Adapter

Abstract

An adapter includes a body having an interior space forming an annular sealed space around a valve of a gas tank when the valve of the gas tank is inserted into the interior space, the valve having at least one external port, an opening transverse to a longitudinal axis of the valve, and a plunger having an external surface for actuating the valve, the plunger having an external surface facing away from the valve when the valve is actuated. The outer surface is located outside the annular sealed space, and wherein the adapter further comprises at least one channel configured to direct pressurized gas from a filling port of a canister filling machine to the annular sealed space through one or more transverse channels oriented transverse to a longitudinal axis of the valve.

Description

[0001] This application is a divisional application of the Chinese patent application with application number 202080023394.6 and name “Carbonating Machine and Gas Tank for Carbonating Machine” (based on the international patent application with international application date of January 1, 2020 and international application number PCT / IL2020 / 050002, which entered the Chinese national stage on September 22, 2021). Technical Field

[0002] The present invention relates to a carbonating machine, and more particularly to a carbonating machine and a gas cylinder for the carbonating machine. Background Art

[0003] Carbonators are commonly used in homes, offices, cafeterias, and other locations. A typical carbonator can be operated to inject carbon dioxide into water or other liquid in a bottle that can be attached to the carbonator. Other types of carbonators can be configured to dispense carbonated beverages into cups or other containers.

[0004] The carbon dioxide gas that is injected into the liquid to carbonate the liquid is typically provided in a can of compressed or liquefied gas. The carbonator includes a user-operable mechanism for releasing the gas from the cylinder and directing the gas into the liquid to be carbonated. Typically, operation of the gas release mechanism causes the mechanism to open the valve of the cylinder. When the gas canister is installed in the carbonator, a valve head including the valve is connected to the gas canister connector of the carbonator.

[0005] When the gas of the cylinder has become empty, the empty cylinder can be replaced with a full cylinder. Such replacement is usually performed by the user of the carbonation machine. For example, the valve head of the cylinder can be provided with an external male thread that can be connected to the gas tank connector by screwing into the internal thread of the socket of the connector. Summary of the invention

[0006] Thus, a carbonation machine according to an embodiment of the present invention is provided, which includes: a carbonation head; a retainer; and an actuating mechanism, the retainer being configured to retain a gas tank, the retainer including a connector having a socket, the socket including a seal and a retaining mechanism, the seal having at least one lateral opening to enable fluid flow between one or more lateral directional ports of a valve of the tank to the socket, thereby enabling fluid flow between the valve and a conduit of the retainer while preventing gas from leaking from the fluid flow, the retaining mechanism being configured to retain a lateral protrusion from the tank after the valve is inserted into the socket so that the valve is retained in the socket; the actuating mechanism is configured to operate the valve to release gas from the tank when inserted into the socket, so that the gas can flow to the carbonation head through the above-mentioned conduit.

[0007] Furthermore, according to one embodiment of the invention, the seal comprises two gaskets, and the transverse opening comprises a gap between the two gaskets.

[0008] Furthermore, according to an embodiment of the invention, each of the two gaskets is shaped in the form of an O-ring having a flat surface.

[0009] Furthermore, according to one embodiment of the present invention, each of the two washers has a U-shaped cross-section such that the openings of the two washers face each other.

[0010] Furthermore, according to one embodiment of the present invention, the seal comprises a single gasket having one or more openings.

[0011] Furthermore, according to one embodiment of the present invention, the gasket has a U-shaped cross section.

[0012] Furthermore, according to one embodiment of the present invention, the opening of the U-shaped gasket faces inwards, and the opening is located on the outwardly facing convex surface of the gasket.

[0013] Furthermore, according to one embodiment of the present invention, the opening of the U-shaped gasket faces outward, and the opening is located on the inwardly facing convex surface of the gasket.

[0014] In addition, according to one embodiment of the present invention, the retaining mechanism includes a plurality of teeth that can slide outward to enable insertion of a lateral protrusion of the valve and can slide inward to prevent the lateral protrusion from passing through the teeth and being removed, wherein a release mechanism that allows the valve to be removed from the socket is configured to retract the teeth outward to allow the lateral protrusion to pass through.

