Pipe fitting

Abstract

A push-on fitting is provided. The push-on fitting includes a connector body, a sealing member, a grip ring, a barrel, a retainer sleeve, a plurality of latches, and an interference portion. The sealing member is configured to form a sealing engagement with the fluid conduit. The grip ring includes a plurality of teeth configured for coupling to a fluid conduit. A retainer sleeve is received on at least a portion of the barrel and is received on at least a portion of the connector body. A plurality of latches are located on the retainer sleeve and configured to secure the retainer sleeve to the connector body to facilitate retaining the sealing member, the grip ring, and the barrel. The interference portion is configured to engage with the retainer sleeve to substantially prevent rotation of the retainer sleeve relative to the connector body.

Description

[0001] Priority declaration

[0002] This patent application claims the benefit of U.S. Provisional Patent Application No.

[0003] 63 / 331,095 and U.S. Provisional Patent Application No. filed on April 14, 2022.

[0004] 63 / 331,134, the disclosures of which are incorporated herein by reference in their entirety. Technical Field

[0005] The present disclosure relates generally to pipe fittings. More particularly, the present disclosure relates to push-to-connect fittings having improved resistance to breakage. Background Art

[0006] Conduits are used to transport a variety of liquids and / or gases. Couplers, connectors, and fittings are used to connect conduits in various ways so that the conduits can be arranged in different configurations to move media through the conduits. Conduits can be rigid or hard, such as metal or plastic pipes used in household plumbing applications, or conduits can be flexible. Connectors are used for end-to-end connection of conduits, or connectors can route conduits in different directions relative to the axis of the conduit. For example, connectors can be used to change the direction of a conduit, such as at a 45° or 90° angle relative to the flow channel of the conduit connected by the connector. Connectors can also be used to branch or separate conduits in different directions. For example, a single conduit section can be connected by a T-fitting or a Y-fitting or a multi-conduit joint or a diameter change. Summary of the invention

[0007] The present disclosure relates to connectors for catheters having improved ease of assembly and coupling, among other benefits. Certain catheter connectors may be difficult to assemble or require special tools in order to couple the connector to the catheter. For example, a threaded connector may require a wrench to hold one component while rotating a mating component. Therefore, there is a need for a connector that does not require tools to couple with the catheter so that a substantially watertight seal can be achieved manually between the connector and the catheter without the need for tools.

[0008] In addition, some existing connectors require deformation to join two components or to connect the connector to a conduit. For example, the end of a garden hose has an exterior of a hose spigot that is crimped around the exterior of a conduit to connect a male hose spigot or a female hose spigot to the garden hose. In some connectors, a user must manually deform the end of a sleeve so that the two components of the connector cannot move axially apart, thereby securing the components of the connector together. Therefore, a simpler connector that does not require manual deformation to join components is needed.

[0009] Some connectors are irreversibly coupled to the conduit and cannot be removed except by destroying the connector. Welded or brazed pipe joints are historical examples of permanent connectors. However, it may be advantageous to decouple the conduit and reuse the connector. Therefore, there is a need for a connector that can be decoupled without destroying the connector. Connectors according to the embodiments discussed below address these issues.

[0010] It is desirable that fluid connectors not leak, as this could result in, for example, a loss of system pressure or pooling of liquid.Connectors according to embodiments discussed below are configured to provide a fluid seal at least at pressures several times greater than the expected operating pressure of the tubular connector.

[0011] The various exemplary descriptions below contain examples of representative ranges, sizes and / or tolerances for certain components. These are provided by way of illustration and not limitation. Unless otherwise stated, all numbers used in the specification and claims to represent quantities of properties, parameters, conditions, etc. should be understood to be modified by the term "about" or "approximately" in all cases, and therefore, unless otherwise stated, the numerical parameters described in the following specification and the appended claims are approximate values. Any numerical parameter should be interpreted at least in terms of the significant figures of the reported numerical value and by applying ordinary rounding techniques. When used before a numerical designation (e.g., the size of a measured property), the term "about" or "approximately" means an approximate value that can vary (+) or (-) 10%, 5%, or 1%.

[0012] At least one embodiment is directed to a push-on fitting. The push-on fitting includes a connector body, a sealing member, a gripping ring, a barrel, a retainer sleeve, a plurality of latches, and an interference portion. The connector body has a fluid passage extending at least partially therethrough. The sealing member is configured to form a sealing engagement with a fluid conduit. The gripping ring includes a plurality of teeth configured to be coupled to the fluid conduit. The barrel is positioned adjacent to at least a portion of the gripping ring and has a hollow portion extending through the barrel. The gripping ring is interposed between the barrel and the sealing member when the push-on fitting is assembled. The retainer sleeve is received on at least a portion of the barrel and is received on at least a portion of the connector body. A plurality of latches are located on the retainer sleeve and are configured to secure the retainer sleeve to the connector body so as to retain the sealing member, the gripping ring, and the barrel. When the push-on fitting is assembled, the interference portion is interposed between the connector body and the retainer sleeve. The interference portion is configured to engage with the retainer sleeve to substantially prevent rotation of the retainer sleeve relative to the connector body.

[0013] In some embodiments, the push-to-fit fitting further includes a removal body movable within the hollow portion of the barrel and configured to engage the plurality of teeth of the gripping ring to facilitate decoupling of the plurality of teeth from the fluid conduit.

[0014] In some embodiments, the push-on fitting further comprises a protection ring positioned within the connector body and between the sealing member and the gripping ring. The protection ring comprises an inclined surface such that the inclined surface tapers to a smaller diameter as the inclined surface extends away from the gripping ring.

[0015] In some embodiments, the retainer sleeve includes an inner sleeve surface having a first diameter, and the interference portion includes one or more protrusions having a second diameter greater than the first diameter. The first diameter and the second diameter are sized such that an interference fit exists between the interference portion and the retainer sleeve.

[0016] In some embodiments, the retainer sleeve further comprises a compliant material such that when the end of the retainer sleeve engages the interference portion, the end expands to a third diameter. The third diameter is greater than the second diameter.

[0017] In some embodiments, the interference portion is formed as an annular member having a diameter greater than a diameter of the connector body.The interference portion is also integrally formed with the connector body, and the interference portion radially extends from the connector body in a direction away from the fluid passage.

[0018] In some embodiments, the push-on fitting further comprises a retaining surface and a plurality of latches. The retaining surface is located on the connector body, and the plurality of latches are configured to engage with the retaining surface to facilitate coupling the retainer sleeve to the connector body.

[0019] In some embodiments, each of the plurality of latches is configured to rotate about a side wall to which the latch is connected such that each of the plurality of latches engages the retaining surface when the retainer sleeve engages the interference portion.

[0020] In some embodiments, the plurality of latches are configured to move in a direction away from or toward the retaining surface so as to engage the retaining surface.

[0021] In some embodiments, the plurality of latches include one or more protrusions extending laterally from a side wall to which the latches are connected.

[0022] In some embodiments, engagement of the plurality of latches with the retaining surface inhibits rotation of the retainer sleeve relative to the connector body.

[0023] In some embodiments, each of the plurality of latches includes a release position and a lock position.When the retainer sleeve is engaged by the interference portion, each of the plurality of latches is in the lock position.

[0024] In some embodiments, the interference portion further includes a shoulder surface having a frustoconical profile, the shoulder surface configured to engage an end of the retainer sleeve when the retainer sleeve is received on the interference portion.

[0025] In some embodiments, the shoulder surface facilitates alignment of the retainer sleeve.

[0026] In some embodiments, the retainer sleeve includes a first retainer sleeve, and the connector body further includes a first connector end coupled to the first retainer sleeve and a second connector end coupled to the second retainer sleeve. The first connector end and the second connector end are in fluid communication with each other via a fluid passage.

[0027] Another embodiment relates to a plumbing fitting. The plumbing fitting includes a first connector assembly, a second connector assembly, and a fluid passage extending between the first connector assembly and the second connector assembly. The first connector assembly includes a first connector body, a first retainer sleeve, and a first interference portion. The first connector body is centered along a first axis and is configured to receive a first fluid conduit end. The first retainer sleeve is coupled to the first connector body and is configured to receive the first fluid conduit end. The first interference portion is between the first connector body and the first retainer sleeve. The first interference portion is configured to prevent the first retainer sleeve from rotating about the first axis relative to the first connector body. The second connector assembly includes a second connector body, a second retainer sleeve, and a second interference portion. The second connector body is centered along a second axis and is configured to receive a second fluid conduit end. The second connector body is in fluid communication with the first connector body. The second retainer sleeve is coupled to the second connector body and is configured to receive the second fluid conduit end. And the second interference portion is between the second connector body and the second retainer sleeve. The second interference portion is configured to prevent the second retainer sleeve from rotating about the second axis relative to the second connector body.

[0028] In some embodiments, the first retainer sleeve includes a first inner sleeve surface having a first diameter, and the first interference portion has a second diameter greater than the first diameter. The first inner sleeve surface and the first interference portion are sized such that an interference fit exists between the first interference portion and the first retainer sleeve.

[0029] In some embodiments, the first interference portion is integrally formed with the first connector body.The first interference portion radially extends from the first connector body in a direction away from the first axis.

[0030] In some embodiments, the first retainer sleeve further comprises a compliant material. The compliant material is configured such that when the end of the first retainer sleeve engaged by the first interference portion engages the first interference portion, the end expands to a third diameter. The third diameter is greater than the second diameter.

[0031] In some embodiments, the pipe fitting further comprises a retaining surface and a plurality of latches. The retaining surface is located on the first connector body. The plurality of latches are located on the first retainer sleeve and are configured to engage with the retaining surface to facilitate coupling the first retainer sleeve to the first connector body.

[0032] In some embodiments, each latch of the plurality of latches is configured to rotate about a side wall to which the latch is connected and engage the retaining surface when the first interference portion engages the retainer sleeve.

[0033] In some embodiments, each of the plurality of latches includes a released position and a locked position.When the first retainer sleeve is engaged by the first interference portion, each of the plurality of latches is in the locked position.

[0034] Another embodiment relates to a connector assembly. The connector assembly includes a connector body and a retainer sleeve. The connector body has a fluid passage extending at least partially therethrough. The connector body also includes a first end and a second end opposite the first end. A first connector flange extends radially away from the connector body and is positioned between the first end and the second end. The first connector flange has a first diameter. A second connector flange extends radially from the connector body and is positioned between the first connector flange and the second end. The second connector flange has a second diameter greater than the first diameter. The retainer sleeve is configured to be coupled to the connector body and configured to extend around the fluid passage. The retainer sleeve includes a first sleeve end and a second sleeve end opposite the first sleeve end. The retainer sleeve also includes an inner sleeve surface having a third diameter, wherein the third diameter is less than the second diameter. The retainer sleeve also includes a plurality of latches, which are positioned circumferentially around the inner sleeve surface and extend radially inward relative to the inner sleeve surface. The retainer sleeve is configured such that when the retainer sleeve is coupled to the connector body and the second connector flange engages with a portion of the inner sleeve surface near the first sleeve end, the portion of the inner sleeve surface near the first sleeve end expands to a fourth diameter greater than the second diameter in response to deformation of the retainer sleeve, and when the first sleeve end expands to the fourth diameter, the plurality of latches rotate inwardly toward the connector body.

[0035] In some embodiments, the connector body further includes a retaining surface positioned on the first connector flange and extending circumferentially around the fluid passage. A plurality of latches are configured to engage the retaining surface when the retainer sleeve is coupled to the connector body.

[0036] In some embodiments, the connector body further comprises a shoulder surface positioned between the first connector flange and the second connector flange. The shoulder surface is gradually expanded outwardly toward the second connector flange to facilitate centering of the retainer sleeve around the connector body.

[0037] In some embodiments, the third diameter is smaller than the second diameter by more than about 0.01 millimeters and less than about 0.15 millimeters, inclusive, such that an interference fit is formed between the retainer sleeve and the connector body.

[0038] In some embodiments, the third diameter is smaller than the second diameter by more than about 0.2 millimeters and less than about 0.5 millimeters, inclusive, such that an interference fit is formed between the retainer sleeve and the connector body.

[0039] In some embodiments, the retainer sleeve is a first retainer sleeve, and the connector body further includes a first connector end and a second connector end. The first connector end is coupled to the first retainer sleeve. The second connector end is coupled to the second retainer sleeve, and the second retainer sleeve is substantially similar to the first retainer sleeve. The first connector end and the second connector end are in fluid communication with each other via a fluid channel.

[0040] Another embodiment relates to a method for manufacturing a connector assembly. The method includes the steps of obtaining a connector body positioned along an axis and obtaining a retainer sleeve, which is configured to be received on at least a portion of the connector body. The retainer sleeve extends around the axis. The retainer sleeve includes a first sleeve end, a second sleeve end opposite to the first sleeve end, and an inner sleeve surface having an inner sleeve diameter. The method also includes positioning an interference portion circumferentially around the connector body, the interference portion being an annular body having a retaining diameter greater than the inner sleeve diameter. Then positioning multiple internal components. The method also includes pressing the retainer sleeve around the connector body and the interference portion so that the interference portion is between the retainer sleeve and the connector body, and the interference portion is engaged with a portion of the inner sleeve surface near the second sleeve end, and in response to the deformation of the retainer sleeve, the diameter of the portion of the inner sleeve surface near the first sleeve end is expanded to a connection diameter greater than the inner sleeve diameter.

[0041] In some embodiments, pressing the retainer sleeve about the connector body and the interference portion forms an interference fit between the retainer sleeve and the interference portion, thereby preventing rotation of the retainer sleeve relative to the connector body about the axis.

[0042] In some embodiments, the connector body further comprises a retaining surface, and the retainer sleeve further comprises a plurality of latches configured to engage with the retaining surface when the retainer sleeve is coupled to the connector body. The method further comprises pressing the retainer sleeve around the connector body and the interference portion so that the plurality of latches engage with the retaining surface.

[0043] In some embodiments, the connector body further comprises a shoulder surface defining a frustoconical profile that expands outwardly toward the interference portion. The method further comprises pressing a retainer sleeve around the connector body and the interference portion so that the inner sleeve surface engages the shoulder surface. The engagement of the retainer sleeve with the shoulder surface causes the second sleeve end to expand to the coupling diameter and facilitates centering of the retainer sleeve around the connector body and the interference portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Other embodiments of the present disclosure will now be described more fully hereinafter, by way of example only, with reference to the accompanying drawings, in which like reference numerals refer to like parts throughout, and in which:

[0045] Figure 1 According to an exemplary embodiment, Fig.11 An exploded side cross-sectional view of the connector assembly taken at section 1-1;

[0046] Figure 2 According to an exemplary embodiment Figure 1 A side cross-sectional view of a protector body of a connector assembly;

[0047] Figure 3 According to an exemplary embodiment Figure 2 A perspective view of a protector body;

[0048] Figure 4 According to an exemplary embodiment Figure 1 A perspective view of a gripping body of a connector assembly;

[0049] Figure 5 According to an exemplary embodiment Figure 1 A side cross-sectional view of a barrel of a connector assembly;

[0050] Figure 6 According to an exemplary embodiment Figure 6 A perspective view of a cylinder;

[0051] Figure 7 According to an exemplary embodiment Figure 1 A side cross-sectional view of a separated body of a connector assembly;

[0052] Figure 8 According to an exemplary embodiment Figure 7 A perspective view of a separated subject;

[0053] Fig. 9 According to an exemplary embodiment Figure 1 a side view of a connector assembly;

[0054] Fig.10 yes Fig. 9 a distal end view of a connector assembly;

[0055] Fig.11 yes Fig. 9 A proximal end view of a connector assembly;

[0056] Fig.12 According to an exemplary embodiment Figure 1 A cross-sectional view of a connector assembly;

[0057] Fig.13 According to another exemplary embodiment Figure 1 A cross-sectional view of a connector assembly;

[0058] Fig.14 According to an exemplary embodiment Figure 1A side cross-sectional view of a connector body of a connector assembly;

[0059] Fig.15 According to an exemplary embodiment Fig.14 A side view of a connector body;

[0060] Fig.16 According to an exemplary embodiment Figure 1 A side cross-sectional view of a retainer sleeve of a connector assembly;

[0061] Fig.17 According to an exemplary embodiment Fig.16 A side view of a retainer sleeve;

[0062] Fig.18 yes Fig.16 a side cross-sectional view of a retainer sleeve having a plurality of latches in a released position;

[0063] Fig.19 yes Fig.16 A side cross-sectional view of a retainer sleeve having a Fig.18 Multiple latches;

[0064] Fig. 20 According to an exemplary embodiment, a plurality of Figure 1 a side view of a pipe fitting of a connector assembly;

[0065] Fig.21 According to an exemplary embodiment, a plurality of Figure 1 a side view of a pipe fitting of a connector assembly;

[0066] Fig. 22 According to an exemplary embodiment, a plurality of Figure 1 a side view of a pipe fitting of a connector assembly;

[0067] Fig.23A According to an exemplary embodiment, Figure 1 a side view of a connector assembly and an end wall of a pipe fitting;

[0068] Fig. 23B yes Fig.23A A distal view of a pipe fitting;

[0069] Fig.23C yes Fig.23A A close-end view of a pipe fitting;

[0070] Fig.24 According to an exemplary embodiment, a plurality of Figure 1 a side view of a pipe fitting of a connector assembly;

[0071] Fig.25 According to an exemplary embodiment, a plurality of Figure 1 a side view of a pipe fitting of a connector assembly;

[0072] Fig.26 According to an exemplary embodiment, a plurality of Figure 1 a side view of a pipe fitting of a connector assembly;

[0073] Fig. 27 is a flow chart of a method of assembling a connector assembly according to an exemplary embodiment;

[0074] Fig.28 is a front view of a partially assembled connector assembly positioned on a fixture;

[0075] Fig.29 is located in Fig.28 a front view of a retainer sleeve on a partially assembled connector assembly;

[0076] Fig.30 is a front view of a press operable to partially couple a retainer sleeve to a connector body;

[0077] Fig.31 is a front view of a press according to an exemplary embodiment, the press being operable to fully couple a retainer sleeve to a connector body to form a connector assembly;

[0078] Fig.32 is from Fig.31 a front view of the fully assembled connector assembly operably disengaged from the press;

[0079] Fig.33 It is positioned on the fixture Fig.32 A front view of a connector assembly;

[0080] Fig.34 is an exploded side cross-sectional view of a connector assembly according to another exemplary embodiment;

[0081] Fig.35 Comes fully assembled Fig.34 a side view of a connector assembly;

[0082] Fig.36 yes Fig.34 A perspective view of a retainer sleeve of a connector assembly;

[0083] Fig.37 yes Fig.36 A side view of a retainer sleeve;

[0084] Fig.38 is along Fig.37 a cross-sectional end view taken along line 38-38 of ;

[0085] Fig.39 is along Fig.38 a cross-sectional view taken along line 39-39;

[0086] Fig.40 yes Fig.35 A perspective view of a connector assembly;

[0087] Fig.41 yes Fig.40 an enlarged view of a portion of the connector assembly showing the latch in a released position;

[0088] Fig.42 is a side cross-sectional view of a retainer sleeve exploded from a connector assembly;

[0089] Fig.43 is a side cross-sectional view of a retainer sleeve partially mounted to a connector body of a connector assembly;

[0090] Fig.44 is a side cross-sectional view of the retainer sleeve fully attached to the connector body of the connector assembly, showing the latch in a locked position;

[0091] Fig.45 is an enlarged view of one of the latches in the released position;

[0092] Fig.46 is an exemplary ball valve, showing Fig.35 The connector assembly is mounted to the exemplary ball valve;

[0093] Fig.47 is an exemplary stop valve, showing Fig.35 The connector assembly is mounted to the exemplary shut-off valve;

[0094] FIG. 48A to FIG. 48C are exemplary stamping tools and dies according to the principles of the present disclosure;

[0095] FIG. 49A to FIG. 49B is an exemplary flexible hose showing Fig.35 The connector assembly is mounted on the exemplary flexible hose; and

[0096] Fig.50 is a side view of another retainer sleeve according to the principles of the present disclosure. DETAILED DESCRIPTION

[0097] As used herein, relative directions and the terms "inwardly" and "outwardly" are relative to the longitudinal axis, wherein inwardly is a direction radially toward the longitudinal axis and outwardly is a direction radially away from the longitudinal axis.

[0098] Relative directions and the terms "distal" and "proximal" are used with respect to a connector assembly that is secured to the end of a fluid conduit, with the distal direction being toward the end of the connector assembly at one end of the fluid conduit (e.g., the receiving end of the connector assembly; and the distal direction being toward the end of the connector assembly at the receiving end of the fluid conduit. Figure 1 ), and the proximal direction is toward the beginning of the fluid conduit fastened to the connector assembly (e.g., toward Figure 1 ). Relative direction and the terms lateral or laterally are in a plane generally orthogonal to the longitudinal axis.

[0099] Referring generally to the drawings, there is shown a connector assembly (e.g., a pipe fitting, a push-on fitting, etc.) 120. The connector assembly 120 is configured to sealingly engage an end of a fluid conduit (e.g., form a substantially watertight connection with the end of the fluid conduit), such as a copper pipe, a PEX pipe, a CPVC pipe, a PVC pipe, etc. The connector assembly 120 can be used with fluid conduits of varying diameters, including fluid conduits having a diameter of less than 0.25 inches to fluid conduits having a diameter of more than 2 inches.

[0100] Overall reference Figures 1 to 26 , a connector assembly 120 is shown. The connector assembly 120 includes an annular connector body 124, a retainer sleeve (e.g., a sleeve body) 128, a sealing member (e.g., a sealing ring) 132, a protection ring (protection body) 136, a grip ring (e.g., a grip body) 140, a barrel (e.g., a barrel body) 146, and a removal body (e.g., a removal ring) 154.

[0101] Briefly, the connector body 124 includes a retaining surface 210 at an end thereof. The retaining surface 210 extends circumferentially around the connector body 124. The retainer sleeve 128 has at least one latch 310 extending inwardly at the end of the connector assembly 120, and in this embodiment, has a plurality of latches. The latches 310 engage the retaining surface 210 to connect the retainer sleeve 128 to the connector body 124. In the illustrated embodiment, four equally spaced latches are formed along the retainer sleeve 128; however, a different number and configuration of latches may be employed, such as two, three, five, or six latches equally or unequally spaced along the retainer sleeve 128, without departing from the scope of the present disclosure.

[0102] As described above and in further detail below, the connector assembly 120 has other components that are retained between and preferably housed in the connector body 124 and the retainer sleeve 128. For example, the sealing member 132 is urged (e.g., pressed) toward the inner shoulder 242 of the connector body 124 by the inwardly stepped protrusion 406 of the protection ring 136. The grip ring 140 has an annular base 442 with a plurality of protrusions in the form of teeth 444 extending inwardly and distally toward the connector body 124. The barrel 146 has a tubular wall 448 near its distal end and a proximal end 450 of smaller diameter opposite the tubular wall 448. The tubular wall 448 fits into a recess in the connector body 124 having an annular inner shoulder 242 that limits movement in the longitudinal direction along the longitudinal axis 122. The tubular wall 448 extends along the longitudinal axis 122 and surrounds the sealing member 132 , the protection ring 136 , and the grip ring 140 .

[0103] The disassembly body 154 is also located within the retainer sleeve 128 and includes a tubular proximal end (e.g., a free end) 458 that passes through the proximal end 450 of the barrel 146 when the disassembly body 154 extends along the longitudinal axis 122. A stop flange 460 is positioned between the inclined distal surface 456 and the tubular proximal end 458. The stop flange 460 contacts a second inner shoulder 462 of the barrel 146. The inclined distal surface 456 can have a frustoconical profile that is inclined toward the longitudinal axis 122 and inclined toward the connector body 124. The inclined distal surface 456 is further configured to generally conform to the tapered shape formed by the inclined teeth 444 of the grip ring 140 and is inclined toward the sealing member 132.

[0104] Further describing the above components in detail, the connector body 124 can be made of the following materials: metal materials (e.g., brass, such as Bi brass, naval brass, Si brass; stainless steel, etc.); plastic or other polymer materials suitable for the intended application, such as polyethylene, PPR or UHMWPE, or any combination thereof; composite materials; or any combination of the foregoing materials. The fluid and pressure conveyed by the fluid conduit will determine the appropriate materials for the conduit and the connector body 124.

[0105] In some embodiments, the connector body 124 can be a straight connector body 124a or a coupling ( Fig. 20 )、T-shaped connector body 124b( Fig.21 )、Edge connector body 124c( Fig. 22 ), a blind end connector body 24d (which blocks flow through the fluid conduit) FIG. 23A to FIG. 23C ) (similar to connector body 124), connector bodies configured to receive fluid conduits of varying diameters, angled connector bodies 124e ( Fig.24 ), multi-way (or 4-way) connector body 124f ( Fig.25 )、Y-shaped connector body 124g( Fig.26 ), T-shaped connector bodies, other types of connector bodies, or combinations of connector bodies. The connector bodies 124a to 124g may have a similar or identical retaining arrangement to the retaining surface 210 so as to complement the retaining surface 210. FIG. 23A to FIG. 23C As shown, the connector body 124d, which is a blind end connector body, has an end wall 204 that closes the fluid passage through the connector body 124d. The end wall 204 forms a tube stop that limits the movement of the fluid conduit through the connector body 124d.

[0106] The first end 200 of the connector body 124 is slightly chamfered so that when the retainer sleeve 128 and the connector body 124 move relative to each other, the first end 200 can resiliently push the resilient latch 310 outward until the latch 310 engages with the retaining surface 210. It is understood that the chamfer can be included on any of the connector bodies 124a to 124g. An inclined outer shoulder surface 216 adjacent to the retaining surface 210 can optionally be provided with a shoulder surface 216 that is inclined inward and toward the first end 200 to align with the latch 310. The shoulder surface 216 can prevent the latch 310 from bending inwardly and can strengthen the latch-retaining connection (e.g., the connection between the latch 310 and the retaining surface 210) to better resist separation of the connector assembly 120 along the longitudinal axis 122.

[0107] Specific reference Figure 1 , shows an exploded cross-sectional view of the connector assembly 120. The connector assembly 120 extends along and is centered on a longitudinal axis 122. Figures 9 to 13 as well as Fig.19 As shown, when the connector assembly 120 is fully assembled, the sealing member 132, the protective ring 136, the gripping ring 140, the barrel 146, and the disassembly body 154 are all positioned (e.g., inserted) between the retainer sleeve 128 and the connector body 124. The retainer sleeve 128 and the connector body 124 are coupled together so that the remaining portions of the connector assembly 120 (the sealing member 132, the protective ring 136, the gripping ring 140, the barrel 146, and the disassembly body 154) are held in a confronting relationship with each other (e.g., pressed, compressed, clamped together, etc.) without the need to individually couple each component together, such as by potting, adhesives, fasteners, latches, etc.

[0108] The sealing member 132 is formed of an elastic material, such as rubber, EPDM or other suitable elastomer. The sealing member 132 is shown as an O-ring having a circular cross-section. However, in some embodiments, the sealing member 132 can have a variety of cross-sectional shapes, such as rectangular, oval, pill-shaped, etc. The inner and outer diameters of the sealing member 132 are selected to fit into and seal against the connector body 124, and form a substantially fluid-tight seal with a fluid conduit passing through the inner diameter of the sealing member 132. In some embodiments, the inner shoulder 242 is configured to seal against the sealing member 132. As shown in FIG. Fig.14 As shown, the inner shoulder 242 is continuous with the inner surface 240 at a curved corner 243. The radius of the curved corner can be selected to conform to the shape and size of the cross-section of the sealing member 132.

[0109] Reference now Figure 2 and Figure 3 , a protective ring 136 according to an exemplary embodiment is shown. The protective ring 136 includes a first end 400 (e.g., a proximal end) and a second end 402 (e.g., a distal end) opposite the first end 400. The second end 402 is configured to fit within the first end 200 of the connector body 124 to constrain the sealing member 132 between the inner shoulder 242 and the protective ring 136. The sealing member 132 is allowed to translate axially along the longitudinal axis 122 between the inner shoulder 242 and the protective ring 136. In some embodiments, the sealing member 132 is allowed to translate a distance of 2 mm to 5 mm along the longitudinal axis 122. The second end 402 is preferably cylindrical, as is the larger diameter outer body of the annular protective ring 136, so as to form an annular radially inwardly extending protective shoulder 404, which acts as a stopper that contacts the first end 200 of the connector body 124 to limit the relative axial position of the protective ring 136 and the connector body 124 along the longitudinal axis 122.

[0110] In addition, the protective shoulder 404 facilitates centering (centering) the protective ring 136 within the connector body 124. When the protective shoulder 404 is engaged with the first end 200, the second end 402 extends toward the inner shoulder 242 by a predetermined distance, thereby limiting the axial movement of the sealing member 132 along the longitudinal axis 122 to 2 mm to 5 mm. In other words, the protective ring 136 includes a protrusion 406 extending away from the protective shoulder 404, and the protrusion 406 facilitates positioning the sealing member 132 in the fluid passage along the longitudinal axis 122. The extension of the protrusion 406 through at least a portion of the connector body 124 helps support the received fluid conduit and helps achieve a higher pressure rating (e.g., a burst failure rating) of the connector assembly 120. In addition, the protective shoulder 404 reduces the tolerance "build-up" that may affect the positioning of the sealing member 132 and the effectiveness of the sealing engagement between the received fluid conduit, the sealing member 132 and the rest of the connector assembly 120. Therefore, the protrusion 406 plays an auxiliary role during assembly, so that calibration requirements can be reduced. Additionally, the protective shoulder 404 extends radially outward only a short distance and extends radially outward less than the first portion diameter 209 .

[0111] The protection ring 136 includes an inclined surface 410 that is inclined inwardly and toward the second end 402 of the protection ring 136 so as to be generally aligned with the teeth 444 of the grip ring 140. The inclined surface 410 forms a generally frustoconical surface. The axial length of the protection ring 136 and the inclined surface 410 prevent the teeth 444 of the grip ring 140 from contacting and damaging the sealing member 132. The protection ring 136 can be made of a suitable plastic, including, for example, but not limited to, a thermoplastic such as nylon fiber.

[0112] Reference now Figure 4 , shows a grip ring 140 according to an exemplary embodiment. The grip ring 140 is made of a metal such as stainless steel and includes a flat, radially extending base 442 and a plurality of teeth 444 surrounding the longitudinal axis 122. The teeth 444 are equally spaced circumferentially and are sufficient in number to elastically engage the outer surface of the fluid conduit. The teeth 444 bite into the outer surface of the fluid conduit to selectively prevent the fluid conduit from being removed from the connector assembly 120 along the longitudinal axis 122. When the connector assembly 120 is assembled, the grip ring 140 is held between the barrel 146 and the protective ring 136. The first end 400 of the protective ring 136 engages the distal side of the base 442, while the first inner shoulder 452 ( Figure 5 ) contacts the proximal side of the base 442. When the fluid conduit passes through the opening formed by the teeth 444, the teeth 444 bend radially outward and toward the inclined surface 410. One or both of the inner diameter of the protection ring 136 and the relative angles of the teeth 444 can limit the maximum diameter of the fluid conduit that can be inserted through the grip ring 140 and the protection ring 136.

[0113] Reference now Figure 5 and Figure 6 , shows a barrel 146 according to an exemplary embodiment. The barrel 146 includes a second inner shoulder 462 extending radially inward from the first inner shoulder 452. The first inner shoulder 452 forms an axial alignment surface, against which the stop flange 460 of the disassembly body 154 abuts to limit the axial movement of the disassembly body 154 relative to the barrel 146 in one axial direction. The tubular proximal end 458 ( Figure 7 ), until the stop flange 460 contacts the second inner shoulder 462 on the barrel 146. Thus, the barrel 146 limits the movement of the disassembly body 154 and / or the gripping ring 140 along the longitudinal axis 122 (in the proximal direction). The disassembly body 154 can move in the distal direction along the longitudinal axis 122 and can cause the teeth 444 to expand outwardly to disengage the teeth 444 from the fluid conduit previously engaged with the teeth 444. Thus, applying a force in the distal direction on the proximal end 458 of the disassembly body 154 can disengage the teeth 444 from the fluid conduit and allow the fluid conduit to be removed from the connector assembly 120. The barrel 146 can be formed of a suitable strong polymer that is compatible with the fluid carried in the fluid conduit. In some embodiments, the barrel 146 is formed of POM (polyoxymethylene).

[0114] Now refer to Figure 7 and Figure 8 , shows a disassembly body 154 according to an exemplary embodiment. When the connector assembly 120 is assembled, the disassembly body 154 is positioned within the barrel 146 and is configured to move axially along the longitudinal axis 122 while being positioned within the barrel 146. The inclined distal surface 456 of the disassembly body 154 is located on the proximal side of the tooth 444, while the inclined surface 410 on the protective ring 136 is located on the distal side of the tooth 444. The tooth 444 is inserted between the inclined distal surface 456 and the inclined surface 410. Advantageously, the inclined distal surface 456 on the disassembly body 154 is configured to engage with the base of the adjacent base 442 of the tooth 444. The disassembly body 154 can be made of POM.

[0115] The construction of the connector assembly 120 is described in further detail below. The protective ring 136 advantageously has an engagement member 477 ( Figure 2 ), the engagement member 477 extends radially away from the outer surface of the protection ring 136 and is configured to cooperate with another engagement component on the barrel 146. The illustrated configuration of the engagement member 477 includes a slight outward protrusion, preferably a slightly raised circumferential ring with an inclined leading edge and / or trailing edge. When the connector assembly 120 is assembled, the engagement member 477 is located in a circumferential recess 479 ( Figure 5) and is configured to fit into the circumferential recess. Advantageously, when the engagement member 477 on the protection ring 136 engages with the recess 479 on the barrel 146, the protection ring 136 and the barrel 146 are held together to secure the gripping ring 140 between the first inner shoulder 452 on the barrel 146 and the first end 400 of the protection ring 136. In addition, the removal body 154 is preferably arranged so that the stop flange 460 engages with the second inner shoulder 462 of the barrel 146. The snap connection of the engagement member 477 and the recess 479 limits the removal of the removal body 154 from the barrel 146. The removal body 154 can move axially between the second inner shoulder 462 and the gripping ring 140. The barrel 146 and the protection ring 136 can thus form a snap-fit ​​subassembly that limits the movement of the removal body 154 and the gripping ring 140 so that these components can move together as a unit.

[0116] The diameter of the tubular wall 448 is selected so that the tubular wall 448 engages the connector body 124. When the barrel 146 engages the connector body 124, the grip ring 140 is coupled between the protection ring 136 and the first inner shoulder 452 on the barrel 146, and the removal body 154 is positioned so that the inclined distal surface 456 does not push the teeth 444 radially outward and away from the longitudinal axis 122. Advantageously, the protection ring 136 extends into the connector body 124 and, as described above, allows the sealing member 132 to move axially about 2 mm to 5 mm along the longitudinal axis 122 before contacting the protection ring 136 or the inner shoulder 242 on the connector body 124. When the distal end of the fluid conduit contacts the sealing member 132, the axial movement of the sealing member 132 is insufficient to deflect or tilt the sealing member 132 sufficiently to become misaligned.

[0117] Reference now Fig. 9 , shows a side view of a connector assembly 120 according to an exemplary embodiment. When the retainer sleeve 128 is coupled to the connector body 124, the retainer sleeve 128 covers a portion of the connector body 124. A portion of the barrel 146 extends axially out of the proximal end of the retainer sleeve 128, and a portion of the disassembly body 154 extends axially out of the proximal ends of both the retainer sleeve 128 and the barrel 146. In some embodiments, the connector assembly 120 does not include the end wall 204, and the fluid is configured to flow through both ends of the connector assembly 120.

[0118] Reference now Fig.10 , shows a distal end view of a connector assembly 120 according to another exemplary embodiment. The connector body 124 may include an end wall 204 so that the connector body 124 has a closed end that cuts off a fluid passage through the connector assembly 120 along the longitudinal axis 122. In some embodiments, for example Figure 1As shown, the connector body 124 has a central bore 205 that allows a fluid passage to extend all the way through the connector body 124 .

[0119] Reference now Fig.11 , shows a proximal end view of a connector assembly 120 according to an exemplary embodiment. The proximal end of the connector assembly 120 is configured to receive a fluid conduit.

[0120] Reference now Fig.12 and Fig.13 , shows a side cross-sectional view of a connector assembly 120 according to an exemplary embodiment. After the connector assembly 120 is assembled, the fluid conduit can then be inserted through the open end of the connector assembly 120. The fluid conduit is inserted through the retainer sleeve 128, through the disassembly body 154, and through the tubular wall 448 of the barrel 146 until the distal end of the fluid conduit passes through the grip ring 140, the protective ring 136, and the sealing member 132. In some embodiments, the fluid conduit contacts a hard stop that stops the relative axial movement of the fluid conduit along the longitudinal axis 122. In some embodiments, the connector assembly 120 includes a liner 480 retained within the connector assembly 120. The liner 480 helps to support the inner wall of the fluid conduit configured to be received by the connector assembly 120. In this regard, the liner 480 will be located inside the disassembly body 154 and configured to receive the fluid conduit.

[0121] The teeth 444 prevent the fluid conduit from being pulled out of the proximal end of the connector assembly 120. The outer diameter of the fluid conduit is greater than the inner diameter of the sealing member 132 to form a substantially fluid-tight seal. Depending on the desired or allowed fluid seal or leakage amount, the interference fit between the sealing member 132 and the fluid conduit can vary. Advantageously, the sealing member 132 is allowed to slide axially in the cylindrical recess, terminating at the inner shoulder 242 at a distance of about 2 mm to 5 mm along the longitudinal axis 122. Alternatively, in some embodiments, the sealing member 132 can be pressed against the inner shoulder 242 by the second end 402 of the protective ring 136. That is, the protrusion 406 can, for example, extend to a position that compresses the sealing member 132. This can increase the integrity of the sealing engagement achieved by the sealing member 132.

[0122] In addition, to prevent accidental disengagement of the fluid conduit from the connector assembly 120, the tubular proximal end 458 of the disassembly body 154 has a selected axial length that terminates with the proximal end of the retainer sleeve 128 and / or the barrel 146. Thus, the sleeve opening 368, the proximal end of the disassembly body 154, the tubular proximal end 458, and the proximal end 450 of the barrel 146 are in the same general plane. Advantageously, the disassembly body 154 is slightly distal about 1 mm or less relative to a plane passing through the proximal end 458 and / or the proximal end 450. The barrel 146 is in contact with the connector body 124 and can remain stationary relative to the disassembly body 154, which is configured to move axially toward the connector body 124. To avoid accidental contact between the proximal end of the removal body 154 and the grip ring 140 (contact that may reduce the gripping force of the grip ring 140 on the fluid conduit), the proximal end of the removal body 154 may be flush with or slightly away from both the first end 300 of the retainer sleeve 128 and the proximal end of the barrel 146, so that when a force is provided to the barrel 146 or the connector body 124 on at least the removal body 154, the connector body 124 and the barrel 146 resist axial movement of the removal body 154. In other words, the removal body 154 is positioned so that an external force applied from at least the removal body 154 to the barrel 146 will not allow the removal body 154 to move to a position that disengages the teeth 444 from the fluid conduit. On this basis, in order to release the fluid conduit, the connector assembly 120 may require a specific tool to engage the removal body 154 alone without engaging other components of the connector assembly 120.

[0123] To remove the fluid conduit from the connector assembly 120, the removal body 154 is pushed axially along the longitudinal axis 122 toward the distal end of the connector assembly 120 (e.g., using a dedicated tool) and toward the connector body 124, so that the inclined surface 410 of the removal body 154 engages with the teeth 444 and extends the teeth 444 outward, thereby disengaging the teeth 444 from the outer surface of the fluid conduit and allowing the fluid conduit to be removed along the longitudinal axis 122. Thus, the connector assembly 120 is configured such that a portion of the connector assembly 120 surrounds and prevents lateral movement of the fluid conduit relative to the connector assembly 120, and prevents lateral removal of the fluid conduit from the connector assembly 120.

[0124] Advantageously, the connector assembly 120 allows components (e.g., fluid conduits) to be arranged and snapped together for relatively convenient use. The connector assembly 120 does not require manual deformation of any component to produce a substantially watertight engagement with the fluid conduit. The connector assembly 120 only needs to be placed on the end of the fluid conduit, and either or both of the connector assembly 120 and the fluid conduit are moved axially together to connect them, so that the sealing member 132 provides a fluid-tight connection, while the connector body 124 (or 124a to 124g) allows the fluid conduit to be used for a variety of fluid connections. If the user wishes to disconnect these components, the disassembly body 154 can be used and manually pressed to disengage the fluid conduit, although it is preferred to use a tool to engage the proximal end of the disassembly body 154 and move it axially along the longitudinal axis 122 to release the grip ring 140 and disengage the fluid conduit. If it is necessary to open the connector assembly 120 , a tool may be inserted into each latch opening 314 in the sleeve side wall 303 to push each of the plurality of latches 310 out of engagement with the retaining surface 210 , thereby disassembling the connector assembly 120 .

[0125] Advantageously, the latch opening 314 does not allow for manual access by a user's fingers to release the latch members 311 from the catch surface 210. The use of two or more matching latches and catches and the tight fit of the retainer sleeve 128 around the closure member make it impractical to sequentially release the multiple latches 310 from the catch surface 210. Therefore, preferably, the multiple latches 310 cannot be disengaged from the catch surface 210 without special tools or without permanently deforming at least one of the retainer sleeve 128 or the connector body 124. Therefore, the connection between the multiple latches 310 and the catch surface 210 is not a releasable (e.g., removable, selectively releasable) connection and may require deformation or breakage of the retainer sleeve 128 or the connector body 124, which may result in a visible record (e.g., marking) of the disconnection of the multiple latches 310. In some embodiments, the plurality of latches 310 and the retaining surfaces 210 form a permanent connection between the retainer sleeve 128 and the connector body 124 that cannot be removed without destroying the connector assembly 120 .

[0126] As described above, the connector assembly 120 can be formed from one or more materials. For high strength or high pressure applications, it is considered appropriate that all components except the sealing member 132 are made of suitable metals. The materials used for the fluid conduit will vary depending on the intended use and can include metal tubes (e.g., copper, brass, iron), hard plastic tubes (e.g., for plumbing), flexible tubes of plastic or braided metal, and braided plastic or other braided materials.

[0127] Reference now Fig.14, shows a side cross-sectional view of a connector body 124 according to an exemplary embodiment. The connector body 124 includes a substantially annular body having a first end 200 (e.g., distal end) and a second end 202 (e.g., proximal end) opposite the first end 200. The first end 200 is configured to receive a fluid conduit, such as a copper tube. Fig.14 , the second end 202 is open such that fluid is configured to flow through both ends (e.g., the first end 200 and the second end 202) of the connector body 124. The second end 202 can be fluidly coupled to a pipe fitting having a plurality of connector assemblies 120. For example, a T-fitting can include three connector assemblies 120. Figure 20 to Figure 26 Other exemplary accessories are shown. In some embodiments, FIG. 23A to FIG. 23C As generally shown in FIG. 2 , the second end 202 includes an end wall 204 that is fluid sealed and provides a hard stop for the fluid conduit.

[0128] The connector body 124 also includes a first portion (e.g., a flange) 206 that extends radially away from the annular body near the first end 200. The first portion 206 extends circumferentially around the longitudinal axis 122. The first portion 206 includes a first engagement surface 208 and a retaining surface 210. The first engagement surface 208 is the outermost radial surface of the first portion 206. In some embodiments, the first engagement surface 208 is concentric with the longitudinal axis 122. The first engagement surface 208 defines a first portion diameter 209 (e.g., a first diameter). The retaining surface 210 is continuous with the first engagement surface 208, extends circumferentially around the longitudinal axis 122, and extends substantially perpendicular to the longitudinal axis 122.

[0129] The connector assembly 120 also includes an interference portion (or interference feature) 212 positioned along the connector body 124. For example, Fig.14 and Fig.15 As shown, the interference portion 212 extends circumferentially around the connector body 124 at a position between the first end 200 and the second end 202. In some embodiments, the interference portion 212 extends circumferentially around the connector body 124 at a position between the first portion 206 and the second end 202. In some embodiments, the interference portion 212 is located at a position approximately midway between the first end 200 and the second end 202. In some embodiments, the interference portion 212 is positioned closer to the first end 200 than the second end 202. The interference portion 212 includes a second engagement surface 214. The second engagement surface 214 is the outermost radial surface of the interference portion 212. In some embodiments, the second engagement surface 214 is concentric with the longitudinal axis 122 and the first engagement surface 208. The second engagement surface 214 defines a second portion diameter 218 (e.g., a second diameter).

[0130] The connector assembly 120 also includes a shoulder surface 216. The shoulder surface 216 is continuous with the second engagement surface 214 and extends circumferentially around the longitudinal axis 122. The shoulder surface 216 defines a frustoconical profile that expands to a larger diameter as the shoulder surface 216 extends from the first portion 206 to the interference portion 212. The shoulder surface 216 acts as a ramp that guides a portion of the retainer sleeve 128 into engagement with the second engagement surface 214 during assembly. In some embodiments, the second portion diameter 218 is larger than the first portion diameter 209. In some embodiments, the second portion diameter 218 is larger than the first portion diameter 209 by an amount between about 0.3 mm (millimeters) and about 0.5 mm, inclusive.

[0131] During assembly of the connector assembly 120, the interference portion 212 may be interposed between the retainer sleeve 128 and the connector body 124. In some embodiments, the interference portion 212 is coupled to the connector body 124. In the illustrated embodiment, as shown in FIG. Fig.14 and Fig.15 As shown, the interference portion 212 and the shoulder surface 216 are integrally formed with the connector body 124. As used herein, two or more elements are "integrally formed" with each other when two or more elements are formed and connected together as part of a single manufacturing step to form a single piece or unitary construction that cannot be disassembled without at least partial destruction of the entire component. For example, the interference portion 212 and the shoulder surface 216 can be formed into the connector body 124 by turning, milling or other suitable cutting or machining processes so that the interference portion 212 and the connector body 124 are integrally formed. In other examples, the connector body 124 can be molded or otherwise formed to include the interference portion 212 and the shoulder surface 216. In additional or alternative embodiments, the interference portion 212 can be part of or coupled to the retainer sleeve 128. For example, the interference portion 212 may include a plurality of ribs, protrusions, etc., or groups or groups thereof formed along the inner surface of the retainer sleeve 128 or connected to the inner surface of the retainer sleeve 128, and the plurality of ribs, protrusions, etc., or groups or groups thereof are configured to engage with the connector body 124 to promote an interference fit between the connector body 124 and the retainer sleeve 128.

[0132] In some embodiments, the interference portion 212 can be formed separately from the connector body 124 and subsequently coupled to the connector body 124. For example, the interference portion 212 can include an annular ring, such as a circlip or other movable, removable portion, that can be selectively positioned around the connector body 124. Additionally, the shoulder surface 216 can be formed separately from the connector body 124 and subsequently coupled to the connector body 124. For example, during assembly of the connector assembly 120, the shoulder surface 216 can be inserted between the retainer sleeve 128 and the connector body 124. In some embodiments, the shoulder surface 216 is coupled to the connector body 124. In some embodiments, the shoulder surface 216 can slide between the first portion 206 and the interference portion 212.

[0133] Reference Fig.15 The interference portion 212 may include a flange or other protrusion (e.g., a second flange 213) extending radially away from the connector body 124 at a position between the first portion 206 and the second end 202. In some embodiments, the second flange 213 is located approximately midway between the first end 200 and the second end 202. In some embodiments, the second flange 213 is located closer to the first end 200 than the second end 202. The second flange 213 includes a second engagement surface 214 and a shoulder surface 216. The second engagement surface 214 is the outermost radial surface of the second flange 213.

[0134] A connector body groove 230 (e.g., a channel or other recessed area) is positioned between the first portion 206 and the interference portion 212. The connector body groove 230 includes a groove surface 232 that extends circumferentially around the longitudinal axis 122. In some embodiments, the groove surface 232 is generally concentric with and parallel to the longitudinal axis 122. In some embodiments, the shoulder surface 216 extends between the first portion 206 and the interference portion 212 such that the shoulder surface 216 is continuous with the retaining surface 210.

[0135] Refer again Fig.14 , an inner shoulder 242 is shown extending radially inward from the inner surface 240 of the connector body 124. The inner shoulder 242 is configured to cooperate with the sealing member 132 to form a substantially watertight seal between the connector body 124, the sealing member 132 and the entirety of the fluid conduit when the fluid conduit extends into the connector assembly 120.

[0136] Now refer to Fig.16, a cross-sectional view of the retainer sleeve 128 is shown. The retainer sleeve 128 includes a substantially annular body having a first end 300 (e.g., a proximal end) and a second end 302 (e.g., a distal end) opposite the first end 300. The first end 300 is configured to receive a fluid conduit, such as a copper tube. The second end 302 is configured to receive the connector body 124 and cover at least a portion of the connector body 124.

[0137] The retainer sleeve 128 also includes a sleeve opening 368 extending into the first end 300 and extending along the longitudinal axis 122. The sleeve opening 368 is sized to allow the proximal end 450 of the barrel 146 to pass therethrough. Advantageously, the fit between the sleeve opening 368 and the proximal end 450 of the barrel 146 is snug (e.g., a sliding fit) such that the retainer sleeve 128 radially supports the proximal end 450 of the barrel 146, which in turn supports the proximal end 458 of the disassembly body 154, which in turn further supports the fluid conduit passing through the disassembly body 154. The first end 300 of the retainer sleeve 128 includes a circular reduced diameter portion proximate the first end 300, shown as a sleeve radius 384. The sleeve radius 384 increases the radial and axial stiffness of the retainer sleeve 128 and allows for suitable clearance for components housed within the retainer sleeve 128. As an example, a first end 300 of the retainer sleeve 128 is shown as including a straight portion extending axially away from the sleeve radius 384, which increases the strength of the retainer sleeve 128 and prevents (e.g., inhibits) the expansion of the retainer sleeve 128. The outer periphery of the retainer sleeve 128 preferably conforms to the contour of the components inside the retainer sleeve 128, including the portion of the connector body 124 surrounded by the retainer sleeve 128. Advantageously, the second end 302 of the retainer sleeve 128 overlaps a portion of the connector body 124. As described above, the remainder of the connector body 124 will vary depending on whether the connector body 124 is an in-line connector, an elbow connector, a T-connector, a Y-connector, a multi-tube connector, a blind-end connector, or another type of connector.

[0138] The retainer sleeve 128 also includes a sleeve sidewall 303 having an inner sleeve surface 304 extending between the first end 300 and the second end 302. The inner sleeve surface 304 defines a sleeve diameter 308 (e.g., a third diameter). In some embodiments, the sleeve diameter 308 is greater than the first portion diameter 209 and less than the second portion diameter 218. In some embodiments, the sleeve diameter 308 is less than both the first portion diameter 209 and the second portion diameter 218.

[0139] The retainer sleeve 128 also includes a plurality of latches 310, which include at least one latch member 311. Each of the plurality of latches 310 extends radially inward from the inner sleeve surface 304 and toward the longitudinal axis 122. Each of the plurality of latches 310 includes a resiliently flexible protrusion in the form of a rectangular tab. A latch opening 314 is positioned at the proximal end of each of the plurality of latches 310 and extends through the sleeve sidewall 303. In some embodiments, each of the plurality of latches 310 includes an elongated member that is resiliently urged in a direction toward the longitudinal axis 122 and is configured to engage with the retaining surface 210 when the retainer sleeve 128 is coupled to the connector body 124. Each of the plurality of latches 310 is shown in a release position 313. In the release position 313, the plurality of latches 310 extend radially inward from the inner sleeve surface 304 at a first non-zero angle relative to the longitudinal axis 122. In some embodiments, the first non-zero angle can be greater than 15 degrees, such as between 15 degrees and 30 degrees, or between 30 degrees and 45 degrees, inclusive. In some embodiments, the first non-zero angle is a non-zero angle of five degrees or less. Thus, each of the plurality of latches 310 extends transversely toward the longitudinal axis 122 so as to extend into the connector body recess 230 and engage the retaining surface 210.

[0140] Each of the plurality of latches 310 is cut into the sleeve sidewall 303 so that each of the plurality of latches 310 is integrally formed with the retainer sleeve 128. In some embodiments, each of the plurality of latches 310 comprises a rectangular profile. In some embodiments, each of the plurality of latches 310 comprises a trapezoidal profile. In some embodiments, each of the plurality of latches 310 comprises a circular profile. After at least one of the plurality of latches 310 is formed with the retainer sleeve 128, at least one latch member 311 is bent radially inwardly toward the longitudinal axis 122. The latch opening 314 in the sidewall 303 defines a latch end 312 (e.g., a free end, a proximal end, etc.) of the latch member 311. Two parallel cutouts 316 substantially parallel to the longitudinal axis 122 extend into the sleeve sidewall 303 and toward the latch opening 314 to define the remaining two sides of the generally rectangular plate forming the latch member 311. Because the sleeve sidewall 303 is curved, the latch end 312 of the latch member 311 is slightly curved with the same overall curvature as the sleeve sidewall 303. When the retainer sleeve 128 is coupled to the connector body 124, the curvature of the latch member 311 can approach the curvature of the groove surface 232. The curvature (e.g., radius) of the latch member 311 provides reinforcement to the latch member 311 and increases the burst failure pressure of the connector assembly 120.

[0141] The retainer sleeve 128 also includes an end or region 326 proximate the second end 302. The end 326 extends between the second end 302 and the base of the plurality of latches 310. The curved surface 328 is Fig.16 and Fig.17 326 is delineated with dashed lines to illustrate the approximate location of the bend (bend) of the plurality of latches 310 (e.g., the base of the plurality of latches 310). When the retainer sleeve 128 is coupled to the connector body 124, the end portion 326 engages the second engagement surface 214 of the interference portion 212. In some embodiments, such as when the sleeve diameter 308 is less than the second portion diameter 218, the end portion 326 expands to the second portion diameter 218 so that an interference fit is formed between the retainer sleeve 128 and the connector body 124. As a result, the end portion 326 is at least one of plastically deformed or elastically deformed to correspond to the second portion diameter 218.

[0142] For example, sleeve diameter 308 may be approximately 0.001 inches to approximately 0.005 inches (approximately between approximately 0.0254 millimeters to approximately 0.127 millimeters) smaller than second portion diameter 218. When retainer sleeve 128 is pressed onto connector body 124, second end 302 of retainer sleeve 128 engages shoulder surface 216, which facilitates expansion of end portion 326 to second portion diameter 218.

[0143] In some embodiments, the sleeve diameter 308 can be between about 0.008 and about 0.02 inches smaller than the second portion diameter 218 (e.g., between about 0.2 millimeters and about 0.5 millimeters). As will be appreciated by one of ordinary skill in the art, interference fits having the aforementioned tolerance ranges are generally tighter than standard and acceptable interference fits. As used herein, the terms "enhanced interference fit" and "increased interference fit" are used to refer to an interference fit that is tighter than an acceptable or typical interference fit (e.g., a shaft having a larger diameter than the conventionally acceptable diameter for a given size of hole). As will be appreciated by one of ordinary skill in the art, forming an interference fit between two components outside of the acceptable tolerance range can result in a fit that is too loose (e.g., a partial interference fit that can compromise the rigidity of the fitting under load) or too tight (e.g., resulting in unintentional damage to the components during assembly and / or use, such as resulting in reaming of a new hole in the shaft, bending / breaking of the shaft, or cracking of the hole).

[0144] Reference now Fig.18 and Fig.19 , showing the retainer sleeve 128 before and after being coupled to the connector body 124. Fig.18, the plurality of latches 310 are in a released (e.g., initial, first, resting, unlocked, etc.) position 313. In the released position 313, the plurality of latches 310 may extend at a first non-zero angle relative to the longitudinal axis 122. When the retainer sleeve 128 is coupled to the connector body 124, the thin sidewall 303 of the retainer sleeve 128 allows the end 326 to expand radially outward to the second portion diameter 218 to form an expanded portion 327.

[0145] See now Fig.19 , the retainer sleeve 128 is shown coupled to the connector body 124, wherein the plurality of latches 310 are shown in a locked (e.g., second, engaged, raised, etc.) position 315. In the locked position 315, the plurality of latches 310 are in a position, orientation, configuration, etc. (i.e., a second position, orientation, configuration, etc.) that is different from the position, orientation, configuration, etc. of the latches in the initial release position 313 (i.e., the first position, orientation, configuration, etc.), wherein the second position, orientation, configuration, etc. of the plurality of latches 310 improves, enhances, etc. the engagement between the plurality of latches 310 and the connector body 124. For example, in the locked position 315, the free ends 312 of the latch members 311 may be spaced further away from the inner sleeve surface 304 of the retainer sleeve 128 than the latch members 311 in the initial release position 313. That is, the distance between the free end 312 of the latch member 311 and the inner sleeve surface 304 of the retainer sleeve 128 in the locked position 315 is greater than the distance between the free end 312 of the latch member 311 and the inner sleeve surface 304 of the retainer sleeve 128 in the initial release position 313. Therefore, the plurality of latches 310 have improved / enhanced engagement with the retaining surface 210 on the connector body 124 (e.g., the increased distance between the free end 312 of the latch member 311 and the retainer sleeve 128 increases the area or portion of engagement between the latch member 311 and the retaining surface 210 (or groove surface 232), reduces the likelihood of partial or discontinuous engagement between the plurality of latches 310 and the retaining surface 210 (or groove surface 232), or increases the engagement force between the plurality of latches 310 and the retaining surface 210 (or groove surface 232)). Additionally, in the locked position 315 , the plurality of latches 310 may extend radially inward at a second non-zero angle relative to the longitudinal axis 122 that is greater than the first non-zero angle of the plurality of latches 310 in the initial release position 313 .

[0146] In some embodiments, the plurality of latches 310 are biased radially outwardly such that the plurality of latches 310 are more aligned with the sidewall 303 in the locked position 315 than in the released position 313. In some embodiments, the flared portion 327 of the end portion 326 is substantially retained within the end portion 326 (e.g., between the curved plane 328 and the second end 302). In some embodiments, when the retainer sleeve 128 is coupled to the connector body 124, an enhanced (e.g., increased, extreme, etc.) interference fit creates (e.g., imparts) a slight flare in the retainer sleeve 128 that extends beyond the curved plane 328 and toward the first end 300. In some embodiments, the end portion 326 flares radially outwardly at the second end 302 such that the second end 302 has a diameter greater than a mid-diameter of the retainer sleeve 128. In some embodiments, the flared portion 327 extends radially away from the longitudinal axis 122 at a non-zero angle. When retainer sleeve 128 is coupled to connector body 124 , second end 302 defines a third diameter 329 that is greater than second portion diameter 218 .

[0147] The expansion of the end 326 causes the plurality of latches 310 to deform (e.g., lift, bend, bias, etc.) toward the longitudinal axis 122. In other words, when the end 326 engages the interference portion 212, each of the plurality of latches 310 transitions from the release position 313 to the locked position 315. In the release position 313, each of the plurality of latches 310 extends radially inward from the inner sleeve surface 304 at a first non-zero angle. In the locked position 315, each of the plurality of latches 310 is biased radially inward toward the connector body 124 to improve engagement between the plurality of latches 310 and the connector body groove 230. In some embodiments, the plurality of latches 310 bite (e.g., sink) into the retaining surface 210 (or groove surface 232) to improve the connection between the retainer sleeve 128 and the connector body 124.

[0148] The transition of the plurality of latches 310 from the release position 313 to the locked position 315 when the end portion 326 is engaged with the interference portion 212 facilitates increasing the failure strength of the connector assembly 120. In other words, when the plurality of latches 310 is in the locked position 315, the environmental burst strength is improved (e.g., at least in part due to the increased engagement of the plurality of latches 310), and the failure point may be a failure between the fluid conduit and the teeth 444, rather than a failure at the engagement of the retainer sleeve 128 with the connector body 124.

[0149] When the retainer sleeve 128 is coupled to the connector body 124, the interference portion 212 engages the end portion 326 and causes the second end 302 of the retainer sleeve 128 to expand outwardly relative to the second portion diameter 218. The expansion of the end portion 326 causes the plurality of latches 310 to deform (e.g., to extend around the second portion diameter 218). Fig.19The curved plane 328 shown is rotated or otherwise raised) and engages with the retaining surface 210 (or the groove surface 232). The lifting of the plurality of latches 310 can increase the engagement (e.g., bonding, engagement force, etc.) between the plurality of latches 310 and the connector body 124. In some embodiments, the lifting of the plurality of latches 310 increases the burst failure strength of the connector assembly 120. In particular, the retainer sleeve 128 and the plurality of latches 310 together provide sufficient strength for the connector assembly 120 to reduce the possibility of failure related to bursting.

[0150] In some embodiments, the environmental burst strength of the connector assembly 120 is 1800 pounds per square inch (psi) or greater. In some embodiments, the environmental burst strength is between 1000 psi and 2100 psi (inclusive). For example, the environmental burst strength can be between 1100 psi and 2100 psi (inclusive); between 1200 psi and 2100 psi (inclusive); between 1300 psi and 2100 psi (inclusive); between 1400 psi and 2100 psi (inclusive); between 1500 psi and 2100 psi (inclusive); between 1600 psi and 2100 psi (inclusive); between 1700 psi and 2100 psi (inclusive); and between 1800 psi and 2100 psi (inclusive), etc.

[0151] The expansion of end portion 326 also serves to facilitate centering of retainer sleeve 128 about connector body 124 during assembly. Expansion 327 may extend radially outwardly equally at all points circumferentially about end portion 326 so that retainer sleeve 128 is centered relative to interference portion 212. In some embodiments, after retainer sleeve 128 is coupled to connector body 124, a separate process is utilized to compress plurality of latches 310 into connector body 124. For example, retainer sleeve 128, and specifically plurality of latches 310 and end portion 326, may be joined to connector body 124 (e.g., forced into connector body 124, plastically deforming retainer sleeve 128, such as by rolling, knurling, individually pressing each of plurality of latches 310 into connector body 124, etc.). In some embodiments, an enhanced interference fit between connector body 124 and retainer sleeve 128 prevents rotation of retainer sleeve 128 relative to connector body 124 about longitudinal axis 122 when retainer sleeve 128 is coupled to connector body 124. Retainer sleeve 128 may be formed from stainless steel and is advantageously draw-formed in sequential drawing steps, wherein latch openings 314 and plurality of latches 310 are stamped into retainer sleeve 128 in a subsequent drawing stage.

[0152] Figure 20 to Figure 22, FIG. 23A to FIG. 23C and Figure 24 to Figure 26 The various connector assemblies shown in the drawings may have one or more components of the connector assembly 120 described above, and description of these components is not repeated, although certain component numbers are shown in the drawings. In particular, it will be understood that connector bodies 124a to 124g may be used in place of connector body 124, with the remainder of connector assembly 120 (i.e., retainer sleeve 128, sealing member 132, protective ring 136, grip ring 140, barrel 146, and disassembly body 154) being used to form a corresponding connector. Figure 20 to Figure 22 , FIG. 23A to FIG. 23C and Figure 24 to Figure 26 As shown, a plurality of connectors are used on each end of the connector bodies 124a to 124g to form a connector assembly. In configurations where the fluid passages extend through the connector bodies 124a to 124c, 124e to 124g, the tube stop may take the form of an internal shoulder on the connector bodies 124a to 124c, 124e to 124g that surrounds the flow passages and preferably forms an annular surface.

[0153] Overall reference Figures 27 to 33 , a method 500 of assembling a connector assembly 120 is shown according to an exemplary embodiment. At 502, a connector body, such as connector body 124, is obtained. The connector body is positioned along an axis, such as longitudinal axis 122. In some embodiments, the connector body includes a fluid passage (e.g., a flow path) extending at least partially therethrough. The connector body may also include an interference portion, such as interference portion 212. In some embodiments, obtaining the connector body includes forming the connector body. The connector body may be formed with an interference portion or may be formed without an interference portion. In some embodiments, the obtained connector body is formed according to Fig.14 and Fig.15 The connector body 124 is provided.

[0154] At 504, a retainer sleeve, such as retainer sleeve 128, is obtained. The retainer sleeve is configured to be received on at least a portion of the connector body and extends circumferentially around the axis. In some embodiments, the retainer sleeve is provided with a plurality of latches. The retainer sleeve is configured to be received on at least a portion of the connector body, and the retainer sleeve is configured to extend circumferentially around the fluid passage. In some embodiments, providing the retainer sleeve includes forming the retainer sleeve. In some embodiments, the retainer sleeve obtained is according to Fig.16 and Fig.17 The retainer sleeve 128 is provided.

[0155] At 506, the connector body is positioned on a fixture, such as fixture 530. Fig.28As shown, the connector body is positioned on the fixture such that the first end 200 of the connector body is positioned closer to the press 532 than the second end 202 of the connector body.

[0156] At 508, a plurality of components are positioned between the retainer sleeve and the connector body. In some embodiments, the sealing member 132, the protective ring 136, the gripping ring 140, the disassembly body 154, and the barrel 146 are positioned between the connector body 124 and the retainer sleeve 128. For example, Fig.28 As shown, the connector body can be positioned on the fixture 530, and the sealing member 132, the protective ring 136, the gripping ring 140, the disassembly body 154, and the barrel 146 are positioned on (e.g., positioned in) the connector body 124. More specifically, the disassembly body 154 and the gripping ring 140 are received between the barrel 146 and the protective ring 136 via the above-mentioned engagement member 477 and the circumferential recess 479 to form a subassembly. Separately, the sealing member 132 is placed into the connector body 124, and then the above-mentioned subassembly is inserted into the connector body 124 so that the second end 402 of the protective ring 136 enters the cylindrical recess of the connector body 124 until the protective shoulder 404 contacts the first end of the connector body 124. In this way, the sealing member 132 is positioned between the inner shoulder 242 of the connector body 124 and the second end 402 of the protective ring 136.

[0157] At 510, an interference portion, such as interference portion 212, is positioned circumferentially around an axis. In some embodiments, the interference portion is positioned circumferentially around a fluid passage. In some embodiments, the interference portion is coupled to a connector body. In some embodiments, the interference portion is formed into the connector body before or after obtaining the connector body.

[0158] At 512, the retainer sleeve is positioned over the inner component such that the inner component is interposed between the retainer sleeve and the connector body. Fig.29 , the retainer sleeve is shown positioned on the barrel 146.

[0159] At 514, a press 532 is used to press the retainer sleeve around the connector body and the connector body. Fig.30 As shown, the press 532 is moved downwardly in a direction toward the second end 202 of the connector body.

[0160] At 516, if Fig.31As shown, the retainer sleeve is moved (e.g., pressed) so that the interference portion is between the connector body and the retainer sleeve. In some embodiments, the retainer sleeve is pressed around the interference portion so that the interference portion engages a portion of the inner sleeve surface near the first sleeve end and causes the portion of the inner sleeve surface near the first sleeve end to deform and expand in diameter to a coupling diameter greater than the inner sleeve diameter. In some embodiments, the press 532 is operated to push (e.g., press) the retainer sleeve 128 onto the connector body 124.

[0161] In some embodiments, the retainer sleeve is pressed around both the connector body and the interference portion to form an interference fit between the retainer sleeve and the interference portion, thereby preventing the retainer sleeve from rotating about the axis relative to the connector body. In some embodiments, rotation about the fluid passage is prevented by the interference fit between the retainer sleeve and the connector body.

[0162] At 518, one of the plurality of latches is engaged with the retaining surface of the connector body. More specifically, the retainer sleeve 128 is pressed onto the connector body 124 until each of the plurality of latches 310 engages with the retaining surface 210 to lock (e.g., couple) the retainer sleeve 128 to the connector body 124 and form the connector assembly 120. At the same time, the end 326 of the retainer sleeve 128 is engaged with the interference portion 212 and forms an interference fit, thereby preventing the retainer sleeve 128 from rotating relative to the connector body 124. In some embodiments, for example, Fig.31 As shown, the interference portion is generally inserted between the retainer sleeve and the connector body at or about the same time as the plurality of latches engage the retaining surface of the connector body. In addition, the plurality of latches 310 are moved from the initial release position 313 to the locked position 315, for example, to enhance the engagement between the plurality of latches 310 and the retaining surface 210. While being retained by the retaining surface 210, the plurality of latches 310 extend in a direction transverse to the longitudinal axis 122. In addition, the end 326 of the retainer sleeve 128 engages the shoulder surface 216, so that the shoulder surface 216 causes the end 326 to expand to the second portion diameter 218. The expansion of the end 326 also causes the retainer sleeve 128 to be centered around the connector body 124 and around the interference portion 212.

[0163] At 520, the press 532 is disengaged from the connector assembly (eg, released). Fig.32 and Fig.33As shown, the press 532 is raised above and away from the completed connector assembly 120 so that the connector assembly 120 can be removed from the fixture 530. After the retainer sleeve 128 is coupled to the connector body 124, a portion of the second engagement surface 214 may be uncovered and exposed to air. In some embodiments, the retainer sleeve 128 covers and engages the entire second engagement surface 214 so that after the retainer sleeve 128 is coupled to the connector body 124, no portion of the second engagement surface 214 is visible.

[0164] Other additional processing steps may be included, and steps may be removed, without departing from the scope of the present disclosure, for example, multiple latches may be engaged (eg, pressed in) by a mechanical mechanism to further improve their engagement.

[0165] In another embodiment, it should be understood that, for example, the retainer sleeve 128, the protective ring 136, the grip ring 140, the barrel 146, and the disassembly body 154 form a subassembly during production. The subassembly can then be compressed onto the connector body 124 in which the sealing member 132 is positioned. During production of the connector assembly 120, according to an embodiment of the present disclosure, the latch member 311 may require the above-mentioned subassembly to be compressed to allow the latch member 311 to engage with the retaining surface 210. That is, one or more of the internal components of the subassembly can be compressed to a point that allows the latch member 311 to engage with the retaining surface 210. After the compressive force is released, for example at 520, one or more internal components of the subassembly exert tension on the retainer sleeve 128. The tension locks each of the plurality of latches 310 on the retaining surface 210, thereby substantially preventing the retainer sleeve 128 from rotating about the longitudinal axis 122. In this regard, the engagement of the plurality of latches 310 with the retaining surface 210 also helps to provide the force necessary to maintain the integrity of the connector assembly 120 as (high pressure) fluid passes through it.

[0166] The above description is given by way of example and not limitation. Given the above disclosure, those skilled in the art can modify within the scope and spirit of the present disclosure, including various ways of connecting the disassembly body 154 and the barrel 146. For example, an axial slot can be formed along the length of the disassembly body 154. The slot can be large enough so that the disassembly body 154 is compressed to be enough to fit through the proximal end of the barrel 146 and expand so that the protection shoulder 404 engages with the second internal shoulder 462 on the barrel 146 to connect those parts. Similarly, although each of a plurality of latches 310 is integrally formed with the retainer sleeve 128, and the clamping surface 210 is integrally formed with the connector body 124, the positions of these parts can be reversed and other configurations of the latch and the clamping portion can be used. In addition, the various features of the present disclosure can be used alone, or in different combinations from each other, and are not intended to be limited to the specific combination described herein. Therefore, the present disclosure is not limited by the illustrated embodiments.

[0167] refer to Fig.34 , depicts an exploded cross-sectional view of another embodiment of a connector assembly 600 according to the principles of the present disclosure. The connector assembly 600 includes an annular connector body 602, a retainer sleeve (e.g., a sleeve body) 604, a sealing member (e.g., a sealing ring) 606, a protective ring (protective body) 608, a gripping ring (e.g., a gripping body) 610, a barrel (e.g., a barrel body) 612, and a disassembly body (e.g., a disassembly ring) 614.

[0168] In some examples, it should be understood that the retainer sleeve 604, the protective ring 608, the grip ring 610, the barrel 612 and the disassembly body 614 form a subassembly during production. Then, the subassembly can be pressed into, accommodated in or coupled to the connector body 602, wherein the sealing member 606 is positioned in the connector body 602.

[0169] The connector body 602, sealing member 606, protective ring 608, grip ring 610, barrel 612, and disassembly body 614 of the connector assembly 600 are similar to the connector assembly 120 described above. Therefore, some descriptions of these parts will not be repeated. Similarly, it will be understood that the connector bodies 124a to 124g can be used to replace the connector body 602, and the remaining parts of the connector assembly 600 (i.e., the retainer sleeve 604, the sealing member 606, the protective ring 608, the grip ring 610, the barrel 612, and the disassembly body 614) are used to form a corresponding connector.

[0170] The connector assembly 600 extends along and is centered on the longitudinal axis 616. When the connector assembly 600 is fully assembled, as shown in FIG. Fig.35As shown, the sealing member 606, the protective ring 608, the gripping ring 610, the barrel 612, and the disassembly body 614 are all positioned (e.g., inserted) between the retainer sleeve 604 and the connector body 602. The retainer sleeve 604 and the connector body 602 are coupled together so that the remaining parts of the connector assembly 600 (the sealing member 606, the protective ring 608, the gripping ring 610, the barrel 612, and the disassembly body 614) are held in a facing relationship with each other (e.g., pressed, compressed, clamped together, etc.) without each component being individually coupled together, such as by potting, adhesives, fasteners, latches, etc.

[0171] The connector body 602 includes a substantially annular body having a first end 618 (e.g., distal end) and a second end 620 (e.g., proximal end) opposite the first end 618. The first end 620 is configured to receive a fluid conduit, such as a pipe or tubing. The second end 620 can be fluidly coupled to a pipe fitting having a plurality of connector assemblies. In the example shown, the connector body 602 has a central hole that allows a fluid passage to extend all the way through the connector body 602.

[0172] After the connector assembly 600 is assembled, the fluid conduit can then be inserted through the open end of the connector assembly 600. The fluid conduit is inserted through the retainer sleeve 604, through the disassembly body 614, and through the barrel 612 until the distal end of the fluid conduit passes through the grip ring 610, the protective ring 608, and the sealing member 606. In some embodiments, the fluid conduit contacts a hard stop that stops the relative axial movement of the fluid conduit along the longitudinal axis 616. The connector assembly 600 only needs to be placed on the end of the fluid conduit, and either or both of the connector assembly 600 and the fluid conduit are moved axially together to connect them, so that the sealing member 606 provides a fluid-tight connection, while the connector body 602 (or 124, 124a to 124g) allows the fluid conduit to be used for a variety of fluid connections.

[0173] Still refer to Fig.34 The connector body 602 also includes a first portion (e.g., flange) 622 extending radially away from the annular body proximate the first end 618. The first portion 622 extends circumferentially around the longitudinal axis 616. The first portion 622 includes a first engagement surface 624 and a retaining surface 626 similar to those described above.

[0174] In some examples, the connector body 602 may or may not be formed with an interference portion. For example, the connector body 602 may include an interference portion (or interference feature) 628 similar to the interference portion 212 of the connector assembly 120. During assembly of the connector assembly 600, the interference portion 628 may be interposed between the retainer sleeve 604 and the connector body 602. The interference portion 628 may include a second engagement surface 630.

[0175] The connector body 602 also includes a shoulder surface 632 that abuts the second engagement surface 630 and, similar to the shoulder surface 216 of the connector body 124, extends circumferentially about the longitudinal axis 616. The shoulder surface 632 defines a diverging or angled profile, including, for example, a conical or frusto-conical shape, that diverges to a larger diameter as the shoulder surface 632 extends from the first portion 622 to the interference portion 628.

[0176] A connector body groove 634 (e.g., a channel or other recessed area) is positioned between the first portion 622 and the interference portion 628 of the connector body 602. The connector body groove 634 includes a groove surface 636 that extends circumferentially around the longitudinal axis 616. In some examples, the groove surface 636 is generally concentric with and parallel to the longitudinal axis 616. In some embodiments, the shoulder surface 632 extends between the first portion 622 and the interference portion 628 such that the shoulder surface 632 is continuous with the retaining surface 626.

[0177] The protection ring 608 includes a first end 638 (e.g., a proximal end) and a second end 640 (e.g., a distal end) opposite the first end 638. The second end 640 is configured to fit within the first end 618 of the connector body 602 to constrain the sealing member 606 between the connector body 602 and the protection ring 608. The protection ring 608 includes a protrusion 644 that facilitates positioning the sealing member 606 in the fluid passage along the longitudinal axis 616. The protection ring 608 also includes an inclined surface 646 to generally align with the teeth 648 of the grip ring 610. The grip ring 610 is similar to the grip ring 140 described above and includes a flat radially extending base 650 and a plurality of teeth 648 surrounding the longitudinal axis 616.

[0178] The barrel 612 is similar to the barrel 146 described above and includes a second inner shoulder 654 extending radially inwardly from the first inner shoulder 652. The first inner shoulder 652 forms an axial alignment surface against which a stop flange 656 of the disassembly body 614 abuts to limit axial movement of the disassembly body 614 in one axial direction relative to the barrel 612. The tubular proximal end 658 of the disassembly body 614 is inserted from the distal end of the barrel 612 until the stop flange 656 contacts the second inner shoulder 654 on the barrel 612. The inclined distal end surface 660 of the disassembly body 614 is located proximal to the teeth 648, while the inclined surface 646 on the protective ring 608 is located distal to the teeth 648.

[0179] Figure now reference Figure 36 to Figure 39 , showing multiple views of a retainer sleeve 604 of a connector assembly 600. When retainer sleeve 604 is coupled to connector body 602, retainer sleeve 604 covers a portion of connector body 602. A portion of barrel 612 extends axially out of a proximal end of retainer sleeve 604, and a portion of removal body 614 extends axially out of the proximal ends of both retainer sleeve 604 and barrel 612.

[0180] The retainer sleeve 604 includes a generally annular body having a first end 662 (e.g., a proximal end) and a second end 664 (e.g., a distal end) opposite the first end 662. The first end 662 is configured to receive a fluid conduit, such as a copper tube. The second end 664 is configured to receive the connector body 602 and cover at least a portion of the connector body 602.

[0181] The retainer sleeve 604 also includes a sleeve opening 666 extending along the longitudinal axis 616. The sleeve opening 666 is sized to allow the proximal end 668 of the barrel 612 to pass therethrough. Advantageously, the fit between the sleeve opening 666 and the proximal end 668 of the barrel 612 is snug (e.g., a sliding fit) such that the retainer sleeve 604 radially supports the proximal end 668 of the barrel 612, which in turn supports the proximal end 658 of the disassembly body 614, which in turn further supports a fluid conduit passing through the disassembly body 614.

[0182] The first end 662 of the retainer sleeve 604 includes a circular reduced diameter portion proximate the first end 662, shown as a sleeve radius 670. As described above, the connector body 602 can vary depending on whether the connector body 602 is an in-line connector, an elbow connector, a T-connector, a Y-connector, a multi-tube connector, a blind end connector, or another type of connector.

[0183] The retainer sleeve 604 also includes a sleeve sidewall 672 (e.g., a body sidewall) having an inner sleeve surface 674 extending between the first end 662 and the second end 664. The retainer sleeve 604 also includes a plurality of latches 676 including at least one latch member 678. Each of the plurality of latches 676 extends radially inward from the inner sleeve surface 674 and toward the longitudinal axis 616. The latch member 678 may be a resiliently flexible protrusion in the form of a rectangular tab.

[0184] Latch opening 680 is positioned at the proximal end of each of the plurality of latches 676 and extends through sleeve sidewall 672. Latch member 678 can be resiliently urged in a direction toward longitudinal axis 616 and is configured to engage retaining surface 626 when retainer sleeve 604 is coupled to connector body 602.

[0185] The retainer sleeve 604 can be formed from stainless steel and is advantageously draw-formed in a continuous drawing step, wherein the latch openings 680 and the plurality of latches 676 are stamped into the retainer sleeve 604 in a subsequent drawing stage. In the example shown, four equally spaced latches are formed along the retainer sleeve 604; however, a different number and configuration of latches may be employed, such as two, three, five, or six latches equally or unequally spaced along the retainer sleeve 604, without departing from the scope of the present disclosure.

[0186] Fig.39 Each of the plurality of latches 676 is shown in a release position 682. In the release position 676, the plurality of latches 676 extend radially inward from the inner sleeve surface 674 at a first non-zero angle relative to the longitudinal axis 616. In some examples, the first non-zero angle can be greater than 15 degrees, such as between 15 degrees and 30 degrees, or between 30 degrees and 45 degrees, including the end values. In some examples, the first non-zero angle is a non-zero angle of five degrees or less. Therefore, each of the plurality of latches 676 extends laterally toward the longitudinal axis 616 so as to extend into the connector body groove 634 and engage with the retaining surface 626 to connect the retainer sleeve 604 to the connector body 602.

[0187] Go to Figure 40 to Figure 41, depicting a perspective view of the connector assembly 600. Each of the plurality of latches 676 can be cut into the sleeve sidewall 672 such that each of the plurality of latches 676 is integrally formed with the retainer sleeve 604. A latch opening 680 in the sleeve sidewall 672 defines a latch end 684 (e.g., a free end, a proximal end, etc.) of a latch member 678. Two parallel cutouts 686 substantially parallel to the longitudinal axis 616 extend into the sleeve sidewall 672 and toward the latch opening 680 to define the remaining two sides of the generally rectangular plate forming the latch member 678. After at least one of the plurality of latches 676 is formed with the retainer sleeve 604, the at least one latch member 678 can be bent radially inward toward the longitudinal axis 616.

[0188] The parallel cuts 686 provide lanced edges 690 in the retainer sleeve 604. FIG. 48A to FIG. 48C The punching operation of the punching or die tool 694 shown can be used to produce the cutout 686. In the punching operation, multiple latches 676, each including at least one latch member 678, can be punched out simultaneously in the retainer sleeve 604. In some examples, each of the multiple latches 676 in the retainer sleeve 604 can be punched out separately. In this way, the retainer sleeve 604 can be rotated 90 degrees between each punch so as to manufacture multiple latches 676 in four separate steps. In some examples, two of the multiple latches 676 can be punched out simultaneously in a manner of 180 degrees apart. In some embodiments, although different positioning mechanisms can be used, the punching operation can utilize the latch opening 680 of the multiple latches 676 as a locator or alignment function to produce the desired stamping. In some examples, the latch opening 680 and at least one latch member 678 can be punched out simultaneously.

[0189] In an embodiment, the operating stamping tool 694 may include a die or mold 695 configured to facilitate forming (e.g., in a stamping manner) the latches 676 in the retainer sleeve 604. The die 695 may have a radiused portion or a protrusion that is sized, shaped, or otherwise designed to form a corresponding protrusion 696 (e.g., including a ridge, undulation, radiused portion, or other one or more protrusions) with a specified radius or curvature in the latch member 678 when the plurality of latches 676 are stamped in the retainer sleeve 604. In some examples, the retainer sleeve 604 may be mounted on the die 695 so as to be stamped or punched by a punch 697 or other movable engagement member of the stamping tool 694. The punch 697 is moved via an actuator, such as a spring-operated plunger 699 or other actuator, but alternatives are possible. The size, shape, or other design of the punch 697 may facilitate forming the latches 676, and may include, for example, a surface with grooves, protrusions, or both, to facilitate forming the protrusions 696 in each latch 676. In the illustrated embodiment, the punch 697 moves up and down, but the punch may also move horizontally without departing from the scope of the present disclosure. Fig.48A The punch 697 is shown in an initial position prior to punching / die punching, and Fig.48BThe punch 697 is shown in an engaged position to punch / die the retainer sleeve 604 mounted on the die 695. When this occurs, the radiused portion of the die 695 of the punch tool 694 can be designed to displace a portion of the material in each latch member 678 to form a protrusion 696 in the latch member 678. In an embodiment, two or more latches 676 with corresponding protrusions 696 can be formed simultaneously by the punch tool, but without departing from the scope of the present disclosure, the latches 676 can be formed one at a time. It is understood that the protrusions 696 can be formed by other methods, such as casting, molding, etc. The formation of the projection 696 allows the total length or total arc length of the main surface 671 of the latch member 678 to remain constant when measured from one side or edge 673 of the latch member 678 to another side or edge 675 of the latch member 678, while the total axial distance between the corresponding sides or edges 673, 675 of the latch member 678 is reduced to provide or otherwise define a gap, gap or space between the sides 673, 675 of the latch member and the sides or edges 673, 675 of the latch opening 680. The projection 696 can extend above the main surface 671 of the latch member 678. In an additional or alternative embodiment, a portion of the projection 696 can extend below the main surface 671 of the latch member. The projection 696 is represented by a borderline to show the approximate radius of the projection. It is understood that the approximate size of the projection can vary. In an embodiment, the radius of the projection is less than 15 mm, such as 5.5 mm. In one embodiment, the radius of the projection is between 2 mm and 15 mm. In one embodiment, the radius of the protrusion is between 3mm and 15mm. In one embodiment, the radius of the protrusion is between 4mm and 15mm. In one embodiment, the radius of the protrusion is between 5mm and 15mm. In one embodiment, the radius of the protrusion is between 6mm and 15mm. In one embodiment, the radius of the protrusion is between 7mm and 15mm. In one embodiment, the radius of the protrusion is between 8mm and 15mm. In one embodiment, the radius of the protrusion is between 9mm and 15mm. In one embodiment, the radius of the protrusion is between 10mm and 15mm. In one embodiment, the radius of the protrusion is between 11mm and 15mm. In one embodiment, the radius of the protrusion is between 12mm and 15mm. In one embodiment, the radius of the protrusion is between 13mm and 15mm. In one embodiment, the radius of the protrusion is between 14mm and 15mm. In one embodiment, the radius of the protrusion is between 2mm and 14mm. In one embodiment, the radius of the protrusion is between 2mm and 13mm. In one embodiment, the radius of the protrusion is between 2mm and 12mm. In one embodiment, the radius of the protrusion is between 2mm and 11mm. In one embodiment, the radius of the protrusion is between 2 mm and 10 mm. In one embodiment, the radius of the protrusion is between 2 mm and 9 mm.In one embodiment, the radius of the protrusion is between 2 mm and 8 mm. In one embodiment, the radius of the protrusion is between 2 mm and 7 mm. In one embodiment, the radius of the protrusion is between 2 mm and 6 mm. In one embodiment, the radius of the protrusion is between 2 mm and 5 mm. In one embodiment, the radius of the protrusion is between 2 mm and 4 mm. In one embodiment, the radius of the protrusion is between 2 mm and 3 mm.

[0190] Forming the protrusion 696 in the latch member 678 also helps to narrow or reduce the width of the plurality of latches 676. In this regard, a gap 688 (e.g., a slit or space) is provided on opposite sides of the latch member 678 at the slit edge 690. In one embodiment, the size or dimension of the gap 688 is between 0.05 mm and 0.5 mm. In one embodiment, the size or dimension of the gap 688 is less than 0.1 mm. The presence of the gap 688 reduces or helps to prevent engagement between the sides of the latch member 678 and the slit edge 690 in the retainer sleeve 604. The engagement or friction between the sides of the latch member 678 can limit or reduce the movement of the latch member 678. That is, the gap 688 is designed to reduce the frictional interference of the latch member 678 with the slit edge 690 formed in the retainer sleeve 604 when the latch member 678 moves relative to the longitudinal axis 616. Thus, the latch member 678 can be in a released (eg, initial, first, resting, unlocked, etc.) position 682 and a locked position 698 (see Fig.41 ) and the interference or frictional contact with the sleeve sidewall 672 is reduced. The gap 688 reduces the frictional contact so that once the retainer sleeve 604 is attached to the connector body 602, the latch member 678 is not prevented from returning to its fully released position 682. In one embodiment, the width of the gap 688 is between 0.05mm and 0.5mm. In one embodiment, the width of the gap 688 is less than 0.5mm. In one embodiment, the width of the gap 688 is less than 0.4mm. In one embodiment, the width of the gap 688 is less than 0.3mm. In one embodiment, the width of the gap 688 is less than 0.2mm. In one embodiment, the width of the gap 688 is less than 0.1mm. In one embodiment, the width of the gap 688 is less than 0.09mm. In one embodiment, the width of the gap 688 is less than 0.08mm. In one embodiment, the width of the gap 688 is less than 0.07mm. In one embodiment, the width of the gap 688 is less than 0.06mm. In one embodiment, the width of the gap 688 is less than 0.05mm.

[0191] The gap 688 formed by the protrusion 696 in the latch member 678 helps increase the freedom of movement of the plurality of latches 676 for improved engagement with the connector body 602. The latch members 678 of the plurality of latches 676 are free to bias inwardly toward the connector body 602 without interference to improve engagement between the plurality of latches 676 and the retaining surface 626 of the connector body 602. That is, the gap 688 helps improve the latching engagement of the latch members 678 with the connector body 602 because the latch members 606 are able to freely move closer to the release position 682 when engaged with the connector body 602. Therefore, the latch members 678 of the plurality of latches 676 will have a high probability of adequate engagement with the retaining surface 626 of the connector body 602, which improves engagement with the retaining surface and the connection between the retainer sleeve 604 and the connector body 602. Due to the improved latch engagement during assembly of the connector assembly 600, a secondary operation of pushing or urging the latch members 678 of the plurality of latches 676 into position or inwardly to engage the retaining surface 626 of the connector body 602 can be avoided, but such an operation may still be employed without departing from the scope of the present disclosure.

[0192] Go to Fig.50 , another exemplary retainer sleeve 604a is shown as an alternative embodiment of providing a gap 688a between the slit edges 690a. In this example, the gap 688a is achieved by forming an angled relief 677 on the sides 673, 675 of the latch member 678a. That is, the sides 673, 675 of the latch member 678a can each taper inwardly from the fixed end 679 of the latch member 678a toward the free end 681 of the latch member 678a to form the angled relief 677. The gap 688a or angled cutout defined in the retainer sleeve 604a allows the latch member 678a to move without rubbing or engaging with the slit edges 690a in the retainer sleeve 604a. In this way, frictional interference of the latch member 678a with the slit edge 690a formed in the retainer sleeve 604a can be reduced when the latch member 678a moves relative to the longitudinal axis 616. In one embodiment, the angled release 677 is less than 0.5 degrees, such as between 0.3 and 0.5 degrees, although alternatives are possible, such as less than 0.6 degrees, less than 0.7 degrees, less than 0.8 degrees, less than 1.0 degrees.

[0193] The retainer sleeve 604 also includes a region or end portion 700 proximate the second end 664 (see Fig.37). The end 700 extends between the second end 664 and the base of the plurality of latches 676. When the retainer sleeve 604 is coupled to the connector body 602, the end 700 engages the second engagement surface 630 of the interference portion 628. As a result, the end 700 of the retainer sleeve 604 undergoes at least one of plasticity or elasticity. When the retainer sleeve 604 is pressed onto the connector body 602, the second end 664 of the retainer sleeve 604 engages the shoulder surface 632, which facilitates the expansion of the end 700 to the extent of mating with the interference portion 628 of the connector body 602. In some examples, the end 700 expands so that an interference fit is formed between the retainer sleeve 604 and the connector body 602.

[0194] Figure now reference Figure 42 to Figure 44 , showing the retainer sleeve 604 before and after being coupled to the connector body 602. Fig.42 , multiple latches 676 are in a released (e.g., initial, first, stationary, unlocked, etc.) position 682. Fig.45 6 is an enlarged view of one latch 676 in a released position 682. In the released position 682, the plurality of latches 676 can extend at a first non-zero angle relative to the longitudinal axis 616. When the retainer sleeve 604 is coupled to the connector body 602, the sleeve sidewall 672 of the retainer sleeve 604 allows the end 700 to expand radially outward to form the expanded portion 702. The expansion of the end 700 also serves to facilitate centering of the retainer sleeve 604 around the connector body 602 during assembly. The expanded portion 702 can extend radially outward equally at all points circumferentially around the end 700 so that the retainer sleeve 604 is centered relative to the interference portion 628.

[0195] Figure now reference Fig.43, the retainer sleeve 604 is shown partially mounted to the connector body 602 with the plurality of latches 676 in an intermediate position. As the retainer sleeve 604 slides over the connector body 602, the plurality of latches 676 can be biased outwardly to be more aligned with the sleeve sidewall 672, thereby straddling the first engagement surface 624. Once the plurality of latches 676 move past the first engagement surface 624, as the retainer sleeve 604 is attached to the connector body 602, the plurality of latches 676 can move into the connector body recess 634 to engage with the retaining surface 626. The first end 618 of the connector body 602 is slightly chamfered so that as the retainer sleeve 604 and the connector body 602 move relative to each other, the first end 618 can resiliently push the resilient latches 676 outwardly until the latches 676 engage with the retaining surface 626. An angled outer shoulder surface 632 adjacent to the retaining surface 626 may optionally be provided with a shoulder surface 632 that angles inwardly and toward the first end 618 to align with the latch 676. The shoulder surface 632 may help facilitate alignment of the retainer sleeve 604 and may help strengthen the latch-retaining connection (e.g., the connection between the latch 676 and the retaining surface 626) to better resist separation of the retainer sleeve 604 from the connector body 602 along the longitudinal axis 616.

[0196] Figure now reference Fig.43, the retainer sleeve 604 is shown coupled to the connector body 602, wherein the plurality of latches 676 are shown in a locked (e.g., second, engaged, lifted, etc.) position 698. When the end 700 of the retainer sleeve 604 engages the interference portion 628 of the connector body 602, each of the plurality of latches 676 is transferred from the release position 682 to the locked position 698. When the retainer sleeve 604 is coupled to the connector body 602, the interference portion 628 engages the end 700 and causes the second end 664 of the retainer sleeve 604 to lift or expand outwardly relative to the connector body 602. The lifting or expansion of the end 700 causes the plurality of latches 676 to bend or deform to facilitate engagement with the retaining surface 626 (or the groove surface 636). The lifting of the plurality of latches 676 can increase the engagement (e.g., engagement, engagement force, etc.) between the plurality of latches 676 and the connector body 602. In the locked position 698, the gap 688 formed by the protrusion 696 in the latch member 678 allows the plurality of latches 676 to return to their initial release position 682 to improve, enhance, etc. the engagement between the plurality of latches 676 and the connector body 602. Because the gap 688 reduces frictional contact, the latch member 678 is not prevented from returning to its fully released position 682 once the retainer sleeve 604 is attached to the connector body 602. That is, once engaged with the retaining surface 626 in the locked position 698, the latch members 678 of the plurality of latches 676 can return to their initial release position 682 because the latch members 606 are free to move. In this way, the latch members 678 of the plurality of latches 676 are free to bias inwardly toward the connector body 602 without interference to improve the engagement between the plurality of latches 676 and the retaining surface 626 of the connector body 602.

[0197] The retainer sleeve 604 and the plurality of latches 676 together provide sufficient strength to the connector assembly 600 to reduce the likelihood of burst-related failures. When the plurality of latches 676 are in the locked position 698, the environmental burst strength is increased (e.g., at least in part due to the enhanced engagement of the plurality of latches 676), and the failure point may be a failure between the fluid conduit and the teeth 648, rather than the engagement of the retainer sleeve 604 with the connector body 602. The enhanced latch engagement further contributes to an increase in the pressure rating of the connector assembly 600. In some examples, the pressure rating of the connector assembly 600 can be increased from about 200 psi to about 250 psi.

[0198] In other examples, retainer sleeve 604 can be more permanently attached to connector body 602. For example, retainer sleeve 604 can be attached to connector body 602 via ultrasonic welding, threaded attachment, adhesive, etc. to enhance engagement with connector body 602 and potentially further improve or increase pressure rating, burst strength, durability, etc.

[0199] The above description is given by way of example and is not intended to be limiting. Based on the above disclosure, those skilled in the art can make modifications within the scope and spirit of the present disclosure. Although each of the plurality of latches 676 is integrally formed with the retainer sleeve 604, and the holding surface 626 is integrally formed with the connector body 602, the positions of these components can be reversed, and other configurations of latches and catches can be used. In addition, the various features of the present disclosure can be used alone, or in different combinations from each other, and are not intended to be limited to the specific combinations described herein. Therefore, the present disclosure is not limited by the illustrated embodiments.

[0200] Another aspect of the present invention relates to a method for forming a retainer sleeve. The method may include a first step of providing a retainer sleeve (such as retainer sleeve 604). In some examples, providing a retainer sleeve includes forming a retainer sleeve. A second step may include forming at least one latch opening 680 in retainer sleeve 604. The latch opening may be an elongated hole formed by a stamping process or a die process. It is understood that the latch opening may be a variety of shapes, such as a rectangle, a circle, an ellipse, etc. A third step may include forming a plurality of latches 676 in retainer sleeve 604. Latch 676 may be formed using a stamping process or a die process, although other schemes are feasible.

[0201] The stamping tool may have a profile or shape that forms a protrusion on the latch member 678 of the plurality of latches 676 when the latch is stamped / die-formed. In some examples, two latches 676 may be formed simultaneously at 180 degrees apart. In other examples, each latch 676 may be formed separately at 90 degrees apart.

[0202] Another aspect of the present disclosure relates to assembling a connector assembly 600 according to the principles of the present disclosure. The connector assembly 600 can be manufactured or assembled together in various stations. For example, the assembly of the connector assembly 600 can include the following steps: 1) loading the various components of the connector according to the desired stage orientation, 2) transferring the fittings to blow and vacuum up and down (i.e., cleaning), 3) pre-greasing the fitting parts, 4) optionally inserting the pipe liner, 5) inserting the O-ring, 6) inspecting the fitting via a camera (i.e., quality inspection), 7) inserting the barrel assembly (i.e., removal ring, barrel ring, protection ring, grip ring), 8) installing the stainless steel retainer sleeve, and 9) laser inspection and / or laser engraving (i.e., logo and approval code and standard marking).

[0203] The various connector assemblies described above can be used with valves according to the principles of the present disclosure. For example, Fig.46An exemplary ball valve 800 is shown, which defines a fluid passage 802 extending from a first end 804 to a second end 806. The first end 804 and the second end 806 of the fluid passage 802 can be aligned along an axis 808. The ball valve 800 includes a connector assembly 810 mounted on both the first end 804 and the second end 806. The connector assembly 810 is similar to the connector assembly 600 described above. The connector assembly 810 is coaxial with the axis 808. The ball valve 800 can include a handle 812 that is operable to control fluid communication between the first end 804 and the second end 806 of the fluid passage 802. The handle 812 selectively moves the ball valve 800 between an open position and a closed position.

[0204] Fig.47 An exemplary shut-off valve 900 including a connector assembly 902 is shown. The connector assembly 902 is similar to the connector assembly 600 described above. The shut-off valve 900 defines a fluid passage 904 extending from a first end 906 to a second end 908. The first end 906 of the fluid passage 904 can be aligned along a first axis 910, and the second end 908 of the fluid passage 904 can be aligned along a second axis 912. The first axis 910 and the second axis 912 can be angled relative to each other. The shut-off valve 900 includes a handle 914 located outside the shut-off valve 900, and the handle 914 is operably coupled to open or close fluid communication between the first end 906 and the second end 908 of the fluid passage 904. The connector assembly 902 can be mounted at the first end 906 of the fluid passage 904 to allow a conduit (not shown) to be coupled to the shut-off valve 900. The connector assembly 902 can be coaxial with the first axis 910.

[0205] FIG. 49A to FIG. 49B An exemplary flexible hose having at least one connector assembly attached thereto in accordance with the principles of the present disclosure is shown. Fig.49A An exemplary flexible hose 1000 is shown having connector assemblies 1002 mounted at opposite ends thereof. The flexible hose 1000 may include an inner resilient conduit, such as a conduit made of rubber or other elastomeric or polymeric material, and an outer shell portion, such as a corrugated metal outer shell portion, although alternatives are possible. According to embodiments of the present disclosure, at least one of the connector assemblies 1002 may include a push-on connector assembly 120, 600, 810, 902. Fig.49A It means that both connector assemblies include such a push-on connector assembly. Fig.49BAnother exemplary flexible hose 1004 is shown, wherein a push-on connector assembly 1002 is mounted at one end of the flexible hose 1004, and a different type of connector 1006 is mounted at the opposite end of the flexible hose 1004. In some examples, the connector assembly 1006 can be a threaded connector. Although an internal threaded connector is shown, an external threaded connector can also be used. It is understood that any suitable connector, such as a barb connector, an expansion connector, etc., can be used. The connector assembly 1006 can also include a rotary connector assembly, such as those described in International Patent Application No. PCT / CN2021 / 082998 and U.S. Patent Publication No. 2020 / 0378536. The disclosure and drawings of International Patent Application No. PCT / CN2021 / 082998 and U.S. Patent Publication No. 2020 / 0378536 are incorporated herein by reference in their entirety.

[0206] In this specification, adjectives such as left and right, top and bottom, first and second can be used to distinguish one element or action from another element or action, without necessarily requiring or implying any actual such relationship or order. In addition or alternatively, the reference to the position of the element (e.g., top, bottom, above, below) herein can be used only to describe the orientation of the various elements in the figure. It should be noted that the orientation of the various elements can be different according to various exemplary embodiments, and such changes are intended to be covered by the present disclosure. Where the context permits, reference to parts, integers or steps (or the like) should not be interpreted as being limited to only one of the parts, integers or steps, but can be one or more of the parts, integers or steps.

[0207] As used herein with respect to structural features (e.g., describing shape, size, orientation, direction, relative position, etc.), the terms "approximately," "about," "substantially," and similar terms are intended to encompass minor variations in structure that may result from, for example, manufacturing or assembly processes, and are intended to have a broad meaning consistent with common and recognized usage by those of ordinary skill in the art to which the subject matter of the present disclosure belongs. Accordingly, these terms should be interpreted as indicating that insubstantial or insignificant modifications or alterations of the described and claimed subject matter are considered to be within the scope of the disclosure as recited in the appended claims.

[0208] It should be noted that the term "exemplary" and variations thereof as used herein to describe various embodiments are intended to indicate that such embodiments are possible examples, representations, or illustrations of possible embodiments (and such terms are not intended to mean that such embodiments are necessarily the particular or best examples).

[0209] As used herein, the term "coupled" and variations thereof mean that two members are directly or indirectly connected to each other. Such connection can be static (e.g., permanent or fixed) or movable (e.g., removable or releasable). Such connection can be achieved in the following ways: two members are directly connected to each other, two members are connected to each other using a separate intermediate member and any additional intermediate member that are connected to each other, or two members are connected to each other using an intermediate member that is integrally formed as a single entity with one of the two members. If "coupled" or its variations are modified by additional terms (e.g., directly connected), the general definition of "coupled" provided above is modified by the ordinary language meaning of the additional terms (e.g., "directly connected" means the connection of two members without any separate intermediate member), resulting in a narrower definition than the general definition of "coupled" provided above. Such connection can be mechanical, electrical or fluid.

[0210] Although the drawings and description may show a specific order of method steps, unless otherwise specified above, the order of these steps may be different from that depicted and described. In addition, unless otherwise specified above, two or more steps may be performed simultaneously or partially simultaneously.

[0211] In at least one aspect, a push-on fitting includes a connector body having a fluid passage extending at least partially therethrough; a sealing member configured to form a sealing engagement with a fluid conduit; a gripping ring including a plurality of teeth configured to be coupled to the fluid conduit; a barrel positioned adjacent to at least a portion of the gripping ring and having a hollow portion extending through the barrel, the gripping ring being interposed between the barrel and the sealing member; a retainer sleeve received at least a portion of the barrel and at least a portion of the connector body; a plurality of latches located on the retainer sleeve, the plurality of latches being configured to secure the retainer sleeve to the connector body so as to retain the sealing member, the gripping ring, and the barrel; and an interference portion interposed between the connector body and the retainer sleeve, the interference portion being configured to engage with the retainer sleeve to substantially prevent the retainer sleeve from rotating relative to the connector body.

[0212] In at least one aspect, the push-on fitting further includes a removal body movable within the hollow portion of the barrel and configured to engage the plurality of teeth of the grip ring to facilitate decoupling of the plurality of teeth from the fluid conduit.

[0213] In at least one aspect, the push-on fitting further includes a protection ring positioned within the connector body and between the sealing member and the grip ring, the protection ring including an inclined surface that tapers to a smaller diameter as the inclined surface extends away from the grip ring.

[0214] In at least one aspect, the retainer sleeve includes an inner sleeve surface having a first diameter; and the interference portion includes one or more protrusions having a second diameter greater than the first diameter such that an interference fit exists between the interference portion and the retainer sleeve.

[0215] In at least one aspect, the retainer sleeve includes a compliant material such that when an end of the retainer sleeve engaged by the interference portion engages the interference portion, the end expands to a third diameter, the third diameter being greater than the second diameter.

[0216] In at least one aspect, in the push-on fitting, the interference portion is formed as an annular member having a diameter greater than that of the connector body, is integrally formed with the connector body, and radially extends from the connector body in a direction away from the fluid passage.

[0217] In at least one aspect, the push-on fitting further includes a retaining surface located on the connector body, wherein the plurality of latches are configured to engage the retaining surface to facilitate coupling of the retainer sleeve to the connector body.

[0218] In at least one aspect, each of the plurality of latches is configured to rotate about a sidewall to which the latch is coupled and engage the retaining surface when the retainer sleeve engages the interference portion.

[0219] In at least one aspect, each of the plurality of latches includes a ridge having a radius of curvature that narrows a width of the latch and provides a gap on opposing sides of the latch.

[0220] In at least one aspect, the plurality of latches are configured to move in a direction away from or toward the retaining surface to engage the retaining surface.

[0221] In at least one aspect, the plurality of latches include one or more projections extending laterally from a side wall to which the latches are connected.

[0222] In at least one aspect, engagement of the plurality of latches with the retaining surface inhibits rotation of the retainer sleeve relative to the connector body.

[0223] In at least one aspect, each of the plurality of latches includes a released position and a locked position, and each of the plurality of latches is in the locked position when the retainer sleeve is engaged by the interference portion.

[0224] In at least one aspect, the interference portion further includes a shoulder surface having a frustoconical profile, the shoulder surface configured to engage an end of the retainer sleeve when the retainer sleeve is received on the interference portion.

[0225] In at least one aspect, the shoulder surface facilitates alignment of the retainer sleeve.

[0226] In at least one aspect, the retainer sleeve includes a first retainer sleeve; and the connector body also includes: a first connector end, the first connector end is connected to the first retainer sleeve; a second connector end, the second connector end is connected to the second retainer sleeve; and the first connector end and the second connector end are fluidically connected to each other via a fluid channel.

[0227] In at least one aspect, the pipe fitting includes a first connector assembly, which includes: a first connector body, which is centered along a first axis and configured to receive a first fluid conduit end; a first retainer sleeve, which is connected to the first connector body and configured to receive the first fluid conduit end; and a first interference portion, which is between the first connector body and the first retainer sleeve, and the first interference portion is configured to prevent the first retainer sleeve from rotating relative to the first connector body around the first axis; a second connector assembly, which includes: a second connector body, which is centered along a second axis and configured to receive a second fluid conduit end, and the second connector body is fluidly connected to the first connector body; a second retainer sleeve, which is connected to the second connector body and configured to receive the second fluid conduit end; and a second interference portion, which is between the second connector body and the second retainer sleeve, and the second interference portion is configured to prevent the second retainer sleeve from rotating relative to the second connector body around the second axis; and a fluid channel, which extends between the first connector assembly and the second connector assembly.

[0228] In at least one aspect, in a pipe fitting, the first retainer sleeve includes a first inner sleeve surface having a first diameter; and the first interference portion has a second diameter greater than the first diameter such that an interference fit exists between the first interference portion and the first retainer sleeve.

[0229] In at least one aspect, in the pipe fitting, the first interference portion is integrally formed with the first connector body, the first interference portion radially extending from the first connector body in a direction away from the first axis.

[0230] In at least one aspect, in the pipe fitting, the first retainer sleeve further comprises a compliant material such that when the end of the first retainer sleeve engaged by the first interference portion engages the first interference portion, the end expands to a third diameter, the third diameter being greater than the second diameter.

[0231] In at least one aspect, the pipe fitting further includes a retaining surface on the first connector body and a plurality of latches on the first retaining sleeve and configured to engage the retaining surface to facilitate coupling the first retainer sleeve to the first connector body.

[0232] In at least one aspect, in a plumbing fitting, each of the plurality of latches is configured to rotate about a side wall to which the latch is connected and engage with a retaining surface when the first interference portion engages with the retainer sleeve.

[0233] In at least one aspect, in a plumbing fitting, each of the plurality of latches includes a released position and a locked position, and each of the plurality of latches is in the locked position when the first retainer sleeve is engaged by the first interference portion.

[0234] In at least one aspect, a connector assembly includes a connector body having a fluid passage extending at least partially therethrough, the connector body including: a first end and a second end opposite the first end; a first connector flange extending radially from the connector body between the first end and the second end and having a first diameter; and a second connector flange extending radially from the connector body between the first connector flange and the second end, the second connector flange having a second diameter greater than the first diameter; and a retainer sleeve configured to be coupled to the connector body and configured to extend around the fluid passage, retaining The retainer sleeve includes: a first sleeve end and a second sleeve end opposite to the first sleeve end; an inner sleeve surface having a third diameter, the third diameter being smaller than the second diameter; and a plurality of latches, the plurality of latches being positioned circumferentially around the inner sleeve surface and extending radially inward relative to the inner sleeve surface; wherein the retainer sleeve is configured such that when the retainer sleeve is connected to the connector body and the second connector flange engages with a portion of the inner sleeve surface near the first sleeve end: the portion of the inner sleeve surface near the first sleeve end expands to a fourth diameter greater than the second diameter in response to deformation of the retainer sleeve, and when the first sleeve end expands to the fourth diameter, the plurality of latches rotate inward toward the connector body.

[0235] In at least one aspect, in the connector assembly, the connector body further comprises a retaining surface positioned on the first connector flange and extending circumferentially around the fluid passage; and the plurality of latches are configured to engage the retaining surface when the retainer sleeve is coupled to the connector body.

[0236] In at least one aspect, in the connector assembly, the connector body further includes a shoulder surface positioned between the first connector flange and the second connector flange, the shoulder surface flaring outwardly toward the second connector flange to facilitate centering of the retainer sleeve about the connector body.

[0237] In at least one aspect, in the connector assembly, the third diameter is smaller than the second diameter by about 0.01 mm to about 0.15 mm, inclusive, such that an interference fit is formed between the retainer sleeve and the connector body.

[0238] In at least one aspect, in the connector assembly, the third diameter is between about 0.2 mm and about 0.5 mm, inclusive, smaller than the second diameter such that an interference fit is formed between the retainer sleeve and the connector body.

[0239] In at least one aspect, in the connector assembly, the retainer sleeve is a first retainer sleeve; and the connector body also includes: a first connector end, which is connected to the first retainer sleeve; a second connector end, which is connected to the second retainer sleeve, and the second retainer sleeve is substantially similar to the first retainer sleeve; and the first connector end and the second connector end are fluidically connected to each other via a fluid channel.

[0240] In at least one aspect, a method for manufacturing a connector assembly is provided, the method comprising: obtaining a connector body positioned along an axis; obtaining a retainer sleeve, the retainer sleeve being configured to be received on at least a portion of the connector body and extending around the axis, the retainer sleeve comprising: a first sleeve end and a second sleeve end opposite to the first sleeve end; and an inner sleeve surface having an inner sleeve diameter; positioning an interference portion circumferentially around the connector body, the interference portion being an annular body having a retaining diameter greater than the inner sleeve diameter; positioning a plurality of internal components; and pressing the retainer sleeve around the connector body and the interference portion so that the interference portion is interposed between the retainer sleeve and the connector body, and so that the interference portion engages with a portion of the inner sleeve surface near the second sleeve end, and in response to deformation of the retainer sleeve, the diameter of the portion of the inner sleeve surface near the second sleeve end expands to a connection diameter greater than the inner sleeve diameter.

[0241] In at least one aspect, pressing the retainer sleeve about the connector body and the interference portion forms an interference fit between the retainer sleeve and the interference portion, thereby preventing the retainer sleeve from rotating about the axis relative to the connector body.

[0242] In at least one aspect, the connector body further includes a retaining surface; the retainer sleeve further includes a plurality of latches configured to engage with the retaining surface when the retainer sleeve is coupled to the connector body, and the method further includes pressing the retainer sleeve around the connector body and the interference portion so that the plurality of latches engage with the retaining surface.

[0243] In at least one aspect, the connector body further includes a shoulder surface defining a frustoconical profile that expands outwardly toward the interference portion, and the method further includes: pressing the retainer sleeve around the connector body and the interference portion so that the inner sleeve surface engages the shoulder surface, the shoulder surface (i) causing the second sleeve end to expand to the coupling diameter and (ii) facilitating centering of the retainer sleeve around the connector body and the interference portion.

[0244] In at least one aspect, a push-on fitting includes a connector body having a fluid passage extending at least partially therethrough; a sealing member configured to form a sealing engagement with a fluid conduit; a gripping ring including a plurality of teeth configured to couple to the fluid conduit; a barrel positioned adjacent to at least a portion of the gripping ring and having a hollow portion extending through the barrel, the gripping ring being interposed between the barrel and the sealing member; a retainer sleeve received on at least a portion of the barrel and on at least a portion of the connector body; and a plurality of latches located on the retainer sleeve, the plurality of latches each including a protrusion having a specified radius or curvature, the plurality of latches being configured to secure the retainer sleeve to the connector body so as to retain the sealing member, the gripping ring, and the barrel.

[0245] In at least one aspect, each of the plurality of latches in the retainer sleeve can be formed by a stamping or die operation that creates a slit edge in the retainer sleeve.

[0246] In at least one aspect, the plurality of latches are separately punched in such a manner that the retainer sleeve is rotated 90 degrees between each punch to produce the plurality of latches in four steps.

[0247] In at least one aspect, two of the plurality of latches can be stamped simultaneously into the retainer sleeve 180 degrees apart.

[0248] In at least one aspect, the formation of protrusions on the plurality of latches helps to narrow or reduce the width of the plurality of latches to provide a gap at opposite sides of the plurality of latches adjacent to the slit edge.

[0249] In at least one aspect, the presence of the gap reduces or helps prevent frictional interference or engagement between opposing sides of the plurality of latches and the edges of the slits in the retainer sleeve.

[0250] In at least one aspect, the plurality of latches each include at least one latch member having a protrusion formed thereon.

[0251] In at least one aspect, a punching tool of a punching operation can be provided with a protrusion or radiused portion designed to form a protrusion in the latch member when a plurality of latches are punched into the retainer sleeve.

[0252] In at least one aspect, the radiused portion of the punch tool is designed to displace a portion of material in each of the latch members to form the protrusion.

[0253] In at least one aspect, the latch member can be moved between a release (eg, initial, first, rest, unlocked, etc.) position and a locked position in a manner that reduces interference or frictional contact with a sleeve sidewall of the retainer sleeve.

[0254] In at least one aspect, the gap reduces frictional contact so that once the retainer sleeve is attached to the connector body, the latch member is not prevented from returning to its fully released position.

[0255] In at least one aspect, in the locked position, the protrusions in the latch member allow the plurality of latches to return to their initial release positions once engaged with the retaining surface of the connector body, so that the engagement between the plurality of latches and the connector body is improved, enhanced, etc.

[0256] In at least one aspect, a secondary operation of pushing or urging latch members of a plurality of latches into position or inwardly into engagement with a retaining surface of a connector body can be avoided.

[0257] In at least one aspect, a method of forming a retainer sleeve is provided. The method may include a first step of providing a retainer sleeve. In some examples, providing a retainer sleeve includes forming a retainer sleeve. A second step may include forming at least one latch opening in the retainer sleeve. The latch opening may be an elongated hole formed by a stamping or die process. It is understood that the latch opening may be a variety of shapes, such as rectangular, circular, oval, etc. A third step may include forming a plurality of latches in the retainer sleeve. The latches may be formed using a stamping or die process, although other schemes are feasible.

[0258] In at least one aspect, the connector assemblies described herein can be used with a pressure relief valve, such as a ball valve.

[0259] In at least one aspect, the connector assemblies described herein can be used with a shut-off valve.

[0260] In at least one aspect, the connector assemblies described herein can be used with a flexible hose.

[0261] In at least one aspect, a retainer sleeve for a push-on fitting is provided that includes a connector body, a sealing member, a grip ring, and a barrel. The retainer sleeve may include: a body side wall, the body side wall having a first end, a second end and an opening extending between the first end and the second end along the longitudinal axis, the first end of the retainer sleeve having a sleeve chamfer that increases the radial stiffness and axial stiffness of the retainer sleeve; a plurality of latches, the plurality of latches are defined in the body side wall, the plurality of latches each having a cutout on opposite sides thereof extending parallel to the longitudinal axis, the plurality of latches each including a resiliently flexible latch member having a protrusion; and a latch opening, the latch opening being at the proximal end of each of the plurality of latches, and the latch opening extending through the body side wall; wherein the protrusion helps to narrow or reduce the width of the plurality of latches to provide a gap between the body side wall and the plurality of latches, thereby reducing friction interference; and wherein the gap helps to increase the freedom of movement, so that each latch member is elastically urged in a direction toward the longitudinal axis and is configured to engage with a retaining surface of the connector body when the retainer sleeve is connected to the connector body of the push-on accessory.

[0262] The projection 696 shown in the illustrated embodiment has a rounded shape, is generally curved and is arranged on a latch member 678 having a generally rectangular shape. It should be understood that the projection 696 and the latch member 678 can be of various shapes and sizes. For example, the projection 696 need not be curved, but can be other configurations. The latch member 678 need not be rectangular, but can be other shapes, such as a square defined in the retainer sleeve 604.

Claims

1. A push-on fitting comprising: a connector body having a fluid passage extending at least partially therethrough; a sealing member configured to form a sealing engagement with a fluid conduit; a grip ring comprising a plurality of teeth configured for coupling to the fluid conduit; a barrel positioned adjacent to at least a portion of the grip ring and having a hollow portion therethrough, the grip ring being interposed between the barrel and the sealing member; a retainer sleeve received over at least a portion of the barrel and over at least a portion of the connector body; as well as A plurality of latches are located on the retainer sleeve, each of the plurality of latches comprising a protrusion having a specified radius or curvature, and the plurality of latches are configured to secure the retainer sleeve to the connector body so as to retain the sealing member, the grip ring and the barrel.

2. The push-on fitting according to claim 1, wherein: Each of the plurality of latches in the retainer sleeve can be formed by a stamping or die operation that creates a slit edge in the retainer sleeve.

3. The push-on fitting according to claim 1, wherein: The plurality of latches are punched separately in such a manner that the retainer sleeve is rotated 90 degrees between each punch so that the plurality of latches are manufactured in four steps.

4. The push-on fitting according to claim 1, wherein: Two of the plurality of latches can be stamped simultaneously into the retainer sleeve 180 degrees apart.

5. The push-on fitting according to claim 2, wherein: The formation of the protrusions on the plurality of latches facilitates narrowing or reducing the width of the plurality of latches to provide gaps at opposite sides of the plurality of latches adjacent to the slit edges.

6. The push-on fitting according to claim 5, wherein: The presence of the gap reduces frictional interference or engagement between the opposing sides of the plurality of latches and the slit edges in the retainer sleeve.

7. The push-on fitting according to claim 2, wherein: The punching tool of the punching operation is provided with a projection or a rounded portion designed to form the projections in the latch member when the plurality of latches are punched out of the retainer sleeve.

8. The push-on fitting according to claim 7, wherein: The radiused portion of the punch tool is designed to displace a portion of material in each of the latch members to form the projection.

9. The push-on fitting according to claim 6, wherein: The latch member is movable between a release position and a lock position in a manner that reduces frictional interference or frictional contact with a sleeve sidewall of the retainer sleeve.

10. The push-on fitting according to claim 9, wherein: The gap reduces frictional contact so that the latch member is not prevented from returning to its fully released position once the retainer sleeve is attached to the connector body.

11. The push-on fitting according to claim 9, wherein: When in the locked position, the projection in the latch member allows the plurality of latches to return to their initial release position once engaged with the retaining surface of the connector body to improve engagement between the plurality of latches and the connector body.

12. The push-on fitting according to claim 11, wherein: A secondary operation of pushing or urging the latch members of the plurality of latches into place or inwardly to engage with the retaining surface of the connector body can be avoided.

13. The push-on fitting of claim 1, wherein: The push-on fitting is attached to the pressure reducing valve.

14. The push-on fitting of claim 1, wherein: The push-on fitting is attached to the shut-off valve.

15. The push-on fitting of claim 1, wherein: The push-on fitting is attached to a flexible hose.

16. A method of forming a retainer sleeve, comprising: providing a retainer sleeve; forming a plurality of latch openings in the retainer sleeve; as well as A plurality of latches are formed in the retainer sleeve.

17. The method according to claim 16, wherein: The plurality of latch openings and the plurality of latches are formed by a stamping or die process to produce a slit edge in the retainer sleeve, wherein the plurality of latches are stamped separately in such a manner that the retainer sleeve is rotated 90 degrees between each punch so as to manufacture the plurality of latches in four steps.

18. The method according to claim 17, wherein: A total of four latches are formed in the retainer sleeve, wherein two of the four latches can be stamped simultaneously in the retainer sleeve at 180 degrees apart.

19. A retainer sleeve for a push-on fitting, the push-on fitting comprising a connector body, a sealing member, a grip ring and a barrel, the retainer sleeve comprising: a body sidewall having a first end, a second end, and an opening extending along a longitudinal axis between the first end and the second end, the first end of the retainer sleeve having a sleeve radius that increases radial and axial stiffness of the retainer sleeve; a plurality of latches defined in the body sidewall, each of the plurality of latches having a cutout on opposite sides thereof extending parallel to the longitudinal axis, each of the plurality of latches including a resiliently flexible latch member having a protrusion; as well as a latch opening positioned at a proximal end of each of the plurality of latches and extending through the body sidewall; wherein the protrusions help narrow or reduce the width of the plurality of latches to provide a gap between the side wall of the body and the plurality of latches, thereby reducing friction interference; and wherein the gap helps increase freedom of movement such that each latch member is resiliently urged in a direction toward the longitudinal axis and is configured to engage with a retaining surface of the connector body when the retainer sleeve is coupled to the connector body of the push-on fitting.

20. The retainer sleeve of claim 19, wherein: The formation of the protrusions on the multiple latches helps to narrow or reduce the width of the multiple latches to set gaps at opposite sides of the multiple latches, wherein the presence of the gaps reduces the frictional interference or engagement between the opposite sides of the multiple latches and the side walls of the main body.

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