AT302937B - Gesteinsbohrkrone, insbesondere für Schlagbohrgeräte - Google Patents
Gesteinsbohrkrone, insbesondere für SchlagbohrgeräteInfo
- Publication number
- AT302937B AT302937B AT504170A AT504170A AT302937B AT 302937 B AT302937 B AT 302937B AT 504170 A AT504170 A AT 504170A AT 504170 A AT504170 A AT 504170A AT 302937 B AT302937 B AT 302937B
- Authority
- AT
- Austria
- Prior art keywords
- drill bits
- rock drill
- percussion drills
- percussion
- drills
- Prior art date
Links
- 238000009527 percussion Methods 0.000 title 1
- 239000011435 rock Substances 0.000 title 1
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)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT504170A AT302937B (de) | 1970-06-05 | 1970-06-05 | Gesteinsbohrkrone, insbesondere für Schlagbohrgeräte |
DE19712124958 DE2124958A1 (de) | 1970-06-05 | 1971-05-19 | Gesteinsbohrkrone, insbesondere für Schlagbohrgeräte |
CH764971A CH521511A (de) | 1970-06-05 | 1971-05-24 | Gesteinsbohrkrone, insbesondere für Schlagbohrgeräte |
BE768001A BE768001A (fr) | 1970-06-05 | 1971-06-02 | Couronne de fleuret pour roches, notamment pour appareil de forage a percussion |
FR7120066A FR2095838A5 (de) | 1970-06-05 | 1971-06-03 | |
US00150134A US3800892A (en) | 1970-06-05 | 1971-06-04 | Rock drill bit |
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 |
---|---|
AT302937B true AT302937B (de) | 1972-11-10 |
Family
ID=3571262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT504170A AT302937B (de) | 1970-06-05 | 1970-06-05 | Gesteinsbohrkrone, insbesondere für Schlagbohrgeräte |
Country Status (6)
Country | Link |
---|---|
US (1) | US3800892A (de) |
AT (1) | AT302937B (de) |
BE (1) | BE768001A (de) |
CH (1) | CH521511A (de) |
DE (1) | DE2124958A1 (de) |
FR (1) | FR2095838A5 (de) |
Families Citing this family (9)
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 |
DE4101458A1 (de) * | 1991-01-19 | 1992-07-23 | Wolf Thomas | Fuer einen mit axialem druck und schlaegen arbeitenden, umlaufenden gesteinsbohrer bestimmter bohrmeissel |
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 |
SE527202C2 (sv) * | 2004-08-17 | 2006-01-17 | Sandvik Intellectual Property | Bergborrkrona och gängförband för slående bergborrning |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE645377A (de) * | ||||
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 |
-
1970
- 1970-06-05 AT AT504170A patent/AT302937B/de not_active IP Right Cessation
-
1971
- 1971-05-19 DE DE19712124958 patent/DE2124958A1/de active Pending
- 1971-05-24 CH CH764971A patent/CH521511A/de not_active IP Right Cessation
- 1971-06-02 BE BE768001A patent/BE768001A/xx unknown
- 1971-06-03 FR FR7120066A patent/FR2095838A5/fr not_active Expired
- 1971-06-04 US US00150134A patent/US3800892A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CH521511A (de) | 1972-04-15 |
DE2124958A1 (de) | 1971-12-16 |
BE768001A (fr) | 1971-11-03 |
FR2095838A5 (de) | 1972-02-11 |
US3800892A (en) | 1974-04-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |