WO2014043477A1 - Ensemble raccord de tuyau - Google Patents

Ensemble raccord de tuyau Download PDF

Info

Publication number
WO2014043477A1
WO2014043477A1 PCT/US2013/059671 US2013059671W WO2014043477A1 WO 2014043477 A1 WO2014043477 A1 WO 2014043477A1 US 2013059671 W US2013059671 W US 2013059671W WO 2014043477 A1 WO2014043477 A1 WO 2014043477A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
tube
fingers
connector assembly
set forth
Prior art date
Application number
PCT/US2013/059671
Other languages
English (en)
Inventor
Mitchell W. HUNT
Matthew D. Lutzke
Original Assignee
A. Raymond Et Cie
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 A. Raymond Et Cie filed Critical A. Raymond Et Cie
Publication of WO2014043477A1 publication Critical patent/WO2014043477A1/fr

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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/08—Joints with sleeve or socket with additional locking means
    • 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/02—Hose-clips
    • F16L33/025—Hose-clips tightened by deforming radially extending loops or folds
    • 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
    • F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
    • F16L33/2071—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member

Definitions

  • the present invention is related to connector assemblies for fluidly connecting pipes or tubes to one another.
  • the plumbing systems of many buildings in the United States include one or more of copper, chlorinated polyvinyl chloride (CPVC) and/or cross-linked polyethylene (PEX) pipes or tubes.
  • CPVC chlorinated polyvinyl chloride
  • PEX cross-linked polyethylene
  • At least one aspect of the present invention provides for an improved quick connector assembly which can be used to more easily fluidly connect a pipe of one material, such as copper or chlorinated polyvinyl chloride (CPVC), with a tube of another material, such as cross-linked polyethylene (PEX).
  • the quick connector assembly includes a housing with an open bore which extends from a first end to a second end.
  • the housing includes a plurality of deflectable fingers with teeth extending into the open bore.
  • a user inserts the pipe through the first end of the housing. Then, the user inserts a crimping ring over one end of the tube and inserts the end of the tube and crimping ring over the second end of the housing.
  • a crimping tool to crimp the tube onto the outer surface of the housing to establish a fluid-tight seal and also to deflect the fingers inwardly until the teeth bite into the pipe.
  • a very secure connection is established between the pipe and tube without the use of welding, soldering, adhesives or any special equipment except for the crimping tool.
  • all of the components of the quick connector assembly may be formed of materials other than brass, lead or other materials which could contaminate the fluid flowing between the pipe and the tube. Even further, this design may be scaled to accommodate pipes and tubes of any desirably type and size.
  • Figure 1 is a perspective and elevation view of an exemplary quick connector assembly attached to a copper or CPVC pipe and a PEX reducer;
  • Figure 2 is a perspective and elevation view of the exemplary quick connector assembly of Figure 1;
  • Figure 3 is a side elevation view of the exemplary quick connector assembly of Figure 2;
  • Figure 4 is a cross-sectional view of the exemplary quick connector assembly of Figure 2;
  • Figure 5 is a perspective, fragmentary and cross-sectional view showing the copper or CPVC pipe inserted within the exemplary quick connector assembly of Figure 2 before insertion into the PEX reducer;
  • Figure 6 is a perspective and elevation view showing an exemplary crimping ring and an exemplary crimping tool for crimping the crimping ring and the PEX reducer onto the exemplary quick connector assembly of Figure 2;
  • Figure 7 is a cross-sectional view of the exemplary quick connector of Figure
  • an exemplary quick connector assembly 20 is shown in engagement with and establishing fluid communication between a first tube 22 of a first material and a second tube 24 of a second material that is different than the first material in Figure 1.
  • the first tube 22 is either of a copper or a chlorinated polyvinyl chloride (CPVC) material and is hereinafter referred to as the "copper or CPVC pipe”.
  • the second tube 24 of the exemplary embodiment is a reducer of a cross- lined polyethylene (PEX) material, such as PEX-A, PEX-B or PEX-C, and is hereinafter referred to as "the PEX reducer".
  • PEX polyethylene
  • the exemplary reducer 24 is a PEX three quarter inch (3/4") to one half inch (1/2") reducer.
  • the second tube 24 could alternately be a tube with a generally constant diameter, any other size of reducer or an expander.
  • the exemplary quick connector assembly 20 may find uses in the plumbing systems of many residential, industrial or commercial buildings by serving as a bridge between an existing copper or CPVC pipe 22 in the building and new PEX tubing.
  • the copper or CPVC pipe 22 and the PEX reducer 24 could be made of a range of different materials, and the quick connector assembly 20 could also find uses in a range of applications other than the plumbing systems of buildings.
  • the exemplary quick connector assembly 20 includes a housing 26 which extends along an axis A from an open first end 28 to an open second end 30.
  • the inner surface of the housing 26 includes a ring-groove, which supports an O-ring 32 for establishing the fluid tight seal between the copper or CPVC pipe 22
  • the housing 26 of the exemplary quick connector assembly 20 also includes a plurality of metal teeth 34 which extend radially inwardly from an inner surface of the housing 26 to engage or bite into the copper or CPVC pipe 22, thereby restricting pull-out of the copper or CPVC pipe 22, as will be discussed in further detail below.
  • the teeth 34 are angled towards the second end 30 of the housing 26 to further improve their effectiveness at resisting pull-out of the copper or CPVC pipe 22 from the housing 26.
  • the housing 26 is preferably overmolded around a portion of the teeth 34 to establish the connection between the teeth 34 and the housing 26.
  • the teeth 34 could be attached to the housing 26 through any suitable process.
  • the teeth 34 are preferably formed of a corrosion resistant metal, such as stainless steel, but may be formed of any suitable metal or any other suitable type of material.
  • the housing 26 is preferably made of a polymeric material and is preferably formed through an injection molding process. However, it should be appreciated that the housing 26 may be formed of a range of different materials and through any suitable forming process.
  • the exemplary housing 26 also includes a plurality of circumferentially spaced slits which extend in an axial direction from the first end 28 of the housing 26 to approximately an axial midpoint of the housing 26. Between adjacent ones of the slits, the housing 26 has fingers 36 which extend from approximately the axial midpoint of the housing 26 to the first end 28.
  • each of the fingers 36 includes a pair of teeth 34 for biting into the copper or CPVC pipe 22.
  • the fingers 36 may have any number of teeth 34.
  • the fingers 36 are deflectable in a radially outward direction to allow insertion of the copper or CPVC pipe 22 into the housing 26 and past the teeth 34.
  • the fingers 36 are bendable to allow the copper or CPVC pipe 22 to be inserted past the radially inwardly extending teeth 34 on the fingers 36.
  • the angling of the teeth 34 causes the fingers 36 to automatically deflect in response to insertion of the copper or CPVC pipe 22 into the housing 26.
  • the housing 26 includes six fingers 36 which are generally uniformly spaced from one another. However, it should be appreciated that the housing 26 could alternately include any suitable number of fingers 36, and the fingers 36 could have variable widths and spacing.
  • the second end 30 of the housing 26 includes a pair of flanges 38, 40 with one of the flanges 38 being an inner flange 38 that extends radially inwardly from the inner surface and the other flange 40 being an outer flange 40 that extends radially outwardly from the outer surface.
  • the inner flange 38 defines a stopping point for the insertion of the pipe 22 into the housing 26.
  • the outer flange 40 extends circumferentially around the housing 26 and provides for a fluid tight seal between the housing 26 and the PEX tube 24 once the PEX tube 24 is crimped onto the outer surface of the housing 26.
  • the housing 26 also includes a plurality of windows 44 which are circumferentially spaced from one another and are disposed axially between the O-ring 32 and the inner flange 38 to provide a visual indication to a user when the copper or CPVC pipe 22 is properly inserted into the housing 26, i.e. the end of the copper or CPVC pipe 22 will be visible through the windows 44 if it has passed the O-ring 32 in an axial direction. As such, these windows 44 provide a safety feature to ensure that the user inserts the copper or PVC pipe 22 into the proper location within the housing 26.
  • two of the fingers 36 include tabs 42 that extend radially outwardly at the first end 28 of the housing 26 to present a stopping point or location for the PEX reducer 24 and a crimping ring 48 when they are inserted over the housing 26.
  • insertion of the copper or CPVC pipe 22 into the housing 26 is made simple by the inner flange 38 on the second end 30 of the housing 26, and insertion of the housing 26 into the PEX reducer 24 is made simple by the tabs 42 on the first end 28 of the housing 26.
