DESC:FIELD OF THE INVENTION

[001] The present invention relates to electrical cable glands and, more particularly to universal electrical cable glands which can be used in multiple application areas.

BACKGROUND OF THE INVENTION

[002] Cable glands are commonly used to attach and secure the end of an electrical cable to an electrical equipment by passing through the wall of the electrical equipment enclosure. Cable gland also seals cable entries to junction boxes for increased safety, particularly in hazardous environments, and provide a leak proof path to prevent the ingress of moisture and dirt into the interior of the electrical equipment from outside.

[003] Cable glands are mechanical cable entry devices used throughout a number of industries in conjunction with cable and wiring in electrical instrumentation and automation systems. Cable glands may be used on all types of electrical power, control, instrumentation, data and telecommunications cables. They are used as a sealing and termination device to ensure that the characteristics of the enclosure which the cable enters can be maintained adequately. Cable glands are made of various materials including plastics, steel, brass or aluminum.

[004] An armored cable is an assembly of multiple stranded conductors in an extruded core of moisture resistant, flame resistant non-metallic material, covered with an overlapping metal armor and jacketed with an extruded non-metallic material that is resistant to destructive environmental conditions. The armor is usually made of interlocking or continuous aluminum or stainless steel, or a metal tape. It should also be noted that the wire shield consists of suitably wrapped grounding conductors. Such cable, because of the double jacketing and the grounding conductors situated between the two jackets, provides more mechanical protection to the conductors which are located at the cable core, in addition to providing a low impedance electrical path for ground fault currents.

[005] The use of armored cables with an elastomer sheath covering is nowadays common in the electrical industry where there is a need to withstand harsh environmental conditions. These cable needs special connectors to provide the connection between the cable and the equipment enclosure.

[006] The cable glands for the armored cable referred herein as armored cable glands help to assemble the armored cable and fit to ensure electrical continuity for grounding between the sheathing the electrical equipment at which the cable terminates. The cable glands which are used for unarmored cables are referred to as unarmored cable glands. There are further types of cable glands which involves use of different seals. Some cable glands use seals for ingress protection which prevents transfer of moisture across the wall of the enclosure where the cable gland is mounted. Another type includes ATEX cable glands which are used in hazardous environment which are susceptible to catching fire by a slight spark, these cable glands have to be fire proof and explosion proof, such that any sparking on one side of cable gland should be quenched by itself and does not travel across cable gland to start any fire. ATEX cable glands can also be unarmored and armored depending upon the requirements.

[007] All above mentioned cable gland types are different in application from each other and each cable gland is formed of different components, which means that if one type of cable gland is available then it can be used for that application only and will not be suitable for another application. For example; if an unarmoured cable gland is bought then it is good for unarmoured cable but will not serve its purpose if it has to be used at a site where armoured cable is involved. This will require buying the armoured type cable gland separately. Similarly, if we have armoured type cable gland then it cannot be used in in explosive atmosphere installations because it lacks some important components which are required to make the cable gland fire and explosion proof.

[008] There are universal type cable glands available in the market which are universal in terms of being used with cables of different diameters. This has advantage that a single cable gland can be used for a range of diameter of cables without requiring to have separate cable gland for each cable diameter. However, they are still not adaptable to suit if the application is changed from one type of cable gland to another.

[009] In view of the limitations inherent in the available cable glands, there exists a need for an improved universal cable gland assembly which overcomes the disadvantages of the prior art and which can be used in a simple, cost effective, reliable, secure and environmentally friendly manner.

[0010] The present invention fulfils this need and provides further advantages as described in the following summary.

SUMMARY OF THE INVENTION

[0011] In view of the foregoing disadvantages inherent in the prior arts, the general purpose of the present invention is to provide an improved combination of convenience and utility, to include the advantages of the prior art, and to overcome the drawbacks inherent therein.

[0012] A primary objective of the present invention is to provide a universal cable gland assembly which is adapted to be used with different type of cables and which is simple, cost effective and easy to manufacture.

[0013] In one aspect, the present provides a universal cable gland assembly to install a cable on an enclosure. The universal cable gland assembly comprises an entry nut, a cone body, a compression ring and an end nut.

[0014] In another aspect of the present invention, the entry nut is a hollow cylindrical structure with a collar that divides the entry nut into a first part which is disposed inside the enclosure and a second part which is outside the enclosure, the cone body is a hollow cylindrical structure with a hexagonal collar that divides the cone body into a straight portion and a conical portion, such that the straight portion is structured to engage with the second part of the entry nut, the compression ring is a hollow cylinder with threads over its external surface and its inner diameter varies from a first end to a second end in a tapered manner, such that the inner side has smaller diameter at the first end which engages with the cone body and the end nut is a hollow cylinder having a front portion and a rear portion divided by a hexagonal collar which is located on the external surface proximal to the rear portion of the end nut, such that the front portion of the end nut is adapted to engage with the second part of the entry nut to form the universal cable gland assembly.

[0015] In yet another aspect of the present invention, the universal cable gland assembly further comprises a sealing arrangement for sealing the universal cable gland.

[0016] In a further aspect of the present invention, the first part of the entry nut is provided with external threads and the second part is provided with threads on both internal and external surfaces.

[0017] In one aspect of the present invention, the straight portion of the cone body has external threads over it which are adapted to engage with the inner threads on the second part of the entry nut, such that the entry nut and the cone body can engage with each other by inserting the straight portion of cone body in the entry nut on rotation.

[0018] In another aspect of the present invention, the front portion of the end nut includes internal threads which are adapted to engage with the external threads of the second part of the entry nut thereby making the cable gland assembly.

[0019] In yet another aspect of the present invention, the second part of the entry nut further includes a ring-shaped slot on its external surface called seal seat which is used to install an IP seal on the cable gland for ingress protection.

[0020] In a further aspect of the present invention, the inner diameter of the cone body is same throughout its length and the conical portion has outer shape as cone, such that the conical portion is adapted to allows resting the cable armor over it.

[0021] In one aspect of the present invention, the second end of the compression ring is adapted to engage with the end nut and has bigger inner diameter.

[0022] In another aspect of the present invention, the conical portion of the cone body and the compression ring engage with each other to grip a cable armor on the cone body.

[0023] In yet another aspect of the present invention, the front portion of the end nut further includes a step located inside it at a predetermined distance along its length, such that the step has step threads on its surface which are adapted to engage with the external threads of the compression ring.

[0024] In a further aspect of the present invention, the compression ring engages with the step threads, such that when the compression ring is rotated it travels inside the end nut and moves towards the rear portion of the end nut.

[0025] In one aspect of the present invention, the external diameter of the compression ring is equal to the diameter of the step of the end nut.

[0026] In another aspect of the present invention, the end nut further includes a cavity for housing a second seal in the end nut, the cavity starts after the step and ends with a recess proximal to the rear portion of the end nut to prevent the second seal to come out of the end nut.

[0027] In yet another aspect, the universal cable gland assembly of the present invention, further comprises a first seal, a second seal and a flameproof seal to form a fireproof cable gland to be used with an armoured cable.

[0028] In a further aspect of the present invention, the flameproof seal is disposed in the entry nut and the cone body is also engaged with the entry nut to squeeze and install the flameproof seal in the fireproof cable gland to be used with an armoured cable.

[0029] In one aspect of the present invention, the second seal is inserted in the cavity of the end nut and then the compression ring is inserted in the end nut which engages with the step threads and squeeze the second seal to install the second seal in the end nut.

[0030] In another aspect of the present invention, the flame proof seal is made from a customized polymeric material to suit the dimensional and elastic property requirements of the fireproof cable gland.

[0031] In yet another aspect of the present invention, the flame proof seal is in a form of a hollow cylinder with a V-shaped wall.

[0032] In a further aspect of the present invention, the components of the universal cable gland assembly namely the entry nut, the cone body and a flameproof seal are used to form a fireproof cable gland to be used with an un-armoured cable.

[0033] In one aspect of the present invention, the components of the universal cable gland assembly namely the entry nut, the cone body, the compression ring, the end nut, a first seal and a second seal are used to form an Industrial cable gland to be used with an armoured cable.

[0034] In another aspect of the present invention, the components of the universal cable gland assembly namely the entry nut, the cone body, the compression ring and the end nut are used to form a cable gland assembly of BW type to be used with an armoured cable.

[0035] In yet another aspect of the present invention, the sealing arrangement includes at least one of an IP (Ingress Protection) seal, a flame proof seal or a combination thereof.

[0036] These together with other aspects of the invention, along with the various features of novelty that characterize the invention, are pointed out with particularity in the description annexed hereto and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and the specific objects attained by its uses, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated exemplary embodiments of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The advantages and features of the present invention will become better understood with reference to the following more detailed description taken in conjunction with the accompanying drawings in which:

[0038] FIG. 1 illustrates an exploded view of the universal cable gland assembly showing different components, according to one embodiment of the present invention;

[0039] FIG. 2 illustrates a schematic view of the entry nut, according to one embodiment of the present invention;

[0040] FIG. 3 illustrates a schematic view of the cone body, according to one embodiment of the present invention;

[0041] FIG. 4 illustrates a schematic view of the end nut, according to one embodiment of the present invention;

[0042] FIG. 5 illustrates a schematic view of the compression ring, according to one embodiment of the present invention;

[0043] FIG. 6 illustrates a schematic view of the ATEX Un-armoured cable gland, according to a one embodiment of the present invention;

[0044] FIG. 7 illustrates a schematic view of Armoured Industrial cable gland, according one embodiment of the present invention; and

[0045] FIG. 8 illustrates a schematic view of the Armoured cable gland BW type, according to one embodiment of the present invention.

[0046] Like reference numerals refer to like parts throughout the several views of the drawings.

DETAILED DESCRIPTION OF THE DRAWINGS

[0047] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details.

[0048] As used herein, the term ‘plurality’ refers to the presence of more than one of the referenced item and the terms ‘a’, ‘an’, and ‘at least’ do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.

[0049] Reference herein to “one embodiment” or “another embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase “in one embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Further, the diagrams representing one or more embodiments of the invention do not inherently indicate any particular order nor imply any limitations in the invention.

[0050] The terms ‘cable gland’ or ‘cable gland assembly’ interchangeably used in the present description, convey the same meaning and refer to the safe object.

[0051] Referring to FIG. 1, that illustrates an exploded view of the universal cable gland assembly 10 showing different components, according to one embodiment of the present invention. The universal cable gland assembly 10 comprises an entry nut 12, a cone body 14, a compression ring 16 and an end nut 18. and the end nut 18 is a hollow cylinder having a front portion and a rear portion divided by a hexagonal collar which is located on the external surface proximal to the rear portion of the end nut 18, such that the front portion of the end nut 18 is adapted to engage with the second part of the entry nut 12 to form the universal cable gland assembly.

[0052] In one embodiment of the present invention, the universal cable gland (10) further comprises a sealing arrangement. The sealing member may be IP (Ingress Protection) seal or flame proof seal or a combination of both type of seals. The universal cable gland assembly 10 is used for mounting the cable on an enclosure wall (not shown) having a hole.

[0053] Referring to FIG. 2, that illustrates a schematic view of the entry nut 12, according to one embodiment of the present invention. The entry nut 12 is a hollow cylindrical structure with a collar 30 that divides the entry nut 12 into a first part 32 which is disposed inside the enclosure and a second part 34 which is outside the enclosure. The enclosure may be a junction box. The entry nut 12 fits on the enclosure wall with the collar 30 outside the enclosure. The inner and outer diameters of the entry nut 12 are designed as per the diameter of the cable and the hole for cable gland in the enclosure wall respectively.

[0054] In one preferred embodiment of the present invention, the first part 32 of the entry nut is provided with external threads and the second part 34 is provided with threads on both internal and external surfaces. The external threads on the first part 32 of the entry nut may engage with inner threads provided in the hole of the enclosure to mount the entry nut 12 on the enclosure wall. In other embodiment an additional nut may be provided in the absence of inner threads in the hole of enclosure to engage with the external threads of the first part 32 of the entry nut and hold the entry nut 12 from inside the enclosure.

[0055] In one embodiment of the present invention, the second part 34 of the entry nut further includes a seal seat 36 which is a ring-shaped slot on its external surface used to install an IP seal on the cable gland 10 for ingress protection.

[0056] Referring to FIG. 3, that illustrates a schematic view of the cone body 14, according to one embodiment of the present invention. The cone body 14 is a hollow cylindrical structure with a hexagonal collar 40 that divides the cone body 14 into a straight portion 42 and a conical portion 44, such that the straight portion 42 is structured to engage with the second part 34 of the entry nut. In one embodiment of the present invention, the straight portion 42 of the cone body 14 has external threads over it which are adapted to engage with the inner threads on the second part 34 of the entry nut, such that the entry nut 12 and the cone body 14 can engage with each other by inserting the straight portion 42 of cone body in the entry nut 12 on rotation.The diameter of the straight portion 42 of the cone body is approximately equal to the internal diameter of the entry nut 12.

[0057] In one preferred embodiment of the present invention, the inner diameter of the cone body 14 is same throughout its length and the conical portion 44 has outer shape as cone, such that the conical portion 44 is adapted to allow resting of a cable armor over it. The inner and outer diameters of the cone body 14 are designed as per the diameter of the cable on which it is to be installed. The conical portion 44 of the cone body helps to rest a cable armor over it and the cable core passes through the hole of the cone body 14.

[0058] Referring to FIG. 4, that illustrates a schematic view of the end nut 18, according to one embodiment of the present invention. The end nut 18 is a hollow cylinder having a front portion 62 and a rear portion 64 divided by a hexagonal collar 60 which is located on the external surface proximal to the rear portion 64 of the end nut, such that the front portion 62 of the end nut is adapted to engage with the second part 34 of the entry nut to form the universal cable gland assembly 10. The hexagonal collar 60 provides a grip while rotating the end nut 18. The front portion 62 of the end nut includes internal threads which are adapted to engage with the external threads of the second part 34 of the entry nut thereby making the cable gland assembly 10.

[0059] In one embodiment of the present invention, the front portion 62 of the end nut further includes a step 66 located inside it at a predetermined distance along its length, such that the step 66 has step threads on its surface which are adapted to engage with the external threads of the compression ring 16. The step 66 is like a ring with a predefined width along the axis of the end nut 18 and a predefined thickness perpendicularly towards the axis of the end nut 18. The step 66 is created in the end nut 18 at a predetermined distance along the length such that the step 66 has a inner diameter less than the internal diameter of the front portion 62 of the end nut. The step 66 is straight and also includes threads on its surface hereafter referred as ‘step threads’. The diameter of the step 66 created is such that the step threads corresponds with the outer threads of the compression ring 16. The compression ring 16 engages with the step threads, such that when the compression ring 16 is rotated, it travels inside the end nut 18 and moves towards the rear portion 64 of the end nut.

[0060] The dimensions of the step 66 and step threads are decided based on the dimensions of the compression ring 16 and the cable. The width of the step 66 may be less than the width of the compression ring 16.

[0061] In one embodiment of the present invention, the end nut 18 further includes a cavity 68 for housing a second seal 70 in the end nut 18. The cavity 68 starts after the step 66 along the length of the end nut 18 towards the rear portion 64 of the end nut. The cavity 68 ends with a recess proximal to the rear portion 64 to prevent the second seal 70 to come out of the end nut 18 on installation of the cable gland. The second seal 70 may be made from an elastically deformable material known in the art, such as rubber or plastic.

[0062] Referring to FIG.5, that illustrates a schematic view of the compression ring 16, according to one embodiment of the present invention. The compression ring 16 is a hollow cylinder with threads over its external surface and its inner diameter varies from a first end 50 to a second end 52 in a tapered manner, such that the inner side has smaller diameter at the first end 50 which engages with the cone body 14. The compression ring 16 has bigger the inner diameter at the second end 52 which engages with the end nut 18.

[0063] In one embodiment of the present invention, the conical portion 44 of the cone body and the compression ring 16 engage with each other to grip a cable armor on the cone body 14. The external diameter of the compression ring 16 is equal to the inner diameter of the step 66 of the end nut, such that when the compression ring 16 is inserted inside the end nut 18 and rotated its external threads engage with the step threads of the end nut 18. When the second seal 70 is placed in the cavity 68 of the end nut and the compression ring 16 is inserted and rotated, it pushes the second seal 70 and squeezes it to provide desired sealing effect.

[0064] As the end nut 18 is tightened, the interior threads of the front portion 62 of the end nut engages with the external threads of the second part 34 of the entry nut and the cone body 14 gets pushed to firmly fasten a cable armor over the conical portion of the cone body 14 to provide overall anchoring arrangement to the cable. This facilitates fastening and electrical grounding effects. It is to be noted that the different components of the universal cable gland assembly 10 such as the entry nut 12, cone body 14, compression ring 16 and end nut 18 may be made of any metallic material such as brass or nickel-plated brass material.

[0065] The different components of the universal cable gland assembly 10, according to the present invention can be used to form different cable glands for different applications.

[0066] In one embodiment of the present invention, the universal cable gland assembly 10, further comprises a first seal 72, a second seal 70 and a flameproof seal 74 to form a fireproof cable gland 100 to be used with an armoured cable. The fireproof cable gland 100 to be used with an armoured cable herein also referred as an ATEX Armoured cable gland assembly as shown in FIG.1.

[0067] During installation, the flameproof seal 74 is inserted in the entry nut 12, then the cone body 14 is also inserted in the entry nut 12 and tightened which squeezes the flameproof seal 74 and forms a first sub-assembly of entry nut 12, flameproof seal 74 and the cone ring 16. Now this first sub assembly may be mounted on the hole of the enclosure wall from the end nut 18 as explained earlier. Now the second seal 70 is inserted in the cavity 68 of the end nut and then the compression ring 16 is also inserted and rotated so that its external threads engages with the step threads and squeeze the second seal 70 to achieve desired tightening. This forms the second sub assembly. Now the end nut 18 and entry nut 12 are engaged with each other by their complementary threads to combine the first and the second sub-assemblies into the ATEX armoured cable gland assembly 100.

[0068] The ATEX armored cable gland 100 can be used in flammable environments and the presence of flameproof seal 74 prevents any transfer of spark across the cable gland 100 and contains any potential spread of fire.

[0069] In one embodiment of the present invention, the flame proof seal 74 is a special seal made from customized polymeric material to suit the dimensional and elastic property requirement of the cable gland to make the cable gland assembly flameproof and fireproof in the flammable environment. The flameproof seal is like a hollow cylinder with V-shaped wall as shown in FIG.1

[0070] In another embodiment of present invention, the components of the universal cable gland assembly 10 namely the entry nut 12, the cone body 14 and a flameproof seal 74 are used to form a fireproof cable gland 200 to be used with an un-armoured cable. The fireproof cable gland 200 to be used with an un-armoured cable herein also referred as ATEX Un-armoured cable gland is shown in FIG. 6. For forming the assembly, the flameproof seal 74 is inserted into the entry nut 12 and then cone body 14 is attached to it using the threads. This is flameproof cable gland 200 used for unarmoured cables, so the components like compression ring 16, end nut 18 and IP seals may not be required.

