FR2521633B1 - - Google Patents

Info

Publication number
FR2521633B1
FR2521633B1 FR8203081A FR8203081A FR2521633B1 FR 2521633 B1 FR2521633 B1 FR 2521633B1 FR 8203081 A FR8203081 A FR 8203081A FR 8203081 A FR8203081 A FR 8203081A FR 2521633 B1 FR2521633 B1 FR 2521633B1
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
FR8203081A
Other languages
French (fr)
Other versions
FR2521633A1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8203081A priority Critical patent/FR2521633A1/fr
Publication of FR2521633A1 publication Critical patent/FR2521633A1/fr
Application granted granted Critical
Publication of FR2521633B1 publication Critical patent/FR2521633B1/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
    • E21B10/36—Percussion drill bits
    • 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
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • 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

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
FR8203081A 1982-02-18 1982-02-18 Trepan pour la perforation de materiaux tels que roche ou beton Granted FR2521633A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8203081A FR2521633A1 (fr) 1982-02-18 1982-02-18 Trepan pour la perforation de materiaux tels que roche ou beton

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8203081A FR2521633A1 (fr) 1982-02-18 1982-02-18 Trepan pour la perforation de materiaux tels que roche ou beton

Publications (2)

Publication Number Publication Date
FR2521633A1 FR2521633A1 (fr) 1983-08-19
FR2521633B1 true FR2521633B1 (de) 1984-06-29

Family

ID=9271318

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8203081A Granted FR2521633A1 (fr) 1982-02-18 1982-02-18 Trepan pour la perforation de materiaux tels que roche ou beton

Country Status (1)

Country Link
FR (1) FR2521633A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4301191A1 (de) * 1993-01-19 1994-07-21 Hawera Probst Kg Hartmetall Gesteinsbohrwerkzeug
EP0784733A1 (de) * 1994-10-14 1997-07-23 Kennametal Inc. Konkaver schneidmeissel
FR2738762B1 (fr) * 1995-09-18 1997-10-17 Diager Partie coupante d'un foret

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967491C (de) * 1951-05-01 1957-11-14 Seco Ltd Zweistufiger Gesteinsschlagbohrer
FR1154010A (fr) * 1955-06-17 1958-04-01 Hellefors Bruks Aktiebolag Perfectionnements aux foreuses au rocher
FR1176596A (fr) * 1956-06-27 1959-04-13 Sandvikens Jernverks Ab Tête de fleuret de perforation par percussion
BE653828A (de) * 1963-10-01
FR1374214A (fr) * 1963-11-15 1964-10-02 Diamant Boart Sa Procédé et machine de sondage ou de forage d'un sol
US3415332A (en) * 1967-03-08 1968-12-10 Gen Electric Drill bit
AT321207B (de) * 1972-11-15 1975-03-25 Boehler & Co Ag Geb Bohrverfahren und Vorrichtung zu seiner Durchführung

Also Published As

Publication number Publication date
FR2521633A1 (fr) 1983-08-19

Similar Documents

Publication Publication Date Title
FR2520616B1 (de)
DE3320440C2 (de)
DE3300044C2 (de)
DE3334905C2 (de)
DE3312968C2 (de)
DE3302730C2 (de)
FR2522691B1 (de)
FR2522759B1 (de)
DE8337893U1 (de)
FR2522200B1 (de)
DE3327298C2 (de)
DE3212078C2 (de)
DE3223007C2 (de)
DE3207582C2 (de)
DE3316914C2 (de)
DE3328885C2 (de)
FR2519402B1 (de)
FR2521260B3 (de)
DE3206094C2 (de)
FR2519543B1 (de)
DE3377439T2 (de)
FR2519391B3 (de)
FR2521283B3 (de)
DE3210213C2 (de)
DE3377666T2 (de)

Legal Events

Date Code Title Description
ST Notification of lapse