FR2443560B1 - - Google Patents
Info
- Publication number
- FR2443560B1 FR2443560B1 FR7924379A FR7924379A FR2443560B1 FR 2443560 B1 FR2443560 B1 FR 2443560B1 FR 7924379 A FR7924379 A FR 7924379A FR 7924379 A FR7924379 A FR 7924379A FR 2443560 B1 FR2443560 B1 FR 2443560B1
- Authority
- FR
- France
- 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
- E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
- E21B10/5673—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts having a non planar or non circular cutting face
-
- 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
- E21B10/58—Chisel-type inserts
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US94786578A | 1978-10-02 | 1978-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2443560A1 FR2443560A1 (fr) | 1980-07-04 |
| FR2443560B1 true FR2443560B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1984-07-20 |
Family
ID=25486908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7924379A Granted FR2443560A1 (fr) | 1978-10-02 | 1979-10-01 | Lame perfectionnee pour trepans de forage |
Country Status (12)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3039632C2 (de) * | 1980-10-21 | 1982-12-16 | Christensen, Inc., 84115 Salt Lake City, Utah | Drehborhmeißel für Tiefbohrungen |
| DE3114749C2 (de) * | 1981-04-11 | 1983-10-27 | Christensen, Inc., 84115 Salt Lake City, Utah | Keilförmiges Schneidglied für Drehbohrmeißel zum Tiefbohren |
| GB2138864B (en) * | 1983-04-28 | 1986-07-30 | Sumitomo Metal Mining Co | Roller drill bits |
| US4533004A (en) * | 1984-01-16 | 1985-08-06 | Cdp, Ltd. | Self sharpening drag bit for sub-surface formation drilling |
| US4669556A (en) * | 1984-01-31 | 1987-06-02 | Nl Industries, Inc. | Drill bit and cutter therefor |
| GB2181472A (en) * | 1985-08-22 | 1987-04-23 | Anderson Strathclyde Plc | Cutter tools and tip inserts therefor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3136615A (en) * | 1960-10-03 | 1964-06-09 | Gen Electric | Compact of abrasive crystalline material with boron carbide bonding medium |
| US3141746A (en) * | 1960-10-03 | 1964-07-21 | Gen Electric | Diamond compact abrasive |
| US3233988A (en) * | 1964-05-19 | 1966-02-08 | Gen Electric | Cubic boron nitride compact and method for its production |
| US3767371A (en) * | 1971-07-01 | 1973-10-23 | Gen Electric | Cubic boron nitride/sintered carbide abrasive bodies |
| US3745623A (en) * | 1971-12-27 | 1973-07-17 | Gen Electric | Diamond tools for machining |
| US3745489A (en) * | 1972-05-01 | 1973-07-10 | Stanford Research Inst | Microwave and uhf filters using discrete hairpin resonators |
| ZA782286B (en) * | 1978-04-21 | 1979-10-31 | Christensen Inc | Abrasive bodies |
-
1979
- 1979-08-07 ZA ZA00794097A patent/ZA794097B/xx unknown
- 1979-08-13 IL IL58031A patent/IL58031A/xx unknown
- 1979-08-21 GB GB7929100A patent/GB2032979B/en not_active Expired
- 1979-08-31 NL NL7906559A patent/NL7906559A/nl not_active Application Discontinuation
- 1979-09-04 JP JP11346879A patent/JPS5549490A/ja active Granted
- 1979-09-24 DE DE19792938524 patent/DE2938524A1/de active Granted
- 1979-09-28 IT IT26090/79A patent/IT1163718B/it active
- 1979-09-28 ES ES1979257023U patent/ES257023Y/es not_active Expired
- 1979-10-01 SE SE7908122A patent/SE7908122L/ unknown
- 1979-10-01 CH CH880979A patent/CH646227A5/de not_active IP Right Cessation
- 1979-10-01 FR FR7924379A patent/FR2443560A1/fr active Granted
- 1979-10-01 BE BE0/197412A patent/BE879116A/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH646227A5 (de) | 1984-11-15 |
| IT7926090A0 (it) | 1979-09-28 |
| GB2032979A (en) | 1980-05-14 |
| JPS6238517B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-08-18 |
| DE2938524C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-12-19 |
| JPS5549490A (en) | 1980-04-09 |
| ZA794097B (en) | 1980-11-26 |
| IT1163718B (it) | 1987-04-08 |
| ES257023Y (es) | 1982-04-16 |
| SE7908122L (sv) | 1980-04-03 |
| IL58031A (en) | 1982-08-31 |
| NL7906559A (nl) | 1980-04-08 |
| DE2938524A1 (de) | 1980-04-10 |
| FR2443560A1 (fr) | 1980-07-04 |
| GB2032979B (en) | 1982-09-08 |
| IL58031A0 (en) | 1979-12-30 |
| BE879116A (fr) | 1980-02-01 |
| ES257023U (es) | 1981-10-16 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |