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Title:
AN ULTRAVIOLET RESISTANT HIGH DENSITY POLYETHYLENE COMPOSITE BODY BASED LIGHT WEIGHT FIRE EXTINGUISHER
Document Type and Number:
WIPO Patent Application WO/2024/069255
Kind Code:
A1
Abstract:
The present invention provides an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) comprising of a head assembly, container body (2), a base (3), an operating lever (4), wherein the container body (2) have an aramid fibre material (5) that is woven on an inner side of the container body (2) for increasing strength of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) and the container body (2) is a density polyethylene composite body that have an ultraviolet (UV) ray resistant coating which prevents corrosion, rust and fading of colour. The head assembly is equipped with a leak proof pressure valve (6) to facilitate in installation or replacement of one or more components without discharging a pressure within said ultraviolet resistant high-density polyethylene composite body-based light weight fire extinguisher (1).

Inventors:
MITTAL DEEPALI (IN)
Application Number:
PCT/IB2023/057313
Publication Date:
April 04, 2024
Filing Date:
July 18, 2023
Export Citation:
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Assignee:
MITTAL DEEPALI (IN)
International Classes:
A62C13/76
Foreign References:
CN102128262A2011-07-20
JP2011050516A2011-03-17
CN214971386U2021-12-03
Attorney, Agent or Firm:
AMBASTHA, Lalit et al. (IN)
Download PDF:
Claims:
CLAIMS im:

1. An ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1), comprising of: a head assembly; a container body (2); a base (3); and an operating lever (4); wherein: said container body (2) has an aramid fibre material (5) woven on an inner side of said container body (2) that increases strength of said ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) and said container body (2) is a high density polyethylene composite body that has an ultraviolet (UV) ray resistant property which prevents corrosion, rust and fading of color that ensures a prolonged shelf life of said ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1); and said head assembly is equipped with a leak proof pressure valve (6) to facilitate in installation or replacement of one or more components without discharging a pressure within said ultraviolet resistant high-density polyethylene composite body-based light weight fire extinguisher (1).

2. The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) as claimed in claim 1, wherein said head assembly is fixed over said container body (2).

3. The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) as claimed in claim 1, wherein said ultraviolet (UV) ray resistant property comes from an ultraviolet (UV) ray resistant coating which includes a colored pigmentation that is preferably of red color that increases visibility, serves as an emergency signal and promotes fire safety awareness.

4. The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) as claimed in claim 3, wherein said ultraviolet (UV) ray resistant coating includes a plurality of additives like UV absorbers, stabilizers, antioxidants and hindered amine light stabilizers (HALS) to absorb or reflect the ultraviolet (UV) rays from sun or other light source, thereby preventing from penetrating the coating and reaching a underlying substrate of said ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1).

5. The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) as claimed in claim 1, wherein said aramid fibre material (5) is preferably bullet proof grade fibres.

6. The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) as claimed in claim 1, wherein said ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) prevents any potential threats to health and safety by allowing the container body (2) to burst open from one side in an event of excessive pressure, thereby safely releasing the pressure without dispersing any fragments.

7. The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) as claimed in claim 1, wherein said leak proof pressure valve (6) includes but not limited to non-return valve, one-way valve, flow control valve, gate valve, diaphragm valve, a pressure relief valve.

8. The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) as claimed in claim 1, wherein said one or more components include but not limited to a pressure gauge (7) or an alarm unit. The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) as claimed in claim 1, wherein said container body (2) is prepared through a blow moulding process that comprise steps of:

(a) melting a desired quantity of high-density polyethylene material and UV additive and forming into a parison via an extruder;

(b) clamping said parison into a blow molding machine for inflation with compressed air to conform to a shape of mold; and (c) cooling said mold obtained in step (b) for solidification and trimming the mold upon solidification for removing any excess plastic. The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) as claimed in claim 9, wherein said mold is kept under temperature ranging from 260 to 280 degrees. The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) as claimed in claim 9, wherein said desired quantity is preferably in ratio of 100kg: 4kg.

Description:
“AN ULTRAVIOLET RESISTANT HIGH DENSITY POLYETHYLENE COMPOSITE BODY BASED LIGHT WEIGHT FIRE EXTINGUISHER”

FIELD OF THE INVENTION

The present invention generally relates to the field of fire extinguishers. More particularly, the present invention pertains to an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher, which is recyclable, light weight and have anti-rust feature and pigmentation protects the fire extinguisher from the harmful ultraviolet (UV) rays of the sun, for preserving vibrant color of fire extinguisher.

BACKGROUND OF THE INVENTION

Nowadays, all the commercial establishments, homes, warehouses, public places and vehicles are required to install fire extinguishing systems to comply with the fire safety rules and regulations. Additionally, an external fire safety system is known as a fire extinguisher, which is used for extinguishing and/ or controlling minor fires in emergency situations. Commonly, a fire extinguisher consists of a hand-held cylindrical pressure vessel, which carries an agent for extinguishing the fire.

Fire extinguishers are categorized into six different categories according to the type of fire. Different categories of fire extinguisher divided according to the type of fire includes water, foam, powder, water mist and wet chemical. The water fire extinguishers are used for extinguishing class A fires, where solid combustibles such as wood, paper and textiles cause the fire. The water fire extinguishers are used in shops, offices, retail premises, schools, hotels, warehouses and domestic premises.

Generally, the fire extinguishers are metal cylinders, which are filled with water and/or chemical material including the extinguishing agent. Thereafter, they are pressurized with an expellant gas such as dry nitrogen or dry air, within the cylinder of fire extinguishers. The valve and the related components of the fire extinguishers keep the compressed gas from escaping until operated. However, over a period of time, just like an old car tire, a fire extinguisher also develops a slow leak, which results in releasing of the gas. This cause depressurization of fire extinguisher to occur. This depressurization process occurs due to a leaky and/ or damaged valve component such as an O-ring seal and/ or valve stem. Moreover, damage to the cylinder itself causes slow leaks. Although, a leaking and/ or depressurized fire extinguisher is not dangerous in itself, however a depressurized fire extinguisher is much more severe as a lack of pressure causes a fire extinguisher to be inoperable.

When the fire extinguishers are stored too close to stoves, fireplaces and/ or power generators, they are exposed to a lot of heat. The recommended temperature ranges for storing fire extinguishers is between 40 and 120 degrees Fahrenheit and when the fire extinguishers are left exposed to high temperatures, the valve, tank and/ or hose are damaged easily. When a fire extinguisher explodes, it makes a large and loud burst and various parts of the extinguisher fly off, which hits if someone is nearby, which causes a serious health hazard.

During the explosion, the force generated can cause various parts of the extinguisher, including the cylinder, valve, and other components, to forcefully detach and become projectiles. These flying fragments can travel at high speeds and can pose a significant risk to anyone in the vicinity. If someone is hit by these fragments, it can result in serious injuries, including cuts, bruises, lacerations, or even more severe harm depending on the force and trajectory of the fragments.

The serious health hazard arises from the potential impact of these flying parts on individuals nearby. The forceful impact can cause severe bodily harm, leading to immediate injuries that may require medical attention. The fragments can strike sensitive areas of the body, such as the head, face, or vital organs, resulting in concussions, fractures, internal injuries, or other life-threatening conditions. To prevent the risk of explosion and the associated health hazards, it is essential to handle and maintain fire extinguishers properly. Regular inspections, maintenance, and adherence to safety guidelines are crucial to identify and address any potential issues that may lead to an explosion. Additionally, ensuring that fire extinguishers are not exposed to excessive heat, corrosive materials, or other damaging conditions can help mitigate the risk of structural failure and explosion. In conclusion, when a fire extinguisher explodes, the forceful burst and flying fragments pose a significant danger to individuals nearby, potentially causing serious injuries and health hazards. Proper handling, maintenance, and adherence to safety protocols are essential to minimize the risk of explosion and ensure the safe operation of fire extinguishers.

Further, the choice of the color red for fire extinguishers is attributed to various factors. First and foremost, red is selected due to its exceptional visibility, especially in critical situations. The vibrant and bold nature of the color red enables fire extinguishers to stand out prominently, effectively capturing the attention of individuals during emergencies, even in environments with reduced visibility or obscured by smoke. Moreover, red is widely associated with fire and danger, creating a strong psychological impact on people. The color red serves as a visual cue, instantly signaling the presence of a fire extinguisher and reminding individuals of its purpose and importance in combating fires.

Additionally, it is observed that the red color of the currently available fire extinguishers fades under sunlight. The ultraviolet rays from the sun have the ability to break down the chemical bonds present in the pigments that give color to the fire extinguisher. This process, known as photo degradation, leads to the gradual loss of color intensity and vibrancy over time.

The red color or red pigments are particularly susceptible to UV-induced fading because they absorb shorter- wavelength light, including UV rays. As the pigments absorb UV radiation, the energy causes the chemical structure of the pigment molecules to change, resulting in a degradation of color. This fading effect becomes more pronounced with increased exposure to sunlight.

Additionally, other environmental factors such as heat and humidity can accelerate the fading process. Over time, the combination of UV radiation and environmental conditions can cause the red color of a fire extinguisher to gradually fade, making it less visually prominent and potentially less noticeable during emergencies.

US20080035354A1 discloses a super absorbent polymeric material which when added to water enhances the fire extinguishing properties of the water. In particular, a pre -measured quantity of the polymeric material is added to a conventional water based canister capable of holding 2.5 gallons of pressurized water. However, the main drawback of this invention is the use of a water based fire extinguisher as the water based fire extinguishers uses water as a primary fire extinguishing agent and since water is an electrical conductor, therefore water makes the fire extinguisher of this invention unsuitable if the fire involves an electrical supply and it cannot be used near live electrical equipment.

US20040216903A1 discloses improvements to a fire extinguisher includes a tank and a gas generator breech connected to the tank. The gas generator breech is provided with a hermetically sealed gas generator cartridge. The hermetically sealed gas generator cartridge avoids the need to have a release poppet or burst shims on the gas generator breech. The enclosed space that contains combustion gas pressure is provided by the gas generator cartridge itself and not the gas generator breech. The gas generator cartridge is made from a container that can be the precursor to a beverage can used for carbonated beverages. The beverage can may come in a thickness and material of construction that makes it a suitable, cost-effective container for the gas generator cartridge. However, the main drawback of this invention is the use of a hermetically sealed gas generator as the hermetically sealed gas generators are not easily maintained as the welded joints are broken in case of repairing, separate vacuum pump is required for evacuation of fire extinguishing agents and as the hermetically sealed gas generator are difficult to maintain therefore the hermetically sealed gas generator are replaced with new one instead of repairing the old ones, which makes the maintenance costly.

W02013105110A2 discloses an improved fire extinguisher for extinguishing all kinds of fire at early stage preventing them to expand and cause high damages. The proposed fire extinguisher extinguishes fire without affecting the properties or damaging the material involved in the fire. However, this invention fails to provide protection from sunlight, bursting in an efficient manner.

Significant advancements have been made in the realm of fire extinguishers to address a range of challenges, including color fading, weight, pressure, bursting, and the availability of separate fire extinguishers that cater to specific concerns. Nevertheless, the current market lacks a singular fire extinguisher solution that comprehensively resolves the issues associated with existing fire extinguisher assemblies. These issues encompass not only color fading but also corrosion, leakage, excessive weight, bursting, and splashing. While individual developments have addressed specific challenges related to fire extinguishers, there remains a need for a comprehensive solution that effectively tackles color fading, corrosion, and leakage, excessive weight, bursting, and splashing.

Therefore, due to aforementioned drawbacks, there is a need of a fire extinguisher that alleviates the problems related to the existing fire extinguisher assemblies such as corrosion, leakage, bursting and splashing.

OBJECT OF THE INVENTION

The main object of the present invention is to provide an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher in which pigmentation protects the fire extinguisher from the harmful ultraviolet (UV) rays of the sun.

Another object of the present invention is to provide an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher which is light weight, compact in size, easy to operate and cost friendly.

Yet another object of the present invention is to provide a high density polyethylene (HDPE) based composite body fire extinguisher, which is completely recyclable and rust and corrosion free.

Yet another object of the present invention is to provide a high density polyethylene (HDPE) based composite body fire extinguisher, in which no color shade fading and cracking are observed.

Still another object of the present invention is to provide an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher which is safe for operation as cracks occur on the body of the fire extinguisher instead of bursting, which occurs in metal fire extinguishing systems. SUMMARY OF THE INVENTION

The present invention relates to an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher that exhibits excellent resistance to ultraviolet (UV) radiation incorporates materials that are inherently resistant to rust and corrosion, contributing to its durability and longevity. Furthermore, the inclusion of pigmentation within the composite material serves as a protective shield, safeguarding the fire extinguisher from the potentially damaging effects of UV rays emitted by the sun.

In an embodiment, the present invention provides an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher comprising of a head assembly, a container body, a base, an operating lever, wherein the container body have an aramid fibre material that is woven on an inner side of the container body that increases strength of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher and the container body is a density polyethylene composite body that has an ultraviolet (UV) ray resistant property which prevents corrosion, rust and fading of color that ensures a prolonged shelf life of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher. The head assembly is equipped with a leak proof pressure valve to maintain a pressure integrity during a refilling process or any other fitting operation, thereby preventing any decrease in pressure.

The resistant high density polyethylene composite body based light weight fire extinguisher comprising of fire extinguisher container body having an aramid fiber material that is woven on the inner side of body for increasing the strength, wherein the fire extinguisher container body is a density polyethylene composite body that have an ultraviolet (UV) ray resistant coating which prevents corrosion, rust and fading of color that further increases the shelf life of the fire extinguisher. The ultraviolet (UV) ray resistant coating includes an UV additive along with a colored pigmentation. The aramid fibre material is preferably bullet proof grade fibers.

In another embodiment, the present invention provides an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher wherein the container body is prepared through a blow moulding process that comprise steps of a) melting a desired quantity of high-density polyethylene material and UV additive and forming into a parison via an extruder, b) clamping the parison into a blow molding machine for inflation with compressed air to conform to a shape of mold; and c) cooling the mold obtained in step (b) for solidification and trimming the mold upon solidification for removing any excess plastic. The mold is kept under temperature ranging from 260 to 280 degrees. The desired quantity is preferably in ratio of 100kg: 4kg.

In another embodiment, the present invention provides an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher which is safe for operation as cracks occur on the body of the container of the fire extinguisher instead of blasting, which occurs in conventional metal fire extinguishing systems.

The above objects and advantages of the present invention will become apparent from the hereinafter set forth brief description of the drawings, detailed description of the invention, and claims appended herewith.

BRIEF DESCRIPTION OF THE DRAWINGS

An understanding of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher of the present invention may be obtained by reference to the following drawing:

Figure 1 is a sectional view of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The present invention will now be described hereinafter with reference to the accompanying drawings in which a preferred embodiment of the invention is shown. This invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiment set forth herein. Rather, the embodiment is provided so that this disclosure will be thorough, and will fully convey the scope of the invention to those skilled in the art.

Many aspects of the invention can be better understood with references made to the drawings below. The components in the drawings are not necessarily drawn to scale. Instead, emphasis is placed upon clearly illustrating the components of the present invention. Moreover, like reference numerals designate corresponding parts through the several views in the drawings. Before explaining at least one embodiment of the invention, it is to be understood that the embodiments of the invention are not limited in their application to the details of construction and to the arrangement of the components set forth in the following description or illustrated in the drawings. The embodiments of the invention are capable of being practiced and carried out in various ways. In addition, the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.

The present invention relates to an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher that exhibits excellent resistance to ultraviolet (UV) radiation incorporates materials that are inherently resistant to rust and corrosion, contributing to its durability and longevity. Furthermore, the inclusion of pigmentation within the composite material serves as a protective shield, safeguarding the fire extinguisher from the potentially damaging effects of UV rays emitted by the sun.

In an embodiment, the present invention provides an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher comprising of a head assembly, a container body, a base, an operating lever, wherein the container body have an aramid fibre material that is woven on an inner side of the container body that increasing strength of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher and the container body is a density polyethylene composite body that have an ultraviolet (UV) ray resistant property which prevents corrosion, rust and fading of color that ensures a prolonged shelf life of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher. The head assembly is equipped with a leak proof pressure valve to maintain a pressure integrity during a refilling process or any other fitting operation, thereby preventing any decrease in pressure. Figure 1 is sectional view of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher according to an embodiment of the present invention. The present invention provides an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) comprising of a container body (2), a base (3), an operating lever (4), wherein the container body (2) have an aramid fibre material (5) that is woven on an inner side of the container body (2) that increasing strength of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) and the container body (2) is a density polyethylene composite body that have an ultraviolet (UV) ray resistant property which prevents corrosion, rust and fading of color that ensures a prolonged shelflife of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1). The ultraviolet (UV) ray resistant property comes from a ultraviolet (UV) ray resistant coating that includes an UV additive along with a colored pigmentation. The aramid fibre material (5) is preferably bullet proof grade fibres. The head assembly is equipped with a leak proof pressure valve (6) to maintain a pressure integrity during a refilling process or any other fitting operation, thereby preventing any decrease in pressure and the head assembly is fixed over said container body (2).

Further, the container body (2) is prepared through a blow moulding process that comprise steps of a) melting a desired quantity of high-density polyethylene material and UV additive and forming into a parison via an extruder, b) clamping the parison into a blow molding machine for inflation with compressed air to conform to a shape of mold; and c) cooling the mold obtained in step (b) for solidification and trimming the mold upon solidification for removing any excess plastic. The mold is kept under temperature ranging from 260 to 280 degrees. The desired quantity is preferably in ratio of 100kg: 4kg.

The ultraviolet (UV) ray resistant coating includes an UV additive along with a colored pigmentation. The UV additive include but not limited to UV absorbers, stabilizers, antioxidants and hindered amine light stabilizers (HATS) to absorb or reflect the ultraviolet (UV) rays from sun or other light source, thereby preventing from penetrating the coating and reaching a underlying substrate of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1). The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) ensures the prevention of potential health and safety hazards by allowing the container body (2) to burst open from one side in the event of excessive pressure, thereby safely releasing the pressure without dispersing any fragments that cause harm.

The leak proof pressure valve (6) include but not limited to non-return valve, one-way valve, flow control valve, gate valve, diaphragm valve, a pressure relief valve. The leak proof pressure valve (6) facilitates in installation or replacement of one or more components, including a pressure gauge (7) or an alarm unit, without discharging the pressure within the ultraviolet resistant high-density polyethylene composite body-based light weight fire extinguisher (1).

EXAMPLE 1

Manufacturing method of ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher

The container body (2) is manufactured using a blow molding process, which involves several steps explained below.

Firstly, a desired quantity of high-density polyethylene material and UV additive is melted. The high-density polyethylene material provides the structural properties of the container body (2), while the UV additive imparts ultraviolet resistance. The materials are melted together, typically at a specific temperature range suitable for their melting point.

Next, the melted mixture is formed into a parison using an extruder. The parison is a hollow tube-shaped preform that resembles the final shape of the container body (2). The extruder applies pressure to force the molten mixture through a die, shaping it into the desired parison form.

The parison is clamped into a blow molding machine, which consists of a mold with two halves. The mold is designed to have the desired shape of the container body (2). The parison is securely held within the mold. Compressed air is then introduced into the parison, causing it to expand and conform to the shape of the mold. The pressure from the compressed air forces the molten material to take the form of the mold, resulting in the creation of a hollow container body (2).

The mold is cooled to facilitate solidification of the polyethylene material. Cooling methods such as water circulation within the mold help to lower the temperature and solidify the material. As the material cools, it solidifies and retains the shape of the mold. Once the material is fully solidified, the mold is opened, and any excess plastic or flash is trimmed or removed. This step ensures a clean and finished container body (2).

Throughout the blow molding process, the mold is kept at a specific temperature ranging from 260 to 280 degrees. This temperature range allows the molten material to flow properly, promotes good adhesion, and facilitates efficient solidification and cooling.

The desired quantity of high-density polyethylene material to UV additive is preferably in a ratio of 100kg to 4kg, which ensures that the appropriate amount of UV additive is mixed with the polyethylene material, providing the necessary ultraviolet resistance properties while maintaining the desired characteristics and performance of the container body (2).

Furthermore, the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) include a colored pigmentation in the UV ray resistant coating and to provide robust UV resistance, the UV ray resistant coating comprise a variety of additives such as UV absorbers, stabilizers, antioxidants, and hindered amine light stabilizers (HATS). The additives work together to absorb or reflect the UV rays from the sun or other light sources, preventing them from penetrating the coating and reaching the underlying substrate of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1).

The aramid fiber material (5) used in the container body (2) is preferably made of bullet proof grade fibers. The bullet proof grade fibers possess strength and heat resistance, adding an extra layer of durability to the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1). Additionally, the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) is equipped with a leak-proof pressure valve (6) on the head assembly that maintains the pressure integrity during the refilling process and the leak proof pressure valve (6) ensures that there is no decrease in pressure, thereby optimizing the performance and effectiveness of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1). The leak-proof pressure valve (6) include a nonreturn valve, one-way valve, flow control valve, gate valve, diaphragm valve, or a pressure relief valve. The specific type of valve varies on the basis of design and requirements of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1). Further, the leak proof pressure valve (6) facilitates in installation or replacement of one or more components, including a pressure gauge (7) or an alarm unit, without discharging the pressure within the ultraviolet resistant high-density polyethylene composite body-based light weight fire extinguisher (1).

The ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) prevents any potential threats to health and safety by allowing the container body (2) to burst open from one side in an event of excessive pressure, thereby safely releasing the pressure without dispersing any fragments, thereby offers a distinct advantage over traditional fire extinguishers in terms of its structural integrity and safety. Unlike conventional extinguishers that are prone to blast during explosive incidents.

By incorporating this cracking mechanism, the present invention prioritizes the safety of users and bystanders. The controlled release of pressure through cracking mitigates the likelihood of severe bodily harm, as the force is dissipated more evenly and in a controlled direction. This feature significantly reduces the potential for serious injuries caused by flying debris or high-velocity fragments, providing a safer environment during emergency situations.

EXAMPLE 2

Analysis on Ultraviolet Protection The present invention provides an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher which is coated with ultraviolet (UV) coating to protect the red color of the fire extinguisher.

The UV coating applied to the surface of the fire extinguisher plays a crucial role in protecting the red colour from fading due to sunlight exposure. The UV coating acts as a barrier, preventing the harmful ultraviolet (UV) rays from directly reaching the underlying pigments that give the fire extinguisher its red colour.

The UV rays have shorter wavelengths and higher energy compared to visible light. When these rays come into contact with the pigments, they cause the chemical bonds within the pigments to break down, leading to colour fading over time. However, the UV coating acts as a shield by absorbing and reflecting the UV radiation before it penetrate the pigments. This protective layer effectively reduces the exposure of the red pigments to the damaging effects of UV rays.

By preventing UV rays from reaching the pigments, the UV coating helps maintain the vibrant red colour of the fire extinguisher for a longer period and slows down the process of photo degradation, which is responsible for colour fading, and helps preserve the visual prominence and identification of the fire extinguisher during emergencies.

The UV coating, through its UV-blocking properties, provides an additional layer of protection to the red colour, ensuring that the fire extinguisher remains highly visible and easily recognizable, even when exposed to sunlight for extended periods.

The UV coat applied to ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher include a combination of specific materials that effectively protect the fire extinguisher's coating. The material used herein refers to UV absorber, UV stabilizers, and hindered amine light stabilizers.

The UV absorbers are chemical compounds present in the UV coat that have the ability to absorb ultraviolet (UV) radiation. By absorbing UV rays, the UV absorber prevent the harmful radiation from reaching the underlying pigments of the present invention, which helps to minimize color fading and degradation caused by UV exposure. The UV coat also incorporates UV stabilizers, which are compounds designed to enhance the resistance of materials to UV degradation. These stabilizers work by inhibiting the degradation processes triggered by UV radiation and help maintain the structural integrity and visual appearance of the coating over time.

The hindered amine light stabilizers are a specific type of UV stabilizers used in the UV coat, which function by scavenging and neutralizing free radicals generated by UV exposure. A plurality of free radicals are highly reactive molecules that can cause damage to the coating, leading to colour fading and degradation. By neutralizing these free radicals, hindered amine light stabilizers provide long-term protection against UV-induced degradation.

In the combined form, the UV absorbers, UV stabilizers, and hindered amine light stabilizers present in the UV coat work synergistically to shield coating from the detrimental effects of UV radiation, which help maintain the vibrant colour and integrity of the coating, ensuring that the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher remains highly visible and effective during emergencies.

EXAMPLE 3

Analysis on pressure maintenance of ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher

The present invention provides the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) is equipped with a leak proof pressure valve (6) to maintain a pressure integrity during a refilling process or any other fitting operation, thereby preventing any decrease in pressure.

The leak proof pressure valve (6) serves a crucial role in maintaining pressure integrity during various operations, including the refilling process and other fitting procedures. By preventing any decrease in pressure, the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) remains fully functional and ready for use at all time, thereby enabling ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) to deliver the necessary firefighting agent with the appropriate force and effectiveness. This feature guarantees that the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) perform optimally when called upon in emergency situations.

The leak-proof pressure valve (6) incorporated in the ultraviolet resistant high-density polyethylene composite body-based light weight fire extinguisher (1) provides a crucial function by enabling the installation or replacement of various components, such as a pressure gauge (7) or an alarm unit, without the need to release or discharge the pressure contained within the fire extinguisher and this also ensures that the pressure remains intact within the ultraviolet resistant high-density polyethylene composite body-based light weight fire extinguisher (1), maintaining the effectiveness and readiness of the fire extinguisher. The ultraviolet resistant high-density polyethylene composite body-based light weight fire extinguisher (1) allows the convenient installation or replacement of components without pressure loss and continue to operate optimally, ensuring reliability and minimizing disruptions during maintenance or component upgrades.

EXAMPLE 4

Analysis on cracking or bursting of the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher

The present invention provides an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) in which the container body is made up of high- density polyethylene material for providing strength and durability.

The high-density polyethylene material is a thermoplastic material that possesses resistance to impact, stress, and pressure and has a high tensile strength and withstand significant internal pressures without deforming or rupturing.

When the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) is pressurized, the container body effectively encompass the compressed extinguishing agent without bursting or experiencing structural failure. This is particularly important in cases where the pressure inside the fire extinguisher increases due to various factors, such as temperature changes or rapid discharge.

The use of high density polyethylene in the construction provides a robust and reliable containment vessel for the extinguishing agent and helps ensure that the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher (1) remains intact and functional, even in demanding conditions.

The primary objective of using high density polyethylene is to ensure the utmost safety and protection against potential threats to health and well-being. In the event of excessive pressure within the fire extinguisher, the container body (2) is intentionally engineered to burst open from one side, enabling the controlled release of pressure in a manner that eliminates the dispersion of any fragments. By allowing the container body (2) to burst open in a controlled manner, rather than rupturing or fragmenting unpredictably, the fire extinguisher mitigates the risk of harm to individuals nearby and this feature ensures that the pressure is released safely and efficiently, without the creation of dangerous fragments that could potentially cause injuries or pose hazards.

The controlled burst of the container body (2) acts as a safeguard, preventing the uncontrolled release of pressure and associated risks and provides a reliable mechanism to effectively discharge the accumulated pressure, maintaining the overall integrity and safety. Hence, the present invention addresses the critical need to prevent any potential threats to health and safety by carefully managing the release of pressure, safeguarding individuals and surrounding environments from harm during emergency situations.

Moreover, high density polyethylene offers advantages over traditional metal fire extinguishers exhibits visible signs of cracking, allowing users or operator to identify potential issues or damage. The visible indication prompts the need for inspection, maintenance, or replacement, ensuring that the high density polyethylene offers advantages over traditional metal fire extinguishers remains in optimal working condition and ready for future use.

Therefore, the present invention provides an ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher that is light weight and compact extinguisher addresses multiple issues in one single unit, including color fading, pressure leaks, corrosion, and bursting. The reinforced aramid fiber material enhances its strength, while the leak-proof pressure valve ensures reliability during use. Additionally, the ultraviolet resistant high density polyethylene composite body based light weight fire extinguisher costfriendly, recyclable, and resistant to rust and corrosion.

Many modifications and other embodiments of the invention set forth herein will readily occur to one skilled in the art to which the invention pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the invention is not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

The foregoing description of embodiments of the invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed, and modifications and variations are possible in light of the above teachings or may be acquired from practice of the invention. The embodiments were chosen and described in order to explain the principals of the invention and its practical application to enable one skilled in the art to utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated.