JP2022522698A - Pressurized beverage container system - Google Patents

Abstract

The beverage container (10) comprises an adjustment cylinder (50) that is open to the atmosphere at the first end and open to the closed interior of the beverage container (10) at the second end. The piston (54) is in the cylinder (50). The clearance port (76) is located in the middle of the end of the adjusting cylinder (50) and is controlled by the piston (54). The pressure cartridge (12) controlled by the regulating valve (80) communicates with the sealed interior of the beverage container (10). The valve stem (90) operably extends from the piston (54) through the restricted annular passage (84) to the regulating valve (80). The piston (54) is engaged with the valve stem (90) below a preselected pressure difference between the sealed interior and the atmosphere, and is greater than or equal to another preselected pressure difference between the sealed interior and the atmosphere. It is disengaged from the valve rod (90). The valve housing (34) slidably extends around the valve stem (90) with the annular filling passage (32) controlled by the filling nozzle (30) facing out of the restricted annular passage (84). It may be present. [Selection diagram] Fig. 1

Description

The technical field of the present invention is a closed container beverage quantitative discharge system.

Beverages that are quantitatively discharged from a closed container or barrel under pressurized conditions are customarily pressurized in the container with the help of a pressurized medium such as carbon dioxide. This medium is provided into the container with a relatively high excess pressure in the same compartment containing the beverage and accumulates in the headspace above the beverage to be quantitatively ejected. During use, the initial pressure decreases as the beverage is dispensed from the container in a fixed quantity. This occurs because part of the pressurized medium as a gas exits the container with the beverage, increasing the headspace occupied by the pressurized gas.

In order to compensate for the decrease in pressure of this gas in the headspace, a device for inserting additional pressurized gas into the headspace has been used. One such device is shown in WO 99/47451, which activates the valve mechanism to temporarily open it and pressurizing gas to flow from the chamber into the headspace. A movable wall is provided in the chamber to allow for. US Pat. No. 4,711,377 and US Pat. No. 5,785,211 disclose the use of an air pump to repressurize a beverage container with air. US Pat. No. 5,199,609 and US Pat. No. 7,131,560 teach the use of connected carbon dioxide gas cylinders for repressurization. US Pat. No. 8,469,239 discloses a pressure control device for use with a beverage container, which comprises a piston mounted in a cylinder for opening and closing the gas supply and a pressure control chamber. A scavenger for removing incoming carbon dioxide is housed in the chamber.

The present invention relates to a beverage container provided with an adjusting cylinder that is open to the atmosphere at the first end and open to the inside of the beverage container at the second end. There is a piston in the cylinder. A valve stem extends from the second end of the adjusting cylinder. The piston is engaged with the valve stem below a preselected pressure difference between the sealed interior and the atmosphere, and is engaged and disengaged from the valve stem above another preselected pressure difference between the sealed interior and the atmosphere. To. There is a regulating valve between the pressurized fluid source and the sealed interior. The regulating valve is controlled by a valve stem to guide the pressurized fluid into a sealed interior.

In the first aspect of the present invention, an escape port is located in the middle of the end of the adjusting cylinder and communicates with the atmosphere. If the pressure inside the closed vessel is excessive with respect to the atmosphere, the piston can open the vent by more than such an excess pressure difference between the closed interior and the atmosphere. The piston spring may urge the piston and may exhibit a gradual spring constant.

In a second aspect of the invention, the plug that closes the elongated cartridge is provided with a valve bar passage through it with a regulating valve at one end and communicates with a closed interior at the other end. The valve bar extends through the valve bar passage to the regulating valve. The valve bar defines a restricted annular passage within the valve bar passage. When the pressurized fluid source is filled with liquid carbon dioxide, the restricted annular passage evaporates the liquid carbon dioxide before reaching the enclosed interior.

