Pipe end fitting with improved venting

Patent metadata

Field	Value
Publication number	US-12000512-B2
Application number	US-202117341059-A
Country	US
Kind code	B2
Filing date	Jun 7, 2021
Priority date	Oct 4, 2011
Publication date	Jun 4, 2024
Grant date	Jun 4, 2024

Abstract

A pipe end fitting assembly that includes an outer body having an outer surface, an inner surface defining a first bore, and an end surface, and an inner body having an inner surface defining a second bore and an outer surface. A portion of the inner body outer surface is secured to the outer body inner surface. A passage formed in the outer body includes a first portion extending from the end surface and parallel to the first bore, and a second portion extending from the outer body outer surface to the passage first portion. A pipe end is disposed around and secured to a portion of the inner body outer surface. A jacket is disposed around the pipe and has an end secured to the outer body outer surface. The passage portions are in fluid communication with each other and a space between the jacket and the pipe.

First claim

What is claimed is:

1. A pipe end fitting assembly, comprising:
an outer body having an outer body outer surface, an outer body inner surface that defines a first bore and an end surface extending between the outer body inner surface and the outer body outer surface;
an inner body having an inner body inner surface that defines a second bore and an inner body outer surface that is secured to the outer body inner surface; and
a jacket having an end secured to the outer body outer surface such that the jacket extends circumferentially around and axially along the inner body, wherein the outer body comprises a vent passage including:
a first portion extending through the end surface of the outer body to fluidly connect the vent passage to a space extending between the jacket and the inner body; and
a second portion extending from the first portion of the vent passage through the outer body outer surface to facilitate venting fluid from the space extending between the jacket and the inner body out of the pipe end fitting assembly.

2. The pipe end fitting assembly of claim 1 , wherein:
the outer body comprises an annular notch formed into the outer body outer surface; and
the first portion of the vent passage does not extend axially beyond the annular notch on the outer body.

3. The pipe end fitting assembly of claim 1 , wherein the vent passage only comprises two openings:
a first opening of the first portion of the vent passage; and
a second opening of the second portion of the vent passage.

4. The pipe end fitting assembly of claim 1 , wherein the outer body comprises a securing end configured to facilitate securing the pipe end fitting assembly to a bore fluid destination.

5. The pipe end fitting assembly of claim 1 , wherein:
the first portion of the vent passage is parallel to the first bore defined by the outer body inner surface;
the second portion of the vent passage is perpendicular to the first bore defined by the outer body inner surface; or
both.

6. The pipe end fitting assembly of claim 1 , wherein no part of the inner body outer surface extends radially beyond the outer body.

7. The pipe end fitting assembly of claim 1 , wherein the first portion of the vent passage does not extend completely through the outer body.

8. The pipe end fitting assembly of claim 1 , wherein the jacket is configured to be swaged around a pipe inserted into the space extending between the jacket and the inner body of the pipe end fitting assembly.

9. A method of implementing a pipe end fitting assembly, comprising:
forming an outer body such that an outer body inner surface defines a first bore and an end surface extends between the outer body inner surface and an outer body outer surface;
forming an inner body such that an inner body inner surface defines a second bore;
securing an inner body outer surface to the outer body inner surface; and
securing an end of a jacket to the outer body outer surface such that the jacket extends circumferentially around and axially along the inner body, wherein forming the outer body comprises forming a vent passage through the outer body at least in part by:
forming a first portion of the vent passage such that the first portion extends through the end surface of the outer body to fluidly connect the vent passage to a space extending between the jacket and the inner body; and
forming a second portion of the vent passage such that the second portion extends from the first portion of the vent passage through the outer body outer surface to facilitate venting fluid from the space extending between the jacket and the inner body out of the pipe end fitting assembly.

10. The method of claim 9 , wherein:
forming the outer body comprises forming an annular notch into the outer body outer surface; and
forming the first portion of the vent passage comprises forming the first portion of the vent passage such that the first portion of the vent passage does not extend axially beyond the annular notch on the outer body.

11. The method of claim 9 , wherein forming the outer body comprises forming the outer body with a securing end that facilitates securing the pipe end fitting assembly to a bore fluid destination.

12. The method of claim 9 , wherein:
forming the first portion of the vent passage comprises forming the first portion of the vent passage parallel to the first bore defined by the outer body inner surface;
forming the second portion of the vent passage comprises forming the second portion of the vent passage perpendicular to the first bore defined by the outer body inner surface; or
both.

13. The method of claim 9 , wherein securing the inner body outer surface to the outer body inner surface comprises securing the inner body outer surface to the outer body inner surface such that no part of the inner body outer surface extends radially beyond the outer body.

14. The method of claim 9 , wherein forming the first portion of the vent passage comprises forming the first portion of the vent passage such that the first portion of the vent passage does not extend completely through the outer body.

15. A method of using a pipe end fitting assembly, comprising:
inserting a pipe into a space extending between a jacket of the pipe end fitting assembly and an inner body of the pipe end fitting assembly, wherein:
the pipe end fitting assembly comprises an outer body having an outer body outer surface, an outer body inner surface that defines a first bore, and an end surface extending between the outer body inner surface and the outer body outer surface;
the inner body has an inner body inner surface that defines a second bore and an inner body outer surface secured to the outer body inner surface; and
an end of the jacket is secured to the outer body outer surface such that the jacket extends circumferentially and axially along the inner body;

swaging the jacket of the pipe end fitting assembly around the pipe to facilitate securing the pipe end fitting assembly to the pipe; and
venting fluid from the space extending between the jacket and the inner body of the pipe end fitting assembly out of the pipe end fitting assembly at least in part using a vent passage that comprises:
a first portion extending through the end surface of the outer body; and
a second portion extending from the first portion of the vent passage through the outer body outer surface.

16. The method of claim 15 , wherein:
the outer body of the pipe end fitting assembly comprises an annular notch formed into the outer body outer surface; and
the first portion of the vent passage does not extend axially beyond the annular notch on the outer body.

17. The method of claim 15 , comprising securing the pipe end fitting assembly to a bore fluid destination at least in part by securing a securing end of the outer body to the bore fluid destination.

18. The method of claim 15 , wherein:
the first portion of the vent passage is parallel to the first bore defined by the outer body inner surface;
the second portion of the vent passage is perpendicular to the first bore defined by the outer body inner surface; or
both.

19. The method of claim 15 , wherein no part of the inner body outer surface extends radially beyond the outer body of the pipe end fitting assembly.

20. The method of claim 15 , wherein the first portion of the vent passage does not extend completely through the outer body of the pipe end fitting assembly.

Assignees

• Trinity Bay Equipment Holdings Llc

Inventors

• Hegler Matthew Allen
• Heaton Andrew James

Classifications

• F16L35/00 Primary

  Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices · CPC title

• F16L9/19

  Multi-channel pipes or pipe assemblies · CPC title

• F16L13/02 Primary

  Welded joints · CPC title

• F16L33/2071

  the sleeve being a separate connecting member · CPC title

• F16L39/005

  for concentric pipes · CPC title