FORM-2
THE INDIAN PATENTS ACT, 1970
(39 of 1970)
&
THE INDIAN PATENTS RULE, 2003
COMPLETE SPECIFICATION
(See section 10; rulel3)
REFUTABLE AIR PROPELLED SILICON AEROSOL SPRAY
SYSTEM
RELIANCE INDUSTRIES LIMITED
an Indian Company
of 3rd Floor, Maker Chambers IV, 222, Nariman Point,
Mumbai - 400021, Maharashtra, India
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.

FIELD OF THE DISCLOSURE
The present disclosure relates to a melt spinning process, more particularly, the present disclosure relates to a system for clearing polymer melt deposited over an extrusion surface of a spinneret used in a melt spinning process.
BACKGROUND
Polymeric fibers are generally manufactured by a melt spinning process. In the melt spinning process, the polymer is melted, the polymer melt so formed is pumped through a spinneret / die provided with a plurality of holes configured thereon. The polymer melt is forced to pass through the plurality of holes configured on the spinneret / die to result in formation of molten fibers. The molten fibers extruded from the holes configured on the spinneret / die are cooled, solidified, and collected on a take-up wheel / bobbin. The stretching of the fibers in both the molten and solid states provides for orientation of the polymer chains along the fiber axis. Polymers such as poly (ethylene terephthalate) and nylon 6, 6 are melt spun in high volumes.
The polymer melt is extruded through the plurality of holes configured on the spinneret / die for facilitating formation of the molten fibers. However, during the extrusion of the polymer melt through the holes configured on the spinneret / die, the polymer melt gets deposited over an extrusion surface of the holes configured on the spinneret. Over a period of time the polymer melt gets accumulated on the

extrusion surface of the holes configured on the spinnerets and the accumulated polymer melt starts degrading. Such degraded deposits of the polymer melt on the extrusion surface of the holes is undesirable as such deposits block the holes and accordingly may damage the filaments as the polymer melt is extruded through the extrusion surface of the holes. More specifically, in case of the melt spinning process used for manufacturing of Polyester, the polymer melt is extruded through the spinnerets, is cooled and thereafter wound over the bobbins. However, the polymer melt used for the manufacturing of Polyester has visco-elastic nature and due to visco-elastic nature of the polymer melt, the polymer melt swells as soon as the polymer melt comes out of the capillary of the spinneret. The swelling of the polymer melt due to visco-elastic nature thereof is known as die-swell.
Due to die-swell the polymer melt sticks over the extrusion surface of the holes configured on the spinneret and degrades over a period of time. The degraded polymer melt keeps on accumulating over the extrusion surface of the holes configured on the spinneret and eventually blocks the flow of the polymer melt through the extrusion surface of the holes, thereby causing damage to the filaments. In order to prevent damage to the filaments extruded from the extrusion surface of the holes, the holes are required to be cleaned regularly.
The cleaning of extrusion equipment such as the holes configured on the spinneret is becoming increasingly critical to the fiber industry. Further, with increase in

complexity of capillary geometries of spinnerets, precision cleaning of the spinnerets has become more important and more difficult. In order to wipe the extrusion surface of the holes configured on the spinneret a variety of cleaning agents are known in the prior art. More specifically, the use of silicon oil with certain other chemicals (hereinafter called as "product") for cleaning the spinnerets is suggested. The pressurized "product" is directed towards at the holes configured on the spinnerets that are loaded with the degraded polymer melt, thereby creating a thin layer of the "product" over the spinneret extrusion face. The silicon oil contained in the "product" facilitates in wiping and minimizing the sticking of the polymer melt over the extrusion surface of the holes configured on the spinnerets.
The prior art suggests various means for directing the product to the holes configured on the spinnerets. Conventionally, an air-tight container or can that is structurally similar to an aerosol container is used for holding, pressurizing and dispensing the "product", the pressurized "product" dispensed from the air-tight container is directed towards the holes configured on the spinnerets. The pressurized "product" strikes the polymer melt accumulated over the extrusion surface of the holes configured on the spinnerets, thereby causing dis-lodging of the polymer melt and clearing the passage for the free flow of the polymer melt there-through. The "product" held inside the air-tight container has to be maintained in a pressurized condition for facilitating dispensing of the "product"

from the air-tight container and effective working of the "product". The prior art suggests different methods for maintaining the "product" in a pressurized condition. More specifically, the air-tight container is filled with the "product" and the "product" held inside the air-tight container is pressurized through a low boiling point liquid (hereinafter called as "propellant"). Due to volatile nature of the "propellant", some of the "propellant" evaporates inside the air-tight container to maintain an even pressure inside the air-tight container. The air-tight container further includes a nozzle and a trigger for facilitating opening of the nozzle. The pressurized product along with the propellant is dispensed out from the nozzle, when the trigger is actuated. More specifically, the "product" along with the "propellant" are dispensed out through a small hole in the nozzle, when the trigger is actuated. As soon as the "product" and the "propellant" are dispensed out of the air-tight container, the droplets of propellant evaporate rapidly, leaving the "product" suspended as very fine particles or droplets. The air-tight container known in the prior art are of aluminum material.
However, the conventionally known air-tight containers used for directing the pressurized "product" towards the blocked holes of the spinnerets have drawbacks associated with use thereof. The conventionally known air-tight containers are required to be disposed off and cannot be re-used, once the "product" or the "propellant" held inside the air-tight containers gets exhausted. Further, the "propellant" used for propelling the "product" held inside the air-tight containers

is expensive and also leads to environmental issues and health hazards. Still further, the conventionally known air-tight containers fail to maintain the "product" in a pressurized state as the "propellant" gets exhausted with the regular use thereof and the depleted "propellant" fails to propel the "product" out of the container. Furthermore, as the conventionally known air-tight containers are unable to dispense the product, when the "propellant" gets exhausted while the airtight containers still contains the "product" and accordingly, such air-tight containers with depleted content of "propellant" are required to be disposed off with some "product" still remaining therein. So, there is wastage of the "product". Furthermore, filling of the air-tight containers with the "producf'as well as the "propellant" is complex.
In case of the refillable spray canister in accordance with the prior art, once the product inside the canister gets exhausted, the canister has to be filled with compressed gas at dangerously high levels of pressure for maintaining sufficient pressure inside the canister for dispensing the "product" out of the canister, this works but the spray quantity and quality varies as the pressure inside the canister reduces. The aerosol spray canisters of the prior art had to be made of robust construction, thereby increasing the manufacturing cost of the aerosol spray canister. Further, filling of the aerosol of the spray canisters at such dangerously high levels of pressure may cause accidents.

Further, there are a few prior art documents that refer to spraying arrangements. For example, US Published Patent Application US2009/0230215 (hereinafter referred to as '215 US Published Patent Application) discloses a spraying device used for spraying an aerosol to a lubricating location e.g. a place of cutting or deforming objects. The spraying device utilizes an aerosol which contains liquid particles in a gas stream, and spraying takes place by the pressure energy of the gas/ liquid stream. The spraying device is connected to a liquid feed line and a gas feed line, the gas feed line is separate from liquid feed line. However, the spraying device disclosed in the '215 US Published Patent Application is ineffective.
Further, the US Granted Patent US7674341 (hereinafter referred to as '341 US Patent) discloses an apparatus and methods for cleaning combustion systems. The apparatus is used for delivering through a fluid delivery conduit a first cleaning fluid and the electrostatically charged second cleaning fluid to the internal combustion engine. The first vessel contains first cleaning fluid and pressurized air and the second vessel includes second cleaning fluid and pressurized air. However, the apparatus disclosed in the '341 US Patent is complex.
Accordingly, there is a need for a container for dispensing and directing "product" held therein towards the blocked holes of spinnerets that eliminate the drawbacks associated with use of conventional aerosol containers for dispensing the "product". There is a need for a container for dispensing and directing "product"

that is refillable and reusable. Further, there is a need for a container for dispensing and directing "product" to the blocked holes of spinnerets that is economical to use. Furthermore, there is a need for a container for dispensing and directing "product" to the blocked holes of spinnerets that prevents wastage of the "product" as well as the "propellant". Further, there is a need for a container for dispensing and directing "product" to the blocked holes of the spinnerets that eliminates the use of environmentally harmful "propellant" for propelling the "product" out of the container. Furthermore, there is a need for a container for dispensing and directing "product" held therein towards the blocked holes of spinnerets that constantly maintains the product in a pressurized state. Still further, there is a need for a container for dispensing and directing "product" that is convenient to use and simple in construction.
OBJECTS OF THE PRESENT INVENTION:
An object of the present invention is to provide a system for dispensing and directing a cleaning fluid under pressure towards blocked holes of extrusion equipment used in a melt spinning process.
Another object of the present invention is to provide a system for dispensing and directing a cleaning fluid under pressure towards blocked holes of extrusion equipment for facilitating wiping of the polymer melt deposited over an extrusion surface.

Another object of the present invention is to provide a system for dispensing and directing a cleaning fluid under pressure that eliminates the use of environmentally harmful propellants for propelling the cleaning fluid and the drawbacks associated with use thereof.
Yet another object of the present invention is to provide a system for dispensing and directing a cleaning fluid under pressure that prevents wastage of the cleaning fluid.
Still another object of the present invention is to provide a system for dispensing and directing a cleaning fluid that is environment friendly.
Yet another object of the present invention is to provide a system for dispensing and directing a cleaning fluid that utilizes a reusable container for holding the cleaning fluid.
Yet another object of the present invention is to provide a system for dispensing and directing a cleaning fluid that constantly maintains appropriate pressure inside a container holding the cleaning fluid.

Another object of the present invention is to provide a system for dispensing and directing a cleaning fluid that utilizes an inexpensive propellant for propelling the cleaning fluid out of a container.
Still another object of the present invention is to provide a system for dispensing and directing a cleaning fluid that utilizes an environment friendly propellant for propelling the cleaning fluid out of a container.
Still another object of the present invention is to provide a system for dispensing and directing a cleaning fluid that may be incorporated in the current industrial set-up of a spinning plant without requiring many changes.
SUMMARY
A spray bottle in accordance with an embodiment includes a body, an opening, a connector element, a non-return valve (NRV) and an aerosol valve and an actuator. The body holds working fluid and propelling fluid under pressure, wherein the propelling fluid facilitate dispensing of the working fluid from the spray bottle. The opening is formed on the body of the spray bottle. The connector element removably engages with the opening formed on the spray bottle for facilitating filling and re-filling of the spray bottle with the working fluid. The non-retum valve (NRV) is mounted on the connector element for facilitating receiving of the propelling fluid inside the body of the spray bottle and preventing

back-flow of the propelling fluid received by the body of the spray bottle. The aerosol valve is mounted on the connector element. The actuator for the aerosol valve facilitates dispensing of the working fluid from the aerosol valve upon actuation thereof.
A system for dispensing and directing working fluid under pressure towards predetermined locations include a propelling fluid supply pipe and a plurality of spray assemblies. Each spray assembly caters a pre-determined location and includes a spray bottle and a connecting pipe. The spray bottle holds, dispenses and directs working fluid under pressure towards the pre-determined location. The connecting pipe connects the spray bottle to the propelling fluid supply pipe, for supplying the propelling fluid under pressure to the spray bottle of the spray assembly.
Typically, the working fluid is a cleaning fluid for cleaning extrusion surfaces of extrusion equipment.
Generally, the system for dispensing and directing working fluid further includes a pressure regulator for regulating pressure of the propelling fluid flowing through the propelling fluid supply pipe.
Preferably, the non-return valve is of steel.

