Cold Forming and Heat Treatment Process for Tubulars
US-2015361728-A1 · Dec 17, 2015 · US
Sealed pipe joint
US9828812B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9828812-B2 |
| Application number | US-201313846253-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 18, 2013 |
| Priority date | Mar 22, 2010 |
| Publication date | Nov 28, 2017 |
| Grant date | Nov 28, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
In a pipe joint where two pipe sections ( 14, 16 ) have threadably engaged end potions ( 17, 18 ), joint ends ( 32, 34 ) are substantially sealed to each other by a sealing surface ( 40, 50 ) on one pipe section that substantially abuts a sealing surface ( 42, 52 ) on the other pipe section. In one joint, a ring-shaped cutout( 121 , FIG. 7 ) is formed in a first pipe section and a ring-shaped spacer ( 120 ) is located in the cutout. The spacer is chosen from several that have slightly different lengths so the spacer ends contacts the corresponding sealing surface( 130 ).
First claim
Opening claim text (preview).
What is claimed is: 1. A pipe string that includes first and second pipe sections that have adjacent first ends centered on an axis, where said first pipe section has a sealing surface ( 124 A) and has an axially-extending, asymmetric groove ( 142 A), and where said second pipe section has an axially extending tongue ( 156 ) with an enlarged and rounded tongue end that lies in said asymmetric groove, wherein: said asymmetric groove has an outer wall radially spaced apart a distance 2R from an inner wall at a first, open end of said asymmetric groove, wherein R is equal to half the width of the groove at the first open end thereof, and said asymmetric groove has a second, closed axial end that forms a groove bottom ( 158 ); said outer groove wall having a curved portion proximate the groove bottom ( 158 ) with a radius of curvature S that is at least about 1.5R and less than about 10R; the radius of curvature of said groove bottom is less than half the width of the groove at the first, open end thereof, and the tongue has an interference fit with the groove.
Assignees
Inventors
Classifications
characterised by the shape of the screw-thread · CPC title
- E21B17/042Primary
Threaded · CPC title
- F16L15/004Primary
with axial sealings having at least one plastically deformable sealing surface (with sealing rings F16L15/003) · CPC title
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- What does patent US9828812B2 cover?
- In a pipe joint where two pipe sections ( 14, 16 ) have threadably engaged end potions ( 17, 18 ), joint ends ( 32, 34 ) are substantially sealed to each other by a sealing surface ( 40, 50 ) on one pipe section that substantially abuts a sealing surface ( 42, 52 ) on the other pipe section. In one joint, a ring-shaped cutout( 121 , FIG. 7 ) is formed in a first pipe section and a ring-shaped …
- Who is the assignee on this patent?
- Single Buoy Moorings Inc (Switzerland Corporation), Single Buoy Moorings
- What technology area does this patent fall under?
- Primary CPC classification E21B17/042. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Nov 28 2017 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).