CA2411580A1 - Quick coupling for hydraulic lines - Google Patents
Quick coupling for hydraulic lines Download PDFInfo
- Publication number
- CA2411580A1 CA2411580A1 CA 2411580 CA2411580A CA2411580A1 CA 2411580 A1 CA2411580 A1 CA 2411580A1 CA 2411580 CA2411580 CA 2411580 CA 2411580 A CA2411580 A CA 2411580A CA 2411580 A1 CA2411580 A1 CA 2411580A1
- Authority
- CA
- Canada
- Prior art keywords
- coupling
- extension conduit
- female
- hydraulic lines
- male
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
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
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
- F16L37/367—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings with two gate valves or sliding valves
-
- 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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/005—Branching pipes; Joining pipes to walls adjustable and comprising a hollow threaded part in an opening
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
A quick coupling for hydraulic lines includes a first body and a second body. Relative movement of the first body and the second body is provided between a first position in which the first body and the second body are engaged and a second position in which the first body and the second body are in spaced relation. A male coupling is provided on the first body. A female coupling is provided on the second body. One or more extension conduits are provided, each of which have a first end, a second end and an axis. The first end of each extension conduit is coupled to either the male coupling or the female coupling. The second end of each extension conduit is sealingly engaged in an oversized bore in either the first body or the second body. The extension conduit is secured within the oversized bore against axial movement and is capable of limited lateral movement within the oversized bore to accommodate misalignment.
Description
TITLE OF THE INVENTION:
Quick coupling for hydraulic lines FIELD OF THE INVENTION
The present invention relates to a quick coupling for hydraulic lines BACKGROUND OF THE INVENTION
Quick couplings are used in hydraulic applications, as an alternative to coping with lengthy hydraulic lines. For example, with machinery having doors, a length of hydraulic line sufficient to allow the doors to be fully opened must be accommodated when the doors are closed. An alternative approach in such situations is to provide a quick coupling with automatic shut-off valves on the hydraulic lines. This enables hydraulic hoses to be disconnected when the door is fully open, the automatic shut-off valves automatically shutting off the supply of high-pressure hydraulic fluid.
When the doors are closed, components of the quick coupling mate and restore the supply of high pressure hydraulic fluid needed for operation.
To achieve reliability in quick coupling systems, the mating components of the quick coupling must align accurately. Unfortunately, wear frequently causes misalignment, which adversely affects functioning of the quick coupling system and creates stresses that lead to premature failure.
SUi~iARY OF THE INVENTION
What is required is a quick coupling for hydraulic lines that is less prone to failure due to misalignment.
According to the present invention there is provided a quick coupling for hydraulic lines which includes a first body and a second body. Means is provided for effecting relative movement of the first: body and the second body between a first position i.n which the first body and the second body are engaged and a second position in which the first body and the second body are in spaced relation. A
male coupling is provided on the first body. A female coupling is provided on the second body. One or more extension conduits are provided, each of which have a first end, a second end and an axis. The first end of each extension conduit is coupled to either the male coupling or the female coupling. The second end of each extension conduit is sealingly engaged in an oversized bore in either the first body or the second body. The extension conduit is secured within the oversized bore against axial movement and is capable of limited lateral movement within the oversized bore to accommodate misalignment.
With the quick coupling for hydraulic lines, as described above, either the male coupling, the female coupling or both, are positioned at the end of one of the extension conduits within oversized bores. The extension conduits move laterally within the oversized bores to accommodate misalignment.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
FIGURE 1 is a side elevation view, in section, of a quick coupling for hydraulic lines constructed in accordance with the teachings of the present invention, the first body and the second body being in the first position with the quick coupling engaged.
FIGURE 2 is a side elevation view, in section, of the quick coupling for hydraulic lines illustrated in FIGURE 1, the first body and the second body being in the second position with the quick coupling disengaged.
