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US 2026/0160362 A1Published application
Pipe, pipe connection and pipeline system
AssigneeCore Linepipe Inc.
InventorsWei-en CHEN, Gregory Michael HENRY
Life of this patent
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Abstract
A pipe for a pipe to pipe connection includes a first belled end; a second belled end; a middle portion between the first belled end and the second belled end, the middle portion having an outer diameter, wherein the first belled end has a first enlarged outer diameter greater than the outer diameter of the middle portion; and wherein the second belled end includes a stepped outer diameter, wherein the belled end has an enlarged outer diameter greater than the middle portion and then steps up to a further enlarged outer diameter.
Claims14
A pipe for a pipe connection assembly comprising:
- a first open end;
- a second open end;
- an inner surface defining an inner diameter;
- an outer surface;
- a wall thickness defined by the distance between the inner surface and the outer surface;
- a first belled end adjacent the first open end;
- a second belled end adjacent the second open end;
- a middle portion between the first belled end and the second belled end, the middle portion having an outer diameter;
- wherein the first belled end has a first enlarged outer diameter greater than the outer diameter of the middle portion;
- and
- wherein the second belled end includes (i) a second enlarged outer diameter adjacent the middle portion and where the second enlarged outer diameter is greater than the outer diameter of the middle portion and (ii) a third enlarged outer diameter between the second enlarged outer diameter and the open end, where the third enlarged outer diameter is greater than the second enlarged outer diameter;
- a first press ring encircling the middle portion adjacent the first belled end, the first press ring having an inside diameter larger than the outer diameter and smaller than the first enlarged outer diameter;
- and
- a second press ring encircling the middle portion between the first press ring and the second belled end, the second press ring having an inside diameter larger than the second enlarged outer diameter and smaller than the third enlarged outer diameter.
11 more elements
Dependencies are inferred from the claim text.