DE151171C - - Google Patents
Info
- Publication number
- DE151171C DE151171C DENDAT151171D DE151171DA DE151171C DE 151171 C DE151171 C DE 151171C DE NDAT151171 D DENDAT151171 D DE NDAT151171D DE 151171D A DE151171D A DE 151171DA DE 151171 C DE151171 C DE 151171C
- Authority
- DE
- Germany
- Prior art keywords
- cutting edges
- cutting
- radial
- cutting edge
- central
- Prior art date
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 claims 2
- 230000000149 penetrating effect Effects 0.000 claims 2
- 239000011435 rock Substances 0.000 claims 2
- 239000003245 coal Substances 0.000 claims 1
- 230000035515 penetration Effects 0.000 claims 1
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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
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)
- Earth Drilling (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
DE151171C true DE151171C (hu) |
Family
ID=418017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT151171D Active DE151171C (hu) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE151171C (hu) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538442A1 (fr) * | 1982-12-23 | 1984-06-29 | Charbonnages De France | Taillant pour foration rotative assistee par jet |
DE3707798A1 (de) * | 1987-03-11 | 1988-09-22 | Hawera Probst Kg Hartmetall | Gesteinsbohrer |
US5918105A (en) * | 1994-12-12 | 1999-06-29 | Black & Decker Inc. | Cutting tools for drilling concrete, aggregate, masonry or the like materials |
US6174111B1 (en) | 1994-12-12 | 2001-01-16 | Black & Decker Inc. | Cutting tools for drilling concrete, aggregate, masonry or the like materials |
-
0
- DE DENDAT151171D patent/DE151171C/de active Active
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538442A1 (fr) * | 1982-12-23 | 1984-06-29 | Charbonnages De France | Taillant pour foration rotative assistee par jet |
EP0114016A1 (fr) * | 1982-12-23 | 1984-07-25 | Etablissement public dit: CHARBONNAGES DE FRANCE | Taillant pour foration rotative assistée par jet |
US4535853A (en) * | 1982-12-23 | 1985-08-20 | Charbonnages De France | Drill bit for jet assisted rotary drilling |
DE3707798A1 (de) * | 1987-03-11 | 1988-09-22 | Hawera Probst Kg Hartmetall | Gesteinsbohrer |
US4889200A (en) * | 1987-03-11 | 1989-12-26 | Hawera Probst Gmbh+Co. | Rock drill |
US5918105A (en) * | 1994-12-12 | 1999-06-29 | Black & Decker Inc. | Cutting tools for drilling concrete, aggregate, masonry or the like materials |
US6174111B1 (en) | 1994-12-12 | 2001-01-16 | Black & Decker Inc. | Cutting tools for drilling concrete, aggregate, masonry or the like materials |
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