WO2017040246A1 - Fluid conduit fitting assembly - Google Patents

Fluid conduit fitting assembly Download PDF

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Publication number
WO2017040246A1
WO2017040246A1 PCT/US2016/048881 US2016048881W WO2017040246A1 WO 2017040246 A1 WO2017040246 A1 WO 2017040246A1 US 2016048881 W US2016048881 W US 2016048881W WO 2017040246 A1 WO2017040246 A1 WO 2017040246A1
Authority
WO
WIPO (PCT)
Prior art keywords
axial
socket
protrusions
fluid conduit
fitting assembly
Prior art date
Application number
PCT/US2016/048881
Other languages
French (fr)
Inventor
Todd Jerome VOGEL
Ryan Thomas ELLERBROCK
Ryan Joseph SCHROEDER
Christian Kuenstel
Bjoern Theberath
Original Assignee
Eaton Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eaton Corporation filed Critical Eaton Corporation
Priority to EP16842667.4A priority Critical patent/EP3341642A4/en
Priority to CA2996298A priority patent/CA2996298A1/en
Publication of WO2017040246A1 publication Critical patent/WO2017040246A1/en

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
    • F16L33/20—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
    • F16L33/2076—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 by plastic deformation

Definitions

  • Fittings are disposed on the ends of a fluid conduit (e.g., hydraulic hose, tubing, etc.) so that the fluid conduit can be connected with a mating part (e.g., components, fluid conduits, etc.).
  • a conventional fitting includes a nipple and a socket positioned about the nipple.
  • a hose end is inserted between the nipple and the socket during assembly and the socket is crimped to the hose end to secure the fitting to the hose. While the conventional socket design works well, there is a desire to increase the manufacturability of the socket.
  • An aspect of the present disclosure relates to a fitting assembly for a fluid conduit.
  • the fitting assembly includes a nipple and a socket.
  • the nipple has a first axial end portion and an oppositely disposed second axial end portion.
  • the first axial end portion defines a plurality of ridges.
  • the socket includes a first end and an oppositely disposed second end.
  • the socket includes an outer surface and an inner surface.
  • the inner surface defines a thru-bore having a central longitudinal axis.
  • the socket includes a plurality of axial protrusions on the inner surface that extends radially inward. The plurality of axial protrusions extending longitudinally along the central longitudinal axis of the socket.
  • the socket has a first end and an oppositely disposed second end.
  • the socket includes an outer surface and an inner surface.
  • the inner surface defines a thru-bore having a central longitudinal axis.
  • the socket includes a plurality of axial protrusions and a plurality of axial grooves. The axial protrusions and the axial grooves being alternately disposed on the inner surface and extending longitudinally along the central longitudinal axis of the socket.
  • the fluid conduit assembly includes a fluid conduit and a fitting assembly adapted for engagement with the fluid conduit.
  • the fitting assembly having a nipple and a socket.
  • the nipple has a first axial end portion and an oppositely disposed second axial end portion.
  • the first axial end portion having a plurality of ridges.
  • the socket has a first end, an oppositely disposed second end, an outer surface and an inner surface.
  • the inner surface defines a thru-bore having a central longitudinal axis.
  • the socket includes a plurality of axial protrusions and a plurality of axial grooves.
  • the axial protrusions and the axial grooves being alternately disposed on the inner surface and extending longitudinally along the central longitudinal axis of the socket.
  • the plurality of axial protrusions extend in a direction that is generally perpendicular to a direction in which the plurality of ridges of the nipple extend.
  • Another aspect of the present disclosure relates to a method of manufacturing a socket of a fitting assembly for a fluid conduit.
  • the method including cold heading material to form a socket of the fitting assembly having a first end and an oppositely disposed second end.
