12-24 1977-11-24 Outil employe, notamment sur des marteaux perforateurs, pour forer des trous de mine dans la roche Granted FR2375435A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762658826 DE2658826C3 (de) 1976-12-24 1976-12-24 Gesteinsbohrkopf mit stiftförmigen, radiale Ansätze tragenden Schneiden und Werkzeug zum Herstellen der Durchbrüche für die radialen Ansätze in den Mantelflächen des Bohrkopfes

Publications (2)

Publication Number Publication Date
FR2375435A1 FR2375435A1 (fr) 1978-07-21
FR2375435B3 true FR2375435B3 (enrdf_load_stackoverflow) 1980-08-08

Family

ID=5996623

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7735395A Granted FR2375435A1 (fr) 1976-12-24 1977-11-24 Outil employe, notamment sur des marteaux perforateurs, pour forer des trous de mine dans la roche

Country Status (5)

Country Link
DE (1) DE2658826C3 (enrdf_load_stackoverflow)
DK (1) DK514777A (enrdf_load_stackoverflow)
FR (1) FR2375435A1 (enrdf_load_stackoverflow)
NL (1) NL7713777A (enrdf_load_stackoverflow)
SE (1) SE7713089L (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL7713777A (nl) 1978-06-27
DE2658826A1 (de) 1978-06-29
SE7713089L (sv) 1978-06-25
DK514777A (da) 1978-06-25
FR2375435A1 (fr) 1978-07-21
DE2658826B2 (de) 1979-01-18
DE2658826C3 (de) 1980-10-23

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse