Press-fit joint

Abstract

The invention relates to a press-fit joint. The press fitting may include a connector body and a press sleeve. The connector body includes a connection section and a retention section. The connection section is configured to receive a catheter. A press-fit sleeve may be crimped over the conduit and the connection section.

Description

[0001] Priority claim

[0002] This application claims priority to U.S. patent application No. 63 / 378,637 filed on October 6, 2022 and U.S. patent application No. 63 / 519,609 filed on August 15, 2023.

[0003] Incorporation by Reference

[0004] The disclosures and drawings of U.S. patent application No. 63 / 378,637 filed on October 6, 2022 and U.S. patent application No. 63 / 519,609 filed on August 15, 2023 are incorporated herein by reference in their entirety. Technical Field

[0005] The present disclosure relates generally to pipe connections. More particularly, the present disclosure relates to press fittings for connecting sections of pipe. Summary of the invention

[0006] The present application relates to a compression or crimping fitting for joining conduits, such as pipes or tubes for fluids. The compression fitting includes a connector body having a first end, an opposite second end, and a passage or bore extending through the first end and the second end along its longitudinal length, thereby placing the first end and the second end in fluid communication. The passage of the connector body includes a tapered lead-in portion to allow fluid to easily flow therethrough.

[0007] The connector body may include a single piece or unitary body made of plastic or other polymeric suitable material such as polyphenylsulfone (PPSU), although other solutions are possible. In other examples, the connector body may be made of polysulfone (PSU) or polyphenylene sulfide (PPS) or other similar polymeric materials. In other examples, the connector body may be made of forged or cast metal materials such as brass, stainless steel, bronze, copper alloys, steel alloys, etc. without departing from the scope of the present disclosure.

[0008] The connector body includes a first connection section at a first end of the connector body and a second connection section at a second end of the connector body. The first connection section and the second connection section can be cylindrical portions extending in a generally longitudinal direction. The first connection section and the second connection section are sized to be accommodated in passages of corresponding first and second conduits (e.g., pipes, tubing) to form an inner diameter ID seal with the first and second conduits. In some examples, the connection section can include a nipple portion configured to be received in the conduit.

[0009] The first connection section and the second connection section define an inner surface (e.g., an interior surface) and an outer surface (e.g., an exterior surface). The outer surface of the first connection section and the second connection section may have a surface portion sized to engage with the inner wall of the first conduit and the second conduit to facilitate clamping the first conduit and the second conduit or otherwise engaging with the conduit. The surface portion may include a barbed portion on the outer surface of the connection section to help couple the connector body to the respective first conduit and the second conduit. The configuration of the barbed portion may be specified by ASTM F3347 or F3348 or other suitable specifications or standards.

[0010] The connector body may also include a circumferential rib extending from the connector body between the first connection section and the second connection section. The circumferential rib is integrally formed with the connector body as a single piece or unit. The circumferential rib may be located in the middle or central portion of the connector body between the first connection section and the second connection section.

[0011] The circumferential ribs may include a handle portion and a crossbar portion that forms a T-shaped locating rib extending along opposite sides of the connector body, but alternatives are possible. In an example, multiple locating ribs may be positioned on opposite sides of the connector body, although other solutions are possible. The crossbar portion may extend longitudinally parallel to the connector body and perpendicular to the handle portion. The crossbar portion of the locating rib has or carries a contact or engagement member that serves as an alignment feature for a press fit tool or crimping tool.

[0012] The connector body may also include circumferential walls or portions (e.g., protrusions) extending outwardly from the outer surface of the connector body on opposite sides of the positioning rib. Each circumferential wall includes an inclined surface. The circumferential wall may be integrally formed as a component with the connector body or integrally formed with the connector body. The shank of the positioning rib and the wall of the connector body together define a channel on opposite sides of the positioning rib. The crossbar portion may extend above the channel and above the wall of the connector body.

[0013] The press-fit joint also includes press sleeves (i.e., press-fit portions or elements) attached to the connector body. The first press sleeve is received on the first connection section, and the second press sleeve is received on the second connection section. The first press sleeve and the second press sleeve are pre-installed on the connector body for ease of installation. The first press sleeve and the second press sleeve can be formed of a metal material, such as stainless steel, copper, aluminum or other suitable metal materials. The first press sleeve and the second press sleeve together with the connector body define corresponding first and second channels for receiving the first conduit and the second conduit. The first press sleeve and the second press sleeve are deformable and are configured to be engaged and deformed by a press tool or a crimping tool to connect the conduit to the press-fit joint.

[0014] The first and second press-fit sleeves each include a distal end and an opposing proximal end. The distal ends of the first and second press-fit sleeves include a flange, and the proximal ends of the first and second press-fit sleeves include a lip. The flanges at the distal ends of the first and second press-fit sleeves include a tapered lead-in, and the lips at the proximal ends of the first and second press-fit sleeves include a curved edge.

[0015] During assembly of the first and second press-fit sleeves to the connector body, the first and second press-fit sleeves are moved relative to the connector body along the longitudinal axis so that the curved edges of the lips of the first and second press-fit sleeves engage the inclined surface of the circumferential wall. The inclined surface of the circumferential wall helps guide the first and second press-fit sleeves over the circumferential wall and into the channel of the connector body for attachment to the connector body (e.g., the lips of the press-fit sleeves are received or otherwise positioned within the channel to connect the press-fit sleeves to the connector body).

[0016] When the first and second compression sleeves are connected to the connector body, the first and second compression sleeves and the corresponding first and second connection sections together define a passage for receiving the first and second conduits, respectively.

[0017] The contact members of the crossbar portions of the positioning ribs are configured to engage with the outer surfaces of the first and second compression sleeves to facilitate a substantially secure connection with the connector body. The crossbar portions are also configured to facilitate positioning of a compression tool relative to the first and second compression sleeves. The crossbar portions help ensure that the compression tool is properly aligned to provide adequate engagement of the plurality of ribs with the conduit.

[0018] These and other features and advantages will become apparent by reading the following detailed description and viewing the associated drawings. Various additional aspects will be described in the following description. These aspects may relate to individual features and combinations of features. It should be understood that the foregoing general description and the following detailed description are merely exemplary and illustrative, and are not intended to limit the broad concepts upon which the embodiments disclosed herein are based. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate several aspects of the present disclosure. A brief description of the drawings is as follows:

[0020] Figure 1 A perspective view of an exemplary compression fitting including a connector body and a compression sleeve according to the principles of the present disclosure is shown.

