Connect public, paid and private patent data with Google Patents Public Datasets

Fluid conduit system and fittings therefor

Download PDF

Info

Publication number
US20080048448A1
US20080048448A1 US11931347 US93134707A US2008048448A1 US 20080048448 A1 US20080048448 A1 US 20080048448A1 US 11931347 US11931347 US 11931347 US 93134707 A US93134707 A US 93134707A US 2008048448 A1 US2008048448 A1 US 2008048448A1
Authority
US
Grant status
Application
Patent type
Prior art keywords
tube
portion
fitting
seal
structural
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.)
Abandoned
Application number
US11931347
Inventor
Tommy Jamison
H. Dennis
Kevin Gay
Original Assignee
Jamison Tommy L
Dennis H G
Kevin Gay
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

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/141Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/141Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside
    • F16L13/143Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside with a sealing element placed around the male part before crimping or rolling

Abstract

A fluid conduit system that employs fittings having ends with a structural portion and a seal portion. The ends of the fittings are inserted into a tube, which may be a hard, i.e., rigid, or soft, i.e., flexible, tube. The seal portion sealingly engages the inner diameter of the tube upon its insertion into the tube. The tube is deformed to prevent the fitting from being withdrawn from the tube; the portion of the tube in the immediate vicinity of each seal that forms the seal portion is not deformed. A method for forming a fluid conduit system is also provided.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • [0001]
    This application is a division of U.S. application Ser. No. 10/739,983 filed Dec. 18, 2003, which claims the benefit of U.S. Provisional Application Ser. No. 60/470,599 filed May 15, 2003.
  • FIELD OF THE INVENTION
  • [0002]
    The present invention generally relates to fluid conduit systems that may be employed, for example, for routing and delivering potable water, gases or chemicals.
  • BACKGROUND OF THE INVENTION
  • [0003]
    Sweat soldering has long been used for the supply and distribution of potable water, especially in single family residential constructions, due to its durability and the relative ease with which solder connections were made. Modern changes to various plumbing codes, which mandate lead-free solders and water soluble fluxes, have, however, greatly increased the difficulty in making sweat solder connections as these lead-free solders and water soluble fluxes tend to be less tolerant of certain variables (e.g., the presence of oxidation or the use of excessive heat) than the lead-based solders and acid-based fluxes that had been previously used.
  • [0004]
    Furthermore, the sweat soldering task is relatively time consuming as compared to the crimp-type connections that are employed in a PEX (i.e., cross-linked polyethylene) system. A PEX system utilizes lengths of plastic PEX tubing, barbed fittings (which are inserted into the PEX tubing) and collars that are employed to crimp the tubing to the fitting. As the crimping operation may be accomplished in roughly ¼ to ½ the time that is necessary to complete the soldering of a sweat solder joint, plumbing contractors have observed the potential for substantial savings in labor costs by utilizing a PEX system.
  • [0005]
    In an effort to eliminate the disadvantages of sweat solder connections, manufacturers such as Viega, have introduced fittings that may be crimped directly to conventional lengths or sticks of hard drawn copper tubing. The ProPress system marketed by Viega includes an inner O-ring seal that is carried on the inner diameter of the fitting; the O-ring sealingly engages the tubing upon insertion of the tube into the fitting. A crimping tool is subsequently employed to crimp the fitting to thereby fix the fitting and the tube to one another. This system, however, is known to suffer from several drawbacks.
  • [0006]
    One such drawback concerns the sealing of the fitting to the outside surface of the copper tubing. It is well known in the art that the outside surface of a copper tube is relatively susceptible to imperfections during its formation via extrusion, such as gouges or scratches, as well as relatively susceptible to damage during shipping and storage. As such imperfections and damage may adversely affect the ability of the fittings to seal against the outer surface of the tubing, manufacturers of the copper tubing typically subject the extruded sticks of tubing to an eddy current test to verify the integrity of each stick's outside surface. This testing is costly and as we have found, leaks are possible even when the tubing conforms to published standards. Accordingly, it appears that a relatively time consuming manual inspection must be made of each tube prior to its coupling to a fitting.
  • [0007]
    Another drawback concerns the incompatibility of the known systems with lengths of annealed copper tubing. In this regard, the annealed copper tubing is readily deformable so that the crimping process fails to secure the fitting and the annealed copper tubing together. Accordingly, plumbing contractors must equip themselves with two discrete sets of fittings: one set of crimp fittings that is compatible with the hard drawn sticks of tubing, and another set (e.g., flare or compression fittings) that are compatible with the annealed coils of tubing.
  • [0008]
    In view of the aforesaid drawbacks, there remains a need in the art for an improved fluid conduit system that permits the joining of all types of copper tubing with one style of fitting.
  • SUMMARY OF THE INVENTION
  • [0009]
    In one form, the present invention provides a fluid conduit system having a fluid conduit, a crimp and a fitting. The crimp is formed on the fluid conduit and has an inside dimension that is smaller than the inner diameter of the fluid conduit. The fitting has a structural portion and a seal portion. The structural portion has at least one crimp groove into which the crimp is at least partially received. The seal portion is carried by the structural portion and sealingly engages the inner diameter of the fluid conduit. The seal portion is axially offset from the crimp groove.
  • [0010]
    In another form, the present invention provides a method for forming a fluid conduit system. The method includes: providing a fitting having a structural portion and a seal portion, the seal portion being coupled to the structural portion; inserting the structural portion into an annealed copper tube such that the seal portion sealingly engages an inside surface of the annealed copper tube and a portion of the structural portion outwardly extends from an end of the annealed copper tube; and deforming only the annealed copper tube to couple the fitting to the annealed copper tube.
  • [0011]
    In still another form, the present invention provides a tool for securing a fitting to a tube. The tool includes a jaw and a pair of die members. The jaw is disposed about a first axis and includes a pair of opposed members. Each of the die members is pivotably coupled to an associated one of the opposed members and pivotable about a second axis that is generally perpendicular to the first axis.
  • [0012]
    Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0013]
    Additional advantages and features of the present disclosure will become apparent from the subsequent description and the appended claims, taken in conjunction with the accompanying drawings, wherein:
  • [0014]
    FIG. 1 is a schematic illustration of a fluid conduit system constructed in accordance with the teachings of the present disclosure;
  • [0015]
    FIG. 2 is an exploded section view of a portion of the fluid conduit system of FIG. 1, illustrating the construction of a fitting constructed in accordance with the teachings of the present disclosure;
  • [0016]
    FIG. 3 is an exploded section view similar to FIG. 2 but illustrating another fitting constructed in accordance with the teachings of the present disclosure;
  • [0017]
    FIG. 4 is an exploded section view similar to FIG. 2 but illustrating yet another fitting constructed in accordance with the teachings of the present disclosure;
  • [0018]
    FIG. 5 is a sectional view of a portion of the fluid conduit system of FIG. 1 illustrating the fitting as coupled to a fluid conduit;
  • [0019]
    FIG. 6 is a perspective view of a tool for coupling fittings and fluid conduit to one another, the tool being constructed in accordance with the teachings of another aspect of the present disclosure;
  • [0020]
    FIG. 7 is another perspective view of the tool of FIG. 6, illustrating the use of a disconnectable jaw assembly;
  • [0021]
    FIG. 8 is a perspective view of a portion of the tool of FIG. 6 illustrating the employment of the tool in a crimping operation;
  • [0022]
    FIG. 9 is an exploded section view illustrating the use of the fitting of the present disclosure with differently sized tubes;
  • [0023]
    FIG. 10 is an exploded section view illustrating the use of the fitting of the present disclosure with different types of tubing materials;
  • [0024]
    FIGS. 11 and 12 are sectional views of another style of fitting constructed in accordance with the teachings of the present disclosure;
  • [0025]
    FIGS. 13 and 14 are sectional views of yet another style of fitting constructed in accordance with the teachings of the present disclosure;
  • [0026]
    FIG. 15 is a side elevation view of another tool constructed in accordance with the teachings of the present disclosure;
  • [0027]
    FIG. 16 is a front view of a portion of the tool of FIG. 15;
  • [0028]
    FIG. 17 is a front view of yet another tool constructed in accordance with the teachings of the present disclosure;
  • [0029]
    FIG. 18 is a sectional view of the tool shown in operative association with a tube and a fitting constructed in accordance with the teachings of the present disclosure;
  • [0030]
    FIG. 19 is an exemplary family of fittings constructed in accordance with the teachings of the present disclosure;
  • [0031]
    FIG. 20 is an illustration of an exemplary reducing fitting constructed in accordance with the teachings of the present disclosure;
  • [0032]
    FIG. 21 is an illustration of another exemplary fitting constructed in accordance with the teachings of the present disclosure;
  • [0033]
    FIG. 22 is an side elevation of another fitting constructed in accordance with the teachings of the present disclosure;
  • [0034]
    FIG. 23 is a sectional view taken along the line 23-23 of FIG. 22;
  • [0035]
    FIG. 24 is an illustration of a portion of yet another set of fittings constructed in accordance with the teachings of the present disclosure; and
  • [0036]
    FIG. 25 is a side elevation of an assembled pair of the fittings that are shown in FIG. 24.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • [0037]
    With reference to FIG. 1 of the drawings, an exemplary fluid conduit system constructed in accordance with the teachings of the present disclosure is generally indicated by reference numeral 10. The fluid conduit system 10 is illustrated to include a plurality of tubes 12 and a plurality of fittings 14 that are employed to join the tubes 12 to one another. In the example provided, the fluid conduit system 10 is employed to route and deliver potable water and as such, the tubes 12 may be constructed of copper and include conventional commercially available hard drawn tubing sticks 12 a and conventional soft tubing 12 b (also referred to herein as “annealed”, or “flexible metal” tubing) of the type that is commercially available in a coiled form from sources such as Mueller Industries, Inc. of Memphis, Tenn. Those skilled in the art will appreciate, however, that the tubes 12 may be made out of any suitable metal or plastic material and that the teachings of the present disclosure have application to fluid conduit systems that route and deliver other types of fluids, including gases. With reference to FIG. 2, each tube 12 is constructed such that it defines an internal diameter 20 of a predetermined size and it's inside surface 22 is generally smooth and suited for sealing against an associated fitting 14.
  • [0038]
    The fitting 14 includes a structural portion 30 and a seal portion 32. Those skilled in the art will appreciate that although the particular fitting illustrated is a coupling or union, the teachings of the present disclosure have applicability to various other types of fittings, including elbows, tees, caps, adapters, reducers, bushings, etc.
  • [0039]
    The structural portion 30 may be made from any structural material, such as plastic, ceramic, copper, brass, bronze, stainless steel or another metal. In the example provided, the structural portion 30 is made of copper so as to eliminate the potential for a galvanic reaction with the copper of the tubes 12. The structural portion 30 may include a tubular end 40 that is configured to be inserted into an end 42 of an associated tube 12. Optionally, the structural portion 30 may further include an abutting flange 44 that abuts the tubular end 40 and which may serve as a “stop” that limits the distance in which the tubular end 40 may be inserted into the tube 12.
  • [0040]
    The inner surface 48 of the tubular end 40 may be smooth and may include a chamfer 50 or similar feature that is configured to minimize turbulence and pressure losses, while the outside surface 51 of the tubular end 40 may include one or more discontinuities 52. Where employed, each discontinuity 52 aids in axially fixing the tubular end 40 to the seal portion 32 and as such may be a step, a groove or recess, a tooth-like feature or a barb-like feature, for example, that abuts or engages the seal portion 32. In the example provided, we employed four equally spaced apart barbs 52 a that are tapered to facilitate the insertion of the tubular end 40 into the seal portion 32, but which tend to engage the seal portion 32 to thereby inhibit the axial separation or withdrawal of the tubular end 40 from the seal portion 32.
  • [0041]
    Those skilled in the art will appreciate from this disclosure, however, that despite the discrete and independent construction of the seal portion 32 in the particular embodiment illustrated, various other processes may be employed to fabricate the seal portion 32 and couple it to the tubular end 40. For example, overmolding may be employed to form the seal portion 32 directly onto the tubular end 40 of the structural portion 30.
  • [0042]
    The seal portion 32 is engaged to the tubular end 40 and may be configured to seal against both the inside surface 22 of the tube 12 and the outside surface 51 of the tubular end 40. In the particular embodiment illustrated, the seal portion 32 is a collar or sleeve 60 that may be made of a suitable material, such as nylon, TEFLON®, EPDM, or a material permitted under NSF 61 standards. Those skilled in the art will appreciate, however, that the seal portion 32 could be otherwise configured. For example, the seal portion 32 may include one or more seal members, such as O-rings 62, as illustrated in FIG. 3, or may include a sleeve 66 that carries one or more seal members 68 as illustrated in FIG. 4. Furthermore, in those embodiments that employ a seal portion 32 with a sleeve (e.g., sleeve 60 or sleeve 66), the sleeve could be configured with an annular collar 70 as shown in FIGS. 2 and 4, which may be configured to abut (and optionally seal against) the end 42 of the tube 12. In these embodiments, the structural portion 30 may include an abutting flange 44 that is positioned against the annular collar 70 opposite the end 42 of the tube 12 to thereby support the annular collar 70 as well as to serve as a “stop” that limits the distance in which the tubular end 40 may be inserted into the tube 12. Alternately or in addition to any of the aforementioned seal configurations, a sealant, such as an anaerobic sealant, may be applied to the fitting 14 and/or the tube 12 to further ensure sealing engagement between the fitting 14 and the tube 12.
  • [0043]
    Returning to FIG. 2, the fitting 14 in this example may be readily withdrawn from the tube 12 and as such, a means for axially securing the tube 12 and the fitting 14 to one another is necessary. Furthermore, in this example the sleeve 60 does not seal against either the inside surface 22 of the tube 12 or the outside surface 51 of the tubular end 40 upon its insertion into the end 42 of the tube 12, since the sleeve 60 is about 0.002 to about 0.005 inch smaller in diameter than the internal diameter 20 of the tube 12. Accordingly, a tool 80 (FIGS. 6 and 7) is employed in this example to form a crimp 81 or otherwise deform the end 42 of the tube 12 (see, e.g., FIG. 5) to inhibit the withdrawal of the fitting 14 from the tube 12 as well as to cause the sleeve 60 to sealingly engage both the inside surface 22 of the tube 12 and the outside surface 51 of the tubular end 40 of the fitting 14. Employment of the crimp 81 or another such deformation to secure the tube 12 and the fitting 14 to one another is significant in that no flames are employed and the process can be completed on tubing in some instances where a fluid, such as water, is still contained in the tube 12.
  • [0044]
    Although the crimp 81 has been illustrated as being continuous about the perimeter of the tube 12, those skilled in the art will appreciate from this disclosure that the crimp 81 may be formed otherwise. For example, the crimp 81 may consist of one or more crimp sections that extend about a portion of the perimeter of the tube 12.
  • [0045]
    In FIGS. 6 and 7, a tool constructed in accordance with another aspect of the present disclosure is generally indicated by reference numeral 80. The tool 80 may include a tool body 82 and a jaw assembly 84. The tool body 82 may be generally similar to a Model 320-E Crimp Tool that is commercially available from the Ridge Tool Company and as such, a detailed discussion of the tool body 82 need not be provided herein. Briefly, the tool body 82 may include a linear actuator 86 that may be selectively actuated to operate the jaw assembly 84. The linear actuator 86 may include a barrel 88, which is optionally rotatable about its longitudinal axis 90. Those skilled in the art will appreciate from this disclosure that the tool body 82 may alternatively be powered in another manner, such as manually or hydraulically. As the plumbing contractor will likely employ several different sizes of tubing, several differently sized jaw assemblies 84 are provided, allowing the plumbing contractor to remove a jaw assembly 84 of one size from the tool body 82 and install a jaw assembly 84 of another size to the tool body 82 as needed.
  • [0046]
    With additional reference to FIG. 8, the jaw assembly 84 may include a jaw 90 and a pair of discrete die members 92 a and 92 b. The jaw 90 may include a pair of opposed members 94 that may be coupled to the barrel 88 of the tool body 82. Operation of the linear actuator 86 opens and closes the opposed members 94 in a conventional and well known manner. The die members 92 a and 92 b cooperate to define a die cavity 96 that delineates the shape and configuration of the crimp or deformation. The die members 92 a and 92 b may be coupled to the opposed members 94 so as to be pivotable relative to one another about an axis 98 that may be generally normal to the longitudinal axis 90 of the barrel 88. In the particular example provided, each die member 92 a and 92 b may include a stem 100 that may be inserted into an associated one of the opposing members 94. A fastener, such as a conventional external snap ring (not shown), may be employed to retain the stem 100 to the opposing member 94 in a manner that permits rotation of the stem 100 yet inhibits its withdrawal from the opposing member 94.
  • [0047]
    Configuration of the jaw assembly 84 with pivotable die members 92 a and 92 b permits the crimp or deformation to be formed more precisely. More specifically, the die members 92 a and 92 b tend to self-center on the tube 12 (i.e., so that the longitudinal axis of the die cavity 96 is generally coincident with the longitudinal axis of the tube 12) so that in those instances where the user does not align the jaw 90 absolutely perpendicular to the tube 12, the die members 92 a and 92 b will pivot upon contact with the tube 12 such that the axis 96 a of the die cavities 96 is coincident with the axis 12 d of the tube 12 as is illustrated in FIG. 8.
  • [0048]
    With regard to the embodiments of FIGS. 3 and 4, crimping or deformation of the tube 12 may be employed to secure the fitting 14 to the tube 12 in an axial direction. Depending on the size and sealing capacity of the seal portion 32, however, crimping or deformation in an area proximate the seal portion 32 or portions thereof may be unnecessary or undesirable. In FIG. 3, for example, the O-rings 62 of the seal portion 32, which are located in a seal groove 62 b formed in the structural portion 30, are sized to sealingly engage the inside surface 22 of the tube 12 upon insertion of the fitting 14 into the tube 12 so that deformation of the tube 12 in the area proximate the O-rings 62 is not necessary to create a seal between the fitting 14 and the tube 12. Given that each O-ring 62 is configured to seal against both the tube 14 and the structural portion 30, the use of multiple O-rings 62 provides a level of sealing redundancy. Of course, those skilled in the art will appreciate that sealing redundancy is optional and need not be employed.
  • [0049]
    As another example, the O-ring 68 of the seal portion 32 illustrated in FIG. 4 also seals against the inside surface 22 of the tube 12 upon insertion of the fitting 14 into the tube 12. The tube 12, however, is crimped or deformed so that the inside surface 22 of the end 42 of the tube 12 is abutted against the collar 66. The collar 66 serves to limit the deformation of the end 42 of the tube 12 so that the O-ring 68 is deformed in a predetermined manner, while the crimp or deformation serves to inhibit the withdrawal of the fitting 14 from the tube 12. Optionally, the collar 66 may also be deformed so as to provide additional sealing capacity between the tubular end 40 and the inside surface 22. In the example provided, a groove 102 in the collar 66 constrains the O-ring 68 to limit the manner and degree to which the O-ring 68 deforms and thereby ensure that the sealing integrity of the O-ring 68 is not compromised during the installation of the fitting 14.
  • [0050]
    One aspect of the flexibility of our fluid conduit system is shown in FIG. 9 wherein the structural portion 30 of the fitting 14 is illustrated as being suitable for use with several differently sized tubes 12 e and 12 f. In this example, seal portions 32 e and 32 f are provided which vary in their outer diameter so as to be readily employed to seal against the inside surface of the tubes 12 e and 12 f, respectively. This flexibility is noteworthy since it permits significant reductions in the fabrication costs (e.g., tooling, losses in productivity as a result of change-over) of the fittings as compared to the known fittings, which are associated with a single and specific tube size.
  • [0051]
    Another aspect of the flexibility of our fittings 14 is illustrated in FIG. 10. In this example, the seal portion 32 is illustrated as being optional, so that the fitting 14 may be coupled to a tube 12 in accordance with the teachings of the present disclosure or to a different conduit material, such as commercially available PEX tubing 110. In situations where the structural portion 30 is to be coupled to a tube 12 in accordance with the teachings of the present disclosure, the seal portion 32 may be coupled or otherwise associated with the tubular end 40 and the fitting 14 installed into the tube 12. If, on the other hand, a different tubular material is to be employed, a different seal (not shown) may be employed or the seal portion 32 may be omitted altogether. In the example shown, the tubular end 40 of the structural portion 30 may be inserted into the PEX tubing 110 and coupled thereto in a conventional manner (as through an external crimp ring 112, for example). This flexibility is noteworthy since it facilitates a reduction in the overall quantity and cost of plumber's inventory through the stocking a single type of fitting that is suitable for use with several types of fluid conduit systems.
  • [0052]
    While the fitting 14 has been described thus far as including a generally cylindrical tubular end 40, those skilled in the art will appreciate that the disclosure, in its broader aspects, may be constructed somewhat differently. For example, the fitting may be formed with a bullhead 120 or such as shown in FIGS. 11 and 12 to further resist axial separation of the fitting 14 and the tube 12. In these embodiments, the tubular end 40 a is installed to the end 42 of the tube and the end 42 of the tube 12 is crimped or deformed so as to define a reduced diameter portion 124 that abuts the bullhead 120 to thereby inhibit the withdrawal of the tubular end 40 a from the tube 12. The fittings 14 of FIGS. 11 and 12 are illustrated to be substantially similar to one another, differing only in that the fitting 14 of FIG. 11 employs two O-ring seals 62, whereas the fitting 14 of FIG. 12 employs a sleeve 60 that is similar to that shown in FIG. 2 but which is overmolded onto or otherwise permanently secured to the tubular end 40 a of the structural portion 30.
  • [0053]
    FIGS. 13 and 14 illustrate yet another embodiment of the fitting 14. In this embodiment, the tubular end 40 b includes one or more grooves 130, which are illustrated to be U-shaped in the example provided. As with the fittings 14 that are illustrated in FIGS. 3 and 4, the seal portion 32 of the fittings 14 may be configured so as to seal against the inside surface 22 of the tube 12 upon insertion so that the tube 12 need not be deformed to effect sealing engagement between the seal portion 32 and either of the inside surface 22 of the tube 12 or the outside surface 51 of the tubular end 40 of the structural portion 30. In the particular example provided, no portion of the tube 12 in the immediate vicinity of each seal (e.g., O-ring 62) that forms the seal portion 32 is deformed.
  • [0054]
    A tool may be employed to deform, crimp or extrude portions 142 of the tube 12 into each of the grooves 130 to thereby inhibit axial movement of the structural portion 30 relative to the tube 12. The tool may be powered by an appropriate means (e.g., manually, hydraulically, pneumatically or electrically). One suitable tool 140 is illustrated in FIGS. 15 and 16. The tool 140 is similar to a conventional tube cutter (e.g., similar to a No. 152 Tubing Cutter that is manufactured by the Ridge Tool Company) and includes a pair of rollers 146, which support and center the tube 12, one or more forming wheels 148 (two forming wheels 148 are employed in the example provided) and an incrementing mechanism 150 having a yoke 152 onto which the forming wheels 148 are rotatably mounted. Each forming wheel 148 includes an edge 156 that may have a shape that is complementary to the shape of the grooves 130 (FIG. 13). The incrementing mechanism 150 may include a screw jack 158 for adjustably moving the forming wheels 148 toward or away from the rollers 146. In operation, the tool 140 may be rotated about the tube 12 as the wheels 148 (via the incrementing mechanism 150) are moved toward the rollers 146, thereby causing the wheels 148 to push the portions 142 of the tube 12 into a corresponding one of the grooves 130 formed in the structural portion 30 of the fitting 14. Unlike a tube cutter, however, the tool 140 preferably includes an adjustable stop 160 for limiting the movement of the wheels 148 toward the rollers 146. Those skilled in the art will appreciate that the tool 140 may be equipped with one wheel 148 in the alternative.