[0015] In addition, according to one embodiment of the present invention, the retaining mechanism includes a yoke having a non-circular opening, the lateral protrusion includes a non-circular lateral protrusion, the opening is configured to allow the lateral protrusion to pass when the non-circular lateral protrusion is aligned with the opening, and is configured to prevent the non-circular lateral protrusion from passing when the tank is rotated so that the non-circular lateral protrusion is not aligned with the opening.

[0016] Furthermore, according to one embodiment of the present invention, the carbonator includes a yoke and a handle, the yoke being configured to support a lateral protrusion, the handle being able to be raised so that the lateral protrusion is placed on the yoke, the handle being connected to the yoke by an articulated lever mechanism so that when the handle is lowered, the yoke raises the valve to insert the valve into the socket.

[0017] Furthermore, according to one embodiment of the present invention, the handle comprises a cover configured to cover at least a portion of the can when the handle is lowered.

[0018] Furthermore, in accordance with one embodiment of the present invention, the base of the carbonator includes an opening for placing a can, wherein a portion of the floor of the opening is elevated to tilt the can into an orientation aligned with the socket when the can is placed in the opening.

[0019] Furthermore, according to one embodiment of the present invention, the carbonator includes a cradle that can be tilted outwardly to allow a can to be inserted into the cradle, the cradle being configured to insert the valve into the socket when rotated inwardly.

[0020] Furthermore, according to one embodiment of the present invention, the carbonator includes a platform for uprightly supporting the can and configured to lift the can when rotated to insert the valve into the socket.

[0021] According to one embodiment of the present invention, there is also provided a tank for connection to a carbonator, the tank being configured to hold pressurized gas or liquefied gas for causing the carbonator to carbonate a liquid, the tank comprising a valve configured to hold the gas in the tank when closed and to provide fluid communication between the tank and the carbonator or a gas source when opened, the valve comprising: a body comprising a tank port oriented at one end along a longitudinal axis of the body, and the one end being configured to be inserted into the tank, the body further comprising at least two external ports opening transversely to the longitudinal axis and spaced substantially equidistantly about the longitudinal axis; a valve core that is slidable along the longitudinal axis and that allows the external port and the tank port to be slidable when in an open position. The valve core is configured to prevent fluid communication between the external ports and the tank port when in a closed position farther from the valve port than an open position; an elastic recovery structure configured to apply a restoring force to the valve core to maintain the valve core in a closed position; a plunger having an external surface exposed to the outside of the body and configured to slide the valve core from the closed position to the open position when an inward thrust that overcomes the restoring force is applied to the plunger; and a gasket configured to isolate the external surface of the plunger from the fluid flow path between the external port and the tank port.

[0022] Furthermore, according to one embodiment of the present invention, the gasket has a U-shaped cross section, and the opening of the gasket is oriented toward the can.

[0023] Furthermore, according to one embodiment of the invention, the external port is oriented substantially perpendicular to the longitudinal axis.

[0024] According to one embodiment of the present invention, there is also provided a valve for closing and opening a gas tank, the valve comprising: a body, comprising a tank port oriented at one end along the longitudinal axis of the body, the one end being configured to be inserted into the tank, and the body further comprising at least two external ports, opening transversely to the longitudinal axis and being substantially equidistantly spaced around the longitudinal axis; a valve core, the valve core being able to slide along the longitudinal axis, and when in an open position, the valve core allowing fluid communication between the external port and the tank port so that fluid flows into the tank through the at least two external ports, or passes through the at least two external ports The at least two external ports flow out of the tank, and when in a closed position farther from the valve port than an open position, the valve core prevents fluid communication between the external ports and the tank port; an elastic recovery structure configured to apply a restoring force to the valve core to maintain the valve core in a closed position; a plunger having an external surface that is exposed to the outside of the body and configured to slide the valve core from the closed position to the open position when an inward thrust that overcomes the restoring force is applied to the plunger; and a gasket configured to fluidly isolate the external surface of the plunger from a fluid flow path between the external port and the tank port.

