DE8816794U1 - - Google Patents
Info
- Publication number
- DE8816794U1 DE8816794U1 DE8816794U DE8816794U DE8816794U1 DE 8816794 U1 DE8816794 U1 DE 8816794U1 DE 8816794 U DE8816794 U DE 8816794U DE 8816794 U DE8816794 U DE 8816794U DE 8816794 U1 DE8816794 U1 DE 8816794U1
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0018—Drills for enlarging a hole
- B23B51/0027—Drills for enlarging a hole by tool swivelling
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/24—Guiding or centralising devices for drilling rods or pipes
-
- 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
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
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)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19883802421 DE3802421A1 (de) | 1988-01-28 | 1988-01-28 | Bohrvorrichtung zur herstellung von bohrloechern mit hinterschneidung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE8816794U1 true DE8816794U1 (fr) | 1990-08-02 |
Family
ID=6346125
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8816794U Expired - Lifetime DE8816794U1 (fr) | 1988-01-28 | 1988-01-28 | |
| DE19883802421 Withdrawn DE3802421A1 (de) | 1988-01-28 | 1988-01-28 | Bohrvorrichtung zur herstellung von bohrloechern mit hinterschneidung |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19883802421 Withdrawn DE3802421A1 (de) | 1988-01-28 | 1988-01-28 | Bohrvorrichtung zur herstellung von bohrloechern mit hinterschneidung |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE8816794U1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3014388A1 (de) * | 1980-04-15 | 1981-10-22 | Artur Dr.H.C. 7244 Waldachtal Fischer | Zur herstellung von bohrloechern mit hinterschneidungen bestimmte bohreinheit |
| DE3027408C2 (de) * | 1980-07-19 | 1984-02-23 | Artur Dr.H.C. 7244 Waldachtal Fischer | Bohrvorrichtung zur Herstellung von Bohrlöchern mit Hinterschneidung |
| FR2521903B1 (fr) * | 1982-02-23 | 1986-03-21 | Simat | Procede et dispositif permettant de realiser une fixation ou un scellement de securite absolue par forage de trou du type cylindrique/conique |
| DE3617932A1 (de) * | 1986-04-09 | 1987-10-22 | Hawera Probst Kg Hartmetall | Bohrvorrichtung zur herstellung von bohrloechern mit hinterschneidung |
-
1988
- 1988-01-28 DE DE8816794U patent/DE8816794U1/de not_active Expired - Lifetime
- 1988-01-28 DE DE19883802421 patent/DE3802421A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE3802421A1 (de) | 1989-08-10 |