WO2010099404A2 - Coupling assembly for connection to a hose - Google Patents
Coupling assembly for connection to a hose Download PDFInfo
- Publication number
- WO2010099404A2 WO2010099404A2 PCT/US2010/025532 US2010025532W WO2010099404A2 WO 2010099404 A2 WO2010099404 A2 WO 2010099404A2 US 2010025532 W US2010025532 W US 2010025532W WO 2010099404 A2 WO2010099404 A2 WO 2010099404A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hose
- barb
- cage
- outer diameter
- coupling assembly
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/02—Hose-clips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
- F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
- F16L33/2071—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
- F16L33/2073—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member directly connected to the rigid member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/49—Member deformed in situ
- Y10T403/4933—Member deformed in situ by separate, deformable element
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/75—Joints and connections having a joining piece extending through aligned openings in plural members
Definitions
- the present invention relates to a coupling assembly for connection to a hose.
- Beverage hoses are provided for fluid conveyance.
- the beverage hoses are typically formed from a plurality of layers of differing materials.
- a fitting typically interconnects the beverage hoses.
- the fittings include barbs having larger diameters that are embedded into a liner of the wall of the hose, creating a seal where fluid has no path for escape.
- the materials of the beverage hoses have been modified to meet the challenges of flavor cross-over, i.e., permeation, and flavor scalping.
- the highly specialized materials that are currently meeting organoleptic and barrier requirements of the beverage hoses do not necessarily work well with the barbs on the fittings because stresses are imparted at the barb/liner interface. These stress points may lead to premature hose failure as a result of the barbs cutting through the liner, i.e., "delamination", allowing the flavor to cross-over into the hose.
- a coupling assembly includes a fitting having a wall presenting an inner surface, surrounding a lumen, and an outer surface, opposing the inner surface.
- a barb extends radially away from the outer surface of the wall to a peak.
- a seal circumferentially surrounds the outer surface of the wall and is spaced from the peak of the barb.
- a hose has an interior surface surrounding a hollow interior and an exterior surface opposing the interior surface and presenting an initial outer diameter.
- the wall of the fitting is disposed in the hollow interior of the hose such that the hose extends over each of the seal and the barb so that the hose is deformed at the barb. This presents a displaced outer diameter, proximate the peak of the barb, that is greater than the initial outer diameter of the hose.
- a cage is spaced at least a distance from the peak of the barb and radially compresses the exterior surface of the hose and the seal.
- the hose is compressed to present a constricted outer diameter at the cage that is less than each of the initial outer diameter and the displaced outer diameter to form an interference fit between each of the hose, the barb, and the cage.
- the seal is in sealing engagement with the interior surface of the hose to prevent leakage of fluid from the coupling assembly.
- a method of forming a coupling assembly for a fluid system includes providing a fitting including a wall presenting an outer surface and a barb extending radially away from the outer surface to a peak.
- a seal is placed circumferentially about the wall of the fitting, in spaced relationship to the barb.
- a hose having an initial outer diameter, is placed over each of the barb and the seal such that the hose circumferentially surrounds the wall of the fitting and the hose forms a displaced outer diameter corresponding to the peak of the barb.
- a cage is placed circumferentially about the hose to radially surround each of the hose and the seal such that the cage is spaced at least a distance away from the peak of the barb.
- the cage is tightened about the hose to radially compress the exterior surface of the hose and the seal such that the hose is compressed to a constricted outer diameter that is less than each of the initial outer diameter and the displaced outer diameter to form an interference fit between each of the hose, the barb, and the cage.
- the seal is in sealing engagement with the interior surface of the hose to prevent leakage of fluid from the coupling assembly.
- a coupling assembly includes a fitting having a wall extending between opposing ends and presenting an inner surface, surrounding a lumen and an outer surface opposing the inner surface.
- a band extends radially from the outer surface to surround the wall such that the wall extends from the band in opposing directions to the respective ends.
- a barb extends radially away from the outer surface of the wall, proximate each of the ends, to a respective peak.
- a seal circumferentially surrounds the outer surface of the wall between the band and each of the barbs.
- Each of a pair of hoses includes an interior surface surrounding a hollow interior and an exterior surface opposing the interior surface, presenting an initial outer diameter.
- the walls of the fitting are disposed in the hollow interior of a respective one of the hoses such that the respective one of the hoses extends over each of the respective seal and the respective barb such that the respective one of the hoses is deformed at the respective barb to present a displaced outer diameter proximate the respective peak of the respective barb that is greater than the initial outer diameter of the respective one of the hoses.
- Each of a pair of cages is spaced at least a distance from the peak of the barb and radially compresses each of the exterior surface of the respective hose and the respective seal such that the respective hose is compressed to a present a constricted outer diameter at the respective cage that is less than each of the initial outer diameter and the displaced outer diameter to form an interference fit between each of the respective one of the pair of hoses, the respective barb, and the respective cage.
- Each of the seals are in sealing engagement with the interior surface of the respective one of the pair of hoses to prevent leakage of fluid from the coupling assembly
- Figure 1 is a partial schematic side view of a coupling assembly showing a pair of hoses interconnected with a fitting, a pair of cages, and a pair of cages;
- Figure 2 is schematic partial cross-sectional side view of the coupling assembly of Figure 1;
- Figure 3 is a schematic side view of the fitting and the pair of cages of the coupling assembly;
- Figure 4A is a schematic cross-sectional side view of another embodiment of the fitting having a barbed end and configured for connection to the hose;
- Figure 4B is schematic cross-sectional side view of another embodiment of the fitting having a barbed end and configured for connection to the hose;
- Figure 4C is a schematic cross-sectional side view of another embodiment of the fitting having a barbed end and configured for connected to the hose;
- Figure 4D is a schematic cross-sectional side view of another embodiment of the fitting having a barbed end and configured for connected to the hose;
- Figure 4E is a schematic cross-sectional side view of another embodiment of the fitting having a barbed end and configured for connected to the hose;
- Figure 4F is a schematic cross-sectional side view of another embodiment of the fitting having a barbed end and configured for connected to the hose;
- Figure 4H is a schematic cross-sectional side view of another embodiment of the fitting having a barbed end and configured for connected to the hose;
- Figure 41 is a schematic cross-sectional side view of another embodiment of the fitting having a barbed end and configured for connected to the hose;
- Figure 4J is a schematic cross-sectional side view of another embodiment of the fitting having a barbed end and configured for connected to the hose.
- Figure 1 shows a coupling assembly 10 interconnecting a pair of hoses 12.
- the coupling assembly 10 may be used to couple hoses 12 for the conveyance of fluids within a fluid system (not shown).
- the fluid system may be a beverage system.
- the coupling assembly 10 is configured to interconnect the pair of hoses 12 such that the coupling assembly 10 withstands at least two times a working pressure of the fluid system without leakage.
- the hoses 12 each extend to a terminus 14 and define a hollow interior 16 extending therethrough, as shown in Figure 2.
- the hoses 12 may be formed from a material approved for use in the beverage industry and the like.
- Each hose 12 includes an inner surface 17 surrounding the hollowing interior 16.
- An exterior surface 19 opposes the interior surface 17.
- the exterior surface 19 presents an initial outer diameter IOD.
- the hose 12 may be formed to include a plurality of layers 18.
- the layers 18 may include a contact layer 18a, a backing layer 18b, a reinforcement layer 18c, and a sheath 18d. It should be appreciated that more or less layers 18 may be used as known to those skilled in the art.
- the contact layer 18a surrounds the hollow interior 16 and comes into direct contact with the fluid flowing through the hose 12. Therefore, the contact layer 18a is formed from a material that is compatible with the fluid, such as a thermoplastic material. More specifically, the thermoplastic material may be formed from polyethylene terephthalate (PET), polyester, and the like.
- PET polyethylene terephthalate
- the contact layer 18a presents a non-porous, non-wetting, smooth contact surface 20 that enhances flushability of the hose 12, improves flow of the fluid through the hose 12, and hinders microbial growth within the hose 12.
- the backing layer 18b surrounds the contact layer 18a and may be formed from a blend of polyethylene and a linear low-density polyethylene (LLDPE) or any other suitable material known to those skilled in the art.
- LLDPE linear low-density polyethylene
- the reinforcement layer 18c surrounds the backing layer 18b and may be formed from a twisted polyester yarn or any other materials known to those skilled in the art.
- the sheath 18d surrounds the reinforcement layer 18c and provides an outer-most protective barrier to the exterior of the hose 12.
- the sheath 18d may be formed from an ethylene vinyl acetate copolymer (EVA) or any other materials known to those skilled in the art.
- EVA ethylene vinyl acetate copolymer
- the coupling assembly 10 includes a fitting 22, a pair of cages 24, and a pair of cages 26. Referring to Figure 2, the fitting 22 is generally tubular and defines a lumen 28 extending therethrough, between opposing ends 30.
- the fitting 22 includes a wall 32 that presents an inner surface 34 that surrounds the lumen 28 and an outer surface 36 that opposes the inner surface 34, as shown in Figure 3.
- a band 38 radially extends from the outer surface 36 to surround the wall 32.
- the band 38 may generally bisect the wall 32 such that the wall 32 extends from the band 38 in opposing directions to the respective end 30.
- a pair of grooves 40 is defined in the band 38 in spaced relationship to one another. Each of the grooves 40 extends generally circumferentially about the band 38.
- the outer surface 36 of the wall 32 may define a pair of channels 42 that surround the lumen 28 on opposing sides of the band 38. Therefore, each channel 42 is defined in the wall 32 between the band 38 and the respective end 30.
- a seal 44 such as an O-ring, may be disposed in each channel 42 to provide sealing engagement between the lumen 28 and the corresponding hose 12, as described in more detail below.
- a barb 46 may extend radially away from the outer surface 36 of the wall 32, proximate the respective end 30 of the fitting 22 such that each barb 46 is disposed between one of the channels 42 and the respective end 30.
- Each barb 46 generally surrounds the lumen 28 and is generally frustoconical in shape.
- Each barb 46 is configured to provide a general interference fit with the corresponding hose 12, as described in more detail below.
- Each barb 46 extends to a peak 48 that is generally rounded so that the corresponding hose 12 is guided around the barb 46, as described in more detail below.
- the fitting 22 may be formed via injection-molding from a thermoplastic material. More specifically, the thermoplastic material may be polyethylene, polyurethane, glass- filled nylon, nano-materials (i.e., nano-composites, etc.), and the like. Alternatively, the fitting 22 may be formed from stainless steel. It should be appreciated, however, that the fitting 22 may be formed from any other material known to those skilled in the art so long as the material is suitable for use with the respective fluid at the desired pressure, temperature, and the like. For example, the material must be approved for use in the beverage industry if the fitting 22 will be used for beverage dispensing.
- Each cage 24 includes a base 50 and a pair of arms 52 that extend generally perpendicularly from the base 50 in spaced and generally parallel relationship to one another.
- Each arm 52 includes a receiving portion 54 that is offset from the arm 52 to define a relief 56 that is configured for receiving the respective cage 26 therein.
- the base 50 is generally C-shaped and is configured to be disposed in the respective channel 42 of the band 38 such that base 50 snaps at least partially around the band 38 of the fitting 22, within the channel 42, to retain the cage 26 to the fitting 22.
- the base 50 is at least partially sandwiched by the band 38 to prevent the cage 24 from moving along the fitting 22 relative to the ends 30.
- each arm 52 of the respective cage 24 is configured to extend from the base 50 to the respective end 30 of the fitting 22 such that the wall 32 is disposed therebetween.
- the reliefs 56 of each arm 52 are configured to correspond with the groove 40 and the O-ring 44. Therefore, when the cage 26 is placed within the reliefs 56 of the respective pair of arms 52 and tightened about the hose 12, the band compresses the hose 12 such that the O-ring 44 forms a seal between the hose 12 and the wall 32 of the fitting 22. This seal prevents leakage between the fitting 22 and the hose 12.
