DE289994C - - Google Patents
Info
- Publication number
- DE289994C DE289994C DENDAT289994D DE289994DA DE289994C DE 289994 C DE289994 C DE 289994C DE NDAT289994 D DENDAT289994 D DE NDAT289994D DE 289994D A DE289994D A DE 289994DA DE 289994 C DE289994 C DE 289994C
- Authority
- DE
- Germany
- Prior art keywords
- cutting edge
- shank
- shaft
- insert cutting
- insert
- 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
- 229910000997 High-speed steel Inorganic materials 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 238000004904 shortening Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000463 material Substances 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
- 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
-
- 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
- E21B17/22—Rods or pipes with helical structure
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)
- Earth Drilling (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE289994C true DE289994C (enrdf_load_stackoverflow) |
Family
ID=544985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT289994D Active DE289994C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE289994C (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE964311C (de) * | 1954-03-20 | 1957-05-23 | Wallram Hartmetall | Bohrwerkzeug mit durch Schaft an einem Bohrrohr oder einer Bohrstange befestigtem Bohrkopf |
-
0
- DE DENDAT289994D patent/DE289994C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE964311C (de) * | 1954-03-20 | 1957-05-23 | Wallram Hartmetall | Bohrwerkzeug mit durch Schaft an einem Bohrrohr oder einer Bohrstange befestigtem Bohrkopf |
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