FI260474A - - Google Patents
Info
- Publication number
- FI260474A FI260474A FI2604/74A FI260474A FI260474A FI 260474 A FI260474 A FI 260474A FI 2604/74 A FI2604/74 A FI 2604/74A FI 260474 A FI260474 A FI 260474A FI 260474 A FI260474 A FI 260474A
- 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
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
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)
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39662273A | 1973-09-12 | 1973-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FI260474A true FI260474A (en) | 1975-03-13 |
Family
ID=23567984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI2604/74A FI260474A (en) | 1973-09-12 | 1974-09-05 |
Country Status (7)
| Country | Link |
|---|---|
| CA (1) | CA1031766A (en) |
| FI (1) | FI260474A (en) |
| FR (1) | FR2243323B1 (en) |
| GB (1) | GB1473938A (en) |
| NO (1) | NO743269L (en) |
| SE (1) | SE7411469L (en) |
| ZA (1) | ZA745188B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2755591C2 (en) * | 1977-12-14 | 1985-11-07 | SKF GmbH, 8720 Schweinfurt | Roller chisel with conical cutting rollers |
| CA2009987A1 (en) * | 1990-02-14 | 1991-08-14 | Kenneth M. White | Journal bearing type rock bit |
-
1974
- 1974-08-09 CA CA206,730A patent/CA1031766A/en not_active Expired
- 1974-08-13 ZA ZA00745188A patent/ZA745188B/en unknown
- 1974-08-28 GB GB3756974A patent/GB1473938A/en not_active Expired
- 1974-09-05 FI FI2604/74A patent/FI260474A/fi unknown
- 1974-09-10 FR FR7430564A patent/FR2243323B1/fr not_active Expired
- 1974-09-11 NO NO743269A patent/NO743269L/no unknown
- 1974-09-11 SE SE7411469A patent/SE7411469L/ unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2243323A1 (en) | 1975-04-04 |
| ZA745188B (en) | 1975-08-27 |
| AU7247874A (en) | 1976-02-19 |
| CA1031766A (en) | 1978-05-23 |
| SE7411469L (en) | 1975-03-13 |
| FR2243323B1 (en) | 1982-11-05 |
| GB1473938A (en) | 1977-05-18 |
| NO743269L (en) | 1975-04-07 |