EP2920500A1 - Improvements in and relating to pipe connectors - Google Patents

Improvements in and relating to pipe connectors

Info

Publication number
EP2920500A1
EP2920500A1 EP13808172.4A EP13808172A EP2920500A1 EP 2920500 A1 EP2920500 A1 EP 2920500A1 EP 13808172 A EP13808172 A EP 13808172A EP 2920500 A1 EP2920500 A1 EP 2920500A1
Authority
EP
European Patent Office
Prior art keywords
pipe
connector
spigot
fitting
collar
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.)
Withdrawn
Application number
EP13808172.4A
Other languages
German (de)
French (fr)
Inventor
Vicki Jane JOHANSEN
Gary James
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.)
Talis-Uk Ltd
Original Assignee
Talis-Uk Ltd
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 Talis-Uk Ltd filed Critical Talis-Uk Ltd
Publication of EP2920500A1 publication Critical patent/EP2920500A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0925—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with rings which bite into the wall of the pipe
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • 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
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0926—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with an inner support sleeve arranged within the pipe

Definitions

  • This invention relates to pipe connectors, such as plastics pipe connectors of the type typically used to connect pipes underground, such as water pipes supplying water to buildings,
  • a common method of connecting plastics water pipes of the type described above is by the use of compression fittings in which the tubular connector has threaded ends onto which respectively opposite threaded compression collars may be received, the collars themselves being rotatable with respect to the connector to capture the end of the pipe to both mechanically secure it to the connector fitting as well as sealing the connection therebetween by, typically, an ' ⁇ ' ring or similar compressible seal
  • the typical working pressure is 18 bar, requiring ' the application of considerable turning forces, it will be understood that installing such compression fittings below ground can be time consuming and difficult. This problem is exacerbated where the free ends of the pipe have to be cut or otherwise prepared but are already below ground and hence difficult to access.
  • this general arrangement is an improvement on compression fittings in terms of ease of installation and accessibility, it exposes the cut end of the pipe to the internal water pressure, and where the pipe is of laminate construction, such as in the case of contaminated ground water piping, it allows the ingress of water- between and along the laminated layers, even though the outside of the pipe is securely held by the push-fit coupling.
  • the present invention is derived from the realisation that there is a need for an alternative approach to couplings required for laminated pipework in which the foregoing disadvantages are obviated.
  • onnecfor system for connecting laminated pipes, such as contaminated ground plastics pipes
  • the connector system including a plurality of sets of connectors, each set comprising or including a tubular connector fitting and respective pipe-end spigot(s ⁇ , each spigot having a first end for fitting into and supporting the end of a pipe and a second end for fitting into a correspondingly shaped bore in the connector fitting, an ⁇ ' ring seal within the connector for sealing the outside of the pipe end spigot and/or the pipe, the first end of the spigot including one or more continuous teeth for gripping and sealing the inside of the pipe end, a radially expandable split collar having an outer taper corresponding to a correspondingly shaped tapered chamber in the connector fitting whereby upon positive pressure being applied from the inside of the pipe tending to force the pipe out of the connector the tapered collar slides towards the narrower end of the tapered chamber to thereby grip the pipe end and hence the toothed first end of the spigot to
  • the split tapered collar (which may have one or several splits) and tapered chamber collectively act like a Chinese finger lock as the collar grips the end of the pipe in that, the more force exerted from without or within to disconnect the pipe from the connector fitting the tighter is the grip between the fitting and the pipe by virtue of the split ring/collar sliding to the narrower, open, end of the connector fitting.
  • the tapered collar squeezes the end of the pipe against the one or more continuous teeth on the first end of the spigot which, in turn, seals it and thereby prevents de!amination of the pipe caused by internal water pressure such that the higher the pressure the greater the seal integrity.
  • connection of e.g. underground water pipes simply requires that for each such connection the end of the pipe is cut off generally at 90 degrees to the major axis of the pipe, whereafter the first end of the spigot is then pushed or tapped into the pipe end, the second end is inserted all the way into the bore of the connector fitting beyond the split collar and ⁇ ' ring, thereby completing the connection.
  • a further significant advantage is thai the spigot effectively acts as an extension piece for the pipe which, by virtue of having a smooth outer surface can be completely sealed by the ⁇ ! ring against the ingress of water or other contaminants entering through the open end of the connector fitting.
  • a connector for connecting laminated pipes such as contaminated ground plastics pipes
  • the connector including a tubular connector fitting and respective pipe-end spigot, the spigot having a first end for fitting into and supporting the end of a pipe and a second end for fitting into a correspondingly shaped bore in the connector fitting, an ⁇ ' ring seal within the connector for sealing the outside of the pipe end spigot and/or the pipe, the first end of the spigot Including one or more continuous teeth for gripping and sealing the inside of the pipe end, a radially expandable spilt collar having an outer taper corresponding to a correspondingly shaped tapered chamber in the connector fitting whereby upon positive pressure being applied from the inside of the pipe tending to force the pipe out of the connector the tapered coiiar slides towards the narrower end of the tapered chamber to thereby grip the pipe end and hence the toothed first end of the spigot to thereby collectively prevent or inhibit the pipe end from delaminaf
  • a method of connecting pipes below ground including the steps of cutting the end of each pipe to be connected to a connector fitting substantially normal to the major axis of the or each pipe, Inserting into the or each pipe the first end of a spigot according to the first aspect of the invention and thereafter push fitting the second end of the or each spigot into the open end of the connector fitting beyond the ⁇ ' ring in the fitting to thereby seal the end of the pipe and locking and sealing the pipe in position via the split collar and spigot system according to the first aspect of the invention.
  • Figure 1 is an exploded half-cut out perspective view of a connector set adjacent a pipe to be connected thereto
  • Figure 2 is a cross-sectional side elevation of Figure 1 ,
  • Figure 3 is a partly cut out perspective view of the connector set and pipe of Figure i shown in their connected condition
  • Figure 4 is a cross-sectional view of Figure 3.
  • a connector set shown generally at 1 comprises a tubular connector fitting 2 (only part of which is shown) and a pipe- end spigot 3, the latter having a first pipe-connecting end 4 for fitting within the cut end of a laminated pipe 5 and a second connection end 8 for fitting within and through the open end 7 of the connector fitting 2, which second end 8 is itself receivable within a bore 8 at the other end of the connector fitting 2,
  • the outside of the first end of the spigot 4 includes a number of circular ribs or teeth 9 which, in use, act as seals in a manner to he described.
  • the connector fitting 2 has a tapered or frusfo-conicai chamber 10 between the open end 7 and the bore 8 for containing an annular hut split collar 11 and an ' ⁇ ' ring seal 12.
  • the collar 11 has a smooth outwardly tapering outer surface corresponding to the inside of the tapered chamber 10 whereas on the inside of the collar 11 there are circular gripping surfaces in the form of ribs or teeth 13 by which the collar 11 can both radially grip the pips 5 in a manner to be described, and slide along and against the inner surface of the tapered chamber 10 in response to axial pressure on the pipe in a direction towards the open end 7 of the fitting 2, or in response to water pressure within the pipe 5,
  • Figure 3 shows the fully assembled condition of the connector set 1 and pipe 5 in which it will be seen that the second end of spigot 3 is fully received within the bore 8 of the connector fitting 2, in which condition the ⁇ ' ring 12 operates to seal the assembly from the ingress of water or other contaminants through the opening 7 whereas, as it is more clearly seen with reference to Figure 4, the annular spilt collar 11 has radially expanded to accommodate the diameter of the pipe 5 to the extent that its smooth but tapered outer surface bears against the smooth and correspondingly tapered inner surface of the tapered chamber 9, in the position shown, corresponding to no, or negative pressure being applied to the joint, the ⁇ ' ring 12 serves to seal the joint against, the ingress of contaminants, such as groundwater, as weli as stopping water leaking out.
  • the lerrn 'connector fitting' is intended to include all types of pipe fittings including, without limitation, straight couplings, elbow couplings and T-shaped couplings.