  • [0055]
    Those skilled in the art will also appreciate from this disclosure that the tool 140 may be configured to locate on a surface of the abutting flange 44. Configuration of the tool in this manner permits the “forming means” to be positioned consistently relative to the grooves 130, provided that the structural portion 30 of the fitting 14 is constructed such that the distance between the surface of the abutting flange 44 and the grooves 130 remains relatively consistent from fitting 14 to fitting 14. Those skilled in the art will appreciate from this disclosure that either surface of the abutting flange 44 may be selected as the “datum surface”. In the example of FIGS. 17 and 18, the “near side” of the abutting flange 44 (i.e., the surface of the abutting flange 44 immediately adjacent the end 40 of the structural portion 30 being fastened to a tube 12) was chosen to locate the crimps 81 relative to the abutting flange 44, as the ability to locate the tool 140 a by pushing it against the abutting flange 44 was preferred.
  • [0056]
    The tool 140 a may include a tool body 82 a and a jaw 90 a, which may be generally similar to the configuration of a commercially available bolt cutter. The tool 140 a may further include a pair of discrete die members 92 c and 92 d, which are generally similar to the die members 92 a and 92 b, discussed above (i.e., rotatable about an axis that is generally perpendicular to the tube 12). Alternatively, the die members 92 c and 92 d may be fixed in a stationary (i.e., non-rotating) position. The die members 92 c and 92 d may be fixedly but removably coupled to the jaw 90 a and may include projections 96 c that extend into the die cavity 96. Depending on the desired configuration of the crimp 81, the projections 96 c may be formed about the perimeter of the die cavity 96 so that the crimp 81 will be substantially continuous about the perimeter of the tube 12, or may extend partially about the perimeter of the die cavity 96. Operation of the tool body 82 a (i.e., moving the handles of the tool body 82 a relative to one another) opens and closes the jaw 90 a in a conventional and well known manner to thereby move the die members 92 c and 92 d relative to one another. In the alternative, the tool may be configured to utilize the opposite side (i.e., “far side”) of the abutting flange 44 or both sides of the abutting flange 44 to locate the tool relative to the grooves 130 with appropriate modifications to the tool (e.g., to the die members).
  • [0057]
    One or both of the die members (e.g., 92 c and/or 92 d) may include indicia for stamping, embossing or otherwise marking the tube 12 with a mark in an area proximate the fitting 14 so as to identify that the crimp or crimps 81 had been formed with a suitable (e.g., approved, licensed) tool. In the example provided, the indicia is a raised mark identified by the reference letter T in FIG. 17, which as those of ordinary skill in the art will appreciate, stamps a mark into the tube 12 when the die members 92 c and 92 d are closed on the tube 12 to form the crimps 81. The indicia or mark may be of any desired form and may be a trademark of the tool, the fittings and/or the fluid conduit system. In the example provided, the raised mark T is a symmetrical trademark that is associated with the tool, the fittings and the fluid conduit system. While the raised mark T may be located anywhere along the length of the die members 92 c and/or 92 d, we chose a location proximate the abutting flange 44. Accordingly, the raised mark T may be employed not only to identify whether a suitable tool had been employed to form the crimps 81, but also to indicate whether the fitting 14 had been installed to the tube 12 properly prior to the formation of the crimps 81. For example, if the fitting 14 was not fully installed to the tube 12, the mark on the tube 12 that is formed by the raised mark may “fall off” the end of the tube so as to be incomplete or missing altogether. Similarly, the position of the mark on the tube 12 that is formed by the raised mark T relative to the abutting flange 44 may be employed to identify situations where the dies 92 c and 92 d were not abutted against the abutting flange 44 prior to forming the crimps 81.
  • [0058]
    With reference to FIG. 19, a family of fittings constructed in accordance with the teachings of the present disclosure is generally indicated by reference numeral 100. The family of fittings 100 may include a 450 elbow 102, a 900 elbow 104, a cap 106, a tee 108 and a union 110. Each member of the family of fittings 100 includes a structural portion 30 and a seal portion 32 which are generally similar to those that are illustrated in FIG. 13 except that the grooves 130 on the structural portion 30, while still being generally U-shaped, are somewhat wider and less rounded. Although the tee, elbow and union fittings of the family of fittings 100 are illustrated as employing two or more structural portions 30 and seal portions 32 that are identically sized, those skilled in the art will appreciate from this disclosure that they may be formed such that one or more of the structural portions 30 and/or seal portions 32 is differently sized from a remaining one of the structural portion 30 and/or seal portion 32. For example, the tee 108 in FIG. 20 is illustrated as having structural portions 30 a, 30 b and 30 c and seal portions 32 a, 32 b and 32 c wherein structural portion 30 c and seal portion 32 c are sized differently (i.e., smaller in the particular example show) than structural portions 30 a and 30 b and seal portions 32 a and 32 b, respectively.
  • [0059]
    Those skilled in the art will appreciate from this disclosure that the family of fittings 100 may include various “adapter fittings”, having the above-discussed structural portion 30 and seal portion 32 on one end and another plumbing configuration 252 on the opposite end 250, as is illustrated in the example of FIG. 21. While FIG. 21 illustrates that the other plumbing configuration 252 may be a solder connection, those skilled in the art will appreciate from this disclosure that various other known plumbing connections, such as a compression fitting, a flare fitting, male pipe threads, and female pipe threads, may also be employed.
  • [0060]
    Those skilled in the art will also appreciate from this disclosure that the 45° and 90° elbows may be formed somewhat differently from that which is illustrated in FIG. 19 to provide a gradual bend as the fitting changes direction, as conventional solder fittings are typically constructed. With reference to FIGS. 22 and 23, an exemplary 90° fitting 14 constructed in accordance with the teachings of the present disclosure is illustrated. The structural portions 30 of the fitting 30 may include a chamfer 50 that extends about the interior edge of the structural portion 30.
  • [0061]
    Another fluid conduit system constructed in accordance with the teachings of the present disclosure is illustrated in FIG. 24. In this example, the fluid conduit system includes a family of first fittings 300 and a family of second fittings 302. The family of first fittings 300 may include a tee fitting 310, a 90° elbow fitting 312, a 45° elbow fitting 314 and a cap fitting 316 that are generally similar to standard solder-type fittings except that their openings 320 have an inner diameter that is similar to the inner diameter of the tubes 12 (FIG. 1), whereas standard solder-type fittings have openings with an inner diameter that is similar to the outer diameter of the tubes 12. The second fittings 302 include various types of unions, including “straight” unions 330 and reducing unions 332, 334. One advantage of this fluid conduit system is that the plumbing contractor need not stock specific types of reducing fittings (i.e., tees and elbows), as any reductions may be made through use of a reducing union. Another advantage of this fluid conduit system is that the family of first fittings 300 may be produced and marketed with or without pre-installed fittings from the family of second fittings 302 as shown in FIG. 25.
  • [0062]
    While specific examples have been described in the specification and illustrated in the drawings, it will be understood by those of ordinary skill in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present disclosure as defined in the claims. Furthermore, the mixing and matching of features, elements and/or functions between various examples is expressly contemplated herein so that one of ordinary skill in the art would appreciate from this disclosure that features, elements and/or functions of one example may be incorporated into another example as appropriate, unless described otherwise, above. Moreover, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from the essential scope thereof. Therefore, it is intended that the present disclosure not be limited to the particular examples illustrated by the drawings and described in the specification as the best mode presently contemplated for carrying out the teachings of the present disclosure, but that the scope of the present disclosure will include any embodiments falling within the foregoing description and the appended claims.

Claims (19)

1. A method for forming a fluid conduit system, the method comprising:
providing a fitting having a structural portion and a seal portion, the seal portion being coupled to the structural portion;
inserting the structural portion into an annealed copper tube such that the seal portion sealingly engages an inside surface of the annealed copper tube and a portion of the structural portion outwardly extends from an end of the annealed copper tube; and
deforming only the annealed copper tube to couple the fitting to the annealed copper tube.
2. The method of claim 1, wherein the structural portion has one or more crimp grooves, each of the crimp grooves extending about a circumference of the structural portion and wherein a portion of the annealed copper tube being received into at least one crimp groove when the annealed copper tube is deformed.
3. The method of claim 2, wherein the fitting further includes a flange and wherein the annealed copper tube is deformed at a location that is axially spaced apart from the flange by a predetermined dimension.
4. The method of claim 3, wherein before the deforming step the method further comprises locating a crimping tool against a surface of the flange.
5. The method of claim 2, wherein prior to deforming the annealed copper tube, a plurality of dies is positioned about the annealed copper tube and the dies are forced against the annealed copper tube.
6. The method of claim 2, wherein portions of the annealed copper tube are received into each crimp groove when the annealed copper tube is deformed.
7. The method of claim 6, wherein the portions of the annealed copper tube are deformed substantially simultaneously.
8. A tool for securing a fitting to a tube, the tool including a jaw and a pair of die members, the jaw being disposed about a first axis and including a pair of opposed die members, each of the die members being pivotably coupled to an associated one of the opposed members and pivotable about a second axis that is generally perpendicular to the first axis.
9. The tool of claim 8, wherein the jaw is rotatably disposed about the first axis.
10. A method for forming a fluid conduit system, the method comprising:
providing a fitting having a structural portion and a seal portion, the seal portion being removably coupled to the structural portion;
selecting one of a plastic tube and an annealed copper tube;
if the plastic tube is selected:
installing a crimp collar about the plastic tubing;
inserting only the structural portion of the fitting into the plastic tubing such that at least a first portion of the structural portion outwardly extends from an end of the plastic tubing; and
deforming the crimp collar to fix the plastic tubing to the structural portion of the fitting;
otherwise, inserting the fitting into the annealed copper tube such that the seal portion is proximate an inside surface of the annealed copper tube and at least a second portion of the structural portion outwardly extends from an end of the annealed copper tube; and
deforming only the annealed copper tube to couple the fitting to the annealed copper tube.
11. A method for forming a fluid conduit system, the method comprising:
providing a fitting having a structural portion and a seal portion, the structural portion defining a first tube stop and a second tube stop that are spaced apart from one another, the seal portion being mounted on the structural portion;
inserting the structural portion into a tube such that the seal portion sealingly engages an inside surface of the tube and a portion of the structural portion outwardly extends from an end of the tube; and
deforming the tube to couple the fitting to the tube;
wherein relative axial movement between the tube and the structural portion of the fitting is inhibited by contact between the tube and the first and second tube stops.
12. The method of claim 11, wherein the first tube stop includes a circumferentially extending flange.
13. The method of claim 11, wherein the second tube stop includes a circumferentially chamfered surface on the structural portion, the circumferentially chamfered surface being generally transverse to a longitudinal axis of the structural portion.
14. The method of claim 11, wherein at least one of the first and second tube stops includes a circumferentially-extending groove formed at least partially about the structural portion.
15. The method of claim 14, wherein the circumferentially-extending grooves are disposed on opposite sides of the seal portion.
16. The method of claim 11, wherein the seal portion comprises a pair of O-rings.
17. The method of claim 11, wherein the seal portion extends between the first and second tube stops.
18. The method of claim 11, wherein the first and second tube stops are spaced axially apart from the seal portion.
19. A method for forming a fluid conduit system, the method comprising:
providing a fitting having a structural portion and a seal portion, the structural portion defining a first tube stop and a second tube stop that are spaced apart from one another, the seal portion being mounted on the structural portion;
inserting the structural portion into a tube such that the seal portion sealingly engages an inside surface of the tube and a portion of the structural portion outwardly extends from an end of the tube; and
deforming the tube to couple the fitting to the tube;
wherein relative axial movement between the tube and the structural portion of the fitting is inhibited by contact between the tube and the first and second tube stops,
wherein the first tube stop is selected from a group consisting of circumferentially extending flanges, circumferentially chamfered surfaces, circumferentially extending grooves and combinations thereof;
wherein the first and second tube stops are spaced axially apart from the seal portion; and
wherein the seal portion comprises a pair of O-rings.
US11931347 2003-05-15 2007-10-31 Fluid conduit system and fittings therefor Abandoned US20080048448A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US47059903 true 2003-05-15 2003-05-15
US10739983 US7516990B2 (en) 2003-05-15 2003-12-18 Fluid conduit system and fittings therefor
US11931347 US20080048448A1 (en) 2003-05-15 2007-10-31 Fluid conduit system and fittings therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11931347 US20080048448A1 (en) 2003-05-15 2007-10-31 Fluid conduit system and fittings therefor

