DE245263C - - Google Patents
Info
- Publication number
- DE245263C DE245263C DENDAT245263D DE245263DA DE245263C DE 245263 C DE245263 C DE 245263C DE NDAT245263 D DENDAT245263 D DE NDAT245263D DE 245263D A DE245263D A DE 245263DA DE 245263 C DE245263 C DE 245263C
- Authority
- DE
- Germany
- Prior art keywords
- piston
- tool holder
- rotated
- tool
- hammer
- Prior art date
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 230000002688 persistence Effects 0.000 claims 1
- 241000131971 Bradyrhizobiaceae Species 0.000 description 1
- 208000001848 dysentery Diseases 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
- E21B6/00—Drives for drilling with combined rotary and percussive action
- E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Percussive Tools And Related Accessories (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE245263C true DE245263C (enrdf_load_stackoverflow) |
Family
ID=504235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT245263D Active DE245263C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE245263C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT245263D patent/DE245263C/de active Active
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