  • the socket includes an outer surface and an inner surface.
  • the inner surface defines a thru-bore having a central longitudinal axis.
  • the socket includes a plurality of axial protrusions on the inner surface that extends radially inward. The plurality of axial protrusions extending longitudinally along the central longitudinal axis of the socket.
  • FIG. 1 is an isometric view of a fluid conduit assembly having exemplary features of aspects in accordance with the principles of the present disclosure.
  • FIG. 2 is a fragmentary cross-sectional view of the fluid conduit assembly of FIG.
  • FIG. 3 is a side view of a socket of a fitting assembly of the fluid conduit assembly of FIG. 1.
  • FIG. 4 is a cross-sectional view of the socket taken on line 4-4 of FIG. 3.
  • FIG. 5 is a fragmentary isometric view of the socket of FIG. 3.
  • the fluid conduit assembly 10 includes a fluid conduit 12 and a fitting assembly 14.
  • the fluid conduit 12 is a hose that is adapted to convey fluid from a first axial end 16 of the hose to an oppositely disposed second axial end 18 of the hose.
  • the fluid conveyed by the fluid conduit 12 is hydraulic fluid.
  • the fluid conduit 12 includes an innermost layer 20 (shown in FIG. 2), an outermost layer 22 and an intermediate layer 24 disposed between the innermost and outermost layers 20, 22.
  • the innermost layer 20 defines a bore 26 through which fluid flows.
  • the fluid conduit 12 further includes a first reinforcement layer 28 disposed between the innermost and outermost layers 20, 22 and a second reinforcement layer 30 disposed between the first reinforcement layer 28 and the innermost layer 20.
  • the intermediate layer 24 is disposed between the first and second reinforcement layers 28, 30.
  • the fitting assembly 14 includes a nipple 32 and a socket 34.
  • the nipple 32 includes a first axial end portion 36 and an oppositely disposed second axial end portion 38.
  • the nipple 32 defines a bore 40 that extends through the first and second axial end portions 36, 38 along a central longitudinal axis 42 of the fitting assembly 14.
  • the first axial end portion 36 of the nipple 32 is adapted for insertion into the bore 26 of the first axial end 16 of the fluid conduit 12.
  • the first axial end portion 36 of the nipple 32 includes an end portion 44, a plurality of ridges 46 disposed adjacent to the end portion 44, and an annular shoulder 48 disposed adjacent to the plurality of ridges 46.
  • the plurality of ridges 46 is disposed between the end portion 44 and the annular shoulder 48.
  • the end portion 44 of the nipple 32 is tapered.
  • the taper of the end portion 44 has an outer diameter that increases in a direction from an end surface 50 of the end portion 44 to the plurality of ridges 46.
  • each of the plurality of ridges 46 is an annular ridge.
  • the ridges 46 are separated by annular grooves 52.
  • the annular shoulder 48 extends radial outward from the first axial end portion 36.
  • the annular shoulder 48 is adapted to abut an end surface of the fluid conduit 12 when the first axial end portion 36 is disposed in the bore 26 of the fluid conduit 12.
  • the nipple 32 defines a groove 54 disposed between the annular shoulder 48 and the second axial end portion 38 of the nipple 32.
  • the groove 54 is adapted to receive a portion of the socket 34 and to axially retain the socket 34 along the nipple 32.
  • the second axial end portion 38 of the nipple 32 is adapted for engagement with a mating fitting.
  • the second axial end portion 38 includes a nut (not shown) adapted for threaded engagement with the mating fitting.
  • the socket 34 includes a body 60 having a first end 62 and an oppositely disposed second end 64.
  • the socket 34 includes an outer surface 66 and an inner surface 68.
  • the inner surface 68 of the socket 34 defines a thru-bore 70 that extends through the first and second ends 62, 64 along a central longitudinal axis 72 of the socket 34.
  • the thru-bore 70 is adapted to receive the first axial end 16 of the fluid conduit 12 and the first axial end portion 36 of the nipple 32.