[0071] In another embodiment of present invention, the universal cable gland assembly 10 further comprises a first seal 72 and a second seal 70 are used to form an Industrial cable gland 300 to be used with an armoured cable. The components entry nut, cone body 14, compression ring 16, end nut 18, first seal and second seal are used to form an Armoured Industrial cable gland 300 assembly as shown in FIG. 7. This is similar to ATEX armoured cable gland 100 except the absence of flameproof seal 74. Here also two sub-assemblies are joined to form the Armoured industrial cable gland 300. For installing the cone body 14 is inserted in the entry nut 12 and tightened to form a first sub-assembly of entry nut 12 and cone body 14. The first seal 72 is also mounted over the entry nut 12 in its seal seat 36. Now this first sub assembly may be mounted on the hole of the enclosure wall from the end nut 18 as explained earlier. Now the second seal 70 is inserted in the cavity 68 of the end nut and then the compression ring 16 is also inserted and rotated so that its external threads engages with the step threads and squeeze the second seal 70 to achieve desired tightening. This forms the second sub assembly. The end nut 18 and entry nut 12 are engaged with each other by their complementary threads to combine the two sub-assemblies into the Armoured Industrial cable gland assembly 300.

[0072] In another embodiment of the present invention, the components of the universal cable gland assembly (10) namely the entry nut 12, cone body 14, compression ring 16 and end nut 18 are used to form an Armoured cable gland assembly of BW type 400 as shown in FIG. 8. This cable gland does not include any seals. Such type of cable gland is used in telecommunication, electronic equipment and mostly which are used in indoor applications and do not require sealing.

[0073] As we can see the universal cable gland assembly 100 of the present invention has been used to make four different type of cable glands for different applications. Some of the available components are removed to serve different purposes and form different cable glands.

[0074] The universal cable gland assembly 10 of the present invention may provide advantages as below:
- Universality: same components are used to form different type of cable glands which are used in different applications
- Simple Locking: The thread arrangement at every interface makes the locking very simple and convenient
- Reduced number of components: The ATEX Armoured type cable gland has less components as compared to same cable glands available in market
- Simple Design

[0075] Although a particular exemplary embodiment of the invention has been disclosed in detail for illustrative purposes, it will be recognized to those skilled in the art that variations or modifications of the disclosed invention, including the rearrangement in the configurations of the parts, changes in steps and their sequences may be possible. Accordingly, the invention is intended to embrace all such alternatives, modifications and variations as may fall within the spirit and scope of the present invention.

[0076] The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching.

[0077] The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the appended claims.
,CLAIMS:WE CLAIM:

1. A universal cable gland assembly (10) to install a cable on an enclosure, comprising:
- an entry nut (12), the entry nut (12) is a hollow cylindrical structure with a collar (30) that divides the entry nut (12) into a first part (32) disposed inside the enclosure and a second part (34) disposed outside the enclosure,
- a cone body (14), the cone body (14) is a hollow cylindrical structure with a hexagonal collar (40) that divides the cone body (14) into a straight portion (42) and a conical portion (44) , such that the straight portion (42) is structured to engage with the second part (34) of the entry nut (12);
- a compression ring (16), the compression ring (16) is a hollow cylinder with threads over its external surface and its inner diameter varies from a first end (50) to a second end (52) in a tapered manner, such that the inner side has smaller diameter at the first end (50) which engages with the cone body (14); and
- an end nut (18), the end nut (18) is a hollow cylinder having a front portion (62) and a rear portion (64) divided by a hexagonal collar (60) which is located on the external surface proximal to the rear portion (64) of the end nut (18), such that the front portion (62) of the end nut (18) is adapted to engage with the second part of the entry nut (12) to form the universal cable gland assembly.

2. The universal cable gland assembly (10) according to claim 1, further comprises a sealing arrangement for sealing the universal cable gland.

3. The universal cable gland assembly (10) according to claim 1, wherein the first part of the entry nut (12) is provided with external threads and the second part is provided with threads on both internal and external surfaces.

