GB2500419B - Multi-diameter electrofusion output terminal(s) for welding electrofusion fittings with different input pin diameters - Google Patents

Multi-diameter electrofusion output terminal(s) for welding electrofusion fittings with different input pin diameters Download PDF

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Publication number
GB2500419B
GB2500419B GB1204990.4A GB201204990A GB2500419B GB 2500419 B GB2500419 B GB 2500419B GB 201204990 A GB201204990 A GB 201204990A GB 2500419 B GB2500419 B GB 2500419B
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GB
United Kingdom
Prior art keywords
electrofusion
diameter
output terminal
input pin
fittings
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Active
Application number
GB1204990.4A
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GB2500419A (en
GB201204990D0 (en
Inventor
Joseph Tannant Graham
Mark Wilkinson Kevin
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ADVANCE WELDING
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ADVANCE WELDING
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Priority to GB1204990.4A priority Critical patent/GB2500419B/en
Publication of GB201204990D0 publication Critical patent/GB201204990D0/en
Publication of GB2500419A publication Critical patent/GB2500419A/en
Application granted granted Critical
Publication of GB2500419B publication Critical patent/GB2500419B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • B29C66/8414—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions of different diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9161—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux
    • B29C66/91651—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating
    • B29C66/91655—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the heat or the thermal flux, i.e. the heat flux by controlling or regulating the heat generated by Joule heating or induction heating by controlling or regulating the current intensity
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/35—Contact members for non-simultaneous co-operation with different types of contact member, e.g. socket co-operating with either round or flat pin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Description

