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Title:
FLUID CONNECTION ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2022/265676
Kind Code:
A1
Abstract:
A fluid connection assembly, including a connector body, including a first end, a second end, a first through-bore, a canted coil arranged in the first through-bore, and a first radially outward facing surface including a first groove, a spacer operatively arranged to be removably connected to the connector body, the spacer including a third end engaged with the first groove, a fourth end, a first radially inward facing surface including a flange, a second radially outward facing surface, and at least one radial hole extending from the second radially outward facing surface to the first radially inward facing surface, and an indicator slidably arranged in the at least one radial hole.

Inventors:
SAUSEN KARI ANN (US)
HAGEN KRISTIAN J (US)
ROMUS KIMBERLY (US)
Application Number:
PCT/US2021/072331
Publication Date:
December 22, 2022
Filing Date:
November 10, 2021
Export Citation:
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Assignee:
OETIKER NY INC (US)
International Classes:
F16F1/04; F16L37/084
Foreign References:
US20190063656A12019-02-28
US9677587B22017-06-13
US5082390A1992-01-21
US10738926B22020-08-11
Attorney, Agent or Firm:
VRANJES, Michael Nicholas et al. (US)
Download PDF:
Claims:
CLAIMS

What Is Claimed Is:

1. A fluid connection assembly, comprising: a connector body, including: a first end; a second end; a first through-bore; a canted coil arranged in the first through-bore; and, a first radially outward facing surface comprising a first groove; a spacer operatively arranged to be removably connected to the connector body, the spacer including: a third end engaged with the first groove; a fourth end; a first radially inward facing surface comprising a flange; a second radially outward facing surface; and, at least one radial hole extending from the second radially outward facing surface to the first radially inward facing surface; and, an indicator slidably arranged in the at least one radial hole.

2. The fluid connection assembly as recited in Claim 1, wherein in a partially assembled locked state, the flange engages the second end.

3. The fluid connection assembly as recited in Claim 1, wherein: in a partially assembled locked state, the indicator does not protrude from the second radially outward facing surface; and, in a fully assembled locked state, the indicator protrudes radially outward from the second radially outward facing surface.

4. The fluid connection assembly as recited in Claim 1, wherein the flange is arranged between and spaced apart from the third end and the fourth end.

5. The fluid connection assembly as recited in Claim 1, wherein the at least one radial hole comprises at least one protrusion arranged between the second radially outward facing surface and the first radially inward facing surface.

6. The fluid connection assembly as recited in Claim 5, wherein the indicator comprises: a second radially inward facing surface; a shaft connected to the second radially inward facing surface; and, a head connected to the shaft, wherein the head is operatively arranged to engage the at least one protrusion.

7. The fluid connection assembly as recited in Claim 6, wherein the indicator further comprises at least one arm operatively arranged to bias the indicator radially inward with respect to the spacer.

8. The fluid connection assembly as recited in Claim 6, wherein the indicator further comprises a tab extending axially therefrom, the tab operatively arranged to bias the indicator radially inward with respect to the spacer.

9. The fluid connection assembly as recited in Claim 8, wherein the indicator comprises an axial hole arranged therein, and the tab is arranged in the axial hole.

10. The fluid connection assembly as recited in Claim 8, wherein: the spacer further comprises an axial hole extending from the fourth end to the at least one radial hole; and, the tab engages the axial hole.

11. The fluid connection assembly as recited in Claim 6, wherein in the partially assembled locked state, the second radially inward facing surface protrudes radially inward from the first radially inward facing surface.

12. The fluid connection assembly as recited in Claim 1, wherein the spacer comprises a first section and a second section hingedly connected to the first section.

14. The fluid connection assembly as recited in Claim 1, further comprising a tube including a shoulder, wherein in a fully assembled locked state the shoulder engages the flange.

15. A fluid connection assembly, comprising: a connector body, including: a first end; a second end; a first through-bore; a canted coil arranged in the first through-bore; and, a first radially outward facing surface comprising a first groove; a spacer operatively arranged to be removably connected to the connector body, the spacer including: a first section; a second section pivotably connected to the first section; a third end engaged with the first groove; a fourth end; a first radially inward facing surface comprising a flange; a second radially outward facing surface; and, a radial hole extending from the second radially outward facing surface to the first radially inward facing surface; and, an indicator slidably arranged in the radial hole; wherein: in a partially assembled locked state, the indicator does not protrude from the second radially outward facing surface; and, in a fully assembled locked state, the indicator protrudes radially outward from the second radially outward facing surface.

16. The fluid connection assembly as recited in Claim 15, wherein the radial hole comprises at least one protrusion arranged between the second radially outward facing surface and the first radially inward facing surface.

17. The fluid connection assembly as recited in Claim 16, wherein the indicator comprises: a second radially inward facing surface; a shaft connected to the second radially inward facing surface; and, a head connected to the shaft, wherein the head is operatively arranged to engage the at least one protrusion.

18. The fluid connection assembly as recited in Claim 17, wherein the indicator further comprises an elastically deformable arm operatively arranged to bias the indicator radially inward with respect to the spacer.

19. The fluid connection assembly as recited in Claim 17, wherein the indicator further comprises an elastically deformable tab extending axially therefrom, the tab operatively arranged to bias the indicator radially inward with respect to the spacer.

20. The fluid connection assembly as recited in Claim 19, wherein: the spacer further comprises an axial hole extending from the fourth end to the radial hole; and, the tab engages the axial hole.

Description:
FLUID CONNECTION ASSEMBLY CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit under Articles 4 and 8 of the Stockholm Act of the Paris Convention for the Protection of Industrial Property of International Patent Application No. PCT/US2021/037386, filed on June 15, 2021, which application claims priority to U.S. Provisional Patent Application No. 63/105,449, filed on October 26, 2020, which applications are hereby incorporated by reference in their entireties.

FIELD

[0002] The present disclosure relates to printing devices, and more particularly, to correcting defects in printing devices, and even more particularly, to a system and method for automatically diagnosing defects in printing devices. BACKGROUND

[0003] Fluid connectors, fluid connections, and fluid connection assemblies are integral components for many applications, and especially for automotive applications. Since an automotive system is made up of various components such as a radiator, transmission, and engine, fluid must be able to travel not only within each component but also between components. An example of fluid traveling between components is the transmission fluid traveling from the transmission to the transmission oil cooler in order to lower the temperature of the transmission fluid. Fluid predominantly moves between components via flexible or rigid hoses which connect to each component by fluid connectors. Such fluid connectors typically include a retaining means such as a retaining clip, retaining ring clip, or snap ring carried on the connector body which is adapted to snap behind a raised shoulder of a tube when the tube is fully inserted into the connector body. However, in order for the fluid connector to properly function, slots or apertures must be machined in the connector body such that the retaining clip can protrude therethrough and engage the tube, which requires extra post-process manufacturing. During the assembly process, installation of the retaining clip onto the connector body is difficult and failure to install the retaining clip properly can jeopardize the structural integrity of the retaining clip. Additionally, the force required to engage the tube into the connector body, and overcome the radial force of the retaining clip, is very large with current designs. Also, since the retaining clips are very thin and small, it is easy to lose them if dropped or misplaced. Furthermore, some connection assembly solutions take a long time to secure and require tools for the assembly process.

[0004] Thus, there has been a long-felt need for a fluid connection assembly including a retaining means that allows for ease of disassembly, eliminates the need for post-process machining, and reduces the insertion force required to assemble the fluid connector.

SUMMARY [0005] According to aspects illustrated herein, there is provided a fluid connection assembly, comprising a connector body, including a first end, a second end, a first through-bore, a canted coil arranged in the first through-bore, and a first radially outward facing surface comprising a first groove, a spacer operatively arranged to be removably connected to the connector body, the spacer including a third end engaged with the first groove, a fourth end, a first radially inward facing surface comprising a flange, a second radially outward facing surface, and at least one radial hole extending from the second radially outward facing surface to the first radially inward facing surface, and an indicator slidably arranged in the at least one radial hole. [0006] In some embodiments, in a partially assembled locked state, the flange engages the second end. In some embodiments, in a partially assembled locked state, the indicator does not protrude from the second radially outward facing surface, and in a fully assembled locked state, the indicator protrudes radially outward from the second radially outward facing surface. In some embodiments, the flange is arranged between and spaced apart from the third end and the fourth end. In some embodiments, the at least one radial hole comprises at least one protrusion arranged between the second radially outward facing surface and the first radially inward facing surface. [0007] In some embodiments, the indicator comprises a second radially inward facing surface, a shaft connected to the second radially inward facing surface, and a head connected to the shaft, wherein the head is operatively arranged to engage the at least one protrusion. In some embodiments, the indicator further comprises at least one arm operatively arranged to bias the indicator radially inward with respect to the spacer. In some embodiments, the indicator further comprises a tab extending axially therefrom, the tab operatively arranged to bias the indicator radially inward with respect to the spacer. In some embodiments, the indicator comprises an axial hole arranged therein, and the tab is arranged in the axial hole. In some embodiments, the spacer further comprises an axial hole extending from the fourth end to the at least one radial hole, and the tab engages the axial hole. In some embodiments, in the partially assembled locked state, the second radially inward facing surface protrudes radially inward from the first radially inward facing surface. In some embodiments, the spacer comprises a first section and a second section hingedly connected to the first section. In some embodiments, the fluid connection assembly further comprises a tube including a shoulder, wherein in a fully assembled locked state the shoulder engages the flange.

[0008] According to aspects illustrated herein, there is provided a fluid connection assembly, comprising a connector body, including a first end, a second end, a first through-bore a canted coil arranged in the first through-bore, and a first radially outward facing surface comprising a first groove, a spacer operatively arranged to be removably connected to the connector body, the spacer including a first section, a second section pivotably connected to the first section, a third end engaged with the first groove, a fourth end, a first radially inward facing surface comprising a flange, a second radially outward facing surface, and a radial hole extending from the second radially outward facing surface to the first radially inward facing surface, and an indicator slidably arranged in the radial hole, wherein in a partially assembled locked state, the indicator does not protrude from the second radially outward facing surface, and in a fully assembled locked state, the indicator protrudes radially outward from the second radially outward facing surface.

[0009] In some embodiments, the radial hole comprises at least one protrusion arranged between the second radially outward facing surface and the first radially inward facing surface. In some embodiments, the indicator comprises a second radially inward facing surface, a shaft connected to the second radially inward facing surface, and a head connected to the shaft, wherein the head is operatively arranged to engage the at least one protrusion. In some embodiments, the indicator further comprises an elastically deformable arm operatively arranged to bias the indicator radially inward with respect to the spacer. In some embodiments, the indicator further comprises an elastically deformable tab extending axially therefrom, the tab operatively arranged to bias the indicator radially inward with respect to the spacer. In some embodiments, the spacer further comprises an axial hole extending from the fourth end to the radial hole, and the tab engages the axial hole. [0010] The present disclosure provides a fluid connection assembly comprising a spacer or standoff or dimensional standoff, connector body, spacer coil, and tube or tube end form. In some embodiments, the spacer may comprise two sections hingedly connected operatively arranged to removably connect to each other. In some embodiments, the spacer may comprise two sections hingedly connected to each other. [0011] The spacer comprises an indicator that clearly verifies the proper connection of the fluid connection assembly. In some embodiments, the spacer comprises two sections with opposing mating halves, or two sections hingedly connected via a living hinge. The spacer comprises a visual and tactile verification.

[0012] In some embodiments, the spacer comprises one or more indicators installed into the spacer body. Prior to installation of the tube, the indicators are flush or radially aligned with the radially outward facing surface of the spacer. The indicator has a tab that acts as a spring. The tab extends axially from the indicator and maintains the indicator in the proper position (flush with the radially outward facing surface of the spacer) when the tube is not installed. In some embodiments, the indicator comprises a contrasting color with respect to the spacer on its axial surfaces and the same color as the spacer on its radially outward facing surface. This aids in the visual verification of the position of the indicator. The spacer is removably connectable to the connector body. When the tube is installed, the flange or shoulder of the tube engages the indicators and displaces them radially outward. This provides a visual indication (the user will see the indicators protruding radially outward from the radially outward facing surface of the spacer) and tactile indication (the force to overcome the spring tab) that the tube is fully installed. If the tube is removed, the tab on the indicator acts like a spring and the indicators will retract to their original position (i.e., not protruding from the radially outward facing surface of the spacer).

[0013] In some embodiments, the spacer comprises one or more indicators installed into the spacer body. Prior to installation of the tube, the indicators are flush with the radially outward facing surface of the spacer. The indicator comprises two fingers that act as springs. These fingers maintain the indicator in the proper position (flush with the radially outward facing surface of the spacer) when the tube is not installed. In some embodiments, the indicator comprises a contrasting color with respect to the spacer on its axial surfaces and the same color as the spacer on its radially outward facing surface. This aids in the visual verification of the position of the indicator. The spacer is removably connectable to the connector body. When the tube is installed, the flange or shoulder of the tube will engage the indicators and displace them radially outward. This provides a visual indication (the user will see the indicators protruding radially outward from the radially outward facing surface of the spacer) and tactile indication (the force to overcome the spring tab) that the tube is fully installed. If the tube is removed, the fingers on the indicator act like springs and the indicators will retract to their original position (i.e., not protruding from the radially outward facing surface of the spacer).

[0014] The fluid connection assembly of the present disclosure provides for a simple installation with a low insertion force during assembly of the tube within the connector body. When the tube needs to be serviced, the spacer is removed. The tube shoulder is pushed to bottom out on the top (or end) of the connector body. This operation inserts the tube into the connector body a set distance to unlock the tube for removal and serviceability. The tube is then pulled out very easily. This solution requires specific standoff and tube end form geometry for visual indication of correct insertion and for quick release of the tube. In addition, the tube may comprise a tapered and/or reduced diameter nose to reduce required insertion forces even further.

[0015] In some embodiments, the spacer is removably connected to the connector body.

The tube is then inserted into the spacer and the connector body until the shoulder abuts against an axial surface within the spacer. The tube is now in a locked position. When the spacer is removed for service, the tube is inserted further into the connector body until the shoulder abuts against an end of the connector body, at which point the spacer, or canted coil spring, releases the tube from its locked state. The tube may then be easily removed from the connector body.

[0016] The present disclosure provides a fluid connection assembly that provides visual indication of connection, improved cleanliness, a reduced insertion force, and easier serviceability. The fluid connection assembly of the present disclosure minimizes axial endplay. [0017] These and other objects, features, and advantages of the present disclosure will become readily apparent upon a review of the following detailed description of the disclosure, in view of the drawings and appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS [0018] Various embodiments are disclosed, by way of example only, with reference to the accompanying schematic drawings in which corresponding reference symbols indicate corresponding parts, in which:

Figure l is a perspective view of a fluid connection assembly, in a fully assembled locked state; Figure 2 is a perspective view of the fluid connection assembly shown in Figure 1, in a partially assembled locked state;

Figure 3 is an exploded perspective view of the fluid connection assembly shown in Figure i;

Figure 4A is a perspective view of the spacer shown in Figure 1, in a locked state; Figure 4B is a perspective view of the spacer shown in Figure 1, in an unlocked state;

Figure 5 is a perspective view of the indicator shown in Figure 1;

Figure 6 is a cross-sectional view of the fluid connection assembly taken generally along line 6-6 in Figure 2;

Figure 7 is a cross-sectional view of the fluid connection assembly taken generally along line 7-7 in Figure 1;

Figure 8 is a cross-sectional view of the fluid connection assembly taken generally along line 8-8 in Figure 2;

Figure 9A is a front perspective view of a spacer;

Figure 9B is a rear perspective view of the spacer shown in figure 9A; Figure 10 is a perspective view of a fluid connection assembly, in a fully assembled locked state;

Figure 11 is a perspective view of the fluid connection assembly shown in Figure 10, in a partially assembled locked state; Figure 12 is an exploded perspective view of the fluid connection assembly shown in Figure 10;

Figure 13 A is a perspective view of the spacer shown in Figure 10, in a locked state;

Figure 13B is a perspective view of the spacer shown in Figure 10, in an unlocked state; Figure 14 is a perspective view of the indicator shown in Figure 10;

Figure 15 is a cross-sectional view of the fluid connection assembly taken generally along line 15-15 in Figure 11;

Figure 16 is a cross-sectional view of the fluid connection assembly taken generally along line 16-16 in Figure 10; and, Figure 17 is a cross-sectional view of the fluid connection assembly taken generally along line 17-17 in Figure 11.

DETAILED DESCRIPTION

[0019] At the outset, it should be appreciated that like drawing numbers on different drawing views identify identical, or functionally similar, structural elements. It is to be understood that the claims are not limited to the disclosed aspects.

[0020] Furthermore, it is understood that this disclosure is not limited to the particular methodology, materials and modifications described and as such may, of course, vary. It is also understood that the terminology used herein is for the purpose of describing particular aspects only, and is not intended to limit the scope of the claims. [0021] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood to one of ordinary skill in the art to which this disclosure pertains. It should be understood that any methods, devices or materials similar or equivalent to those described herein can be used in the practice or testing of the example embodiments. The assembly of the present disclosure could be driven by hydraulics, electronics, pneumatics, and/or springs.

[0022] It should be appreciated that the term “substantially” is synonymous with terms such as “nearly,” “very nearly,” “about,” “approximately,” “around,” “bordering on,” “close to,” “essentially,” “in the neighborhood of,” “in the vicinity of,” etc., and such terms may be used interchangeably as appearing in the specification and claims. It should be appreciated that the term “proximate” is synonymous with terms such as “nearby,” “close,” “adjacent,” “neighboring,” “immediate,” “adjoining,” etc., and such terms may be used interchangeably as appearing in the specification and claims. The term “approximately” is intended to mean values within ten percent of the specified value.

[0023] It should be understood that use of “or” in the present application is with respect to a “non-exclusive” arrangement, unless stated otherwise. For example, when saying that “item x is A or B,” it is understood that this can mean one of the following: (1) item x is only one or the other of A and B; (2) item x is both A and B. Alternately stated, the word “or” is not used to define an “exclusive or” arrangement. For example, an “exclusive or” arrangement for the statement “item x is A or B” would require that x can be only one of A and B. Furthermore, as used herein, “and/or” is intended to mean a grammatical conjunction used to indicate that one or more of the elements or conditions recited may be included or occur. For example, a device comprising a first element, a second element and/or a third element, is intended to be construed as any one of the following structural arrangements: a device comprising a first element; a device comprising a second element; a device comprising a third element; a device comprising a first element and a second element; a device comprising a first element and a third element; a device comprising a first element, a second element and a third element; or, a device comprising a second element and a third element.

[0024] Moreover, as used herein, the phrases “comprises at least one of’ and “comprising at least one of’ in combination with a system or element is intended to mean that the system or element includes one or more of the elements listed after the phrase. For example, a device comprising at least one of: a first element; a second element; and, a third element, is intended to be construed as any one of the following structural arrangements: a device comprising a first element; a device comprising a second element; a device comprising a third element; a device comprising a first element and a second element; a device comprising a first element and a third element; a device comprising a first element, a second element and a third element; or, a device comprising a second element and a third element. A similar interpretation is intended when the phrase “used in at least one of:” is used herein. [0025] It should be appreciated that the term “tube” as used herein is synonymous with hose, pipe, channel, conduit, tube end form, or any other suitable pipe flow used in hydraulics and fluid mechanics. It should further be appreciated that the term “tube” can mean a rigid or flexible conduit of any material suitable for containing and allowing the flow of a gas or a liquid. [0026] “Fully assembled locked state” as used herein refers to the fluid connection assembly and indicates that the tube is fully connected to the connector body and the spacer is fully connected to the connector body to maintain a position of the tube with respect thereto. “Partially assembled locked state” as used herein refers to the fluid connection assembly and indicates that the spacer is fully connected to the connector body but the tube is not arranged in the connector body or the spacer. The spacer may also be described as having a “locked state” or an “unlocked state,” which indicates the state of the spacer independent of the connector body and the tube. [0027] Adverting now to the figures, Figure 1 is a perspective view of fluid connection assembly 10, in a fully assembled locked state. Figure 2 is a perspective view of fluid connection assembly 10, in a partially assembled locked state. Figure 3 is an exploded perspective view of fluid connection assembly 10. Fluid connection assembly 10 generally comprises spacer 20, tube 80, and connector body 40.

[0028] Tube 80 comprises end 82, section 83, bead or shoulder 87, section 89, end 92, and through-bore 94. Through-bore 94 extends through tube 80 from end 82 to end 92. Section 83 is arranged between end 82 and shoulder 87 and comprises radially outward facing surface 84. Radially outward facing surface 84 includes a substantially constant diameter. In some embodiments, radially outward facing surface 84 comprises a frusto-conical taper or curvilinear surface proximate end 82 (see Figure 7). Radially outward facing surface 84 comprises one or more grooves, for example, groove 85A and groove 85B.

[0029] Groove 85A is shallower than groove 85B (i.e., groove 85A comprises a first depth and groove 85B comprises a second depth, the second depth being greater than the first depth). Groove 85A comprises a bottom surface and two side surfaces that extend from radially outward facing surface 84. In some embodiments, the bottom surface is substantially parallel to radially outward facing surface 84. In some embodiments, the bottom surface is non-parallel to radially outward facing surface 84. In some embodiments, the two side surfaces are substantially perpendicular to radially outward facing surface 84. In some embodiments, the two side surfaces are tapered and are non-perpendicular to radially outward facing surface 84. Groove 85A is operatively arranged to engage canted coil 64 in order to lock fluid connection assembly 10 (i.e., in the fully assembled locked state), as will be described in greater detail below. [0030] Groove 85B is axially spaced from groove 85A in axial direction AD2 (i.e., groove

85B is arranged between groove 85A and shoulder 87). Groove 85B comprises a bottom surface and two side surfaces that extend from radially outward facing surface 84. In some embodiments, the bottom surface is substantially parallel to radially outward facing surface 84. In some embodiments, the bottom surface is non-parallel to radially outward facing surface 84. In some embodiments, the two side surfaces are tapered and are non-perpendicular to radially outward facing surface 84. As best shown in Figure 7, the two side surfaces are tapered away from each other in radial direction RD1. In some embodiments, the two side surfaces are substantially perpendicular to radially outward facing surface 84. Groove 85B is operatively arranged to engage canted coil 64 in order to unlock fluid connection assembly 10, as will be described in greater detail below.

[0031] Shoulder 87 is arranged between section 83 and section 89 and comprises surface

86 and surface 88. In some embodiments, surface 86 is an axial surface facing at least partially in axial direction ADI and surface 88 is an axial surface facing at least partially in axial direction AD2. In some embodiments, surface 86 is a frusto-conical surface extending from the radially outward facing surface of shoulder 87 radially inward in axial direction ADI . For example, surface 86 may be a linear conical shape and increases in diameter in axial direction AD2. In some embodiments, surface 86 may comprise a linear portion and a conical or frusto-conical portion. Section 89 is arranged between shoulder 87 and end 92 and comprises radially outward facing surface 90. Radially outward facing surface 90 includes a substantially constant diameter. Tube 80 is arranged to be inserted, specifically with end 82 first, into connector body 40. Tube 80 is inserted into connector body 40 until shoulder 87, specifically surface 86, engages spacer 20, specifically flange 30 (see Figure 7). When surface 86 engages and/or abuts against flange 30, section 83, or radially outward facing surface 84, engages seal 62 and canted coil 64 engages groove 85A. This is the fully assembled locked state of fluid connection assembly 10 wherein tube 80 cannot be displaced in axial direction ADI with respect to connector body 40 (due to the engagement of spacer 20 with shoulder 87) or in axial direction AD2 with respect to connector body 40 (due to the engagement of canted coil 64 with groove 85A). Shoulder 87 is arranged outside of and axially spaced from connector body 40. It should be appreciated that tube 80 may be any traditional tube or tube end form comprising a bead, radially outward extending protrusion or flange, or ramp profile, which extends radially outward and axially on the outer surface of the tube, to secure the tube within the connector body. In some embodiments, tube 80 comprises a metal, a polymer, and/or a ceramic.

[0032] Figure 4A is a perspective view of spacer 20, in a locked state. Figure 4B is a perspective view of spacer 20, in an unlocked state. Figure 5 is a perspective view of indicator 100. Figure 6 is a cross-sectional view of fluid connection assembly 10 taken generally along line 6-6 in Figure 2. Figure 7 is a cross-sectional view of fluid connection assembly 10 taken generally along line 7-7 in Figure 1. Figure 8 is a cross-sectional view of fluid connection assembly 10 taken generally along line 8-8 in Figure 2. The following description should be read in view of Figures 1 8

[0033] Spacer 20 generally comprises section 20A and section 20B. In some embodiments, and as shown, section 20A and section 20B are hingedly connected via hinge 36. In some embodiments, hinge 36 is a living hinge. Spacer 20 comprises end 22, end 24, hole 21 extending from end 22 to end 24, radially outward facing surface 26, radially inward facing surface 28, and radially inward facing surface 32. Radially inward facing surface 28 extends from end 24 to flange 30 and comprises a first diameter. Flange 30 extends from radially inward facing surface 28 to radially inward facing surface 32, specifically groove 34, and comprises a second diameter. In some embodiments, the first diameter is greater than the second diameter. Flange 30 is operatively arranged to engage shoulder 87. Flange 30 forms a first axial surface facing in axial direction AD2 arranged to engage shoulder 87 of tube 80, and a second axial surface facing in axial direction ADI arranged to engage end 44. Radially inward facing surface 32 extends from end 22 to flange 30 and comprises a third diameter. In some embodiments, the third diameter is greater than the first diameter. In some embodiments, radially inward facing surface 32 comprises a frusto-conical surface at end 22 (e.g., a chamfer). Radially inward facing surface 32 comprises groove 34. In some embodiments, groove 34 is arranged immediately adjacent flange 30. In some embodiments, groove 34 is arranged between and spaced apart from flange 30 and end 22. Groove 34 comprises a fourth diameter. In some embodiments the fourth diameter is greater than the third diameter. Radially inward facing surface 32 is operatively arranged to engage groove 54 and groove 34 is operatively arranged to engage radially outward facing surface 52 to connect spacer 20 to connector body 40. In some embodiments, flange 30 engages and/or abuts against end 44 when spacer 20 is fully connected to connector body 40 (see Figure 7).

[0034] Spacer 20 further comprises one or more holes, for example holes 38A-B, extending from radially outward facing surface 26 to radially inward facing surface 28. In some embodiments, holes 38A-B are radial holes arranged between and spaced apart from flange 30 and end 24. As best shown in Figure 6, hole 38A is arranged in section 20A and comprises protrusion 39A and protrusion 39B. Protrusions 39A-B are operatively arranged to engage ledges 108A-B to prevent indicator 100 from being removed from hole 38A in radial direction RD2, as will be described in greater detail below. Likewise, hole 38B is arranged in section 20B and comprises protrusion 39C and protrusion 39D. Protrusions 39C-D are operatively arranged to engage ledges 108A-B to prevent indicator 100 from being removed from hole 38B in radial direction RD2, as will be described in greater detail below.

[0035] In some embodiments, spacer 20 further comprises one or more holes, for example holes 120A-B, extending from end 24 to holes 38A-B, respectively. In some embodiments, holes 120A-B are axial holes spaced radially inward from radially outward facing surface 26 and opening to radially inward facing surface 28. As best shown in Figure 6, a tapered surface extends from hole 120A to hole 38A, the tapered surface increasing in diameter in axial direction ADI, and a tapered surface extends from hole 120A to hole 38A, the tapered surface increasing in diameter in axial direction ADI. Holes 120A-B and their respective tapered surfaces are operatively arranged to engage tab 112, as will be described in greater detail below.

[0036] Indicators 100 are slidably engaged with holes 38A-B. Indicator 100 comprises radially inward facing surface 102, shaft 104, and head 106. Radially inward facing surface 102 is curvilinear and is operatively arranged to engage shoulder 87 to displace indicator 100 radially outward with respect to spacer 20. In some embodiments, radially inward facing surface 102 comprises frusto-conical portion or frusto-conical radially inward facing surface 114, which facilitates a gradual radially outward displacement of indicator 100. Head 106 comprises a width that is greater than the width of shaft 104, thus forming ledges 108A-B on either side thereof. Head 106 comprises radially outward facing surface 107. Indicator 100 further comprises hole 110. In some embodiments, hole 110 extends only partially through indicator 100 in axial direction ADI. Tab 112 extends from the bottom surface of hole 110 in axial direction AD2. The length of tab 112 is greater than the depth of hole 110 and as such, tab 112 extends out of hole 110. In some embodiments, tab 112 is arranged between and spaced apart from the outer perimeter of hole 110 Tab 112 is operatively arranged to engage holes 120A-B and their respective tapered surfaces to prevent removal of indicators 100 from holes 38A-B in a radially outward direction (i.e., radial direction RD1) with respect to spacer 20. Tab 112 also acts as a spring to bias indicator 100 radially inward in radial direction RD2 with respect to spacer 20.

[0037] In the partially assembled locked state, as shown in Figures 2, 6, and 8, tabs 112 are engaged with holes 120A-B, but not their respective tapered surfaces, radially outward facing surface 107 is aligned with and does not protrude from radially outward facing surface 26, and radially inward facing surface 102 protrudes radially inward from radially inward facing surface 28. In the fully assembled locked state, as shown in Figures 1 and 7, tabs 112 are engaged with holes 120A-B and their respective tapered surfaces, radially outward facing surface 107 is arranged radially outward from radially outward facing surface 26 (i.e., indicators 100 protrude in radial direction RD1 from radially outward facing surface 26), and radially inward facing surface 102 is aligned with and/or does not protrude radially inward from radially inward facing surface 28. As shown in Figure 7, the radially outward displacement of indicators 100 forces tabs 112 to elastically displace in radial direction RD2. This elastic displacement biases indicators 100 in radial direction RD2 back to their original position, as shown in Figure 7. Thus, when tube 80 is removed from spacer 20, indicators 100 will automatically displace radially inward from the position shown in Figure 7 (protruding from radially outward facing surface 26) to the position shown in Figure 8 (aligned with/not protruding from radially outward facing surface 26).

[0038] At least one of section 20A and section 20B comprises male connector 116 and the other of section 20A and section 20B comprises female connector 118. As shown, male connector 116 on section 20B is arranged to engage female connector 118 on section 20A such that sections 20A and 20B are fixedly secured, it being understood that in some embodiments male connector 116 can be arranged on section 20A and female connector can be arranged on section 20B.

[0039] In some embodiments, male connector 116 is hook-shaped (in a radially outward direction) and includes groove 116A and projection 116B. Groove 116A is arranged in radially outward facing surface 26. Projection 116B extends generally radially outward in radial direction RD1 from groove 116A. In some embodiments, projection 116B comprises a tapered section near its radially outermost end operatively arranged to allow engagement of projection 116B with female connector 118, specifically, aperture 118A, to occur with greater ease. [0040] Female connector 118 comprises aperture 118A extending radially inward from radially outward facing surface 26. Aperture 118A is operatively arranged to engage projection 116B to lock section 20A to section 20B. Female connector 118 further comprises recess 118B. In some embodiments, recess 118B is arranged in radially inward facing surface 28, flange 30, and/or radially inward facing surface 32 (i.e., extends radially outward therefrom). As section 20A is displaced toward section 20B, female connector 118 engages projection 116B and displaces radially outward in radial direction RD1. Once aperture 118A is aligned with projection 116B, female connector 118 snaps back radially inward, in radial direction RD2, thereby securing section 20A to section 20B. In some embodiments, female connector 118 further comprises circumferential slot 118C operatively arranged to facilitate easier elastic radial displacement of female connector 118.

[0041] To disconnect section 20A and section 20B, at least one of projection 116B and female connector 118 is displaced to disengage projection 116B from hole 118A. For example, projection 116B is displaced radially inward in radial direction RD2, which disengages projection 116B from hole 118A. Female connector 118 can also be displaced radially outward in radial direction RD1, which disengages projection 116B from hole 118A. In some embodiments, a tool such as a flat head screwdriver can be used to cause such displacement and disconnect sections 20 A and 20B.

[0042] Connector body 40 comprises through-bore 41 extending from end 42 to end 44, radially inward facing surface 46, radially inward facing surface 48, groove 50, groove 66, radially outward facing surface 52, groove 54, head 58, and radially outward facing surface 60. Connector body 40 is arranged to be connected to a component that is filled with a fluid or through which fluid flows. For example, connector body 40 may be connected to a refrigeration compressor or a transmission via radially outward facing surface 60, which may comprise external threading. Connector body 40 may be screwed into a threaded hole in the compressor via head 58 (e.g., using a wrench), which is then filled with refrigerant fluid. In some embodiments, head 58 is hexagonal; however, it should be appreciated that head 58 may comprise any geometry suitable for applying torque to connector body 40. Another component in which fluid connector 10, specifically connector body 40, may be installed into is a condenser, evaporator, or pump. It should be appreciated that fluid connection assembly 10 may be used in various other components, assemblies, and subassemblies in which fluid connection is desired.

[0043] Radially outward facing surface 60 may further comprise groove 56. A seal or O- ring is arranged in groove 56 to create a fluid tight seal between connector body 40 and the component it is connected to. Seal 62 is arranged in connector body 40. Specifically, seal 62 is arranged in groove 50. Groove 50 is arranged in radially inward facing surface 48. In some embodiments, seal 62 is an O-ring. Canted coil 64 is arranged in connector body 40. Specifically, canted coil 64 is arranged in groove 66. Groove 66 is arranged in radially inward facing surface 48. In some embodiments, and as shown, radially inward facing surface 46 is a frusto-conical surface that connects generally cylindrical radially inward facing surface 48 with end 44 (e.g., a chamfered surface). Groove 54 is arranged in radially outward facing surface 52. Groove 54 is arranged axially between end 44 and head 58. In some embodiments, groove 54 is arranged immediately adjacent to head 58. Groove 54 is operatively arranged to engage with radially inward facing surface 32 to connect spacer 20 to connector body 40. In some embodiments, a frusto- conical surface connects radially outward facing surface 52 with end 44 (e.g., a chamfered surface). In some embodiments, connector body 40 comprises a metal, a polymer, and/or a ceramic.

[0044] To assemble fluid connection assembly 10, spacer 20 is secured over or onto connector body 40. Specifically, sections 20A and 20B are arranged over connector body 40 such that radially inward facing surface 32 engages groove 54, groove 34 engages radially outward facing surface 52, and flange 30 engages end 44. Once properly positioned, sections 20A-B are “snapped” together, thereby securing spacer 20 to connector body 40 (i.e., the partially assembled locked state). By snapped it is meant that male connector 116 of section 20B is engaged with female connector 118 of section 20A. Tube 80 is then inserted in axial direction ADI, with end 82 first, into spacer 20 and connector body 40. Radially outward facing surface 84 engages seal 62 and section 83 is arranged inside of connector body 40 proximate radially inward facing surface 48. Shoulder 87 is spaced apart from end 44 such that surface 86 abuts against flange 30 and canted coil 64 is engaged with groove 85A. As tube 80 is inserted in axial direction ADI within connector body 40, radially outward facing surface 84 engages canted coil 64 thereby “charging” or rotating it about a center axis of the coil. When groove 85A finally aligns with groove 85A, canted coil 64 is charged or exhibits a wound state and is ovular such that canted coil 64 prevents tube 80 from being displaced in axial direction AD2 with respect to connector body 40. While the now charged canted coil 64 prevents displacement of tube 80 in axial direction AD2 with respect to connector body 40, spacer 20 prevents displacement of tube 80 in axial direction ADI with respect to connector body 40 and fluid connection assembly 10 is in the fully assembled locked state. In addition, in the fully assembled locked state flange 30 engages tube 80, specifically radially outward facing surface 84, which further prevents displacement of tube 80 in radial directions RD1 and RD2 relative to connector body 40.

[0045] To disengage or unlock fluid connection assembly 10, spacer 20 is first removed from connector body 40. As previously described, female connector 118 is disengaged from male connector 116. Sections 20A and 20B can then be separated. Tube 80 is then displaced in axial direction ADI with respect to connector body 40 until surface 86 engages or abuts against end 44 of connector body 40. At this point, groove 85B is aligned with groove 66 and engaged with canted coil 64. Because groove 85B comprises a greater depth than groove 85A, groove 85B, when aligned with groove 66, allows canted coil 64 to unwind or un-charge (i.e., release its tension). Once the tension in canted coil 64 is released, tube 80 can then be removed from connector body 40 (i.e., displaced in axial direction AD2 with respect to connector body 40).

[0046] Figures 9A-B illustrate an alternative spacer or spacer components that can be used alternatively to spacer 20. Figure 9A is a front perspective view of spacer 420. Figure 9B is a rear perspective view of spacer 420. Spacer 420 is substantially similar to spacer 420 except that two spacers 420 are completely removably connectable to each other.

[0047] Spacer 420 comprises end 422, end 424, hole 421 extending from end 422 to end

424, radially outward facing surface 426, radially inward facing surface 428, and radially inward facing surface 432. Radially inward facing surface 428 extends from end 424 to flange 430 and comprises a first diameter. Flange 430 extends from radially inward facing surface 428 to radially inward facing surface 432, specifically groove 434, and comprises a second diameter. In some embodiments, the first diameter is greater than the second diameter. Flange 430 is operatively arranged to engage shoulder 87. Flange 430 forms a first axial surface facing in axial direction AD2 arranged to engage shoulder 87 of tube 80, and a second axial surface facing in axial direction ADI arranged to engage end 44. Radially inward facing surface 432 extends from end 422 to flange 430 and comprises a third diameter. In some embodiments, the third diameter is greater than the first diameter. In some embodiments, radially inward facing surface 432 comprises a firusto- conical surface at end 422 (e.g., a chamfer). Radially inward facing surface 432 comprises groove 434. In some embodiments, groove 434 is arranged immediately adjacent flange 430. In some embodiments, groove 434 is arranged between and spaced apart from flange 430 and end 422. Groove 434 comprises a fourth diameter. In some embodiments the fourth diameter is greater than the third diameter. Radially inward facing surface 432 is operatively arranged to engage groove 54 and groove 434 is operatively arranged to engage radially outward facing surface 52 to connect spacer 420 to connector body 40. In some embodiments, flange 430 engages and/or abuts against end 44 when spacer 420.

