DE227329C - - Google Patents
Info
- Publication number
- DE227329C DE227329C DENDAT227329D DE227329DA DE227329C DE 227329 C DE227329 C DE 227329C DE NDAT227329 D DENDAT227329 D DE NDAT227329D DE 227329D A DE227329D A DE 227329DA DE 227329 C DE227329 C DE 227329C
- Authority
- DE
- Germany
- Prior art keywords
- jacket
- impact
- impact body
- slide
- cross
- 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 2
- 208000028867 ischemia Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1053—Making by using boring or cutting machines for making a slit along the perimeter of the tunnel profile, the remaining core being removed subsequently, e.g. by blasting
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE227329C true DE227329C (US07413550-20080819-C00001.png) |
Family
ID=487795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT227329D Active DE227329C (US07413550-20080819-C00001.png) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE227329C (US07413550-20080819-C00001.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11572139B2 (en) | 2018-09-14 | 2023-02-07 | Riedel Communications International GmbH | Apparatus for sensing movement of an object relative to a fluid |
-
0
- DE DENDAT227329D patent/DE227329C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11572139B2 (en) | 2018-09-14 | 2023-02-07 | Riedel Communications International GmbH | Apparatus for sensing movement of an object relative to a fluid |
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