US20100001519A1 - Quick coupling type fitting - Google Patents
Quick coupling type fitting Download PDFInfo
- Publication number
- US20100001519A1 US20100001519A1 US12/217,455 US21745508A US2010001519A1 US 20100001519 A1 US20100001519 A1 US 20100001519A1 US 21745508 A US21745508 A US 21745508A US 2010001519 A1 US2010001519 A1 US 2010001519A1
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- US
- United States
- Prior art keywords
- pipe
- grab ring
- ring module
- fitting
- grab
- 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.)
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Classifications
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- 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
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
- F16L37/0925—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with rings which bite into the wall of the pipe
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- 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
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
- F16L37/0927—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector the wedge element being axially displaceable for releasing the coupling
Definitions
- the present invention relates generally to the field of pipe fittings, and more particularly to a fitting for coupling two sections of pipe that are connected together in a fluid tight manner that does not require welding, adhesive, the use of special tools, or other conventional techniques of permanently securing pipes.
- Plastic pipe has long been used for conveying fluids such as liquids and gases.
- Pipe fittings are utilized to connect sections of aligned pipe together. These pipe fittings must provide a fluid tight connection without any leakage over a range of operating temperatures, pressures and a variety of other surrounding conditions.
- a reliable fitting is rarely achieved owing to the stress of the fitting caused by the continuous operation of the plastic pipe or the changing of ambient conditions such as temperature and pressure. Such conditions of operation cause the fatigue of the fittings, thereby resulting in performance degradation and leakage.
- the pipe fittings of the prior art have the potential to be easily dismantled from the pipeline, which may lead to plundering of fluid within the pipeline.
- the pipe fitting of the present invention requires some special tools to remove the pipe from the fitting thereby eliminating the possibility of any damage to the fitting or the pipe due to inadvertent dismantling while in use.
- the pipe is first inserted into the fittings and then pulled back so that the teeth of the fitting bite deeply into the wall of the pipe thereby securing the pipe to the fitting in a fluid tight manner.
- the teeth are constructed from engineering plastics that have limited strength and that are incapable of gripping a pipe that has rather hard surface such as PVC pipe or metallic pipe.
- the firmness of the grip on the pipe decreases with the rise in the temperature of the fluids conveyed through the pipe.
- the teeth are totally metallic, they have to be constructed to have a very thick formation due to the portions that form corners. This causes inconvenience in the radial compression because a lot of force is required in order to compress the grip ring to confine it to the surface of the pipe. Such an operation can cause fatigue and deformation of the plastic member exerting the compressive force.
- the instant invention discloses a quick coupling type pipe fitting system comprising a pipe fitting body further comprising an inner wall; a through hole for placement of a pipe therethrough; a pipe stopper located inside of the through hole; an o-ring chamber; a supporting flange; and an integral retaining flange having an upper internal surface that has a cylindrical shape and a lower surface that flares out into a conical shape with a flaring surface; a seal o-ring for placement inside of the o-ring chamber; a grab ring module further comprising a grab ring embedded in the grab ring module with a plurality of teeth that form a circle having a radius slightly smaller than the radius of the exterior surface of the pipe that is placed inside of the pipe fitting; a split line to facilitate compressive movement of the grab ring module; a sloping surface that corresponds to the flaring surface of the pipe fitting body; and a first shoulder and a second shoulder that prevent the grab ring module from losing position relative to the pipe fitting body when internal pressure from the pipe is
- the above embodiment can be further modified by defining that the grab ring is made of engineering plastic.
- the above embodiment can be further modified by defining that the grab ring is made of stainless steel.
- FIG. 1 is an exploded view of the pipe of the instant invention.
- FIG. 2 offers close-up, side cross-sectional views of the grab module and the pipe fitting body.
- FIG. 3 is a cross-sectional view of the pipe fitting showed in FIG. 1 showing the location of each part showed while in use.
- FIG. 4 is a longitudinal cross sectional view of the fitting as shown in FIG. 3 demonstrating the position of the interior components of the pipe fitting at the moment in which a pipe is fully inserted into the fitting.
- FIG. 5 is another longitudinal cross sectional view of the fitting as shown in FIG. 3 demonstrating the position of the interior components of the pipe fitting at the moment in which the pipe is pulled slightly backward.
- FIG. 6 is a perspective view of the dismantling device specially designed for dismantling the fittings according to the preferred embodiments of the instant invention.
- FIG. 7 is a cross sectional view of the pipe fitting when the pipe is dismantled by the dismantling device shown in FIG. 6 .
- FIG. 8 is an end view of the dismantling device shown in FIG. 6 .
- the preferred embodiment refers to an improved pipe fitting that is shown in exploded view in FIG. 1 .
- the fundamental parts of the pipe fitting are composed of the pipe fitting body 1 , a seal o-ring 2 , a supporting flange 3 , a grab ring module 4 , and a protection cap 5 .
- the pipe fitting body 1 has a through hole 6 .
- a pipe stopper 7 In the through hole 6 there is a pipe stopper 7 , an o-ring chamber 8 , and an inner wall 9 .
- the retaining flange 10 of the pipe fitting which is integrated into the fitting body 1 , has its upper internal surface that has a cylindrical shape. Its lower surface flares out into a conical shape with a flaring surface 11 having a slope corresponding to the sloping surface 12 of the grab ring module 4 .
- the protection cap 5 is overarched firmly on the retaining flange 10 to prevent the small particles found on construction sites, such as sand, stone, or cement flake, from falling into the grab ring module 4 . Those small particles can accumulate or obstruct in the cut 16 and the split line 21 causing the grab ring module 4 , at best, to work improperly or, at worst, not to work at all.
- the seal o-ring 2 resides in the o-ring chamber 8 .
- the supporting flange 3 limits the movement of the seal o-ring 2 to the pre-determined position and prevents the grab ring module 4 from pressing on the seal o-ring 2 . Therefore, no extensive force is needed to push the pipe 13 into the pipe fitting body 1 .
- the grab ring module 4 comprises a grab ring 14 made from a thin stainless steel ring that has a set of teeth 15 that point to the center of the grab ring 14 .
- the tips of the teeth 15 form a circle. This circle has a radius that is slightly smaller than the radius of the exterior surface of the pipe 13 .
- the grab ring 14 is embedded into the grab ring module 4 , which is made from an engineering plastic. There is a split line 21 which facilitates the compressive movement of the grab ring module 4 .
- the upper cylindrical part of the grab ring module 4 has several cuts 16 which divide the upper cylindrical part into several walls 17 .
- the small angular part 18 protrudes out to help the central axis of the grab ring module 4 align with the central axis of the pipe 13 and the pipe fitting body 1 . This makes the grab ring module 4 firmly affix to the outer surface of the pipe 13 , thus, allowing the pipe fitting to withstand higher internal pressure from the pipe.
- Dismantling the pipe 13 from the pipe fitting body 1 can be done by using a specially designed key 23 .
- the key 23 has a wedge shape 24 and it can be inserted to expand the split line 21 of the grab ring module 4 .
- the expansion of the split line 21 will force the teeth 15 to move outward from the surface of the pipe 13 .
- the shoulder 19 of the grab ring module 4 prevents the grab ring module 4 from losing position from the pipe fitting body 1 when the internal pressure from the pipe is very high.
- FIGS. 1-7 The working principle of the pipe fitting body 1 is exhibited in FIGS. 1-7 .
- the pipe 13 After pushing the pipe 13 through the pipe fitting 1 until the end of the pipe 22 abuts the pipe stopper 7 , the pipe 13 is pulled backward.
- the pulling backward of the pipe causes the grab ring module 4 to move with the pipe 13 .
- the movement of the grab ring module 4 causes the sloping surface 12 of the grab ring module 4 to move to contact with the flaring surface 11 of the retaining flange 10 .
- the contact area between the sloping surface 12 and the flaring surface 11 will increase according to the movement of the pipe 13 .
- This movement compresses the grab ring module 4 onto the outer surface of the pipe 13 and makes the teeth bite deeply into the surface of the pipe 13 , thus preventing the pipe 13 from becoming loosened from the pipe fitting 1 .
- the retaining flange 10 is provided with a shoulder 20 that abuts against the shoulder 19 of the grab ring module 4 to stop the movement of the grab ring module 4 .
- the shoulders 19 , 20 will not contact each other.
- the working pattern of each part of the pipe fitting body 1 makes the pipe fitting 1 able to couple two sections of pipe efficiently.
- the pipe fitting of the instant invention not only can couple two sections of pipe quickly with high efficiency, but can also easily remove the pipe fitting 1 from the pipe 13 by using a specially designed key 23 .
- the wedge 24 of the key 23 By inserting the wedge 24 of the key 23 into the split line 21 of the grab ring module 4 , the wedge 24 will push apart the split line 21 .
- This action causes the grab ring module 4 to expand radially outward.
- the expansion of the grab ring module 4 extracts the teeth 15 from the surface of the pipe 13 .
- the pipe 13 can be easily pulled out from the pipe fitting 1 .
- the pipe fittings according to any preferred embodiments of the present invention has a special character, i.e., a specially designed tool that is required to disconnect the pipe fitting from the pipe.
- Conventional pipe fittings used in coupling two pipe sections not only can be installed easily, but also can be dismantled easily by hand or any conventional tools. This may lead to plundering of the fluid within the pipeline.
- the pipe fittings of the present invention are designed to require a specific tool designed for the dismantling of the pipe 13 .
- the specific tool used for the dismantling of the pipe is hereby named “release key” 23 .
- each of the various elements of the invention and claims may also be achieved in a variety of manners.
- This disclosure should be understood to encompass each such variation, be it a variation of any apparatus embodiment, a method embodiment, or even merely a variation of any element of these.
- the words for each element may be expressed by equivalent apparatus terms even if only the function or result is the same.
- Such equivalent, broader, or even more generic terms should be considered to be encompassed in the description of each element or action.
- Such terms can be substituted where desired to make explicit the implicitly broad coverage to which this invention is entitled.
- all actions may be expressed as a means for taking that action or as an element which causes that action.
- each physical element disclosed should be understood to encompass a disclosure of the action which that physical element facilitates. Such changes and alternative terms are to be understood to be explicitly included in the description.
Abstract
A quick coupling type fitting is disclosed that connects two ends of two different pipes together in a fluid tight manner. It is designed for convenience in installation, high strength, compact size, easy manufacture with a low production cost, high efficiency and does not require the use of special tools for installation. The coupling utilizes a grab ring module that has a grab ring made with embedded stainless steel, thereby strengthening the fixing force and allowing for quick installation. A flaring surface on a retaining flange has an angle that corresponds to a tapering surface of the grab ring module. When the flaring surface and the tapering surface contact each other, the grab ring module compresses the surface of the pipe. Because the grab ring module has an outer plastic body with a small inner part, the grab ring module can be compressed to the pipe without causing fatigue of any members inside of the fitting. A specialized tool allows for quick and easy dismantling of the fitting.
Description
- 1. Field of the Invention
- The present invention relates generally to the field of pipe fittings, and more particularly to a fitting for coupling two sections of pipe that are connected together in a fluid tight manner that does not require welding, adhesive, the use of special tools, or other conventional techniques of permanently securing pipes.
- 2. Background and Description of the Prior Art
- Plastic pipe has long been used for conveying fluids such as liquids and gases. Pipe fittings are utilized to connect sections of aligned pipe together. These pipe fittings must provide a fluid tight connection without any leakage over a range of operating temperatures, pressures and a variety of other surrounding conditions. For plastic pipe, however, a reliable fitting is rarely achieved owing to the stress of the fitting caused by the continuous operation of the plastic pipe or the changing of ambient conditions such as temperature and pressure. Such conditions of operation cause the fatigue of the fittings, thereby resulting in performance degradation and leakage.
- Many types of pipe fittings are currently commercially available. One type is a compression fitting system. This type of fitting is rather large when compared to the pipe, and requires tools for installation. Due to the bulky size of this type of fitting, its use requires an extensive working space to provide for the installation of such fittings. When use is required in a limited space, e.g., in concrete walls, this type of fitting is very inconvenient.
- Moreover, the pipe fittings of the prior art have the potential to be easily dismantled from the pipeline, which may lead to plundering of fluid within the pipeline. The pipe fitting of the present invention, however, requires some special tools to remove the pipe from the fitting thereby eliminating the possibility of any damage to the fitting or the pipe due to inadvertent dismantling while in use.
- In the manufacture of the plastic pipe fitting of the prior art as discussed herein, the pipe is first inserted into the fittings and then pulled back so that the teeth of the fitting bite deeply into the wall of the pipe thereby securing the pipe to the fitting in a fluid tight manner. In general, the teeth are constructed from engineering plastics that have limited strength and that are incapable of gripping a pipe that has rather hard surface such as PVC pipe or metallic pipe. Moreover, the firmness of the grip on the pipe decreases with the rise in the temperature of the fluids conveyed through the pipe. If the teeth are totally metallic, they have to be constructed to have a very thick formation due to the portions that form corners. This causes inconvenience in the radial compression because a lot of force is required in order to compress the grip ring to confine it to the surface of the pipe. Such an operation can cause fatigue and deformation of the plastic member exerting the compressive force.
- It is the primary objection of the present invention therefore to provide a plastic pipe fitting that can be used for joining two sections of pipe that are aligned in the same straight line or in the vertical direction in a fluid tight manner over a range of operating pressures and temperatures.
- It is yet another objective of the present invention to provide a pipe fitting that can be easily installed without requiring any tools or specially-skilled workers.
- It is yet another objective of the present invention to provide a pipe fitting that is compact in size and easy to install in narrow or restricted areas such as embedding in walls or in limited spaces, thus facilitating the installation of the pipe system.
- It is yet another objective of the present invention to provide a pipe fitting that can be manufactured on an industrial scale with a production cost lower than most of the prior art, thereby allowing the fittings to be sold to the ultimate consumer at a relatively inexpensive price.
- The instant invention discloses a quick coupling type pipe fitting system comprising a pipe fitting body further comprising an inner wall; a through hole for placement of a pipe therethrough; a pipe stopper located inside of the through hole; an o-ring chamber; a supporting flange; and an integral retaining flange having an upper internal surface that has a cylindrical shape and a lower surface that flares out into a conical shape with a flaring surface; a seal o-ring for placement inside of the o-ring chamber; a grab ring module further comprising a grab ring embedded in the grab ring module with a plurality of teeth that form a circle having a radius slightly smaller than the radius of the exterior surface of the pipe that is placed inside of the pipe fitting; a split line to facilitate compressive movement of the grab ring module; a sloping surface that corresponds to the flaring surface of the pipe fitting body; and a first shoulder and a second shoulder that prevent the grab ring module from losing position relative to the pipe fitting body when internal pressure from the pipe is very high; a protection cap that attaches to the retaining flange; and a dismantling key having a wedge shape that is inserted into the split line in order to expand the split line forcing the teeth outward from the surface of the pipe.
- The above embodiment can be further modified by defining that the grab ring is made of engineering plastic.
- The above embodiment can be further modified by defining that the grab ring is made of stainless steel.
- For a better understanding of the present invention, reference is to be made to the accompanying drawings. It is to be understood that the present invention is not limited to the precise arrangement shown in the drawings.
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FIG. 1 is an exploded view of the pipe of the instant invention. -
FIG. 2 offers close-up, side cross-sectional views of the grab module and the pipe fitting body. -
FIG. 3 is a cross-sectional view of the pipe fitting showed inFIG. 1 showing the location of each part showed while in use. -
FIG. 4 is a longitudinal cross sectional view of the fitting as shown inFIG. 3 demonstrating the position of the interior components of the pipe fitting at the moment in which a pipe is fully inserted into the fitting. -
FIG. 5 is another longitudinal cross sectional view of the fitting as shown inFIG. 3 demonstrating the position of the interior components of the pipe fitting at the moment in which the pipe is pulled slightly backward. -
FIG. 6 is a perspective view of the dismantling device specially designed for dismantling the fittings according to the preferred embodiments of the instant invention. -
FIG. 7 is a cross sectional view of the pipe fitting when the pipe is dismantled by the dismantling device shown inFIG. 6 . -
FIG. 8 is an end view of the dismantling device shown inFIG. 6 . - Turning to the drawings, the preferred embodiment is illustrated and described by reference characters that denote similar elements throughout the several views of the instant invention.
- The preferred embodiment refers to an improved pipe fitting that is shown in exploded view in
FIG. 1 . The fundamental parts of the pipe fitting are composed of thepipe fitting body 1, a seal o-ring 2, a supportingflange 3, agrab ring module 4, and aprotection cap 5. - The pipe fitting
body 1 has a throughhole 6. In thethrough hole 6 there is apipe stopper 7, an o-ring chamber 8, and aninner wall 9. - The
retaining flange 10 of the pipe fitting, which is integrated into thefitting body 1, has its upper internal surface that has a cylindrical shape. Its lower surface flares out into a conical shape with aflaring surface 11 having a slope corresponding to thesloping surface 12 of thegrab ring module 4. - The
protection cap 5 is overarched firmly on theretaining flange 10 to prevent the small particles found on construction sites, such as sand, stone, or cement flake, from falling into thegrab ring module 4. Those small particles can accumulate or obstruct in thecut 16 and thesplit line 21 causing thegrab ring module 4, at best, to work improperly or, at worst, not to work at all. - The seal o-
ring 2 resides in the o-ring chamber 8. The supportingflange 3 limits the movement of the seal o-ring 2 to the pre-determined position and prevents thegrab ring module 4 from pressing on the seal o-ring 2. Therefore, no extensive force is needed to push thepipe 13 into thepipe fitting body 1. - The
grab ring module 4 comprises agrab ring 14 made from a thin stainless steel ring that has a set ofteeth 15 that point to the center of thegrab ring 14. The tips of theteeth 15 form a circle. This circle has a radius that is slightly smaller than the radius of the exterior surface of thepipe 13. Thegrab ring 14 is embedded into thegrab ring module 4, which is made from an engineering plastic. There is asplit line 21 which facilitates the compressive movement of thegrab ring module 4. The upper cylindrical part of thegrab ring module 4 hasseveral cuts 16 which divide the upper cylindrical part intoseveral walls 17. At the top of someselected walls 17, the smallangular part 18 protrudes out to help the central axis of thegrab ring module 4 align with the central axis of thepipe 13 and thepipe fitting body 1. This makes thegrab ring module 4 firmly affix to the outer surface of thepipe 13, thus, allowing the pipe fitting to withstand higher internal pressure from the pipe. - Dismantling the
pipe 13 from thepipe fitting body 1 can be done by using a specially designedkey 23. The key 23 has awedge shape 24 and it can be inserted to expand thesplit line 21 of thegrab ring module 4. The expansion of thesplit line 21 will force theteeth 15 to move outward from the surface of thepipe 13. Theshoulder 19 of thegrab ring module 4 prevents thegrab ring module 4 from losing position from the pipefitting body 1 when the internal pressure from the pipe is very high. - The working principle of the pipe
fitting body 1 is exhibited inFIGS. 1-7 . - When an
end 22 of thepipe 13 is inserted into the pipefitting body 1 by passing through the retainingflange 10, thegrab ring module 4, the supportingflange 3, and the seal o-ring 2, the seal o-ring 2 will be compressed between the outer surface of thepipe 13 and theinner wall 9 to prevent any leakage of the liquid between both surfaces. While theend 22 of thepipe 13 is pushed through thegrab ring module 4, thegrab ring module 4 will contact the surface of the pipe at all times via the contact of theteeth 15. The contact of theteeth 15 with thepipe 13 causes thegrab ring module 4 slightly expands in the radial direction and moves along thepipe 13 until reaching the supportingflange 3. - After pushing the
pipe 13 through the pipe fitting 1 until the end of thepipe 22 abuts thepipe stopper 7, thepipe 13 is pulled backward. The pulling backward of the pipe causes thegrab ring module 4 to move with thepipe 13. The movement of thegrab ring module 4 causes the slopingsurface 12 of thegrab ring module 4 to move to contact with the flaringsurface 11 of the retainingflange 10. The contact area between the slopingsurface 12 and the flaringsurface 11 will increase according to the movement of thepipe 13. This movement compresses thegrab ring module 4 onto the outer surface of thepipe 13 and makes the teeth bite deeply into the surface of thepipe 13, thus preventing thepipe 13 from becoming loosened from thepipe fitting 1. - In order to prevent the
grab ring module 4 from slipping from the pipe fitting 1 when the internal pressure from thepipe 13 is very high, the retainingflange 10 is provided with ashoulder 20 that abuts against theshoulder 19 of thegrab ring module 4 to stop the movement of thegrab ring module 4. When the pressure from the pipe is normal, theshoulders fitting body 1 makes the pipe fitting 1 able to couple two sections of pipe efficiently. - The pipe fitting of the instant invention not only can couple two sections of pipe quickly with high efficiency, but can also easily remove the pipe fitting 1 from the
pipe 13 by using a specially designed key 23. By inserting thewedge 24 of the key 23 into thesplit line 21 of thegrab ring module 4, thewedge 24 will push apart thesplit line 21. This action causes thegrab ring module 4 to expand radially outward. The expansion of thegrab ring module 4 extracts theteeth 15 from the surface of thepipe 13. Hence, thepipe 13 can be easily pulled out from thepipe fitting 1. - The pipe fittings according to any preferred embodiments of the present invention has a special character, i.e., a specially designed tool that is required to disconnect the pipe fitting from the pipe. Conventional pipe fittings used in coupling two pipe sections not only can be installed easily, but also can be dismantled easily by hand or any conventional tools. This may lead to plundering of the fluid within the pipeline. The pipe fittings of the present invention are designed to require a specific tool designed for the dismantling of the
pipe 13. The specific tool used for the dismantling of the pipe is hereby named “release key” 23. - The discussion included in this patent is intended to serve as a basic description. The reader should be aware that the specific discussion may not explicitly describe all embodiments possible and alternatives are implicit. Also, this discussion may not fully explain the generic nature of the invention and may not explicitly show how each feature or element can actually be representative or equivalent elements. Again, these are implicitly included in this disclosure. Where the invention is described in device-oriented terminology, each element of the device implicitly performs a function. It should also be understood that a variety of changes may be made without departing from the essence of the invention. Such changes are also implicitly included in the description. These changes still fall within the scope of this invention.
- Further, each of the various elements of the invention and claims may also be achieved in a variety of manners. This disclosure should be understood to encompass each such variation, be it a variation of any apparatus embodiment, a method embodiment, or even merely a variation of any element of these. Particularly, it should be understood that as the disclosure relates to elements of the invention, the words for each element may be expressed by equivalent apparatus terms even if only the function or result is the same. Such equivalent, broader, or even more generic terms should be considered to be encompassed in the description of each element or action. Such terms can be substituted where desired to make explicit the implicitly broad coverage to which this invention is entitled. It should be understood that all actions may be expressed as a means for taking that action or as an element which causes that action. Similarly, each physical element disclosed should be understood to encompass a disclosure of the action which that physical element facilitates. Such changes and alternative terms are to be understood to be explicitly included in the description.
Claims (4)
1. A pipe fitting system comprising:
a pipe;
a pipe fitting body further comprising
an inner wall;
a through hole for placement of a pipe therethrough;
a pipe stopper located inside of said through hole;
an o-ring chamber;
a supporting flange; and
an integral retaining flange having an upper internal surface that has a cylindrical shape and a lower surface that flares out into a conical shape with a flaring surface;
a seal o-ring for placement inside of said o-ring chamber;
a grab ring module having a certain length, further comprising
a grab ring embedded in said grab ring module with a plurality of teeth that form a circle having a radius slightly smaller than the radius of the exterior surface of said pipe that is placed inside of said pipe fitting;
a split line that goes all the way through the length of said grab ring module to facilitate compressive movement of said grab ring module;
a sloping surface that corresponds to said flaring surface of said pipe fitting body; and
a first shoulder and a second shoulder that prevent said grab ring module from losing position relative to said pipe fitting body when internal pressure from said pipe is very high;
a protection cap that attaches to said retaining flange; and
a dismantling key having a wedge shape that is inserted into said split line in order to expand said split line forcing said teeth outward from the surface of said pipe.
2. The fitting system as defined in claim 1 wherein said grab ring is made of engineering plastic.
3. The fitting system as defined in claim 1 wherein said grab ring is made of stainless steel.
4. The fitting system as defined in claim 1 wherein said grab ring module includes an upper cylindrical part that further comprises a plurality of cuts that divide said upper cylindrical part into a plurality of subparts wherein at the top of some of said plurality of subparts, a small angular member protrudes therefrom.
Priority Applications (1)
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US12/217,455 US7644955B1 (en) | 2008-07-03 | 2008-07-03 | Quick coupling type fitting |
Applications Claiming Priority (1)
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US12/217,455 US7644955B1 (en) | 2008-07-03 | 2008-07-03 | Quick coupling type fitting |
Publications (2)
Publication Number | Publication Date |
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US20100001519A1 true US20100001519A1 (en) | 2010-01-07 |
US7644955B1 US7644955B1 (en) | 2010-01-12 |
Family
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US12/217,455 Expired - Fee Related US7644955B1 (en) | 2008-07-03 | 2008-07-03 | Quick coupling type fitting |
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GB2521825A (en) * | 2013-12-03 | 2015-07-08 | Dudley Thomas Ltd | Fitting |
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US20220178475A1 (en) * | 2020-12-03 | 2022-06-09 | Mueller International, Llc | Pipe fitting with grip ring |
US11578826B1 (en) * | 2019-10-18 | 2023-02-14 | Edward Avetisian | Pipe connector |
WO2023043568A1 (en) * | 2021-09-15 | 2023-03-23 | Mueller International, Llc | Pipe fitting with grip ring |
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US8480134B2 (en) | 2007-05-25 | 2013-07-09 | Quick Fitting, Inc. | Piping joint assembly system and method with sealing ring stabilizer |
US8205915B1 (en) * | 2007-05-25 | 2012-06-26 | Quick Fitting, Inc. | Piping joint assembly system and method |
GB2471502B (en) * | 2009-07-02 | 2011-09-07 | Plasson Ltd | Pipe coupling |
AU2010206066A1 (en) * | 2009-08-03 | 2011-02-17 | Gsa Industries (Aust.) Pty. Ltd. | Pipe coupling |
CN102330723A (en) * | 2010-07-13 | 2012-01-25 | 新秩序投资119股份有限公司 | Pipe fitting |
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Cited By (11)
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US20180008743A1 (en) * | 2011-06-22 | 2018-01-11 | Biopharm Gesellschaft Zur Biotechnologischen Entwi Cklung Von Pharmaka Mbh | Bioresorbable wound dressing |
GB2521825A (en) * | 2013-12-03 | 2015-07-08 | Dudley Thomas Ltd | Fitting |
GB2521825B (en) * | 2013-12-03 | 2020-05-20 | Dudley Thomas Ltd | Push fit pipe connector |
CN105114699A (en) * | 2015-09-25 | 2015-12-02 | 江苏爱索新材料科技有限公司 | Jacking-swelling type connector |
NL2016757A (en) * | 2016-05-11 | 2017-11-15 | Beugen J Van Beheer Bv | Apparatus and method for restricting a movement of a pipe. |
WO2017194691A1 (en) * | 2016-05-11 | 2017-11-16 | J Van Beugen Beheer B.V. | Apparatus and method for restricting a movement of a pipe |
US11578826B1 (en) * | 2019-10-18 | 2023-02-14 | Edward Avetisian | Pipe connector |
US20220178475A1 (en) * | 2020-12-03 | 2022-06-09 | Mueller International, Llc | Pipe fitting with grip ring |
US11754208B2 (en) * | 2020-12-03 | 2023-09-12 | Mueller International, Llc | Pipe fitting with grip ring |
US11774022B2 (en) | 2020-12-03 | 2023-10-03 | Mueller International, Llc | Pipe fitting with grip ring |
WO2023043568A1 (en) * | 2021-09-15 | 2023-03-23 | Mueller International, Llc | Pipe fitting with grip ring |
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