GR1002777B - Drilling pipes with female coupling on either side, method of joining thereof - Google Patents
Drilling pipes with female coupling on either side, method of joining thereofInfo
- Publication number
- GR1002777B GR1002777B GR960100448A GR960100448A GR1002777B GR 1002777 B GR1002777 B GR 1002777B GR 960100448 A GR960100448 A GR 960100448A GR 960100448 A GR960100448 A GR 960100448A GR 1002777 B GR1002777 B GR 1002777B
- Authority
- GR
- Greece
- Prior art keywords
- joining
- pipes
- female coupling
- internal
- drilling pipes
- Prior art date
Links
Abstract
The invention refers to drilling pipes (for other uses as well) characterized by the female ends on either side coupled with the use of an internal intemediary driving coupling element inserted in the the female ends of the joined pipes creating an internal and external smooth surface making practically invisible the joining area. Then, with the use of an external joint splitable in two similar parts embracing the two feamle ends of the joining pipes present a strong, reliable joining thereof.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR96100448 | 1996-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GR1002777B true GR1002777B (en) | 1997-09-26 |
Family
ID=10942586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GR960100448A GR1002777B (en) | 1996-12-31 | 1996-12-31 | Drilling pipes with female coupling on either side, method of joining thereof |
Country Status (1)
Country | Link |
---|---|
GR (1) | GR1002777B (en) |
-
1996
- 1996-12-31 GR GR960100448A patent/GR1002777B/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ML | Lapse due to non-payment of fees |