Publications (1)

Publication Number Publication Date
US20080048448A1 true true US20080048448A1 (en) 2008-02-28

Family

ID=33424010

Family Applications (2)

Application Number Title Priority Date Filing Date
US10739983 Active 2026-01-19 US7516990B2 (en) 2003-05-15 2003-12-18 Fluid conduit system and fittings therefor
US11931347 Abandoned US20080048448A1 (en) 2003-05-15 2007-10-31 Fluid conduit system and fittings therefor

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US10739983 Active 2026-01-19 US7516990B2 (en) 2003-05-15 2003-12-18 Fluid conduit system and fittings therefor

Country Status (2)

Country Link
US (2) US7516990B2 (en)
CA (1) CA2467126A1 (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100001516A1 (en) * 2008-07-03 2010-01-07 Value Plastics, Inc. Latch assembly for joining two conduits
US20100253066A1 (en) * 2009-04-02 2010-10-07 Victaulic Company Crimp-Type Coupling, Crimping Tool and Method of Crimping
US20110012340A1 (en) * 2006-01-20 2011-01-20 Value Plastics, Inc. Fluid Conduit Couplers with Depressible Latch Mechanism
US20110197662A1 (en) * 2009-02-17 2011-08-18 Mcalister Technologies, Llc Methods, devices, and systems for detecting properties of target samples
WO2011100718A2 (en) * 2010-02-13 2011-08-18 Mcalister Roy E Methods, devices, and systems for detecting properties of target samples
US20110199220A1 (en) * 2010-02-13 2011-08-18 Mcalister Technologies, Llc Methods and apparatuses for detection of properties of fluid conveyance systems
US20110204621A1 (en) * 2009-12-09 2011-08-25 Value Plastics, Inc. Fluid connector latches with profile lead-ins
USD645547S1 (en) 2007-11-19 2011-09-20 Value Plastics, Inc. Male quick connect fitting
USD649240S1 (en) 2009-12-09 2011-11-22 Value Plastics, Inc. Male dual lumen bayonet connector
USD650478S1 (en) 2009-12-23 2011-12-13 Value Plastics, Inc. Female dual lumen connector
USD652511S1 (en) 2011-02-11 2012-01-17 Value Plastics, Inc. Female body of connector for fluid tubing
USD652510S1 (en) 2011-02-11 2012-01-17 Value Plastics, Inc. Connector for fluid tubing
US8113546B2 (en) 2005-06-10 2012-02-14 Value Plastics, Inc. Latching female fluid tubing coupler
USD655393S1 (en) 2009-06-23 2012-03-06 Value Plastics, Inc. Multi-port valve
USD663022S1 (en) 2011-02-11 2012-07-03 Nordson Corporation Male body of connector for fluid tubing
US20130119655A1 (en) * 2008-07-31 2013-05-16 Tommy L. Jamison Coupling and joint for fixedly and sealingly securing components to one another
USD698440S1 (en) 2011-07-29 2014-01-28 Nordson Corporation Connector for fluid tubing
USD699840S1 (en) 2011-07-29 2014-02-18 Nordson Corporation Male body of connector for fluid tubing
USD699841S1 (en) 2011-07-29 2014-02-18 Nordson Corporation Female body of connector for fluid tubing
USD709612S1 (en) 2011-12-23 2014-07-22 Nordson Corporation Female dual lumen connector
US9145992B2 (en) 2011-12-28 2015-09-29 Cerro Flow Products Llc Refrigeration line set fitting and method of using the same to join refrigeration lines to each other
US9388929B2 (en) 2009-12-09 2016-07-12 Nordson Corporation Male bayonet connector
US9464741B2 (en) 2009-12-09 2016-10-11 Nordson Corporation Button latch with integrally molded cantilever springs
USD785790S1 (en) 2009-12-09 2017-05-02 General Electric Company Male dual lumen bayonet connector