  • the socket 34 includes a retainer 74.
  • the retainer 74 is disposed adjacent to the first end 62 of the socket 34.
  • the retainer 74 extends radially into the thru-bore 70 of the socket 34.
  • the retainer 74 is adapted for disposition in the groove 54 of the nipple 32.
  • the socket 34 includes a plurality of axial protrusions 80.
  • the axial protrusions 80 extend radially inward from the inner surface 68 of the socket 34.
  • Each of the axial protrusions 80 is elongated along the central longitudinal axis 72 of the socket 34.
  • each of the axial protrusions 80 includes a first axial end 82 and an oppositely disposed second axial end 84.
  • the first axial ends 82 of the axial protrusions 80 are disposed adjacent to the retainer 74 of the socket 34.
  • the second axial ends 84 are disposed adjacent to the second end 64 of the socket 34.
  • axial protrusions 80 there are twelve axial protrusions 80 disposed on the inner surface 68 about the central longitudinal axis 72 of the socket 34.
  • a width of a base 86 of each axial protrusion 80 is greater than a width of a tip 88.
  • each of the axial protrusions 80 including a longitudinal length.
  • the longitudinal length of the axial protrusion 80 is at least about 50% of the length of the socket.
  • the longitudinal length of the axial protrusion 80 extends at least half of a length of the socket 34. In another embodiment, the longitudinal length of the axial protrusion 80 extends at least three-quarters of the length of the socket 34.
  • the axial protrusions 80 are tapered in the longitudinal direction.
  • the longitudinal taper of the axial protrusions 80 is such that an inner diameter defined by the tips 88 of the axial protrusions 80 at the second axial ends 84 of the axial protrusions 80 is greater than an inner diameter defined by the tips 88 at the first axial ends 82.
  • the socket 34 defines a plurality of axial grooves 90.
  • the axial grooves 90 and the axial protrusions 80 are alternately disposed on the inner surface 68 of the socket 34 around the central longitudinal axis 72.
  • Each of the axial grooves 90 is elongated along the central longitudinal axis 72 of the socket 34.
  • the retainer 74 of the socket 34 is inserted into the groove 54 of the nipple 32.
  • the plurality of axial protrusions 80 of the socket 34 extends in a direction that is generally perpendicular to a direction in which the plurality of ridges 46 of the nipple 32 extend.
  • the fitting assembly 14 defines an annular cavity 92 between the first axial end portion 36 of the nipple 32 and the socket 34.
  • the first axial end 16 of the fluid conduit 12 is inserted into the annular cavity 92 so that the first axial end portion 36 of the nipple 32 is inserted into the bore 26 of the fluid conduit 12 while at least a portion of the socket 34 is disposed about the outermost layer 22 of the first axial end 16 of the fluid conduit 12.
  • the first axial end 16 of the fluid conduit 12 is inserted into the annular cavity 92 until the first axial end 16 abuts the annular shoulder 48 of the nipple 32.
  • the outer surface 66 of the socket 34 is compressed (e.g., crimped) radially inward.
  • the radial compression of the socket 34 compresses the fluid conduit 12 between the axial protrusions 80 of the socket 34 and the plurality of ridges 46 of the nipple 32 in order to retain the fitting assembly 14 on the fluid conduit 12.
  • the axial protrusions 80 of the socket 34 allow the socket 34 to be manufactured using a cold heading process which greatly reduces manufacturing costs. While cold heading can be used to manufacture the body of a conventional socket with annular protrusions on the inner diameter, the annular protrusions need to be machined using a secondary process (e.g., turning). This secondary process negates any cost efficiencies associated with the cold heading process.
  • the axial protrusions 80 allow the socket 34 to be cold headed to net shape without the need for additional processes to form the axial protrusions 80.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints With Pressure Members (AREA)