[0025] Furthermore, according to one embodiment of the present invention, the gasket has a U-shaped cross section, and the opening of the gasket is oriented toward the can.

[0026] According to one embodiment of the present invention, an adapter is also provided, which includes: an opening and at least one fluid channel, the opening being shaped to allow a valve of a gas tank to be inserted, the gas tank being configured to hold pressurized gas or liquefied gas for carbonating liquids, the valve including a tank port oriented along the longitudinal axis of a main body of the valve at one end configured to be inserted into the tank, at least one external port opened laterally, and a gasket, the gasket being configured to isolate the external surface fluid of a plunger of the valve, the plunger being configured to allow fluid communication between at least one external port and the tank port when an inward thrust that overcomes the restoring force is applied to the plunger; at least one channel being configured to guide pressurized gas from a longitudinally oriented filling port of a tank filling system to one or more transverse channels that are fluidly connected to at least one external port of the valve inserted into the opening.

[0027] Furthermore, according to one embodiment of the invention, the valve comprises means allowing attachment of the adapter to a filling head of a filling system.

[0028] Furthermore, in accordance with one embodiment of the present invention, the at least one channel includes at least one transversely oriented channel configured to be in fluid communication with the fill port when the adapter is attached to the fill head.

[0029] Furthermore, according to one embodiment of the invention, the adapter comprises means enabling attachment of the adapter to the valve, the distal end of the adapter being configured to be connected to a filling head of a filling system.

[0030] Furthermore, according to one embodiment of the present invention, the at least one channel comprises a longitudinally oriented channel at the distal end, the longitudinally oriented channel being configured to be in fluid communication with the fill port when the distal end is connected to the fill head. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to better understand the present invention and appreciate the practical application of the present invention, the following drawings are provided and referenced below. It should be noted that the drawings are provided only as examples and in no way limit the scope of the present invention. The same parts are represented by the same reference numerals.

[0032] Figure 1 is a schematic cross-sectional view of an embodiment of a gas tank valve.

[0033] Figure 2 for Figure 1 Schematic exploded view of a gas tank valve shown.

[0034] Figure 3A When the valve is closed Figure 1 A schematic cross-sectional view of a gas tank valve is shown.

[0035] Figure 3B When the valve is open Figure 1 A schematic cross-sectional view of a gas tank valve is shown.

[0036] Figure 4A is a schematic cross-section of a connector to a gas tank valve having a transversely oriented external port, the connector including a pair of solid gaskets.

[0037] Figure 4B Schematically shows Figure 4A Gasket for connector shown.

[0038] Figure 4C is a schematic cross section of a connector to a gas tank valve having a transversely oriented external port, the connector comprising a pair of gaskets having a U-shaped cross section.

[0039] Figure 4D Schematically shows Figure 4C Gasket for connector shown.

[0040] Figure 5A is a schematic cross section of a connector to a gas tank valve having a transversely oriented external opening, the connector comprising an inwardly bent gasket.

[0041] Figure 5B Schematically shows Figure 5A Gasket for connector shown.

[0042] Figure 5Cis a schematic cross section of a connector to a gas tank valve having a transversely oriented internal opening, the connector comprising an outwardly bent gasket.

[0043] Figure 5D Schematically shows Figure 5C Gasket for connector shown.

[0044] Figure 6 A gas tank and a gas tank valve having a circular protruding disc are schematically shown.

[0045] Fig. 7A Shown for maintaining Figure 6 Schematic cross section of a snap-on tank holder for a gas tank is shown.

[0046] Figure 7B Schematic diagram showing the insertion of the tank into Fig. 7A In the snap-on can holder shown.

[0047] Figure 7C Schematic diagram showing the tank from Fig. 7A Snap-on can holder shown removed.

[0048] Fig. 8A A gas tank and a gas tank valve having a non-circular lateral protrusion are schematically shown.

[0049] Figure 8B Schematically shows the Fig. 8A The gas canister is shown inserted into the canister holder of the carbonator.

[0050] Figure 8C Schematically shows the locking Figure 8B A gas canister is shown in a canister holder.

