A method for subsea deployment of discrete lengths of flexible jumper pipes
US-2018320799-A1 · Nov 8, 2018 · US
Plastic tubular connecting sleeve for a pipe with internal liner
US8942552B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8942552-B2 |
| Application number | US-201113811711-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 25, 2011 |
| Priority date | Aug 6, 2010 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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A pipe having at least two steel pipe elements with internal lining that are assembled together end to end, with the ends of the two pipe elements being welded together. A tubular junction sleeve is interposed inside the pipe at the abutting ends of the two pipe elements so that the end terminal portions of the sleeve are at least in part in leaktight contact with respective ones of the terminal portions at the ends of the internal linings of the two pipe elements. The leaktight contact zone is a zone of fusion welding together the materials in mutual contact constituting at least a portion of each terminal portion of the sleeve and of each respective terminal portion of the lining. At each of the terminal portions of the sleeve in the leaktight contact zone, the tubular junction sleeve presents a Joule effect heater wire arranged in a double spiral on the outer surface of each terminal portion at the ends of the sleeve.
First claim
Opening claim text (preview).
The invention claimed is: 1. A tubular junction sleeve of thermoplastic material suitable for being inserted inside a pipe comprising at least two steel pipe elements that are internally lined with a thermoplastic material where the ends of the two welded together pipe elements are assembled end to end, said sleeve presenting at each end a tubular wall terminal portion of thickness that is smaller than the thickness of the adjacent running portion of the tubular wall of said sleeve…
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- What does patent US8942552B2 cover?
- A pipe having at least two steel pipe elements with internal lining that are assembled together end to end, with the ends of the two pipe elements being welded together. A tubular junction sleeve is interposed inside the pipe at the abutting ends of the two pipe elements so that the end terminal portions of the sleeve are at least in part in leaktight contact with respective ones of the termina…
- Who is the assignee on this patent?
- Pionetti François-Rég S, Rocher Xavier, Saipem Sa
- What technology area does this patent fall under?
- Primary CPC classification F16L1/15. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).