[0021] Figure 2 Shows Figure 1 Side view of a compression fitting.

[0022] Figure 3 Shows Figure 1 End view of a compression fitting.

[0023] Figure 4 A perspective view of a connector body according to the principles of the present disclosure is shown.

[0024] Figure 5 Shows Figure 4 A cross-sectional view of a connector body.

[0025] Figure 6 The present invention is shown in accordance with the principles of the present invention. Figure 1 A perspective view of a press-fit sleeve.

[0026] Figure 7 Shows Figure 1 Cross-sectional view of a compression fitting.

[0027] Figure 8 A fluid conduit according to the principles of the present disclosure is shown. Figure 7 Cross-sectional view of a compression fitting.

[0028] Fig. 9 Shows Figure 8 An enlarged view of a portion of a compression fitting.

[0029] Fig.10 The present invention is shown in accordance with the principles of the present invention. Figure 7 An enlarged view of a portion of a compression fitting showing the compression sleeve prior to connection with the connector body.

[0030] Fig.11 The present invention is shown in accordance with the principles of the present invention. Figure 7 An enlarged view of a portion of a compression fitting showing the lip of the compression sleeve engaging the protrusion of the connector body during attachment of the compression sleeve to the connector body.

[0031] Fig.12 The present invention is shown in accordance with the principles of the present invention. Figure 7 An enlarged view of a portion of a compression fitting showing a lip of a compression sleeve received in a channel defined by a connector body to form a snap connection of the compression sleeve to the connector body.

[0032] Fig.13 Another exemplary compression fitting having a connector body formed of clear plastic in accordance with the principles of the present disclosure is shown.

[0033] Figures 14 to 17 Yet another exemplary compression fitting having a connector body according to the principles of the present disclosure is shown.

[0034] Figure 18 to Figure 19Another exemplary compression sleeve in accordance with principles of the present disclosure is shown including a locating rib or portion that is integrally or monolithically formed with a body thereof.

[0035] Figure 20 to Figure 21 Another exemplary compression sleeve in accordance with principles of the present disclosure is shown including a flange member integrally or monolithically formed with a body thereof.

[0036] Fig. 22 is a perspective view illustrating another example of a compression fitting according to the principles of the present disclosure.

[0037] Fig.23 yes Fig. 22 A cross-sectional perspective view of a compression fitting.

[0038] Fig.24 yes Fig. 22 Cross-sectional view of a compression fitting.

[0039] Fig.25 yes Fig.24 An enlarged portion of the cross section.

[0040] Fig.26 is included in Fig. 22 A perspective view of a compression sleeve in a compression fitting of FIG.

[0041] Fig. 27 yes Fig.26 A cross-sectional perspective view of a press-fit sleeve.

[0042] Fig.28 yes Fig.26 Cross section of the press-fit sleeve.

[0043] Fig.29 yes Fig.28 An enlarged portion of the cross section.

[0044] Fig.30 is formed Fig.26 A flowchart of an exemplary process for fitting a press-fit sleeve and installing it on a connector body, the connector body also including Fig. 22 compression fitting.

[0045] Fig. 30A Shown included in Fig.30 The first step in the process.

[0046] Fig. 30B Shown included in Fig.30 The second step in the process.

[0047] Fig. 30C Shown included in Fig.30 The third step in the process.

[0048] Fig.30D Shown included in Fig.30 The fourth step in the process.

[0049] Fig.30E Shown included in Fig.30 The fifth step in the process.

[0050] Fig.31 is formed Fig.26 Flowchart of another exemplary process for press-fitting a sleeve.

[0051] Fig.32 is a cross-sectional view of a portion of another press-fit sleeve having locating ribs.

[0052] Fig.33 yes Fig.26 A perspective view of a press-fit sleeve is shown.

[0053] Fig.34 yes Fig. 22 A perspective view of a compression fitting is shown.

[0054] Fig.35 is a perspective view of a compression fitting attached to a threaded pipe connector. DETAILED DESCRIPTION

[0055] The present application relates to compression fittings or crimping fittings for connecting conduits (e.g., PEX pipes, such as PEX a, PEX b, PEX c, PERT, etc.). These fittings are configured to provide a seal with the end of the conduit to produce a substantially waterproof connection. These compression fittings can be used with fluid conduits of different diameters, including fluid conduits with a diameter less than 0.25 inches to fluid conduits with a diameter greater than 2 inches or greater. The compression fittings are manufactured in accordance with ASTM F3347 or F3348 standards. Reference is made to U.S. Provisional Patent Application No. 3347-3348 ...

[0056] Figures 1 to 3 An exemplary compression fitting 100 in accordance with the principles of the present invention is shown. The compression fitting 100 includes a connector body 102, a first compression sleeve 104, and a second compression sleeve 106.

[0057] The compression fitting 100 can be made into various configurations and sizes designed to handle various fluid applications. For example, the compression fitting 100 can include a straight-through connector body or coupling, an elbow connector body or coupling, a T-shaped connector body or coupling, a flow-blocking blind-end connector body, a connector body configured to receive fluid conduits of different diameters, an angle connector body, a multi-way (or 4-way) connector body, a Y-shaped connector body, a TY-shaped connector body, other types of connector bodies, or combinations of connector bodies.

[0058] The connector body 102 of the compression fitting 100 includes a one-piece / integral body made of plastic or other polymeric material suitable for the intended application, such as polyphenylsulfone (PPSU), although other solutions are possible. In other examples, the connector body 102 can be made of polysulfone (PSU) or polyphenylene sulfide (PPS) or other similar polymeric materials. In certain examples, without departing from the scope of the present disclosure, the connector body 102 can be made of a forged or cast metal material, such as brass, stainless steel, bronze, copper alloy, steel alloy, etc.

[0059] The connector body 102 has a first end 108 , an opposing second end 110 , and a passage 112 (eg, a bore) extending through the first and second ends 108 , 110 along a longitudinal axis X of the connector body to place the first and second ends 108 , 110 in fluid communication.