[0051] Fig. 9A An embodiment of a carbonator having a can holder with a closable lid configured to raise a can into position when closed is schematically shown.

[0052] Fig. 9B Schematically shows Fig. 9A Detail of the lifting mechanism of the can holder shown.

[0053] Fig. 9C When the lid is closed Fig. 9B A schematic cross-sectional view of a can holder is shown.

[0054] Fig. 10A Schematically illustrated is a can holder of a carbonator having a tiltable can cradle configured to raise the can into position when closed.

[0055] Fig. 10BWhen the tank cradle is fully inserted Fig. 10A A schematic cross-sectional view of a can holder is shown.

[0056] Fig.11A Schematically illustrated is a tank holder including a base configured to raise a gas tank into position when rotated, the tank holder being shown in a configuration enabling insertion and removal of a tank.

[0057] Fig. 11B Schematically shows the configuration when the tank is locked into the operating position Fig.11A Can holder shown.

[0058] Fig. 12A An embodiment of a carbonator having a can holder with a handle that is raised to enable placement of a gas can is schematically shown.

[0059] Fig. 12B Schematic diagram showing the placement of the tank Fig. 12A in the can holder shown.

[0060] Fig. 12C For placing the can inside the holder Fig. 12B A schematic cross-sectional view of a can holder is shown.

[0061] Fig.12D Schematically shows Fig. 12C The lifting mechanism of the can holder is shown.

[0062] Fig.12E Schematically shows Fig. 12B An embodiment of a base for a carbonator is shown, the base being configured to tilt the can valve into the yoke after the can is inserted into the base.

[0063] Fig.13A Schematic showing the handle being lowered to insert a gas can into a carbonator Fig. 12A Carbonator shown.

[0064] Fig. 13B Schematically shows the insertion into Fig.13A The canister in the carbonator is shown.

[0065] Fig. 13C To insert into Fig. 13B A schematic cross-sectional view of a tank in a carbonator is shown.

[0066] Fig.14A A filling head adapter capable of connecting a gas tank valve having a transversely oriented external port to a filling head of a tank filling system is schematically shown.

[0067] Fig. 14B Schematically shows Fig.14A A view of a tank valve adapter is shown, illustrating the side of the adapter into which the tank valve may be inserted.

[0068] Fig. 14C for Fig.14A A schematic cross-sectional view of a tank valve adapter is shown.

[0069] Fig.14D Schematically shows the incorporation of Fig.14A The tank valve adapter shown is for a tank filling machine.

[0070] Fig.14E for Fig.14D A schematic side view of a can filling machine is shown.

[0071] Fig.15A A tank valve adapter is schematically shown for placement on a tank valve having a laterally oriented external port to enable the tank valve to be connected to a filling head of a tank filling system.

[0072] Fig. 15B for Fig.15A A schematic cross section of a tank valve adapter is shown. DETAILED DESCRIPTION

[0073] In the following detailed description, many specific details are set forth in order to provide a thorough understanding of the present invention. However, those of ordinary skill in the art will appreciate that the present invention can be implemented without these specific details. In other instances, well-known methods, procedures, components, modules, units and / or circuits are not described in detail to avoid obscuring the present invention.

[0074] Although embodiments of the present invention are not limited in this regard, discussions using terms such as, for example, "processing", "calculating", "computing", "determining", "determining", "analyzing", "checking", etc. may refer to the operation and / or processing of a computer, a computing platform, a computing system, or other electronic computing device, which manipulates and / or converts data represented as physical (e.g., electronic) quantities within a computer's registers and / or memory into other data similarly represented as physical quantities within a non-transitory storage medium (e.g., memory) that can store instructions to perform the operation and / or processing. Although embodiments of the present invention are not limited in this regard, the terms "multiple" and "plurality" used herein may include, for example, "multiple" or "two or more". Throughout the specification, the terms "multiple", "plurality" may be used to describe two or more components, devices, elements, units, parameters, etc. Unless explicitly stated, the method embodiments described herein are not limited to a particular order or sequence. In addition, some of the described method embodiments or elements thereof may occur or be performed synchronously, at the same time point, or simultaneously. As used herein, the conjunction "or" is to be construed as inclusive (any or all of the stated options) unless otherwise indicated.

[0075] According to one embodiment of the present invention, a tank holder of a carbonation machine or a tank holder of a tank filling system used with a carbonation machine for filling a gas tank is configured to enable a valve of a gas tank to be linearly inserted into a socket of the tank holder so that a gas (e.g., carbon dioxide) can flow between the gas tank and a machine or system including the tank holder. Similarly, the holder is configured to enable the valve to be linearly removed from the socket. As used herein, linear insertion refers to insertion and connection to the socket, which does not include multiple rotations of the tank to screw a thread on the gas tank (e.g., on the valve) into the thread of the holder or socket.

[0076] For example, the carbonator may be operated to open a valve of a gas tank to release gas from the tank. The carbonator includes an arrangement of one or more conduits configured such that the released gas flows to a carbonating head of the carbonator. A bottle or other container of a liquid such as water may be attached to the carbonating head such that the released gas enters the liquid and may carbonate the liquid.

[0077] In this way, the insertion or replacement of the gas canister may be facilitated. The facilitation of the insertion or removal of the canister may enable an unskilled user to quickly and simply replace the canister without the risk of over-tightening or otherwise damaging the seal between the canister holder and the canister.

[0078] In one embodiment, the tank holder can be configured to manually (or mechanically assisted) snap fit one end of the tank, typically one end including a valve operable to release gas (e.g., carbon dioxide) from the tank (or to enable filling of the tank from a gas source). For example, a slidable or retractable protrusion or tooth on the tank holder can be configured to engage one or more corresponding protrusions from the tank. In other embodiments, insertion can include inserting through an opening when the tank is oriented in one orientation (e.g., with a non-circular protrusion on the tank aligned with a corresponding non-circular opening on the tank holder), and then rotating the tank to another orientation to retain the tank to the tank holder.

[0079] Alternatively or additionally, the tank holder or a portion of a carbonator (tank filling system) associated with the tank holder may include a tank insertion mechanism that couples the tank insertion mechanism to a mechanism for connecting a valve of the tank to a connector of the tank holder.

[0080] For example, the tank insertion mechanism may include a handle (e.g., acting as a door or lid in some cases) that closes the tank after the projection of the tank is placed in the yoke. Closing the handle may lift the yoke and projection, thereby inserting the valve into the connector. In another embodiment, the tank may be placed in a tiltable cradle when the cradle is tilted outward. The cradle is tilted inward to an upright orientation, the tank may be lifted and the valve may be inserted into the connector. In another embodiment, the tank may be placed (e.g., upright) on a base. An operating mechanism (e.g., a rotating base) may lift the tank so that the valve may be inserted into the connector.

[0081] A gas canister valve configured to be inserted into a carbonator using an insertion motion (e.g., without the need to rotate the gas canister multiple times to tighten the valve into the canister holder of the carbonator) can be designed to avoid generating a thrust that tends to separate the canister valve from the connector of the machine. Thus, for example, in the case where the ports for releasing gas are directed transversely to the valve periphery and are substantially equidistantly spaced around the valve periphery (e.g., two ports on substantially opposite sides), the valve can be designed to generate minimal (e.g., approximately zero) thrust in a direction away from the connector.

[0082] When the valve is connected to the canister holder of the carbonator, the mechanism of the carbonator can be operated to release gas from the canister. The released gas can flow to the carbonator head to carbonate the liquid contents of a bottle or other container connected to the carbonator head or otherwise configured to enable gas injection into the liquid.

[0083] Similarly, the gas tank valve is configured to be able to connect the valve to the tank holder of the filling head of the tank filling system. When connected to the filling head, the tank filling system can be operated to fill the tank with pressurized gas or liquefied gas.

[0084] The proximal (e.g., connection of the gas can valve to a carbonator or filling system) end of the body of the gas can valve is configured to connect to a can holder. The longitudinal axis of the gas can valve is considered to be the axis passing through the gas can valve along the direction of movement of the valve's actuation mechanism (usually in the form of a slidable poppet configured to slide along the longitudinal axis).