Title: Multi-Diameter Electrofusion Output Terminal(s) for Welding Electrofusion Fittings with different Input Pin diameters.
Background:
Electrofusion fittings are used to electrically heat and weld plastic pipe together by means of prefabricated couplers, tees and tapping saddles (for example) with either an embedded or prefabricated conductive wire wound inside. The wire has resistance before electricity is applied. The resistance generates a current when a voltage is applied and this current heats up the wire, (40v for example, via an electrofusion control unit (ECU) or 'welding unit') and thereby heating up the plastic on the pipe and the fitting, creating a 'melt' to join the pipes to the fitting, and creating a leak-free joint.
These fittings can be made of many types of plastic, including for example, PE, PP PVDF and are widely manufactured in many Countries of the world. The fittings have input pin terminals of differing sizes, e.g. ranging from 3.3mm, 4mm, 4.7mm, 5.7mm in diameter, which require an electrical connection using the same size diameter terminal to ensure a good current carrying connection. There are other sizes of input pin available as well, for differing demands and manufacturers specifications for current carrying capacity (the drainage type fittings can use input pins with 2 and 2.3mm diameter for example, and 80V electrofusion fittings have an input pin size of 5.7mm diameter)
This invention relates to the specific current carrying Output Terminal Ends that are fitted to the ends of the Electrofusion Control Unit (ECU) or Electrofusion Welding machine's Output Lead(s). These Output Leads can be a single prefabricated unit or two single wires (or more wires), and are normally supplied with a single size of Output Terminal(s) to suit a particular size of electrofusion fitting. For example, UK manufacturers of electrofusion fittings generally manufacture their fittings with 4.7mm input terminal pins (2-off per fitting) and require the electrofusion machinery to have a pair of Output Terminals that have a diameter of 4.7mm, to ensure the weld can be performed without the Output Terminal either falling off the input pin on the electrofusion fitting by being too loose, or creating a poor contact that may increase electrical resistance, and cause the Output Terminal(s) to over-heat, and cause a bad electrofusion joint. European and other Countries electrofusion fittings manufacturers, can and do prefer to use and fit the 4.0mm diameter input pin size to their fittings, and this is regarded the 'normal' input pin size in the EU and other metric orientated Countries.
The existing supplied Output Leads as explained beforehand, are supplied with a pair of singular sized/fixed size terminals, and where multi-pin size electrofusion fittings are supplied (e.g. fittings from the EU manufacturers with 4mm diameter input pins and UK supplied fittings with 4.7mm input pins) the output leads either have to be changed completely (i.e. for a set that has the correct corresponding Output Terminal(s)) or, more commonly, a pair of 'Terminal Adapters' are supplied (e.g. 4.0mm hole to 4.7mm pin or vice-versa for example) to adapt the Output lead to suit the different size pins on the fittings. The problem with this is that the person who is operating the ECU (electrofusion Welder) may not have a set of the correct output leads, or a set of the corresponding 'Terminal Adaptors' for making the correct electrofusion Output Terminal to Input Pin connection.
Statement of Invention:
In accordance with embodiments of the invention, a multi-diameter electrofusion welding output terminal connector is provided according to the claims.
To overcome the problems of differing leads with single sized Output Terminal(s), or the need for using adapters of differing sizes, the present proposed invention offers a method of making a connection to two commonly sixed Input Pin diameters found on electrofusion fittings using one set of Output Terminal (a pair or more if required).
This Output Terminal design offers reliable connections to the Input Pin on both the standard UK 4.7mm pin or the commonly used EU 4.0mm pins (for example, but could also offer other sizes i.e. 4.7mm and 5.7mm or a combination of many to suit the individual requirements of differing manufacturers electrofusion fittings) with the need to replace the output lead in its entirety to make the connection to the different sized Input Pin/ electrofusion pin, or by using the aforementioned and commonly available Terminal Adapters to make the connections(s), which are supplied with the ECU and/or fittings supplied to the job in hand by the manufacturer of the fittings or the ECU manufacturer or owner/hirer of said electrofusion welding equipment.
In certain examples, multi-diameter electrofusion welding output terminal(s) connector(s) are provided, where these can be a terminal adapter or pair of adapters that can have the same described multi-diameters machined to suit other types of Input Pins fitted to other electrofusion fittings where required, fitted with the corresponding pin(s) to allow fitment to the aforementioned output lead terminals, fitted to the electrofusion welders output lead(s).
In certain examples, multi-diameter electrofusion welding output terminal(s) connector(s) are provided that may be designed and machined to fit and install a suitable contacting spring-loaded insulated pin (for example) and separate control wire, to measure and determine the correct parameters for welding, and operate a resistor type identification electrofusion fitting as supplied by some manufacturers.
In certain examples, multi-diameter electrofusion welding output terminal(s) connector(s) are provided that are also capable of and configured to measure the resistance of an electrofusion fitting and determine that the correct parameters for used in conjunction with a Bar Code and associated scanner prior to the welding process commencing, or by other means such as a software look-up table in the electrofusion welding apparatus being operated.
In certain examples, multi-diameter electrofusion welding output terminal(s) connector(s) are provided where the visual indicator is also a ring or clip that also controls the diameter(s) of the machined multi-diameter holes, and/or offers structural support to such when in use, either in insertion or removal from the electrofusion fitting input pins.
In certain examples, multi-diameter electrofusion welding output terminal(s) connector(s) are provided that may have electronics incorporated into such, that can electronically determine the correct depth/connection by the associated software within the electrofusion welding apparatus, or external by means of a separate electronic device.