[0060] Go to Figures 4 to 5 , the connector body 102 may include a first connection section 114 at the first end 108 of the connector body 102 and a second connection section 116 at the second end 110 of the connector body 102. The first connection section 114 and the second connection section 116 may be cylindrical portions that extend in opposite directions along the longitudinal axis X relative to a central portion 118 or middle portion of the connector body 102. The first connection section 114 and the second connection section 116 are sized and configured to be received within the channels 120, 122 of respective first and second conduits 124, 126 (e.g., pipes, tubes) (see Figure 8 ), to form an inner diameter ID seal with the first conduit 124 and the second conduit 126. The first compression sleeve 104 is configured to be received on the first connection section 114, and the second compression sleeve 106 is configured to be received on the second connection section 116. The first compression sleeve 104 and the second compression sleeve 106 are pre-installed on the connector body 102 for easy installation. The first compression sleeve 104 and the second compression sleeve 106 are deformable and configured to be engaged and deformed by a press tool or a crimp tool to connect the conduit to the compression fitting 100.

[0061] The first connection section 114 and the second connection section 116 define an inner surface (e.g., an interior surface) 128 and an outer surface 130 (e.g., an exterior surface). In some examples, the inner surface 128 of the first connection section 114 and the second connection section 116 of the connector body 102 includes a tapered lead-in portion 132 at the first end 108 and the second end 110 of the channel 112 (see also Figure 8 ) to allow fluid to flow easily therethrough, or in some applications, to facilitate insertion of a bushing (not shown).

[0062] In some examples, the first connection section 114 and the second connection section 116 may include a nipple portion configured to be received in the corresponding first conduit 124 and the second conduit 126. The outer surface 130 of the first connection section 114 and the second connection section 116 may have a surface portion 134, and the size of the surface portion 134 is designed to engage with the inner wall 136 of the first conduit 124 and the second conduit 126, so as to clamp the first conduit 124 and the second conduit 126 or otherwise engage with it. The surface portion 134 may include a barb portion. In some examples, the barb portion has a plurality of ribs 138 on the outer surface 130 of the connector body 102 to help connect the connector body to the corresponding first conduit and the second conduit. The configuration of the barb portion may be specified by ASTM F3347 or F3348 or other suitable specifications or standards. The first connection section 114 and the second connection section 116 each include two surface portions 134 on the outer surface 130, and the two surface portions 134 respectively define an annular recessed area 140 therebetween.

[0063] The connector body 102 may also include a circumferential rib 142 extending from the connector body 102 between the first connection section 114 and the second connection section 116. The circumferential rib 142 is integrally formed with the connector body 102 as a single piece or unit. The circumferential rib 142 may be located at a central portion 118 of the connector body 102 between the first connection section 114 and the second connection section 116. The circumferential rib 142 may include a handle 144 and a crossbar 146, which together form a T-shaped positioning rib 148 extending along opposite sides of the connector body 102, although other solutions are possible. In some examples, a plurality of positioning ribs may be positioned on the connector body 102 at opposite sides of the connector body 102, although other solutions are possible. In the example shown, two T-shaped positioning ribs 148 are positioned on opposite sides of the connector body 102. The crossbar 146 may extend longitudinally parallel to the connector body 102 and extend perpendicular to the handle 144. The crossbar portion 146 of the locating rib 148 has or carries a contact or engagement member 150 that serves as an alignment feature for a press fit tool or crimping tool. Although two T-shaped locating ribs 148 are depicted, it should be understood that any number of locating ribs may be provided and that the locating ribs may be provided in a variety of configurations. In some examples, the connector body 102 may include four, six, eight, etc. locating ribs.

[0064] Still refer to Figure 5, the connector body 102 may also include a circumferential wall or portion 152 (e.g., a protrusion, a flange) radially protruding from the outer surface 130 of the connector body 102 on opposite sides of the shank 144 of the T-shaped locating rib 148. The circumferential wall 152 is formed with an inclined surface 154 (e.g., a ramp). The circumferential walls 152 each include a first engagement surface 156 and an opposing second engagement surface 158. The inclined surface 154 of the circumferential wall 152 is inclined in a direction from the first engagement surface 156 toward the second engagement surface 158. The circumferential wall 152 may be formed integrally with the connector body 102 as a single piece or unit. The shank 144 of the locating rib 148 and the circumferential wall 152 of the connector body 102 together define a channel 160 on opposite sides of the locating rib 148. The crossbar 146 may extend above the channel 160 and above the circumferential wall 152 of the connector body 102, but alternatives are possible.

[0065] Go to Figure 6 , depicting a press-fit sleeve 104. It is understood that the first press-fit sleeve 104 and the second press-fit sleeve 106 are identical. Therefore, a detailed description of one press-fit sleeve is sufficient. The first press-fit sleeve 104 can be formed of a metal material, such as stainless steel, copper, aluminum or other suitable metal materials.

[0066] The first compression sleeve 104 includes a distal end 162 and an opposing proximal end 164. The distal end 162 of the first compression sleeve 104 includes a flange 166, and the proximal end 164 of the first compression sleeve 104 includes a lip 168. The flange 166 at the distal end 162 of the first compression sleeve 104 includes a chamfered edge 170 (e.g., a tapered lead-in). The lip 168 at the proximal end 164 of the first compression sleeve 104 includes a curved edge 172. The first compression sleeve 104 also defines a hole 174 for viewing therethrough.

[0067] Go to Figure 7 , the first and second compression sleeves 104, 106 are shown connected to the connector body 102. The first and second compression sleeves 104, 106 and the connector body 102 together define respective first and second passages 176, 178 for receiving the first and second conduits 124, 126 (see Figures 8 to 9 ). When the first and second conduits 124, 126 are fully inserted into the respective first and second passages 176, 178, the end faces 180, 182 of the first and second conduits 124, 126 may abut the first engagement surfaces 156 of the respective circumferential walls 152. The apertures 174 of the first and second compression sleeves 104, 106 allow the installer to visually see where the conduits are located during insertion.

[0068] Figures 10 to 121. The assembly of the first press-fit sleeve 104 with the connector body 102 is shown. The first press-fit sleeve 104 moves relative to the connector body 102 along the longitudinal axis X. The curved edge 172 of the lip 168 of the first press-fit sleeve 104 is configured to engage the inclined surface 154 of the circumferential wall 152. The inclined surface 154 of the circumferential wall 152 helps guide the first press-fit sleeve 104 on the circumferential wall 152 during assembly. The lip 168 of the first press-fit sleeve 104 can be guided on the inclined surface 154 of the circumferential wall 152 into the channel 160 of the connector body 102 to form a snap-fit ​​connection with the connector body 102. The curved edge 172 of the lip 168 helps prevent the first press-fit sleeve 104 from backing out or being removed from the channel 160.

[0069] When the first and second press-fit sleeves 104, 106 are connected to the connector body 102, the first and second press-fit sleeves 104, 106 and the corresponding first and second connection sections 114, 116 together define passages 176, 178 for respectively receiving the first and second conduits 124, 126. The chamfered edges 170 of the first and second press-fit sleeves 104, 106 are configured to allow the first and second conduits 124, 126 to be easily inserted into the passages 176, 178.

[0070] The contact features 150 of the crossbar portion 146 of the locating rib 148 are configured to engage the outer surfaces 184 of the first and second press-fit sleeves 104, 106 to facilitate a substantially secure connection of the first and second press-fit sleeves 104, 106 to the connector body 102. In other words, the contact features 150 of the crossbar portion 146 help support the first and second press-fit sleeves 104, 106 to the connector body 102.

[0071] The contact member 150 of the locating rib 148 may include an inclined inner guide surface 186 to guide the attachment of the first and second press-fit sleeves 104, 106. That is, the inclined inner guide surface 186 provides a guide surface for the first and second press-fit sleeves 104, 106 such that the inclined inner guide surface 186 engages with the outer surface 184 of the first and second press-fit sleeves 104, 106 to guide the first and second press-fit sleeves 104, 106 when they are received onto the connector body 102. The inclined inner guide surface 186 of the crossbar portion 146 may be configured to face or confront the circumferential wall 152 of the connector body 102. When the first and second press-fit sleeves 104, 106 are attached to the connector body 102, the inclined inner guide surface 186 may extend over a portion of the first and second sleeves 104, 106. The angled inner guide surface 186 may slope from an end 188 of the crossbar portion 146 toward the handle portion 144, although alternatives are possible.

[0072] The crossbar 146 is also configured to facilitate positioning of a crimping tool (not shown) relative to the first and second crimping sleeves 104, 106. That is, the crossbar 146 helps ensure that the crimping tool is properly aligned to provide adequate engagement of the plurality of ribs 138 with the first and second conduits 124, 126. The first and second crimping sleeves 104, 106 may be crimped such that a portion of the first and second crimping sleeves 104, 106 deforms and presses into or engages an outer surface 190, 192 of the respective first and second conduits 124, 126. In this manner, the plurality of ribs 138 are pressed into (e.g., engages into, pierces ((dip))) the inner wall 136 of the respective first and second conduits 124, 126.

[0073] In an embodiment, the principles of the present disclosure may be directed to another exemplary compression fitting 100a, such as Fig.13 As generally shown in FIG. 1 , the compression fitting 100 a may include a connector body 102 a formed from a clear plastic.

[0074] Figures 14 to 17 Yet another exemplary compression fitting 100b, 100c having a connector body according to the principles of the present disclosure is shown.

[0075] like Figure 14 to Figure 15 As shown, the compression fitting 100b may include a connector body 102b and a first compression sleeve 104b and a second compression sleeve 106b. Figure 16 to Figure 17As shown, the compression fitting 100c may include a connector body 102c and a first compression sleeve 104c and a second compression sleeve 106c. The connector bodies 102b, 102c may be formed of a metal material, such as brass (eg Figure 14 to Figure 15 As shown), or may be formed from a polymeric material such as PPSU, PSU or PPS, but other materials are also possible.

[0076] Except for the differences, the connector bodies 102b, 102c have the same basic features as the above-mentioned connector body 102. That is, the connector bodies 102b, 102c can include first connection sections 114b, 114c and second connection sections 116b, 116c, respectively.

[0077] The connector bodies 102b, 102c also define a passage 112 therethrough that places the first end 108 of the respective first connection segments 114b, 114c and the second end 110 of the second connection segments 116b, 116c in fluid communication with each other. The first connection segments 114b, 114c and the second connection segments 116b, 116c may include a plurality of ribs 138 (i.e., barbed portions) defined along them. The compression sleeves 104b, 104c, 106b, 106c may be received along the plurality of ribs 138 of the respective connector bodies 102b, 102c. For example, the first compression sleeve 104b, 104c and the second compression sleeve 106b, 106c can be compressed or crimped to engage the catheter positioned between the first compression sleeve 104b, 104c and the second compression sleeve 106b, 106c and the plurality of ribs 138 of the corresponding connector body 102b, 102c. In this way, the first compression sleeve 104b, 104c and the second compression sleeve 106b, 106c are configured to deform when compressed or crimped to engage with the outer surface of the catheter. When crimped, the plurality of ribs 138 of the corresponding connector body 102b, 102c can penetrate or otherwise engage the inner surface of the catheter to form an inner diameter (ID) seal with the catheter.

[0078] The connector bodies 102b, 102c may include a channel 160 (e.g., a groove) defined along an outer surface thereof similar to the connector body 102. The first and second press-fit sleeves 104b, 104c, 106b, 106c may each include an end 194 configured to be received within a corresponding channel 160 of the connector bodies 102b, 102c to facilitate connection of the first and second press-fit sleeves 104b, 104c, 106b, 106c to the connector bodies 102b, 102c. The ends 194 of the first and second press-fit sleeves 104b, 104c, 106b, 106c, respectively, may be lips or curved ends, although other arrangements are possible.

[0079] The connector bodies 102b, 102c may also include a circumferential wall or portion (eg, a protrusion, a flange) that at least partially defines a channel in the respective connector body 102b, 102c. Figures 14 to 17 In the illustrated embodiment, the connector bodies 102b, 102c each include an intermediate or central flange 196 and a circumferential wall 152. The circumferential wall 152 may be positioned on opposite sides of the central flange 196, although other arrangements are possible. The intermediate flange 196 and the circumferential wall 152 together define a pair of channels 160 in the respective connector bodies 102b, 102c.

[0080] The ends 194 of the respective first and second press-fit sleeves 104b, 104c, 106b, 106c can engage with the corresponding channels 160 to facilitate connecting the first and second press-fit sleeves 104b, 104c, 106b, 106c to the connector bodies 102b, 102c. This structure allows the respective first and second press-fit sleeves 104b, 104c, 106b, 106c to be directly connected to the connector bodies 102b, 102c (i.e., the respective first and second press-fit sleeves are directly engaged with the connector bodies without any intermediate portions or components).

[0081] The respective first and second press sleeves 104b, 104c, 106b, 106c may also include positioning ribs or portions to help facilitate positioning of a press tool used to press or crimp the press sleeves. Figures 14 to 19 As shown, the compression sleeves 104b, 104c, 106b, 106c may include a locating rib 198a. The locating rib 198a is integrally formed with the body of the respective first and second compression sleeves 104b, 104c, 106b, 106c.

[0082] Go to Figure 18 to Figure 19 The locating ribs 198a may include protrusions along the outer surfaces of the first and second compression sleeves 104b, 104c, 106b, 106c, although other arrangements are possible. Figure 20 to Figure 21 The locating rib 198b is shown to include a cross-sectional L-shaped portion formed at the end of the first and second compression sleeves 104b, 104c, 106b, 106c, respectively, although other arrangements are possible. The cross-sectional L-shaped portion of the first and second compression sleeves 104b, 104c, 106b, 106c can include an end 194 configured to engage with a channel 160 defined by the respective connector body 102b, 102c.

[0083] Figures 18 to 21Also shown are one or more openings or holes 174 defined through the bodies of the first and second compression sleeves 104b, 104c, 106b, 106c. The one or more openings 174 allow for viewing of the catheter insertion compression fitting.

[0084] Figures 22 to 30 Another embodiment of a compression fitting 200 in accordance with the principles of the present disclosure is shown. The compression fitting 200 includes a connector body 202 and a compression sleeve 204. The compression fitting 200 can be made in a variety of configurations and sizes designed to handle a variety of fluid applications as described above in conjunction with the compression fitting 100. The connector body 202 of the compression fitting 200 includes a one-piece / unitary body made of plastic or other polymeric material, such as polyphenylsulfone (PPSU), although other solutions are possible.

[0085] The connector body 202 has a first end 208, an opposite second end 210, and a passage 212 (e.g., a bore) extending through the first end 208 and the second end 210 along the longitudinal axis L of the connector body 202, so that the first end 208 and the second end 210 are in fluid communication. The connector body 202 may include a connection section 214 at the first end 208 of the connector body 102 and a retaining portion 218 at the second end 210. In some embodiments, the connector body 202 may include two or more connection sections. The connection section 214 may be cylindrical and extend along the longitudinal axis L. The size and configuration of the connection section 214 are configured to be received in the passage of a corresponding conduit (e.g., a pipe, a pipeline) to form an inner diameter ID seal with the conduit. The compression sleeve 204 is configured to be received on the connection section 214. The compression sleeve 204 is pre-installed on the connector body 202 for easy installation. The compression sleeve 204 is deformable and is configured to be engaged by and deformed thereby by a compression tool or crimping tool to connect a conduit to the compression fitting 200 .

[0086] The connection section 214 defines an inner surface (e.g., interior surface) 228 and an outer surface 230 (e.g., exterior surface). In some examples, the inner surface 228 of the connection section 214 of the connector body 202 includes a tapered lead-in 232 at the first end 208 of the passage 212 to allow fluid to easily flow through the passage, or in some applications, to easily insert a bushing (not shown).

[0087] The outer surface 230 of the connection section 214 can have a plurality of surface portions 234, the dimensions of which are designed to engage with the inner wall of the conduit so as to facilitate gripping the conduit or otherwise engaging with the conduit. The surface portions 234 on the outer surface 230 of the connection section 214 can include barb portions. In some examples, the barb portions include a plurality of ribs 238 on the outer surface 230 of the connector body 202 to help couple the connector body 202 to a corresponding conduit. In the example shown, the connection section 214 includes two surface portions 234 on the outer surface 230, each of which defines an annular recessed area 240 therebetween.

[0088] The connector body 202 may also include circumferential walls or portions 252, 253 (e.g., protrusions, flanges) radially protruding from its outer surface 230. One of the circumferential walls 252 forms an inclined surface 254 (e.g., a ramp). The circumferential wall 252 also includes an engagement surface 256 opposite the inclined surface 254. The inclined surface 254 of the circumferential wall 252 is inclined in a direction from the engagement surface 256. The other of the circumferential walls 253 is axially spaced from the circumferential wall 252 to axially define a channel 260 between the circumferential wall 253 and the circumferential wall 252. The circumferential walls 252, 253 may be integrally formed with the connector body 202 as a single piece or unit.

[0089] The compression sleeve 204 may be formed of a metal material, such as stainless steel or other metal materials, such as copper, aluminum or other suitable metal materials. The compression sleeve 204 includes a distal (e.g., first) end 262 and an opposite proximal (e.g., second) end 264. Fig.26 and Fig. 27 As shown, the distal end 262 of the press-fit sleeve 204 includes a flange 266, and the proximal end 264 of the press-fit sleeve 204 includes a lip 268. The flange 266 at the distal end 262 of the press-fit sleeve 204 includes a curved edge 270 (e.g., a tapered lead-in). The lip 268 at the proximal end 264 of the press-fit sleeve 204 includes a chamfered edge 272. The chamfered surface can have an angle greater than 10 degrees, such as greater than 15 degrees, greater than 20 degrees, greater than 25 degrees, greater than 30 degrees, greater than 40 degrees, greater than 45 degrees, etc. When the press-fit sleeve 204 is coupled to the connector body, the lip 268 of the press-fit sleeve 204 extends into the channel 260 between the circumferential walls 252, 253 to facilitate attachment of the connector body 202 and the press-fit sleeve 204. The compression sleeve 204 also includes an aperture 274 defined therein to allow viewing through the aperture 27 such that a catheter inserted into the connector is visible.

[0090] exist Figure 22 to Figure 25, the compression sleeve 104 is shown connected to the connector body 102. The compression sleeve 204 and the connector body 202 together define a passage 276 for receiving a conduit. When the conduit is fully inserted into the passage 276, the end face of the conduit can abut the engagement surface 256 of the circumferential wall 252. The hole 274 of the compression sleeve 204 allows the installer to visually see where the conduit is located during insertion, i.e., whether the conduit has been inserted into the passage 276 enough.

[0091] like Figures 28 to 30 As shown, the compression sleeve 204 may also include a positioning rib 298 or portion to help position a compression tool used to compress or crimp the compression sleeve. The positioning rib 298 is integrally formed with the body of the compression sleeve 204. The positioning rib 298 and the flange 266 provide a crimping area therebetween that is configured to receive a crimping tool.

[0092] like Fig.29 and Fig.30 As shown, the positioning rib 298 includes a first rib portion 301 and a second rib portion 302 that overlap. Fig.29 As shown, the first rib 301 and the second rib 302 of the positioning rib 298 both extend outwardly away from the sleeve body 304 to form a radius 306 that is greater than the radius 308 of the sleeve body 304. The flange 266 at the distal end 262 of the press-fit sleeve 204 illustratively has a radius 310 that is greater than the radius 308 of the sleeve body 304 but less than the radius 306 of the positioning rib 298. Fig.26 and Fig. 27 As shown, the locating rib 298 and the flange 266 axially define a crimping area 312 therebetween that is used to assist in positioning the crimping tool.

