DD102768A1 - - Google Patents
Info
- Publication number
- DD102768A1 DD102768A1 DD169339A DD16933973A DD102768A1 DD 102768 A1 DD102768 A1 DD 102768A1 DD 169339 A DD169339 A DD 169339A DD 16933973 A DD16933973 A DD 16933973A DD 102768 A1 DD102768 A1 DD 102768A1
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
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)
- Percussive Tools And Related Accessories (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7201755841A SU479390A1 (ru) | 1972-03-10 | 1972-03-10 | Погружное гидроударное устройство |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD102768A1 true DD102768A1 (https=) | 1973-12-20 |
Family
ID=20505505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD169339A DD102768A1 (https=) | 1972-03-10 | 1973-03-09 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3848681A (https=) |
| CA (1) | CA978053A (https=) |
| DD (1) | DD102768A1 (https=) |
| DE (1) | DE2311008C3 (https=) |
| FR (1) | FR2175867B1 (https=) |
| GB (1) | GB1402082A (https=) |
| SU (1) | SU479390A1 (https=) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE277428C (https=) * | ||||
| DE137430C (https=) * | ||||
| US2108946A (en) * | 1933-09-23 | 1938-02-22 | Seifer Theo | Hydraulic boring mechanism |
| US2756966A (en) * | 1954-07-23 | 1956-07-31 | Bassinger Ross | Fluid actuated impact tool |
| US3744576A (en) * | 1971-02-03 | 1973-07-10 | B Sudnishnikov | Reversible percussion device |
-
1972
- 1972-03-10 SU SU7201755841A patent/SU479390A1/ru active
-
1973
- 1973-03-06 DE DE2311008A patent/DE2311008C3/de not_active Expired
- 1973-03-09 DD DD169339A patent/DD102768A1/xx unknown
- 1973-03-09 GB GB1150573A patent/GB1402082A/en not_active Expired
- 1973-03-09 FR FR7308556A patent/FR2175867B1/fr not_active Expired
- 1973-03-09 CA CA165,766A patent/CA978053A/en not_active Expired
- 1973-03-12 US US00340035A patent/US3848681A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA978053A (en) | 1975-11-18 |
| DE2311008B2 (de) | 1975-02-13 |
| DE2311008A1 (de) | 1973-10-31 |
| FR2175867B1 (https=) | 1976-11-05 |
| FR2175867A1 (https=) | 1973-10-26 |
| GB1402082A (en) | 1975-08-06 |
| DE2311008C3 (de) | 1975-09-25 |
| US3848681A (en) | 1974-11-19 |
| SU479390A1 (ru) | 1977-11-25 |