DESC:FORM 2
THE PATENTS ACT 1970
(39 of 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)
1. TITLE OF THE INVENTION: “A CIRCLIP LOCK WITH REVERSE THREADED CHECK NUT RING MECHANISM”
2. APPLICANT:

(a) NAME : FLOWKEM POLY PLAST PRIVATE LIMITED
(b) NATIONALITY : Indian
(c) ADDRESS : SURVEY NO/BLOCK NO 417,418,419, NEAR AMBA HOTEL NEW MIRJAPUR CUT, NEAR MIRJAPUR ,AHMEDABAD INDORE HIGHWAY, VILLAGE CHAMLA,TALUKO DEHGAM DISTRICT GANDHINAGAR, GUJARAT, 387610
PROVISIONAL

The following specification describes the invention. ? COMPLETE

The following specification particularly describes the invention and the manner in which it is to be performed.

Field of Invention
The present disclosure relates to a circlip lock with reverse threaded check nut ring mechanism. Specially it relates to a locking system used in the pipe joint couplings with PVC pipes used for submersible pump applications in bore wells to connect and support the submersible pumps and also draw water from underground for drinking and irrigation purposes.
Background of Invention
A bore-well system includes a submersible pump submerged in ground water that is to be pumped to the ground level and a fluid flow conduit for delivering the ground water pumped by the submersible pump outside the bore-well. Each of the column pipes, connected with each other for configuring the fluid flow conduit is generally having a length of about 3m. The submersible pump submersed in the ground water is connected to an operative bottom of the fluid flow conduit configured by connecting the column pipes is encased within a casing structure formed by joining a plurality of casing pipes.
The linking of two pipes should be leakage-free and strong enough to ensure the long life of the piping system. To connect two pipe sections pipe and coupler system is used, in that, the pipes are threaded externally at both of the ends to be able to connect with the coupler having threaded inner side that facilitates engagement of another pipe segment of the same cross-section from either side. Earlier metallic pipes of different sizes were used for the above-mentioned purposes to draw water but nowadays thermoplastic pipes such as PVC and polyethylene are getting more popular particularly for the bore well use due to the inert nature of the PVC it does not react with the dry or moist soil thus providing extensive durability to the bore well.
The drawback of metallic pipes are that it were less durable when they come into contact with the dry or moist soil they get rusted and deteriorate as a result of chemical, electro-chemical, and electro-kinetic reactions that always takes place. All these reactions increase during the intermittent dry season and rainy seasons.
Although there may not be any corrosion over the periods metal becomes week and pipe get punctured by minor and tiny holes creeping in the casing at the top resulting in a reduction of system pressure and water losses.
Hence one such alternative is making the pipes & coupling them with PVC material. Pipes are fitted in a coupling having grooves for rubber rings for providing leak- proof fit. The pipes & coupling are fixed together after fitting with a plugging arrangement. Reverse threaded check nut is fitted to prevent the rotation of the pipe inside the coupling joint.
Furthermore, metallic pipes are heavy and difficult for handling thus extremely labor-intensive and more time consuming which ultimately makes it troublesome and expensive, also during the time of repair and maintenance it is difficult to disassemble a single pipe as the plugging material gets distorted due to heavy load and due deposition of rust over the threaded portion of pipe and coupler. Over and above the inner surface of the metallic pipe is rough leading to more friction loss and more energy consumption. Various alternatives have been emerged to develop lightweight, high strength, and long life pipes. As one of the alternatives PVC pipes with different types of locking systems is being successful to meet the above- mentioned drawbacks and disadvantages of metallic pipes.
Various prior applications disclose the PVC piping system with the PVC coupling and locking assembly. The prior art document 3337/MUM/2011 discloses a piping system of PVC pipe and PVC coupler wherein PVC pipe fixed with the coupler at one end by means of gluing agent and removable reverse threaded check nut ring mechanism in order to provide duel safety to the assembly that fixed at manufacturer premises whereas the removable free end of the pipe comprises EPDM "O" ring and square threads so as to get engage with the free side of the another coupler that can be assembled at the site of the installation. In the said assembly the threads at free end of the pipe are protected by covering with the protection end cap prior to installation.
Therefore, the said assembly fitment fixed with reverse threaded check nut and EPDM "O" ring is proposed to provide enhanced durability and leakage protection to the whole assembly and can be removed easily without causing damage whenever required.
Another prior art document US6921114B1 discloses a coupling assembly including a coupler body having a generally cylindrical shape and an opening at one end. The coupler body has an inner wall with an inner circumference and an outer wall. An abutment extends from the inner wall of the coupler body. The coupling assembly further includes a conduit having a generally cylindrical shape complementary to the coupler body. A coupler key groove extends along the inner circumference of an inner wall of the coupler body and is shaped like part of a parallelogram.
One another prior art document 300/MUM/2014 discloses a coupling for connecting tubular elements configuring a fluid flow conduit for transporting pressurized fluid includes a coupling element and at least a pair of pre-formed insert elements. The opposite ends of the coupling element receive and threadable engage with a first tubular element and a second tubular element respectively for configuring connection there-between. The coupling element is having holes configured thereon and the tubular elements are having complimentary recesses configured thereon, wherein at least one hole configured on the coupling element register with at least one complimentary recess configured on a corresponding Tubular element for configuring a passage way extending through the coupling element and at least partially extending through the corresponding tubular element.
Main drawbacks of this type of the piping systems are that it may cause failure of the pipe and coupler assembly due to various loads such as axial load of the pump and motor, turbulent loads created by water, and vibrational loads created in the bore well. Since all the alternatives have some type of problem and disadvantages, a better product for use with submersible pumps is most necessary. The inventor of the present invention has developed a pipe system that made in PVC with added extra features for more reliability, high strength, and more advantage.
Object of the Invention
The principle object of the present invention is to overcome all the mentioned and existed drawbacks of the prior arts by providing a circlip lock with reverse threaded check nut ring mechanism.
Another object of the present invention is to provide a circlip lock with reverse threaded check nut ring mechanism which provides a permanent locking mechanism and prevent from the situation of failure of bore well.
Another object of the present invention is to provide a circlip lock with reverse threaded check nut ring mechanism in which couplings at one end are locked with a circlip lock for providing permanent locking to the pipe.
Another object of the present invention is to provide reverse threaded check nut ring which helps the circlip lock to be in locking situation.
Another object of the present invention is to provide a circlip lock which lock the pipes such a way that it resists the impact of surge pressure generated during the on-off operation of the pump and keep the piping assembly in the locking position.
Another object of the present invention is to provide a circlip lock with reverse threaded check nut ring mechanism with inner profile ring and outer profile ring to ensure leak proof at high temperature.
Another object of the present invention is to provide a circlip lock with reverse threaded check nut ring mechanism with the square thread having very high tensile load holding capacity.
Another object of the present invention is that the circlip lock of the present invention eliminates requirement of the drilled hole in the coupler and provide better strength and load holding capacity to the coupler.
Summary of Invention
This summary is provided to introduce a selection of concepts in a simplified form that are further disclosed in the detailed description of the invention. This summary is not intended to identify key or essential inventive concepts of the claimed subject matter, nor is it intended for determining the scope of the claimed subject matter. The present invention is all about a circlip lock with reverse threaded check nut ring mechanism. The main aspect of the present invention is to provide a circlip lock with reverse threaded check nut ring mechanism having a coupler made of polyvinyl chloride comprising: a first coupling end and a second coupling end, wherein the first coupling end and the second coupling end are configured with threads on inner surfaces thereof; a groove for accommodating a circlip lock, wherein the groove is provided on the outer surface of the first pipe; an inner profile ring (EPDM) groove provided- proximate to a middle portion of the coupler towards the first coupling end for inner profile ring (EPDM); and reverse threaded check nut ring located at the first coupling end of the coupler, wherein the reverse threaded check nut ring and the groove for accommodating the circlip lock are located adjacent to each other at the first coupling end of the coupler; characterized in that a first pipe and a second pipe, each made of polyvinyl chloride and comprising square threads on an outer surface and a groove located at an end of the threads and on the outer surface of each of the pipes, wherein the first pipe is connected to the first coupling end of the coupler and the second pipe is connected to the second coupling end of the coupler; an inner profile ring provided at the inner profile ring groove of the coupler; and a circlip lock, wherein the circlip lock is located at a circumferential passage formed by matching the flat portion made on the coupler with the groove made on the outer surface of the first pipe after complete threading of the first pipe with the coupler for accommodating the circlip lock to lock the coupler and the first pipe to form a permanent joint.
Another aspect of the present invention is to provide a profile ring (EPDM) is provided in the groove of the coupler made of rubber material (EPDM) and provides leakage free assembly for the prolonged use of the piping system with better efficiency. Another aspect of the present invention is to provide a circlip lock ensures the durability of the lock, provide better tensile and impact strength and prevent the situation of opening of the piping system due to the surge pressure generated when pump start or stop.
Yet another aspect of the present invention is to provide the arrangement of reverse threaded check nut ring and circlip lock ensure the permanent locking system for the piping assembly.
Yet another aspect of the present invention is that the piping assembly of the present invention eliminates the essentiality of hole made in coupler in the prior technologies. This feature increases the stability of coupler and provides more strength to coupler.
Brief Description of Drawings
Other Objects, advantages and novel features of the invention will become apparent from the following brief description of the present embodiment when taken in conjunction with the accompanying drawings.
The foregoing summary, as well as the following detailed description of the invention, is better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, exemplary constructions of the invention are shown in the drawings.
FIG. 1 represents the piping assembly with the circlip lock and reverse threaded ring.
FIG. 2 represents the exploded view of the piping assembly.
FIG. 3 represents cross section view of the circlip lock.
FIG. 4 represents the first and second pipe with the grooves.
FIG. 5 represents the arrangement of inner profile ring.
FIG. 6 represents the arrangement of outer profile ring.
FIG. 7 represents the locking mechanism with the arrangement of the circlip lock and the reverse treaded check nut ring.
FIG. 8 represents the cross section of the coupler.
FIG. 9 represents the different shape of the circlip lock.
FIG. 10 represents the cross section of the reverse threaded check nut ring.
It should be noted that the figures are not drawn to scale and that elements of similar structures or functions are generally represented by reference numerals for illustrative purpose throughout the figures. It should also be noted that the figures are only intended to facilitate the description of the preferred embodiments. The figures do not illustrate every aspect of the described embodiments and do not limit the scope of the present disclosure.
Brief Description of Invention
The nature of the invention and the manner in which it works is clearly described in the provisional specification. The invention has various embodiments and they are clearly described in the following pages of the provisional specification. Before explaining the present invention, it is to be understood that the invention is not limited in its application.
Detailed embodiments of the present invention are disclosed herein, however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific functional and structural details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention belongs.
The present invention overcomes the aforesaid drawbacks of conventional locking mechanism in piping assembly. The objects, features, and advantages of the present inventions will now be described in greater detail. Also, the following description includes various specific details and is to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that: without departing from the scope and spirit of the present disclosure and its various embodiments there may be any number of changes and modifications described herein.
It must also be noted that as used herein and in the appended claims, the singular forms "a", "an," and "the" include plural references unless the context clearly dictates otherwise. Although any systems and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present invention, the preferred, systems are now described.
The assembly of the present disclosure is having pipes, coupler and also employed with a locking means such as circlip lock (101b), such that first pipe (101) is non-removable coupled to the coupler (103), and second pipe (102) can be coupled to an adjacent coupler (103) for forming a joint, thereby prevent dismantling of the assembly. In the present disclosure, the groove for accommodating a sealing in the coupler (103) is extended and thereby the stress acting in the groove region may be relived. Further, the extended groove may be fitted with an inner and outer profile ring (101c, 102a), which seals the complete portion of the groove, and provide easy compression. The inner and outer profile ring (101c, 102a) may provide multiple sealing effects between the pipe and coupler.
Thereby ensuing, fluid seal of the pipe and coupler unit, and maintain structural rigidity the main embodiment of the present invention is to provide a circlip lock (101b) with reverse threaded check nut ring (101a) mechanism. Particularly it relates to a locking system used in the pipe joint couplings with PVC pipes (101, 102) used for submersible pump applications in bore wells to connect and support the submersible pumps and also draw water from underground for drinking and irrigation purposes.
As per detail embodiments of the present invention, a circlip lock with reverse threaded check nut ring mechanism having:
a first pipe (101) and second pipe (102);
a coupler (103) made of polyvinyl chloride comprising:
a first coupling end (103a) and a second coupling end (103b), wherein the first coupling end (103a) and the second coupling end (103b) are configured with square threads on inner surfaces thereof;
a circlip lock (101b) and a groove (101e) for accommodating said circlip lock (101b), wherein the groove (101e) is provided on the outer surface of the first pipe (101);
an inner profile ring (101c) and an inner profile ring groove (103d) provided proximate to a middle portion of the coupler (103) towards the first coupling end (103a) for said inner profile ring (101c);
an outer profile ring (102a) located at the outer surface of the second pipe (102); and a reverse threaded check nut ring (101a) located at the first coupling end (103a) of the coupler (103), wherein reverse threaded check nut ring (101a) and the groove (101e) for accommodating the circlip lock (101b) are located adjacent to each other at the first coupling end (103a) of the coupler (103);
Characterized in that;
said first pipe (101) and said second pipe (102), each made of polyvinyl chloride and comprising square threads on an outer surface and a grooves located at an end of the threads and on the outer surface of each of the pipes, wherein the first pipe (101) is connected to the first coupling end (103a) of the coupler (103) and the second pipe (102) is connected to the second coupling end (103b) of the coupler (103);
an inner profile ring (101c) located between the inner profile ring groove (103d) and first pipe (101); and
said circlip lock (101b) is located at a circumferential passage formed by matching the flat portion (103e) made on the coupler (103) with the groove (101e) made on the outer surface of the first pipe (101) after complete threading of the first pipe (101) with the coupler for accommodating the circlip lock (101b) to lock the coupler (103) and the first pipe (101) to form a permanent joint.
As per detailed embodiment of the present invention, said coupler (103) is a common joining embodiment to which one end is fixed to a permanent end (103a) of first pipe (101) and the other end is fixed to the temporary end (103b) of the second pipe (102). The coupler (103) is made of polyvinyl chloride material by which it gives the advantage of lighter weight, good strength and non-corrosive properties. The coupler (103) both ends (103a, 103b) are threaded with square threads to suit the both ends of the pipes (101, 102). These unique square threads made on CNC machines provide sufficient grip and additional strength against tensile loads. Thus the joints become fairly strong with sufficient safety factor to take care of load of entire assembly along with the weight of the pump. These specially designed threads also make them suitable for easy joining and re-joining several times.
As per detailed embodiment of the present invention, said circlip lock (101b) made from at least one of metal, rubber and plastic having a shape selected from a group comprising round, oval, square and sides flattened. The circlip lock (101b) provided for the permanent locking the permanent end (103a) with the first pipe (101). The circlip lock (101b) located at the permanent end (103a) of the coupler (103). The groove (101e) on the outer surface of the first pipe (101) and the flat portion (103e) of the coupler (103) formed the circumferential passage for the seat of the circlip (101b). Said circlip lock (101b) is located at a circumferential passage formed by matching the flat portion (103e) made on the coupler (103) with the groove (101e) made on the outer surface of the first pipe (101) after complete threading of the first pipe (101) with the coupler for accommodating the circlip lock (101b) to lock the coupler (103) and the first pipe (101) to form a permanent joint. The circlip lock (101b) provides strength to the locking mechanism of the pipe assembly (100) against the impact of the surge pressure effect of the pump when it gets on or off. The circlip lock (101b) of the present invention eliminates the need of the drilled hole in the coupler and so it increases the stability and strength of the coupler (103).
As per detailed embodiment of the present invention, said inner profile ring (101c) is located between said groove (103d) of the coupler (103) and the first pipe (101) made of rubber material and provides leakage free assembly for the prolonged use of the piping system with better efficiency. The inner profile ring (101c) also help to absorb the vibration generated through the surge pressure effect of the pump.
As per the detailed embodiment of the present invention, said reverse threaded check nut ring (101a) provided on the permanent end (103a) of the coupler (103). The reverse threaded check nut ring (101a) having the reverse thread and it matches with the reverse thread of the coupler (103). At the start of the pump in the bore well, the pump generate the clockwise surge pressure effect and while the pump gets off, it generate the anti-clockwise surge pressure effect. Due to the anti-clockwise surge pressure effect the lock may get open and the bore can get fail. To prevent from such stroke, the reverse threaded check nut ring (101a) provided. It resists the anti-clockwise stroke and helps to protect the piping assembly. The reverse threaded check nut ring (101a) is made from rubber, metal, PVC material or any polymeric materials.
As per detailed embodiment of the present invention, the temporary end (103b) of the second pipe (102) is fixed an outer profile ring (102a) which will act as the sealing ring to the temporary end (103b). Specially designed rubber sealing rings provided on the threads make the joints watertight and help absorb pump vibrations. The temporary end (103b) is matched to such an extent that threading is fixed properly and tightly holding the coupler (103) by a proper joint. This stage starts at the sight of the bore well where assembling/dismantling of the whole piping system takes place. Thus the whole piping system is joined using this mechanism for getting the water from the bore wells.
As per one embodiment, by joining both the pipes (101, 102) with a coupler (103) having threads will have higher weight holding capacity and handle more tensile strength. The threading here is square shaped so that the threads do not slip or damage after several operations.
As detailed embodiment of the present invention, combination of the reverse threaded check nut ring (101a) and the circlip lock (101b) provided the permanent locking position. It means, once the piping assembly locked with the circlip lock (101b) it cannot be open automatically. If the clockwise stroke generated the circlip lock (101b) can resist that and holding the position. If the anti-clockwise stroke generated, the reverse threaded check nut ring (101a) become tighter rather than open. Due to this arrangement the permanent end (103a) and first pipe (101) joined without any gluing solution and though giving batter durability.
