JP2001504780A - Self-cooling beverage container - Google Patents

Abstract

(57) [Summary] A beverage container such as a can contains a pressurized beverage together with a cartridge (32) containing a refrigerant such as carbon dioxide. The cartridge holder (42) properly holds the cartridge by engaging the inside of the can. A cartridge punch (68) is located between the cartridge and the end of the can. When the can is filled and the end piece is attached, the pressurized beverage releases some of its gas, increasing the gas pressure in the can. Due to the increased gas pressure, the end of the resilient can is deformed. The released beverage gas also extends the cartridge punch and substantially engages the underside of the deformed can end (20). When the pressure in the can is released, the cartridge piercing machine pierces the cartridge to release the carbon dioxide therein, thereby cooling the beverage container and its contents.

Description

BACKGROUND OF THE INVENTION Field of the Invention The self-cooling beverage container invention relates to a self-cooling beverage container placed cartridges compressed refrigerant. When the beverage container is opened and the compression cartridge is pierced, the refrigerant diffuses and is thereby cooled. BACKGROUND OF THE INVENTION Various types of beverages are offered to the masses in metal cans of personal size. In the modern market, cans are made of aluminum and have sides and a bottom formed in one piece by stamping. After the can is filled with the beverage, its top end is properly sealed. Many beverage containers of this type have a lever attached thereto, which is opened along a predetermined line by applying a force to one end thereof. After opening, the beverage can be poured into a drink container or drunk directly from a can. The beverage in the container may be an alcoholic beverage such as beer or a non-alcoholic beverage such as any of the well-known carbonated soft drinks. Many consumers prefer this type of beverage to be cooled. To accommodate such consumer preferences, the beverage container is stored in a refrigerator or ice is placed in a drink container into which the beverage is poured. Those who want to drink the chilled beverage directly from the beverage container must purchase the beverage container before use and cool it in a cooling space. At home, this cooling space is usually a refrigerator that is cooled by a refrigerant that circulates separately. Outside, beverages are stored in ice boxes with ice. While this is the preferred method of transporting and cooling beverage containers, it is not a convenient system due to the need to maintain the presence of ice. Apart from convenient places, it is difficult to maintain the presence of ice, even for a short time. Therefore, a self-cooling beverage container is needed. SUMMARY OF THE INVENTION One aspect of the present invention is directed to a self-cooling beverage container for pressurized beverages. The container may include a refrigerant cartridge that stores the refrigerant in a pressurized state. It is desirable to attach a cartridge holder to the container and hold the cartridge in place. After the can is filled with the beverage containing gas, the top end of the can is sealed to form the can. The end of the can and the wall of the can may be elastic. After the can is sealed, a portion of the beverage gas is released within the can, which increases the pressure of the can and causes the elastic portion, such as the end of the can, to elastically deform outward. A cartridge punch may be attached to the elastically deformed portion of the beverage container due to the pressure. When the beverage container is opened and the internal pressure in the container is released, the elastic part activates the punch and pierces the cartridge, thus releasing the refrigerant, thereby cooling the beverage container and its contents. Is done. An advantage of the present invention is that when a consumer wants a chilled beverage, the consumer can open the container, thereby allowing the consumer to cool the beverage so that he can drink it. An object of the present invention is to provide a cooled beverage container. A further advantage of the present invention is that it provides a cartridge holder and a cartridge punch that can be inserted with a self-pressurized beverage into a standard beverage can, such that after the end is closed, the structure can be used for beverages. The cartridge punch adapts to the pressure deformed portion of the container and, when the pressure in the beverage container is released, releases the refrigerant in the cartridge to cool the beverage in the beverage container. A further advantage of the present invention is that it provides a structure that can be incorporated into a standard beverage container, wherein the self-pressurizing beverage is contained within the container and the beverage container is sealed after the end of the container is sealed. To cool the beverage inside. A further advantage of the present invention is that it adds minimal cost to the beverage container and can be applied thereto without altering the beverage container itself, so that self-cooled beverage containers can be supplied to the public at low cost. And to provide the public with a self-cooling structure that can be used reliably. The features of the invention which are believed to be novel are set forth with particularity in the appended claims. The invention, both as to its structure and method of operation, together with further objects and advantages thereof, will be best understood by reference to the following description in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded view of the self-cooling beverage structure of the present invention with the structure inserted into a beverage container. FIG. 2 is a side view of the cartridge holder in an open state. FIG. 3 is a side view of the cartridge holder in a closed state. FIG. 4 is an enlarged center cross-sectional view of a container containing the self-cooling beverage structure of the present invention therein. FIG. 5 is a plan view taken substantially along the line 5-5 in FIG. FIG. 6 is an enlarged sectional view showing the cartridge punch according to the present invention when it is initially located in the beverage container. FIG. 7 shows a second preferred embodiment of the cartridge punch. FIG. 8 is a cross-sectional view of the beverage container, similar to the top of FIG. 4, with a portion of the cartridge piercing machine cut and sectioned with the beverage container filled with a self-pressurized beverage. FIG. 9 is a view similar to FIG. 8 showing the self-cooling structure with the carbon dioxide cartridge pierced to release the carbon dioxide refrigerant. FIG. 10 is an enlarged detail view showing relief of the pressure of the beverage container. DESCRIPTION OF THE PREFERRED EMBODIMENT In FIG. 4, the container 10 is shown as a centerline section. It has a side wall 12 and a bottom end 14 integral therewith. The sidewall has a substantially right cylindrical shape. The entire container is usually formed in a single mold stroke. The bottom end portion 14 is formed in a dome shape and gives strength to the bottom end portion in consideration of the pressure generated inside the container. The side wall is formed in a cylindrical shape, and thus tension is applied in the circumferential direction by adjusting the pressure of the container, thereby giving strength to the container. The upper portion of the side wall is reduced in diameter at the neck portion 16. The sidewall ends at the upper end 18. The upper end 20 has a bent edge 22. After filling the container, the upper end is put in place and the container is sealed by beveling the end 22 on the top of the neck 16 close to the end 18. A pull tab 24 is attached to the rivet 26 (see FIGS. 5, 8 and 9). The rivet 26 need not be a separate rivet as conventionally practiced, but may be a rivet that projects upwardly from the material of the upper end 28 and forms a head on the pull tab 24. . A stress rising notch 28 is formed in the top end material in a loop shape (see FIG. 5). When the pull tab is raised from the closed position of FIG. 8 to the upright position of FIG. 9, the stress applied to the stress upright notch 28 is sufficient to separate the material, thereby causing the panel 30 to move substantially all its way. The pull tab 24 is configured to open around the circumference and bend downward into the container to the position shown in phantom lines in FIG. This operation near the rivet is shown in greater detail in FIG. This is currently customary in aluminum beer cans and pressurized soft drink cans. It should be noted that the top 20 is substantially flat in the non-pressurized state shown in FIGS. Due to the increase in the internal pressure of the beverage container, the upper end portion is elastically deformed upward as shown in FIGS. Conventional beverage containers are placed in place after being filled with a beverage that has been melted in carbon dioxide, and the top is placed in the proper position and bent. Outgassing of carbon dioxide from the drinking liquid immediately pressurizes the container, and the top 20 elastically deforms to assume the dome shape shown in FIGS. Carbon dioxide cartridge 32 is a conventional one available on the market. It has a body 34 tapered toward the neck 36. Conventionally, since the liquid containing carbon dioxide has a high vapor pressure at room temperature, the main body 34 is made of steel. However, the main body may be formed of aluminum or an alloy. Thus, a high pressure must be maintained. The neck 36 has a pierceable seal diaphragm 38 (see FIGS. 4, 6, 8 and 9). The pierceable seal diaphragm 38 is typically formed from aluminum. These carbon dioxide cartridges are utilized for other uses. When the carbon dioxide cartridge 32 is pierced, it supplies an inflation gas for cooling the liquid beverage 40 into the container 10. The carbon dioxide cartridge 32 is disposed in the container 10 and is held at a predetermined position by a cartridge holder 42 as shown in FIGS. 1, 2, 3, and 4. Desirably, a cartridge holder 42 molded from a plastic, such as a molded thermoplastic copolymer, has a base 44 configured to be located on top of the dome 14. The base may have legs 46 that fit into corresponding grooves at the bottom end. By this fitting, the cartridge holder is accurately positioned in the container 10. A plurality of arms are mounted on the base 44 and extend upwardly therefrom. In particular, although arms 48 and 50 are shown in FIG. 3, it can be seen that six such arms extend equidistantly upward from the base. As shown in FIG. 4, these arms are configured to have a shape and size that enclose the cartridge 32. In FIG. 2, the arms are separated such that the cartridge 32 is inserted therebetween. FIG. 2 shows a state before the cartridge and the cartridge holder are inserted into the container. Although FIG. 1 is an exploded perspective view, the cartridge is first placed in the cartridge holder before being inserted into the beverage container 10. Once the cartridge is located in the cartridge holder, the arms, including arms 48 and 50, are folded inward, which surround the cartridge. As shown in FIG. 4, an elastic polymer foam pad 52 having closed cells is disposed in the cartridge holder below the cartridge. This pad resiliently urges the cartridge upward so that the shoulder of the cartridge about the neck 36 is pressed into engagement with the shoulder formed on the corresponding arm. Fingers are formed on each of the arms. FIGS. 2, 3 and 4 show fingers 54 and 56 as attached to arms 48 and 50. The size of the fingers is such that they resiliently deform and enter the neck of the container, and then spread out in this state to engage the interior of the container at the neck. When the cartridge holder is inserted into the can with the cartridge, the arms are held around the cartridge, and once thus inserted into the can, the fingers are spread out and their pads are moved to the neck of the container. Engage inside. A retainer ring 58 is located on the inside of the arm, which snaps downwardly into the retainer projection 59 to hold the arm in the extended position, as shown in FIG. In this way, the cartridge holder and the cartridge are securely arranged in the beverage container. Cartridge punch 68 is best shown in FIGS. The punch body 62 has a collar 64 sized to be slidable on the neck 36 of the carbon dioxide cartridge 32. This body 62 has a piercing point 66 located inside it relative to the top of the neck 36 prior to piercing, as shown in FIGS. This piercing point pierces diaphragm 38 to release carbon dioxide from cartridge 32 when it is pressed downward as shown in FIG. A vent passage 68 extends upwardly through the body for flowing carbon dioxide gas upward. The cylinder 70 has a cylinder bore 72 large enough to engage a shoulder at the top of the drilling machine body 62. Both the punch body and the cylinder may be formed from a polymer composition material. However, the material of the drilling machine body must be of sufficient hardness so that point 66 is sufficiently rigid to perform the drilling. The side openings 74, when released, allow the outflow of carbon dioxide from the cylinder and allow the pressure of the can to communicate with the bottom of the cylinder. The piston 76 is slidable in the cylinder bore 72. The piston rod 78 is fixed to the piston and moves with it. The piston rod 78 has a downwardly facing shoulder 80. As shown in FIG. 6, when the piston rod is placed in a position below it during installation, this shoulder is located within the resilient collar 82 and closes the top of the cylinder 70. The piston rod is slidable through the collar, but the collar is elastically deformed. Collar and shoulder 80 are positioned such that collar 82 engages below shoulder 80 as piston 76 moves to the top of its stroke as shown in FIG. Thus, only one upward movement of the piston and its piston rod in one direction from the position of FIG. 6 to the position of FIGS. 4 and 8 is possible. The size of this structure is such that when the structure is inserted into a non-pressurized beverage container, the piston rod end 84 is below the flat can end 20 as shown in FIG. It is configured to be located. When the can is filled, the structure is placed in this position. The liquid beverage 40 with the carbon dioxide dissolved in the liquid is filled in the can and the upper end 20 is immediately positioned and sealed. The released carbon dioxide immediately increases the pressure in the can. This pressure rise has two consequences simultaneously. One is to bulge the upper end upward from the flat state of FIG. 6 to the pressurized state of FIGS. Another consequence of the sudden rise in pressure of the beverage container is that the space in the cylinder 70 below the piston 76 is pressurized. This causes the piston 76 and its piston rod 78 to be pushed upward from the position of FIG. 6 to the position of FIGS. This structure is sized such that the end 84 of the piston rod is below the dome-shaped upper end 20. The cartridge piercing machine 60 is placed in its extended position, with its top located below the dome-shaped top, but its piercing point 66 contacts the diaphragm 38 as shown in FIG. With the perforation system thus equipped, the beverage container is stored and transported. The end consumer purchases a beverage container in such an outfit and holds it until the consumer wants a cooled beverage. To open the beverage container, the consumer pulls the pull tab 24 upward. The inclination of the rivet 26 causes the portion adjacent to the stress rising notch 28 to be torn, and the rising of the tab 24 causes the portion of the upper end portion 20 in the region of the stress rising notch 28 to be bent downward by leverage. I do. Thereby, the beverage 40 can be poured out from the opening thus formed in the upper end portion 20 for the first time. Due to the release of pressure in the container caused by opening the beverage container, the upper end portion 20 moves downward from the dome-shaped state by the pressure of FIG. 8 to the substantially flat state of FIG. It returns elastically. This downward movement of the center of the upper end pushes the entire cartridge punch down. The downward force acting on the piston rod 78 is transmitted to the cylinder 70 via the shoulder 80. The cylinder 70 pushes the boring machine main body 62 downward. Such downward movement causes the piercing point 66 to pierce the diaphragm 38, as shown in FIG. The perforation of the diaphragm 38 allows the release of carbon dioxide in the cartridge. An upward flow of carbon dioxide is generated in the cylinder 72 through the vent passage 68 and flows out therefrom through the opening 74. The carbon dioxide bubbles upward in the liquid and is released outside through the opening of the can at the end 20. Cooling occurs due to the expansion of the carbon dioxide. The expanded carbon dioxide gas flowing out of the opening 74 has a low temperature. Furthermore, the carbon dioxide cartridge 32 is cooled by this expansion. As shown in FIG. 4, this cooling of the cartridge allows for the absorption of heat from a substantial amount of the liquid beverage in the container 10. If the consumer waits one minute after opening the can before drinking his beverage, it can be seen that the beverage is substantially uniformly charged. The cooled beverage can be drunk directly from the can, if desired. It may be desirable to apply a thrust force to the piercing point 66 that is greater than the force resulting from the action described above at the dome-shaped can end 20 applied to the piston rod 78. In such a case, the foam pad 52 is configured to compress and deform the foam pad 52 by the initial pressure of the beverage container, thereby storing energy in the pad. Thus, when the end 20 of the can is opened, the compression of the foam pad 52 is released, giving an upward thrust force to the cylinder 34, thereby causing the cylinder diaphragm 38 to move upward relative to the piercing point 66. It is effectively pushed up. In addition, when the container is pressurized, the bottom dome end deforms downward, storing additional potential energy for opening and subsequent lifting of the cylinder 34 and its diaphragm 38. It may be desirable to minimize the amount of carbon dioxide directly incorporated into liquid beverages. If an excessive amount of carbon dioxide is mixed into the liquid beverage, an undesirable foaming phenomenon may occur. 7 has the same main body 62 and the same cylinder 70 as described above. In the cartridge drilling machine 86, the piston rod 90 to which the piston 88 is attached has a carbon dioxide passage 92 in the longitudinal direction. Using a cartridge piercer, when carbon dioxide is released from the cartridge, a large amount of carbon dioxide rises through this passage 92 and at the top of the piston 90 it flows directly out of the container. I do. Although the cylinder 70 has a side opening 74, such an upper relief passage 92 reduces the amount of carbon dioxide released into the beverage, as required above. Therefore, the possibility of foaming is minimized. Although the invention has been described in the best mode currently contemplated, it will be apparent that, within the capabilities of those skilled in the art, numerous modifications, aspects and embodiments can be made without resorting to inventive activity. It is. Accordingly, the scope of the present invention is specified by the following claims.

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Claims (1)

[Claims] 1. Forming a beverage container so that the beverage container can be filled with a self-pressurized beverage A wall and an end including at least one separate end for the The container is sealed and closed, and at least a part of the container is Walls and ends, which are deformable portions that are elastically deformed by the pressure of the vessel,   A diamond that can be pierced to release the internal refrigerant and perform cooling by expansion of the refrigerant A pressurized refrigerant cartridge having a flam, wherein the cartridge is cooled by cooling the cartridge. Providing heat transfer with the beverage in the container such that the beverage in the container is cooled. Pressurized refrigerant cartridge,   A punch in proximity to the diaphragm, wherein the deformable portion of the container is When released from the deformed state by release of pressure in the container, the diaphragm The ram is pierced to release the refrigerant from the cartridge and thus the drinking water in the container. Drilling machine to cool the material Self-cooling type beverage container consisting of: 2. The deformable portion is an end of the container. Self-cooling beverage container. 3. The container has an end integrally formed with the wall, and The container has the separation end, and the separation end of the container is the deformable portion. The self-cooling beverage container according to claim 2, characterized in that: 4. The drilling machine has first and second portions, wherein the first portion includes a drilling point. Drilling machine main body for holding the deformable portion, wherein the deformable portion is in an undeformed state. The punch is arranged in a beverage container, and the deformable portion is deformed. The second portion may be extended such that the second portion extends with respect to the first portion. 2. The self of claim 1, wherein the self is extensible away from the piercing point. Cooled beverage container. 5. 5. The method according to claim 4, wherein the deformable portion is an end of the container. Self-cooling beverage container. 6. The refrigerant cartridge and the punch are arranged in the beverage container, Characterized in that it is located in the part of the beverage container away from the deformable part A self-cooling beverage container according to claim 5. 7. The second part has a piston, the piston being adapted to the pressure of the container. Therefore, the second part is extended with respect to the drilling machine by being pressurized. The self-cooling beverage container according to claim 4. 8. The drilling machine,   A body and a piercing point on the body, wherein the body comprises the pressurized refrigerant car. Along with the perforation point on the cartridge adjacent to the diaphragm, A body and a piercing point slidable with respect to the media cartridge;   Movably mounted to the body and proximate the deformable portion of the container; With the movable member placed in contact with it, and   Perforating the diaphragm by depressurization of the container, The elastically deformable portion is deformed by the pressure of the container so as to release the refrigerant. Means for moving the movable member in only one direction with respect to the main body when When The self-cooling beverage container according to claim 1, comprising: 9. Walls and ends forming a sealable pressurized beverage container, wherein said walls and At least one of the ends is a deformable portion that is elastically deformed by the pressure of the container. Certain walls and ends,   A cartridge for containing a pressurized refrigerant, said cartridge being pressurized from said cartridge. A diaphragm for releasing the refrigerant, wherein the refrigerant is released from the cartridge; When the beverage container is cooled, the beverage in the beverage container is cooled. A cartridge that provides heat transfer;   When the beverage container is decompressed and the deformable portion returns to its original state Piercing the cartridge diaphragm corresponding to the elastically deformable portion, Means for releasing the refrigerant from the cartridge, Self-cooling type beverage container consisting of: 10. The means for piercing comprises a piercing point substantially contacting the diaphragm. By means of a cartridge piercing machine with a container and the release of pressure in the beverage container, The elastically deformable portion so as to pierce the perforation point into the diaphragm 10. The self-cooling according to claim 9, comprising a member substantially in contact with the member. Type beverage container. 11. The member is movable in only one direction, away from the piercing point The self-cooling beverage container according to claim 10, characterized in that: 12. The drilling machine has a cylinder and a piston disposed in the cylinder. The member is moved by the pressure near the piston. 12. The self-connecting device according to claim 11, wherein the member is connected to the member so that the member is connected to the member. Cooled beverage container. 13. The perforator is located within the beverage container, and the Upon pressurization, the deformable portion deforms to move the member away from the piercing point. When the piston is extended in only one direction by the pressure of the beverage container, Move to move the member toward the deformable portion. A self-cooling beverage container according to claim 12. 14． The member is a piston rod extending outside the drilling machine, and Between the boring machine and the piston rod, the boring machine of the piston rod That internal engagement means for allowing movement in only one direction are provided. The self-cooling beverage container according to claim 13, wherein 15. Through the open end, a beverage containing dissolved carbon dioxide is filled, and then Beverage container where the open end is closed and sealed to form a strong beverage container A wall forming a vessel, and first and second ends, wherein said first and second A wall whose two ends are elastically deformable apart from each other by the pressure of the beverage container; And a first and second end;   Carbon dioxide disposed in the pressure beverage container and mounted on the second end A refrigerant cartridge filled with element, and   To pierce the carbon dioxide refrigerant cartridge engaged with the cartridge Means for perforating the beverage container, wherein when the beverage container is depressurized, the carbon dioxide refrigerant cartridge is Perforated to release the carbon dioxide refrigerant therefrom, thereby providing the beverage in the container. Arranged to substantially contact the elastically deformable first end for cooling With perforation means Self-cooling type beverage container consisting of: 16. The drilling machine has a drilling point close to the carbon dioxide refrigerant cartridge. And a member proximate the deformable end, wherein the drilling machine includes Can be moved in one direction only, so as to increase the distance between the hole point and the member The self-cooling beverage container according to claim 15, characterized in that it is provided. 17． The member is a piston rod, located in the drilling machine and the screw A piston connected to the ton rod is provided, and the piston rod and the front The piston rises at the same time as the pressure in the beverage container rises, When the end deforms, the distance between the point and the piston rod is The drilling machine is movable with respect to the drilling machine so as to spread. A container for self-cooling beverages according to item 1. 18. The drill comprises a cylinder in which the piston slides, and A collar around the piston rod, wherein the collar is Piston rod for movement in only one direction away from the drilling point of the rod. 18. The self-cooling beverage container according to claim 17, wherein the container is engaged with a beverage. 19. A cartridge holder is provided in the beverage container, and the cartridge is provided. The cartridge holder engages and holds the cartridge, and The cartridge holder is supported by the second end of the beverage container. 19. The self-cooling beverage container according to claim 18, wherein 20. The cartridge holder has a finger, and the finger is used for the beverage. A large enough to engage within the container to hold the cartridge holder at the second end. The self-cooling type according to claim 19, having a size and a mounting position. Beverage container. 21. The cartridge holder can be fitted to an open end of the beverage container, and In the beverage container, a structure is provided that engages and holds the second end thereof. 20. The self-cooling beverage according to claim 19, having a shape and size. Container. 22. A compressed refrigerant cartridge holder having a base, the opening of a beverage container. And engaged with the closed second end of the beverage container. Having a size and a structure that engage with each other in the beverage container and Having a finger for holding a cartridge holder in the beverage container. Cartridge holder. 23. For engaging the finger and holding the finger in the cartridge holding position. The cartridge holder according to claim 22, further comprising a retainer. Ruda. 24. The cartridge holder holds a compressed refrigerant cartridge having a neck. , Wherein the neck is oriented toward the first end of the beverage container. 24. The cartridge holder according to claim 23. 25. The retainer is located between the finger portions and holds the finger portion outward. Wherein the ring is a neck of the refrigerant cartridge in the cartridge holder. 25. The cartridge according to claim 24, further comprising an opening through which the portion passes. Cartridge holder. 26. Closed by an open first end and an end body for closing the first end. Parts disposed in a beverage container having a shaped second end;   With respect to one of the ends, a cartridge for holding a cartridge of compressed refrigerant. Cartridge holder,   Between the cartridge in the cartridge holder and the other of the ends Engage and pierce the compressed refrigerant cartridge when the beverage container is depressurized With a drilling machine configured as A component comprising: 27. The drilling machine operates the drilling point and the drilling point to perform compression cooling. A member for perforating the medium cartridge. The cartridge according to claim 26. 28. The member is configured such that the beverage container is filled with a pressurized beverage, and the container With the first end closed, the piercing machine raises the pressure in the beverage container. When pressurized, it moves away from the perforation point in only one direction. 28. The component according to claim 27, wherein: 29. The drilling machine engages a pressurized refrigerant cartridge to pierce it. A boring machine body having a perforation point, and moving in only one direction away from said perforation point 27. The unit according to claim 26, further comprising a movable member. Goods. 30. The movable member moves the perforation point to form a pressurized refrigerant cartridge. In order to pierce the beverage container, the movable member is provided in the beverage container. A piston for moving the movable member away from the perforation point when pressurized 30. The component of claim 29, comprising a component. 31. Closed by an open first end and an end body for closing the first end. Parts disposed in a beverage container having a shaped second end;   With respect to one of the ends, a cartridge for holding a cartridge of compressed refrigerant. Cartridge holder,   Between the cartridge in the cartridge holder and the other of the ends With the drilling machine to engage The drilling machine comprises a piercing point and a piercing point. Wherein the beverage container is filled with a pressurized beverage, Then, in a state in which the first end of the container is closed, the punching machine is in the beverage container. When pressurized by the increase in pressure in one direction away from the perforation point The punch is configured to move only when the beverage container is depressurized. Characterized by being configured to pierce the pressurized refrigerant cartridge parts. 32. Closed by an open first end and an end body for closing the first end. Parts disposed in a beverage container having a shaped second end;   With respect to one of the ends, a cartridge for holding a cartridge of compressed refrigerant. Cartridge holder,   Between the cartridge in the cartridge holder and the other of the ends With the drilling machine to engage The drilling machine engages a pressurized refrigerant cartridge to pierce it. Drilling machine body having a piercing point, and only one direction away from the piercing point And a movable member that is movable to the side. 33. Closed by an open first end and an end body for closing the first end. Parts disposed in a beverage container having a shaped second end;   With respect to one of the ends, a cartridge for holding a cartridge of compressed refrigerant. Cartridge holder,   Between the cartridge in the cartridge holder and the other of the ends With the drilling machine to engage The drilling machine engages a pressurized refrigerant cartridge to pierce it. Drilling machine body having a piercing point, and only one direction away from the piercing point And a movable member that is movable to the To move the point and to pierce the pressurized refrigerant cartridge, And the movable member presses the movable member when the beverage container is pressurized. Characterized by having a piston for moving away from the hole point parts.