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070152442A1 (en) * 2002-06-13 2007-07-05 Dayco Products, Llc Brazeless connector for fluid transfer assemblies
DE102004005558B4 (en) * 2004-01-31 2006-04-20 Michael Birk Press pliers head and pressing tool
EP1977184A1 (en) * 2006-01-19 2008-10-08 Dayco Fluid Technologies S.p.A. Heat exchanger provided with a connection element
US7875103B2 (en) * 2006-04-26 2011-01-25 Mueller Environmental Designs, Inc. Sub-micron viscous impingement particle collection and hydraulic removal system
US7493791B2 (en) * 2006-07-27 2009-02-24 Fci Americas Technology, Inc. Electrical connector crimp die with crimp overlap indicia forming
USD709994S1 (en) * 2007-10-05 2014-07-29 Blazing Products, Inc. Insert portion of a pipe fitting
US20080122222A1 (en) * 2006-11-29 2008-05-29 H & H Tube & Manufacturing Co. Crimp-on transition fitting
WO2008141286A1 (en) * 2007-05-11 2008-11-20 Faip North America, Inc. High pressure hose with two-part composite connector fittings
WO2009047095A1 (en) * 2007-10-05 2009-04-16 Acc Austria Gmbh Coolant compressor
US7987690B2 (en) 2008-01-04 2011-08-02 Cerro Flow Products Llc Fluid conduits with integral end fittings and associated methods of manufacture and use
US7942456B2 (en) 2008-01-04 2011-05-17 Cerro Flow Products, Inc. Fluid conduits with integral end fittings and associated methods of manufacture and use
EP2752608B1 (en) 2013-01-02 2017-10-25 Mueller Industries, Inc. Coupling and joint for fixedly and sealingly securing components to one another
CN102459924B (en) 2009-04-10 2014-11-05 3M创新有限公司 Blind fasteners
US9422964B2 (en) 2009-04-10 2016-08-23 3M Innovative Properties Company Blind fasteners
KR20120089749A (en) 2009-11-16 2012-08-13 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Pipe section joining
DE102010037027A1 (en) * 2010-08-18 2012-02-23 Erbe Elektromedizin Gmbh A device for sealing attachment of a pressure hose to a handle element or a plug of a surgical instrument
DE102010045871A1 (en) * 2010-09-17 2012-03-22 Emitec Gesellschaft Für Emissionstechnologie Mbh Exhaust gas treatment unit for an EGR passage
EP2691680B1 (en) * 2011-03-28 2017-04-26 Flexin Group S.r.l. Connector for flexible hose

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2008534A (en) * 1930-02-12 1935-07-16 Wiltse Sumner Tubing
US3689112A (en) * 1970-10-27 1972-09-05 Bowen Tools Inc Tubing connection having means for distributing axially applied pulling forces
US4393566A (en) * 1980-05-10 1983-07-19 Kabel-Und Metallwerke Gutehoffnungshutte Ag Processing of copper tubing
US4548430A (en) * 1983-04-18 1985-10-22 Aeroquip Corporation Crimped hose fitting
US5651173A (en) * 1995-03-27 1997-07-29 Whitley Products, Inc. Method for doubly upsetting tubing flanges
US5829795A (en) * 1996-02-29 1998-11-03 Hewing Gmbh Press-fitting device for connection of a tube
US5832588A (en) * 1994-04-26 1998-11-10 Universal Enterprises Tube fitting and assembly method
WO2000039495A1 (en) * 1998-12-24 2000-07-06 Tricorn Group Plc Pipe coupling
US7484772B2 (en) * 2001-12-27 2009-02-03 Volvo Lastvagnar Ab End connection for pipes and a method for its manufacture

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7406802U (en) Dynamit Nobel Ag
US1911755A (en) 1933-05-30 Packing ring
US2192914A (en) 1938-11-30 1940-03-12 James N Ice Method of connecting conduit sections
US2346051A (en) 1942-06-16 1944-04-04 Seamark Lewis Mervyn Cecil Pipe and other coupling
US3068563A (en) 1958-11-05 1962-12-18 Westinghouse Electric Corp Metal joining method
US3222094A (en) * 1961-07-26 1965-12-07 Myron L Robinson Plastic pipe to metal pipe coupling
US3343252A (en) 1964-03-03 1967-09-26 Reynolds Metals Co Conduit system and method for making the same or the like
US3434900A (en) 1966-01-07 1969-03-25 Ilan Bender Method for making bonded pipe joints
US3363680A (en) * 1966-07-21 1968-01-16 Du Pont Plastic tube heat exchanger with novel header construction
US3579794A (en) 1969-10-03 1971-05-25 Jonathan S Powell Means for securing couplings to pipe
US3759794A (en) * 1971-11-01 1973-09-18 S Sax Method for determination of amylase activity
GB2127509B (en) * 1982-09-23 1986-05-14 David John Picton Pipe coupling
US4715624A (en) * 1985-06-24 1987-12-29 Frye Henry A Plastic to metal transition fitting
US4850621A (en) * 1988-03-22 1989-07-25 Usui Kokusai Sangyo Kabushiki Kaisha Structure having interconnected metal tubes
US4858967A (en) * 1988-04-12 1989-08-22 Flow Systems, Inc. High pressure hose fitting and method for sealing high pressure hoses to fittings
JPH0351501B2 (en) * 1988-07-13 1991-08-07 Mie Horo Co Ltd
US5044671A (en) * 1990-06-21 1991-09-03 S & H Fabricating And Engineering Incorporated Swaged-type flexible hose coupling
DE9113050U1 (en) 1990-11-08 1991-12-05 Geberit Ag, Jona, St.Gallen, Ch
DE9016310U1 (en) * 1990-11-30 1991-02-21 Hewing Gmbh, 4434 Ochtrup, De
DE9110998U1 (en) * 1991-09-05 1991-10-31 Hewing Gmbh
US5890287A (en) * 1996-01-10 1999-04-06 Usui Kokusai Sangyo Kaisha Limited Connection structure and process for connecting eye joints and slender metal pipes
DE19609257C2 (en) 1996-02-28 1998-08-20 Mannesmann Ag pipe connection
ES2172017T3 (en) 1996-10-25 2002-09-16 Mapress Gmbh & Co Kg Union for pipe.
DE19707827C2 (en) * 1997-02-25 1999-04-01 Geberit Technik Ag press connection
US5944359A (en) * 1997-05-12 1999-08-31 Pureflex Inc. Flangeless piping system for lined pipe
DE19722935C1 (en) 1997-05-27 1998-07-09 Mannesmann Ag Pressed pipe fitting for permanent linkage between two sections of smooth pipe
DE29811506U1 (en) * 1997-07-30 1998-08-20 Chemidro S A S Di Del Pin Mart Connecting means for connecting tubular members by compressing
DK1081423T3 (en) 1999-08-17 2001-06-11 Franz Viegener Ii Gmbh & Co Kg A method and mold piece for producing a press connection between a fitting and a fitting socket inserted pipe end
DE20018312U1 (en) 2000-10-26 2001-05-10 Franz Viegener Ii Gmbh & Co Kg press tool
US7237809B2 (en) * 2004-05-07 2007-07-03 Halliburton Energy Services, Inc. Coiled tubing connector

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2008534A (en) * 1930-02-12 1935-07-16 Wiltse Sumner Tubing
US3689112A (en) * 1970-10-27 1972-09-05 Bowen Tools Inc Tubing connection having means for distributing axially applied pulling forces
US4393566A (en) * 1980-05-10 1983-07-19 Kabel-Und Metallwerke Gutehoffnungshutte Ag Processing of copper tubing
US4548430A (en) * 1983-04-18 1985-10-22 Aeroquip Corporation Crimped hose fitting
US5832588A (en) * 1994-04-26 1998-11-10 Universal Enterprises Tube fitting and assembly method
US5651173A (en) * 1995-03-27 1997-07-29 Whitley Products, Inc. Method for doubly upsetting tubing flanges
US5829795A (en) * 1996-02-29 1998-11-03 Hewing Gmbh Press-fitting device for connection of a tube
WO2000039495A1 (en) * 1998-12-24 2000-07-06 Tricorn Group Plc Pipe coupling
US7484772B2 (en) * 2001-12-27 2009-02-03 Volvo Lastvagnar Ab End connection for pipes and a method for its manufacture

