BE375714A - - Google Patents
Info
- Publication number
- BE375714A BE375714A BE375714DA BE375714A BE 375714 A BE375714 A BE 375714A BE 375714D A BE375714D A BE 375714DA BE 375714 A BE375714 A BE 375714A
- Authority
- BE
- Belgium
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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
- E21B44/08—Automatic control of the tool feed in response to the amplitude of the movement of the percussion tool, e.g. jump or recoil
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)
- Earth Drilling (AREA)
- Percussive Tools And Related Accessories (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US457824A US1870389A (en) | 1930-05-31 | 1930-05-31 | Feeding device for percussive motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE375714A true BE375714A (de) |
Family
ID=23818204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE375714D BE375714A (de) | 1930-05-31 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1870389A (de) |
| BE (1) | BE375714A (de) |
| DE (1) | DE551158C (de) |
| FR (1) | FR707355A (de) |
-
0
- BE BE375714D patent/BE375714A/xx unknown
-
1930
- 1930-05-31 US US457824A patent/US1870389A/en not_active Expired - Lifetime
- 1930-12-10 FR FR707355D patent/FR707355A/fr not_active Expired
- 1930-12-17 DE DE1930551158D patent/DE551158C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE551158C (de) | 1932-05-27 |
| FR707355A (fr) | 1931-07-07 |
| US1870389A (en) | 1932-08-09 |