4. The universal cable gland assembly (10) according to claim 3, wherein the straight portion of the cone body (14) has external threads over it which are adapted to engage with the inner threads on the second part (34) of the entry nut, such that the entry nut (12) and the cone body (14) can engage with each other by inserting the straight portion of cone body (14) in the entry nut (12) on rotation.

5. The universal cable gland assembly (10) according to claim 3, wherein the front portion of the end nut (18) includes internal threads which are adapted to engage with the external threads of the second part of the entry nut (12) thereby making the cable gland assembly.

6. The universal cable gland assembly (10) according to claim 1, wherein the second part of the entry nut (12) further includes a seal seat on its external surface which is used to install an IP seal on the cable gland for ingress protection.

7. The universal cable gland assembly (10) according to claim 1, wherein the inner diameter of the cone body (14) is same throughout its length and the conical portion (44) has outer shape as cone, such that the conical portion (44) is adapted to allow resting of a cable armor over it.

8. The universal cable gland assembly (10) according to claim 1, wherein the second end of the compression ring (16) is adapted to engage with the end nut (18) and has bigger inner diameter.

9. The universal cable gland assembly (10) according to claim 1, wherein the conical portion of the cone body (14) and the compression ring (16) engage with each other to grip a cable armor on the cone body (14).

10. The universal cable gland assembly (10) according to claim 1, wherein the front portion of the end nut (18) further includes a step located inside it at a predetermined distance along its length, such that the step has step threads on its surface which are adapted to engage with the external threads of the compression ring (16).

11. The universal cable gland assembly (10) according to claim 10, wherein the compression ring (16) engages with the step threads, such that when the compression ring (16) is rotated it travels inside the end nut (18) and moves towards the rear portion of the end nut (18).

12. The universal cable gland assembly (10) according to claim 10, wherein the external diameter of the compression ring (16) is equal to the diameter of the step of the end nut (18).

13. The universal cable gland assembly (10) according to claim 10, wherein the end nut (18) further includes a cavity for housing a second seal in the end nut (18), the cavity starts after the step and ends with a recess proximal to the rear portion of the end nut (18) to prevent the second seal to come out of the end nut (18).

14. The universal cable gland assembly (10) according to claim 1, further comprising a first seal (72), a second seal (70) and a flameproof seal (74) to form a fireproof cable gland (100) to be used with an armoured cable.

15. The universal cable gland assembly (10) according to claim 14, wherein the flameproof seal is disposed in the entry nut (12) and the cone body (14) is also engaged with the entry nut (12) to squeeze and install the flameproof seal (74) in the fireproof cable gland (100) to be used with an armoured cable.

16. The universal cable gland assembly (10) according to claim 14, wherein the second seal is inserted in the cavity of the end nut (18) and then the compression ring (16) is inserted in the end nut (18) which engages with the step threads and squeeze the second seal to install the second seal in the end nut (18).

17. The universal cable gland assembly (10) according to claim 14, wherein the flame proof seal is made from a customized polymeric material to suit the dimensional and elastic property requirements of the fireproof cable gland.

18. The universal cable gland assembly (10) according to claim 14, wherein the flame proof seal is in a form of a hollow cylinder with a V-shaped wall.

19. The universal cable gland assembly (10) according to claim 1, wherein the components of the universal cable gland assembly (10) namely the entry nut (12), the cone body (14) and a flameproof seal are used to form a fireproof cable gland (100) to be used with an un-armoured cable.

20. The universal cable gland assembly (10) according to claim 1, further comprising a first seal (72) and a second seal (70) to form an Industrial cable gland to be used with an armoured cable.

21. The universal cable gland assembly (10) according to claim 1, wherein the components of the universal cable gland assembly (10) namely the entry nut (12), the cone body (14), the compression ring (16) and the end nut (18) are used to form a cable gland assembly of BW type (400) to be used with an armoured cable.

22. The universal cable gland assembly (10) according to claim 2, wherein the sealing arrangement includes at least one of an IP (Ingress Protection) seal, a flame proof seal or a combination thereof.