In another third aspect of the invention, the plug through the second end of the elongated cartridge comprises a plug passage through it. The valve housing comprises a housing seat and a valve bar passage through the housing around the housing. The valve housing has an annular passage in between at a first position where the housing seat engages the plug and closes the annular passage between them and at a second position where the housing seat engages and disengages from the stopper and opens the annular passage between them. It extends slidably through the plug passage in the state of being slid. The valve housing can work with the filling nozzle to pull the valve housing away from the housing seat 38 for rapid filling through the annular passage. An alternative threaded post at the end of the valve housing can be screwed into the adjusting cylinder to hold the valve housing with the annular passage closed.

Both of the above embodiments are intended to be used together even more advantageously. Therefore, a main object of the present invention is to provide an improved beverage container equipped with an elongated pressure cartridge and a pressurized medium metering discharge valve system. Further objectives and advantages will be apparent from the structure and usage description below.

It is a vertical sectional view through the center line of a pressurized beverage container system. It is a vertical sectional view passing through the center line of a pressure cartridge. It is a vertical sectional view through the center line of a pressure cartridge and a filling nozzle. It is a vertical sectional view through the center line of a pressure cartridge and a pressure nozzle. It is a vertical sectional view through the center line of a gas fixed quantity discharge valve system. It is a vertical sectional view passing through the center line of an adjustment cylinder. It is a vertical sectional view through the center line of a gas fixed quantity discharge valve system. It is a vertical sectional view through the center line of the 2nd Embodiment of a gas fixed quantity discharge valve system. It is a vertical sectional view through the center line of the 2nd Embodiment of a pressurized beverage container system.

With reference to the drawings in detail, two preferred embodiments of a pressurized beverage container system for beverages are shown. Each feature is compatible. Pressurization of the sealed interior, including the headspace above the beverage, is advantageous for quantitative discharge of large volumes of beverage. The beverage may be of any kind, such as soft drinks, water or beer. The system is even more advantageous for carbonated drinks when the pressurized fluid is carbon dioxide. A pressure cartridge is installed in the beverage container equipped with the gas metering discharge valve system. The valve system safely quantitatively discharges the pressurized fluid that accumulates inside the sealed interior of the beverage container. The pressure in the container is adjusted by the difference between the beverage container pressure and the atmosphere accessible by installing a valve system in the beverage container. U.S. Patent Application Publication No. 2019/0383312, published December 19, 2019 in the name of Radford, is also referred to, the entire disclosure of which is incorporated herein by reference.

FIG. 1 shows a first embodiment of a beverage container 10 provided with an elongated pressure cartridge 12 and a gas metering discharge valve system 14. The elongated pressure cartridge 12 becomes a pressurized fluid supply source when filled. The beverage container 10 is shown in the beverage fixed-quantity discharge direction. In this orientation, the gas metering discharge valve system is best used in the state of being coupled to the beverage container bottom lid 16. This directs the elongated pressure cartridge 12 such that the closed end 18 is vertically above the access end 20 to provide existing headspace or headspace that arises with the use of pressurized gas in the cartridge 12. This orientation also corresponds to an opening to the atmosphere in a convenient and protected position on the beverage container 10.

2 and 3 show the filling of the cartridge into the beverage container 10 before mounting. The elongated pressure cartridge 12 is internally provided with a threaded port 22. The stopper 24 is screwed into the port 22 and is sealed by the O-ring seal 26. The stopper 24 includes an end 28 for fitting to the filling nozzle 30. When the filling nozzle 30 is engaged, the filling passage 32 fills the cartridge 12 through the filling nozzle 30.

In the first embodiment, the valve housing 34 extends through the plug 24. The valve housing 34 comprises a threaded post 36 at one end thereof extending from the stopper 24. The other end of the valve housing 34 includes a regulating valve, which will be discussed later. The valve housing 34 is slidably arranged through the plug 24 so that there is a flow path along the valve housing 34 between the valve housing 34 and the plug 24. A housing O-ring seat 38 around the valve housing 34 is located at the regulating valve. The housing seat 38 is positioned so that the valve housing 34 is seated in contact with the plug 24 in a state where the valve housing 34 is in the first uppermost position in the plug 24. The housing seat 38 closes the flow path between the plug 24 and the valve housing 34 at this position, as seen in FIG. The flange 40 holds the retaining clip 42 and ensures limited movement of the valve housing 34 through the stopper 24.

FIG. 3 shows the valve housing 34 in the second position. In this second position, the housing seat 38 is disengaged from the plug 24 to open the flow path between the plug 24 and the valve housing 34. Arrow 44 in FIG. 4 indicates a flow path around the valve housing 34. The downward displacement of the valve housing 34 within the plug 24 is achieved using the filling nozzle 30. The filling nozzle 30 is lowered to the top of the stopper 24 and engaged. The filling passage 32 through the filling nozzle 30 is small positioned around the filling passage 32 to define a stop 48 that abuts the valve housing 34 when the filling nozzle 30 is pressed downward against the stopper 24. Includes a portion having a passage 46.

With the filling nozzle 30 engaged to the stopper 24, the valve housing 34 is pressed against the cartridge 12 to open the flow path around the valve housing 34. In this second position, the flow path around the valve housing 34 allows a large amount of flow from the filling nozzle 30 to enter and fill the elongated pressure cartridge 12.

When the cartridge 12 is filled, the valve housing 34 closes to a first position when the filling nozzle 30 is removed in response to an increase in pressure in the cartridge 12. The cartridge 12 is then filled and ready to be assembled with the gas metering discharge valve system 14 with the adjusting cylinder 50. In this first embodiment, the adjusting cylinder comprises a threaded port through its bottom for engaging with the threaded post 36. This engagement ensures that the valve housing 34 remains in the closed first position.

In this first preferred embodiment shown in FIGS. 1-8, the adjusting cylinder 50 is fitted to the elongated cartridge 12 around the stopper 24 in order to assemble the cartridge 12 with the gas metering discharge valve system 14. The gas metering discharge valve system 14 is assembled with the elongated pressure cartridge 12 with the adjusting cylinder 50 extending as a cylindrical socket around the open end of the elongated pressure cartridge 12, by threading, tightening or other means. Hold.

The adjusting cylinder 50 is closed by a cylinder head 52 and includes a piston 54 slidable within the adjusting cylinder 50. The piston 54 includes a piston seal 56 around the piston 54 to divide the adjusting cylinder 50 into two variable volume chambers 58 and 60. The chamber 58 adjacent to the cylinder head 52 is open to the atmosphere through the access port 62 in the cylinder head 52. The chamber 60 on the other side of the piston 54 is open to the beverage pressure in the beverage container 10 through the port 64.

A piston spring 66 extends in the chamber 58 between the cylinder head 52 and the piston 54. The piston spring 66 urges the piston 54 toward the elongated cartridge 12. The piston spring 66 may be a common coil spring or may be configured to provide two spring constants in different compression ranges of the piston spring 66. Such complex configurations include two concentric coils or a composite coil configuration that includes two parts of a coil, each of which exhibits a different spring constant. When using two coils, the stiffer coil becomes shorter so that it does not touch the coil until the piston exceeds the piston's adjustment range and approaches the clearance port described below (see FIG. 9). ing. When using a composite coil, the spring constant acts continuously as well. These spring configurations are collectively referred to as a piston spring 66 in the present specification.

In the chamber 60 opened to the drinking pressure, the inner cylinder 68 is arranged with the upper end defining the cam 70. The cam 70 interacts with a driven node 72 located above the piston 54. The piston 54 is rotatable within the adjusting cylinder 50 so that the driven node 72 can be held in a displaced position away from the elongated cartridge 12. The rotation of the piston 54 releases the driven node 72 from the cam 70 and allows it to move towards the elongated cartridge 12 during operation.

A piston drive shaft 74 driven by an element outside the beverage container passes through the cylinder head 52 to rotate the piston 54 to engage or disengage the driven node 72 above the piston 54 with / from the cam 70. It has been extended. The piston drive shaft 74 may have a rectangular cross section and may be in a state of being engaged with the piston 54. The drive shaft 74 is fixed to the piston 54 and is slidable through the cylinder head 52 to accommodate the movement of the piston 54 within the adjusting cylinder 50.

The adjusting cylinder 50 is provided with a clearance port 76 in the middle of the end portion of the adjusting cylinder 50. The relief port 76 extends as a channel to the end of the adjusting cylinder 50 adjacent to the cylinder head 52. Chambers 58 and 60 on either side of the piston 54 if the piston 54 rises in the adjustment cylinder 50 to a position where the piston seal 56 goes past the end of the clearance port 76 at the midpoint in the adjustment cylinder 50. Is in a communicative state for pressure release of the chamber 60 through the access port 62. When the chamber 58 communicates with the beverage pressure in the beverage container 10 through the port 64, the beverage pressure in the beverage container 10 communicates with the atmosphere as indicated by the arrow 77 in FIG. This condition exists until the drinking pressure drops and the piston seal 56 crosses the end of the clearance port 76. The vent 76 is sized to slowly reduce the pressure of the beverage in order to expel only excess pressure.

Arrow 78 in FIG. 6 shows the flow path from the pressure canister 12 to the chamber 60 open to the port 64 into the beverage container 10. The regulating valve 80 that controls this flow path is located on the valve housing 34 at the end of the plug 24 in the pressure cartridge 12. The regulating valve 80 comprises an inlet 82 and an outlet from a central valve bar passage 84 in a valve housing 34 extending through it to a threaded post 36. The valve element 86 extends into the valve stem passage 84 of the valve housing 34. The O-ring seat 88 is sandwiched between the valve housing 34 and the valve element 86 in a state where the valve element 86 extends into the valve rod passage 84.

When the filling of the elongated cartridge 12 is completed, the valve rod 90 is inserted into the valve rod passage 84 of the valve housing 34 before assembling with the adjusting cylinder 50. A small gap is provided between the valve stem 90 and the valve stem passage 84 to create an annular flow path. The valve stem 90 extends to the valve element 86.

When the adjusting cylinder 50 is assembled with the pressure cartridge 12 at the end of the valve stem 90, which is largely adjacent to the piston 54, the pressing pad 92 slightly displaced from the plug 24 is positioned to receive the piston 54. .. Therefore, the force on the pressing pad 92 toward the plug 24 presses the valve element 86 against the valve spring 94 to open the adjusting valve 80. The pressing pad 92 is below the pressing pad 92 so that the seal is not generated when the valve rod 90 is pressed against the end of the stopper 24 and the flow around the valve rod 90 through the valve rod passage 84 is not blocked. It is built with a radial relief in.

The annular flow path between the valve stem 90 and the valve stem passage 84 provides a pressure drop through the length of the annular passage to ensure that if carbon dioxide is the pressure medium, it is liquid before it reaches the chamber 60. Is properly sized to evaporate from the cartridge 12. In this first embodiment, the flow rate limiting nozzle 96 may also be coupled to the inlet 82 of the regulating valve 80. The nozzle 96 extends adjacent to the closed end of the elongated cartridge 12. Nozzle 96 comprises a limiting tube 98 to provide additional pressure drop to ensure that liquid carbon dioxide evaporates from the cartridge 12 before reaching chamber 60.

Looking at the second embodiment shown in FIG. 9, only the modifications to the first embodiment are shown here. The rest of this disclosure is applicable to both embodiments. Filling the elongated pressure cartridge 12 is simplified in a second embodiment using filling of fluid flowing directly through a smaller central valve stem passage 84 through the plug 12. The valve housing 34 of the first embodiment is not used. Instead, a regulating valve 80 is used to fill the pressure cartridge 12. For assembly with the gas metering discharge valve system 14, the regulating valve 80 is also closed to seal the compressed fluid in the cartridge 12 to be filled. In the absence of the slidable elongated valve housing 34 and threaded post 36 in the stopper 24, there is no screwing with the gas metering discharge valve system 14. The adjusting cylinder also comprises a cylindrical socket around the open end of the elongated pressure cartridge 12.

The regulating valve 80 in the second embodiment is formed separately and can be assembled with the end of the plug 24. Similar to the first embodiment, the regulating valve 80 comprises a valve inlet 82, a valve element 84, and an outlet through a central valve bar passage 84 and an O-ring seat 88. The valve bar 90 having the pressing pad 92 is similarly arranged in the central valve bar passage 84 in contact with the valve element 84. Again, by selecting a properly sized valve rod 90, the annular passage between the valve rod 90 and the valve rod passage 84 evaporates the liquid carbon dioxide into a gas before reaching the chamber 60. do. The valve inlet 82 in this second embodiment is engaged with a rigid tube 100 adjacent to and extending from the plug end of the elongated pressure cartridge 12 adjacent to the closed end of the cartridge 12.

FIG. 9 shows a second embodiment using a spring 66, which is two coils 104, 106, rather than a complex coil of two spring constants as referred to in the first embodiment. The less flexible coil 106 is shown displaced from the piston 54 when the piston 54 is within its normal operating range. As mentioned above, the spring 66 is for identifying both devices.

During operation, the elongated cartridge 12 is first filled with a pressurized gas, most commonly carbon dioxide, by the mechanism described above along the path of arrow 44 in FIG. Carbon dioxide can be safely stored in liquid form to increase the amount of effective gas available for use within the sealed interior of the beverage container 10.

The filled cartridge 12 is assembled with the adjusting cylinder 50 by first arranging the valve stem 90 in the passage 84 and then arranging the adjusting cylinder 50 so that it can be assembled at the plug end of the elongated cartridge 12. The piston 54 is preferably rotated in the adjusting cylinder 50 to a position where the cam surface 70 engages the cam driven node 72. The valve mechanism cannot be driven in this orientation. The cylinder head 52 is mounted by conventional methods such as forming a mounting disc 102 around a cylindrical extension of the cylinder head 52 and a mounting disc 102 crimping portion that is assembled with the beverage container lid 16 as seen in FIG. It can be engaged with the disc 102. The piston drive shaft 74 remains accessible through the mounting disc 102, and the gas freely travels along the drive shaft 74 through the access port 62 and the mounting disc 102 to the atmosphere. Therefore, the chamber 58 of the adjusting cylinder 50 adjacent to the cylinder head 52 is maintained at atmospheric pressure.

After the elongated cartridge 12 is coupled to the beverage container bottom lid 16 of the beverage container 10, the piston drive shaft 74 is driven from the outside of the beverage container 10 and the cam driven node 72 is operated to move away from the cam 70 to operate the pressurizing system. Can be activated. The system can be repeatedly turned on and off by the piston drive shaft 74.

Regardless of the activated state, there is a safety mechanism for preventing excessive pressure in the beverage container 10 due to leakage of the elongated cartridge 12 into the beverage container 10. Regardless of the state of the valve, a pressure rise beyond the normal operating range of the beverage container 10 is received by the chamber 60 through the port 64. As a result, the piston 54 rises against the force of the piston spring 66. With a preselected pressure difference between the sealed interior and the atmosphere, the piston 54 rises to an intermediate position within the adjusting cylinder 50 to open the vent 76 and any excess as indicated by arrow 77 in FIG. Releases a wide range of drinking pressure into the atmosphere. An appropriate upper limit for beverage vessel pressure may be preselected by selecting an appropriate spring constant for the piston spring 66, which may be the stiffer constant when the composite spring 66 is used. ..

In normal operation, the piston 54 is in equilibrium with the piston springs 66 resisting the pressure difference between the atmosphere and the drinking pressure on both sides of the piston 54. When the beverage is withdrawn from the beverage container 10, the beverage pressure in the beverage container 10 drops and the piston spring 66 moves the piston towards the beverage pressure chamber 60. The piston 54 engages the pressing pad 92 with sufficient pressure drop. Finally, the regulating valve 80 opens when the valve spring 94 loses due to a preselected pressure difference between the sealed interior and the atmosphere. The filled gas from the elongated pressure cartridge 12 can then flow through the valve through the chamber 60 and finally through the flow path of arrow 78 in FIG. 6 to the headspace in the beverage container 10. As the pressure rises in the beverage container 10, the piston 54 retracts and engages and disengages from the valve stem 90. Thus, proper pressure filling is maintained within the beverage container 10. The appropriate beverage vessel pressure may be preselected by selecting the appropriate spring constant and initial compression for the piston spring 66. A single spring constant may be used, depending on the difference between the pressure in the appropriate beverage quantitative discharge range and the pressure at which safe release is activated, or the spring may exceed the beverage pressure range during normal operation. May have complex features with an increase in.

The beverage pressure system is shown as being used with the beverage container bottom lid 16. This directs the plug end 20 of the elongated cartridge 12 vertically beneath the closed end 18 of the elongated cartridge 12. Headspace is present in that orientation or is created in the cartridge 12 by the use of pressurized gas. For this purpose, a rigid tube 100 or nozzle 96 extends from the regulating valve inlet 82 adjacent to the closed end 18. If there is headspace in the cartridge 12 below the end of the tube 100 or nozzle 96, only the gas filling will enter the valve. If the filling is liquid carbon dioxide, different orientations of the beverage container or overfilling of the elongated cartridge 12 will cause the liquid to move through the tube 100 or nozzle 96 into the valve. It is preferable that liquid carbon dioxide does not enter the beverage container 10 directly. If you enter directly, you have more chances of a surge in pressure. To overcome this possibility, the valve bar 90 is sized to be closer to the cross-sectional area of the central valve bar passage 84 as described above, which induces a pressure drop due to the flow and liquid carbon dioxide. It travels to the chamber 60 below the piston 54 in the adjusting cylinder 50 and then prevents it from moving through the port 64 into the beverage container.

Therefore, an improved beverage container with a pressurization system is disclosed. Although embodiments and uses of the invention have been illustrated and described, it will be apparent to those skilled in the art that more modifications can be made without departing from the concepts of the invention herein. Therefore, the present invention is not limited except for the purpose of the appended claims.

Claims (10)

An adjustment cylinder that is open to the atmosphere at the first end and is open to the inside that is sealed at the second end, and is an escape that communicates with the atmosphere in the middle of the end of the adjustment cylinder. An adjustment cylinder with a mouth and
A piston that is slidable in the adjustment cylinder and has a piston seal,
A piston spring that urges the piston toward the second end of the adjusting cylinder, the piston acting against the urging of the piston spring to the sealed interior and the atmosphere. A piston spring that opens the relief opening at a pressure difference greater than or equal to the first preselected pressure difference of the above.
A valve rod extending from the second end of the adjusting cylinder, wherein the piston is the urging of the piston spring below a second preselected pressure difference between the sealed interior and the atmosphere. Engages with the valve bar and is engaged and disengaged from the valve bar against the urging of the piston spring by greater than or equal to the first preselected pressure difference between the sealed interior and the atmosphere. When,
A pressurized fluid source comprising an elongated cartridge having a first end and a second end within the beverage container, wherein the second end of the elongated cartridge has a port through it. Pressure fluid source and
An inlet that communicates fluid with the pressurized fluid supply source, an outlet that communicates fluid with the sealed interior, a valve element engaged by the valve stem, a valve seat, and the valve element are in contact with the valve seat. A regulating valve with a valve spring urged so that the valve element opposes the valve spring urging by the second preselected pressure difference between the sealed interior and the atmosphere. A regulating valve that is displaced from the valve and
A valve rod passage, the regulating valve is at one end of the valve rod passage, another end of the valve rod passage is fluid-operated with the sealed interior, and the valve rod is said to be the valve rod. The passage extends to the control valve, the pressurized fluid source is filled with liquid carbon dioxide, and the valve bar defines and demarcates a restricted annular passage in the valve bar passage. A closed interior demarcating beverage container with a valve bar passage for evaporating the liquid carbon dioxide flowing through it. A plug passing through the second end of the elongated cartridge, provided with a plug passage through it.
A valve housing provided with a housing seat and a valve bar passage through the housing around the housing, wherein the valve housing extends through the plug passage with an annular passage in between, and the valve housing. Has a first position for engaging the housing seat with the plug and closing the annular passage between them, and a second position for engaging and disengaging the housing seat from the plug and opening the annular passage between them. The beverage container according to claim 1, further comprising a valve housing. Further comprising a filling passage that is engageable with and through the plug and a filling nozzle with a stop in the filling passage, the stop being engageable with and at the end of the valve housing. The beverage container according to claim 2, wherein the valve housing is held in the second position where the filling nozzle is engaged with the stopper. The valve housing is a threaded post at the end of the valve housing that extends from the plug and is screwable to the adjustment cylinder at the second end of the adjustment cylinder. The beverage container of claim 2, wherein the adjusting cylinder comprises a threaded post, which holds the valve housing in the first position when engaged with the threaded post. The beverage container according to claim 1, wherein the piston spring has two consecutive spring constants, and the piston spring is at least one of a composite coil spring and a double coil spring. An adjustment cylinder that is open to the atmosphere at the first end and open to the headspace at the second end,
A piston that is slidable in the adjustment cylinder and has a piston seal,
A valve rod extending from the second end of the adjustment cylinder, wherein the piston is engaged with the valve rod at a pressure difference between the headspace and the atmosphere or less and the headspace. And the valve stem that is engaged and disengaged from the valve stem by a pressure difference greater than or equal to the preselected pressure difference between the engine and the atmosphere.
A pressurized carbon dioxide source comprising an elongated cartridge having a first end and a second end within the beverage container, wherein the second end of the elongated cartridge has a port through it. Pressurized carbon dioxide source and
An inlet that communicates fluid with the pressurized gas supply source, an outlet that communicates fluidly with a closed interior, a valve element engaged by the valve rod, a valve seat, and the valve element so as to contact the valve seat. A regulating valve with a valve spring urging the valve element, the valve element being displaced from the valve seat against the urging of the valve spring by the piston engaged with the valve rod. With a regulating valve
A valve rod passage, the valve rod extending in the valve rod passage, the adjusting valve at one end of the valve rod passage, and the other end of the valve rod passage being sealed. The pressurized carbon dioxide source is filled with liquid carbon dioxide, and the valve rod defines and flows through a restricted annular passage in the valve rod passage. A beverage container defining a closed interior, comprising a valve bar passage for evaporating the liquid carbon dioxide. An adjustment cylinder that is open to the atmosphere at the first end and open to the headspace at the second end,
A piston that is slidable in the adjustment cylinder and has a piston seal,
A valve rod extending from the second end of the adjustment cylinder, wherein the piston is engaged with the valve rod at a pressure difference between the headspace and the atmosphere or less and the headspace. And the valve stem that is engaged and disengaged from the valve stem by a pressure difference greater than or equal to the preselected pressure difference between the engine and the atmosphere.
A pressurized carbon dioxide source comprising an elongated cartridge having a first end and a second end within the beverage container, wherein the second end of the elongated cartridge has a port through it. Pressurized carbon dioxide source and
An inlet that communicates fluid with the pressurized gas supply source, an outlet that communicates fluidly with a closed interior, a valve element engaged by the valve rod, a valve seat, and the valve element so as to contact the valve seat. A regulating valve with a valve spring urging the valve element, the valve element being displaced from the valve seat against the urging of the valve spring by the piston engaged with the valve rod. With a regulating valve
A plug passing through the second end of the elongated cartridge, provided with a plug passage through it.
A valve housing provided with a housing seat and a valve bar passage through the housing around the housing, wherein the valve housing extends through the plug passage with an annular passage in between, and the valve housing. Has a first position for engaging the housing seat with the plug and closing the annular passage between them, and a second position for engaging and disengaging the housing seat from the plug and opening the annular passage between them. A beverage container with a valve housing that defines a sealed interior. Further comprising a filling passage that is engageable with and through the plug and a filling nozzle with a stop in the filling passage, the stop being engageable with and at the end of the valve housing. The beverage container of claim 7, wherein the valve housing is held in the second position where the filling nozzle is engaged with the stopper. The valve housing is a threaded post at the end of the valve housing that extends from the plug and is screwable to the adjustment cylinder at the second end of the adjustment cylinder. 7. The beverage container of claim 7, comprising a threaded post, wherein the adjusting cylinder holds the valve housing in the first position when engaged with the threaded post. The beverage of claim 6, further comprising a stopper through the second end of the elongated cartridge, the valve bar passage extending through it, and the regulating valve in the elongated canister. container.

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