NO870356D0 - Borkrone. - Google Patents
Borkrone.Info
- Publication number
- NO870356D0 NO870356D0 NO87870356A NO870356A NO870356D0 NO 870356 D0 NO870356 D0 NO 870356D0 NO 87870356 A NO87870356 A NO 87870356A NO 870356 A NO870356 A NO 870356A NO 870356 D0 NO870356 D0 NO 870356D0
- Authority
- NO
- Norway
- Prior art keywords
- bit
- Prior art date
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
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA86769 | 1986-02-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
NO870356D0 true NO870356D0 (no) | 1987-01-28 |
NO870356L NO870356L (no) | 1987-08-04 |
Family
ID=25578265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO87870356A NO870356L (no) | 1986-02-03 | 1987-01-28 | Borkrone. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0233037A3 (no) |
AU (1) | AU6822087A (no) |
FI (1) | FI870454A (no) |
IE (1) | IE870259L (no) |
NO (1) | NO870356L (no) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2434086B1 (en) * | 2010-09-22 | 2013-05-15 | Sandvik Intellectual Property AB | A rock drill bit and a drilling assembly for percussive rock drilling |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE249360C (no) * | ||||
US1388490A (en) * | 1920-09-18 | 1921-08-23 | John R Suman | Rotary earth-boring drill |
US4085809A (en) * | 1977-01-10 | 1978-04-25 | Robert Lovell | Reconditionable drill bit assembly |
-
1987
- 1987-01-28 NO NO87870356A patent/NO870356L/no unknown
- 1987-02-02 IE IE870259A patent/IE870259L/xx unknown
- 1987-02-02 FI FI870454A patent/FI870454A/fi not_active Application Discontinuation
- 1987-02-02 AU AU68220/87A patent/AU6822087A/en not_active Abandoned
- 1987-02-03 EP EP87300927A patent/EP0233037A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
NO870356L (no) | 1987-08-04 |
FI870454A0 (fi) | 1987-02-02 |
EP0233037A3 (en) | 1988-09-14 |
EP0233037A2 (en) | 1987-08-19 |
AU6822087A (en) | 1988-08-04 |
IE870259L (en) | 1987-08-03 |
FI870454A (fi) | 1987-08-04 |
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