DE9002460U1 - - Google Patents
Info
- Publication number
- DE9002460U1 DE9002460U1 DE9002460U DE9002460U DE9002460U1 DE 9002460 U1 DE9002460 U1 DE 9002460U1 DE 9002460 U DE9002460 U DE 9002460U DE 9002460 U DE9002460 U DE 9002460U DE 9002460 U1 DE9002460 U1 DE 9002460U1
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
- E21B10/40—Percussion drill bits with leading portion
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/58—Chisel-type inserts
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9002460U DE9002460U1 (es) | 1990-03-02 | 1990-03-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9002460U DE9002460U1 (es) | 1990-03-02 | 1990-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9002460U1 true DE9002460U1 (es) | 1990-05-03 |
Family
ID=6851549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9002460U Expired - Lifetime DE9002460U1 (es) | 1990-03-02 | 1990-03-02 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9002460U1 (es) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9206657U1 (de) * | 1992-05-15 | 1993-09-16 | Toepfer Rainer | Rotationswerkzeug mit Hartmetalleinsätzen |
| DE4236553A1 (de) * | 1992-10-29 | 1994-05-05 | Hawera Probst Kg Hartmetall | Gesteinsbohrer |
-
1990
- 1990-03-02 DE DE9002460U patent/DE9002460U1/de not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9206657U1 (de) * | 1992-05-15 | 1993-09-16 | Toepfer Rainer | Rotationswerkzeug mit Hartmetalleinsätzen |
| DE4236553A1 (de) * | 1992-10-29 | 1994-05-05 | Hawera Probst Kg Hartmetall | Gesteinsbohrer |
| US5403130A (en) * | 1992-10-29 | 1995-04-04 | Hawera Probst Gmbh & Co. | Rock drill |