WO2008019043A2 - Male coupling for connecting to female threaded coupling - Google Patents
Male coupling for connecting to female threaded coupling Download PDFInfo
- Publication number
- WO2008019043A2 WO2008019043A2 PCT/US2007/017310 US2007017310W WO2008019043A2 WO 2008019043 A2 WO2008019043 A2 WO 2008019043A2 US 2007017310 W US2007017310 W US 2007017310W WO 2008019043 A2 WO2008019043 A2 WO 2008019043A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- locking member
- male coupling
- female threaded
- coupling
- locking
- Prior art date
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 206
- 238000010168 coupling process Methods 0.000 title claims abstract description 206
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 206
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 57
- 238000003780 insertion Methods 0.000 claims abstract description 8
- 230000037431 insertion Effects 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 17
- 229920003023 plastic Polymers 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 229920001084 poly(chloroprene) Polymers 0.000 description 5
- 239000003566 sealing material Substances 0.000 description 5
- 229920001875 Ebonite Polymers 0.000 description 4
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 239000013536 elastomeric material Substances 0.000 description 4
- 210000003414 extremity Anatomy 0.000 description 4
- 239000010985 leather Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- CTFKOMUXSHQLLL-UHFFFAOYSA-N 2,6-ditert-butyl-4-[[1-(hydroxymethyl)cyclopentyl]methyl]phenol Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CC2(CO)CCCC2)=C1 CTFKOMUXSHQLLL-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000001699 lower leg Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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
- F16L37/00—Couplings of the quick-acting type
- F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
- F16L37/04—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an elastic outer part pressing against an inner part by reason of its elasticity
- F16L37/05—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an elastic outer part pressing against an inner part by reason of its elasticity tightened by the pressure of a mechanical element
-
- 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
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/009—Combination of a quick-acting type coupling and a conventional one
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
-
- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
-
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/1215—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using hooks provided with a screw-thread adapted to engage and mesh with an appropriate corresponding part
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/08—Quickly-detachable or mountable nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut
- F16B37/0807—Nuts engaged from the end of the bolt, e.g. axially slidable nuts
Definitions
- the present application relates to fluid couplings and, more particularly, to fluid couplings that are configured to connect to a female threaded coupling.
- Coupling assemblies for the transmission of gases or fluids that may be secured together by axial movement of a male coupling into a female coupling are known in the art.
- a male coupling and a female coupling function as an adapter between a flexible conduit, such as a hose, and an apparatus, such as a pump.
- a flexible conduit such as a hose
- an apparatus such as a pump.
- the female coupling is typically connected to a standard female threaded port in the apparatus.
- a coupling assembly includes first and second members arrangeable between uncoupled and coupled positions.
- the first member has a receiving portion sized to receive at least a portion of the second member and internal threads provided therein.
- the second member has an exterior surface.
- a ratcheting locking member is disposed about the exterior surface of the second member and configured to move between locking and releasing positions.
- the ratcheting locking member is also biased to the locking position and has a retaining formation configured to mesh with and engage the internal threads of the first member.
- the retaining formation of the ratcheting locking member progressively engages the internal threads of the first member, thereby locking the first and second members together.
- a male coupling for connecting to a female threaded port having a receiving portion provided with internal threads.
- the male coupling includes a body having a leading portion, a trailing portion, and an exterior surface. The leading portion is sized to be received by the receiving portion of the female threaded portion.
- the male coupling also includes a number of locking member segments disposed about the body and configured to pivot between locking and releasing positions, where each locking member segment has a retaining formation configured to mesh with and engage the internal threads of the female threaded port.
- the male coupling further includes a resilient biasing element configured to bias each locking member segment to its locking position. Upon insertion of the male coupling into the female threaded port, the retaining formation of each locking member segment progressively engages the internal threads of the female threaded port, thereby locking the male coupling and the female threaded port together.
- FIGs. IA and IB illustrate cross-sectional views of one embodiment of a coupling assembly 10 in its uncoupled and coupled positions, respectively.
- FIGs. 2A-2D illustrate cross-sectional views of the coupling assembly 10 at various stages during the coupling operation.
- FIGs. 3A-3C illustrate cross-sectional views of the coupling assembly 10 at various stages during the uncoupling operation.
- FIG. 4A illustrates a perspective view of one embodiment of a male coupling member 400 configured to connect to a female threaded coupling 402.
- Fig. 4B illustrates a cross-sectional view of the male coupling 400 configured to connect to a female threaded coupling 402, where the male coupling 400 and the female threaded coupling 402 are shown in their uncoupled position.
- Fig. 4C illustrates a cross-sectional view of the male coupling 400 and the female threaded coupling 402 in the coupled position.
- Figs. 5A-5D illustrate cross-sectional views of portions of the male coupling 400 and the female threaded coupling 402 at various stages during the coupling operation.
- Figs. 6A-6C illustrate cross-sectional views of portions of the male coupling 400 and the female threaded coupling 402 at various stages during the uncoupling operation.
- FIG. 7 illustrates a cross-sectional view of a portion of another embodiment of a coupling assembly 700 in its coupled position.
- FIGs. IA and IB Illustrated in Figs. IA and IB are cross-sectional views of one embodiment of a coupling assembly 10 shown in the uncoupled and coupled positions, respectively.
- the coupling assembly 10 includes a first member 12 and a second member 14 that, together, operate as a push-to-connect type coupling assembly, which will be discussed in further detail below.
- the first member 12 generally functions as the "female” member of the coupling assembly 10 and the second member 14 generally functions as the "male” member of the coupling assembly 10, such that the first member 12 is configured to receive the second member 14.
- Both the first and second members 12, 14 share the same central longitudinal axis A when they are in the coupled position as shown in Fig. IB.
- the first and second members 12, 14 can be formed of carbon steel.
- the first and second members 12, 14 can be formed of other materials, such as brass, aluminum, stainless steel, and plastic.
- the first member 12 is a female threaded coupling, such as a female threaded port that includes a receiving portion 16 having a receiving end 18, a remote portion (not shown) having a remote end (not shown), and a passageway 20 extending between the receiving end 18 and the remote end that permits fluid to flow therethrough.
- the remote portion of the first member 12 is provided with external threads for attachment to internal threads of a separate component (not shown).
- the female threaded port can be integrated directly into an apparatus, such as a pump, manifold, etc.
- the first member 12 can include other suitable connection means for attachment to a separate component (not shown).
- the first member 12 includes a first chamfered surface 22 that extends rearward and inward from the receiving end 18.
- a set of internal threads 24 extends rearward from the first chamfered surface 22 and a first interior cylindrical surface 26 extends rearward from the internal threads 24a-i.
- the internal threads 24 have a triangular-shaped profile when viewed in cross- section and include nine threads 24a-i.
- the internal threads 24 can take the form of other profiles (e.g., trapezoidal, square, or rectangular) when viewed in cross-section and include any number of threads.
- the first member 12 may not include the first chamfered surface 22.
- the remote portion of the first member 12 includes a second interior cylindrical surface 30 having an inner diameter that is smaller than the first interior surface 26. Extending forward and outward from the second interior surface 30 is a tapered surface 32 that meets the first interior surface 26.
- the second member 14 includes a collar 34 that separates a leading portion 36 having a leading end 38 from a trailing portion (not shown) having a trailing end (not shown). Extending through the second member 14 from the leading end 38 to the trailing end (not shown) is a passageway 40 that permits fluid to flow therethrough.
- the trailing portion of the second member 14 can be connected to a hose nipple for receiving a hose.
- the trailing portion may be provided with external threads for attachment to internal threads of another component or may be counter-bored for receiving a tube that can be brazed to the second member 14.
- the leading portion 36 of the second member 14 includes a first exterior cylindrical surface 42 and a second exterior cylindrical surface 44 separated from each other by a first outwardly facing annular groove 46 that extends radially inward from the first and second exterior surfaces 42, 44.
- the first groove 46 is at least partially defined by a third exterior cylindrical surface 48.
- the first and second exterior surfaces 42, 44 have the same outer diameter that is sized to be received by the second interior surface 30 of the first member 12. In alternative embodiments (not shown), the first and second exterior surfaces 42, 44 may have different diameters so long as the first exterior surface 42 has an outer diameter that is sized to be received by the second interior surface 30 of the first member 12.
- the first exterior surface 42 of the second member 14 includes a second outwardly facing annular groove 50 extending radially inward therefrom.
- a support ring 52 constructed of a rigid material, such as plastic, leather, or hard rubber
- an annular seal 54 constructed of a suitable sealing material, such as neoprene or another elastomeric material.
- the annular seal 54 is positioned in the second groove 50 between the support ring 52 and the leading end 38 of the second member 14.
- the annular seal 54 is sized for receipt by and to sealingly engage the second interior surface 30 of the first member 12.
- the support ring 52 is sized for receipt by the second interior surface 30 of the first member 12 and serves to protect the annular seal 54 from damage when the coupling assembly 10 is used in high-pressure applications.
- the support ring 52 may be eliminated when the coupling assembly is used in low-pressure applications.
- the annular seal and the support ring may be received in a groove in the second interior surface 30 of the first member 12 and sized to sealingly engage the first exterior surface 42 of the second member 14.
- the coupling assembly 10 also includes a ratcheting locking member configured to lock the first and second members 12, 14 together.
- the ratcheting locking member is in the form of separate ratcheting, locking member segments 56 that are positioned within the first groove 46 of the second member 14 and, together, form the ratcheting locking member.
- the ratcheting locking member includes four locking member segments 56. In alternative embodiments, the ratcheting locking member can include a different number of locking member segments.
- each locking member segment 56 includes an exterior cylindrical surface 58 and an exterior tapered surface 60 that are separated from each other by a retaining formation that is configured to mesh with and engage the internal threads 24 of the of the first member 12 when the second member 14 is inserted into the first member 12, which is discussed in further detail below.
- the retaining formation includes an external partial threaded formation 62 that projects outward from the groove 46 beyond the first exterior surface 42 of the second member 14.
- the threaded formation 62 is characterized as being "partial" due to the fact that the ratcheting locking member is comprised of locking member segments 56.
- each locking member segment 56 comprises only a portion of a threaded formation.
- the locking member segments 56 together, form a threaded formation, although the threads may not be continuous since adjacent locking member segments 56 will have a small space in between them.
- the partial threaded formation 62 includes three triangular-shaped threads 62a-c when viewed in cross-section.
- the partial threaded formation 62 can include a different number of threads and/or the threads can take the form of other shapes when viewed in cross-section (e.g., square, rectangular, or trapezoidal), so long as they are capable of meshing with and engaging the internal threads 24 of the first member 12.
- the retaining formation can include a plurality of discrete radially outward extending projections or protrusions that are capable of engaging the internal threads 24 of the first member 12. In these embodiments, the plurality of discrete radially outward extending projections or protrusions can take the form of any shape and can be arranged in any pattern, so long as they are capable of engaging the internal threads 24 of the first member 12.