As per detail embodiment of the present invention, the coupler (103) having permanent end (103a) and temporary end (103b). The permanent end (103a) of the coupler (103) joined with the first pipe (101) with the matching of the square thread. The first pipe (101) having the inner profile ring (101c) at the end of pipe. The circlip lock (101b) located just next before the inner profile ring (101c). The circlip lock (101b) fitted between the flat portions (103e) of the coupler (103) and groove (101e) present on the first pipe (101). The reverse threaded check nut ring (101a) help to circlip lock (101b) to be in the locking position and hold the pump of the bore well. The temporary end (103b) of the coupler joined with the second pipe (102). The outer surface of the secondary pipe (102) having groove (102b) for the outer profile ring (102a). The outer profile ring (102a) resists the surge pressure effects generated by the pump.
As mentioned above, all the thread provided in the assembly is the square thread at a right angle and provide the tensile strength the piping assembly .
The following paragraphs describe the present disclosure with reference to Figures 1 to 10. In the figures the same element or elements which have the same functions are indicated by the same reference numerals.
Referring to figures 1 and 2 of the present invention, schematic and exploded view of the assembly with the circlip lock and reverse threaded check nut ring mechanism has shown. The first pipe (101) and the second pipe (102) coupled with each other with the coupler (103). The first pipe (101) at the end having inner profile ring (102c) which located at the middle portion of the coupler (103) in the matching position. The first pipe (101) having the square threads and one groove (101e) for the placing the circlip lock (101b). The circlip lock (101b) is adjacent to the reverse threaded check nut ring (101a). The first pipe (101) provided a flat portion (103e) next before the circlip lock (101b). The reverse threaded check nut ring (101a) having the reverse side thread which matches with the reverse side square thread formed on the permanent ends (103a) of the coupler (103) such a way that it prevents the circlip lock (101b) from to be open. The second pipe (102) having a square thread on the outer surface of the second pipe (102) and a groove positioned at the second coupling end (103b) to provide sit to the outer profile ring (102a) which absorbs all the vibrations generated due to the stroke impact of the on and off operation of the pump.
Referring to Fig. 3 and 9, it shows the circlip lock (101b) made from the metal, rubber and plastic and cross section of the circlip lock (101b) is of a shape selected from round, oval, square and sides flattened which also shown in Fig. 9. It is a ring which is not exactly in the round shape but brake from the end. The circlip lock (101b) is placed at a passage formed by matching the flat portion (103e) made on the coupler (103) with the groove (101e) made on the outer surface of the first pipe (101) after complete threading of the first pipe (101) with the coupler for accommodating the circlip lock (101b) to lock the coupler (103) and the first pipe (101) to form a permanent joint.
Referring to Fig. 4, it shows the first pipe (101) and the second pipe (102) having square thread on the outer surface. The groove (101e) for the circlip lock (101b) on the first pipe (101) clearly shown. The second pipe (102) having groove (102b) for the outer profile ring (102a). Both the pipes (101, 102) coupled through the coupler (103).
Referring to Fig. 5 and 6, Fig. 5 shows the arrangement of the inner profile ring (101c) between the flat portion (103e) of the first pipe (101) and the groove of the coupler (103). The inner profile ring (101c) made of rubber material and provides leakage free assembly for the prolonged use of the piping system with better efficiency. Fig. 6 shows arrangement of the outer profile ring (102a) located between the groove on the second pipe (102) and flat portion (103e) of the coupler (103).
Referring to Fig. 7, the locking means of the present invention shown. The locking means is the combination of the reverse threaded check nut ring (101a) and circlip lock (101b) located at the permanent end (103a) of the coupler (103). The reverse threaded check nut ring (101a) having a reverse threads which also shown in the Fig. 10. The reverse threaded check nut ring (101a) matched with the reverse threads provided on the inner surface of the coupler (103). The circlip lock (101b) located next to the reverse threaded check nut ring (101a) sit in the groove (101e) of the first pipe (101) and the flat portion (103e) of the coupler (103). This arrangement can ensure that the joint cannot be open automatically.
The tables (1 to 8) mentioned below shows the technical specification and experimental data of the present invention. It provides the experimental data of the different factors on which the invention is utilized.
Table 1
SIZE & TYPE Working pressure Wall Thickness in mm Outer Dia in mm Effective length in mm Length of thickness
OD-Outside Dia End Barrel Min Max
ND-Nominal Dia Min/Max Min/Max
OD-33mm(1")ND:25mm
ECO-12.5 (BELL TYPE) 12.5 3.95/4.20 1.60/1.85 32.8 33.2 3000±10mm 120-120
ECO-12.5 (SOCKET TYPE) 12.5 3.95/4.20 1.60/1.85 32.8 33.2 3000±10mm
V4 (Bell Type) 15 4.00/4.25 1.90/2.15 32.8 33.2 3000±10mm 200-200
v4 (Socket Type) 15 4.00/4.25 1.90/2.15 32.8 33.2 3000±10mm
Medium (Socket Type) 21 4.00/4.25 2.25/2.50 32.8 33.2 3000±10mm
Standard (Socket Type) 30 5.20/5.50 3.10/3.40 32.8 33.2 3000±10mm
OD:42mm(1¼")ND:32mm
ECO-12.5 (BELL TYPE) 12.5 4.30/4.50 2.00/2.30 41.8 42.2 3000±10mm 120-120
ECO-12.5 (SOCKET TYPE) 12.5 4.30/4.50 2.00/2.30 41.8 42.2 3000±10mm
V4 (Bell Type) 15 4.50/4.80 2.40/2.70 41.8 42.2 3000±10mm 150-150
v4 (Socket Type) 15 4.50/4.80 2.40/2.70 41.8 42.2 3000±10mm
Medium (Socket Type) 21 4.95/5.25 2.85/3.15 41.8 42.2 3000±10mm
Standard (Socket Type) 25 5.45/5.75 3.35/3.65 41.8 42.2 3000±10mm 200-200
Heavy (Socket Type) 35 6.65/6.95 4.55/4.85 41.8 42.2 3000±10mm 250-250
OD:48mm(1½")ND:40mm
ECO-12.5 (BELL TYPE) 12.5 4.60/4.90 2.30/2.60 47.8 48.2 3000±10mm 120-120
V4-12.5 (SOCKET TYPE) 12.5 4.60/4.90 2.30/2.60 47.8 48.2 3000±10mm
V4 (Bell Type) 15 4.85/5.15 2.75/3.05 47.8 48.2 3000±10mm 150-150
v4 (Socket Type) 15 4.85/5.15 2.75/3.05 47.8 48.2 3000±10mm
Medium (Socket Type) 21 5.35/5.65 3.25/3.55 47.8 48.2 3000±10mm
Standard (Socket Type) 26 6.05/6.35 3.95/4.25 47.8 48.2 3000±10mm 200-200
Heavy (Socket Type) 35 7.30/7.65 5.20/5.60 47.8 48.2 3000±10mm
S. Heavy (Socket Type) 40 8.50/8.85 6.00/6.30 47.8 48.2 3000±10mm 250/250
OD:60mm(2")ND:50mm
ECO MEDIUM 8 4.00/4.30 1.80/2.10 59.8 60.2 3000±10mm 150-150
Medium(Socket Type) 13 5.10/5.40 2.60/2.90 59.8 60.2 3000±10mm
Medium PLUS (Socket Type) 17 5.40/5.70 3.20/3.5 59.8 60.2 3000±10mm 200-200
Standard (Socket Type) 20 6.40/6.70 3.90/4.20 59.8 60.2 3000±10mm
Heavy (Socket Type) 27 7.80/8.10 5.30/6.60 59.8 60.2 3000±10mm
Super Heavy (Socket type) 35 9.00/9.35 6.50/6.85 59.8 60.2 3000±10mm 250-250
OD:60mm(2 1/4")ND:50mm
Heavy (Socket Type) 27 8.70/9.10 6.20/6.60 62.8 63.2 3000±10mm 250-250
Super Heavy
(Socket type) 35 10.0/10.40 7.10/7.50 62.8 63.2 3000±10mm 250-250
OD:75mm(2½")ND:65mm
Medium (Socket Type) 10 5.10/5.35 2.60/2.90 74.8 75.2 3000±10mm 200-200
Standard(Socket Type) 16 6.50/6.80 4.00/4.40 74.8 75.2 3000±10mm
Heavy(Socket Type) 26 9.00/9.40 6.30/5.60 74.8 75.2 3000±10mm
Super Heavy-35kg/cm2 35 10.80/11.20 8.30/8.70 74.8 75.2 3000±10mm 250/250
OD:88mm(3")ND:80mm
Medium (Socket Type) 11 5.70/6.00 3.20/3.50 87.8 88.2 3000±10mm 200-200
Standard (Socket Type) 17 7.50/7.80 5.00/5.40 87.8 88.2 3000±10mm
Heavy (Socket Type) 26 9.80/10.20 7.30/7.70 87.8 88.2 3000±10mm
Super Heavy(Socket type) 35 12.40/11.80 9.70/10.10 87.8 88.2 3000±10mm 250/250
OD:113mm(4")ND:100mm
Medium(Socket Type) 10 6.30/6.70 3.80/4.20 112.7 113.2 3000±10mm 200-200
Standard (Socket Type) 15 8.20/8.60 5.70/6.10 112.7 113.2 3000±10mm
Heavy (Socket Type) 26 12.20/12.60 9.40/9.80 112.7 113.2 3000±10mm
Super Heavy (Socket type) 35 15.10/15.50 12.60/13.00 112.7 113.2 3000±10mm 250/250

Above mentioned Table 1 shows the technical datasheet of the present invention. It provides the experimental data from the range OD (outer diameter)-33mm (1"); ND (normal diameter)-25mm to OD (outer diameter) 113mm (4"); ND (normal diameter)-100mm. The experiment of the present invention is performed on the parameters i.e. working pressure, wall thickness in mm (End/ Barrel (Min/Max)), outer diameter in mm (Min/Max), effective length in mm and length of thickness. The results obtained from the parameters are shows the advantages of the present invention while utilizing it in between given range.
Table 2
TESTING SPECIFICATION
RESISTANCE TO EXTERNAL BLOW AT 0°C (IMPACT TEST)
FOR RAW PIPES
Sr.No. Size in (Inch) CONDITIONING AT 0°C FALLING HEIGHT (mtr) FALLING WEIGHT (kg) No. OF STRIKE ON SAMPLE No. OF SAMPLE
1 1" (ECO-12.5, V4-15/M/S) 1 (hour) 1.5 0.800-1.000 1 25
2 1 1/4" (ECO-12.5, V4-15/M/S/H) 1 (hour) 2.0 1.250 1 25
3 1 1/2" (ECO-12.5, V4-15/M/S/H/SH) 1 (hour) 2.0 1.500 1 25
5 2" (ECO MEDIUM, MEDIUM & MEDIUM PLUS//S/H/SH) 1 (hour) 2.0 2.000-2.500 3 9
6 2 1/4" (H/SH) 1 (hour) 2.0 2.500 3 9
7 2 1/2" (M/S) 1 (hour) 2.0 3.000 4 7
8 2 1/2" (H/SH) 2 (hour) 2.0 3.000 4 7
9 3" ( M/S) 1 (hour) 2.0 3.000 4 7
10 3" ( S/SH) 2 (hour) 2.0 3.000 4 7
11 4" (M/S) 1 (hour) 2.0 3.000 6 5
12 4" (Heavy) 2 (hour) 2.0 3.000 6 5
13 4" (super heavy) 4 (hour) 2.0 3.000 6 5
Above mentioned Table 2 shows the technical datasheet of the impact test conducted on the present invention for resistance to external blow at 0°c. It provides the experimental data for the raw pipes from the range 1" (ECO-12.5, V4-15/M/S) to 4" (super heavy). This experiment of the present invention is performed on the parameters i.e. conditioning at 0°c, falling height (mtr), falling weight (kg), no. of strike on sample and no. of sample. The results obtained from the parameters are shows the advantages of the present invention while conducting the impact test.
Table 3
FOR RAW COUPLER
Sr.No. Size in (Inch) CONDITIONING AT 0°C FALLING HEIGHT (mtr) FALLING WEIGHT (kg) No. OF STRIKE ON SAMPLE No. OF SAMPLE
1 1" (ECO-12.5, V4-15/M/S) 1 (hour) 2.0 2.000 3 9
2 1 1/4" (ECO-12.5, V4-15/M/S/H) 1 (hour) 2.0 2.000 3 9
3 1 1/2" (ECO-12.5, V4-15/M/S/H/SH) 1 (hour) 2.0 3.000 3 9
4 2" (ECO MEDIUM, MEDIUM & MEDIUM PLUS//S/H/SH) 1 (hour) 2.0 4.000 3 9
5 2 1/4" (H/SH) 1 (hour) 2.0 4.000 3 9
6 2 1/2" (M/S) 2 (hour) 2.0 5.000 3 9
7 2 1/2" (H/SH) 1 (hour) 2.0 5.000 4 7
8 3" ( M/S) 2 (hour) 2.0 5.000 4 7
9 3" ( S/SH) 1 (hour) 2.0 5.000 6 5
10 4" (M/S) 2 (hour) 2.0 5.000 8 4
11 4" (Heavy) 1 (hour) 2.0 5.000 8 4
12 4" (super heavy) 2 (hour) 2.0 5.000 12 3
Above mentioned Table 3 shows the technical datasheet of the impact test conducted on the present invention for resistance to external blow at 0°c. It provides the experimental data for the raw coupler from the range 1" (ECO-12.5, V4-15/M/S) to 4" (super heavy). This experiment of the present invention is performed on the parameters i.e. conditioning at 0°c, falling height (mtr), falling weight (kg), no. of strike on sample and no. of sample. The results obtained from the parameters are shows the advantages of the present invention while conducting the impact test on the raw coupler.
Table 4
FOR THREADED COUPLER AT ROOM TEMPERATURE
Sr.No. Size in (Inch) CONDITIONING AT ROOM TEMP. FALLING HEIGHT (mtr) FALLING WEIGHT (kg) No. OF STRIKE ON SAMPLE No. OF SAMPLE
1 1" (ECO-12.5, V4-15/M/S) 2 (hour) 2.0 1.0 3 9
2 1 1/4" (ECO-12.5, V4-15/M/S/H) 2 (hour) 2.0 1.0 3 9
3 1 1/2" (ECO-12.5, V4-15/M/S/H/SH) 2 (hour) 2.0 1.0 3 9
4 2" (ECO MEDIUM, MEDIUM & MEDIUM PLUS//S/H/SH) 2 (hour) 2.0 2.0 3 9
5 2 1/4" (H/SH) 2 (hour) 2.0 2.0 3 9
6 2 1/2" (M/S) 2 (hour) 2.0 2.0 3 9
7 2 1/2" (H/SH) 2 (hour) 2.0 2.0 4 7
8 3" ( M/S) 2 (hour) 2.0 2.0 4 7
9 3" ( S/SH) 2 (hour) 2.0 3.0 6 5
10 4" (M/S) 2 (hour) 2.0 3.0 8 4
11 4" (Heavy) 2 (hour) 2.0 5.0 8 4
12 4" (super heavy) 2 (hour) 2.0 5.0 12 3
Above mentioned Table 4 shows the technical datasheet of the threaded coupler at room temperature. It provides the experimental data for the threaded coupler from the range 1" (ECO-12.5, V4-15/M/S) to 4" (super heavy). This experiment of the present invention is performed on the parameters i.e. conditioning at 27°C, falling height (mtr), falling weight (kg), no. of strike on sample and no. of sample. The results obtained from the parameters are shows the advantages of the present invention while conducting the test on the threaded coupler.
Table 5
PULL OUT TEST LOAD VALUE
Sr.No. SIZE IN (INCH) CLASS SAFE ALLOWABLE PRESSURE (Kg/cm²) PRESENT INEVNTION’S ULTIMATE BREAKING LOAD (kgf) SAFE PULLING LOAD (kgf) ELONGATION % (Max)
1 1" (25 mm) ECO-12.5 12.5 850 500 4.0
V4-15 15 1000 600 4.0
MED 21 1250 750 4.0
STD 30 1900 1100 4.0
2 1 1/4" (32 mm) ECO-12.5 12.5 1300 800 4.0
V4-15 15 1300 800 4.0
MED 21 1800 1050 4.0
STD 25 2550 1500 4.0
HEAVY 35 3100 1800 4.0
3 1 1/2" (40 mm) ECO-12.5 12.5 1700 1000 4.0
V4-15 15 2000 1200 4.0
MED 21 2500 1500 4.0
STD 26 2950 1700 4.0
HEAVY 35 4050 2350 4.0
SUPER HEAVY 40 4100 2400 4.0
4 2" (50 mm) ECO 8 1700 1000 4.0
MED 13 2450 1450 4.0
MED PLUS 17 3150 1850 4.0
STD 20 3600 2100 4.0
HEAVY 27 4700 2800 4.0
SUPER HEAVY 35 5650 3350 4.0
5 2 1/4" (50 MM) HEAVY 27 5200 3040 4.0
SUPER HEAVY 35 6800 3940 4.0
6 2 1/2" (65 mm) MED 10 3100 1800 4.0
STD 16 4650 2700 4.0
HEAVY 26 7000 4200 4.0
SUPER HEAVY 35 9000 5300 4.0
7 3" (80 mm) MED 11 4400 2600 4.0
STD 17 6800 4000 4.0
HEAVY 26 9600 5650 4.0
SUPER HEAVY 35 12400 7300 4.0
8 4" (100 mm) MED 10 6800 4000 4.0
STD 15 10000 5900 4.0
HEAVY 26 15900 9350 4.0
SUPER HEAVY 35 20600 12150 4.0
Above mentioned Table 5 shows the technical datasheet of the pull out test of the present invention. It provides the experimental data for the pull out test from the range 1" (25 mm) to 4" (100 mm). This experiment of the present invention is performed on the parameters i.e. class, ultimate breaking load (kgf), present invention’s ultimate breaking load (kgf), safe pulling load (kgf) and elongation % (max). The results obtained from the parameters are shows the advantages of the present invention while conducting the test on the threaded coupler.
Table 6
TEST PARAMETER OF COLUMN PIPES
Particulars Results
1 TENSILE TEST : Tensile at yield Point Min. 50 Mpa
2 V.S.P TEST : Sample Shall have V.S.P Min. 80°c
3 RESISTANCE TO EXTERNAL BLOW AT 0° C Sample shall have True impact Rate Max. 10 %
4 Resistance to Dichloromethane at Specified Temp Shall not be visible Attack on Inside and Outside Surface like precipitate
5 IZOD IMPACT TEST Izod Impact of Sample Shall not be less than 60 Joule/m
7 DENSITY TEST The Density of Sample within the Range 1.40 -1.43 g/cc
8 Pull Out Test As per Table 5
9 Short Term Pressure Test For Barrel Pipe Nominal Pressure (PN) X 2.5 Time For 1 Hour @ 27° c
10 Bursting Pressure Test Barrel Pipe Nominal Pressure (PN) X 3.0 Time within 60 to 70 Sec @ 27° c
11 Leakage Test for Coupler Assembly Nominal Pressure (PN) X 2.0 Time For 1 Hour @ 27° c
Above mentioned Table 6 shows the particulars and its results of the experiments performed by the present invention as shown in Table 1 to 5. It provides the experimental optimized data shown into the Table 1 to 5. These optimized data received from the different tests provides the utilization for different dimensions (shows in below given Table 7 and 8) of the present invention.
Table 7
CIRCLIP TECHNICAL SPECIFICATION
Sr.No. Size OD (mm) ID (mm) Thickness (mm) Weight (gm)
1 1" 35.21±0.10 29.40±0.10 2.90±0.05 5.0
2 1 1/4" 43.64±0.10 37.87±0.10 2.90±0.05 6.0
3 1 1/2" 52.03±0.10 44.77±0.10 3.63±0.05 12.0
4 2" 63.73±0.10 56.56±0.10 3.63±0.05 14.0
5 2 1/4" 66.73±0.10 59.56±0.10 3.63±0.05 15.0
6 2 1/2" 78.8±0.10 71.56±0.10 3.63±0.05 18.0
7 3" 91.8±0.10 84.56±0.10 3.63±0.05 21.0
8 4" 117.2±0.10 109.2±0.10 4.0±0.05 35.0
Table 8
CHECK NUT TECHNICAL SPECIFICATION
Sl. No. SIZE Collar OD (mm) Majar Thread OD (mm) Minor Thread OD (mm) I. D (mm) Total length (mm) Thread length (mm) Pitch (mm) Depth (mm)
1 1" 42.0 38.5 37.0 33.4 20.0 14.0 3.0 0.75
45.0
50.0
2 1 1/4" 54.0 49.0 47.0 42.4 20.0 14.0 3.0 1.0
57.0
64.0
3 1 1/2" 60.0 55.0 53.0 48.7 20.0 14.0 3.0 1.00
64.0
72.0
4 2" 72.0 67.7 64.8 60.7 21.0 15.0 4.0 1.45
79.0
83.0
5 2 1/4" 85.0 70.7 67.8 63.7 21.0 15.0 4.0 1.45
6 2 1/2" 92.0 82.7 79.8 75.7 21.0 15.0 4.0 1.45
96.0
102.0
7 3" 107.0 95.7 92.8 88.7 21.0 15.0 4.0 1.45
115.0
8 4" 136.0 120.7 117.8 113.7 21.0 15.0 4.0 1.45
142.0
146.0
From aforesaid results of the experiments, the said invention is aimed to provide more efficient pipe and coupler assembly with leak proof and circlip lock arrangement which is lighter in weight, user friendly, smooth surfaced thus energy conserving piping system with the long durability. Although the subject matter has been described with reference to certain preferred embodiments thereof, other embodiments are possible.
Without further description, it is believed that one of ordinary skill in the art can, using the preceding description and the illustrative examples, make and utilize the present invention and practice the claimed methods. It should be understood that the foregoing discussion and examples merely present a detailed description of certain preferred embodiments. It will be apparent to those of ordinary skill in the arts that various modifications and equivalents can be made without departing from the spirit and scope of the invention.
The invention has been explained in relation to specific embodiment. It is inferred that the foregoing description is only illustrative of the present invention and it is not intended that the invention be limited or restrictive thereto. Many other specific embodiments of the present invention will be apparent to one skilled in the art from the foregoing disclosure.
All substitution, alterations and modification of the present invention which come within the scope of the following claims are to which the present invention is readily susceptible without departing from the invention. The scope of the invention should therefore be determined not with reference to the above description but should be determined with reference to appended claims along with full scope of equivalents to which such claims are entitled.
Reference Numerals
100 Piping system
101 First pipe
101a Reverse threaded check nut ring
101b Circlip lock
101c Inner profile ring
101e Groove
102 second pipe
102a Outer profile ring
102b Groove
103 Coupler
103a First coupling end
103b Second coupling end
103c Reverse threads
103d Inner profile ring groove
103e Flat portion

