BE375293A - - Google Patents
Info
- Publication number
- BE375293A BE375293A BE375293DA BE375293A BE 375293 A BE375293 A BE 375293A BE 375293D A BE375293D A BE 375293DA BE 375293 A BE375293 A BE 375293A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US464210A US1844874A (en) | 1930-06-27 | 1930-06-27 | Feeding device for percussive motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE375293A true BE375293A (xx) |
Family
ID=23842977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE375293D BE375293A (xx) | 1930-06-27 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1844874A (xx) |
| BE (1) | BE375293A (xx) |
| DE (1) | DE549638C (xx) |
| FR (1) | FR706622A (xx) |
| GB (1) | GB369961A (xx) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2693733A (en) * | 1950-02-09 | 1954-11-09 | Joy Mfg Co | Power hammer for mechanical tamping |
| US4332420A (en) * | 1980-01-11 | 1982-06-01 | Coski William D | Reciprocably supported dual drive member and features thereof |
| EP0111477A1 (en) * | 1982-05-19 | 1984-06-27 | COSKI, William David | Reciprocably supported dual-drive member and features |
-
0
- BE BE375293D patent/BE375293A/xx unknown
-
1930
- 1930-06-27 US US464210A patent/US1844874A/en not_active Expired - Lifetime
- 1930-11-20 GB GB35024/30D patent/GB369961A/en not_active Expired
- 1930-11-25 DE DE1930549638D patent/DE549638C/de not_active Expired
- 1930-11-27 FR FR706622D patent/FR706622A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1844874A (en) | 1932-02-09 |
| GB369961A (en) | 1932-03-21 |
| FR706622A (fr) | 1931-06-27 |
| DE549638C (de) | 1932-04-29 |