More specifically, the non-return valve is a poppet type non return valve. Typically, the system for dispensing and directing working fluid further includes a plurality of distribution lines branching from the propelling fluid supply line, wherein each distribution line is connected to a connector element of a corresponding spray assembly via a corresponding connecting pipe for supplying the propelling fluid to the spray bottle and facilitate spraying of the working fluid at a pre-determined location.
Generally, the body of the spray bottle is of aluminum material.
Typically, the working fluid is silicon oil.
Preferably, the propelling fluid is air.
Alternatively, the propelling fluid is an inert gas.
Generally, the connecting pipe connecting the propelling fluid supply pipe to the spray bottles is of Poly-Vinyl Chloride (PVC) material.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Figure 1 illustrates a schematic representation of a system for pressurizing and dispensing a cleaning fluid in accordance with an embodiment of the present invention;
Figure 2a illustrates a front view of a container used in the system for pressurizing and dispensing a cleaning liquid of Figure 1; and
Figure 2b illustrates a sectional view of the container along section line A-A of Figure 2a.
DETAILED DESCRIPTION OF INVENTION
A preferred embodiment will now be described in detail with reference to the accompanying drawings. The preferred embodiment does not limit the scope and ambit of the invention. The description provided is purely by way of example and illustration.
The present invention envisages a system for dispensing and directing a cleaning fluid under pressure towards holes configured on the spinneret used in a melt spinning process. More specifically, the cleaning fluid directed towards the holes configured on the spinneret clears any deposits on extrusion surfaces of the holes and prevents any hindrance to flow of the polymer melt through the holes, thereby

preventing any damage to the filaments that can be caused due to blockage of the holes. The system for dispensing and directing the cleaning fluid under pressure towards holes configured on the spinneret facilitates wiping and minimizing the sticking of the polymer melt over the extrusion surface of the holes configured on the spinnerets. The system for dispensing and directing the cleaning fluid under pressure utilizes a container for storing the cleaning fluid, wherein the container is constantly supplied with air that acts as a propellant for dispensing the cleaning fluid from the container, thereby eliminating use of expensive propellants that cause environmental issues and heath hazards. The container used in the system for dispensing and directing the cleaning fluid eliminates the drawbacks associated with use of conventional air-tight containers.
The system for dispensing and directing a cleaning fluid towards the holes configured on the spinneret utilizes a container that can be re-filled and used again after refilling, thereby preventing wastage of the container. The system for dispensing and directing the cleaning fluid under pressure towards holes configured on the spinneret utilizes air as a propellant that is inexpensive and environmental friendly propellant, thereby eliminating the drawbacks associated with use of conventional propellants. The system for pressurizing, dispensing and directing the cleaning fluid towards holes configured on the spinneret is simple, reliable and convenient to use.

Referring to Figure 1 of the accompanying drawings, a system 100 for dispensing and directing a cleaning fluid under pressure towards extrusion equipment, more particularly, towards blocked holes of the spinnerets used in melt spinning process is illustrated. The system 100 for dispensing and directing the cleaning fluid under pressure (hereinafter referred to as "system") includes an over-head pressurized air supply pipe 01, a primary ball valve 02, a pressure regulator 03, a plurality of
distribution lines 04a, 04b 04n branching, off from the low pressure air supply
pipe 01, a plurality of ball valves 05a, 05b, ...05n configured on the distribution
lines 04a, 04b 04n respectively. The system 100 for dispensing and directing
the cleaning fluid under pressure further includes a first set of push fit connectors 06a, 06b, 06c...06n, a plurality of spiral PVC tubes 07a,07b...07n, a plurality of refillable aerosol spray bottles 08a,08b....08n and a second set of push fit connectors 09a, 09b, 09c. .09n. The spray bottles may be containers selected from a group consisting of tins, jars, canisters.
Most of the industrial set-ups utilize pressurized air for a variety of purposes and are generally provided with an over-head low pressure air supply pipe 01. The low pressure air supply pipe 01 generally available in an industrial set-up is utilized for supplying air or gas at a desired pressure to the plurality of the refillable aerosol spray bottles 08a, 08b....08n. In accordance with an alternate embodiment of the present invention, the over-head low pressure air supply pipe 01 may supply a mixture of air and silicon oil to the refillable aerosol spray bottles 08a, 08b....08n,

thereby facilitating refilling of the aerosol spray bottles 08a, 08b....08n with silicon oil. According to still another embodiment of the present invention the over-head low pressure supply pipe 01 may be used for supplying any other gas that is produced in the. industrial setup and that can be used for propelling the silicon oil contained in the aerosol spray bottles 08a, 08b....08n. A refillable air propelled silicon oil spray system for spinneret wiping in polyester melt spinning plant as illustrated in Figure 1 uses air to pressurize and propel the silicon oil in the form of aerosol from an aerosol valve configured on each of the refillable aerosol spray bottles. More particularly, the refillable air propelled silicon oil spray system of the present invention uses air at the minimum desired pressure for propelling the product out of the container. The pressure required to be maintained inside the container for propelling the silicon oil out of the container is in the range of about 3 bar - 4.5 Bar. Although, the Refillable air propelled oil spray system of the present invention is explained with respect to silicon oil spray systems used for cleaning spinnerets, however, the Refillable air propelled oil spray system may be used for propelling other liquids used in other applications.
The air supplied by the over-head low pressure air supply pipe 01 is used for propelling the silicon oil, hereinafter referred to as "product" out of the bottles 08a, 08b....08n, thereby eliminating the need of expensive propellant. Further, the air supplied by the over-head low pressure air supply pipe 01 eliminates the need of propellant based silicon spray bottle used during spinneret wiping in polyester

melt spinning process. The primary ball valve 02 configured on the over-head low pressure air supply pipe 01 facilitates starting or stopping the air supply in the main line. The pressure regulator 03 disposed downstream of the primary ball valve 02 regulates the pressure in the air supply pipe 01, before the air is
distributed to the plurality of distribution lines 04a, 04b 04n branching off
from the low pressure air supply pipe 01. The pressure regulator 03 minimizes the consumption of the product by constantly regulating the pressure inside the air supply pipe 01. Further, each of the bottles 08a, 08b....08n further includes an orifice plug which is fitted at the bottom of dip tube for controlling the silicon oil consumption.
Each of the distribution lines 04a, 04b 04n include a corresponding ball valve
out of the plurality of ball valves 05a, 05b, ...05n, wherein the ball valve configured on a particular distribution line facilitates starting or stopping the air supply in that particular distribution line. Further, each of the distribution line 04a,
04b 04n further includes push fit connector disposed downstream of the ball
valve configured on that distribution line for connecting that distribution line to a particular spiral PVC tube out of the plurality of spiral PVC tubes 07a,07b...07n. Further, each of the spiral PVC tubes include another.push fit connector secured to an extreme end thereof for facilitating connection between the spiral PVC tube and a corresponding refillable aerosol spray bottle. More specifically, the spiral PVC tubes 07a,07b...07n connects the refillable aerosol spray bottles 08a,08b....08n

with the air supply pipe 01 via the push fit connectors 06a, 06b, 06c...06n and 09a, 09b, 09c...09n. The overhead low pressure air pipe 01 supplies the air at desired pressure to the refillable aerosol spray bottles 08a, 08b....08n via the spiral PVC tubes 07a, 07b,...07n. Although, the spiral tubes 07a, 07b...07n used for connecting the low pressure air supply pipe 01 to the reflllable aerosol spray bottles 08a, 08b....08n is of Poly-Vinyl-Chloride (PVC) material. However, the present invention is not limited to a particular material or method for configuring the spiral tubes 07a, 07b...07n. Further, since the refillable aerosol spray bottles 08a, 08b....08n are continuously supplied with pressurized air, the pressure inside the refillable aerosol spray bottles 08a, 08b....08n is always maintained at a pressure required for dispensing the silicon oil out of the aerosol spray bottles 08a, 08b....08n. Maintenance of such continuous pressures inside the aerosol spray bottles 08a, 08b....08n facilitates in maximum utilization of the silicon oil and preventing any wastage thereof.
Each of the reflllable aerosol spray bottles 08a, 08b....08n is provided with push fit connectors for connecting the refillable aerosol spray bottle with the corresponding spiral PVC tube, the PVC tube in-turn is connected to the overhead low pressure air pipe 01, accordingly, the pressure inside the refillable aerosol spray bottle is constantly maintained at a pressure required for dispensing the product out of the refillable aerosol spray bottle. The length of the PVC tubes 07a, 07b...07n and the positioning of the aerosol spray bottles 08a, 08b....08n with

respect to a spinning machine is adjusted in such a way that the respective refillable spray bottles 08a, 08b....08n can reach four different positions, more particularly, two different positions at the left side and two different positions al the right side. Further, in order to meet the operational economics of polyestei spinning section the "product" consumption is reduced by providing a mechanism for modifying the dip tube diameter and optimizing the air pressure.
Each of the aerosol spray bottles 08a, 08b....08n includes a bottle body foi holding the cleaning fluid such as silicon oil and the propelling fluid such as air. wherein the propelling fluid facilitates dispensing of the cleaning fluid from the spray bottles 08a, 08b....08n. Referring to Figure 2a and Figure 2b of the accompanying drawings, different views of the aerosol spray bottle 08a are illustrated. The aerosol spray bottle 08a may be of aluminium material. The aerosol spray bottle 08a includes a body portion 101a, an aerosol connector element 102a, an aerosol valve 103a with an actuator thereof and a non-return valve (NRV) 104a. The body portion 101a is strong enough to with-stand pressure of the silicon oil and compressed air held inside the aerosol spray bottle 08a. The body portion 101a is provided with an opening configured thereon. The aerosol connector element 102a removably engages with the opening configured on the bottle body 101a for facilitating filling and re-filling of the spray bottle 08a wh± the cleaning fluid such as silicon oil. The aerosol valve 103a with the actuatoi thereof and the non-return valve (NRV) 104a are mounted on the aerosol

connector element 102a. The aerosol valve 103a with actuator mounted on the aerosol connector element 102a facilitates dispensing of the cleaning fluid upon actuation thereof. The non-return valve 104a mounted on the aerosol connector element 102a facilitates in preventing back-flow of the "propellant" into the "propellant" supply line. Generally, the non-return valve 104a is of steel and is a poppet type non return valve and can handle air at pressure of about 2-5 bars. The non return valve can operate within temperature range of-5oC to +70°C and can offer flow rate of lOONI/min at operating conditions of 6 bar pressure and Ap = 1. The refilling of the spray bottle 08a and reuse the spray bottle 08a, result in substantial cost savings. Further, the non-return valve 104a mounted on the aerosol connector element 102a prevents backflow of the "propellant" received in the spray bottle 08a.
The aerosol spray bottle 08a is continuously supplied with pressurized air that propels the silicon oil or any other cleaning fluid stored therein out of the aerosol spray bottle 08a.
TECHNICAL ADVANTAGES AND ECONOMIC SIGNIFICANCE
Technical advantages of the present invention lie in providing a system for dispensing and directing a cleaning fluid under pressure towards blocked holes of extrusion equipment used in a melt spinning process. The system for dispensing and directing a cleaning fluid under pressure towards blocked holes of extrusion

equipment facilitates wiping of the polymer melt deposited over the extrusion surface, thereby preventing damage to fiber melt extruded through the extrusion surface. Further, the system for dispensing and directing a cleaning fluid under pressure eliminates use of environmentally harmful propellants for propelling the cleaning fluid and the drawbacks associated with use thereof. Furthermore, the system for dispensing and directing a cleaning fluid under pressure prevents wastage of the cleaning fluid. Still further, the system for dispensing and directing a cleaning fluid of the present invention is environmental friendly. Still further, the system for dispensing and directing a cleaning fluid utilizes a reusable container for holding the cleaning fluid, thereby prevents wastage of the container. Furthermore, the system for dispensing and directing a cleaning fluid of the present invention constantly maintains appropriate pressure inside the container, thereby facilitating ever-ready dispensing of the cleaning fluid. Further, the system for dispensing and directing a cleaning fluid utilizes an inexpensive and environmental friendly propellant for propelling the cleaning fluid out of a container. Further, the system for dispensing and directing a cleaning fluid may be incorporated in any current industrial set-up of a spinning plant without requiring many changes.
"Whenever a range of values is specified, a value up to 10 % below and above the lowest and highest numerical value respectively, of the specified range, is included in the scope of the invention".

The numerical values given for various physical parameters, dimensions and quantities are only approximate values and it is envisaged that the values higher or lower than the numerical value assigned to the physical parameters, dimensions and quantities fall within the scope of the invention and the claims unless there is a statement in the specification to the contrary.
While considerable emphasis has been placed herein on the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the invention. These and other changes in the preferred embodiments as well as other embodiments of the invention will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the forgoing descriptive matter to be implemented merely as illustrative of the invention and not as limitation.

We Claim:
1. A spray bottle comprising:
• a body adapted to hold working fluid and propelling fluid under pressure, wherein said propelling fluid adapted to facilitate dispensing of said working fluid from said spray bottle;
• an opening formed on said body of said spray bottle;
• a connector element removably engaging with said opening formed on said spray bottle for facilitating filling and re-filling of said spray bottle with said working fluid;
• a non-return valve (NRV) mounted on said connector element for facilitating receiving of said propelling fluid inside said body of said spray bottle and preventing back-flow of said propelling fluid received by said body of said spray bottle; and
• an aerosol valve mounted on said connector element;
• an actuator for said aerosol valve adapted to facilitate dispensing of said working fluid from said aerosol valve upon actuation thereof.
2. A system for dispensing and directing working fluid under pressure towards pre-determined locations comprising:
• a propelling fluid supply pipe; and
• a plurality of spray assemblies, each spray assembly catering a predetermined location and comprising:

o a spray bottle adapted to hold, dispense and direct working fluid under pressure towards said pre-determined location; and o a connecting pipe for connecting said spray bottle to said propelling fluid supply pipe, for supplying said propelling fluid under pressure to said spray bottle of said spray assembly.
3. The spray bottle as claimed in Claim 1, wherein said working fluid is a cleaning fluid for cleaning extrusion surfaces of extrusion equipment.
4. The system as claimed in Claim 2, further comprising a pressure regulator for regulating pressure of said propelling fluid flowing through said propelling fluid supply pipe.
5. The spray bottle as claimed in Claim 1, wherein said non-return valve is of steel.
6. The spray bottle as claimed in Claim 1, wherein said non-return valve is a poppet type non return valve.
7. The system as claimed in Claim 2, further comprising a plurality of distribution lines branching from said propelling fluid supply line, wherein each distribution line is connected to a connector element of a corresponding spray assembly via a corresponding connecting pipe for supplying said propelling fluid to said spray bottle and facilitating spraying of said working fluid at a pre-determined location.

8. The spray bottle as claimed in Claim 1, wherein said body of said spray bottle is of aluminum material.
9. The spray bottle as claimed in Claim 1, wherein said working fluid is silicon oil.
10. The spray bottle as claimed in Claim 1, wherein said propelling fluid is air.
11. The spray bottle as claimed in Claim 1, wherein said propelling fluid is an inert gas.
12. The system as claimed in Claim 2, wherein said connecting pipe connecting said propelling fluid supply pipe to said spray bottles is of Poly-Vinyl Chloride (PVC) material. '