FI751769A - - Google Patents
Info
- Publication number
- FI751769A FI751769A FI751769A FI751769A FI751769A FI 751769 A FI751769 A FI 751769A FI 751769 A FI751769 A FI 751769A FI 751769 A FI751769 A FI 751769A FI 751769 A FI751769 A FI 751769A
- Authority
- FI
- Finland
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
- E21B1/00—Percussion drilling
- E21B1/38—Hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Drilling And Boring (AREA)
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU2034933 | 1974-06-13 | ||
| SU2034935A SU554403A2 (ru) | 1974-06-13 | 1974-06-13 | Двухпоршневой перфоратор |
| SU2034935 | 1974-06-13 | ||
| SU2034933A SU554402A2 (ru) | 1974-06-13 | 1974-06-13 | Двухпоршневой перфоратор |
| SU7502108880A SU563490A2 (ru) | 1975-02-19 | 1975-02-19 | Двухпоршневой перфоратор |
| SU2108880 | 1975-02-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI751769A true FI751769A (US07321065-20080122-C00160.png) | 1975-12-14 |
| FI63469B FI63469B (fi) | 1983-02-28 |
| FI63469C FI63469C (fi) | 1983-06-10 |
Family
ID=27356275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI751769A FI63469C (fi) | 1974-06-13 | 1975-06-13 | Bergborr med dubbelkolv |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS51151201A (US07321065-20080122-C00160.png) |
| DE (1) | DE2526511C3 (US07321065-20080122-C00160.png) |
| FI (1) | FI63469C (US07321065-20080122-C00160.png) |
| SE (1) | SE410209B (US07321065-20080122-C00160.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7464635B2 (en) | 2001-11-07 | 2008-12-16 | Sandvik Mining And Construction Oy | Percussion device with a control valve for two alternately striking pistons |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8207351L (sv) * | 1982-12-22 | 1984-06-23 | Peter Johan Torsten Tornqvist | Sett och anordning for att utbalansera en fram och atergaende rorelse |
| FI78158C (fi) * | 1986-05-09 | 1989-06-12 | Tampella Oy Ab | Anordning vid en borrmaskin foer lagring av ett rotationsstycke. |
| DE3910515A1 (de) * | 1989-04-01 | 1990-10-04 | Tracto Technik | Selbstantreibbare rammbohrvorrichtung, insbesondere zur herstellung von rohrfoermigen erdbohrungen |
-
1975
- 1975-06-12 SE SE7506740A patent/SE410209B/sv not_active IP Right Cessation
- 1975-06-13 JP JP50070980A patent/JPS51151201A/ja active Granted
- 1975-06-13 DE DE2526511A patent/DE2526511C3/de not_active Expired
- 1975-06-13 FI FI751769A patent/FI63469C/fi not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7464635B2 (en) | 2001-11-07 | 2008-12-16 | Sandvik Mining And Construction Oy | Percussion device with a control valve for two alternately striking pistons |
Also Published As
| Publication number | Publication date |
|---|---|
| SE410209B (sv) | 1979-10-01 |
| DE2526511B2 (de) | 1979-09-20 |
| SE7506740L (sv) | 1975-12-15 |
| DE2526511C3 (de) | 1980-06-04 |
| FI63469C (fi) | 1983-06-10 |
| FI63469B (fi) | 1983-02-28 |
| JPS559997B2 (US07321065-20080122-C00160.png) | 1980-03-13 |
| DE2526511A1 (de) | 1975-12-18 |
| JPS51151201A (en) | 1976-12-25 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: INSTITUT GORNOGO DELA SIBIRSKOGO |