  • Each of the fingers 36 includes a plurality of ribs 46 which are spaced axially from one another and extend radially outwardly from the outer surfaces of the fingers 36 of the housing 26.
  • ribs 46 which are spaced axially from one another and extend radially outwardly from the outer surfaces of the fingers 36 of the housing 26.
  • the PEX reducer 24 and the crimping ring 48 act on the ribs 46 to urge the teeth 34 against the outer surface of the copper or CPVC pipe 22. This provides a force to resist pull-out of the copper or CPVC pipe 22 from the housing 26.
  • the crimping of the PEX reducer 24 onto the ribs 46 also restricts pull-out of the housing 26 from the PEX reducer 24.
  • the crimping of the PEX reducer 24 has the effect of locking both the copper or CPVC pipe 22 and the PEX reducer 24 into engagement with the housing 26.
  • the process of attaching the copper or CPVC pipe 22 to the PEX reducer 24 with the exemplary quick connector assembly 20 is described as follows. First, a user inserts the copper or CPVC pipe 22 into the housing 26 through the open first end 28 until he or she feels the end of the pipe 22 contact the inner flange 38. This will ensure that the copper or CPVC pipe 22 is sealed against the O-ring 32 within the housing 26. During this process, the fingers 36 may deflect radially outwardly as the end of the copper or CPVC pipe 22 passes the teeth 34. The user can double check that the copper or CPVC pipe 22 is properly inserted into and sealed with the housing 26 by checking to see if the end of the copper or CPVC pipe 22 is visible through the windows 44.
  • the user continues by sliding a crimping or clamping ring 48 over the larger end of the PEX reducer 24 and then then inserting the second end 30 of the housing 26 into the larger end of the PEX reducer 24 until the PEX reducer 24 abuts the tabs 42 at the ends of the fingers 36.
  • the user then uses a crimping tool 50 (shown in Figure 6) on the crimping or clamping ring 48 to crimp or clamp the PEX reducer 24 against the housing 26.
  • the crimping or clamping connection of the PEX reducer 24 about the ribs 46 of the fingers 36 biases the teeth 34 on the fingers 36 against the outer surface of the copper or CPVC pipe 22.
  • the crimping or clamping engagement of the PEX reducer 24 onto the housing 26 establishes a fluid tight seal between the housing 26 and the PEX reducer 24.
  • This entire process is very quick and requires no adhesives, soldering or other specialty tools other than the crimping or clamping tool.
  • the resulting connection between the copper or CPVC pipe 22 is more secure than the connections established by using other known adapters or connector assemblies.
  • the exemplary quick connector assembly 20 does not require any brass, lead or other metals to be exposed to the fluids flowing through the copper or CPVC pipe 22 and the PEX reducer 24.
  • a similar process may be followed to join a copper or CPVC pipe 22 with any other type of PEX tube.
  • Another aspect of the present invention is a method of establishing fluid communication between a first tube, such as a copper or CPVC pipe 22, and a second tube, such as a PEX reducer 24.
  • the method includes the step of preparing a housing 26 with an open bore which extends from an open first end 28 to an open second end 30 and has a plurality of fingers 36 that are spaced circumferentially from one another and also a plurality of radially inwardly extending teeth 34 that extend from the fingers 36 into the open bore and wherein at least one of the fingers 36 has a radially outwardly extending rib 46.
  • the method continues with the step of inserting the first tube 22 into the open bore of the housing 26 through the open first end 28.
  • the fingers 36 of the housing 36 may deflect when the end of the first tube 22 passes the teeth 34 in the axial direction.
  • the method then proceeds with the step of inserting a crimping ring 48 over a portion of the second tube 24.
  • the method continues with the step of inserting the second end 30 of the housing 26 into the second tube 24 until the ribs 46 on the housing 26 are aligned with the crimping ring 48.
  • the method then proceeds with the step of crimping the crimping ring 48 around the ribs 46 of the housing 26 to urge the teeth 34 on the fingers 36 into the first tube 22 in the open bore of the housing 26 to restrict pull-out of the first tube 22 from the open bore of the housing 26.
  • the method may further include the step of establishing a fluid-tight seal between the first tube 22 and the housing 26 with an O-ring 32.
  • the method may also proceed with the step of establishing a fluid-tight seal between the second tube 24 and a radially outwardly extending flange 40 on the housing 26.