[0048] Spacer 420 further comprises hole 438, extending from radially outward facing surface 426 to radially inward facing surface 28. In some embodiments, hole 438 is a radial hole arranged between and spaced apart from flange 430 and end 424. Hole 438 comprises protrusions 439A-B (not shown) operatively arranged to engage ledges 108A-B to prevent indicator 100 from being removed from hole 438 in radial direction RD2, as previously described.

[0049] In some embodiments, spacer 420 further comprises hole 520, extending from end

424 to hole 438, respectively. In some embodiments, hole 520 is an axial hole spaced radially inward from radially outward facing surface 426 and opening to radially inward facing surface 428. A tapered surface extends from hole 520 to hole 438, the tapered surface increasing in diameter in axial direction ADI. Hole 520 and its respective tapered surface are operatively arranged to engage tab 112, as previously described. Indicator 100 operates within hole 438 and hole 520 the same way it operates in hole 38 and hole 120, as previously described. [0050] Spacer 420 further comprises male connector 516 and female connector 518. Male connector 516 on a first spacer 420 is arranged to engage female connector 518 on a second spacer 420, and female connector 518 on the first spacer 420 is arranged to engage male connector 516 on the second spacer 420, such that sections 20A and 20B are fixedly secured.

[0051] In some embodiments, male connector 516 is hook-shaped (in a radially outward direction) and includes groove 516A and projection 516B. Groove 516A is arranged in radially outward facing surface 426. Projection 516B extends generally radially outward in radial direction RD1 from groove 516A. In some embodiments, projection 516B comprises a tapered section near its radially outermost end operatively arranged to allow engagement of projection 516B with female connector 518, specifically, aperture 518A, to occur with greater ease. [0052] Female connector 518 comprises aperture 518A extending radially inward from radially outward facing surface 426. Apertures 518A is operatively arranged to engage projections 516B to lock a first spacer 420 with a second spacer 420. Female connector 518 further comprises recess 518B. In some embodiments, recess 518B is arranged in radially inward facing surface 428, flange 430, and/or radially inward facing surface 432 (i.e., extends radially outward therefrom). As section a first spacer 420 is displaced toward a second spacer 420, female connectors 518 engage projections 516B and displace radially outward in radial direction RD1. Once apertures 518A are aligned with projections 516B, female connectors 518 snap back radially inward, in radial direction RD2, thereby securing the first spacer 420 to the second spacer 420. In some embodiments, female connector 518 further comprises circumferential slot 518C operatively arranged to facilitate easier elastic radial displacement of female connector 518. To disconnect a first spacer 420 from a second spacer 420, projections 516B are disengaged from holes 118A, as previously described with respect to spacer 20

[0053] Figure 10 is a perspective view of fluid connection assembly 210, in a fully assembled locked state. Figure 11 is a perspective view of fluid connection assembly 210, in a partially assembled locked state. Figure 12 is an exploded perspective view of fluid connection assembly 210. Fluid connection assembly 210 generally comprises spacer 220, tube 280, and connector body 240.

[0054] Tube 280 comprises end 282, section 283, bead or shoulder 287, section 289, end 292, and through-bore 294. Through-bore 294 extends through tube 280 from end 282 to end 292.

Section 283 is arranged between end 282 and shoulder 287 and comprises radially outward facing surface 284. Radially outward facing surface 284 includes a substantially constant diameter. In some embodiments, radially outward facing surface 284 comprises a frusto-conical taper or curvilinear surface proximate end 282 (see Figure 16). Radially outward facing surface 284 comprises one or more grooves, for example, groove 285A and groove 285B.

[0055] Groove 285A is shallower than groove 285B (i.e., groove 285A comprises a first depth and groove 285B comprises a second depth, the second depth being greater than the first depth). Groove 285A comprises a bottom surface and two side surfaces that extend from radially outward facing surface 284. In some embodiments, the bottom surface is substantially parallel to radially outward facing surface 284. In some embodiments, the bottom surface is non-parallel to radially outward facing surface 284. In some embodiments, the two side surfaces are substantially perpendicular to radially outward facing surface 284. In some embodiments, the two side surfaces are tapered and are non-perpendicular to radially outward facing surface 284. Groove 285A is operatively arranged to engage canted coil 264 in order to lock fluid connection assembly 210 (i.e., in the fully assembled locked state), as will be described in greater detail below.

[0056] Groove 285B is axially spaced from groove 285A in axial direction AD2 (i.e., groove 285B is arranged between groove 285A and shoulder 287). Groove 285B comprises a bottom surface and two side surfaces that extend from radially outward facing surface 284. In some embodiments, the bottom surface is substantially parallel to radially outward facing surface 284. In some embodiments, the bottom surface is non-parallel to radially outward facing surface 284. In some embodiments, the two side surfaces are tapered and are non-perpendicular to radially outward facing surface 284. As best shown in Figure 16, the two side surfaces are tapered away from each other in radial direction RD1. In some embodiments, the two side surfaces are substantially perpendicular to radially outward facing surface 284. Groove 285B is operatively arranged to engage canted coil 264 in order to unlock fluid connection assembly 210, as will be described in greater detail below.

[0057] Shoulder 287 is arranged between section 283 and section 289 and comprises surface 286 and surface 288. In some embodiments, surface 286 is an axial surface facing at least partially in axial direction ADI and surface 288 is an axial surface facing at least partially in axial direction AD2. In some embodiments, surface 286 is a frusto-conical surface extending from the radially outward facing surface of shoulder 287 radially inward in axial direction ADI. For example, surface 286 may be a linear conical shape and increases in diameter in axial direction AD2. In some embodiments, surface 286 may comprise a linear portion and a conical or frusto- conical portion. Section 289 is arranged between shoulder 287 and end 292 and comprises radially outward facing surface 290. Radially outward facing surface 290 includes a substantially constant diameter. Tube 280 is arranged to be inserted, specifically with end 282 first, into connector body 240. Tube 280 is inserted into connector body 240 until shoulder 287, specifically surface 286, engages spacer 220, specifically flange 230 (see Figure 16). When surface 286 engages and/or abuts against flange 230, section 283, or radially outward facing surface 284, engages seal 262 and canted coil 264 engages groove 285A. This is the fully assembled locked state of fluid connection assembly 210 wherein tube 280 cannot be displaced in axial direction ADI with respect to connector body 240 (due to the engagement of spacer 220 with shoulder 287) or in axial direction AD2 with respect to connector body 240 (due to the engagement of canted coil 264 with groove 285A). Shoulder 287 is arranged outside of and axially spaced from connector body 240. It should be appreciated that tube 280 may be any traditional tube or tube end form comprising a bead, radially outward extending protrusion or flange, or ramp profile, which extends radially outward and axially on the outer surface of the tube, to secure the tube within the connector body. In some embodiments, tube 280 comprises a metal, a polymer, and/or a ceramic. [0058] Figure 13 A is a perspective view of spacer 220, in a locked state. Figure 13B is a perspective view of spacer 220, in an unlocked state. Figure 14 is a perspective view of indicator shown 300. Figure 15 is a cross-sectional view of fluid connection assembly 210 taken generally along line 15-15 in Figure 11. Figure 16 is a cross-sectional view of fluid connection assembly 210 taken generally along line 16-16 in Figure 10. Figure 17 is a cross-sectional view of fluid connection assembly 210 taken generally along line 17-17 in Figure 11. The following description should be read in view of Figures 10-17.

