HU190481B - Double-walled boring bar with bolted joint - Google Patents
Double-walled boring bar with bolted joint Download PDFInfo
- Publication number
- HU190481B HU190481B HU412982A HU412982A HU190481B HU 190481 B HU190481 B HU 190481B HU 412982 A HU412982 A HU 412982A HU 412982 A HU412982 A HU 412982A HU 190481 B HU190481 B HU 190481B
- Authority
- HU
- Hungary
- Prior art keywords
- tube
- outer tube
- inner tube
- double
- connector
- Prior art date
Links
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 239000003599 detergent Substances 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD23608681A DD217682A3 (de) | 1981-12-22 | 1981-12-22 | Doppelrohrbohrgestaenge mit gewindeverbindung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HU190481B true HU190481B (en) | 1986-09-29 |
Family
ID=5535678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HU412982A HU190481B (en) | 1981-12-22 | 1982-12-22 | Double-walled boring bar with bolted joint |
Country Status (3)
| Country | Link |
|---|---|
| CS (1) | CS258407B1 (cs) |
| DD (1) | DD217682A3 (cs) |
| HU (1) | HU190481B (cs) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19718897A1 (de) * | 1997-05-03 | 1998-11-05 | Pumpenboese Stahl Gmbh & Co Kg | Doppelwandgestänge für das Herstellen von geologischen Bohrungen |
-
1981
- 1981-12-22 DD DD23608681A patent/DD217682A3/de not_active IP Right Cessation
-
1982
- 1982-11-18 CS CS828210A patent/CS258407B1/cs unknown
- 1982-12-22 HU HU412982A patent/HU190481B/hu unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS258407B1 (en) | 1988-08-16 |
| CS821082A1 (en) | 1985-06-13 |
| DD217682A3 (de) | 1985-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| HU90 | Patent valid on 900628 |