FIGURE 3 is a side elevation view, in section, of the quick coupling for hydraulic lines illustrated in FIGS 1, the first body and the second body being in the first position with the quick coupling engaged.
FIGURE 4 is a detailed side elevation view, in section, of a male coupling of the quick coupling for hydraulic lines illustrated in FI~
FIGURE 5 is a detailed side elevation view, in section, of a female coupling of the quick coupling for hydraulic lines illustrated in FIGURE 1.
FIGURE 6 is a detailed end elevation view, in section, of an extension conduit and first oversize bore of the quick coupling for hydraulic lines illustrated in FIGURE 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a quick coupling for hydraulic lines generally identified by reference numeral 10, will now be described with reference to FIGURES 1 through 6.
Structure and Relationship of Parts:
Referring to FIGURE 1. for purposes of illustration there is shown a portion of a door assembly and hydraulic system of a blow out preventer in order to illustrate the use of quick coupling 10. A first body 12 (in this case a door) is provided having at least one male coupling generally referred to as numeral 16. A second body 14 (in this case the blow out preventer housing) is provided having at least one female coupling generally referred to as numeral 18.
First body 12 and second body 14 are movable between a first position in which first body 12 and second body 14 are engaged as illustrated in GIGO 1 and a second position in which first body 12 and second body 14 are in spaced relation as illustrated in FIGURE 2. Referring to GIGO 1, when first body 12 and second body 14 are in the first position, male coupling 16 engages female coupling 18. Referring to FIGURE
2, when first body 12 and second body 14 are in the second position, male coupling 16 and female coupling 18 are disengaged. In order to prevent the loss of hydraulic fluid when male coupling 16 and female coupling 18 are disengaged, a first auto shut-off valve 20 is positioned within male coupling 16 and a second auto shut-off valve 22 is positioned within female coupling 18. Referring to FIGURE 1. an extension conduit 24 is provided having a first end 26, a second end 28 and an axis, generally indicated by reference numeral 30. First end 26 of extension conduit 24 is coupled to either male coupling 16 or female coupling 18. In the illustrated embodiment, it is female coupling 18 which is shown as being coupled to first end 26 of extension conduit 24. Referring to FIGURE 5, extension conduit 24 is positioned within an oversized bore - a first portion of which is identified by reference numeral 32 and a second portion of which is identified by reference numeral 33. First portion 32 and second portion 33 of the oversized bore, which accommodate extension conduit 24 and female coupling 18 respectively, can be in either first body I2 or second body 14. In the illustrated embodiment, first portion 32 and second portion 33 of the oversized bore are positioned in second body 14. A first annular clearance space 34 is provided between first end 26 of extension conduit 24 and first portion 32 of the oversized bore as illustrated in 5 FIGURE 6- Referring to FIGS 5, this enables extension conduit 24 to be capable of limited lateral movement.
Similarly, a second annular clearance space 35 is provided between female coupling 18 and second portion 33 of the oversize bore. This enables extension conduit 24 in conjunction with female coupling 18 to be capable of limited lateral movement in order to accommodate misalignment between male coupling 16 and female coupling 18. Referring to FIGURE 1~ second end 28 of extension conduit 24 is sealed by a series of annular seals 36 which sealingly engages first portion 32 of the oversized bore. Referring to FIGURE 2.
extension conduit 24 is secured against axial movement in a first axial direction indicated by arrow 38 by a flange 40 at first end 26 of. extension conduit 24 which engages an annular shoulder 42 situate between first portion 32 and second portion 33 of the oversize bore. Referring to FIGURE 3~
extension conduit 24 is secured against axial movement in a second axial direction indicated by arrow 44 by a stop ring 46 secured in place around extension conduit 24 by a snap ring 48.
The remaining aspects of quick coupler 10, not directly related to the inventive concept, will now be described.
Referring to FIGURE 1, a main fluid distribution element 50 delivers fluid to the hydraulic system. Referring to FIGURE
4, in order to facilitate placing auto shut-off valve 20 within male coupling 16, male coupling 16 comes in two portions, first male portion 16a and second male portion 16b.
A first 0-ring seal 52 is positioned between first male portion 16a and second male portion 16b. A second 0-ring seal 54 is positioned where first male portion 16a is inserted into first body 12. A backup ring 56 is positioned on male coupling 16 adjacent t:o first body 12. Referring to FIGURES 2 through 5, male coupling 16 and extension conduit 24 are further adapted with main seals 58. Referring to FIGURE 5~ in order to facilitate placing auto shut-off valve 22 within female coupling 18, female coupling 18 comes in two portions, first female portion 18a and second female portion 18b. Referring to FIGURES 4 and 5, both auto shut-off valve 20 and auto shut-off valve 22 have fixed portions (20a,22a) and moveable portions (20b,22b). Both auto shut-off valve 20 and auto shut-off valve 22 have a spring 60 positioned between fixed portions (20a,22a) and movable portions (20b,22b) which biases movable portions (20b,22b) against tapered sealing seats 62. In order to complete sealing, a third 0-ring seal 64 is positioned between first female portion 18a and second female portion 18b. A fourth 0-ring seal 66 is positioned between second female portion 18b and extension conduit 24. Female coupling 18 is further adapted with a diaphragm and seal combination 68, which prevents leakage when male coupling 16 is inserted into female coupling 18.
Operation:
The use and operation of a quick coupling for hydraulic lines generally identified by reference numeral 10, will now be described with reference to FIGURES 1 through 6. The weight of a door acting upon its hinges, tends to cause hinge assemblies tend to wear over time. When this occurs the doors tend to sag. For the reliable engagement of hydraulically actuated door assemblies, allowance must be made for the misalignment of the doors over time. Male couplings and female couplings for hydraulic lines are not intended to bear weight in normal usage. However, when a door is out of alignment, weight is placed upon the couplings beyond their design capabilities leading to failure.
According to the teachings of the present invention, first portion 32 and second portion 33 of the oversized bore accommodates limited movement of female coupling 18 within clearance space 35. This movement is, in turn, accommodated by movement of extension conduit 24 within clearance space 34. Although female coupling 18 is free to move up and down and from side to side to accommodate a certain degree of misalignment, female coupling 18 remains axially fixed.
Flange 40 acting on annular shoulder 42 prevents axial movement of extension conduit 24 in a direction indicated by arrow 38 are male coupling 16 and female coupling 18 are engaged. Stop ring 46 with snap ring 48 limit extension conduit 24 from moving in a direction indicated by arrow 44 as male coupling 16 and female coupling 18 are disengaged.
The flow of hydraulic fluid through male coupling 16 and female coupling 18 is controlled by auto shut-off valve 20 and auto shut-off valve 22. Referring to FIGURE 3. when male coupling 16 and a female coupling 18 mate, first auto shut-off valve 20 and second auto shut-off valve 22 engage to compress springs 60, allowing hydraulic fluid into the system and a successful hydraulic engagement results. Referring to FIGURE 2, when male coupling 16 is withdrawn from female coupling 18, springs 60 bias movable portions 20b and 22b back into engagement with sc=aling seat 62 to automatically close and terminate the supply of hydraulic fluid to the system.
Variations:
Quick coupling 10 has been illustrated and described in use with a closure door. The principles applicable apply whether the closure door is held in place on studs or swings on a hinge. Regardless of the movement of the closure door, there will be some degree of misalignment. This misalignment can be accommodated by quick coupling 10.
In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Quick coupling for hydraulic lines FIELD OF THE INVENTION
The present invention relates to a quick coupling for hydraulic lines BACKGROUND OF THE INVENTION
Quick couplings are used in hydraulic applications, as an alternative to coping with lengthy hydraulic lines. For example, with machinery having doors, a length of hydraulic line sufficient to allow the doors to be fully opened must be accommodated when the doors are closed. An alternative approach in such situations is to provide a quick coupling with automatic shut-off valves on the hydraulic lines. This enables hydraulic hoses to be disconnected when the door is fully open, the automatic shut-off valves automatically shutting off the supply of high-pressure hydraulic fluid.
When the doors are closed, components of the quick coupling mate and restore the supply of high pressure hydraulic fluid needed for operation.
To achieve reliability in quick coupling systems, the mating components of the quick coupling must align accurately. Unfortunately, wear frequently causes misalignment, which adversely affects functioning of the quick coupling system and creates stresses that lead to premature failure.
SUi~iARY OF THE INVENTION
What is required is a quick coupling for hydraulic lines that is less prone to failure due to misalignment.
According to the present invention there is provided a quick coupling for hydraulic lines which includes a first body and a second body. Means is provided for effecting relative movement of the first: body and the second body between a first position i.n which the first body and the second body are engaged and a second position in which the first body and the second body are in spaced relation. A
male coupling is provided on the first body. A female coupling is provided on the second body. One or more extension conduits are provided, each of which have a first end, a second end and an axis. The first end of each extension conduit is coupled to either the male coupling or the female coupling. The second end of each extension conduit is sealingly engaged in an oversized bore in either the first body or the second body. The extension conduit is secured within the oversized bore against axial movement and is capable of limited lateral movement within the oversized bore to accommodate misalignment.
With the quick coupling for hydraulic lines, as described above, either the male coupling, the female coupling or both, are positioned at the end of one of the extension conduits within oversized bores. The extension conduits move laterally within the oversized bores to accommodate misalignment.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings, the drawings are for the purpose of illustration only and are not intended to in any way limit the scope of the invention to the particular embodiment or embodiments shown, wherein:
FIGURE 1 is a side elevation view, in section, of a quick coupling for hydraulic lines constructed in accordance with the teachings of the present invention, the first body and the second body being in the first position with the quick coupling engaged.
FIGURE 2 is a side elevation view, in section, of the quick coupling for hydraulic lines illustrated in FIGURE 1, the first body and the second body being in the second position with the quick coupling disengaged.
FIGURE 3 is a side elevation view, in section, of the quick coupling for hydraulic lines illustrated in FIGS 1, the first body and the second body being in the first position with the quick coupling engaged.
FIGURE 4 is a detailed side elevation view, in section, of a male coupling of the quick coupling for hydraulic lines illustrated in FI~
FIGURE 5 is a detailed side elevation view, in section, of a female coupling of the quick coupling for hydraulic lines illustrated in FIGURE 1.
FIGURE 6 is a detailed end elevation view, in section, of an extension conduit and first oversize bore of the quick coupling for hydraulic lines illustrated in FIGURE 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment, a quick coupling for hydraulic lines generally identified by reference numeral 10, will now be described with reference to FIGURES 1 through 6.
Structure and Relationship of Parts:
Referring to FIGURE 1. for purposes of illustration there is shown a portion of a door assembly and hydraulic system of a blow out preventer in order to illustrate the use of quick coupling 10. A first body 12 (in this case a door) is provided having at least one male coupling generally referred to as numeral 16. A second body 14 (in this case the blow out preventer housing) is provided having at least one female coupling generally referred to as numeral 18.
First body 12 and second body 14 are movable between a first position in which first body 12 and second body 14 are engaged as illustrated in GIGO 1 and a second position in which first body 12 and second body 14 are in spaced relation as illustrated in FIGURE 2. Referring to GIGO 1, when first body 12 and second body 14 are in the first position, male coupling 16 engages female coupling 18. Referring to FIGURE
2, when first body 12 and second body 14 are in the second position, male coupling 16 and female coupling 18 are disengaged. In order to prevent the loss of hydraulic fluid when male coupling 16 and female coupling 18 are disengaged, a first auto shut-off valve 20 is positioned within male coupling 16 and a second auto shut-off valve 22 is positioned within female coupling 18. Referring to FIGURE 1. an extension conduit 24 is provided having a first end 26, a second end 28 and an axis, generally indicated by reference numeral 30. First end 26 of extension conduit 24 is coupled to either male coupling 16 or female coupling 18. In the illustrated embodiment, it is female coupling 18 which is shown as being coupled to first end 26 of extension conduit 24. Referring to FIGURE 5, extension conduit 24 is positioned within an oversized bore - a first portion of which is identified by reference numeral 32 and a second portion of which is identified by reference numeral 33. First portion 32 and second portion 33 of the oversized bore, which accommodate extension conduit 24 and female coupling 18 respectively, can be in either first body I2 or second body 14. In the illustrated embodiment, first portion 32 and second portion 33 of the oversized bore are positioned in second body 14. A first annular clearance space 34 is provided between first end 26 of extension conduit 24 and first portion 32 of the oversized bore as illustrated in 5 FIGURE 6- Referring to FIGS 5, this enables extension conduit 24 to be capable of limited lateral movement.
Similarly, a second annular clearance space 35 is provided between female coupling 18 and second portion 33 of the oversize bore. This enables extension conduit 24 in conjunction with female coupling 18 to be capable of limited lateral movement in order to accommodate misalignment between male coupling 16 and female coupling 18. Referring to FIGURE 1~ second end 28 of extension conduit 24 is sealed by a series of annular seals 36 which sealingly engages first portion 32 of the oversized bore. Referring to FIGURE 2.
extension conduit 24 is secured against axial movement in a first axial direction indicated by arrow 38 by a flange 40 at first end 26 of. extension conduit 24 which engages an annular shoulder 42 situate between first portion 32 and second portion 33 of the oversize bore. Referring to FIGURE 3~
extension conduit 24 is secured against axial movement in a second axial direction indicated by arrow 44 by a stop ring 46 secured in place around extension conduit 24 by a snap ring 48.
The remaining aspects of quick coupler 10, not directly related to the inventive concept, will now be described.
Referring to FIGURE 1, a main fluid distribution element 50 delivers fluid to the hydraulic system. Referring to FIGURE
4, in order to facilitate placing auto shut-off valve 20 within male coupling 16, male coupling 16 comes in two portions, first male portion 16a and second male portion 16b.
A first 0-ring seal 52 is positioned between first male portion 16a and second male portion 16b. A second 0-ring seal 54 is positioned where first male portion 16a is inserted into first body 12. A backup ring 56 is positioned on male coupling 16 adjacent t:o first body 12. Referring to FIGURES 2 through 5, male coupling 16 and extension conduit 24 are further adapted with main seals 58. Referring to FIGURE 5~ in order to facilitate placing auto shut-off valve 22 within female coupling 18, female coupling 18 comes in two portions, first female portion 18a and second female portion 18b. Referring to FIGURES 4 and 5, both auto shut-off valve 20 and auto shut-off valve 22 have fixed portions (20a,22a) and moveable portions (20b,22b). Both auto shut-off valve 20 and auto shut-off valve 22 have a spring 60 positioned between fixed portions (20a,22a) and movable portions (20b,22b) which biases movable portions (20b,22b) against tapered sealing seats 62. In order to complete sealing, a third 0-ring seal 64 is positioned between first female portion 18a and second female portion 18b. A fourth 0-ring seal 66 is positioned between second female portion 18b and extension conduit 24. Female coupling 18 is further adapted with a diaphragm and seal combination 68, which prevents leakage when male coupling 16 is inserted into female coupling 18.
Operation:
The use and operation of a quick coupling for hydraulic lines generally identified by reference numeral 10, will now be described with reference to FIGURES 1 through 6. The weight of a door acting upon its hinges, tends to cause hinge assemblies tend to wear over time. When this occurs the doors tend to sag. For the reliable engagement of hydraulically actuated door assemblies, allowance must be made for the misalignment of the doors over time. Male couplings and female couplings for hydraulic lines are not intended to bear weight in normal usage. However, when a door is out of alignment, weight is placed upon the couplings beyond their design capabilities leading to failure.
According to the teachings of the present invention, first portion 32 and second portion 33 of the oversized bore accommodates limited movement of female coupling 18 within clearance space 35. This movement is, in turn, accommodated by movement of extension conduit 24 within clearance space 34. Although female coupling 18 is free to move up and down and from side to side to accommodate a certain degree of misalignment, female coupling 18 remains axially fixed.
Flange 40 acting on annular shoulder 42 prevents axial movement of extension conduit 24 in a direction indicated by arrow 38 are male coupling 16 and female coupling 18 are engaged. Stop ring 46 with snap ring 48 limit extension conduit 24 from moving in a direction indicated by arrow 44 as male coupling 16 and female coupling 18 are disengaged.
The flow of hydraulic fluid through male coupling 16 and female coupling 18 is controlled by auto shut-off valve 20 and auto shut-off valve 22. Referring to FIGURE 3. when male coupling 16 and a female coupling 18 mate, first auto shut-off valve 20 and second auto shut-off valve 22 engage to compress springs 60, allowing hydraulic fluid into the system and a successful hydraulic engagement results. Referring to FIGURE 2, when male coupling 16 is withdrawn from female coupling 18, springs 60 bias movable portions 20b and 22b back into engagement with sc=aling seat 62 to automatically close and terminate the supply of hydraulic fluid to the system.
Variations:
Quick coupling 10 has been illustrated and described in use with a closure door. The principles applicable apply whether the closure door is held in place on studs or swings on a hinge. Regardless of the movement of the closure door, there will be some degree of misalignment. This misalignment can be accommodated by quick coupling 10.
In this patent document, the word "comprising" is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article "a" does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be one and only one of the elements.
It will be apparent to one skilled in the art that modifications may be made to the illustrated embodiment without departing from the spirit and scope of the invention as hereinafter defined in the Claims.
Claims
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A quick coupling for hydraulic lines, comprising:
a first body;
a second body;
the first body and the second body being movable between a first position in which the first body and the second body are engaged and a second position in which the first body and the second body are in spaced relation;
a male coupling on the first body;
a female coupling on the second body;
at least one extension conduit being provided having a first end, a second end and an axis, the first end of the extension conduit being coupled to one of the male coupling or the female coupling, the second end of the extension conduit being sealingly engaged in an oversized bore in one of the first body or the second body, the extension conduit being secured within the oversized bore against axial movement and being capable of limited lateral movement within the oversized bore to accommodate misalignment.
a first body;
a second body;
the first body and the second body being movable between a first position in which the first body and the second body are engaged and a second position in which the first body and the second body are in spaced relation;
a male coupling on the first body;
a female coupling on the second body;
at least one extension conduit being provided having a first end, a second end and an axis, the first end of the extension conduit being coupled to one of the male coupling or the female coupling, the second end of the extension conduit being sealingly engaged in an oversized bore in one of the first body or the second body, the extension conduit being secured within the oversized bore against axial movement and being capable of limited lateral movement within the oversized bore to accommodate misalignment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2411580 CA2411580A1 (en) | 2002-11-12 | 2002-11-12 | Quick coupling for hydraulic lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2411580 CA2411580A1 (en) | 2002-11-12 | 2002-11-12 | Quick coupling for hydraulic lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2411580A1 true CA2411580A1 (en) | 2004-05-12 |
Family
ID=32399877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2411580 Abandoned CA2411580A1 (en) | 2002-11-12 | 2002-11-12 | Quick coupling for hydraulic lines |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2411580A1 (en) |
-
2002
- 2002-11-12 CA CA 2411580 patent/CA2411580A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |