FR332231A - Coupling device for twist drills - Google Patents
Coupling device for twist drillsInfo
- Publication number
- FR332231A FR332231A FR332231A FR332231DA FR332231A FR 332231 A FR332231 A FR 332231A FR 332231 A FR332231 A FR 332231A FR 332231D A FR332231D A FR 332231DA FR 332231 A FR332231 A FR 332231A
- Authority
- FR
- France
- Prior art keywords
- coupling device
- twist drills
- drills
- twist
- coupling
- 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
- 230000008878 coupling Effects 0.000 title 1
- 238000010168 coupling process Methods 0.000 title 1
- 238000005859 coupling reaction Methods 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
- 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
-
- 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
- E21B17/22—Rods or pipes with helical structure
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR332231T | 1903-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR332231A true FR332231A (en) | 1903-10-19 |
Family
ID=1381895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR332231A Expired FR332231A (en) | 1903-05-19 | 1903-05-19 | Coupling device for twist drills |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR332231A (en) |
-
1903
- 1903-05-19 FR FR332231A patent/FR332231A/en not_active Expired
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