[0093] In some embodiments, the radius 306 of the locating rib 298 is at least 5% greater than the radius 308 of the sleeve body 304. In some embodiments, the radius 306 of the locating rib 298 is at least 6% greater than the radius 308 of the sleeve body 304. In some embodiments, the radius 306 of the locating rib 298 is at least 7% greater than the radius 308 of the sleeve body 304. In some embodiments, the radius 306 of the locating rib 298 is at least 8% greater than the radius 308 of the sleeve body 304. In some embodiments, the radius 306 of the locating rib 298 is at least 9% greater than the radius 308 of the sleeve body 304. In some embodiments, the radius 306 of the locating rib 298 is at least 10% greater than the radius 308 of the sleeve body 304. In some embodiments, the radius 306 of the locating rib 298 is at least 11% greater than the radius 308 of the sleeve body 304. In some embodiments, the radius 306 of the locating rib 298 is at least 12% greater than the radius 308 of the sleeve body 304. In some embodiments, the radius 306 of the locating rib 298 is at least 13% greater than the radius 308 of the sleeve body 304. In some embodiments, the radius 306 of the locating rib 298 is at least 14% greater than the radius 308 of the sleeve body 304. In some embodiments, the radius 306 of the locating rib 298 is at least 15% greater than the radius 308 of the sleeve body 304.

[0094] The first rib 301 and the second rib 302 of the positioning rib 298 are folded over each other when the press-fit sleeve 204 is formed. That is, the first rib 301 and the second rib 302 can overlap to provide a contact area between them. Fig. 27 and Fig.29 As shown, a gap or space 303 is also provided between at least some areas of the ribs 301, 302. The gap 303 extends annularly around the longitudinal axis L. In some embodiments, the gap 303 may be omitted so that the ribs 301, 302 contact each other along their entire radial extent. In other embodiments, such as Fig.32 As shown, the first rib 310 and the second rib 302 may be completely spaced apart from one another such that the gap 303 extends all the way to the curved portion 382 of the locating rib 298 .

[0095] Reference Fig.29 The fully formed positioning rib 298 includes a plurality of exterior surfaces 370, 371, 372, 373, 374 and a plurality of interior surfaces 375, 376. The exterior surface of the positioning rib 298 includes a pair of curved exterior surfaces 370, 371, a pair of radially extending exterior surfaces 372, 373, and a dome-shaped exterior surface 374. The interior surface of the positioning rib 298 includes a first curved interior surface 375 and a second curved interior surface 376.

[0096] The pair of curved outer surfaces 370, 371 are coupled to the relatively straight portion of the sleeve 204 and the transition portion between the straight portion and the rest of the locating rib 298. The pair of radially extending outer surfaces 372, 373 extend outwardly from each corresponding curved outer surface 370, 371 of the locating rib 298. The dome-shaped outer surface 374 interconnects the radially outer ends of the axially extending outer surfaces 372, 373 and defines the outermost portion of the locating rib 298. The dome-shaped outer surface 374 of the locating rib 298 also defines the outermost portion of the entire press-fit sleeve 204, however, in some embodiments, this may not be the case.

[0097] like Fig.29 As shown, the first curved interior surface 375 and the second curved interior surface 376 are convex relative to each other. The first curved interior surface 375 and the second curved interior surface 376 also extend radially outward and converge at the vertex 322 where the first curved interior surface 375 and the second curved interior surface 376 are connected to each other. The first curved interior surface 375 and the second curved interior surface 376 define a gap 303 therebetween.

[0098] The press-fit sleeve 204 can be formed to have a continuous structure without seams or joint lines. For example, the structure of the press-fit sleeve 204 transitions from a first straight portion 380 to a first rib 301, which includes one of the curved outer surfaces 370, one of the radially extending outer surfaces 372, and a first curved inner surface 375. The press-fit sleeve 204 then transitions from the first rib 301 to a curved or deformed portion 382 including a dome-shaped outer surface 374. The press-fit sleeve 204 then transitions to a second rib 302, which includes another of the radially extending surfaces 373, another of the curved outer surfaces 371, and a second curved inner surface 376. The press-fit sleeve 204 transitions from the second rib 302 to a second straight portion 381. The second straight portion 381 is located at a radial spacing substantially the same as the radial spacing of the first straight portion 380 from the longitudinal axis L. The press-fit sleeve 204 maintains this radial spacing from the longitudinal axis L all the way to the flange 266 .

[0099] like Fig.30 As shown, the first rib 301 and the second rib 302 of the positioning rib 298 each have a thickness 314 that is approximately equal (i.e., within 1%) to each other. Therefore, the cumulative axial thickness 316 of the positioning rib 298 is approximately twice the thickness 314 of the first rib 301 and the second rib 302. The cumulative axial thickness 316 of the positioning rib 298 can also be approximately twice the thickness 318 of the sleeve body 304, so that when the crimping area 312 of the sleeve body 304 is crimped, the positioning rib 298 is sufficiently strengthened. As used herein, the term "approximately" means within 1% of the stated value or ratio.

[0100] In some examples, forming the locating ribs 298 during process 1000 may cause the thickness 314 of the first rib 301 and the second rib 302 to become slightly thinner than the thickness 318 of the sleeve body 304. The cumulative thickness 316 may still be greater than the thickness 318 of the sleeve body 304.

[0101] like Fig.30 As shown, the locating rib 298 is formed to include a radial height 320 from the sleeve body 304. In the illustrative embodiment, the radial height 320 is approximately equal to the cumulative axial thickness 316 of the locating rib 298. As such, as the sleeve body 304 is deformed during the process 1000 to form the ribs 301, 302, the height 320 is minimized to save cost and material usage. In some examples, the height 320 can be greater than the thickness 318 of the sleeve body 304.

[0102] The press-fit sleeve 204 may be formed as Figures 30 to 30E The compression joint 200 shown in FIG. 1 is formed as part of a process 1000. The process 1000 begins at step 1002 and includes forming a flat disk 1102, such as Fig.30 and Fig. 30A As shown, the press-fit sleeve 204 is formed from the flat disk. The flat disk 1102 may initially be formed from a sheet of metal material that is trimmed or cut to provide the flat disk 1102. The flat disk 1102 may have a generally circular shape, however, any suitable shape such as an oval, rectangular, square, etc. may be used in the process 1000.

