GB2204189A - Electrically connecting pipes - Google Patents

Electrically connecting pipes Download PDF

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Publication number
GB2204189A
GB2204189A GB8706631A GB8706631A GB2204189A GB 2204189 A GB2204189 A GB 2204189A GB 8706631 A GB8706631 A GB 8706631A GB 8706631 A GB8706631 A GB 8706631A GB 2204189 A GB2204189 A GB 2204189A
Authority
GB
United Kingdom
Prior art keywords
coupling
connector
pipes
electrical
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB8706631A
Other versions
GB8706631D0 (en
GB2204189B (en
Inventor
David Fretwell
Andrew Michael Penny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain PAM UK Ltd
Original Assignee
Stanton PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stanton PLC filed Critical Stanton PLC
Priority to GB8706631A priority Critical patent/GB2204189B/en
Publication of GB8706631D0 publication Critical patent/GB8706631D0/en
Publication of GB2204189A publication Critical patent/GB2204189A/en
Application granted granted Critical
Publication of GB2204189B publication Critical patent/GB2204189B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/60—Connections between or with tubular conductors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/002—Sleeves or nipples for pipes of the same diameter; Reduction pieces
    • F16L21/005—Sleeves or nipples for pipes of the same diameter; Reduction pieces made of elastic material, e.g. partly or completely surrounded by clamping devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/01—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means specially adapted for realising electrical conduction between the two pipe ends of the joint or between parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

A bridge (1) clips onto a coupling ring (2) and electrically contacts each pipe (4, 5) coupled by the ring via clips (10) and contacts (6). Sharp edges (11) of punched holes facilitate electrical contact. The bridge may be made of stainless steel. <IMAGE>

Description

Improvements in or relating to Electrical Connectors This invention relates to electrical connectors, and more particularly to connectors for use with metal pipelines and similar elongate multi-part structures for ensuring electrical connection between separate parts of the pipeline or similar structure.
It is known with such pipelines and similar structures, that if electrical contact between the pipes at couplings and other forms of inter-connection is not maintained, it is possible for charge or electrical potential to build up in part of the pipeline system which can, if suddenly discharged, lead to dangerous and/or fire-producing results.
To this end it has previously been proposed to provide various forms of connector which link the individual pipes or similar elongate multi-element structures across inter-connecting members such as pipe couplings to ensure that there is always an electrical path along the pipeline between separate elements thereof, leading to equipotential bonding therebetween. Such connectors are herinafter called electric connectors of the kind described".
It is an object of the present invention to provide a simple and effective connector of the kind described.
In accordance with one aspect of the invention there is provided a connector for pipes or similar structures comprising an elongate body adapted to pass through an encircling coupling for the pipes or similar structures between the coupling and the pipes being connected thereby, and to radially overlie sealing gasket or gaskets of the coupling, each end of the connector being provided with a radially inwardly directed tag adapted in use to engage in electrical contact upon the pipe to be connected, and a radially outwardly directed clip adapted to secure upon the outer portions of the coupling.
Means may be provided for electrically contacting the connector to the coupling. This may be adjacent each end of the connector and may be by means of a radially outwardly extending sharply edged protrusion in each case. rivet, for example.
In accordance with a further aspect of the present invention there is provided an electrical connector of the kind previously described comprising a strip of spring metal adapted to lie within and axially along a coupling for a pipe or similar structure and conform to the inner configuration of the coupling, the connector being arranged at each end for electrical connection to the inner surface of the coupling, and having at its end-most portions at each end, an inclined inwardly directed tag portion adapted to connect electrically with pipes or similar structures located within the coupling, and an outwardly directed clip portion at each end adapted to overlie the ends of the coupling and hold the connector in place therewith.
The invention includes within its scope a pipe coupling incorporating an electrical connector as hereinabove defined.
By means of the invention, it is possible to ensure that the electrical connector is assembled and sold integrally with the coupling. Not only does this ensure that the connector is always present with the coupling, but also ensures that the connector is easily assembled with the coupling about the relevant pipes for example. This is because it can be simply arranged that the coupling to which the connector is attached, is assembled in a normal manner about the pipes. The connector being visible at all times, ensures the correct installation thereof, whereas with non-visible internal connectors previously used, there could be no certainty of correct installation unless additional checking were carried out.
In addition,-the connector in use being outside the pipe gasket or gaskets, although inside the coupling, does not come into contact with potentially corrosive fluid within the associated pipes.
In order that the invention may be more readily understood two embodiments thereof will now be described by way of example with reference to the accompany drawings in which: Figure 1 is an isometric view of an electrical connector in accordance with one embodiment of the invention; Figure 2 is a sectional side elevation showing the electrical connector of Figure 1 located within a coupling about a pair of coupled pipes; and Figure 3 is a side elevation of a second embodiment of an electrical connector in accordance with the invention.
Referring now to Figures 1 and 2 it is to be seen that the electrical connector comprises pressed stainless steel strip 1 adapted to conform to the inner configuration of a ductile iron pipe coupling 2.
The connectoras can be seen, radially overliesa membrane gasket 3 associated with the coupling for providing a seal with protective coated ductile iron pipes tri,5 connected thereby. In the embodiment illustrated, the coupling is of the type having at least two arc-like portions connected together about the pipes. The connector is provided with biforcated inwardly inclined tabs 6 at each end whose edges are resiliently urged through the portective coating and into contact with the two pipes on securing of the coupling to ensure electrical contact between them.
In addition radially outwardly turned clips 7 at each end engage the axially ends 8 of the coupling 2 so as to hold the clip firmly in location thereupon.
Punched holes 11 at each end of the connector with sharp edges ensure electrical contact with the coupling.
The arrangement of Figure 3 is the same as that of Figures 1 and 2 except that in this case, the design of the radially outwardly extending clips 9 at each end is not provided with the curved portion 10 of that of Figures 1 and 2.
By means of the invention we have provided an arrangement for ensuring electrical contact between adjacent pipes and the coupling in a pipeline system of simple and effective construction which can be assembled integrally with the coupling to avoid misplacement and to ensure simplicity of assembly.
Some advantages of the arrangement are that: a) The connection is not in contact with the fluid being carried by the pipes and thus is not susceptible to attack from corrosive fluids therewithin.
b) Pipe withdrawn from and deflection within the coupling are not limited or affected by its introduction.
c) The action of effecting the seal also makes- the electrical contact.
d) It is easy to ensure a connector has been provided, which was not the case with previous internal connectors.
e) It is visually easy to check correct installation and condition of the connector in service.

Claims (9)

1 An electrical connector for pipes or similar structures comprising an elongate body adapted to pass through an encircling coupling for the pipes or similar structures between the coupling and the pipes being connected thereby, and to overlie radially a sealing gasket or gaskets of the coupling, each end of the connector being provided with a radially inwardly directed tag adapted in use to engage in electrical contact upon the pipe to be connected, and a radially outwardly directed clip adapted to secure upon the outer portions of the coupling.
2 An electrical connector of the kind previously described comprising a strip of spring metal adapted to lie within and axially along a coupling for a pipe or similar structure and conform to the inner configuration of the coupling, the connector being arranged at each end for electrical connection to the inner surface of the coupling, and having at its end-most portions at each end an inclined inwardly directed tag portion adapted to connect electrically with pipes or similar structures located within the coupling, and an outwardly directed clip portion at each end adapted to overlie the ends of the coupling and hold the connector in place therewith.
3 A connector according to claim 1 or 2 including means for contacting the connector to the coupling.
4 A connector according to claim 3 wherein the means for contacting the connector to the coupling is provided adjacent each end of the connector.
5 A connector according to claim 3 04 4 wherein the means for electrically contacting the connector to the coupling comprises in each case a radially outwardly extending sharply edged protrusion.
6 A connector according to claim 5 wherein the means for electrically contacting the connector to the coupling comprises a rivet.
7 An electrical connector substantially as shown in and as hereinbefore described with reference to the accompanying drawings.
8 A pipe coupling incorporating an electrical connector according to any one of the precding claims.
9 A pipe coupling substantially as shown in and as hereinbefore described with reference to the accompanying drawings.
GB8706631A 1987-03-20 1987-03-20 Improvements in or relating to electrical connectors Expired - Lifetime GB2204189B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8706631A GB2204189B (en) 1987-03-20 1987-03-20 Improvements in or relating to electrical connectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8706631A GB2204189B (en) 1987-03-20 1987-03-20 Improvements in or relating to electrical connectors

Publications (3)