- the cage 24 may be formed from aluminum, steel, plastic, and the like. In one embodiment, the fitting 22 and the cages 24 are formed as a single component via injection molding.
- each hose 12 is mounted over the respective end 30 of the fitting 22 such that each hose 12 extends over the respective barb 46 and the adjacent O-ring 44.
- the barbs 46 and the hoses 12 are sized such that there is an interference fit therebetween.
- the cages 24 may be preassembled to the fitting 22 or attached to the fitting 22 after the hoses 12 are mounted to the fitting 22. Once the hoses 12 and the cages 24 are attached to the fitting 22, each receiving portion 54 and relief 56 extends over the respective O-ring 44.
- the cages 26 are placed within the relief 56 of the respective cage 24 and tightened such that the receiving portions 54 of each of the opposing arms 52 of the cage 24 compress and are embedded into the exterior surface 19 of the sheath 18d of the corresponding hose 12. Therefore, the initial outer diameter IOD of the hose 12 is reduced by tightening the cages 26.
- the barb 46 is configured to be spaced a distance D of at least 0.060 inches from the relief 56 portions of the arms 52 of the corresponding cage 24. This spacing allows the contact layer 18a of the hose 12 to adequately extend around the barb 46 such that the barb 46 is prevented from being embedded into the contact layer 18a of the hose 12.
- the barb 46 merely displaces the hose 12 radially away from the barb 46, to form a displaced outer diameter DOD that is larger than the initial outer diameter IOD.
- the cage 26 is tightened about the hose 12 such that the hose 12 at the receiving portion 54 has a constricted outer diameter COD that is less than the displaced outer diameter DOD of the hose 12 at the peak 48 of the barb 46 and the initial outer diameter IOD, creating an interference fit.
- This interference fit traps the hose 12 between the barb 46 and the receiving portion 54 to prevent the hose 12 from blowing off the fitting 22 as fluid travels therethrough or from slipping off of the fitting 22 as the hose 12 and the connection assembly are moved during use of the fluid system.
- the fittings 22 may also be configured as shown in Figures 4A-4J, 22A, 22B, 22C, 22D, 22E, 22F, 22G, 22H, 221, and 22J, respectively.
- Each of the fittings 22A-22J includes a wall 32 surrounding an inner surface.
- Each of the fittings 22A- 22J extends to at least one end 30A having the barb 46, the groove 42, and the O-ring 22 for disposition into the corresponding hose 12.
- the fittings 22A, 22B each extend to only one end 30A having the barb 46, the groove 42, and the O-ring 44 for disposition into the hose 12.
- the opposing end 30B defines a tapered seat 58 for receiving another hose, fitting, and the like.
- the fitting 22C extends to only one end 30A having the barb 46, the groove 42, and the O-ring 44 for disposition into the hose 12.
- the band 38A extends from an outer surface 36 of the wall 32 with a groove 4OA defined in the band 38A, proximate the opposing end 30B.
- the fitting 4D extends to only one end 30A having the barb 46, the groove 42, and the O-ring 44 for disposition into the hose 12.
- the opposing end 30B is oriented generally perpendicular to the first end 30A.
- the opposing end 30B defines the tapered seat 58 for receiving another hose, fitting, and the like.
- the fittings 22E, 22F each extend between two opposing ends 30A, each having the barb 46, the groove 42, and the O-ring 44 for disposition into the respective hose 12.
- the walls each define a tapered seat 58 between the ends.
- the fitting 4G extends to only one end 30A having the barb 46, the groove 42, and the O-ring 44 for disposition into the hose 12.
- the opposing end 30B is oriented generally perpendicular to the first end 30A.
- the opposing end defines a bore 60 configured for receiving another hose, fitting, and the like.
- the fitting 4H extends to only one end 30A having the barb 46, the groove 42, and the O-ring 44 for disposition into the hose 12.
- a collar 62 extends from the exterior surface 36 of the wall 32, proximate the opposing end 3OB.
- the wall 32 defines a recess 64 proximate the opposing end 3OB.
