3. PREAMBLE TO THE DESCRIPTION:

A portable low weight eutectic appliance and a method for facilitating a low temperature environment

4. DESCRIPTION:

Technical Field of the Invention

[1] The present invention generally relates to a field of freezing appliance manufacturing. More particularly the present invention is related to a portable low weight eutectic appliance.

Background of the Invention

[2] Generally, a refrigerator is an electrical appliance used for maintaining the freshness of the stored products for a long time by managing the temperature to a required level. A refrigerator is provided with cold storage space for storing the products. The position of the freezing room in the refrigerator includes above the cold room, below the cold room, next to the cold room and the like.

[3] Generally, these conventional refrigerators are not portable and they are suitable for only households. The excess weights associated with these conventional kinds of refrigerators do not facilitate the portability. To overcome the problems associated with the conventional refrigerators, chest freezers came into existence to support the freezing applications. Generally the chest freezers are not portable and provide a convenient means for storing and chilling food items. Further portable chest freezers can be readily installed in various mobile vehicles such as campers, vans, trailers, mobile or motor homes, and carts. The outer cabinet of the conventional chest freezers is made of metal. This metal tank is used for storing the solution and which gets damaged due to the corrosion resulting in a reduced life time of the freezer.

[4] The conventional chest freezers suffer with certain limitations. Due to the excess weights associated with the conventional chest freezers moving and installing these kinds of chest freezers and using them for mobile applications is a cumbersome task. Further the heavy weight of the chest freezers decreases the portability, mobility and lifetime.

[5] Hence there exists a need for a system and method for providing a portable low weight eutectic appliance thereby enhancing the mobility and life time of the eutectic appliance.

Brief Summary of the Invention

[6] The following presents a simplified summary of the disclosure in order to provide a basic understanding to the reader. This summary is not an extensive overview of the disclosure and it does not identify key/critical elements of the invention or delineate the scope of the invention. Its sole purpose is to present some concepts disclosed herein in a simplified form as a prelude to the more detailed description that is presented later.

[7] A principal objective of the present invention is to provide a portable low weight eutectic appliance.

[8] An objective of the present invention is to provide a low weight exterior plastic receptacle for a portable low weight eutectic appliance.

[9] Further objective of the present invention is to provide a plurality of eutectic pouches for an effective absorption of heat.

[10] Still further objective of the present invention is to provide a non corrosive interior tank for improving the lifetime of the eutectic appliance.

[11] A portable low weight eutectic appliance and a method for facilitating a low temperature environment are disclosed. According to a first aspect of a present invention, a portable low weight eutectic appliance for facilitating a low temperature environment includes an insulated main housing including an interior receptacle for accommodating frozen products, at least one cavity opening for facilitating the accommodation of frozen products in the interior receptacle, at least one lid releasably engaged with the insulated main housing at one end of the cavity for closing the at least one cavity opening.

[12] According to the first aspect of the present invention, the portable low weight eutectic appliance includes the insulated main housing further including a compartment for accommodating a plurality of electrical devices enabled to facilitate the low temperature environment The insulated main housing further consists a plurality of perforations for a secure holding of the at least one lid in a hermetically sealed configuration with the insulated main housing. A high conductivity evaporator tube is positioned around the interior receptacle for circulating a refrigerant around the interior receptacle for an effective absorption of heat.

[13] According to the first aspect of the present invention, the portable low weight eutectic appliance includes an insulated main housing including an exterior plastic receptacle with a plurality of reinforcements for enabling a secure insertion of the interior receptacle. The exterior plastic receptacle reduces weight of the insulated main housing enabling the portability.

[14] According to the first aspect of the present invention, the portable low weight eutectic appliance includes an insulated main housing consisting a eutectic liquid disposed between the interior receptacle and the exterior plastic receptacle, whereby the eutectic liquid enables to attain a predetermined freezing point.

[15] According to a second aspect of the present invention, the portable low weight appliance for facilitating a low temperature environment further includes a plurality of eutectic solution pouches attached along the outer surface of the interior receptacle, whereby the plurality of eutectic solution pouches enable to attain a predetermined freezing point. The plurality of eutectic solution pouches attached to the interior receptacle by utilizing a masking tape. The plurality of eutectic solution pouches attached on a high heat conductivity material wrapped around the interior receptacle.

