DE1918856C3 - - Google Patents
Info
- Publication number
- DE1918856C3 DE1918856C3 DE19691918856 DE1918856A DE1918856C3 DE 1918856 C3 DE1918856 C3 DE 1918856C3 DE 19691918856 DE19691918856 DE 19691918856 DE 1918856 A DE1918856 A DE 1918856A DE 1918856 C3 DE1918856 C3 DE 1918856C3
- Authority
- DE
- Germany
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
-
- 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
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/021—With a rotary table, i.e. a fixed rotary drive for a relatively advancing tool
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE713609 | 1968-04-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE1918856A1 DE1918856A1 (de) | 1969-10-30 |
| DE1918856B2 DE1918856B2 (de) | 1973-07-26 |
| DE1918856C3 true DE1918856C3 (US07943777-20110517-C00090.png) | 1974-02-21 |
Family
ID=3852738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691918856 Granted DE1918856B2 (de) | 1968-04-12 | 1969-04-14 | Verdrängungsbohrkopf |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE713609A (US07943777-20110517-C00090.png) |
| DE (1) | DE1918856B2 (US07943777-20110517-C00090.png) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2936060C2 (de) * | 1979-09-06 | 1986-11-06 | Fundex P.V.B.A., Zeebrugge | Erdbohrer und Bohrkopf dafür |
| CA1177059A (en) * | 1981-05-20 | 1984-10-30 | Valentin I. Feklin | Tool forming a hole in macroporous compressible soil and a method of forming a hole by the same tool |
| DE19702137A1 (de) * | 1997-01-22 | 1998-07-23 | Fundex N V | Erdverdrängungsbohrer |
-
1968
- 1968-04-12 BE BE713609D patent/BE713609A/xx unknown
-
1969
- 1969-04-14 DE DE19691918856 patent/DE1918856B2/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| BE713609A (US07943777-20110517-C00090.png) | 1968-08-16 |
| DE1918856B2 (de) | 1973-07-26 |
| DE1918856A1 (de) | 1969-10-30 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| E77 | Valid patent as to the heymanns-index 1977 |