[0103] Process 1000 may include: Fig.30 and Fig. 30B The planar disc 1102 is shown forming a cup-shaped sleeve preform 1104 in step 1004. The cup-shaped sleeve preform 1104 may be formed by deep drawing the planar disc 1102 into a die or mandrel (not shown) to form the cup-shaped sleeve preform 1104 having a bottom wall 1103 and a side wall 1105. In some embodiments, another suitable process for forming the cup-shaped sleeve preform 1104 may be used, such as including machining.

[0104] like Fig.30 and Fig. 30CAs shown, process 1000 may also include step 1006 of forming flange 266 in cup-shaped sleeve preform 1104. Flange 266 is formed using a flaring mandrel that engages and expands the end of sleeve 1104. In an exemplary embodiment, step 1006 of forming flange 266 is performed during step 1004 of forming cup-shaped sleeve preform 1104. Flange 266 may be formed separately from step 1004, such as during, before, or after step 1004, step 1008, and / or step 1010 described below.

[0105] like Fig.30 and Fig.30D As shown, the process 1000 may include a step 1008 of forming a positioning rib 298 in the side wall 1105 of the cup-shaped sleeve preform 1104. The positioning rib 298 can be formed using a beading process. During step 1008, the side wall 1105 of the cup-shaped sleeve preform 1104 is bent or deformed to form two ribs 301, 302 that annularly surround the longitudinal axis L of the press-fit sleeve 204. This deformation also forms an annular groove 303 defined by the inner surface of the press-fit sleeve 204 facing the longitudinal axis L. For example, a mandrel can be used to engage with the side wall 1105 of the cup-shaped sleeve preform 1104 to fold or deform a portion of the side wall 1105 when the end of the cup-shaped sleeve preform 1104 is compressed to form a folded portion or bead that defines the positioning rib 298. In some examples, the locating ribs 298 may be formed in a separate mold or step from the mold used in step 1004, however, in other embodiments, the locating ribs 298 may be formed during step 1004 as the cup-shaped sleeve preform 1104 is formed. The locating ribs 298 may be formed using alternative processes, such as curing, roll beading, or other suitable processes without departing from the scope of the present disclosure.

[0106] like Fig.30 and Fig.30E As shown, the process 1000 may also include a step 1010 of forming an aperture 1108 in the bottom wall 1103 of the cup-shaped sleeve preform 1104. The step 1010 of forming the aperture 1108 may provide the lip 268 and the chamfered surface 272 when the press-fit sleeve 204 is fully formed after the process 1000. Alternatively, the lip 268 and the chamfered surface 272 may be formed in a step separate from the step 1010 of the process 1000. In an exemplary embodiment, the aperture 1108 is formed separately from the steps 1004 and 1006, however, in other embodiments, the aperture 1108 may be formed during the steps 1004 and / or 1006 when the cup-shaped sleeve preform 1104 is formed. The aperture 1108 may be formed by machining, stamping, laser cutting, etching, etc.

[0107] like Fig.30 As shown, once the compression sleeve 204 is formed during process 1000, process 1000 may also include step 1012 of coupling the compression sleeve 204 to the connector body. Figures 10 to 12 Similar to what is shown, the compression sleeve 204 may be coupled to a connector body (ie, 102 , 202 ) by inserting the connector body into the compression sleeve 204 .

[0108] Fig.31 Another process 1200 for forming a press-fit sleeve 204 is shown in FIG. Process 1200 includes a step 1202 of selecting a conduit for use in forming the press-fit sleeve 204. Step 1202 includes selecting a desired outer diameter and inner diameter of the conduit. Depending on the number of press-fit sleeves 204 that need to be formed from the conduit, step 1202 may include selecting a length of the conduit. In an exemplary embodiment, the conduit is a metal conduit and is seamless. The metal conduit may be deformed to form the features of the press-fit sleeve 204 as described below.

[0109] The process 1200 also includes a step 1204 of forming a locating rib 298 in the conduit. Step 1204 can include measuring a distance from the end of the conduit and forming the locating rib 298 at a distance from the end so that once the press-fit sleeve 204 is fully formed, the locating rib 298 is correctly positioned. The step of forming the locating rib 298 can include forming a plurality of locating ribs 298 in the conduit. Each locating rib 298 formed in the conduit will correspond to a separate press-fit sleeve 204 that is trimmed from the conduit in a subsequent step of the process 1200.

[0110] The process 1200 also includes a step 1206 of forming a lip 268 at the proximal end 264 of the compression sleeve 204. Step 1206 can include deforming a portion of the catheter inwardly to form the lip 268. The catheter can be sized to have a length such that the lip 268 is formed at the end of the catheter. Alternatively, the catheter can be cut during step 1206 to separate the compression sleeve 204 from the rest of the catheter. In this case, in step 1204, each lip 269 can be formed between two adjacent positioning ribs 298 formed in the catheter. In some embodiments, the process 1200 can alternate between sequentially forming one positioning rib 298 and one lip 268.

[0111] Process 1200 also includes step 1208 of cutting the catheter into a desired component length. The desired component length corresponds to the desired length of the press-fit sleeve 204 after all features have been formed in the press-fit sleeve 204. As previously described, step 1208 may be performed during step 1206 of forming the lip 268, or may be performed after the lip 268 is formed.

[0112] Process 1200 also includes step 1210 of forming a flared flange 266 at the distal end of press-fit sleeve 204. Flange 266 may be formed using a flaring mandrel that engages the end of sleeve 204 opposite lip 268 and expands the end.

[0113] The process 1200 also includes a step 1212 of performing a finishing operation on the press-fit sleeve 204. Some exemplary finishing operations include deburring (such as chemical deburring, flip deburring, media deburring, etc.) and polishing (such as media polishing, chemical polishing, mechanical polishing, etc.). Polishing is typically the last step before placing the press-fit sleeve on the connector body 202.

[0114] Figure 33 to Figure 35 Other views of the compression fitting 200 and portions thereof are shown. Fig.35 A compression fitting 200 is shown attached to a threaded pipe connector 201. The threaded pipe connector can be screwed onto the receiving end of a corresponding pipe (not shown). The compression fitting 200 then allows the pipe to be coupled with a conduit that is dimensioned for use with the compression fitting 200.

[0115] From the foregoing detailed description, it will be apparent that modifications and variations can be made without departing from the spirit and scope of the present disclosure.

