FR799510A - Foret à mèche amovible - Google Patents
Foret à mèche amovibleInfo
- Publication number
- FR799510A FR799510A FR799510DA FR799510A FR 799510 A FR799510 A FR 799510A FR 799510D A FR799510D A FR 799510DA FR 799510 A FR799510 A FR 799510A
- Authority
- FR
- France
- Prior art keywords
- bit drill
- removable bit
- removable
- drill
- bit
- 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
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
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)
- Drilling Tools (AREA)
- Percussive Tools And Related Accessories (AREA)
- Crushing And Pulverization Processes (AREA)
- Emergency Lowering Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA452694X | 1935-07-17 | ||
US33350A US2030530A (en) | 1935-07-17 | 1935-07-26 | Drill |
Publications (1)
Publication Number | Publication Date |
---|---|
FR799510A true FR799510A (fr) | 1936-06-15 |
Family
ID=21869896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR799510D Expired FR799510A (fr) | 1935-07-17 | 1935-12-11 | Foret à mèche amovible |
Country Status (3)
Country | Link |
---|---|
US (1) | US2030530A (fr) |
FR (1) | FR799510A (fr) |
GB (1) | GB452694A (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4190128A (en) * | 1978-12-21 | 1980-02-26 | Fansteel Inc. | Roof drill bit with hexagonal body portion |
-
1935
- 1935-07-26 US US33350A patent/US2030530A/en not_active Expired - Lifetime
- 1935-12-10 GB GB34151/35A patent/GB452694A/en not_active Expired
- 1935-12-11 FR FR799510D patent/FR799510A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB452694A (en) | 1936-08-27 |
US2030530A (en) | 1936-02-11 |
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