JPS4920716A - - Google Patents
Info
- Publication number
- JPS4920716A JPS4920716A JP48044007A JP4400773A JPS4920716A JP S4920716 A JPS4920716 A JP S4920716A JP 48044007 A JP48044007 A JP 48044007A JP 4400773 A JP4400773 A JP 4400773A JP S4920716 A JPS4920716 A JP S4920716A
- Authority
- JP
- Japan
- 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.)
- Granted
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
- 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)
- Earth Drilling (AREA)
- Joints With Sleeves (AREA)
- Gripping On Spindles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2218944A DE2218944A1 (de) | 1972-04-19 | 1972-04-19 | Innenlaschenverbindung fuer bohrrohre |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4920716A true JPS4920716A (it) | 1974-02-23 |
| JPS5616278B2 JPS5616278B2 (it) | 1981-04-15 |
Family
ID=5842465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4400773A Expired JPS5616278B2 (it) | 1972-04-19 | 1973-04-18 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5616278B2 (it) |
| DE (1) | DE2218944A1 (it) |
| FR (1) | FR2180627A1 (it) |
| RO (1) | RO64279A (it) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52131258A (en) * | 1976-04-27 | 1977-11-04 | Sanki Tetsukou Kk | Process of screen |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT346792B (de) * | 1977-04-19 | 1978-11-27 | Aufschlaeger Kg Ferd | Rohrverbindung, insbesondere fuer bohrrohre |
| JPS6039185U (ja) * | 1983-08-23 | 1985-03-18 | 株式会社 日本コインコ | 硬貨選別機の硬貨受入れ口 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4526175Y1 (it) * | 1966-03-10 | 1970-10-13 |
-
1972
- 1972-04-19 DE DE2218944A patent/DE2218944A1/de active Pending
- 1972-05-26 FR FR7218909A patent/FR2180627A1/fr active Granted
-
1973
- 1973-04-17 RO RO7374507A patent/RO64279A/ro unknown
- 1973-04-18 JP JP4400773A patent/JPS5616278B2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4526175Y1 (it) * | 1966-03-10 | 1970-10-13 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52131258A (en) * | 1976-04-27 | 1977-11-04 | Sanki Tetsukou Kk | Process of screen |
| JPS569383B2 (it) * | 1976-04-27 | 1981-02-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2180627A1 (en) | 1973-11-30 |
| JPS5616278B2 (it) | 1981-04-15 |
| RO64279A (fr) | 1979-03-15 |
| FR2180627B1 (it) | 1976-08-06 |
| DE2218944A1 (de) | 1973-10-31 |