Abstract

A connector system and associated connecting method in the system including a plurality of sets of connectors (1), each set comprising or including a tubular connector fitting (2) and respective pipe-end spigot(s) (3), each spigot having a first end (4) for fitting into and supporting the end of a pipe (5) and a second end (6) for fitting into a correspondingly shaped bore (7) in the connector fitting, an 'Ο' ring seal (12) within the connector for sealing the outside of the pipe end spigot and/or the pipe, the first end of the spigot including one or more continuous teeth (9) for gripping and sealing the inside of the pipe end, a radially expandable split collar (11) having an outer taper corresponding to a correspondingly shaped tapered chamber (10) in the connector fitting whereby upon positive pressure being applied from the inside of the pipe tending to force the pipe out of the connector the tapered collar slides towards the narrower end of the tapered chamber to thereby grip the pipe end and hence the toothed first end of the spigot to thereby collectively prevent or inhibit the pipe end from delaminating as a consequence of water ingress due to high internal water pressure.

Description

Improvments in and relating to pipe connectors
This invention relates to pipe connectors, such as plastics pipe connectors of the type typically used to connect pipes underground, such as water pipes supplying water to buildings,
A common method of connecting plastics water pipes of the type described above is by the use of compression fittings in which the tubular connector has threaded ends onto which respectively opposite threaded compression collars may be received, the collars themselves being rotatable with respect to the connector to capture the end of the pipe to both mechanically secure it to the connector fitting as well as sealing the connection therebetween by, typically, an 'Ο' ring or similar compressible seal Given that the typical working pressure is 18 bar, requiring' the application of considerable turning forces, it will be understood that installing such compression fittings below ground can be time consuming and difficult. This problem is exacerbated where the free ends of the pipe have to be cut or otherwise prepared but are already below ground and hence difficult to access. In the case of contaminated ground pipework, where the pipe itself is sheathed with a, typically, wound aluminium cover to prevent the ingress of chemical contaminants into the plastics piping and hence into the water itself, this problem is compounded because of the need to ensure that there is no gap between the compression seal and the outside of the pipe where the connection is made.
The foregoing disadvantages are largely overcome by the use of push-fit fittings the type described in GB2206569 to a connector fitting having a tapered chamber within which is disposed a radially expandable correspondingly tapered collar, and associated '0s ring, the collar acting to grip the pipe with increasing force in response to positive pressure within the pipe tending to force the pipe out of the fitting, in a manner similar to a Chinese fingerloek. To prevent the pipe from buckling under the compressive load of the collar as it is squeezed against the outside of the pipe, the end of the pipe is provided with an internal ferrule and associated flange for ensuring that the position of the ferrule is maintained relative to the connector fitting. However, whilst this general arrangement is an improvement on compression fittings in terms of ease of installation and accessibility, it exposes the cut end of the pipe to the internal water pressure, and where the pipe is of laminate construction, such as in the case of contaminated ground water piping, it allows the ingress of water- between and along the laminated layers, even though the outside of the pipe is securely held by the push-fit coupling.
The present invention is derived from the realisation that there is a need for an alternative approach to couplings required for laminated pipework in which the foregoing disadvantages are obviated.
According to a first aspect of the invention there is provided onnecfor system for connecting laminated pipes, such as contaminated ground plastics pipes, the connector system including a plurality of sets of connectors, each set comprising or including a tubular connector fitting and respective pipe-end spigot(s}, each spigot having a first end for fitting into and supporting the end of a pipe and a second end for fitting into a correspondingly shaped bore in the connector fitting, an Ό' ring seal within the connector for sealing the outside of the pipe end spigot and/or the pipe, the first end of the spigot including one or more continuous teeth for gripping and sealing the inside of the pipe end, a radially expandable split collar having an outer taper corresponding to a correspondingly shaped tapered chamber in the connector fitting whereby upon positive pressure being applied from the inside of the pipe tending to force the pipe out of the connector the tapered collar slides towards the narrower end of the tapered chamber to thereby grip the pipe end and hence the toothed first end of the spigot to thereby collectively prevent or inhibit the pipe end from delaminating as a consequence of water ingress due to high internal water pressure.
With this arrangement, the split tapered collar (which may have one or several splits) and tapered chamber collectively act like a Chinese finger lock as the collar grips the end of the pipe in that, the more force exerted from without or within to disconnect the pipe from the connector fitting the tighter is the grip between the fitting and the pipe by virtue of the split ring/collar sliding to the narrower, open, end of the connector fitting. However, more importantly the tapered collar squeezes the end of the pipe against the one or more continuous teeth on the first end of the spigot which, in turn, seals it and thereby prevents de!amination of the pipe caused by internal water pressure such that the higher the pressure the greater the seal integrity.
