FR2346110B1 - - Google Patents
Info
- Publication number
- FR2346110B1 FR2346110B1 FR7709699A FR7709699A FR2346110B1 FR 2346110 B1 FR2346110 B1 FR 2346110B1 FR 7709699 A FR7709699 A FR 7709699A FR 7709699 A FR7709699 A FR 7709699A FR 2346110 B1 FR2346110 B1 FR 2346110B1
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/02—Percussive tool bits
-
- 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
-
- 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
- E21B17/042—Threaded
- E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods
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)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA249,433A CA1038856A (en) | 1976-04-02 | 1976-04-02 | Percussion drill bit |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2346110A1 FR2346110A1 (fr) | 1977-10-28 |
FR2346110B1 true FR2346110B1 (zh) | 1981-11-20 |
Family
ID=4105622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7709699A Granted FR2346110A1 (fr) | 1976-04-02 | 1977-03-31 | Fleuret pour le forage par percussion |
Country Status (4)
Country | Link |
---|---|
CA (1) | CA1038856A (zh) |
FI (1) | FI770994A (zh) |
FR (1) | FR2346110A1 (zh) |
NO (1) | NO771177L (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH670418A5 (zh) * | 1986-03-24 | 1989-06-15 | Zepf Hans Rudolf | |
CN102635315B (zh) * | 2012-04-27 | 2014-05-07 | 中国地质大学(武汉) | 一种带修孔钻头的接头 |
-
1976
- 1976-04-02 CA CA249,433A patent/CA1038856A/en not_active Expired
-
1977
- 1977-03-30 FI FI770994A patent/FI770994A/fi not_active Application Discontinuation
- 1977-03-31 FR FR7709699A patent/FR2346110A1/fr active Granted
- 1977-04-01 NO NO771177A patent/NO771177L/no unknown
Also Published As
Publication number | Publication date |
---|---|
FR2346110A1 (fr) | 1977-10-28 |
FI770994A (zh) | 1977-10-03 |
NO771177L (no) | 1977-10-04 |
CA1038856A (en) | 1978-09-19 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |