Retainer cap for use with plumbing connectors

Abstract

The present application relates to connectors that include an inner diameter (ID) snap assembly. The ID snap assembly may be easy to assemble and low cost. The overall configuration of the ID snap assemblies are sleek and slim and may be configured to fit a variety of connectors. The connectors may also include an indicator feature for providing visibility through a connector body. The connector body defines a zone of indication that provides visual indication of two positions of the conduit. A first position of the conduit includes a position wherein the conduit is inserted beyond a seal portion of the connector but not fully inserted to a predetermined depth. And, a second position includes a position wherein the conduit is sealed and fully inserted within the connector body to the predetermined depth (e.g., a depth where an end of the conduit engages a conduit stop of the connector body).

Description

Attorney Docket No. 92470-393437 RETAINER CAP FOR USE WITH PLUMBING CONNECTORS Priority Claim

[0001] This application claims the benefit of and priority to U.S. Patent Application No. 63 / 384,262 filed on November 18, 2022. Incorporation by Reference

[0002] The disclosure and figures of U.S. Patent Application No. 63 / 384,262 filed on November 18, 2022, is incorporated by reference herein as if set forth in its entirety. Additionally, the disclosure and figures of U.S. Patent Application No.63 / 377,921 filed on September 30, 2022, is incorporated by reference herein as if set forth in its entirety. Technical Field

[0003] The present disclosure relates generally to pipe fittings. More specifically, the present disclosure relates to push-to-connect fittings. Background

[0004] Conduits are used to carry a variety of liquids and / or gases. Couplings, connectors, and fittings are used to join the conduits in various ways so that the conduits can be arranged in different configurations to move fluids through the conduits. The conduits may be stiff or rigid as with metal or plastic pipes used in household plumbing applications, or the conduits may be flexible. Connectors are used for end-to-end connection of conduits, or they can route conduits at different directions relative to the conduit axis. For example, connectors can be employed to change the direction of piping, such as by a 45° or 90° angle with respect to a flow passage through the pipe to which the connector is connected. Connectors can also be employed to branch or split piping in different directions. For example, a single pipe section can be connected by a T-fitting or a Y-fitting or a multi-conduit joint or a change in diameter.

[0005] In some instances, couplings, connectors, and fittings may include outer diameter (OD) snap assemblies. The OD snap assembly can make the coupling, connector or fitting bulky and expensive. As such, there is a need for a sleeker, low cost snap assembly.

[0006] In addition, it may be beneficial for a user to identify when a conduit is fully inserted within a coupler, connector or fitting. For an outer diameter seal configuration, there may92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx1be challenges to designing a push-to-connect fitting with an indicator feature without adding complexity or cost due to materials, components, etc. Hence, there is a need in the art for providing an indicator feature for a push-to-connect fitting that is simple, low cost and compatible with a variety of conduits. The present disclosure addresses this and other related and unrelated issues. Summary

[0007] The present application relates to connectors that include an inner diameter (ID) snap assembly. The ID snap assembly may be easy to assemble and low cost. The overall configuration of the ID snap assemblies are sleek and slim and may be configured to fit a variety of connectors.

[0008] The connectors may include an indicator feature for providing visibility inside the connectors. For example, the connectors can include a connector body made of either a transparent or opaque material to provide visibility through the connector body. The connector body defines a zone of indication that provides visual indication of two positions of the conduit. A first position of the conduit includes a position wherein the conduit is inserted beyond a seal portion of the connector while not being fully inserted to a predetermined depth within the connector. And, a second position of the conduit includes a position wherein the conduits is sealed and fully inserted within the connector body to the predetermined depth (e.g., the predetermined depth includes a depth where the end of the conduit engages a conduit stop of the connector body).

[0009] In certain examples, connectors may be coupled to a conduit such that they are not easily removed. In other examples, a conduit may be detachable from the connectors to allow the connectors to be reused (e.g., using a demounting tool or other suitable tool or mechanism). As such, the connectors may be uncoupled without risk of damage to the conduit or connector.

[0010] Aspects of the present disclosure relates to retainer caps for use with a connector. The connector includes a connector body with first and second end openings. The retainer cap has a main body with a substantially continuous outer surface that is dimensioned to fit within one of the first and second end openings of the connector body. The main body has first and second ends.

[0011] The retainer cap includes a rim that is positioned at the first end of the main body. The rim overhangs the outer surface of the main body such that, when the retainer cap is inserted into one of the first and second end openings of the connector body, the rim abuts an end92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx2face of the connector body and prevents the retainer cap from being inserted further into one of the first and second end openings.

[0012] The retainer cap also includes a plurality of longitudinal through-slots spaced uniformly around the main body. The plurality of longitudinal through-slots have an open side at the second end of the main body and an opposite closed side.

[0013] The retainer cap further includes a plurality of flexible legs (e.g., fingers) defined by the main body remaining between adjacent through-slots. The plurality of flexible legs each having a free end. The plurality of flexible legs each include a retention tab at the free end for securing the retainer cap to the connector body.

[0014] Another aspect of the present disclosure relates to a connector assembly. The connector assembly includes a connector body with a first end that defines a first end opening and an opposite second end that defines a second end opening. The connector body defines a fluid passage that extends through the first and second ends, placing the first and second ends in fluid communication. The connector body includes a plurality of apertures. In certain examples, the plurality of apertures are through apertures forming an opening through a wall defining the connector body and extending from the body interior to exterior surface. In other examples or embodiments, the plurality of interior recesses or interior recessed portions are formed within a wall of the connector body, providing a smooth or uniform exterior surface of the connector body.

[0015] The connector assembly includes a first sealing member configured to be inserted into the first end opening of the connector body to form a sealing engagement with a first fluid conduit, and a second sealing member configured to be inserted into the second end opening of the connector body to form a sealing engagement with a second fluid conduit.

[0016] The connector assembly also includes a first grab ring that includes a plurality of teeth configured for coupling to the first fluid conduit and a second grab ring that includes a plurality of teeth configured for coupling to the second fluid conduit.

[0017] The connector assembly further includes a first protection ring partially positioned within the connector body adjacent the first end thereof between the first grab ring and the first sealing ring and a second protection ring partially positioned within the connector body adjacent the second end thereof between the second grab ring and the second sealing ring.

[0018] The connector assembly includes first and second retainer caps each having a main body with a substantially continuous outer surface. The first and second retainer caps are92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx3dimensioned to respectively fit within the first and second end openings of the connector body. The main body of the first and second retainer caps each have first and second ends. The first and second retainer caps each include a rim positioned at the first ends of the main bodies of the first and second retainer caps. The rim overhangs the outer surface of the main bodies such that, when the respective first and second retainer caps are inserted into the respective first and second end openings of the connector body, the rim abuts an end face of the connector body at the first and second ends thereof and prevents the first and second retainer caps from being inserted further into the first and second end openings.

[0019] The first and second retainer caps each include a plurality of longitudinal through-slots spaced uniformly around the main bodies. The plurality of longitudinal through- slots have an open side at the second ends of the main bodies and an opposite closed side.

[0020] The first and second retainer caps each include a plurality of flexible legs defined by the main body remaining between adjacent through-slots. The plurality of flexible legs each have a free end. The plurality of flexible legs each include a retention tab at the free ends for respectively securing the first and second retainer caps to the connector body.

[0021] These and other features and advantages will be apparent from a reading of the following detailed description and a review of the associated drawings. A variety of additional aspects will be set forth in the description that follows. These aspects can relate to individual features and to combinations of features. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the broad concepts upon which the embodiments disclosed herein are based. Brief Description of the Drawings

[0022] The accompanying drawings, which are incorporated in and constitute a part of the description, illustrate several aspects of the present disclosure. A brief description of the drawings is as follows:

[0023] FIG. 1A illustrates a plan view of an example connector assembly including conduits in accordance with principles of the present disclosure.

[0024] FIG. 1B illustrates a perspective view of the connector assembly of FIG. 1A.

[0025] FIG. 2 illustrates an exploded cross-sectional view of the connector assembly of FIG. 1A including a connector body, sealing members, grab rings, protection rings and retainer caps.92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx4

[0026] FIG. 3 illustrates a perspective view of one of the retainer caps of FIG. 1A.

[0027] FIG. 4 illustrates an end view of the retainer cap of FIG. 3.

[0028] FIG.5 illustrates a partial exploded view of the connector assembly of FIG.1A.

[0029] FIG. 6 illustrates a cross-sectional view of the connector assembly of FIG. 1A without the conduits.

[0030] FIG. 7 illustrates an enlarged portion of the connector assembly of FIG. 6.

[0031] FIG.8 illustrates a side view of the connector assembly of FIG. 1A without the conduits, the connector body is depicted as being transparent in accordance with the principles of the present disclosure.

[0032] FIG. 9 illustrates a perspective view of the connector assembly of FIG. 8.

[0033] FIG. 10 illustrates a partial exploded view of another example connector assembly, the connector body having a dust-resistant exterior surface in accordance with principles of the present disclosure.

[0034] FIG. 11 illustrates a cross-sectional view of a portion of the assembled connector assembly of FIG. 10. Detailed Description

[0035] The present application is directed to push-to-connect fittings for use with conduits (e.g., PEX tubings, copper pipes, PVC tubes, CPVC pipes, and the like). These fittings are configured to provide an environmental seal with an end portion of the conduits. That is, a substantially watertight connection can be formed. These push-to-connect fittings may be used with fluid conduits of varying diameters, including fluid conduits having a diameter less than 0.25 inches to fluid conduits having a diameter of greater than 2 inches or more.

[0036] FIGS. 1A-1B illustrate an example connector assembly 100 (e.g. push-to- connect fitting) in accordance with the principles of the present disclosure. The connector assembly 100 may be used in pressure applications over 100 psi. That is, the connector assembly 100 may have a working pressure greater than 100 psi. In certain examples, the connector assembly 100 may have a working pressure in a range of approximately 100 psi to approximately 1500 psi. In other examples, the connector assembly may be used in pressure applications over 1500 psi.

[0037] The connector assembly 100 has a first end 102 and an opposite second end 104 configured to receive and connect to a portion of a tube or tubular member (e.g., a pipe, conduit,92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx5etc.), in particular an end of the tube. As shown, a first conduit 106 is positioned at the first end 102 and a second conduit 108 is positioned at the second end 104.

[0038] FIG.2 illustrates a cross-sectional view of the connector assembly 100 with the first and second conduits 106, 108 removed. The connector assembly 100 may include a connector body 110. The connector body 110 may be a cylindrical main body. A sealing member 112 (e.g., annular o-ring sealing member), a protection ring 114, and a grab ring 116 are respectively mounted within the connector body 110 at both a first end 120, and an opposite, second end 122 of the connector body 110. A retainer cap 118 may be mounted at both the first and second ends 120, 122 of the connector body 110.

[0039] The first end 120 and the second end 122 together define a fluid passage or body interior 124 that extends through the first and second ends 120, 122 along a longitudinal axis X. The first and second ends 120, 122 may be entrance ends to the connector body 110 for receipt of end portions of respective first and second conduits 106, 108. As illustrated, each of the first and second ends 120, 122 of the connector body 110 includes the sealing member 112, the protection ring 114, the grab ring 116 and the retainer cap 118. The retainer cap 118 is configured to facilitate retention of the sealing member 112, the protection ring 114 and the grab ring 116 at the first and second ends 120, 122 of the connector body 110.

[0040] Turning to FIGS. 3-5, multiple views of the retainer cap 118 are illustrated. FIG. 3 illustrates a perspective view of the retainer cap 118. FIG. 4 illustrates a top view of the retainer cap 118. FIG. 5 illustrates an exploded view of the retainer cap 118, the sealing member 112, the protection ring 114, and the grab ring 116 from the connector body 110 at the second end 122.

[0041] The retainer cap 118 includes a main body 126 that has a substantially continuous outer surface 128 that is dimensioned to fit within one of a first end opening 130 defined at the first end 120 of the connector body 110 or a second end opening 132 defined at the second end 122 of the connector body 110. The main body 126 of the retainer cap 118 has a first end 134 and an opposite, second end 136. The retainer cap 118 may be made with a colored material or contain a special surface finish or texturing treatment that distinguishes it separately from the connector body 110.

[0042] The retainer cap 118 includes a rim 138 (e.g., flange) positioned at the first end 134 of the main body 126. The rim 138 overhangs the outer surface 128 of the main body 12692470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx6such that, when the retainer cap 118 is inserted into one of the first and second end openings 130, 132 of the connector body 110, the rim 138 abuts an end face 140 of the connector body 110 and prevents the retainer cap 118 from being inserted further into one of the first and second end openings 130, 132. The rim 138 includes a first diameter D1 dimensioned to be larger than a second diameter D2 of an opening 156 defined in the retainer cap 118. The opening 156 of the retainer caps 118 receive the first and second conduits 106, 108, respectively. As such, ends of the first and second conduits 106, 108 may be inserted through the opening 156 of the retainer caps 118 into the connector body 110 that provides indication of partial insertion upon sealing and full insertion.

[0043] The retainer cap 118 includes a plurality of longitudinal through-slots 142 spaced uniformly around the main body 126. The plurality of longitudinal through-slots 142 each have an open side 144 at the second end 136 of the main body 126 and an opposite closed side 146. The closed side 146 of each one of the plurality of longitudinal through-slots 142 includes a flat inner surface 158. In certain examples, the plurality of longitudinal through-slots 142 are generally U-shaped, although alternatives are possible. The plurality of longitudinal through-slots 142 each extend along a substantial portion of the main body 126. As depicted, the retainer cap 118 includes four longitudinal through-slots 142 that are spaced uniformly around the main body 126. It will be appreciated that the number of longitudinal through-slots 142 may vary to be more or less than depicted.

[0044] The retainer cap 118 including a plurality of flexible legs 148 (e.g., fingers) defined by portions of the main body 126 remaining between adjacent through-slots 142. That is, the plurality of flexible legs 148 are integrally formed with the main body 126 of the retainer cap 118. The plurality of flexible legs 148 each have a free end 150 and a retention tab 152 (e.g., snapping feature) at the free end 150 for securing the retainer cap 118 to the connector body 110. As depicted, the retainer cap 118 includes four flexible legs 148 spaced uniformly around the main body 126 between adjacent through-slots 142. It will be appreciated that the number of flexible legs 148 may vary to be more or less than depicted.

[0045] As shown in FIG. 3, the retainer cap 118 can have alternating longitudinal through-slots 142 and flexible legs 148 that form an edge surface 159 that is continuous. The edge surface 159 can have a curvilinear profile that includes curved transitions between the substantially flat inner surfaces 158 at the closed side 146 of individual longitudinal through-slots 142 and the92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx7free ends 150 of the flexible legs 148. For example, the longitudinal through-slots 142 may appear to have a U-shape and the flexible legs 148 may appear to have an inverted U-shape. The plurality of longitudinal through-slots 142 each extend along a substantial portion of the main body 126 such that when the first and second conduits 106, 108 are mounted in connector assembly 100, the conduits 106, 108 may be seen through the longitudinal through-slots 142 of the retainer caps 118. As shown in FIG.5, a width (wl) of an individual flexible leg 148 may be greater than a width (wt) of an individual retention tab 152. Also, a width (ws) of an individual through-slot 142 may be substantially similar to a width (wt) of an individual retention tab 152.

[0046] The retention tab 152 extends radially outward from the main body 126 of the retainer cap 118. The retention tab 152 of the plurality of flexible legs 148 may include a ramped surface 154 that tapers outwardly in a direction from the second end 136 of the main body 126 of the retainer cap 118 toward the first end 134 of the main body 126 of the retainer cap 118. In certain examples, the retention tab 152 may include a trapezoidal shape, although alternatives are possible. In certain examples, the retention tab 152 extend radially outward to align substantially with the rim 138 of the retainer cap 118. In certain examples, the retention tab 152 extend radially and are dimensioned to fit within the aperture 162 defined within a wall of the connector body 110.

[0047] The retention tabs 152 of the plurality of flexible legs 148 each include hook portions 160 configured to retain the retention tabs 152 into respective apertures 162 defined in the connector body 110 to form an internal snap-fit connection. As depicted, the connector body 110 includes four apertures 162 adjacent the first end 120 and four apertures 162 adjacent the second end 122, although alternatives are possible. The four apertures 162 at both the first and second ends 120, 122 are spaced uniformly around the connector body 110. When the retainer caps 118 are inserted into the respective first and second end openings 130, 132 of the connector body 110, the retention tabs 152 of the plurality of flexible legs 148 pass through a respective one of the plurality of apertures 162 in the connector body 110.

[0048] Referring to FIGS. 6-7, cross-sectional views of the connector assembly 100 is depicted without the first and second conduits 106, 108. When the retainer caps 118 are moved along the longitudinal axis X and inserted into the first and second end openings 130, 132 of the connector body 110, the ramped surfaces 154 of the retention tabs 152 engage and pass over tapered inner surfaces 164 (see FIG. 2) provided at the first and second ends 120, 122 of the92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx8connector body 110. The retainer caps 118 can be pushed into the first and second end openings 130, 132 until the retention tabs 152 pass through the apertures 162 allowing the hook portions 160 to snap into the apertures 162. As such, the retainer caps 118 may be retained in the locked position as would be understood by those skilled in the art.

[0049] The plurality of flexible legs 148 are resiliently flexible and biased to flex inwardly and outwardly. That is, when the retainer caps 118 are inserted into the connector body 110 so as to exert an outward force on the plurality of flexible legs 148, the plurality of flexible legs 148 may flex or bias inwardly. During insertion, the plurality of flexible legs 148 may flex inwardly until the retention tabs 152 pass through the apertures 162 allowing the plurality of flexible legs 148 to flex or bias outwardly to its original position. Once the retainer caps 118 are inserted into the connector body 110 such that the retention tabs 152 are aligned with and pass through the apertures 162, the hook portions 160 abut or contact an edge 166 of the apertures 162 of the connector body 110.

[0050] Still referring to FIG.6, the connector body 110 may be constructed as a single- piece and comprises a single unitary, integral component that cannot be separated without destruction. The connector body 110 may be made of a plastic or other polymeric material suitable for the intended application, such as polyphenylsulfone (PPSU), although alternatives are possible. At least a portion of the connector body 110 may include a plastic construction that may be light transmissive. The use of plastic material may assist in reducing the complexity, part count and cost of connectors. In other examples, the connector body 110 may be made from a metallic material, such as brass or stainless steel. Further details regarding a transparent connector body are found in U.S. Application Serial No.63 / 377,921, filed on September 30, 2022, which is hereby incorporated by reference in its entirety.

[0051] In other examples, the connector body 110 may include a viewing window for allowing visual inspection of the first and second conduits 106, 108 during insertion. That is, only a portion of the connector body 110 that includes the viewing window may be made with a plastic material to provide visibility to an indication zone 168. When the first and second conduits 106, 108 are mounted they may be seen through the longitudinal through-slots 142 of the retainer caps 118 as the first and second conduits 106, 108 pass therethrough into the connector body 110.

[0052] The connector assembly 100 may be made in a variety of configurations and sizes that are designed to handle various fluid applications. For example, the connector assembly92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx9100 may include a straight-line connector body or coupler, an elbow connector body or coupler, a t-shaped connector body or coupler, a blind-end connector body that blocks flow, a connector body configured to receive different diameter fluid conduits, an angle connector body, a multi-line (or 4-way) connector body, a wye (Y) connector body, a tee-wye connector body, another type of connector body or combinations of connector bodies.

[0053] In some examples, the connector assembly 100 may include a tube liner (not shown) that may be retained within conduits of the connector assembly 100. For example, the first and second conduits 106, 108 may each include a tube liner (not shown) to prevent light transmission therethrough. The advantageous feature of having the tube liner allows the transparent connector body 110 to be utilized in applications where light transmission is not preferred but visible indication of full insertion of the conduits is desired.

[0054] In still other examples, a separate element (e.g., a snap-ring, a c-ring, a cover, a sleeve or similar part) (not shown) may be used to cover any transparent portion or section of the connector body 110 to prevent light transmission. That is, a separate element may be placed on the outside of the transparent connector body 110 to limit light infiltration. In certain examples, the separate element may be placed within recessed portions 170 of the connector body 110. The recessed portions 170 define annular reinforcement ribs that may extend continuously or discontinuously along the entire circumference of the connector body 110.

[0055] In the example depicted, the entire connector body 110 is made with a plastic construction, although alternatives are possible. As such, the entire connector body 110 may be clear or transparent to provide the indication zone 168 for viewing the body interior 124. In other examples, at least a portion of the connector body 110 may be transparent to allow visibility of the indicator zone 168. Even with the retainer caps 118 mounted at the first and second ends 120, 122 of the connector body 110, there still remains a visible area on the connector body 110 that includes the indication zone 168.

[0056] The connector body 110 provides visible indication of two positions of the conduit within the indication zone 168. A first position of the first conduit 106 includes a position wherein the first conduit 106 is inserted beyond a seal portion of the connector body 110 but not fully inserted to a predetermined depth 178 (see FIG. 2). That is, a conduit may be partially inserted into the connector body 110 from the first and / or second ends 120, 122 where the insertion of the conduit(s) is past or beyond the sealing member 112. A second position of the first conduit92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx10106 includes a position wherein the first conduit 106 is sealed and fully inserted within the connector body 110 to the predetermined depth 178 (e.g., the predetermined includes a depth where the end of the conduit engages a conduit stop of the connector body).

[0057] In the example depicted, the retainer caps 118 are not transparent, although alternative are possible. As such, when the retainer caps 118 are respectively mounted at the first and second ends 120, 122 inside of the connector body 110, portions of the transparent connector body 110 may be hidden or covered.

[0058] The indication zone 168 provides visibility within the body interior 124 of the connector body 110 for visual inspection by a naked eye of ends of the first and second conduits 106, 108. The indication zone 168 may have a length L (see FIG.8) defined along the longitudinal axis X of the connector body 110.

[0059] Turning again to FIGS. 8-9, the connector body 110 defines first and second cavities 172, 174 (e.g., internal bores, receptacles, etc.) for receiving the first and second conduits 106, 108, respectively. The first and second cavities 172, 174 are nonthreaded cavities, although alternatives are possible. The first and second cavities 172, 174 provide a snug sliding fit for the first and second conduits 106, 108 when inserted therein. The first and second cavities 172, 174 allow the first and second conduits 106, 108 to be fluidly connected to one another. It will be appreciated that fluid flow may occur in either direction between the first and second conduits 106, 108.

[0060] The connector body 110 includes a circumferential rib 176 (e.g., divider, lip, step) centrally located inside the connector body 110 between ends of the respective first and second cavities 172, 174 to prevent the first and second conduits 106, 108 from moving any further into the connector body 110.

[0061] The circumferential rib 176 also defines the predetermined depth 178 for which the first and second conduits 106, 108 may each be inserted into the first and second cavities 172, 174 of the connector body 110. The predetermined depth 178 may refer to the depth that the first and second conduits 106, 108 may each be inserted into the connector body 110 in order to be fully or completely inserted. The predetermined depth 178 is the longitudinal distance between the respective first and second ends 120, 122 (i.e., entrance ends) of the connector body 110 and the circumferential rib 176. Axial end face stops 180 are defined on opposing sides of the circumferential rib 176 at the predetermined depth 178 for the first and second conduits 106, 10892470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx11to engage when inserted fully into the connector body 110. That is, ends of the first and second conduits 106, 108 may abut or press against the axial end face stops 180 of the circumferential rib 176 when the first and second conduits 106, 108 are fully inserted inside the connector body 110 to the predetermined depth 178. The circumferential rib 176 may provide a spacing or gap 182 (see FIG. 2) between distal ends of the first and second cavities 172, 174 of the connector body 110.

[0062] Referring to FIG.6, the indication zone 168 of the connector body 110 provides visibility of the first and second conduits 106, 108 upon insertion. The indicator zone 168 may expand longitudinally along the connector body 110 a distance between both distal ends 184 of the first and second cavities 172, 174. The indication zone 168 provides indication for a plurality of positions of the first and second conduits 106, 108, e.g., two positions of the first and second conduits 106, 108. Specifically, the indication zone 168 provides a visible indication of when the first and second conduits 106, 108 are partially inserted into the connector body 110 (e.g., at a first conduit position) through at least the seal of the connector assembly 100 provided by the sealing member 112.

[0063] The indication zone 168 provides visibility of the respective first and second conduits 106, 108 once the ends of the first and second conduits 106, 108 are partially inserted and passed through the sealing members 112 of the connector assembly 100. Partial insertion may include up to a location before reaching the axial end face stop 180 or predetermined depth 178 of the respective first and second cavities 172, 174. That is, when the ends of the first and second conduits 106, 108 are only partially inserted into the connector body 110 (i.e., a partial insertion position), the ends of the respective first and second conduits 106, 108 may be positioned at a depth that is less than the predetermined depth 178 within the connector body 110. That is, the end of the respective first and second conduits 106, 108 do not reach or engage the axial end face stops 180 of the circumferential rib 176 of the connector body 110.

[0064] The indication zone additionally provides a visible indication of when the first and second conduits 106, 108 are fully inserted into the connector body 110 through the sealing member 112 of the connector assembly 100 to the respective axial end face stops 180 or predetermined depth 178 (e.g., at a second position). The ends of the first and second conduits 106, 108 are fully or entirely inserted into the connector body 110 (i.e., a complete insertion position) past the sealing member 112 when the ends of the respective first and second conduits92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx12106, 108 are positioned at a depth that is equal to the predetermined depth 178 within the connector body 110. Once fully inserted, the end of the respective first and second conduits 106, 108 are positioned at the predetermined depth 178 to interface with the axial end face stops 180.

[0065] In certain examples, the first and second conduits 106, 108 are not removable from the connector body 110, although alternatives are possible. In other examples, the connector assembly 100 may include a demount ring (not shown) configured to allow first and second conduits 106, 108 to be removed from a connector body 110. The demount ring can be positioned at first and second ends 102, 104 of the connector assembly 100.

[0066] The sealing member 112 may be formed of a resilient material, such as rubber, EPDM, or other suitable elastomers. The sealing members 112 are shown as an O-ring with a circular cross-section. The sealing members 112 are configured to fit into and seal against the connector body 110 and to form a substantially fluid tight seal with the conduits passing through an inner diameter of the sealing members 112. As such, the sealing members 112 provide an outer diameter seal with the conduits passing through and allow for easier insertion. For example, the sealing members 112 located at the respective first and second ends 120, 122 of the connector body 110 are respectively positioned on the outer body of the first and second conduits 106, 108 to provide for sufficient sealing of the first and second conduits 106, 108 within the connector body 110.

[0067] Turning again to FIG. 6, the connector body 110 includes an inner annular chamber 186 with an annular surface 188 within the connector body 110 that is configured to provide a seat for the sealing member 112. That is, the sealing member 112 can be housed within the inner annular chamber 186 and press against the annular surface 188 to provide sufficient sealing of the first and second conduits 106, 108 within the connector body 110.

[0068] The second ends 136 of the retainer caps 118 support the grab rings 116 when the retainer caps 118 are inserted into the connector body 110. The grab ring 116 has a ring 190 that engages the second end 136 of the retainer caps 118 when the retainer cap 118 is attached to the connector body 110 (i.e., when the connector assembly 100 is assembled). The grab ring 116 also includes a plurality of axially-inwardly facing teeth 192 that are slanted relative to the ring 190 and encircle the longitudinal axis X. The grab rings 116 are configured to respectively secure the first and second conduits 106, 108 within the connector body 110 and prevent the conduits 106, 108 from backing out of the connector body 110. That is, the plurality of axially-inwardly92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx13facing teeth 192 of the grab rings 116 are configured to grip an outer surface of the first and second conduits 106, 108, respectively. The grab ring 116 may be formed of metal, such as stainless steel.

[0069] The protection rings 114 are partially positioned within the inner annular chamber 186 of the connector body 110. The protection rings 114 and the retainer caps 118 are held together to secure the grab rings 116 between the retainer cap 118 and the protection ring 114. The protection ring 114 includes an inclined surface 194 inclined inward and toward a distal end 196 of the protection ring 114 so as to generally align with the plurality of axially-inwardly facing teeth 192 of the grab ring 116. The protection ring 114 may help prevent the plurality of axially- inwardly facing teeth 192 from contacting and damaging the sealing member 112. The plurality of axially-inwardly facing teeth 192 are configured to flex radially outward and toward the inclined surface 194 of the protection ring 114 when the first and second conduits 106, 108 pass through the opening formed by the ring 190 and the plurality of axially-inwardly facing teeth 192 of the grab rings 116. The protection ring 114 can be made of a suitable plastic, e.g., including but not limited to thermoplastics such as nylon fiber.

[0070] Another embodiment of a connector assembly 200 is shown in FIGS. 10-11. Connector assembly 200 is substantially similar to connector assembly 100 shown in FIGS. 1-9. The disclosure of connector assembly 200 is similar to connector assembly 100. Differences between assemblies 100 and 200 are discussed below and shown in FIGS. 10-11.

[0071] FIG. 10 illustrates a partial exploded view of the connector assembly 200 showing the retainer cap 218, the sealing member 212, the protection ring 214, and the grab ring 216 separated from the connector body 210 at the second end 222. As shown, the connector body 210 does not include through apertures. The connector body 210 may have a substantially cylindrical shape and substantially uniform exterior surface. The connector body 210 may have recessed portions 270 in the exterior surface providing visibility within the connector body 210. Except for the recessed portions 270, the connector body 210 may have an exterior surface that is free of apertures, grooves, and / or additional recesses such that the surface is substantially uniform / continuous. In additional or alternative embodiments, recessed portions 270 may be excluded to have a substantially continuous, cylindrical outer surface.

[0072] The connector body 210 includes a plurality of interior recesses or recessed portions 262 formed in an inner surface of the connector body 210 within a wall defining the fluid passage that extends through the first and second ends of the connector body 210. The recesses92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx14262 dimensioned such that the retainer tabs 252 of the retainer caps 218 can connect with the recesses 262 and be secured within the body interior 224.

[0073] As shown in FIG.11, the interior recesses or recessed portions 262 of connector assembly 200 are formed within the interior wall of the connector body 210 as recesses or undercuts and do not penetrate the exterior surface of the connector body 210. When the retainer caps 218 are inserted into the respective first and second end openings 230, 232 of the connector body 210, the retention tabs 252 of the plurality of flexible legs 248 fit within a respective one of the plurality of recesses or recessed portions 262 formed within the interior wall of the connector body 210 to connect to the retainer caps 218 to the connector body 210.

[0074] The plurality of flexible legs 248 each include hook portions 260 dimensioned such that the retention tabs 252 fit into respective interior recesses 262 defined in the connector body 210 to form an internal snap-fit connection. As depicted, the connector body 210 includes four recesses 262 adjacent the first end 220 and four recesses 262 adjacent the second end 222, although alternatives are possible. The four recesses 262 at both the first and second ends 220, 222 are spaced uniformly within the body interior 224 of the connector body 210 and do not penetrate the exterior surface of the connector body 210. When the retainer caps 218 are inserted into the respective first and second end openings 230, 232 of the connector body 210, the retention tabs 252 of the plurality of flexible legs 248 are secured within a respective one of the plurality of recesses 262 in the connector body 210. In some examples, the entire connector body 210 or a portion thereof may be clear or transparent to provide visibility of the indicator zone 268 (FIG.10) and / or the connection of the retention tabs 252 in the respective undercut recesses 262 defined in the connector body 210.

[0075] From the forgoing detailed description, it will be evident that modifications and variations can be made without departing from the spirit and scope of the disclosure.92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx15

Claims

What is claimed is:

1. A retainer cap for use with a connector, the connector including a connector body having first and second end openings, the retainer cap comprising: a main body including a substantially continuous outer surface that is dimensioned to fit within one of the first and second end openings of the connector body, the main body having first and second ends; a rim positioned at the first end of the main body, the rim overhanging the outer surface of the main body such that, when the retainer cap is inserted into one of the first and second end openings of the connector body, the rim abuts an end face of the connector body and prevents the retainer cap from being inserted further into one of the first and second end openings; a plurality of longitudinal through-slots spaced uniformly around the main body, the plurality of longitudinal through-slots having an open side at the second end of the main body and an opposite closed side; and a plurality of flexible legs defined by the main body remaining between adjacent through- slots, the plurality of flexible legs each having a free end, and wherein the plurality of flexible legs each include a retention tab at the free end for securing the retainer cap to the connector body.

2. The retainer cap of claim 1, wherein the retention tab of the plurality of flexible legs includes a ramped surface that tapers outwardly in a direction from the second end of the retainer cap toward the first end of the retainer cap.

3. The retainer cap of claim 1, wherein the rim is dimensioned to be larger than an opening of the retainer cap.

4. The retainer cap of claim 1, wherein the retention tab has a trapezoidal shape.

5. The retainer cap of claim 1, wherein the plurality of longitudinal through-slots extend along a substantial portion of the main body.92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx166. The retainer cap of claim 1, wherein the retainer cap includes four longitudinal through- slots spaced uniformly around the main body.

7. The retainer cap of claim 1, wherein the retainer cap includes four flexible legs spaced uniformly around the main body between adjacent through-slots.

8. The retainer cap of claim 1, wherein the retention tab includes a locking edge configured to hook the retention tab into an aperture defined in the connector body to form an internal snap- fit connection therewith.

9. The retainer cap of claim 1, wherein the retention tab extends radially outward from the main body.

10. The retainer cap of claim 1, wherein the plurality of longitudinal through-slots have a U- shape.

11. The retainer cap of claim 1, wherein the closed side of each one of the plurality of longitudinal through-slots includes a flat inner surface.

12. The retainer cap of claim 1, wherein the plurality of flexible legs are integrally formed with the main body of the retainer cap.

13. The retainer cap of claim 1, wherein alternating longitudinal through-slots and flexible legs form an edge surface that is continuous with curved transitions, the edge surface comprising substantially flat inner surfaces at the closed side of individual longitudinal through-slots and substantially flat surfaces at the free ends of the flexible legs.

14. The retainer cap of claim 1, wherein a width of an individual flexible leg is greater than a width of an individual retention tab.92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx1715. The retainer cap of claim 1, wherein a width of an individual through-slot is substantially similar to a width of an individual retention tab.

16. A connector assembly comprising: a connector body having a first end that defines a first end opening and an opposite second end that defines a second end opening, the connector body defining a fluid passage that extends through the first and second ends, the connector body including a plurality of apertures; a first sealing member configured to be inserted into the first end opening of the connector body to form a sealing engagement with a first fluid conduit, and a second sealing member configured to be inserted into the second end opening of the connector body to form a sealing engagement with a second fluid conduit; a first grab ring comprising a plurality of teeth configured for coupling to the first fluid conduit, and a second grab ring comprising a plurality of teeth configured for coupling to the second fluid conduit; a first protection ring partially positioned within the connector body adjacent the first end thereof between the first grab ring and the first sealing ring, a second protection ring partially positioned within the connector body adjacent the second end thereof between the second grab ring and the second sealing ring; and first and second retainer caps each having a main body with a substantially continuous outer surface, the first and second retainer caps being dimensioned to respectively fit within the first and second end openings of the connector body, the main body of the first and second retainer caps each having first and second ends, the first and second retainer caps each comprising: a rim positioned at the first ends of the main bodies of the first and second retainer caps, the rim overhanging the outer surface of the main bodies such that, when the respective first and second retainer caps are inserted into the respective first and second end openings of the connector body, the rim abuts an end face of the connector body at the first and second ends thereof and prevents the first and second retainer caps from being inserted further into the first and second end openings;92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx18a plurality of longitudinal through-slots spaced uniformly around the main bodies, the plurality of longitudinal through-slots having an open side at the second ends of the main bodies and an opposite closed side; and a plurality of flexible legs defined by the main body remaining between adjacent through-slots, the plurality of flexible legs each having a free end, and wherein the plurality of flexible legs each include a retention tab at the free ends for respectively securing the first and second retainer caps to the connector body.

17. The connector assembly of claim 16, wherein the plurality of flexible legs are integrally formed with the main bodies of the first and second retainer caps.

18. The connector assembly of claim 16, wherein, when the respective first and second retainer caps are inserted into the respective first and second end openings of the connector body, the retention tabs of the plurality of flexible legs are adapted to engage a respective one of the plurality of apertures of the connector body.

19. The connector assembly of claim 16, wherein the connector body includes four apertures adjacent the first end thereof and four apertures adjacent the second end thereof, wherein the four apertures at both the first and second ends are spaced uniformly around the connector body.

20. The connector assembly of claim 19, wherein the first and second retainer caps each include four flexible legs spaced uniformly around the main body of the respective first and second retainer caps between adjacent longitudinal through-slots.

21. The connector assembly of claim 20, wherein, when the respective first and second retainer caps are inserted into the respective first and second end openings of the connector body, the retention tabs of the four flexible legs align with the four apertures at the respective first and second ends of the connector body to snap therein to secure the first and second retainer caps to the connector body.92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx1922. The connector assembly of claim 16, wherein the retention tab has a trapezoidal shape.

23. The connector assembly of claim 16, wherein the closed side of each one of the plurality of longitudinal through-slots includes a flat inner surface.

24. The connector assembly of claim 16, wherein the connector body includes at least a portion having a plastic construction that is light transmissive, wherein the portion of the connector body including the plastic construction that is light transmissive at least partially defines a visible indication zone.

25. The connector assembly of claim 24, wherein the visible indication zone provides visual indication of two positions of the first and second fluid conduits inside the connector body, wherein a first position of the first and second fluid conduits includes a position where the first and second fluid conduits are respectively inserted beyond a seal portion of the connector body but not fully inserted to a predetermined depth defined by a conduit stop within the connector body.

26. The connector assembly of claim 25, wherein a second position of the first and second conduits includes a position where the first and second conduits are sealed and fully inserted within the connector body to the predetermined depth.

27. A method of assembling a connection fitting, the method comprising: a step of obtaining a connector body that defines a channel that extends therethrough, the connector body being configured to receive a conduit and having an end stop; a step of positioning an o-ring sealing member in the channel of the connector body; a step of positioning a protection ring adjacent an end of the connector body; a step of positioning a grab ring adjacent the projecting ring such that the protection ring is partially positioned within the connector body between the grab ring and the sealing ring; and a step of positioning a retainer cap on the connector body, the grab ring being retained with the assistance of the retainer cap, the grab ring being configured to grip an outer surface of the conduit, the retainer cap comprising:92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx20a main body including a substantially continuous outer surface that is dimensioned to fit within one of first and second end openings of the connector body, the main body having first and second ends; a rim positioned at the first end of the main body, the rim overhanging the outer surface of the main body such that, when the retainer cap is inserted into one of the first and second end openings of the connector body, the rim abuts an end face of the connector body and prevents the retainer cap from being inserted further into one of the first and second end openings; a plurality of longitudinal through-slots spaced uniformly around the main body, the plurality of longitudinal through-slots having an open side at the second end of the main body and an opposite closed side; and a plurality of flexible legs defined by the main body remaining between adjacent through-slots, the plurality of flexible legs each having a free end, and wherein the plurality of flexible legs each include a retention tab at the free end for securing the retainer cap to the connector body.

28. The method of claim 27, wherein the connector body has a light transmissive portion with a plastic construction, the connector body including an indication zone at least partially defined by the light transmissive portion of the connector body, the indication zone providing indication of two positions of the conduit including a first position wherein the conduit is partially inserted and sealed by the o-ring sealing member and a second position wherein the conduit is fully inserted to engage the end stop.

29. The method of claim 27, wherein the conduit is removably configured to be inserted into the channel of the connector body.

30. The method of claim 27, wherein the two positions of the conduit are viewable by a naked eye.92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx2131. A connector assembly comprising: a connector body having a first end that defines a first end opening and an opposite second end that defines a second end opening, the connector body defining a fluid passage that extends through the first and second ends, the connector body including a plurality of interior recesses in a wall of the connector body within the fluid passage; a first sealing member configured to be inserted into the first end opening of the connector body to form a sealing engagement with a first fluid conduit, and a second sealing member configured to be inserted into the second end opening of the connector body to form a sealing engagement with a second fluid conduit; a first grab ring comprising a plurality of teeth configured for coupling to the first fluid conduit, and a second grab ring comprising a plurality of teeth configured for coupling to the second fluid conduit; a first protection ring partially positioned within the connector body adjacent the first end thereof between the first grab ring and the first sealing ring, a second protection ring partially positioned within the connector body adjacent the second end thereof between the second grab ring and the second sealing ring; and first and second retainer caps each having a main body with a substantially continuous outer surface, the first and second retainer caps being dimensioned to respectively fit within the first and second end openings of the connector body, the main body of the first and second retainer caps each having first and second ends, the first and second retainer caps each comprising: a rim positioned at the first ends of the main bodies of the first and second retainer caps, the rim overhanging the outer surface of the main bodies such that, when the respective first and second retainer caps are inserted into the respective first and second end openings of the connector body, the rim abuts an end face of the connector body at the first and second ends thereof and prevents the first and second retainer caps from being inserted further into the first and second end openings; a plurality of longitudinal through-slots spaced uniformly around the main bodies, the plurality of longitudinal through-slots having an open side at the second ends of the main bodies and an opposite closed side; and92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx22a plurality of flexible legs defined by the main body remaining between adjacent through-slots, the plurality of flexible legs each having a free end, and wherein the plurality of flexible legs each include a retention tab at the free ends for respectively securing the first and second retainer caps to the connector body, the retention tabs dimensioned to connect with the interior recesses of the connector body.

32. The connector assembly of claim 31, wherein each of the first and second retainer caps further comprise an edge surface formed by alternating longitudinal through-slots and flexible legs and is continuous with curved transitions, the edge surface comprising substantially flat inner surfaces at the closed side of individual longitudinal through-slots and substantially flat surfaces at the free ends of the flexible legs.

33. The connector assembly of claim 31, wherein, for each of the first and second retainer caps, a width of an individual flexible leg is greater than a width of an individual retention tab.

34. The connector assembly of claim 31, wherein, for each of the first and second retainer caps, a width of an individual through-slot is substantially similar to a width of an individual retention tab.92470-393437 PCT APP-Based on PROV (RWCUS215)(40584896.3).docx23

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