Abstract

A socket of a fitting assembly adapted for engagement with a fluid conduit has a first end and an oppositely disposed second end. The socket includes an outer surface and an inner surface. The inner surface defines a thru-bore having a central longitudinal axis. The socket includes a plurality of axial protrusions and a plurality of axial grooves. The axial protrusions and the axial grooves being alternately disposed on the inner surface and extending longitudinally along the central longitudinal axis of the socket.

Description

FLUID CONDUIT FITTING ASSEMBLY
CROSS REFERENCE TO RELATED APPLICATION
The present application claims priority to U.S. Patent Application Serial No. 62/211,232, which is entitled Fluid Conduit Fitting Assembly and was filed on Aug. 28,
2015, the disclosure of which is hereby incorporated by reference in its entirety.
BACKGROUND
Fittings are disposed on the ends of a fluid conduit (e.g., hydraulic hose, tubing, etc.) so that the fluid conduit can be connected with a mating part (e.g., components, fluid conduits, etc.). A conventional fitting includes a nipple and a socket positioned about the nipple. A hose end is inserted between the nipple and the socket during assembly and the socket is crimped to the hose end to secure the fitting to the hose. While the conventional socket design works well, there is a desire to increase the manufacturability of the socket.
SUMMARY
An aspect of the present disclosure relates to a fitting assembly for a fluid conduit.
The fitting assembly includes a nipple and a socket. The nipple has a first axial end portion and an oppositely disposed second axial end portion. The first axial end portion defines a plurality of ridges. The socket includes a first end and an oppositely disposed second end. The socket includes an outer surface and an inner surface. The inner surface defines a thru-bore having a central longitudinal axis. The socket includes a plurality of axial protrusions on the inner surface that extends radially inward. The plurality of axial protrusions extending longitudinally along the central longitudinal axis of the socket.
Another aspect of the present disclosure relates to a socket of a fitting assembly adapted for engagement with a fluid conduit. The socket has a first end and an oppositely disposed second end. The socket includes an outer surface and an inner surface. The inner surface defines a thru-bore having a central longitudinal axis. The socket includes a plurality of axial protrusions and a plurality of axial grooves. The axial protrusions and the axial grooves being alternately disposed on the inner surface and extending longitudinally along the central longitudinal axis of the socket.
Another aspect of the present disclosure relates to a fluid conduit assembly. The fluid conduit assembly includes a fluid conduit and a fitting assembly adapted for engagement with the fluid conduit. The fitting assembly having a nipple and a socket.
The nipple has a first axial end portion and an oppositely disposed second axial end portion. The first axial end portion having a plurality of ridges. The socket has a first end, an oppositely disposed second end, an outer surface and an inner surface. The inner surface defines a thru-bore having a central longitudinal axis. The socket includes a plurality of axial protrusions and a plurality of axial grooves. The axial protrusions and the axial grooves being alternately disposed on the inner surface and extending longitudinally along the central longitudinal axis of the socket. The plurality of axial protrusions extend in a direction that is generally perpendicular to a direction in which the plurality of ridges of the nipple extend.
Another aspect of the present disclosure relates to a method of manufacturing a socket of a fitting assembly for a fluid conduit. The method including cold heading material to form a socket of the fitting assembly having a first end and an oppositely disposed second end. The socket includes an outer surface and an inner surface. The inner surface defines a thru-bore having a central longitudinal axis. The socket includes a plurality of axial protrusions on the inner surface that extends radially inward. The plurality of axial protrusions extending longitudinally along the central longitudinal axis of the socket.
DRAWINGS
FIG. 1 is an isometric view of a fluid conduit assembly having exemplary features of aspects in accordance with the principles of the present disclosure.