With this arrangement the connection of e.g. underground water pipes simply requires that for each such connection the end of the pipe is cut off generally at 90 degrees to the major axis of the pipe, whereafter the first end of the spigot is then pushed or tapped into the pipe end, the second end is inserted all the way into the bore of the connector fitting beyond the split collar and Ό' ring, thereby completing the connection.
A further significant advantage is thai the spigot effectively acts as an extension piece for the pipe which, by virtue of having a smooth outer surface can be completely sealed by the Ό! ring against the ingress of water or other contaminants entering through the open end of the connector fitting.
According to a second aspect of the invention there is provided a connector for connecting laminated pipes, such as contaminated ground plastics pipes, the connector including a tubular connector fitting and respective pipe-end spigot, the spigot having a first end for fitting into and supporting the end of a pipe and a second end for fitting into a correspondingly shaped bore in the connector fitting, an Ό' ring seal within the connector for sealing the outside of the pipe end spigot and/or the pipe, the first end of the spigot Including one or more continuous teeth for gripping and sealing the inside of the pipe end, a radially expandable spilt collar having an outer taper corresponding to a correspondingly shaped tapered chamber in the connector fitting whereby upon positive pressure being applied from the inside of the pipe tending to force the pipe out of the connector the tapered coiiar slides towards the narrower end of the tapered chamber to thereby grip the pipe end and hence the toothed first end of the spigot to thereby collectively prevent or inhibit the pipe end from delaminafing as a consequence of water ingress due to high internal water pressure,
According to a third aspect of the invention there is provided a method of connecting pipes below ground including the steps of cutting the end of each pipe to be connected to a connector fitting substantially normal to the major axis of the or each pipe, Inserting into the or each pipe the first end of a spigot according to the first aspect of the invention and thereafter push fitting the second end of the or each spigot into the open end of the connector fitting beyond the Ό' ring in the fitting to thereby seal the end of the pipe and locking and sealing the pipe in position via the split collar and spigot system according to the first aspect of the invention.
The invention in all its aspects will now be described, with reference to the accompanying drawings, in which:
Figure 1 is an exploded half-cut out perspective view of a connector set adjacent a pipe to be connected thereto,
Figure 2 is a cross-sectional side elevation of Figure 1 ,
Figure 3 is a partly cut out perspective view of the connector set and pipe of Figure i shown in their connected condition, and Figure 4 is a cross-sectional view of Figure 3.
Referring firstly to Figures i and 2, a connector set shown generally at 1 comprises a tubular connector fitting 2 (only part of which is shown) and a pipe- end spigot 3, the latter having a first pipe-connecting end 4 for fitting within the cut end of a laminated pipe 5 and a second connection end 8 for fitting within and through the open end 7 of the connector fitting 2, which second end 8 is itself receivable within a bore 8 at the other end of the connector fitting 2, The outside of the first end of the spigot 4 includes a number of circular ribs or teeth 9 which, in use, act as seals in a manner to he described.
The connector fitting 2 has a tapered or frusfo-conicai chamber 10 between the open end 7 and the bore 8 for containing an annular hut split collar 11 and an 'Ο' ring seal 12.
As can be seen more clearly with reference to Figure 2 the collar 11 has a smooth outwardly tapering outer surface corresponding to the inside of the tapered chamber 10 whereas on the inside of the collar 11 there are circular gripping surfaces in the form of ribs or teeth 13 by which the collar 11 can both radially grip the pips 5 in a manner to be described, and slide along and against the inner surface of the tapered chamber 10 in response to axial pressure on the pipe in a direction towards the open end 7 of the fitting 2, or in response to water pressure within the pipe 5,
Figure 3 shows the fully assembled condition of the connector set 1 and pipe 5 in which it will be seen that the second end of spigot 3 is fully received within the bore 8 of the connector fitting 2, in which condition the Ό' ring 12 operates to seal the assembly from the ingress of water or other contaminants through the opening 7 whereas, as it is more clearly seen with reference to Figure 4, the annular spilt collar 11 has radially expanded to accommodate the diameter of the pipe 5 to the extent that its smooth but tapered outer surface bears against the smooth and correspondingly tapered inner surface of the tapered chamber 9, in the position shown, corresponding to no, or negative pressure being applied to the joint, the Ό' ring 12 serves to seal the joint against, the ingress of contaminants, such as groundwater, as weli as stopping water leaking out. However, in the event of positive pressure being applied to the contents of the pipe 5 the Ό' ring seal 12 pushes against the thick end of the collar 11 , forcing it, and the pipe 5 and spigot 3 towards the open end ? of the fitting 2S but in so doing is increasingly resisted by the gradually narrowing space within the tapered chamber 10, which both resists further axial movement of the collar 11 and increases the grip of the collar on the pipe 5, thereby collectively preventing with increasing force the tendency of the pipe 5 to be ejected from the opening 7, This is countered by the circular teeth 9 pressing into the inside of the pipe 5 to thereby collectively form a watertight seal in this region such that, in particular, water under high pressure cannot travel along the laminations of the pipe 5.
In this description the lerrn 'connector fitting' is intended to include all types of pipe fittings including, without limitation, straight couplings, elbow couplings and T-shaped couplings.