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8113546B2 (en) 2005-06-10 2012-02-14 Value Plastics, Inc. Latching female fluid tubing coupler
US20110012340A1 (en) * 2006-01-20 2011-01-20 Value Plastics, Inc. Fluid Conduit Couplers with Depressible Latch Mechanism
US8397756B2 (en) 2006-01-20 2013-03-19 Nordson Corporation Fluid conduit couplers with depressible latch mechanism
USD645547S1 (en) 2007-11-19 2011-09-20 Value Plastics, Inc. Male quick connect fitting
USD654573S1 (en) 2007-11-19 2012-02-21 Value Plastics, Inc. Female quick connect fitting
US8235426B2 (en) 2008-07-03 2012-08-07 Nordson Corporation Latch assembly for joining two conduits
US8448994B2 (en) 2008-07-03 2013-05-28 Nordson Corporation Latch assembly for joining two conduits
US20100001516A1 (en) * 2008-07-03 2010-01-07 Value Plastics, Inc. Latch assembly for joining two conduits
US8596688B2 (en) 2008-07-03 2013-12-03 Nordson Corporation Latch assembly for joining two conduits
US8925978B2 (en) * 2008-07-31 2015-01-06 Mueller Industries, Inc. Coupling and joint for fixedly and sealingly securing components to one another
US20130119655A1 (en) * 2008-07-31 2013-05-16 Tommy L. Jamison Coupling and joint for fixedly and sealingly securing components to one another
US20110197662A1 (en) * 2009-02-17 2011-08-18 Mcalister Technologies, Llc Methods, devices, and systems for detecting properties of target samples
US8312759B2 (en) 2009-02-17 2012-11-20 Mcalister Technologies, Llc Methods, devices, and systems for detecting properties of target samples
US20100253066A1 (en) * 2009-04-02 2010-10-07 Victaulic Company Crimp-Type Coupling, Crimping Tool and Method of Crimping
USD655393S1 (en) 2009-06-23 2012-03-06 Value Plastics, Inc. Multi-port valve
US9464741B2 (en) 2009-12-09 2016-10-11 Nordson Corporation Button latch with integrally molded cantilever springs
USD785790S1 (en) 2009-12-09 2017-05-02 General Electric Company Male dual lumen bayonet connector
US9388929B2 (en) 2009-12-09 2016-07-12 Nordson Corporation Male bayonet connector
USD649240S1 (en) 2009-12-09 2011-11-22 Value Plastics, Inc. Male dual lumen bayonet connector
US20110204621A1 (en) * 2009-12-09 2011-08-25 Value Plastics, Inc. Fluid connector latches with profile lead-ins
US9046205B2 (en) 2009-12-09 2015-06-02 Nordson Corporation Fluid connector latches with profile lead-ins
US9732891B2 (en) 2009-12-09 2017-08-15 General Electric Company Male bayonet connector
USD650478S1 (en) 2009-12-23 2011-12-13 Value Plastics, Inc. Female dual lumen connector
US8441361B2 (en) 2010-02-13 2013-05-14 Mcallister Technologies, Llc Methods and apparatuses for detection of properties of fluid conveyance systems
WO2011100718A2 (en) * 2010-02-13 2011-08-18 Mcalister Roy E Methods, devices, and systems for detecting properties of target samples
US20110199220A1 (en) * 2010-02-13 2011-08-18 Mcalister Technologies, Llc Methods and apparatuses for detection of properties of fluid conveyance systems
WO2011100718A3 (en) * 2010-02-13 2012-01-12 Mcalister Roy E Methods, devices, and systems for detecting properties of target samples
CN102906555A (en) * 2010-02-13 2013-01-30 麦卡利斯特技术有限责任公司 Methods, devices, and systems for detecting properties of target samples
USD652510S1 (en) 2011-02-11 2012-01-17 Value Plastics, Inc. Connector for fluid tubing
USD663022S1 (en) 2011-02-11 2012-07-03 Nordson Corporation Male body of connector for fluid tubing
USD652511S1 (en) 2011-02-11 2012-01-17 Value Plastics, Inc. Female body of connector for fluid tubing
USD699841S1 (en) 2011-07-29 2014-02-18 Nordson Corporation Female body of connector for fluid tubing
USD698440S1 (en) 2011-07-29 2014-01-28 Nordson Corporation Connector for fluid tubing
USD712537S1 (en) 2011-07-29 2014-09-02 Nordson Corporation Connector for fluid tubing
USD699840S1 (en) 2011-07-29 2014-02-18 Nordson Corporation Male body of connector for fluid tubing
USD709612S1 (en) 2011-12-23 2014-07-22 Nordson Corporation Female dual lumen connector
US9145992B2 (en) 2011-12-28 2015-09-29 Cerro Flow Products Llc Refrigeration line set fitting and method of using the same to join refrigeration lines to each other
US9638361B2 (en) 2011-12-28 2017-05-02 Rls Llc Refrigeration line set fitting and method of using the same to join refrigeration lines to each other

Also Published As

Publication number Publication date Type
US7516990B2 (en) 2009-04-14 grant
US20040227346A1 (en) 2004-11-18 application
CA2467126A1 (en) 2004-11-15 application

Similar Documents

Publication Publication Date Title
US3596939A (en) Tube joint having sealing and crimping means
US3674292A (en) Tubular connection devices
US4804212A (en) Crimped hose fitting
US5695224A (en) Pipe joint assembly
US6155091A (en) Mandrel assembly for tube-bending apparatus
US4303263A (en) Instant fitting for reinforced multilayer flexible tubings for fluids
US5090743A (en) Compressible fitting and associated method
US6343623B2 (en) Sealing ring for connecting the spigot of a corrugated pipe with a pipe socket having a smooth inside wall
US3858914A (en) Transition pipe connection
US5498043A (en) Hose fitting having ferrule anti-rotation ratchet teeth
US5328215A (en) Pipe joint assembly
US3920270A (en) Pipe coupling
US6913292B2 (en) Mechanical pipe coupling derived from a standard fitting
US4586734A (en) Pipe joint assembly
US7055868B2 (en) Corrugated tube fitting
US6234544B1 (en) Quick connector with confirmation feature
US5868435A (en) Apparatus for and method of attaching conduits to a fitting
US20030067170A1 (en) Clamping mechanical pipe coupling derived from a standard fitting
US7387318B2 (en) Piping connector
US5484174A (en) Pipe coupling and method of joining materials
US4281859A (en) Pipe joints
US3833984A (en) Process and arrangement for double flanging of pipes
US6095571A (en) Tubing connector
US5490694A (en) Threadless pipe coupler
US6523862B1 (en) Tubing connector with integrated crimp ring and reaming tool for use therewith