DD127539A1 - - Google Patents
Info
- Publication number
- DD127539A1 DD127539A1 DD194174A DD19417476A DD127539A1 DD 127539 A1 DD127539 A1 DD 127539A1 DD 194174 A DD194174 A DD 194174A DD 19417476 A DD19417476 A DD 19417476A DD 127539 A1 DD127539 A1 DD 127539A1
- Authority
- DD
- German Democratic Republic
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD194174A DD127539A1 (nl) | 1976-08-02 | 1976-08-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD194174A DD127539A1 (nl) | 1976-08-02 | 1976-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD127539A1 true DD127539A1 (nl) | 1977-09-28 |
Family
ID=5505334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD194174A DD127539A1 (nl) | 1976-08-02 | 1976-08-02 |
Country Status (1)
| Country | Link |
|---|---|
| DD (1) | DD127539A1 (nl) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0235581A1 (de) * | 1986-02-05 | 1987-09-09 | Geissler & Kuper GmbH Diamantwerkzeug-Wiederaufbereitung | Kupplung, insbesondere für Diamantbohrkrone mit Schaftrohr und Rohrgewindeanschluss |
| DE19630639A1 (de) * | 1996-07-30 | 1998-02-05 | Treitz Siegfried | Vorrichtung zum Bohren für den Bergbau |
-
1976
- 1976-08-02 DD DD194174A patent/DD127539A1/xx unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0235581A1 (de) * | 1986-02-05 | 1987-09-09 | Geissler & Kuper GmbH Diamantwerkzeug-Wiederaufbereitung | Kupplung, insbesondere für Diamantbohrkrone mit Schaftrohr und Rohrgewindeanschluss |
| DE19630639A1 (de) * | 1996-07-30 | 1998-02-05 | Treitz Siegfried | Vorrichtung zum Bohren für den Bergbau |
| DE19630639C2 (de) * | 1996-07-30 | 1998-09-03 | Siegfried Treitz | Vorrichtung zum Bohren für den Bergbau |