FR1261091A - Trépan - Google Patents
TrépanInfo
- Publication number
- FR1261091A FR1261091A FR831268A FR831268A FR1261091A FR 1261091 A FR1261091 A FR 1261091A FR 831268 A FR831268 A FR 831268A FR 831268 A FR831268 A FR 831268A FR 1261091 A FR1261091 A FR 1261091A
- Authority
- FR
- France
- Prior art keywords
- trepan
- 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.)
- Expired
Links
- 241000425571 Trepanes Species 0.000 title 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
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
-
- 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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR831268A FR1261091A (fr) | 1960-06-27 | 1960-06-27 | Trépan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR831268A FR1261091A (fr) | 1960-06-27 | 1960-06-27 | Trépan |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1261091A true FR1261091A (fr) | 1961-05-12 |
Family
ID=8734307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR831268A Expired FR1261091A (fr) | 1960-06-27 | 1960-06-27 | Trépan |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1261091A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3152654A (en) * | 1962-05-31 | 1964-10-13 | Timken Roller Bearing Co | Drill bit and locking means |
-
1960
- 1960-06-27 FR FR831268A patent/FR1261091A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3152654A (en) * | 1962-05-31 | 1964-10-13 | Timken Roller Bearing Co | Drill bit and locking means |
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