,CLAIMS:WE CLAIM:-
1. A circlip lock with reverse threaded check nut ring mechanism having:
a first pipe (101) permanent side and second pipe (102)temporary side;
a coupler (103) made of polyvinyl chloride comprising;
a first coupling end (103a) and a second coupling end (103b) wherein the first coupling end (103a) and the second coupling end (103b) are configured with square threads on inner surface thereof: a circlip lock (101b)and a groove (101e) for accommodating said circlip lock (101b), wherein the groove (101e) is provided on the outer surface of the first pipe (101);
an inner profile ring (101c) and an inner profile ring groove (103d) provided proximate to a middle portion of the coupler (103) towards the first coupling end (103a) for said inner profile ring (101c);
an outer profile ring (102a) located at the outer surface of the second pipe(102);and
a reverse threaded check nut ring (101a) located at the first coupling end (103a) of the coupler (103),wherein the reverse threaded check nut ring (101a) and the groove (101e) for accommodating the circlip lock (101b) are located adjacent to each other at the first coupling end (103a) of the coupler (103);
said first pipe (101) and said second pipe (102), each made of polyvinyl chloride and comprising square threads on an outer surface and a grooves located at an end of the threads and on the outer surface of each of the pipes, wherein the first pipe (101) is connected to the first coupling end (103a) of the coupler (103) and the second pipe (102) is connected to the second coupling end (103b) of the coupler (103);
an inner profile ring (101c) located between the inner profile ring groove (103d) and first pipe (101);and said circlip lock (101b) is located at a circumferential passage formed by matching the flat portion (103e) made on the coupler (103) with the groove (101e) made on the outer surface of the first pipe (101) after complete threading of the first pipe (101) with the coupler for accommodating the circlip lock (101b) to lock the coupler (103) and the first pipe (101) to form a permanent joint; and
said inner profile ring (101c) is located between said groove (103d) of the coupler (103) and the first pipe (101) made of rubber material and provides leakage free assembly for the prolonged use of the piping system with better efficiency.

2. The circlip lock with reverse threaded check nut ring mechanism as claimed claim 1, wherein the first pipe (101) further comprises a flat portion (103e) thereof which is machined to form a seat for the inner profile ring (101c).

3. The circlip lock with reverse threaded check nut ring mechanism as claimed in claim 1, where a cross section of the circlip lock (101b) is of a shape selected from round, oval, square and sides flattened.

4. The circlip lock with reverse threaded check nut ring mechanism as claimed in claim 1, wherein the circlip lock (101b) made from at least one of rubber, metal, PVC material or any polymeric materials.

5. The circlip lock with reverse threaded check nut ring mechanism as claimed in claim 1, wherein the reverse threaded check nut ring is made from rubber, metal, PVC material or any polymeric materials.

6. The circlip lock with reverse threaded check nut ring mechanism as claimed in claim 1, wherein the second pipe (102) having square threads on the outer surface matched with the inner thread of the temporary end (103b) of the coupler.

7. The circlip lock with reverse threaded check nut ring mechanism as claimed in claim 1, wherein the reverse threaded check nut ring (101a) located at the permanent and (103a) of the coupler (103) and matched with the reverse threads (103c) of the coupler (103).

8. The circlip lock with reverse threaded check nut ring mechanism as claimed in claim 1, wherein said circlip lock (101b) ensures the durability of the lock, provide better tensile strength and prevent the piping system to be open due to the surge pressure generated when pump start or stop.
9. The circlip lock with reverse threaded check nut ring mechanism as claimed in claim 1, wherein the arrangement of the reverse threaded check nut ring (101a) and circlip lock (101b) ensure the permanent locking system for the piping assembly.

10. The circlip lock with reverse threaded check nut ring mechanism as claimed in claim 1, wherein the plurality of outer threads on the first coupling end (103a) and the plurality of inner threads on second coupling end (103b) are square shaped threads.

Dated this on 21st day of June, 2022.