FIG. 2 is a fragmentary cross-sectional view of the fluid conduit assembly of FIG.
1.
FIG. 3 is a side view of a socket of a fitting assembly of the fluid conduit assembly of FIG. 1. FIG. 4 is a cross-sectional view of the socket taken on line 4-4 of FIG. 3.
FIG. 5 is a fragmentary isometric view of the socket of FIG. 3.
DETAILED DESCRIPTION
Reference will now be made in detail to the exemplary aspects of the present disclosure that are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like structure.
Referring now to FIGS. 1 and 2, a fluid conduit assembly 10 is shown. The fluid conduit assembly 10 includes a fluid conduit 12 and a fitting assembly 14. In the depicted embodiment, the fluid conduit 12 is a hose that is adapted to convey fluid from a first axial end 16 of the hose to an oppositely disposed second axial end 18 of the hose. In one embodiment, the fluid conveyed by the fluid conduit 12 is hydraulic fluid.
In the depicted embodiment, the fluid conduit 12 includes an innermost layer 20 (shown in FIG. 2), an outermost layer 22 and an intermediate layer 24 disposed between the innermost and outermost layers 20, 22. The innermost layer 20 defines a bore 26 through which fluid flows.
In the depicted embodiment, the fluid conduit 12 further includes a first reinforcement layer 28 disposed between the innermost and outermost layers 20, 22 and a second reinforcement layer 30 disposed between the first reinforcement layer 28 and the innermost layer 20. In the depicted embodiment, the intermediate layer 24 is disposed between the first and second reinforcement layers 28, 30.
The fitting assembly 14 includes a nipple 32 and a socket 34. The nipple 32 includes a first axial end portion 36 and an oppositely disposed second axial end portion 38. The nipple 32 defines a bore 40 that extends through the first and second axial end portions 36, 38 along a central longitudinal axis 42 of the fitting assembly 14.
In the depicted embodiment, the first axial end portion 36 of the nipple 32 is adapted for insertion into the bore 26 of the first axial end 16 of the fluid conduit 12. The first axial end portion 36 of the nipple 32 includes an end portion 44, a plurality of ridges 46 disposed adjacent to the end portion 44, and an annular shoulder 48 disposed adjacent to the plurality of ridges 46. In the depicted embodiment, the plurality of ridges 46 is disposed between the end portion 44 and the annular shoulder 48.
In the depicted embodiment, the end portion 44 of the nipple 32 is tapered. The taper of the end portion 44 has an outer diameter that increases in a direction from an end surface 50 of the end portion 44 to the plurality of ridges 46.
In the depicted embodiment, each of the plurality of ridges 46 is an annular ridge. The ridges 46 are separated by annular grooves 52.
The annular shoulder 48 extends radial outward from the first axial end portion 36. The annular shoulder 48 is adapted to abut an end surface of the fluid conduit 12 when the first axial end portion 36 is disposed in the bore 26 of the fluid conduit 12.
The nipple 32 defines a groove 54 disposed between the annular shoulder 48 and the second axial end portion 38 of the nipple 32. The groove 54 is adapted to receive a portion of the socket 34 and to axially retain the socket 34 along the nipple 32.
The second axial end portion 38 of the nipple 32 is adapted for engagement with a mating fitting. In one embodiment, the second axial end portion 38 includes a nut (not shown) adapted for threaded engagement with the mating fitting.
Referring now to FIGS. 3-5, the socket 34 will be described. The socket 34 includes a body 60 having a first end 62 and an oppositely disposed second end 64. The socket 34 includes an outer surface 66 and an inner surface 68. The inner surface 68 of the socket 34 defines a thru-bore 70 that extends through the first and second ends 62, 64 along a central longitudinal axis 72 of the socket 34. The thru-bore 70 is adapted to receive the first axial end 16 of the fluid conduit 12 and the first axial end portion 36 of the nipple 32.
The socket 34 includes a retainer 74. In the depicted embodiment, the retainer 74 is disposed adjacent to the first end 62 of the socket 34. The retainer 74 extends radially into the thru-bore 70 of the socket 34. The retainer 74 is adapted for disposition in the groove 54 of the nipple 32.
The socket 34 includes a plurality of axial protrusions 80. In the depicted embodiment, the axial protrusions 80 extend radially inward from the inner surface 68 of the socket 34. Each of the axial protrusions 80 is elongated along the central longitudinal axis 72 of the socket 34. In the depicted embodiment, each of the axial protrusions 80 includes a first axial end 82 and an oppositely disposed second axial end 84. The first axial ends 82 of the axial protrusions 80 are disposed adjacent to the retainer 74 of the socket 34. The second axial ends 84 are disposed adjacent to the second end 64 of the socket 34.
In the depicted embodiment, there are twelve axial protrusions 80 disposed on the inner surface 68 about the central longitudinal axis 72 of the socket 34. In the depicted embodiment, a width of a base 86 of each axial protrusion 80 is greater than a width of a tip 88.
In one embodiment, each of the axial protrusions 80 including a longitudinal length. The longitudinal length of the axial protrusion 80 is at least about 50% of the length of the socket. The longitudinal length of the axial protrusion 80 extends at least half of a length of the socket 34. In another embodiment, the longitudinal length of the axial protrusion 80 extends at least three-quarters of the length of the socket 34.
In the depicted embodiment, the axial protrusions 80 are tapered in the longitudinal direction. In the depicted embodiment, the longitudinal taper of the axial protrusions 80 is such that an inner diameter defined by the tips 88 of the axial protrusions 80 at the second axial ends 84 of the axial protrusions 80 is greater than an inner diameter defined by the tips 88 at the first axial ends 82.
In the depicted embodiment, the socket 34 defines a plurality of axial grooves 90. The axial grooves 90 and the axial protrusions 80 are alternately disposed on the inner surface 68 of the socket 34 around the central longitudinal axis 72. Each of the axial grooves 90 is elongated along the central longitudinal axis 72 of the socket 34.
Referring now to FIG. 2, the assembly of the fluid conduit assembly 10 will be described. The retainer 74 of the socket 34 is inserted into the groove 54 of the nipple 32. The plurality of axial protrusions 80 of the socket 34 extends in a direction that is generally perpendicular to a direction in which the plurality of ridges 46 of the nipple 32 extend.
With the retainer 74 of the socket 34 disposed in the groove 54 of the nipple 32, the fitting assembly 14 defines an annular cavity 92 between the first axial end portion 36 of the nipple 32 and the socket 34. The first axial end 16 of the fluid conduit 12 is inserted into the annular cavity 92 so that the first axial end portion 36 of the nipple 32 is inserted into the bore 26 of the fluid conduit 12 while at least a portion of the socket 34 is disposed about the outermost layer 22 of the first axial end 16 of the fluid conduit 12. The first axial end 16 of the fluid conduit 12 is inserted into the annular cavity 92 until the first axial end 16 abuts the annular shoulder 48 of the nipple 32.
With the first axial end 16 of the fluid conduit 12 disposed in the annular cavity 92, the outer surface 66 of the socket 34 is compressed (e.g., crimped) radially inward. The radial compression of the socket 34 compresses the fluid conduit 12 between the axial protrusions 80 of the socket 34 and the plurality of ridges 46 of the nipple 32 in order to retain the fitting assembly 14 on the fluid conduit 12.
The axial protrusions 80 of the socket 34 allow the socket 34 to be manufactured using a cold heading process which greatly reduces manufacturing costs. While cold heading can be used to manufacture the body of a conventional socket with annular protrusions on the inner diameter, the annular protrusions need to be machined using a secondary process (e.g., turning). This secondary process negates any cost efficiencies associated with the cold heading process. The axial protrusions 80 allow the socket 34 to be cold headed to net shape without the need for additional processes to form the axial protrusions 80.
Various modifications and alterations of this disclosure will become apparent to those skilled in the art without departing from the scope and spirit of this disclosure, and it should be understood that the scope of this disclosure is not to be unduly limited to the illustrative embodiments set forth herein.

Claims

What is claimed is:
1. A fitting assembly for a fluid conduit comprising:
a nipple having a first axial end portion and an oppositely disposed second axial end portion, the first axial end portion defining a plurality of ridges; and
a socket having a first end and an oppositely disposed second end, the socket having an outer surface and an inner surface, the inner surface defining a thru-bore having a central longitudinal axis, the socket including a plurality of axial protrusions disposed on the inner surface that extends radially inward, the plurality of axial protrusions extending longitudinally along the central longitudinal axis of the socket.
2. The fitting assembly of claim 1, wherein the plurality of axial protrusions extend in a direction that is generally perpendicular to a direction in which the plurality of ridges of the nipple extend.
3. The fitting assembly of claim 1, wherein each of the axial protrusions includes a first axial end and an oppositely disposed second axial end, the first axial end being disposed adjacent to the first end of the socket, the second axial end being disposed adjacent to the second end of the socket.
4. The fitting assembly of claim 1, wherein each of the axial protrusions includes a base and a tip, the base being disposed at the interface with the inner surface, a width of the base being greater than a width of the tip.
5. The fitting assembly of claim 1, wherein a longitudinal length of the axial protrusion is at least 50% of the length of the socket.
6. The fitting assembly of claim 1, wherein each of the axial protrusions includes a longitudinal taper.
7. The fitting assembly of claim 6, wherein each of the axial protrusions includes a first axial end and an oppositely disposed second axial end, an inner diameter defined by the second axial ends of the axial protrusions being greater than an inner diameter defined by the first axial ends of the axial protrusions.
8. The fitting assembly of claim 1, wherein the socket defines a plurality of axial grooves, the axial grooves and the axial protrusions being alternately disposed on the inner surface of the socket around the central longitudinal axis.
9. The fitting assembly of claim 8, wherein the axial grooves extend in a longitudinal direction along the central longitudinal axis.
10. A socket of a fitting assembly adapted for engagement with a fluid conduit comprising a first end and an oppositely disposed second end, the socket having an outer surface and an inner surface, the inner surface defining a thru-bore having a central longitudinal axis, the socket including a plurality of axial protrusions and a plurality of axial grooves, the axial protrusions and axial grooves being alternately disposed on the inner surface and extending longitudinally along the central longitudinal axis of the socket.
11. The socket of claim 10, wherein each of the axial protrusions includes a base and a tip, the base being disposed at the interface with the inner surface, a width of the base being greater than a width of the tip.
12. The socket of claim 10, wherein a longitudinal length of the axial protrusion is at least 50% of the length of the socket.
13. The socket of claim 10, wherein each of the axial protrusions includes a longitudinal taper.
14. The socket of claim 13, wherein each of the axial protrusions includes a first axial end and an oppositely disposed second axial end, an inner diameter defined by the second axial ends of the axial protrusions being greater than an inner diameter defined by the first axial ends of the axial protrusions.
15. A fluid conduit assembly comprising:
a fluid conduit;
a fitting assembly adapted for engagement with the fluid conduit, the fitting assembly including:
a nipple having a first axial end portion and an oppositely disposed second axial end portion, the first axial end portion having a plurality of ridges; and
a socket of a fitting assembly adapted for engagement with the fluid
conduit, the socket having a first end, an oppositely disposed second end, an outer surface and an inner surface, the inner surface defining a thru-bore having a central longitudinal axis, the socket including a plurality of axial protrusions and a plurality of axial grooves, the axial protrusions and axial grooves being alternately disposed on the inner surface and extending longitudinally along the central longitudinal axis of the socket, wherein plurality of axial protrusions extend in a direction that is generally
perpendicular to a direction in which the plurality of ridges of the nipple extend.
16. The fluid conduit assembly of claim 15, wherein each of the axial protrusions of the socket includes a base and a tip, the base being disposed at the interface with the inner surface, a width of the base being greater than a width of the tip.
17. The fluid conduit assembly of claim 15, wherein a longitudinal length of the plurality of axial protrusions is at least 50% of the length of the socket.
18. The fluid conduit assembly of claim 10, wherein each of the axial protrusions includes a longitudinal taper.
19. The fluid conduit assembly of claim 13, wherein each of the axial protrusions includes a first axial end and an oppositely disposed second axial end, an inner diameter defined by the second axial ends of the axial protrusions being greater than an inner diameter defined by the first axial ends of the axial protrusions.
20. A method of manufacturing a socket for a fitting assembly for a fluid conduit comprising:
cold heading material to form the socket, the socket including:
a first end and an oppositely disposed second end;
an outer surface and an inner surface, wherein the inner surface defines a thru -bore having a central longitudinal axis; and
a plurality of axial protrusions disposed on the inner surface that extends radially inward, the plurality of axial protrusions extending longitudinally along the central longitudinal axis of the socket.
PCT/US2016/048881 2015-08-28 2016-08-26 Fluid conduit fitting assembly WO2017040246A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16842667.4A EP3341642A4 (en) 2015-08-28 2016-08-26 Fluid conduit fitting assembly
CA2996298A CA2996298A1 (en) 2015-08-28 2016-08-26 Fluid conduit fitting assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562211232P 2015-08-28 2015-08-28
US62/211,232 2015-08-28

Publications (1)

Publication Number Publication Date
WO2017040246A1 true WO2017040246A1 (en) 2017-03-09

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ID=58188051

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2016/048881 WO2017040246A1 (en) 2015-08-28 2016-08-26 Fluid conduit fitting assembly

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EP (1) EP3341642A4 (en)
CA (1) CA2996298A1 (en)
WO (1) WO2017040246A1 (en)

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US20060277740A1 (en) * 2002-03-22 2006-12-14 Koichi Watanabe Method of attaching hose coupling to hose
JP2013241954A (en) * 2012-05-17 2013-12-05 Toyox Co Ltd Pipe joint
US9021701B1 (en) * 2011-09-26 2015-05-05 Dayco Ip Holdings, Llc Ferrule, hose coupling, and methods of making same

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CA2996298A1 (en) 2017-03-09
EP3341642A4 (en) 2019-05-01

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