Pipe joint

Patent metadata

Field	Value
Publication number	US-11585474-B2
Application number	US-201816651382-A
Country	US
Kind code	B2
Filing date	Sep 26, 2018
Priority date	Sep 29, 2017
Publication date	Feb 21, 2023
Grant date	Feb 21, 2023

Abstract

A pipe joint connecting a first pipe having conductivity and being grounded and a second pipe including a corrugated metallic pipe member and a conductive layer having lower electric resistance than metal forming the pipe member and covering the pipe member, the pipe joint including a connection part that has conductivity and is connected to the first pipe, a housing part that has conductivity, is engaged with the connection part, and houses the second pipe inside the housing part by insertion of the second pipe along an axis direction of the second pipe, and a conductive member that includes a first part in contact at least partially with the housing part and a second part exposed to an outside of the housing part to be in contact with the conductive layer.

First claim

What is claimed is:

1. A pipe joint connecting a first pipe having conductivity and being grounded and a second pipe including a corrugated metallic pipe member and a conductive layer having lower electric resistance than metal forming the pipe member and covering the pipe member, the pipe joint comprising:
a connection part having conductivity and connected to the first pipe;
a housing part having conductivity, engaged with the connection part, and housing the second pipe inside the housing part by insertion of the second pipe along an axis direction of the second pipe; and
a conductive member that includes a first part in contact with an inner portion of the housing part and a second part exposed to an outside of the pipe joint and being in contact with the conductive layer,
wherein the second part is in contact with the conductive layer by a projection projecting toward the conductive layer,
the conductive member includes a third part configured to be engaged with an outer edge of the pipe member of the second pipe in the housing part, and
the conductive member includes a part between the second part and the third part, wherein the part faces the second pipe and does not contact the second pipe.

2. The pipe joint according to claim 1 , wherein
the first part includes a surface facing at least one side of the axis direction, and
the housing part is engaged with the connection part from the one side and fixes the second pipe through the conductive member, in a state that the third part is engaged with the outer edge of the second pipe.

Assignees

• Hitachi Metals Ltd

Inventors

• Yoshida Yoshinori
• Mori Masahiro

Classifications

• F16L25/01 Primary

  specially adapted for realising electrical conduction between the two pipe ends of the joint or between parts thereof · CPC title

• F16L25/0036 Primary

  Joints for corrugated pipes · CPC title

• F16L33/26

  specially adapted for hoses made of metal · CPC title

• F16L33/224

  a clamping ring being arranged between the threaded member and the connecting member · CPC title