- each locking member segment 56 also includes a forward end 64, a rearward end 66, and first and second interior surfaces 68, 70. As shown in Figs. IA and IB, the first and second interior surfaces 68, 70 are oriented at an angle B relative to each other, such that an edge is formed between the first interior surface 68 and the second interior surface 70. This edge defines a pivot axis P (extending out of the drawing) about which each locking member segment 56 pivots. The pivot axis P of each locking member segment 56 is spaced from and oriented perpendicular to the longitudinal axis A of the coupling assembly 10.
- each locking member segment 56 is capable of pivoting between a first position (i.e., a locking position) and a second position (i.e., a releasing position).
- a first position i.e., a locking position
- a second position i.e., a releasing position
- the first interior surface 68 abuts against the third exterior surface 48 of the second member 14 as shown in Figs. IA and IB.
- the locking member segment 56 is pivoted about the pivot axis P in the clockwise direction, such that the second interior surface 70 abuts against the third exterior surface 48 of the second member 14 (not shown).
- each locking member segment 56 need only pivot in the clockwise direction a sufficient amount to provide clearance between the outer extremities of the partial threaded formation 62 of the locking member segments 56 and the inner extremities of the internal threads 24 of the first member 12.
- each locking member segment 56 Provided adjacent to the forward end 64 of each locking member segment 56 is an outwardly facing groove 72 extending radially inward from the exterior surface 58 of each locking member segment 56. Together, the grooves 72 in the locking member segments 56 form an annular groove configured to receive an annular resilient, biasing element 74.
- the biasing element 74 which wraps around all of the locking element segments 56, is configured to bias the locking member segments 56 to their locking positions and due to its resiliency, is capable of: i) expanding radially outwardly when the locking member segments 56 are moved to their releasing positions ii) returning the locking member segments 56 to their locking positions without the need of additional force.
- the biasing element 74 is an O-ring. In alternative embodiments, the biasing element 74 can be a gaiter spring, split retaining ring, or an elastomeric or plastic ring.
- the locking member segments 56 may be rotated 180° and positioned within the first groove 46 such that the retaining formation of the each locking member segment is located closer to the leading end 38 of the second member 14.
- the biasing element would be provided in outwardly facing grooves in the locking member segments 56 adjacent the rearward end of the locking member segments 56.
- the coupling assembly 10 also includes a release sleeve 76 provided between the locking member segments 56 and the collar 34.
- the release sleeve 76 includes a sleeve portion 78 having a forward end 80 and a flange portion 82 that extends radially outward from the sleeve portion 78.
- the sleeve portion 78 of the release sleeve 76 overlaps a portion of the first groove 46 and a portion of the locking member segments 56.
- the locking member segments 56 are retained in the first groove 46 on one side by the biasing element 74 and on the other side by the sleeve portion 78 of the release sleeve 76.
- the release sleeve 76 has a generally L-shaped profile when viewed in cross-section.
- the locking sleeve may take the form of other profiles when viewed in cross- section.
- the release sleeve 76 is seated on the second exterior surface 44 of the body in an axially movable arrangement, such that the release sleeve 76 is movable between rearward and forward positions. Axial travel of the release sleeve 76 is limited in the rearward direction by the collar 34 and in the forward direction by the furthest rearward partial thread 62c of each locking member segment 56. The release sleeve 76 is in its rearward position as shown in Figs. IA and IB.
- the second member 14 is moved forward (in the direction of arrow C) into the first member 12 until the forward most thread 62a of the partial threaded formation 62 of each locking member segment 56 engages the forward most internal thread 24a of the first member 12 (Fig. 2A).
- the thread 24a of the first member 12 interacts with and forces the locking member segments 56 to pivot clockwise (in the direction of arrow D) about the pivot axis P against the urging of the biasing element 74, thereby causing the biasing element 74 to expand radially outward (Fig. 2B).
- the locking member segments 56 pivot clockwise about the pivot axis P until they cam or "ratchet” over the apex of the first thread 24a. As soon as this occurs, the locking member segments 56 return or “spring back” to their locking position due to the resiliency of the biasing element 74, such that the forward most partial thread 62a of the partial thread formation 62 meshes with and engages the forward most thread 24a of the first member 12 (Fig. 2C).
- each locking member segment 56 cams or "ratchets" along the internal threads 24 of the first member 12, by alternating between locking and releasing positions, to progressively mesh with and engage additional internal threads 24 of the first member 12 (i.e., the coupled position of the coupling assembly 10) (Fig. 2D).
- the engagement of the partial threaded formation 62 of the locking member segments 56 to the internal threads 24 of the first member 12 prevents the withdrawal of the second member 14 from the first member 12.
- the annular seal 54 on the second member 14 is sealingly engaged to the second interior surface 30 of the first member 12, thereby preventing fluid leakage.
- the second member 14 is capable of connecting to a female threaded coupling (e.g., the first member 12), a female adapter can be eliminated reducing cost as well as a leak path. Additionally, customers would no longer be required to purchase all of their replacement hoses from the manufacturer of the coupling assembly.
- the release sleeve 76 When it is desired to uncouple the second member 14 from the first member 12, the release sleeve 76 is moved forward (in the direction of arrow E) from its rearward position until it engages the tapered surface 60 of each locking member segment 56 (Fig. 3A). Upon continued forward movement of the release sleeve 76 to its forward position, the release sleeve 76 interacts with and forces the locking member segments 56 to pivot clockwise (in the direction of arrow F) about the pivot axis P against the urging of the biasing element 74, thereby causing the biasing element 74 to expand radially outward. Each locking member segment 56 pivots clockwise until it reaches its releasing position (Fig. 3B).
- each locking member segment 56 is collapsed in the groove 46 to provide the necessary clearance to permit each locking member segment 56 to axially slide past the internal threads 24 of the first member 12. Accordingly, the second member 14 can be disconnected from the first member 12 resulting in the coupling assembly 10 being in the uncoupled position (Fig. 3C).
- Figs. 4A and 4B Illustrated in Figs. 4A and 4B are perspective and cross-sectional views, respectively, of one embodiment of a male coupling 400 configured to be coupled to and separable from a female threaded coupling 402. Together, the male coupling 400 and the female threaded coupling 402 operate as a push-to-connect type coupling assembly, which will be discussed in further detail below.
- the male coupling 400 and the female threaded coupling 402 are in an uncoupled position.
- the female threaded coupling 402 is a female threaded port, such as a standard female threaded port.
- the standard female threaded port can be an SAE O-ring boss port.
- the standard female threaded port can be ISO, DIN or BSPP O-ring ports.
- FIG. 4C Illustrated in Fig. 4C is a cross-sectional view of the male coupling 400 and the female threaded coupling 402 in a coupled position.
- the male coupling 400 and the female threaded coupling 402 function as a coupling assembly to transmit fluid therethrough.
- Both the male coupling 400 and the female threaded coupling 402 share the same central longitudinal axis A when they are in the coupled position as shown in Fig. 4C.
- the male coupling 400 and/or the female threaded coupling 402 can be formed of carbon steel.
- the male coupling 400 and/or the female threaded coupling 402 can be formed of other materials, such as brass, aluminum, stainless steel, and plastic.
- the female threaded coupling 402 includes a receiving portion 404 having a receiving end 406 and a remote portion (not shown) having a remote end. Extending through the female threaded coupling 402 between the receiving end 406 and the remote end (not shown) is a passageway 408 that permits fluid to flow therethrough.
- the remote portion of the female threaded coupling 402 can include external threads for attachment to internal threads of a separate component (not shown) or the female threaded port can be integrated into an apparatus, such as a pump, manifold, etc.
- the female threaded coupling 402 can include other suitable connection means for attachment to a separate component (not shown).
- the female threaded coupling 402 also includes a chamfered surface 410 that extends rearward and inward from the receiving end 406.
- a set of internal threads 412 extend rearward from the chamfered surface 410.
- the internal threads 412 have a triangular-shaped profile when viewed in cross-section and include nine threads 412a-i.
- the internal threads 412 can take the form of other profiles (e.g., trapezoidal, square, or rectangular) when viewed in cross-section and include any number of threads.
- the female threaded coupling 402 may not include the chamfered surface 410.
- the male coupling 400 includes a body 414 having a collar 416 that separates a leading portion 418 having a leading end 420 and a trailing portion (not shown) having a trailing end (not shown). Extending through the body 414 from the leading end 420 to the trailing end (not shown) is a passageway 422 that permits fluid to flow therethrough.
- the trailing portion of the body 414 can include or be connected to a hose nipple for receiving a hose.
- the trailing portion may be provided with external threads for attachment to internal threads of another component or may be counter-bored for receiving a tube that can be brazed to the body 414.
- the leading portion 418 of the body 414 includes a first exterior cylindrical surface 424 and a second exterior cylindrical surface 426 separated from each other by a first outwardly facing annular groove 428 that extends radially inward from the first and second exterior surfaces 424, 426.
- the first groove 428 is at least partially defined by a third exterior cylindrical surface 430.
- first and second exterior surfaces 424, 426 have the same outer diameter that is sized to be received by the internal threads 412 of the female threaded coupling 402.
- first and second exterior surfaces 424, 426 may have different diameters, so long as the first exterior surface 424 has an outer diameter that is sized to be received by the internal threads 412 of the female threaded coupling 402.
- the male coupling 400 also includes a ratcheting lock member to lock the male coupling 400 and the female threaded coupling 402 together.
- the ratcheting locking member is in the form of four separate ratcheting, locking member segments 432 that are positioned within the groove 428 of the body 414 and, together, form the ratcheting locking member.
- the ratcheting locking member can include a different number of locking member segments.
- each locking member segment 432 includes an exterior cylindrical surface 434 and an exterior tapered surface 436 that are separated from each other by a retaining formation that is configured to mesh with and engage the internal threads 412 of the female threaded coupling 402 when the male coupling 400 is inserted into the female threaded coupling 402, which is discussed in further detail below.
- the retaining formation includes an external partial threaded formation 438.
- the partial threaded formation 438 projects outward from the groove 428 beyond the first exterior surface 424 of the body 414.
- the threaded formation 438 is characterized as being "partial" due to the fact that the ratcheting locking member is comprised of locking member segments 432.
- each locking member segment 432 comprises only a portion of a threaded formation.
- the locking member segments 432 together, form a threaded formation, although the threads may not be continuous since adjacent locking member segments 432 will have a small space in between them.
- the partial threaded formation 438 includes three triangular-shaped threads 438a-c when viewed in cross-section.
- the partial threaded formation 438 can include a different number of threads and/or the threads can take the form of other shapes when viewed in cross-section (e.g., square, rectangular, or trapezoidal), so long as they are capable of meshing with and engaging the internal threads 412 of the female threaded coupling 402.
- the retaining formation can include a plurality of discrete radially outward extending projections or protrusions that are capable of engaging the internal threads 412 of the female threaded port 402.
- the plurality of discrete radially outward extending projections or protrusions can take the form of any shape and can be arranged in any pattern, so long as they are capable of engaging the internal threads 412 of the female threaded port 402.
- each locking member segment 432 also includes a forward end 442, a rearward end 444, and first and second interior surfaces 446, 448. As shown in Figs. 4B and 4C, the first and second interior surfaces 446, 448 are oriented at an angle B relative to each other, such that an edge is formed between the first interior surface 446 and the second interior surface 448. This edge defines a pivot axis P (extending out of the drawing) about which each locking member segment 432 pivots. The pivot axis P of each locking member segment 432 is spaced from and oriented perpendicular to the longitudinal axis A.
- each locking member segment 432 is capable of pivoting between a first position (i.e., a locking position) and a second position (i.e., a releasing position).
- a first position i.e., a locking position
- a second position i.e., a releasing position
- the first interior surface 446 abuts against the third exterior surface 430 of the body as shown in Figs. 4B and 4C.
- each locking member segment 432 is pivoted about the pivot axis P in the clockwise direction, such that the second interior surface 448 abuts against the third exterior surface 430 (not shown). It will be appreciated, however, that the releasing position does not necessarily require that the second interior surface 448 of each locking member segment 432 abut against the third exterior surface 430.
- each locking member segment 432 need only pivot in the clockwise direction a sufficient amount to provide clearance between the outer extremities of the partial threaded formation 438 of the locking member segments 432 and the inner extremities of the internal threads 412 of the female threaded port 402.
- each locking member segment 432 Provided adjacent to the forward end 442 of each locking member segment 432 is an outwardly facing groove 450 extending radially inward from the exterior surface 434. Together, the grooves 450 in the locking member segments 432 form an annular groove configured to receive an annular biasing, resilient element 452.
- the biasing element 452 which wraps around all of the locking member segments 432, is configured to bias each locking member segment 432 radially inward to their locking positions and due to its resiliency, is capable of: i) expanding radially outwardly when the locking member segments 432 are moved to their releasing positions, and ii) returning the locking member segments 432 to their locking positions without the need of additional force .
- the biasing element 452 is an O-ring.
- the biasing element 460 can be a garter spring, a split retaining ring, or an elastomeric or plastic ring.
- the locking member segments 432 may be rotated 180° and positioned within the groove 428 such that the retaining formation of the each locking member segment is located closer to the leading end 420 of the male coupling 400.
- the biasing element would be provided in outwardly facing grooves in the locking member segments 432 adjacent the rearward end of the locking member segments 432 .
- the male coupling 400 also includes a release sleeve 454 provided between the locking member segments 432 and the collar 416.
- the release sleeve 454 includes a sleeve portion 456 having an interior cylindrical surface 458 and an exterior cylindrical surface 460, and a flange portion 462 that extends radially outward from the sleeve portion 456 and has an exterior cylindrical surface 464.
- the exterior surface 460 of the sleeve portion 456 and the exterior surface 464 of the shoulder portion 462 define a shoulder 465 therebetween.
- the sleeve portion 456 has a tapered end surface 466 that tapers rearward and towards the longitudinal axis A.
- the release sleeve 454 has a generally L-shaped profile when viewed in cross-section. In alternative embodiments (not shown), the locking sleeve may take the form of other profiles when viewed in cross-section.
- the release sleeve 454 is seated on the second exterior surface 426 of the body in an axially movable arrangement, such that the release sleeve 454 is movable between rearward and forward positions. Axial travel of the release sleeve 454 is limited in the rearward direction by the collar 416 and in the forward direction by the furthest rearward thread 438c of each locking member segment 432. The release sleeve 454 is in its rearward position as shown in Figs. 4B and 4C.
- the exterior surface 464 of the shoulder portion 462 of the release sleeve 454 includes an outwardly facing annular groove 468 extending radially inward therefrom.
- a support ring 470 constructed of a rigid material, such as plastic, leather, or hard rubber, and an annular seal 472 constructed of a suitable sealing material, such as neoprene or another elastomeric material.
- the support ring 470 serves to protect the annular seal 472 from damage when the coupling assembly is used in high-pressure applications. In another embodiment (not shown), the support ring 470 may be eliminated when the male coupling 400 is used in low-pressure applications.
- the second exterior surface 426 of the body includes a second outwardly facing annular groove 474 extending radially inward therefrom.
- a support ring 476 constructed of a rigid material, such as plastic, leather, or hard rubber
- an annular seal 478 constructed of a suitable sealing material, such as neoprene or another elastomeric material.
- the annular seal 478 sealingly engages the interior surface 458 of the release sleeve 454, thereby preventing dust or other contaminants from entering the area forward of the annular seal 478 and keeping the fluid pressure inside the male coupling 400 and the female threaded coupling 402.
- the support ring 476 is sized for receipt by the interior surface 458 of the release sleeve 454 and serves to protect the annular seal 478 from damage when the male coupling 400 is used in high-pressure applications. In an alternative embodiment (not shown), the support ring 476 may be eliminated when the male coupling 400 is used in low-pressure applications.
- the male coupling 400 further includes a release sleeve insert 480 disposed about the release sleeve 454 in an axially movable arrangement relative thereto.
- the release sleeve insert 480 includes a first interior cylindrical surface 482 and a second interior cylindrical surface 484 that are separated from each other by a shoulder 486.
- the first interior surface 482 of the release sleeve insert 480 is sized to receive the sleeve portion 456 of the release sleeve 454.
- the second interior surface 484 has a greater diameter than the first interior surface 482.
- the second interior surface 484 is sized to receive and sealingly engage the annular seal 472 in the groove 468, thereby preventing dust or other contaminants from entering the area forward of the annular seal 472 and keeping the fluid pressure inside the male coupling 400 and the female threaded port 402.
- the second interior surface 484 is also sized to receive the support ring 470 in the groove 468.
- the release sleeve insert 480 further includes a first exterior cylindrical surface 488 and a second exterior cylindrical surface 490 that are separated from each other by a shoulder 492. As shown in Figs. 4B and 4C, the second exterior surface 490 has a greater diameter than the first exterior surface 488, while the first exterior surface 488 has a larger diameter than the second interior surface of the release sleeve insert 480.
- a gap 494 is provided between the shoulder 492 of the release sleeve insert 480 and the shoulder 465 of the release sleeve 454.
- a biasing element 496 Positioned within the gap 494 is a biasing element 496, such as a coil spring, configured to bias the release sleeve insert 480 forward.
- the biasing element 496 is particularly useful when the male coupling 400 is used in low-pressure applications.
- the biasing element 496 may be eliminated when the male coupling 400 is used in high-pressure applications.
- the biasing element 496 may take the form of an annular elastomeric member (e.g., an O-ring), a cylindrical rubber sleeve, or a wave washer (also known as a spring washer).
- the male coupling 400 further includes an annular seal 498 disposed about the first exterior surface 488 of the release sleeve insert 480.
- the annular seal 498 may be constructed of neoprene or other suitable sealing material and is configured to sealingly engage the chamfered surface 410 of the female threaded coupling 402. In the illustrated embodiment, the annular seal 498 has a smaller diameter than the annular seal 472.
- the male coupling 400 is moved forward (in the direction of arrow C) into the female threaded coupling 402 until the forward most partial thread 438a of the partial threaded formation 438 of each locking member segment 432 engages the forward most thread 412a of the female threaded coupling 402 (Fig. 5A).
- the thread 412a of the female threaded coupling 402 interacts with and forces the locking member segments 432 to pivot clockwise (in the direction of arrow D) about the pivot axis P against the urging of the biasing element 452, thereby causing the biasing element 452 to expand radially outward (Fig. 5B).
- the locking member segments 432 pivot clockwise about the pivot axis P until they cam or "ratchet” over the apex of the thread 412a of the female threaded coupling 402. As soon as this occurs, the locking member segments 432 return or “spring back” to their locking position due to the resiliency of the biasing element 452, such that the partial thread 438a of the partial thread formation 438 meshes with and engages the internal thread 412a of the female threaded coupling 402 (Fig.5C).
- each locking member segment 432 cams or "ratchets" along the internal threads 412 of the female threaded coupling 402, by alternating between locking and releasing positions, to progressively mesh with and engage additional internal threads 412 of the female threaded coupling 402 (i.e., the coupled position) (Fig. 5D).
- the engagement of the partial threaded formation 438 of the locking member segments 432 to the internal threads 412 of the female threaded coupling 402 prevents the withdrawal of the male coupling 400 from the female threaded coupling 402.
- the annular seal 498 on the first exterior surface 488 of the release sleeve insert 480 is forced to sealingly engage the chamfered surface 410 of the female threaded coupling 402 by the biasing force of the biasing element 496 pressing against the shoulder 486 of the release sleeve insert 480. Accordingly, this sealing engagement between the male coupling 400 and the female threaded coupling 402 prevents fluid leakage therebetween.
- the annular seal 498 on the first exterior surface 488 of the release sleeve insert 480 is forced to sealingly engage the chamfered surface 410 of the female threaded coupling 402 upon pressurization of the male coupling 400 and the female threaded coupling 402.
- the male coupling 400 is capable of connecting to a female threaded coupling, such as a standard female threaded port, a female adapter can be eliminated reducing cost as well as a leak path. Additionally, customers would no longer be required to purchase all of their replacement hoses from the manufacturer of the coupling assembly. [0067]
- the release sleeve 454 is moved forward (in the direction of arrow E) against the urging of the biasing element 496 until it engages the tapered surface 466 of each locking member segment 432 (Fig. 6A).
- a tool may be used for additional leverage between the shoulder portion 462 of the release sleeve 454 and the collar 416 to assist in moving the release sleeve 454 forward against the biasing force of the biasing element 496.
- the release sleeve 454 Upon continued forward movement of the release sleeve 454 from its rearward position to its forward position, the release sleeve 454 interacts with and forces the locking member segments 432 to pivot clockwise (in the direction of arrow F) about the pivot axis P against the urging of the biasing element 452, thereby causing the biasing element 452 to expand radially outward.
- Each locking member segment 432 pivots clockwise until it reaches its releasing position (Fig. 6B). In this position, each locking member segment 432 is collapsed in the groove 428 and provides the necessary clearance to permit the male coupling 400 to axially slide past the internal threads 412 of the female threaded coupling 402. Accordingly, the male coupling 400 can be disconnected from the female threaded coupling 402 resulting in the two components being in the uncoupled position (Fig. 6C).
- FIG. 7 Illustrated in Fig. 7 is a cross-sectional view of another embodiment of a coupling assembly 700 shown in its coupled position.
- the coupling assembly 700 includes a first member 702 and a second member 704 that, together, operate as a push-to-connect type coupling assembly.
- the first member 702 generally functions as the "female" member of the coupling assembly 700 and the second member 704 generally functions as the "male” member of the coupling assembly 700, such that the first member 702 is configured to receive the second member 704.
- Both the first and second members 702, 704 share the same central longitudinal axis A when they are in the coupled position as shown in Fig. 7.
- the first member 702 is a female threaded coupling, such as a female threaded port that is substantially similar to the first member 12 described above and illustrated in Figs. IA and IB.
- the first member 702 includes a receiving portion having a receiving end 706 and a remote portion (not shown) having a remote end (not shown). Extending through the first member 702 between the receiving end 706 and the remote end (not shown) is a passageway 708 that permits fluid to flow therethrough.
- the first member 702 includes a first chamfered surface 710 that extends rearward and inward from the receiving end 708.
- a set of internal threads 712 extends rearward from the first chamfered surface 710 and a first interior cylindrical surface 714 extends rearward from the internal threads 712a-i.
- the internal threads 712 have a triangular-shaped profile when viewed in cross-section and include nine threads 712a-i.
- the internal threads 712 can take the form of other profiles (e.g., trapezoidal, square, or rectangular) when viewed in cross-section and include any number of threads.
- the first member 702 may not include the chamfered surface 710.
- the second member 704 is similar to the second member 14 described above and illustrated in Figs. IA and IB. Specifically, the second member 704 includes a collar 716 that separates a leading portion having a leading end 718 from a trailing portion (not shown) having a trailing end (not shown). Extending through the second member 704 from the leading end 718 to the trailing end (not shown) is a passageway 720 that permits fluid to flow therethrough.
- the leading portion of the second member 704 includes a first exterior cylindrical surface 722 and a second exterior cylindrical surface 724 separated from each other by a first outwardly facing annular groove 726 that extends radially inward from the first and second exterior surfaces 716, 718.
- the first groove 726 is at least partially defined by a third exterior cylindrical surface 728 and a radially extending concave surface 730 that joins the first and third exterior surfaces 722, 728 together.
- the concave surface 730 forms a lip 732 that extends axially into a portion of the first groove 726.
- the first exterior surface 722 of the second member 704 includes a second outwardly facing annular groove 734 extending radially inward therefrom.
- a support ring 736 constructed of a rigid material, such as plastic, leather, or hard rubber
- an annular seal 738 constructed of a suitable sealing material, such as neoprene or another elastomeric material.
- the annular seal 738 is positioned in the second groove 734 between the support ring 736 and the leading end 718 of the second member 704.
- the coupling assembly 700 also includes a ratcheting locking member configured to lock the first and second members 702, 704 together.
- the ratcheting locking member is in the form of separate ratcheting, locking member segments 740 that are positioned within the first groove 726 and, together, form the ratcheting locking member.
- the ratcheting locking member includes four locking member segments 740. In alternative embodiments, the ratcheting locking member can include a different number of locking member segments.
- each locking member segment 740 includes a first exterior surface 742 and a second exterior surface 744 that are separated from each other by a retaining formation that is configured to mesh with and engage the internal threads 712 of the first member 702 when the second member 704 is inserted into the first member 702, which is discussed in further detail below.
- the retaining formation includes an external partial threaded formation 746 that projects outward from the first groove 726 beyond the first exterior surface 722.
- the partial threaded formation 746 includes three triangular-shaped threads when viewed in cross-section.
- the partial threaded formation 746 can include a different number of threads and/or the threads can take the form of other shapes when viewed in cross-section (e.g., square, rectangular, or trapezoidal), so long as they are capable of meshing with and engaging the internal threads 712 of the first member 702.
- the retaining formation can include a plurality of discrete radially outward extending projections or protrusions that are capable of engaging the internal threads 712 of the first member 702.
- each locking member segment 740 also includes a curved forward end 748, a rearward end 750, and first and second converging interior surfaces 752, 754 that form a recess between them.
- the curved forward end 748 of each locking member segment 738 is seated in the concave surface 730 of the second member 704, permitting each locking member segment 740 to pivot relative to the second member 704 between a locking position (as shown in Fig. 7) and a releasing position (not shown).
- a resilient compressible member 756, such as an O-ring or garter spring Disposed between the locking member segments 740 and the third exterior surface 728 of the second member 704 is a resilient compressible member 756, such as an O-ring or garter spring.
- the resilient compressible member 756 is configured to bias the locking member segments 740 to their locking positions and is capable of: i) compressing radially inwardly due to its compressibility when the locking member segments 740 are moved to their releasing positions and ii) returning the locking member segments 740 to their locking positions without the need of additional force due to its resiliency. It will be appreciated that the arrangement of the locking member segments 740 and the resilient compressible member 756 described above can be used in the male coupling 400 described above and illustrated in Figs. 4A-4C.
- the locking member segments 740 may be rotated 180° and positioned within the first groove 726 such that the retaining formation of the each locking member segment is located closer to the leading end 718 of the second member 704.
- the biasing element would be provided in outwardly facing grooves in the locking member segments 740 adjacent the rearward end of the locking member segments 740 .
- the coupling assembly 700 also includes a release sleeve 758 provided between the locking member segments 740 and the collar 716.
- the release sleeve 758 includes a sleeve portion 760 and a flange portion 762 that extends radially outward from the sleeve portion 760.
- the sleeve portion 760 of the release sleeve 758 overlaps a portion of the first groove 726 and a portion of the rearward end 750 of the locking member segments 740.
- the locking member segments 740 are retained in the first groove 726 by the lip 732 of the second member 704 and by the sleeve portion 760 of the release sleeve 758.
- the release sleeve 758 is seated on the second exterior surface 724 of the body in an axially movable arrangement, such that it is movable between rearward and forward positions. Axial travel of the release sleeve 758 is limited in the rearward direction by the collar 716 and in the forward direction by the furthest rearward partial thread 746 of each locking member segment 740. The release sleeve 758 is in its rearward position as shown in Fig. 7.
- the coupling operation of the coupling assembly 700 is similar to the coupling operation described above and illustrated in Figs. 2A-2D. Additionally, the uncoupling operation of the coupling assembly 700 is similar to the uncoupling operation described above and illustrated in Figs. 3A-3C.
- cylindrical surfaces discussed above may be replaced with a surface having a linear profile that is angled relative to the longitudinal axis A of the coupling assembly (e.g., tapered surfaces) or a curved surface (e.g., convex or concave surfaces).
- a curved surface e.g., convex or concave surfaces.
- one or more of the tapered or chamfered surfaces discussed above may be replaced with a cylindrical surface relative to the longitudinal axis A of the coupling assembly (e.g., tapered surfaces) or a curved surface (e.g., convex or concave surfaces)
- the male couplings described above have applicability in areas other than fluid connectors.
- a device that includes one of the male couplings described above, particularly the ratcheting locking member and the release sleeve can be used as a push-to-connect type fastening device that connects to a female thread in a separate device.
- the components need not transport fluid.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2009001316A MX2009001316A (en) | 2006-08-03 | 2007-08-03 | Male coupling for connecting to female threaded coupling. |
JP2009522878A JP2009545715A (en) | 2006-08-03 | 2007-08-03 | Male coupling for connection with female threaded coupling |
AU2007282005A AU2007282005A1 (en) | 2006-08-03 | 2007-08-03 | Male coupling for connecting to female threaded coupling |
CA002659838A CA2659838A1 (en) | 2006-08-03 | 2007-08-03 | Male coupling for connecting to female threaded coupling |
EP07836461A EP2047168A2 (en) | 2006-08-03 | 2007-08-03 | Male coupling for connecting to female threaded coupling |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82131706P | 2006-08-03 | 2006-08-03 | |
US60/821,317 | 2006-08-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008019043A2 true WO2008019043A2 (en) | 2008-02-14 |
WO2008019043A3 WO2008019043A3 (en) | 2008-05-08 |
Family
ID=39033478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/017310 WO2008019043A2 (en) | 2006-08-03 | 2007-08-03 | Male coupling for connecting to female threaded coupling |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP2047168A2 (en) |
JP (1) | JP2009545715A (en) |
KR (1) | KR20090050064A (en) |
CN (1) | CN101517301A (en) |
AU (1) | AU2007282005A1 (en) |
CA (1) | CA2659838A1 (en) |
MX (1) | MX2009001316A (en) |
WO (1) | WO2008019043A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2087266A2 (en) * | 2006-09-22 | 2009-08-12 | Eaton Corporation | Male coupling for connecting to female threaded coupling |
GB2624915A (en) * | 2022-11-30 | 2024-06-05 | Aliaxis Uk Ltd | A pipe connector |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105402384B (en) * | 2015-12-16 | 2018-05-29 | 力帆实业(集团)股份有限公司 | The connection structure and a kind of automobile of a kind of oil-cooled tube and oil cooler |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5649723A (en) * | 1993-09-20 | 1997-07-22 | Aga Aktiebolag | Coupling device |
US5788443A (en) * | 1997-03-13 | 1998-08-04 | Thread Technology, Inc. | Male coupling with movable threaded segments |
US5996654A (en) * | 1997-08-21 | 1999-12-07 | Green; Edward E. | Quick-connect filling device for transferring fluids to a valve |
US6964435B2 (en) * | 2002-02-18 | 2005-11-15 | Walterscheid Rohrverbindungstechnik Gmbh | Coupling for connecting hydraulic ducts |
-
2007
- 2007-08-03 WO PCT/US2007/017310 patent/WO2008019043A2/en active Application Filing
- 2007-08-03 JP JP2009522878A patent/JP2009545715A/en active Pending
- 2007-08-03 CA CA002659838A patent/CA2659838A1/en not_active Abandoned
- 2007-08-03 AU AU2007282005A patent/AU2007282005A1/en not_active Abandoned
- 2007-08-03 MX MX2009001316A patent/MX2009001316A/en active IP Right Grant
- 2007-08-03 KR KR1020097004463A patent/KR20090050064A/en not_active Application Discontinuation
- 2007-08-03 EP EP07836461A patent/EP2047168A2/en not_active Withdrawn
- 2007-08-03 CN CNA2007800354362A patent/CN101517301A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5649723A (en) * | 1993-09-20 | 1997-07-22 | Aga Aktiebolag | Coupling device |
US5788443A (en) * | 1997-03-13 | 1998-08-04 | Thread Technology, Inc. | Male coupling with movable threaded segments |
US5996654A (en) * | 1997-08-21 | 1999-12-07 | Green; Edward E. | Quick-connect filling device for transferring fluids to a valve |
US6964435B2 (en) * | 2002-02-18 | 2005-11-15 | Walterscheid Rohrverbindungstechnik Gmbh | Coupling for connecting hydraulic ducts |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2087266A2 (en) * | 2006-09-22 | 2009-08-12 | Eaton Corporation | Male coupling for connecting to female threaded coupling |
EP2087266A4 (en) * | 2006-09-22 | 2014-03-19 | Eaton Corp | Male coupling for connecting to female threaded coupling |
GB2624915A (en) * | 2022-11-30 | 2024-06-05 | Aliaxis Uk Ltd | A pipe connector |
WO2024115869A1 (en) * | 2022-11-30 | 2024-06-06 | Aliaxis Uk Limited | A pipe connector |
Also Published As
Publication number | Publication date |
---|---|
MX2009001316A (en) | 2009-03-16 |
CN101517301A (en) | 2009-08-26 |
AU2007282005A1 (en) | 2008-02-14 |
CA2659838A1 (en) | 2008-02-14 |
KR20090050064A (en) | 2009-05-19 |
JP2009545715A (en) | 2009-12-24 |
WO2008019043A3 (en) | 2008-05-08 |
EP2047168A2 (en) | 2009-04-15 |
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