[0059] Spacer 220 generally comprises section 220A and section 220B. In some embodiments, and as shown, section 220A and section 220B are hingedly connected via hinge 236. In some embodiments, hinge 236 is a living hinge. Spacer 220 comprises end 222, end 224, hole 221 extending from end 222 to end 224, radially outward facing surface 226, radially inward facing surface 228, and radially inward facing surface 232. Radially inward facing surface 228 extends from end 224 to flange 230 and comprises a first diameter. Flange 230 extends from radially inward facing surface 228 to radially inward facing surface 232, specifically groove 234, and comprises a second diameter. In some embodiments, the first diameter is greater than the second diameter. Flange 230 is operatively arranged to engage shoulder 287. Flange 230 forms a first axial surface facing in axial direction AD2 arranged to engage shoulder 287 of tube 280, and a second axial surface facing in axial direction ADI arranged to engage end 244. Radially inward facing surface 232 extends from end 222 to flange 230 and comprises a third diameter. In some embodiments, the third diameter is greater than the first diameter. In some embodiments, radially inward facing surface 232 comprises a frusto-conical surface at end 222 (e.g., a chamfer). Radially inward facing surface 232 comprises groove 234. In some embodiments, groove 234 is arranged immediately adjacent flange 230. In some embodiments, groove 234 is arranged between and spaced apart from flange 230 and end 222. Groove 234 comprises a fourth diameter. In some embodiments the fourth diameter is greater than the third diameter. Radially inward facing surface 232 is operatively arranged to engage groove 254 and groove 234 is operatively arranged to engage radially outward facing surface 252 to connect spacer 220 to connector body 240. In some embodiments, flange 230 engages and/or abuts against end 244 when spacer 220 is fully connected to connector body 240 (see Figure 16). [0060] Spacer 220 further comprises one or more holes, for example holes 238A-B, extending from radially outward facing surface 226 to radially inward facing surface 228. In some embodiments, holes 238A-B are radial holes arranged between and spaced apart from flange 230 and end 224. As best shown in Figure 15, hole 238A is arranged in section 220A and comprises protrusion 239A and protrusion 239B. Protrusions 239A-B are operatively arranged to engage ledges 308A-B to prevent indicator 300 from being removed from hole 238A in radial direction RD2, as will be described in greater detail below. Likewise, hole 238B is arranged in section 220B and comprises protrusion 239C and protrusion 239D. Protrusions 239C-D are operatively arranged to engage ledges 308A-B to prevent indicator 300 from being removed from hole 238B in radial direction RD2, as will be described in greater detail below.

[0061] In some embodiments, spacer 220 further comprises one or more holes, for example holes 237A-B, extending radially outward from radially inward facing surface 28. Hole 237A is aligned with hole 238A. Hole 237A comprises a first width and hole 238A comprises a second width, the first width being greater than the second width. Hole 237B is aligned with hole 238B. Hole 237B comprises a first width and hole 238B comprises a second width, the first width being greater than the second width.

[0062] Indicators 300 are slidably engaged with holes 238A-B, and holes 237A-B.

Indicator 300 comprises radially inward facing surface 302, shaft 304, and head 306. Radially inward facing surface 302 is curvilinear and is operatively arranged to engage shoulder 287 to displace indicator 300 radially outward with respect to spacer 220. In some embodiments, radially inward facing surface 302 comprises frusto-conical portion or frusto-conical radially inward facing surface 314, which facilitates a gradual radially outward displacement of indicator 300. Head 306 comprises a width that is greater than the width of shaft 304, thus forming ledges 308A-B on either side thereof. Head 306 comprises radially outward facing surface 307. Indicator 300 further comprises arms 310A-B. Arms 310A-B extend from the base of indicator 300 (element including radially inward facing surface 302) generally toward head 306. Arms 310 are operatively arranged to elastically deform and act as springs to bias indicator 100 radially inward with respect to spacer 220. Radially inward facing surface 302 (i.e., the base of indicator 300) and arms 310A-B are arranged in hole 237A, 237B and head 306 is arranged in hole 338A, 338B. Radially inward facing surface 302 and arms 310A-B are operatively arranged to engage holes 337A-B and their respective tapered surfaces to prevent removal of indicators 300 from holes 338A-B in a radially outward direction (i.e., radial direction RD1) with respect to spacer 220.

[0063] In the partially assembled locked state, as shown in Figures 11, 15, and 17, arms

310A-B are engaged with holes 337A-B, radially outward facing surface 307 is aligned with and does not protrude from radially outward facing surface 226, and radially inward facing surface 302 protrudes radially inward from radially inward facing surface 228. In the fully assembled locked state, as shown in Figures 10 and 16, arms 310A-B are elastically displaced (i.e., bent down toward radially inward facing surface 302) and are engaged with holes 337A-B, radially outward facing surface 307 is arranged radially outward from radially outward facing surface 226 (i.e., indicators 300 protrude in radial direction RD1 from radially outward facing surface 226), and radially inward facing surface 302 is aligned with and/or does not protrude radially inward from radially inward facing surface 228. The radially outward displacement of indicators 300 forces arms 110A- B to elastically bend in toward the indicator base (i.e., radially inward facing surface 302). This elastic displacement biases indicators 300 in radial direction RD2 back to their original position, as shown in Figure 15 and 17. Thus, when tube 280 is removed from spacer 220, indicators 300 will automatically displace radially inward from the position shown in Figure 16 (protruding from radially outward facing surface 226) to the position shown in Figure 17 (aligned with/not protruding from radially outward facing surface 226). [0064] At least one of section 220A and section 220B comprises male connector 316 and the other of section 220A and section 220B comprises female connector 318. As shown, male connector 316 on section 220B is arranged to engage female connector 318 on section 220A such that sections 220A and 220B are fixedly secured, it being understood that in some embodiments male connector 316 can be arranged on section 220A and female connector can be arranged on section 220B.

[0065] In some embodiments, male connector 316 is hook-shaped (in a radially outward direction) and includes groove 316A and projection 316B. Groove 316A is arranged in radially outward facing surface 226. Projection 316B extends generally radially outward in radial direction RD1 from groove 316A. In some embodiments, projection 316B comprises a tapered section near its radially outermost end operatively arranged to allow engagement of projection 316B with female connector 318, specifically, aperture 318A, to occur with greater ease.

[0066] Female connector 318 comprises aperture 318A extending radially inward from radially outward facing surface 226. Aperture 318A is operatively arranged to engage projection 316B to lock section 220A to section 220B. Female connector 318 further comprises recess 318B. In some embodiments, recess 318B is arranged in radially inward facing surface 228, flange 230, and/or radially inward facing surface 232 (i.e., extends radially outward therefrom). As section 220A is displaced toward section 220B, female connector 318 engages projection 316B and displaces radially outward in radial direction RD1. Once aperture 318A is aligned with projection 316B, female connector 318 snaps back radially inward, in radial direction RD2, thereby securing section 220A to section 220B. In some embodiments, female connector 318 further comprises circumferential slot 318C operatively arranged to facilitate easier elastic radial displacement of female connector 318.

[0067] To disconnect section 220A and section 220B, at least one of projection 316B and female connector 318 is displaced to disengage projection 316B from hole 318A. For example, projection 316B is displaced radially inward in radial direction RD2, which disengages projection 316B from hole 318A. Female connector 318 can also be displaced radially outward in radial direction RD1, which disengages projection 316B from hole 318A. In some embodiments, a tool such as a flat head screwdriver can be used to cause such displacement and disconnect sections 220A and 220B.

[0068] Connector body 240 comprises through-bore 241 extending from end 242 to end

244, radially inward facing surface 246, radially inward facing surface 248, groove 250, groove 266, radially outward facing surface 252, groove 254, head 258, and radially outward facing surface 260. Connector body 240 is arranged to be connected to a component that is filled with a fluid or through which fluid flows. For example, connector body 240 may be connected to a refrigeration compressor or a transmission via radially outward facing surface 260, which may comprise external threading. Connector body 240 may be screwed into a threaded hole in the compressor via head 258 (e.g., using a wrench), which is then filled with refrigerant fluid. In some embodiments, head 258 is hexagonal; however, it should be appreciated that head 258 may comprise any geometry suitable for applying torque to connector body 240. Another component in which fluid connector 210, specifically connector body 240, may be installed into is a condenser, evaporator, or pump. It should be appreciated that fluid connection assembly 210 may be used in various other components, assemblies, and subassemblies in which fluid connection is desired. [0069] Radially outward facing surface 260 may further comprise groove 256. A seal or

O-ring is arranged in groove 256 to create a fluid tight seal between connector body 240 and the component it is connected to. Seal 262 is arranged in connector body 240. Specifically, seal 262 is arranged in groove 250. Groove 250 is arranged in radially inward facing surface 248. In some embodiments, seal 262 is an O-ring. Canted coil 264 is arranged in connector body 240. Specifically, canted coil 264 is arranged in groove 266. Groove 266 is arranged in radially inward facing surface 248. In some embodiments, and as shown, radially inward facing surface 246 is a frusto-conical surface that connects generally cylindrical radially inward facing surface 248 with end 244 (e.g., a chamfered surface). Groove 254 is arranged in radially outward facing surface 252. Groove 254 is arranged axially between end 244 and head 258. In some embodiments, groove 254 is arranged immediately adjacent to head 258. Groove 254 is operatively arranged to engage with radially inward facing surface 232 to connect spacer 220 to connector body 240. In some embodiments, a frusto-conical surface connects radially outward facing surface 252 with end 244 (e.g., a chamfered surface). In some embodiments, connector body 240 comprises a metal, a polymer, and/or a ceramic.

[0070] To assemble fluid connection assembly 210, spacer 220 is secured over or onto connector body 240. Specifically, sections 220A and 220B are arranged over connector body 240 such that radially inward facing surface 232 engages groove 254, groove 234 engages radially outward facing surface 252, and flange 230 engages end 244. Once properly positioned, sections 220A-B are “snapped” together, thereby securing spacer 220 to connector body 240 (i.e., the partially assembled locked state). By snapped it is meant that male connector 316 of section 220B is engaged with female connector 318 of section 220A. Tube 280 is then inserted in axial direction ADI, with end 282 first, into spacer 220 and connector body 240. Radially outward facing surface 284 engages seal 262 and section 283 is arranged inside of connector body 240 proximate radially inward facing surface 248. Shoulder 287 is spaced apart from end 244 such that surface 286 abuts against flange 230 and canted coil 264 is engaged with groove 285A. As tube 280 is inserted in axial direction ADI within connector body 240, radially outward facing surface 284 engages canted coil 264 thereby “charging” or rotating it about a center axis of the coil. When groove 285A finally aligns with groove 285A, canted coil 264 is charged or exhibits a wound state and is ovular such that canted coil 264 prevents tube 280 from being displaced in axial direction AD2 with respect to connector body 240. While the now charged canted coil 264 prevents displacement of tube 280 in axial direction AD2 with respect to connector body 240, spacer 220 prevents displacement of tube 280 in axial direction ADI with respect to connector body 240 and fluid connection assembly 210 is in the fully assembled locked state. In addition, in the fully assembled locked state flange 230 engages tube 280, specifically radially outward facing surface 284, which further prevents displacement of tube 280 in radial directions RD1 and RD2 relative to connector body 240.

[0071] To disengage or unlock fluid connection assembly 210, spacer 220 is first removed from connector body 240. As previously described, female connector 318 is disengaged from male connector 316. Sections 220A and 220B can then be separated. Tube 280 is then displaced in axial direction ADI with respect to connector body 240 until surface 286 engages or abuts against end 244 of connector body 240. At this point, groove 285B is aligned with groove 266 and engaged with canted coil 264. Because groove 285B comprises a greater depth than groove 285 A, groove 285B, when aligned with groove 266, allows canted coil 264 to unwind or un-charge (i.e., release its tension). Once the tension in canted coil 264 is released, tube 280 can then be removed from connector body 240 (i.e., displaced in axial direction AD2 with respect to connector body 240). [0072] It should be appreciated that the components of fluid connection assembly 10 and fluid connection assembly 210 can be used interchangeably with each other and/or modified to be used interchangeably with each other.

[0073] It will be appreciated that various aspects of the disclosure above and other features and functions, or alternatives thereof, may be desirably combined into many other different systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may be subsequently made by those skilled in the art which are also intended to be encompassed by the following claims.

LIST OF REFERENCE NUMERALS

10 Fluid connection assembly 30 20A Section

20 Spacer 20B Section 21 Hole 30 66 Groove

22 End 80 Tube 24 End 82 End 26 Radially outward facing surface 83 Section 28 Radially inward facing surface 84 Radially outward facing surface 30 Flange 35 85A Groove 32 Radially inward facing surface 85B Groove 34 Groove 86 Surface 36 Hinge 87 Shoulder or bead 38A Hole 88 Surface 38B Hole 40 89 Section 39A Protrusion 90 Radially outward facing surface 39B Protrusion 92 End 39C Protrusion 94 Through-bore 39D Protrusion 100 Indicator

40 Connector body 45 102 Radially inward facing surface

41 Through-bore 104 Shaft

42 End 106 Head 44 End 107 Radially outward facing surface 46 Radially inward facing surface 108 A Ledge 48 Radially inward facing surface 50 108B Ledge 50 Groove 110 Hole 52 Radially outward facing surface 112 Tab 54 Groove 114 Radially inward facing surface 56 Groove 116 Male connector 58 Head 55 116A Groove 60 Radially outward facing surface 116B Projection 62 Seal 118 Female connector

64 Canted coil 118A Aperture 118B Recess 30 248 Radially inward facing surface

118C Slot or space 250 Groove

120A Hole 252 Radially outward facing surface

120B Hole 254 Groove 210 Fluid connection assembly 256 Groove

220 Spacer 35 258 Head

220A Section 260 Radially outward facing surface

220B Section 262 Seal

221 Hole 264 Canted coil 222 End 266 Groove

224 End 40 280 Tube

226 Radially outward facing surface 282 End

228 Radially inward facing surface 283 Section

230 Flange 284 Radially outward facing surface 232 Radially inward facing surface 284A Radially outward facing surface

234 Groove 45 285 Radially outward facing surface

236 Hinge 285A Groove

237A Hole 285B Groove

237B Hole 286 Surface 238A Hole 287 Shoulder or bead

238B Hole 50 288 Surface

239A Projection 289 Section

239B Projection 290 Radially outward facing surface

240 Connector body 292 End 241 Through-bore 294 Through-bore

242 End 55 300 Indicator

244 End 302 Radially inward facing surface

246 Radially inward facing surface 304 Shaft

247 Surface 306 Head 307 Radially outward facing surface 20 430 Flange

308A Ledge 432 Radially inward facing surface

308B Ledge 434 Groove

310A Arm 438 Hole 310B Arm 439A Protrusion (not shown)

314 Radially inward facing surface 25 439B Protrusion (not shown)

316 Male connector 516 Male connector

316A Groove 516A Groove

316B Projection 516B Projection 318 Female connector 518 Female connector

318A Aperture 30 518A Aperture

318B Recess 518B Recess

318C Slot or space 518C Slot or space

420 Spacer 520 Hole 421 Hole ADI Axial direction

422 End 35 AD2 Axial direction

424 End RD1 Radial direction

426 Radially outward facing surface RD2 Radial direction

428 Radially inward facing surface