Landscapes

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

Abstract

Ensemble raccord destiné à raccorder et à établir une communication fluidique entre un premier tube d'un premier matériau et un second tube d'un second matériau qui est différent du premier matériau. L'ensemble raccord comprend un carter doté d'un trou ouvert qui s'étend depuis une première extrémité ouverte jusqu'à une seconde extrémité ouverte. Le carter possède une pluralité de griffes qui sont circonférentiellement espacées les unes des autres et qui peuvent être déviées dans une direction radiale. Au moins une des griffes possède au moins une dent s'étendant radialement qui s'étend dans le trou ouvert du carter pour mordre dans le premier tube en réponse à la contraction du second tube autour des griffes.
PCT/US2013/059671 2012-09-13 2013-09-13 Ensemble raccord de tuyau WO2014043477A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261700538P 2012-09-13 2012-09-13
US61/700,538 2012-09-13

Publications (1)

Publication Number Publication Date
WO2014043477A1 true WO2014043477A1 (fr) 2014-03-20

Family

ID=50278712

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/059671 WO2014043477A1 (fr) 2012-09-13 2013-09-13 Ensemble raccord de tuyau

Country Status (1)

Country Link
WO (1) WO2014043477A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4019225A1 (fr) * 2020-12-28 2022-06-29 Goodrich Corporation Appareils de tubage en métal/plastique combiné et procédés de fabrication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030006609A1 (en) * 2001-07-06 2003-01-09 Yates Ronnie A. Flexible tubing connector
WO2006037092A2 (fr) * 2004-09-28 2006-04-06 Watts Sea Tech, Inc. Connecteur
US7900972B2 (en) * 2007-03-29 2011-03-08 King Yuan Wang Fluid connector for garden use
US20110309614A1 (en) * 2010-06-22 2011-12-22 John Guest International Limited Tube coupling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030006609A1 (en) * 2001-07-06 2003-01-09 Yates Ronnie A. Flexible tubing connector
WO2006037092A2 (fr) * 2004-09-28 2006-04-06 Watts Sea Tech, Inc. Connecteur
US7900972B2 (en) * 2007-03-29 2011-03-08 King Yuan Wang Fluid connector for garden use
US20110309614A1 (en) * 2010-06-22 2011-12-22 John Guest International Limited Tube coupling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4019225A1 (fr) * 2020-12-28 2022-06-29 Goodrich Corporation Appareils de tubage en métal/plastique combiné et procédés de fabrication
US11906095B2 (en) 2020-12-28 2024-02-20 Goodrich Corporation Combined metal / plastic tubing apparatuses and methods of manufacture

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