BE355733A - - Google Patents
Info
- Publication number
- BE355733A BE355733A BE355733DA BE355733A BE 355733 A BE355733 A BE 355733A BE 355733D A BE355733D A BE 355733DA BE 355733 A BE355733 A BE 355733A
- Authority
- BE
- Belgium
- Prior art keywords
- grooves
- cylindrical
- foil
- hole
- axis
- Prior art date
Links
- 239000011888 foil Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 4
- 239000004575 stone Substances 0.000 description 7
- 238000004880 explosion Methods 0.000 description 4
- 239000002360 explosive Substances 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 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
- E21B10/40—Percussion drill bits with leading portion
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE355733A true BE355733A (cg-RX-API-DMAC7.html) |
Family
ID=29934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE355733D BE355733A (cg-RX-API-DMAC7.html) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE355733A (cg-RX-API-DMAC7.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2458669A1 (fr) * | 1979-04-02 | 1981-01-02 | Inst Gornogo Dela Sibirskogo O | Outil de forage pour machine servant a realiser des sondages par percussion |
-
0
- BE BE355733D patent/BE355733A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2458669A1 (fr) * | 1979-04-02 | 1981-01-02 | Inst Gornogo Dela Sibirskogo O | Outil de forage pour machine servant a realiser des sondages par percussion |
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