In certain examples, multi-diameter electrofusion welding output terminal(s) connector(s) are provided that may have in-built evidential hardware fitted that can record and report electronically either within the electrofusion welding apparatus software, or by a separate electronic device either attached to it or separate, or by transmitting the information using GPRS telemetry or similar transmission technology, or by separate means by resistance or depth measurement or photographic means, for example, that the correct depth for the fitting and associated output terminal is correct for the type of fitting and input pins that are being connected for welding.
In certain examples, multi-diameter electrofusion welding output terminal(s) connector(s) are provided that may be fitted with sound indication by means of an electronic device or fitted hardware within the output terminal(s) or output lead(s) (a proximity device or inductor for example) and loud speaker, indicating correct fitment for pin size or depth of insertion, and controlled and/or recorded by either the electrofusion welder and associated software or separate device and controlled by associated software.
Advantages:
The main advantage of this invention is that the Output Leads supplied with the Multi-Diameter Electrofusion Output Terminal(s) for Welding Electrofusion Fittings with different Input Pin diameters and/or used with any Electrofusion Welder can reliably fit and weld any 4.0 or 4.7mm (for example, but not limited to these sizes as explained beforehand) electrofusion fittings currently supplied and used for electrofusion welding/jointing. A further advantage of this invention is to remove the chance of a poor connection (by using a 4.7mm Output Terminal on a 4.0mm Input Pin on the fitting for example) which may cause the electrofusion joint to fail for a number of technical reasons. A further advantage of this invention is that where adapters are traditionally supplied for multimanufacturer and pin sized fitting, they are invariably 'lost' on site at some point, forcing the bad practice mentioned above, or stopping or halting the work in hand until such Terminal adapters or Output Leads can be procured to be able to weld the electrofusion joint correctly and reliably. The operator/welder can now use this invention/ Output Lead for both 4 and 4.7mm (for example) Input Pins on any manufacturers electrofusion fittings. A further advantage is that there is a visual depth/insertion indicator that may be coloured red, for example, that offers the operator a visual aid to correct depth insertion for different pin sizes. A further advantage with this invention is that it can also be used to create multi-input-pin-size adaptors mentioned beforehand, offering for example, pin diameters of 4.7mm and 5.7mm thereby giving the welding operator further flexibility (4 or more Input Pin sizes) when welding on site with differing manufacturers fittings.
Drawings:
See drawing 1. for reference
An example of the proposed multi-diameter electrofusion output terminal(s) for welding electrofusion fittings with different input pin diameters invention will now be described by referring to the accompanying drawing 1:
For clarity, the drawing (1.) shows the component parts of the invention separated from the intended conductive contact with the electrofusion fitting, with a single Output Terminal Lead shown, which would ordinarily be a pair of such to create the circuit required to electrofuse the fitting. In the working condition, the Output Lead Terminal(s)/conductor(s) and the Input Pin(s) fitted to the electrofusion fitting (a coupler is shown as an example of available fittings) are mated/inserted to create the required current carrying connection for fusion welding and/or additional control/set-up measurements (resistance measuring, for example).
Figure 1. 1. Output lead from ECU (Electrofusion Welding apparatus) shown truncated. 2. Output Terminal (right angled version shown for example only, as other styles can be used). 3. Electrofusion Coupler Shroud. 4. Visual Depth Indicator, which may be coloured red for example, and which may also be used as a restraining ring to control hole diameters. 5. Electrofusion Coupler is displayed as an example of an electrofusion fitting only.
Figure 2. Section A-A 6. Sectional drawing across A-A detailing the Electrofusion fitting conductive Input Pins of differing diameters, but commonly 4.0mm and 4.7mm. 7. Sectional drawing across A-A detailing the Output terminal Invention, with a detailed view in Detail B in Figure 3.
Figure 3. Detail B 8. Indicating a 4.0mm contacting conductive Output Terminal with a hole drilled through in this example, to align and mate with a 4.0mm Input Terminal on the electrofusion fitting. 9. Indicating a 4.7mm contacting conductive Output Terminal with a hole machined to a specific depth to allow correct current carrying capacity when mated with a 4.7mm Input Terminal on the electrofusion fitting.
Detailed Description:
To overcome the problems encountered with the standard style of Output Lead(s) (Drawing 1., Figure 1.,1.) and associated Output Terminals (Drawing 1., Figure 1., point 2.) and adapters (not shown in this example) that are used and fitted to electrofusion control units to make the current carrying connection, the present invention proposes to have 2 independent hole size diameters machined into the Output Terminal(s) connection (shown in Drawing 1. Figure 1., point 2.), machined or fabricated in such a way to offer the correct depth of insertion, regardless of the electrofusion Input Pin size on the electrofusion fitting, and able to deliver the correct current capacity for a successful electrofusion weld to be performed.
The first insertion size in the example illustrated in Drawing 1., shows the Output Terminal hole size (Drawing 1., Figure 3, point 9.) that may (for example) be 4.7mm diameter, corresponding with Drawing 1., Figure 3, point 9. and point 6. where 6. is a 4.7mm diameter Input Pin on the electrofusion fitting (5.). The Visual Indicator (4.) will on the first insertion (9.) show that the correct depth for the size of terminal is evident by leaving the Visual Indicator (4.) exposed above the shroud (3.), due the accurately machined depth of the hole, which is calculated to be able to carry the currents required for electrofusion welding process.
The second insertion size in the example illustrated in Drawing 1., may be (for example) a 4.0mm diameter hole, which may or may not be drilled through to allow dirt/mud to be removed, corresponding with Drawing 1., Figure 3, point 8., and point 6. where 6. is a 4.0mm diameter Input Pin on the electrofusion fitting. The Visual Indicator (4.) will be completely inserted into the shroud (3.) on this size of Input Pin (in this example), and not visible to the operator, therefore offering confidence that the current carrying connection is correct, and the electrofusion weld can commence.