Claims

Claims
1) A connector system for connecting laminated pipes, such as contaminated ground plastics pipes, the connector system including a plurality of sets of connectors (1 ), each set comprising or including a tubular connector fitting (2) and respective pipe-end spigot(s (3)}, each spigot having a first end (4) for fitting into and supporting the end of a pipe (5) and a second end (6) for fitting into a correspondingly shaped bore (7) in the connector fitting, an '0s ring seal (12) within the connector for sealing the outside of the pipe end spigot and/or the pipe, the first end of the spigot including one or more continuous teeth (9) for gripping and sealing the inside of the pipe end, a radially expandable split collar (11 } having an outer taper corresponding to a correspondingly shaped tapered chamber (10) in the connector fitting whereby upon positive pressure being applied from the inside of the pipe tending to force the pipe out of the connector the tapered collar slides towards the narrower end of the tapered chamber to thereby grip the pipe end and hence the toothed first end of the spigot to thereby collectively prevent or inhibit the pipe end from delaminating as a consequence of water ingress due to high internal water pressure.
2) A connector (1) for connecting laminated pipes (5), such as contaminated ground plastics pipes, the connector including a tubular connector fitting (2) and respective pipe-end spigot (3), the spigot having a first end (4) for fitting into and supporting the end of a pipe and a second end (8) for fitting into a correspondingly shaped bore (7) in the connector fitting, an Ό' ring seal (12) within the connector for sealing the outside of the pipe end spigot and/or the pipe, the first end of the spigot including one or more continuous teeth {9} for gripping and sealing the inside of the pipe end, a radially expandable split collar (11) having an outer taper corresponding to a correspondingly shaped tapered chamber (10) in the connector fitting whereby upon positive pressure being applied from the inside of the pipe tending to force the pipe out of the connector the tapered collar slides towards the narrower end of the tapered chamber to thereby grip the pipe end and hence the toothed first end of the spigot to thereby collectively prevent or inhibit the pipe end from de!aminating as a consequence of water ingress due to high internal water pressure.
3) A connector according to claim 2 further characterised in that the radially expandable split collar includes a plurality of split segments which collectively define the collar,
4) A connector according to claim 2 or claim 3 further characterised In that the split collar (11 ) has inwardly facing gripping surfaces in the form of ribs or teeth (13). 5) A method of connecting pipes below ground including the steps., in any convenient order, of cutting the end of each pipe (5) to be connected to a connector fitting (2) substantially normal to the major axis of the or each pipe, inserting info the or each pipe the first end (4) of a spigot (3) according to the second aspect of the Invention and thereafter push fitting the second end (8) of the or each spigot into the open end of the connector fitting beyond the Ό! ring (12) in the fitting to thereby seal the end of the pipe and locking and sealing the pipe in position via the split collar and spigot according to the second aspect of the invention.
EP13808172.4A 2012-11-13 2013-11-13 Improvements in and relating to pipe connectors Withdrawn EP2920500A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB1220412.9A GB201220412D0 (en) 2012-11-13 2012-11-13 Improvements in and relating to pipe connectors
GB1319663.9A GB2510223B (en) 2012-11-13 2013-11-07 Improvements in and relating to pipe connectors
PCT/GB2013/052990 WO2014076472A1 (en) 2012-11-13 2013-11-13 Improvements in and relating to pipe connectors