Publication Number Publication Date
GB8706631D0 GB8706631D0 (en) 1987-04-23
GB2204189A true GB2204189A (en) 1988-11-02
GB2204189B GB2204189B (en) 1990-09-26

Family

ID=10614310

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8706631A Expired - Lifetime GB2204189B (en) 1987-03-20 1987-03-20 Improvements in or relating to electrical connectors

Country Status (1)

Country Link
GB (1) GB2204189B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213330A (en) * 1987-12-02 1989-08-09 Dereve Electrical continuity in plastics-bodied fittings
GB2305481A (en) * 1995-09-19 1997-04-09 Glynwed Foundry Prod Ltd Pipe coupling with gasket and housing
GB2364755A (en) * 2000-07-15 2002-02-06 Imi Yorkshire Fittings Push-in tube fittings
FR3001276A1 (en) * 2014-04-14 2014-07-25 Parker Hannifin Mfg France Sas Connecting device for electrically conductive tubes in fluid transport circuit, has deformable conduction element e.g. metal wire, with intermediate curved portion protruding into channel to bear against outer surface of tube ends
WO2015089592A1 (en) * 2013-12-17 2015-06-25 ATLAS COPCO AIRPOWER , naamloze vennootschap Coupling for connecting pipe ends and bridging for use in a coupling

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2035717A (en) * 1978-10-26 1980-06-18 Electrical Contact Assemblies Electrical contact assemblies
US4316053A (en) * 1979-09-24 1982-02-16 Coupling Systems, Inc. Pipe couplings and coupling gaskets

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2035717A (en) * 1978-10-26 1980-06-18 Electrical Contact Assemblies Electrical contact assemblies
US4316053A (en) * 1979-09-24 1982-02-16 Coupling Systems, Inc. Pipe couplings and coupling gaskets

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213330B (en) * 1987-12-02 1992-08-05 Dereve A fluid flow fitting.
GB2213330A (en) * 1987-12-02 1989-08-09 Dereve Electrical continuity in plastics-bodied fittings
GB2305481A (en) * 1995-09-19 1997-04-09 Glynwed Foundry Prod Ltd Pipe coupling with gasket and housing
GB2305481B (en) * 1995-09-19 2000-03-22 Glynwed Foundry Prod Ltd Pipe coupling
GB2364755A (en) * 2000-07-15 2002-02-06 Imi Yorkshire Fittings Push-in tube fittings
GB2364755B (en) * 2000-07-15 2004-05-12 Imi Yorkshire Fittings Improvements relating to push-in tube fittings
DE212014000233U1 (en) 2013-12-17 2016-07-28 Atlas Copco Airpower N.V. Coupling for connecting pipe ends and bridging for use in a coupling
WO2015089592A1 (en) * 2013-12-17 2015-06-25 ATLAS COPCO AIRPOWER , naamloze vennootschap Coupling for connecting pipe ends and bridging for use in a coupling
CN104791566A (en) * 2013-12-17 2015-07-22 阿特拉斯·科普柯空气动力股份有限公司 Coupling for connecting pipe ends and bridging for use in coupling
US10184600B2 (en) 2013-12-17 2019-01-22 Atlas Copco Airpower, Naamloze Vennootschap Coupling for connecting pipe ends and bridging for use in a coupling
BE1021364B1 (en) * 2013-12-17 2015-11-06 Atlas Copco Airpower Naamloze Vennootschap COUPLING FOR CONNECTING PIPE ENDS AND BRACKET FOR USE IN A COUPLING
FR3001276A1 (en) * 2014-04-14 2014-07-25 Parker Hannifin Mfg France Sas Connecting device for electrically conductive tubes in fluid transport circuit, has deformable conduction element e.g. metal wire, with intermediate curved portion protruding into channel to bear against outer surface of tube ends
CN106233056A (en) * 2014-04-14 2016-12-14 帕克汉尼芬制造业法国联合股份公司 For providing the coupling device of the electric continuity between pipe
WO2015158708A1 (en) * 2014-04-14 2015-10-22 Parker Hannifin Manufacturing France Sas Coupling device providing electrical continuity between tubes
US10374333B2 (en) 2014-04-14 2019-08-06 Parker Hannifin Manufacturing France Sas Coupling device providing electrical continuity between tubes

Also Published As

Publication number Publication date
GB8706631D0 (en) 1987-04-23
GB2204189B (en) 1990-09-26

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20070319