Assembly including two pipe lengths assembled with an interface joint

Patent metadata

Field	Value
Publication number	US-10207432-B2
Application number	US-201414572874-A
Country	US
Kind code	B2
Filing date	Dec 17, 2014
Priority date	Dec 19, 2013
Publication date	Feb 19, 2019
Grant date	Feb 19, 2019

Abstract

An assembly including a first pipe length and a second accommodating mechanical pipe length, said first length being assembled in said second length by means of an interface joint, that is a conductor of electric current. As it is assumed that said first length and said second length are also conductors of electric current, the joint thus provides good sealing between the first pipe length and the second pipe length in order to prevent leakages of fluid and to prevent the formation of inopportune electric arcs due, for example, to static electricity.

First claim

The invention claimed is:

1. A method of manufacturing a pipe, said method comprising:
selecting a first length of pipe, the first length of pipe being electrically conductive; and
forming a seal on the first pipe length by overmoulding an electrically conductive sealing material on the first pipe length such that the seal is overmoulded in an annular recess of an outer surface of the first pipe length and extends into a bottom hollowed out by a central groove that is centered within an axial length of and extends the entire circumferential length of the annular recess,
wherein the seal is configured to seal between the first pipe length and a second pipe length when the first pipe length and the second pipe length at least partially overlap, and the annular recess is delimited by two annular shoulders with one of the two shoulders being flush with an end of the first pipe length.

2. The method according to claim 1 , wherein the seal is formed within an overlap zone between the first pipe length and the second pipe length.

3. The method according to claim 2 , wherein the seal extends at least partially along the circumference of the first pipe length within the overlap zone.

4. The method according to claim 1 , wherein the electrically conductive sealing material is plastic, loaded with carbon black.

5. The method according to claim 1 , wherein the seal is overmoulded in a recess of an outer surface of the first pipe length.

6. The method according to claim 1 , wherein the seal is overmoulded in an annular recess of an inner surface of the first pipe length.

7. The method according to claim 1 , wherein the first pipe length is a single piece and is made of a material chosen among a plastic with carbon black, glass fibre with carbon black, a mixture of glass fibre and plastic with carbon black, and a metal.

Assignees

• Airbus Operations Sas

Inventors

• Courpet Alexis
• Barre Thomas
• Bourbon Olivier
• Biteau Matthieu
• Roques Jean-Marc
• Buresi Christophe
• Lenoir Brice
• Villeroux Philippe

Classifications

• F16L21/08 Primary

  with additional locking means (F16L21/06 takes precedence; couplings of the quick-acting type F16L37/00) · CPC title

• B64D37/32

  Safety measures not otherwise provided for, e.g. preventing explosive conditions · CPC title

• F16L25/025

  for joints with sleeve or socket · CPC title

• B29L2023/22

  Tubes or pipes, i.e. rigid (bent tubes not for use as pipe couplings B29L2023/004) · CPC title

• B29C39/10 Primary

  incorporating preformed parts or layers, e.g. casting around inserts or for coating articles {(coating a surface by casting in general B05D1/30, B29C39/126 takes precedence)} · CPC title