Publications (1)

Publication Number Publication Date
EP2920500A1 true EP2920500A1 (en) 2015-09-23

Family

ID=47470528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13808172.4A Withdrawn EP2920500A1 (en) 2012-11-13 2013-11-13 Improvements in and relating to pipe connectors

Country Status (4)

Country Link
EP (1) EP2920500A1 (en)
AU (1) AU2013346578A1 (en)
GB (2) GB201220412D0 (en)
WO (1) WO2014076472A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2949984A1 (en) * 2012-11-07 2015-12-02 Hita Technology of Plastic System S.L. Rapid-action coupling for pipes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815940A (en) * 1971-07-22 1974-06-11 Mueller Co Joint for smooth end or flareless pipe
GB2266569B (en) * 1992-04-29 1995-07-12 F W Talbot & Company Limited A connector
AU4885796A (en) * 1995-03-08 1996-09-23 Hepworth Building Products Limited Spigot and socket joint
DE19854854B4 (en) * 1998-11-27 2004-07-15 Henco Industries Nv Connection device with a socket
GB0001547D0 (en) * 2000-01-24 2000-03-15 Guest John D Improvements in or relating to moulded plastics tubular couplings
KR100421693B1 (en) * 2001-05-23 2004-03-18 이중호 Connector for water pipe
US7134204B2 (en) * 2003-08-25 2006-11-14 S & B Technical Products, Inc. Integral restraint system and method of manufacture for plastic pipe
GB2431209A (en) * 2005-10-14 2007-04-18 Hepworth Building Prod Pipe insert for multi-layered pipe
US20110254266A1 (en) * 2010-04-19 2011-10-20 Max Seal, Inc. Self-restraining system for belled pipe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2949984A1 (en) * 2012-11-07 2015-12-02 Hita Technology of Plastic System S.L. Rapid-action coupling for pipes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014076472A1 *

Also Published As

Publication number Publication date
GB2510223B (en) 2015-06-24
GB201319663D0 (en) 2013-12-25
GB201220412D0 (en) 2012-12-26
WO2014076472A1 (en) 2014-05-22
GB2510223A (en) 2014-07-30
AU2013346578A1 (en) 2015-06-11

Similar Documents

Publication Publication Date Title
JP6623261B2 (en) Pipe fitting
EP2825805B1 (en) Fitting with draw mechanism
US8096591B2 (en) Split joint restraint device with dual pipe size capability
CA2939349A1 (en) Clam shell push-to-connect assembly
RU2764352C2 (en) Pipe, in particular plastic pipe for sewage pipelines
US9909701B2 (en) Tube couplings
EA031294B1 (en) Pipe connection fitting
EP3025083B1 (en) Improvements in and relating to pipe coupling
JP4939826B2 (en) How to assemble pipe fittings
US8096731B2 (en) Modular hot stab with improved connection flange
EP2952797B1 (en) Connection joint for pipes to convey gas, compressed air and other fluids
WO2014014812A1 (en) Pipe connector assembly
WO2018071882A1 (en) Connector assemblies for connecting tubulars and related methods
US20120217743A1 (en) Pipe coupling assembly with sleeve locking tabs and associated methods
JP5166173B2 (en) Connection port receiving structure and pipe fittings including the same, pipes
JP5269178B2 (en) How to assemble pipe fittings
US11320074B2 (en) No contact connectors
JP5576691B2 (en) Pipe fitting
EP2920500A1 (en) Improvements in and relating to pipe connectors
CA2732048C (en) Split joint restraint device with dual pipe size capability
EP2564103B1 (en) Adaptor assembly
AU2016427019B2 (en) A connector
US11774016B1 (en) Quick coupling system for vertical fluid conveying conduits
EP3875822A1 (en) A coupler for coupling to a pipe and methods of forming the coupler
RU2539498C2 (en) Fastener of plug of sewage cleanout and inspection junctions

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150522

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170112

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20170725