Claims (6)

1. A multi-diameter electrofusion welding output terminal connector machined or fabricated with a hole with a first section of a first diameter for receiving input pins of the first diameter and an adjacent second section of a second, smaller, diameter for receiving input pins of the second diameter, wherein the first section is of a first depth and the second section is of a second depth to ensure that when an input pin of the first diameter or the second diameter is fitted, a specified current for welding electrofusion fittings is delivered to the input pin.
2. A multi-diameter electrofusion welding output terminal connector according to claim 1, wherein the output terminal further comprises a visual indicator to indicate a correct input pin insertion depth.
3. A multi-diameter electrofusion welding output terminal connector according to claim 1 or 2, consisting of a conductive material comprising one of brass, copper, metal, carbon, adaptive wire or mesh, silver, or comprising a conductive substrate plated material.
4. A multi-diameter electrofusion welding output terminal connector according to claim 1, configured as a straight entry output terminal or as a right-angle entry configuration.
5. A multi-diameter electrofusion welding output terminal connector according to claim 1, insulated by a non-conductive material shrouding the output terminal.
6. A multi-diameter electrofusion welding output terminal connector according to claim 2, wherein the visual indicator is coloured red or comprises graduated markings.
GB1204990.4A 2012-03-22 2012-03-22 Multi-diameter electrofusion output terminal(s) for welding electrofusion fittings with different input pin diameters Active GB2500419B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1204990.4A GB2500419B (en) 2012-03-22 2012-03-22 Multi-diameter electrofusion output terminal(s) for welding electrofusion fittings with different input pin diameters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1204990.4A GB2500419B (en) 2012-03-22 2012-03-22 Multi-diameter electrofusion output terminal(s) for welding electrofusion fittings with different input pin diameters

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Publication Number Publication Date
GB201204990D0 GB201204990D0 (en) 2012-05-02
GB2500419A GB2500419A (en) 2013-09-25
GB2500419B true GB2500419B (en) 2019-06-05

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2513453B (en) * 2014-02-26 2017-04-26 Radius Systems Ltd Terminal pin

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137026A (en) * 1983-03-24 1984-09-26 Fusion Plastics Ltd Coupling electrofusion fitting to energy source and control equipment
GB2282102A (en) * 1993-09-06 1995-03-29 Uponor Aldyl Ltd Composite electrofusion pipe fitting
JPH09309152A (en) * 1996-05-23 1997-12-02 Sekisui Chem Co Ltd Electrowelding device
JP2003033973A (en) * 2001-07-23 2003-02-04 Hitachi Metals Ltd Electric fusion welding device for supplying current to electric fusion welding joint
EP1528632A1 (en) * 2003-10-30 2005-05-04 Hawle Armaturen GmbH Electrical connector for fusion coupling sleeve
WO2005064224A1 (en) * 2003-12-29 2005-07-14 Nam-Hoon Lee Power supplier with multiterminals for electrofusion socket

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137026A (en) * 1983-03-24 1984-09-26 Fusion Plastics Ltd Coupling electrofusion fitting to energy source and control equipment
GB2282102A (en) * 1993-09-06 1995-03-29 Uponor Aldyl Ltd Composite electrofusion pipe fitting
JPH09309152A (en) * 1996-05-23 1997-12-02 Sekisui Chem Co Ltd Electrowelding device
JP2003033973A (en) * 2001-07-23 2003-02-04 Hitachi Metals Ltd Electric fusion welding device for supplying current to electric fusion welding joint
EP1528632A1 (en) * 2003-10-30 2005-05-04 Hawle Armaturen GmbH Electrical connector for fusion coupling sleeve
WO2005064224A1 (en) * 2003-12-29 2005-07-14 Nam-Hoon Lee Power supplier with multiterminals for electrofusion socket

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Publication number Publication date
GB2500419A (en) 2013-09-25
GB201204990D0 (en) 2012-05-02

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