Claims

1. A compression joint, comprising: a connector body having a first end and an opposite second end, the connector body including a first connection section at the first end and a second connection section at the second end, the connector body including a surface portion on an outer surface of the first connection section and a surface portion on an outer surface of the second connection section, the connector body further comprising a circumferential rib centrally positioned between the first connection section and the second connection section, and a circumferential wall radially projecting from the connector body on opposite sides of the circumferential rib, wherein the circumferential wall and the circumferential rib together define a corresponding channel in the connector body, the circumferential rib and the circumferential wall being integrally formed with the connector body; a first compression sleeve adapted to be received on the first connection section of the connector body; as well as a second press-fit sleeve adapted to be received on the second connection section of the connector body; wherein the first press-fit sleeve and the second press-fit sleeve each include a distal end and a proximal end, and when the first press-fit sleeve and the second press-fit sleeve are attached to the connector body, the corresponding channels of the connector body receive lips of the proximal ends of the first press-fit sleeve and the second press-fit sleeve to form a snap-fit ​​connection with the first press-fit sleeve and the second press-fit sleeve; wherein the circumferential rib is configured to engage with outer surfaces of the first press-fit sleeve and the second press-fit sleeve to facilitate a secure connection with the connector body; and The circumferential rib is configured to facilitate positioning of a pressing tool relative to the first pressing sleeve and the second pressing sleeve to ensure correct alignment of the pressing tool.

2. The compression fitting according to claim 1, wherein: The first connection section and the second connection section each include a fitting portion, wherein the fitting portion includes a barb portion having a plurality of ribs to facilitate coupling the connector body to a corresponding conduit.

3. The compression fitting according to claim 1, wherein: The circumferential rib includes a shank portion and a crossbar portion that together form a T-shaped rib extending along opposite sides of the connector body.

4. The compression fitting according to claim 3, wherein: The crossbar portion extends parallel to the longitudinal direction of the connector body and perpendicular to the handle portion.

5. The compression fitting according to claim 3, wherein: The crossbar portion of the circumferential rib carries a contact or engagement member that serves as an alignment feature for a press or crimp tool.

6. The compression fitting according to claim 1, wherein: The circumferential walls each include a slope surface that is inclined in a direction from the corresponding first engaging surface toward the second engaging surface of the circumferential wall.

7. The compression fitting according to claim 1, wherein: The distal ends of the first and second press-fit sleeves include flanges having chamfered edges, and the proximal ends of the first and second press-fit sleeves include lips having curved edges.

8. The compression fitting according to claim 6, wherein: When the first press-fit sleeve and the second press-fit sleeve are assembled to the connector body, the curved edge of the lip engages with the slope of the circumferential wall to guide the first press-fit sleeve and the second press-fit sleeve on the circumferential wall into the corresponding channels of the connector body to form a snap-fit ​​connection with the connector body.

9. The compression fitting according to claim 6, wherein: When the first press-fit sleeve and the second press-fit sleeve are connected to the connector body, the first press-fit sleeve and the second press-fit sleeve and the corresponding first connection section and the second connection section together define a channel for receiving the corresponding first conduit and the second conduit; wherein the chamfered edges of the first press-fit sleeve and the second press-fit sleeve allow the first conduit and the second conduit to be easily inserted into the channel.

10. The compression fitting according to claim 9, wherein: The first and second compression sleeves each define an aperture for viewing the position of the first and second catheters through the aperture during insertion.

11. The compression fitting according to claim 1, wherein: The connector body is formed from a transparent polymeric material.

12. The compression fitting of claim 1, wherein: The first press-fit sleeve and the second press-fit sleeve each include a sleeve body having a positioning rib integrally formed therewith to facilitate positioning of a press-fit tool.

13. The compression fitting according to claim 12, wherein: The positioning rib of each of the first and second press-fit sleeves includes a cross-sectional L-shaped portion formed at an end of the corresponding first and second press-fit sleeves.

14. A compression joint comprising: a connector body having a connection section including a plurality of barbs and a retaining section having a pair of circumferential walls defining a channel therebetween; as well as a compression sleeve adapted to be received over the connecting section of the connector body and to be coupled to the retaining section; wherein the press-fit sleeve includes a distal end and a proximal end, and when the press-fit sleeve is attached to the connector body, the channel of the connector body receives a lip of the proximal end of the press-fit sleeve to form a snap-fit ​​connection with the press-fit sleeve; Wherein, the press-fit sleeve further comprises a sleeve body, a flange forming the distal end of the press-fit sleeve, and a positioning rib formed integrally with the sleeve body between the proximal end and the distal end of the press-fit sleeve; and The positioning rib and the flange axially define a crimping area therebetween to facilitate positioning of a crimping tool relative to the crimping sleeve to ensure proper alignment of the crimping tool relative to the plurality of barbs on the connecting section of the connector body.

15. The compression fitting according to claim 14, wherein: The locating rib includes overlapping first and second rib portions extending outwardly away from the sleeve body to form a radius greater than a radius of the sleeve body.

16. The compression fitting of claim 14, wherein: The radius of the flange at the distal end of the crimp sleeve is greater than the radius of the sleeve body but smaller than the radius of the locating rib.

17. The compression fitting of claim 15, wherein: A contact area is provided between the overlapping first and second ribs, and wherein the contact area extends along the entire radial extent of the overlapping first and second ribs.

18. The compression fitting of claim 15, wherein: A gap is provided between the overlapping first and second ribs, and wherein the gap extends annularly around a longitudinal axis of the connector body.

19. A method of forming a compression joint, the method comprising: forming a flat disk made of a metallic material; deep drawing the flat disk into a die to form a cup-shaped sleeve preform including a bottom wall and side walls; forming a positioning rib on the side wall of the cup-shaped sleeve preform; forming an orifice in the bottom wall of the cup-shaped sleeve preform; as well as A flange is formed at a distal end of the side wall of the cup-shaped sleeve preform.

20. A method for assembling a joint, the method comprising: selecting a conduit for forming the press-fit sleeve; forming a locating rib in the conduit so that the locating rib is properly positioned when the press-fit sleeve is fully formed; forming a lip at a proximal end of the compression sleeve, wherein a portion of the catheter is deformed inwardly to form the lip; cutting the conduit into desired component lengths; forming a flared flange at the distal end of the press-fit sleeve, wherein the flared flange is formed using a flaring mandrel that engages with and expands the distal end of the press-fit sleeve; and A finishing operation is performed on the press-fit sleeve, wherein the finishing operation includes deburring and polishing.

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