BR7502992A - Aperfeicoamento em maquina de perfurar rocha - Google Patents
Aperfeicoamento em maquina de perfurar rochaInfo
- Publication number
- BR7502992A BR7502992A BR3815/75D BR7503815D BR7502992A BR 7502992 A BR7502992 A BR 7502992A BR 3815/75 D BR3815/75 D BR 3815/75D BR 7503815 D BR7503815 D BR 7503815D BR 7502992 A BR7502992 A BR 7502992A
- Authority
- BR
- Brazil
- Prior art keywords
- improvement
- drilling machine
- rock drilling
- rock
- machine
- Prior art date
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
- E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
- E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-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
- E21B10/08—Roller bits
- E21B10/12—Roller bits with discs cutters
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA00743063A ZA743063B (en) | 1974-05-14 | 1974-05-14 | Improvements in or relating to disc cutters for rock boring machines |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7502992A true BR7502992A (pt) | 1976-03-23 |
Family
ID=25567688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR3815/75D BR7502992A (pt) | 1974-05-14 | 1975-05-14 | Aperfeicoamento em maquina de perfurar rocha |
Country Status (3)
Country | Link |
---|---|
BR (1) | BR7502992A (pt) |
GB (1) | GB1479374A (pt) |
ZA (1) | ZA743063B (pt) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5785135B1 (en) * | 1996-10-03 | 2000-05-02 | Baker Hughes Inc | Earth-boring bit having cutter with replaceable kerf ring with contoured inserts |
PL3463777T3 (pl) * | 2016-05-27 | 2023-12-11 | Joy Global Underground Mining Llc | Urządzenie urabiające z elementami zużywalnymi |
-
1974
- 1974-05-14 ZA ZA00743063A patent/ZA743063B/xx unknown
-
1975
- 1975-05-13 GB GB20213/75A patent/GB1479374A/en not_active Expired
- 1975-05-14 BR BR3815/75D patent/BR7502992A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
ZA743063B (en) | 1975-12-31 |
AU8110775A (en) | 1976-11-18 |
GB1479374A (en) | 1977-07-13 |
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