CH521511A - Gesteinsbohrkrone, insbesondere für Schlagbohrgeräte - Google Patents

Gesteinsbohrkrone, insbesondere für Schlagbohrgeräte

Info

Publication number
CH521511A
CH521511A CH764971A CH764971A CH521511A CH 521511 A CH521511 A CH 521511A CH 764971 A CH764971 A CH 764971A CH 764971 A CH764971 A CH 764971A CH 521511 A CH521511 A CH 521511A
Authority
CH
Switzerland
Prior art keywords
drill bits
rock drill
percussion drills
percussion
drills
Prior art date
Application number
CH764971A
Other languages
German (de)
English (en)
Inventor
Fischer Ernst Ing Dr
Original Assignee
Boehler & Co Ag Geb
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 Boehler & Co Ag Geb filed Critical Boehler & Co Ag Geb
Publication of CH521511A publication Critical patent/CH521511A/de

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
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
    • 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)
CH764971A 1970-06-05 1971-05-24 Gesteinsbohrkrone, insbesondere für Schlagbohrgeräte CH521511A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT504170A AT302937B (de) 1970-06-05 1970-06-05 Gesteinsbohrkrone, insbesondere für Schlagbohrgeräte

Publications (1)

Publication Number Publication Date
CH521511A true CH521511A (de) 1972-04-15

Family

ID=3571262

Family Applications (1)

Application Number Title Priority Date Filing Date
CH764971A CH521511A (de) 1970-06-05 1971-05-24 Gesteinsbohrkrone, insbesondere für Schlagbohrgeräte

Country Status (6)

Country Link
US (1) US3800892A (OSRAM)
AT (1) AT302937B (OSRAM)
BE (1) BE768001A (OSRAM)
CH (1) CH521511A (OSRAM)
DE (1) DE2124958A1 (OSRAM)
FR (1) FR2095838A5 (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101458A1 (de) * 1991-01-19 1992-07-23 Wolf Thomas Fuer einen mit axialem druck und schlaegen arbeitenden, umlaufenden gesteinsbohrer bestimmter bohrmeissel

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915246A (en) * 1974-05-16 1975-10-28 Adel E Sheshtawy Rotary drilling bit
US4296825A (en) * 1977-11-25 1981-10-27 Sandvik Aktiebolag Rock drill
US4304312A (en) * 1980-01-11 1981-12-08 Sandvik Aktiebolag Percussion drill bit having centrally projecting insert
US4515226A (en) * 1983-03-07 1985-05-07 Norton Christensen, Inc. Tooth design to avoid shearing stresses
FR2623242A1 (fr) * 1987-11-12 1989-05-19 Contant Paul Carottier pneumatique pour fouilles cylindriques en roches
US5467836A (en) * 1992-01-31 1995-11-21 Baker Hughes Incorporated Fixed cutter bit with shear cutting gage
GB2296267B (en) * 1994-12-21 1998-06-10 Smith International Hammer rock bit gage protection
SE0402026L (sv) * 2004-08-17 2006-01-17 Sandvik Intellectual Property Bergborrkrona och gängförband för slående bergborrning

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE645377A (OSRAM) *
US2689108A (en) * 1950-07-04 1954-09-14 Sandvikens Jernverks Ab Rock drill bit with hard m etal cutting insert
US3185228A (en) * 1963-01-21 1965-05-25 Hughes Tool Co Rotary-percussion drill bit with heel row inserts to prevent wedging
US3311181A (en) * 1964-05-04 1967-03-28 John B Fowler Bi-metal drilling tooth
US3346060A (en) * 1965-12-23 1967-10-10 Beyer Leaman Rex Rotary-air-percussion, stabilizer and reamer drill bit of its own true gauge
US3536150A (en) * 1968-09-05 1970-10-27 Frank E Stebley Rotary-percussion drill bit
US3583504A (en) * 1969-02-24 1971-06-08 Mission Mfg Co Gauge cutting bit
US3548959A (en) * 1969-07-10 1970-12-22 Gulf Research Development Co Relief-type jet bits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101458A1 (de) * 1991-01-19 1992-07-23 Wolf Thomas Fuer einen mit axialem druck und schlaegen arbeitenden, umlaufenden gesteinsbohrer bestimmter bohrmeissel

Also Published As

Publication number Publication date
AT302937B (de) 1972-11-10
FR2095838A5 (OSRAM) 1972-02-11
US3800892A (en) 1974-04-02
BE768001A (fr) 1971-11-03
DE2124958A1 (de) 1971-12-16

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Legal Events

Date Code Title Description
PL Patent ceased