- the collar 62 and the recess 64 are configured to mate with a special connector (not shown) such that a nut 68 may be slid over the external surface 36 of the wall 32 of the fitting 4H to be threaded to the special connector. Therefore, the nut 68 is trapped between the collar 62 and the special connector to retain the fitting 4H to the special connector. It should be appreciated that the nut 68 is not necessarily required with this fitting 4H.
- the fitting 41 extends to only one end 30A having the barb 46, the groove 42, and the O-ring 44 for disposition into the hose 12.
- the wall 32 of the fitting 41 extends to an opposing end 30B that is just the wall 32.
- the fitting 4J extends to only one end 30A having the barb 46, the groove 42, and the O-ring 44 for disposition into the hose 12.
- the wall extends to an opposing end 30B having a pipe thread connector
- pipe thread connector 66 having external threads 68. It should be appreciated, however, that the pipe thread connector 66 is not limited to having external threads 68, as the pipe thread connector may have threads that are internal.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2753707A CA2753707C (en) | 2009-02-26 | 2010-02-26 | Coupling assembly for connection to a hose |
MX2011009061A MX2011009061A (en) | 2009-02-26 | 2010-02-26 | Coupling assembly for connection to a hose. |
CN2010800182438A CN102414499A (en) | 2009-02-26 | 2010-02-26 | Coupling assembly for connection to hose |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/393,176 | 2009-02-26 | ||
US12/393,176 US8091928B2 (en) | 2009-02-26 | 2009-02-26 | Coupling assembly for connection to a hose |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010099404A2 true WO2010099404A2 (en) | 2010-09-02 |
WO2010099404A3 WO2010099404A3 (en) | 2010-10-21 |
Family
ID=42358157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2010/025532 WO2010099404A2 (en) | 2009-02-26 | 2010-02-26 | Coupling assembly for connection to a hose |
Country Status (5)
Country | Link |
---|---|
US (1) | US8091928B2 (en) |
CN (1) | CN102414499A (en) |
CA (1) | CA2753707C (en) |
MX (1) | MX2011009061A (en) |
WO (1) | WO2010099404A2 (en) |
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DE10141609A1 (en) * | 2001-08-24 | 2003-03-06 | Bosch Gmbh Robert | Power tool with several functional assemblies housed in separate housings |
DK1448927T3 (en) * | 2001-11-28 | 2005-10-24 | Friatec Ag | Connector |
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US7108291B2 (en) * | 2003-05-07 | 2006-09-19 | Parker-Hannifin | Clip coupling |
US20040229540A1 (en) * | 2003-05-15 | 2004-11-18 | Kuraray Co. Ltd. | Dustproof clothing |
DE10357892A1 (en) * | 2003-12-11 | 2005-07-14 | A. Raymond & Cie | Device for connecting to one end of a corrugated tube |
US20050194578A1 (en) * | 2004-03-03 | 2005-09-08 | Morris David D. | Innerduct guide tube assembly for fiber optic cable |
ATE458951T1 (en) * | 2004-04-20 | 2010-03-15 | Salver S P A | MULTI-LAYER LINE |
-
2009
- 2009-02-26 US US12/393,176 patent/US8091928B2/en active Active
-
2010
- 2010-02-26 CN CN2010800182438A patent/CN102414499A/en active Pending
- 2010-02-26 MX MX2011009061A patent/MX2011009061A/en not_active Application Discontinuation
- 2010-02-26 CA CA2753707A patent/CA2753707C/en active Active
- 2010-02-26 WO PCT/US2010/025532 patent/WO2010099404A2/en active Application Filing
Non-Patent Citations (1)
Title |
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None |
Also Published As
Publication number | Publication date |
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MX2011009061A (en) | 2011-09-21 |
WO2010099404A3 (en) | 2010-10-21 |
US8091928B2 (en) | 2012-01-10 |
CN102414499A (en) | 2012-04-11 |
CA2753707C (en) | 2016-12-13 |
US20100215430A1 (en) | 2010-08-26 |
CA2753707A1 (en) | 2010-08-25 |
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