[16] According to the second aspect, the portable low weight appliance for facilitating a low temperature environment further includes at least one protective layer surrounding the plurality of eutectic solution pouches for preventing a leakage of a eutectic solution from the plurality of eutectic solution pouches.

[17] According to a third aspect of a present invention, a method adapted for providing a low temperature environment in a portable low weight eutectic appliance is disclosed. The method adapted for providing a low temperature environment with a in a portable low weight eutectic appliance includes accommodating an exterior plastic receptacle in an insulated main housing and a step of strengthening the exterior plastic receptacle by providing a plurality of reinforcements., a step of releasable engaging a lid with the insulated main housing at one end of the cavity for closing the at least one cavity opening and a step of securely holding at least one lid in a hermetically sealed configuration with the insulated main housing for closing the at least one cavity opening.

[18] According to the third aspect of the present invention, the method adapted for providing a low temperature environment in a portable low weight eutectic appliance includes enabling a secure insertion of an interior receptacle in the exterior receptacle for accommodating frozen products, a step of positioning a high conductivity evaporator tube around the interior receptacle for circulating a refrigerant around the interior receptacle for an effective absorption of heat and a step of facilitating the accommodation of frozen products in the interior receptacle through at least one cavity opening.

[19] According to the third aspect of the present invention, the method adapted for providing a low temperature environment in a portable low weight eutectic appliance includes disposing a eutectic liquid between the interior receptacle and the exterior plastic receptacle to attain a predetermined freezing point.

Brief Description of the Drawings

[20] Other objects and advantages of the present invention will become apparent lo those skilled in the art upon reading the following detailed description of the preferred embodiments, in conjunction with the accompanying drawings, wherein like reference numerals have been used to designate like elements, and wherein:

[21] FIG.1 is a diagram depicting an overview of an interior receptacle.

[22] FIG.2 is a diagram depicting an over view of an exterior receptacle.

[23] FIG.3 is a diagram depicting an overview of a main housing accommodating an interior receptacle and an exterior receptacle.

[24] FIG.4 is a diagram depicting an overview of an eutectic appliance.

[25] FIG.5 is a diagram depicting an overview of a completely insulated main housing assembly.

[26] FIG. 6 is a diagram depicting an overview of an interior receptacle provided with a top mask.

[27] FIG. 7 is a diagram depicting an overview of an interior receptacle surrounded with multiple eutectic solution pouches.

[28] FIG. 8 is a diagram depicting an overview of an interior receptacle provided with a protective layer on the multiple eutectic solution pouches.

Detailed Description of the Invention

[29] It is to be understood that the present disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The present disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.

[30] The use of "including", or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item. Further, the use of terms "first", "second", and "third", and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

[31] Exemplary embodiments of the present invention are directed towards a portable low weight eutectic appliance and a method for facilitating a low temperature environment. According to a first aspect of a present invention, a portable low weight eutectic appliance for facilitating a low temperature environment includes an insulated main housing including an interior receptacle for accommodating frozen products, at least one cavity opening for facilitating the accommodation of frozen products in the interior receptacle, at least one lid releasably engaged with the insulated main housing at one end of the cavity for closing the at least one cavity opening. The insulated main housing further includes a compartment for accommodating a plurality of electrical devices enabled to facilitate the low temperature environment. The insulated main housing further consists a plurality of perforations for a secure holding of the at least one lid in a hermetically sealed configuration with the insulated main housing. A high conductivity evaporator tube is positioned around the interior receptacle for circulating a refrigerant around the interior receptacle for an effective absorption of heat.

[32] According to the first aspect of the present invention, the portable low weight eutectic appliance includes an insulated main housing including an exterior plastic receptacle with a plurality of reinforcements for enabling a secure insertion of the interior receptacle. The exterior plastic receptacle reduces weight of the insulated main housing enabling the portability.

[33] According to the first aspect of the present invention, the portable low weight eutectic appliance includes an insulated main housing consisting a eutectic liquid disposed between the interior receptacle and the exterior plastic receptacle, whereby the eutectic liquid enables to attain a predetermined freezing point.

[34] According to a second aspect of the present invention, the portable low weight appliance for facilitating a low temperature environment further includes a plurality of eutectic solution pouches attached along the outer surface of the interior receptacle, whereby the plurality of eutectic solution pouches enable to attain a predetermined freezing point. The plurality of eutectic solution pouches attached to the interior receptacle by utilizing a masking tape. The plurality of eutectic solution pouches attached on a high heat conductivity material wrapped around the interior receptacle.

[35] According to the second aspect, the portable low weight appliance for facilitating a low temperature environment further includes at least one protective layer surrounding the plurality of eutectic solution pouches for preventing a leakage of a eutectic solution from the plurality of eutectic solution pouches.

[36] According to a third aspect of a present invention, a method adapted for providing a low temperature environment in a portable low weight eutectic appliance is disclosed. The method adapted for providing a low temperature environment in a portable low weight eutectic appliance includes accommodating an exterior plastic receptacle in an insulated main housing and a step of strengthening the exterior plastic receptacle by providing a plurality of reinforcements, a step of releasable engaging a lid with the insulated main housing at one end of the cavity for closing the at least one cavity opening and a step of securely holding at least one lid in a hermetically sealed configuration with the insulated main housing for closing the at least one cavity opening.

[37] According to the third aspect of the present invention, the method adapted for providing a low temperature environment in a portable low weight eutectic appliance includes enabling a secure insertion of an interior receptacle in the exterior receptacle for accommodating frozen products, a step of positioning a high conductivity evaporator tube around the interior receptacle for circulating a refrigerant around the interior receptacle for an effective absorption of heat and a step of facilitating the accommodation of frozen products in the interior receptacle through at least one cavity opening.

[38] According to the third aspect of the present invention, the method adapted for providing a low temperature environment in a portable low weight eutectic appliance includes disposing a eutectic liquid between the interior receptacle and the exterior plastic receptacle to attain a predetermined freezing point.

[39] Referring to FIG.1 is a diagram 100 depicting an overview of an interior receptacle. According to a non limiting exemplary embodiment of the present invention, the overview of the interior receptacle depicts an interior receptacle 102 for accommodating frozen products, a high conductivity evaporator tube 104 wrapped around the interior receptacle 102 for circulating a refrigerant around a complete surface of the interior receptacle 102, a cavity opening 106 positioned on the interior receptacle 102 for enabling the accommodation of frozen products into the interior receptacle 102.

[40] According to a non limiting exemplary embodiment of the present invention, the interior receptacle 102 serves as a storage area for accommodating the multiple frozen products. The multiple frozen products include ice creams, beverages, chocolates and the like. The high conductivity evaporator tube 104 is made with a high heat conductivity material wrapped around the interior receptacle 102 includes the refrigerant for absorbing the heat present in the storage area. The proper wrapping of the high conductivity evaporator tube 104 around the interior receptacle 102, with decent pitch values ensures the quality of heat absorption in the storage area. The interior receptacle 102 is made with a strong material to hold the weight of the high conductivity evaporator tube 104 and prohibits the interior receptacle 102 from deforming. The interior receptacle 102 consist low corrosion properties to improve the life time of the eutectic appliance and the materials of the interior receptacle 102 includes a galvanized iron (01) sheet with powder coating, a pre coated galvanized iron (GI) sheet and the like.

[41] Referring to FIG.2 is a diagram 200 depicting an overview of the exterior plastic receptacle. According to a non limiting exemplary embodiment of the present invention, the overview of the exterior plastic receptacle depicts an exterior plastic receptacle 202 provided with multiple reinforcements 204 for strengthening the exterior plastic receptacle 202. The exterior plastic receptacle 202 is made with a low weight non corrosive material to improve the life time of the eutectic appliance. The material of the exterior plastic receptacle 202 reduces the weight of the eutectic appliance to improve the portability, mobility and life time of the eutectic appliance.

[42] Referring to FIG. 3 is a diagram 300 depicting an over view of a main housing accommodating an interior receptacle and an exterior receptacle. According to an exemplary embodiment of the present invention, the over view of the main housing accommodating the interior receptacle and the exterior receptacle depicts the main housing 306, the exterior plastic receptacle 302 accommodated in the main housing 306, the interior receptacle 304 securely inserted into the exterior plastic receptacle 302 for accommodating the frozen products, a cavity opening 308 positioned on the interior receptacle 304 for enabling the accommodation of the frozen products. A eutectic solution is disposed between the interior receptacle 304 and the exterior receptacle 302. The eutectic solution includes a low freezing point which is used to attain the required freezing point. The cavity opening 308 is surrounded with the main housing 306 for enabling the lid to completely close the main housing 306.

[43] Referring to FIG.4 is a diagram 400 depicting an over view of an eutectic appliance. According to a non limiting exemplary embodiment of the present invention, the over view of the eutectic appliance includes an insulated main housing 402, a cavity opening 406 surrounded by the insulated main housing 402 and multiple perforations 404 positioned on the insulated main housing 402 to fasten multiple hinges for engaging the lid with the insulated main housing 402 in a releasable manner. The multiple perforations 404 enable the secure fastening of the lid with the insulated main housing 402. A compartment 408 attached to the insulated main housing 402 accommodates the multiple electrical devices to enable the functioning of the eutectic appliance. The multiple electrical appliances include a battery, a compressor, a motor and the like. The cavity opening 406 positioned on the insulated main housing 402 facilitates a user to accommodate the multiple frozen products.

[44] Referring to FIG. 5 is a diagram 500 depicting an overview of a completely insulated main housing assembly. According to an exemplary embodiment of the present invention, the overview of an eutectic appliance depicts a completely insulated main housing assembly 502, a cavity opening 506 for enabling the accommodation of the frozen products, a lid 504 covering the cavity opening 506 of the insulated main housing 502 in a hermetically sealed manner, a locking provision 508 for enabling the secure fastening of the lid 504 with the completely insulated main housing assembly 502, a compartment covering lid with locking provision 510.

[45] In accordance with a non limiting exemplary embodiment of the present invention, the completely insulated main housing assembly 502 includes an exterior plastic receptacle, a interior plastic receptacle inserted into the exterior plastic receptacle and a eutectic solution disposed between the interior receptacle and the exterior plastic receptacle. Various frozen products are inserted into the interior receptacle accommodated in the completely insulated main housing assembly 502 through the cavity opening 506. Multiple electrical devices are accommodated in the compartment of the completely insulated main housing assembly 502 for enabling the functioning of the eutectic appliance. Multiple windows provided at the compartment for facilitating the air flow into the compartment. The compartment covering lid with locking provision 510 covers the compartment.

[46] Referring to FIG. 6 is a diagram 600 depicting an overview of an interior receptacle provided with a top mask. According to a non limiting exemplary embodiment of the present invention, the overview of the interior receptacle provided with a mask depicts an interior receptacle 602 for accommodating frozen products, a high conductivity evaporator tube 604 wrapped around the interior receptacle 602 for circulating a refrigerant around a complete surface of the interior receptacle 602, a cavity opening 606 positioned on the interior receptacle 602 for enabling the accommodation of frozen products into the interior receptacle 602 and a top mask 608 for joining the interior receptacle 602 with an exterior receptacle.

[47] According to a non limiting exemplary embodiment of the present invention, the interior receptacle 602 serves as a storage area for accommodating the multiple frozen products. The multiple frozen products include ice creams, beverages, chocolates and the like. The high conductivity evaporator tube 604 is made with a high heat conductivity material wrapped around the interior receptacle 602 filled with the refrigerant for absorbing the heat present in the storage area. The proper wrapping of the high conductivity evaporator tube 604 around the interior receptacle 602, with decent pitch values ensures the quality of heat absorption in the storage area. The interior receptacle 602 is made with a strong material to hold the weight of the high conductivity evaporator tube 604 and prohibits the interior receptacle 602 from deforming. The interior receptacle 602 consist low corrosion properties to improve the life time of the eutectic appliance and the materials of the interior receptacle 602 includes a galvanized iron (GI) sheet with powder coating, a pre coated galvanized iron (GI) sheet and the like. The top mask 608 is used to join the interior receptacle 602 with the exterior receptacle.

[48] Referring to FIG. 7 is a diagram 700 depicting an overview of an interior receptacle surrounded with multiple eutectic solution pouches. According to a non limiting exemplary embodiment of the present invention, the overview of the interior receptacle provided with the multiple eutectic solution pouches depicts a an interior receptacle 702 for accommodating multiple frozen products, a high conductivity evaporator tube 704 wrapped around the interior receptacle 702 for circulating a refrigerant around a complete surface of the interior receptacle 702, a cavity opening 706 positioned on the interior receptacle 702 for enabling the accommodation of multiple frozen products into the interior receptacle 702, a top mask 708 for the interior receptacle 702 with an exterior receptacle and multiple eutectic solution pouches 710.

[49] According to a non limiting exemplary embodiment of the present invention, the interior receptacle 702 serves as a storage area for accommodating the multiple frozen products. The multiple frozen products include ice creams, beverages, chocolates and the like. The high conductivity evaporator tube 704 is made with a high heat conductivity material wrapped around the interior receptacle 702 includes the refrigerant for absorbing the heat present in the storage area. The proper wrapping of the high conductivity evaporator tube 704 around the interior receptacle 702, with decent pitch values ensures the quality of heat absorption in the storage area. The interior receptacle 702 is made with a strong material to hold the weight of the high conductivity evaporator tube 704 and prohibits the interior receptacle 702 from deforming. The interior receptacle 702 consist low corrosion properties to improve the life time of the eutectic appliance and the materials of the interior receptacle 702 includes a galvanized iron (GI) sheet with powder coating, a pre coated galvanized iron (GI) sheet and the like.

[50] In accordance with an exemplary embodiment of the present invention, the top mask 708 is used to join the interior receptacle 702 with the exterior receptacle. The multiple eutectic solution pouches 710 are placed around the outer surface of the interior receptacle by utilizing a masking tape. The multiple eutectic solution pouches 710 are used to increase the temperature holding capacity of the multiple frozen products accommodated in the interior receptacle 702 through the cavity opening 706. The multiple eutectic solution pouches 710 are positioned on the high conductivity evaporator tube 704. The material of the high conductivity evaporator tube 704 includes copper and the like.

[51] Referring to FIG. 8 is a diagram 800 depicting an overview of an interior receptacle provided with a protective layer on the multiple eutectic solution pouches. According to a non limiting exemplary embodiment of the present invention, the overview of the interior receptacle provided with a protective layer on the multiple eutectic solution pouches depicts a an interior receptacle 802 for accommodating multiple frozen products, a high conductivity evaporator tube 804 wrapped around the interior receptacle 802 for circulating a refrigerant around a complete surface of the interior receptacle 802, a cavity opening 806 positioned on the interior receptacle 802 for enabling the accommodation of multiple frozen products into the interior receptacle 802, a top mask 808 for joining the interior receptacle 802 with an exterior receptacle multiple eutectic solution pouches 810 and a protective layer 812.

[52] According to a non limiting exemplary embodiment of the present invention, the interior receptacle 802 serves as a storage area for accommodating the multiple frozen products. The multiple frozen products include ice creams, beverages, chocolates and the like. The high conductivity evaporator tube 804 is made with a high heat conductivity material wrapped around the interior receptacle 802 includes the refrigerant for absorbing the heat present in the storage area. The proper wrapping of the high conductivity evaporator tube 804 around the interior receptacle 802, with decent pitch values ensures the quality of heat absorption in the storage area. The interior receptacle 802 is made with a strong material to hold the weight of the high conductivity evaporator tube 804 and prohibits the interior receptacle 802 from deforming. The interior receptacle 802 consist low corrosion properties to improve the life time of the eutectic appliance and the materials of the interior receptacle 802 includes a galvanized iron (GI) sheet with powder coating, a pre coated galvanized iron (GI) sheet and the like.

[53] In accordance with an exemplary embodiment of the present invention, the top mask 808 is used to join the interior receptacle 802 with the exterior receptacle. The multiple eutectic solution pouches 810 are pasted around the outer surface of the interior receptacle by utilizing a masking tape. The multiple eutectic solution pouches 810 are used to increase the temperature holding capacity of the multiple frozen products accommodated in the interior receptacle 802 through the cavity opening 806. The multiple eutectic solution pouches 810 are positioned on the high conductivity evaporator tube 804. The material of the high conductivity evaporator tube 804 includes copper and the like. The protective layer 812 is positioned on the multiple eutectic solution pouches 810 for preventing the leakage and protecting the multiple eutectic solution pouches 810. The material of the protective layer 812 includes polyethylene and the like.

[54] As will be appreciated by a person skilled in the art the present invention provides a variety of advantages. Firstly, the invention provides a portable low weight eutectic appliance. Secondly, the invention provides a corrosion free or non corrosive exterior plastic receptacle. Thirdly, the invention improves a lifetime of the eutectic appliance. Fourthly, the invention provides free mobility of the eutectic appliance from one location to another location. Fifthly, the invention provides an easy maintenance of the eutectic appliance.

[55] While specific embodiments of the invention have been shown and described in detail to illustrate the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.

5. CLAIMS

What is claimed is:

1. A portable low weight eutectic appliance for facilitating a low temperature environment, comprising:

an insulated main housing, comprising:

an interior receptacle for accommodating a plurality of frozen products;

an exterior plastic receptacle provided with a plurality of reinforcements for enabling a secure insertion of the interior receptacle; and

a eutectic liquid disposed between the interior receptacle and the exterior plastic receptacle, whereby the eutectic liquid enables to attain a predetermined freezing point.

2. The portable low weight eutectic appliance of claim 1 further comprising at least one cavity opening for facilitating the accommodation of the plurality of frozen products in the interior receptacle.

3. The portable low weight eutectic appliance of claim 1, wherein at least one lid releasably engaged with the insulated main housing at one end of the cavity opening for closing the at least one cavity opening.

4. The portable low weight eutectic appliance of claim 1, wherein the insulated main housing further comprising a compartment to accommodate a plurality of electrical devices for facilitating to attain the low temperature environment.

5. The portable low weight eutectic appliance of claim 1, wherein the insulated main housing further comprising a plurality of perforations for a secure holding of the at least one lid in a hermetically sealed configuration with the insulated main housing.

6. The portable low weight eutectic appliance of claim 1, wherein a high conductivity evaporator tube wrapped around the interior receptacle for circulating a refrigerant around the interior receptacle for an effective absorption of heat.

7. The portable low weight eutectic appliance of claim 1, wherein the exterior plastic receptacle reduces weight of the insulated main housing enabling the portability.

8. A portable low weight eutectic appliance for facilitating a low temperature environment, comprising:

an insulated main housing, comprising:

an interior receptacle for accommodating a plurality of frozen products;

a plurality of eutectic solution pouches attached along an outer surface of the interior receptacle, whereby the plurality of eutectic solution pouches enable to attain a predetermined freezing point;

at least one protective layer surrounding the plurality of eutectic solution pouches for preventing a leakage of a eutectic solution from the plurality of eutectic solution pouches; and

an exterior plastic receptacle provided with a plurality of reinforcements for enabling a secure insertion of the interior receptacle.

9. The portable low weight eutectic appliance of claim 8, wherein the plurality of eutectic solution pouches attached to the interior receptacle by utilizing a masking tape.

10. The portable low weight eutectic appliance of claim 8, wherein the plurality of eutectic solution pouches attached on a high heat conductivity material wrapped around the interior receptacle.

11. A method adapted for providing a low temperature environment in a portable low weight eutectic appliance, comprising:

accommodating an exterior plastic receptacle in an insulated main housing;

enabling a secure insertion of an interior receptacle in the exterior receptacle for accommodating a plurality of frozen products; and

disposing a eutectic liquid between the interior receptacle and the exterior plastic receptacle to attain a predetermined freezing point.

12. The method of claim 8 comprising a step of releasably engaging a lid with the insulated main housing at one end of the cavity for closing the at least one cavity opening.

13. The method of claim 8 comprising a step of positioning a high conductivity evaporator tube around the interior receptacle for circulating a refrigerant around the interior receptacle for an effective absorption of heat.

14. The method of claim 8 comprising a step of facilitating the accommodation of the plurality of frozen products in the interior receptacle through at least one cavity opening.

15. The method of claim 8 comprising a step of securely holding at least one lid in a hermetically sealed configuration with the insulated main housing for closing the at least one cavity opening.

16. The method of claim 8 comprising a step of strengthening the exterior plastic receptacle by providing a plurality of reinforcements.