CA2236710A1 - Flow line coupling - Google Patents
Flow line couplingInfo
- Publication number
- CA2236710A1 CA2236710A1 CA 2236710 CA2236710A CA2236710A1 CA 2236710 A1 CA2236710 A1 CA 2236710A1 CA 2236710 CA2236710 CA 2236710 CA 2236710 A CA2236710 A CA 2236710A CA 2236710 A1 CA2236710 A1 CA 2236710A1
- Authority
- CA
- Canada
- Prior art keywords
- pipe
- coupling
- coupling box
- split ring
- tapered surface
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 title abstract 11
- 238000010168 coupling process Methods 0.000 title abstract 11
- 238000005859 coupling reaction Methods 0.000 title abstract 11
- 239000002184 metal Substances 0.000 abstract 4
- 238000007789 sealing Methods 0.000 abstract 1
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Joints With Pressure Members (AREA)
Abstract
A coupling assembly (10) for leak proof connection of the ends of two lengths of pipe or tubing. One end of a first pipe (12) is coupled to a coupling box (18) which is connected to or integrally formed on the end of a second pipe (14). The coupling box (18) has threads for engaging a nut (24) for securing the coupling. The coupling box (18) has a bore for receiving the end of the first pipe (12). The end of the first pipe (12) has an outer tapered surface for engaging an inner tapered surface of the coupling box (18) to form a metal to metal seal between the first pipe (12) and the coupling box (18). The bore also contains an engager (20, 22) for coupling the nut to the first pipe. The engager includes a split ring (20) which has a longitudinal slot. The split ring has internal circumferential projections or gripping teeth (80) which are aligned with external circumferential projections or gripping teeth (38) on the end of the first pipe (12). As the nut (24) is tightened, the split ring (20) is compressed so that the gripping teeth (80) of the split ring are brought into engagement with the gripping teeth (38) of the first pipe. The split ring (20) and the first pipe (12) are then moved relative to the coupling box (18) so that the outer tapered surface (40, 41) at the end of the pipe is forced into metal to metal sealing contact with the inner tapered surface (50, 52) within the bore of the coupling box (18).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2694896P | 1996-09-04 | 1996-09-04 | |
| US60/026,948 | 1996-09-04 | ||
| US08/899,653 US5879030A (en) | 1996-09-04 | 1997-07-24 | Flow line coupling |
| US08/899,653 | 1997-07-25 | ||
| PCT/US1997/015405 WO1998010212A1 (en) | 1996-09-04 | 1997-09-03 | Flow line coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2236710A1 true CA2236710A1 (en) | 1998-03-12 |
| CA2236710C CA2236710C (en) | 2000-03-21 |
Family
ID=29554041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2236710 Expired - Fee Related CA2236710C (en) | 1996-09-04 | 1997-09-03 | Flow line coupling |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2236710C (en) |
-
1997
- 1997-09-03 CA CA 2236710 patent/CA2236710C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2236710C (en) | 2000-03-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |