ATE95889T1 - CUTTING BIT FOR DRILL TUBE WITH SIMPLE INTERCHANGEABLE TEETH. - Google Patents
CUTTING BIT FOR DRILL TUBE WITH SIMPLE INTERCHANGEABLE TEETH.Info
- Publication number
- ATE95889T1 ATE95889T1 AT90125346T AT90125346T ATE95889T1 AT E95889 T1 ATE95889 T1 AT E95889T1 AT 90125346 T AT90125346 T AT 90125346T AT 90125346 T AT90125346 T AT 90125346T AT E95889 T1 ATE95889 T1 AT E95889T1
- Authority
- AT
- Austria
- Prior art keywords
- teeth
- cutting bit
- drill tube
- cutting
- recesses
- Prior art date
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
- E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
- E21B10/485—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type with inserts in form of chisels, blades or the like
-
- 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
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Drilling Tools (AREA)
- Sampling And Sample Adjustment (AREA)
- Component Parts Of Construction Machinery (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The cutting head for use in sinking cased boreholes has a body in the form of a cylindrical ring that makes an extension to the drill pipe. The cutting head has teeth uniformly spaced around its periphery. The teeth (4) are indirectly joined to the body by sleeves welded into, and completely filling, recesses in the body. The sleeves have recesses for the fitting and securing of feet (5) formed on the teeth. Several features and variants of the cutting-head design are claimed.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4002907A DE4002907A1 (en) | 1990-02-01 | 1990-02-01 | Cylindrical cutting head forms extension of borehole drill pipe |
EP90125346A EP0439821B1 (en) | 1990-02-01 | 1990-12-22 | Cutting crown for casings with easily exchangeable teeth |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE95889T1 true ATE95889T1 (en) | 1993-10-15 |
Family
ID=6399180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT90125346T ATE95889T1 (en) | 1990-02-01 | 1990-12-22 | CUTTING BIT FOR DRILL TUBE WITH SIMPLE INTERCHANGEABLE TEETH. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0439821B1 (en) |
AT (1) | ATE95889T1 (en) |
DE (2) | DE4002907A1 (en) |
DK (1) | DK0439821T3 (en) |
ES (1) | ES2047236T3 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9206657U1 (en) * | 1992-05-15 | 1993-09-16 | Toepfer Rainer | Rotary tool with carbide inserts |
DE20100550U1 (en) | 2001-01-12 | 2001-04-19 | Bauer Spezialtiefbau | Cutting tooth arrangement |
DE10205644B4 (en) * | 2002-02-12 | 2006-03-02 | Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg | drilling |
DE10205643C1 (en) | 2002-02-12 | 2003-10-16 | Betek Bergbau & Hartmetall | Drill bit with detachable cutting teeth |
JP4211541B2 (en) | 2003-09-01 | 2009-01-21 | ソニー株式会社 | Recording control system and recording reservation processing method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE537686C (en) * | 1930-08-14 | 1931-11-09 | Haniel & Lueg Gmbh | Rotary drill bit with adjustable knives |
US3072205A (en) * | 1960-02-26 | 1963-01-08 | Salem Tool Co | Auger reaming head |
US3749449A (en) * | 1971-10-13 | 1973-07-31 | Cincinnati Mine Machinery Co | Means for removably affixing cutter bit and lug assemblies to driven elements of a mining machine or the like |
DE2349711A1 (en) * | 1972-10-12 | 1974-05-02 | Austin Hoy & Co Ltd | PICK HOLDER FOR CUTTER FOR MINERAL MATERIALS |
DE2539707A1 (en) * | 1975-09-06 | 1977-03-17 | Marks & Co | Road surface cutter roller replaceable tooth - has conical bottom and constant top sections fitting corresponding roller recess |
DE3637456A1 (en) * | 1986-06-09 | 1988-05-11 | Erich Wezel | Hollow drill bit |
GB8622605D0 (en) * | 1986-09-19 | 1986-10-22 | Wimet Mining Ltd | Mineral cutting |
-
1990
- 1990-02-01 DE DE4002907A patent/DE4002907A1/en active Granted
- 1990-12-22 ES ES90125346T patent/ES2047236T3/en not_active Expired - Lifetime
- 1990-12-22 AT AT90125346T patent/ATE95889T1/en active
- 1990-12-22 DE DE90125346T patent/DE59003087D1/en not_active Expired - Fee Related
- 1990-12-22 EP EP90125346A patent/EP0439821B1/en not_active Expired - Lifetime
- 1990-12-22 DK DK90125346.8T patent/DK0439821T3/en active
Also Published As
Publication number | Publication date |
---|---|
DE59003087D1 (en) | 1993-11-18 |
DK0439821T3 (en) | 1994-03-07 |
ES2047236T3 (en) | 1994-02-16 |
EP0439821B1 (en) | 1993-10-13 |
DE4002907A1 (en) | 1991-08-08 |
EP0439821A1 (en) | 1991-08-07 |
DE4002907C2 (en) | 1992-01-02 |
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