NL7102148A - - Google Patents
Info
- Publication number
- NL7102148A NL7102148A NL7102148A NL7102148A NL7102148A NL 7102148 A NL7102148 A NL 7102148A NL 7102148 A NL7102148 A NL 7102148A NL 7102148 A NL7102148 A NL 7102148A NL 7102148 A NL7102148 A NL 7102148A
- Authority
- NL
- Netherlands
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/13—Foundation slots or slits; Implements for making these slots or slits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
-
- 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
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/001—Drilling a non circular hole
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Paleontology (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9254570 | 1970-09-19 | ||
| JP9254670U JPS4938330Y1 (en) | 1970-09-19 | 1970-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7102148A true NL7102148A (en) | 1972-03-21 |
Family
ID=26433949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7102148A NL7102148A (en) | 1970-09-19 | 1971-02-18 |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT302910B (en) |
| BE (1) | BE762120A (en) |
| CA (1) | CA919196A (en) |
| CH (1) | CH532168A (en) |
| FR (1) | FR2105794A5 (en) |
| NL (1) | NL7102148A (en) |
| SE (1) | SE389698B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2355155A1 (en) * | 1976-06-18 | 1978-01-13 | Coyne & Bellier | METHOD AND DEVICE FOR PERFORMING DEEP DRILLING |
| DE3911624A1 (en) * | 1989-04-09 | 1990-10-11 | Delmag Maschinenfabrik | Tool for digging and undercutting slit trench - has cutting tool mounted on links pivoted to lower end of fixed frame |
| EP0685603B1 (en) * | 1993-12-10 | 2002-05-02 | Chemical Grouting Company Ltd. | Multi-shaft excavating device |
| CN111827391B (en) * | 2020-07-20 | 2022-09-09 | 安徽腾兴工程设备制造有限公司 | Multilayer composite drill bit assembly for ditching operation |
-
1970
- 1970-12-29 CA CA101582A patent/CA919196A/en not_active Expired
-
1971
- 1971-01-08 CH CH23471A patent/CH532168A/en not_active IP Right Cessation
- 1971-01-12 SE SE27171A patent/SE389698B/en unknown
- 1971-01-27 BE BE762120A patent/BE762120A/en not_active IP Right Cessation
- 1971-02-04 AT AT93371A patent/AT302910B/en not_active IP Right Cessation
- 1971-02-18 NL NL7102148A patent/NL7102148A/xx unknown
- 1971-06-29 FR FR7123701A patent/FR2105794A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH532168A (en) | 1972-12-31 |
| AT302910B (en) | 1972-11-10 |
| FR2105794A5 (en) | 1972-04-28 |
| BE762120A (en) | 1971-07-01 |
| CA919196A (en) | 1973-01-16 |
| SE389698B (en) | 1976-11-15 |