[0085] The distal end of the gas tank valve can be inserted into and attached to the gas tank (e.g., by threading, welding, or other means). The distal end includes an internal tank port that can be inserted into the tank and leads to the tank.

[0086] The body of the gas tank valve also includes two or more external ports that open to the valve transverse to the longitudinal axis (e.g., each oriented at an angle of at least 80° to the direction of connection to the tank holder, and typically at an angle of at least 90°) and are spaced at approximately equal angular intervals around (the longitudinal axis of) the tank body (e.g., two external ports that are generally on opposite sides of the tank body). The external ports are configured to allow gas to escape from the tank when the gas release mechanism of the valve is actuated (e.g., by causing the valve core to move distally within the valve) and the valve is opened. When the valve is opened and the gas tank valve is connected to the tank holder of the filling system, it is possible to enable the tank to be filled with pressurized gas or liquefied gas through the external ports.

[0087] The laterally equally spaced locations of the external ports can direct any gas escaping from the tank, whether by intentional operation of the gas release mechanism or otherwise, in equally spaced lateral directions. Thus, lateral thrust generated by the release of gas through one of the external ports can be opposed by thrust generated by the release of gas through the other external port.

[0088] The lateral equidistant spacing arrangement of the external ports can be advantageous compared to a typical arrangement in which the ports release gas in a longitudinal direction. With longitudinally arranged ports, the released gas can generate a thrust that tends to push the tank away from its connection. Therefore, with such longitudinally arranged ports, it is necessary to include a connection that screws the valve into a socket with a thread. The thrust generated by releasing gas through one or more lateral ports will not generate a force that tends to separate the gas tank from the tank holder because it is perpendicular to the direction of insertion or removal of the gas tank of the gas tank holder. Therefore, the tank holder may include a snap-on or other arrangement that does not include a socket with a thread. Therefore, the connection and removal of a tank and a gas valve with a lateral port can be simpler than the connection and removal of a tank and a valve with a longitudinally arranged port.

[0089] Typically, the valve can be opened or closed by sliding the valve core along the longitudinal axis of the valve. Typically, when the valve core slides away from the tank holder distally, the valve opens so that fluid communication can be achieved between the interior and exterior ports of the tank through the tank port in the body of the valve. Conversely, when the valve core slides proximally toward the tank holder, the valve closes so that fluid communication between the exterior port and the interior of the tank is blocked. For example, the proximal end of the valve core can be pressed against a sealing gasket to prevent fluid communication between the tank port and the exterior port. The valve is opened to allow a fluid source (e.g., of a tank filling system) to flow into the tank via the exterior port, or to flow out of the tank (e.g., to a carbonation machine) via the tank port and the exterior port.

[0090] One or more types of sealing structures can be included in the gas tank valve to prevent gas from flowing around the plunger. For example, the gasket surrounding the plunger can be U-shaped in cross-section. The opening of the U-shape can be oriented toward the interior of the tank. Therefore, when the plunger is moved to release gas from the tank, the pressurized gas can fill the opening of the U-shaped gasket, thereby pushing the walls of the gasket outward, strengthening the seal around the plunger, and preventing the released gas from escaping around the plunger.

[0091] A plunger for distally sliding a valve core of a valve is configured to be accessible to an actuating mechanism of, for example, a carbonating machine or a canister filling system. Typically, the plunger includes an external surface that can be contacted and operated by an actuating mechanism that is located, for example, in a canister holder of a carbonating machine of a canister filling system. The proximal end of the plunger may include an external surface that forms a button. The proximal end of the plunger may be located within an indentation at the proximal surface of a gas canister valve. The indentation may prevent accidental depression of the plunger, for example, by having a surface that is wider than the indentation.

[0092] When a thrust is applied to the proximal end of the plunger, the plunger can, for example, move distally along an axis that is colinear with the longitudinal axis of the valve core. The distal end of the plunger can be configured to contact and press against the proximal end of the valve core when the plunger is pushed distally. Therefore, pushing a button at the proximal end of the plunger can push the valve core distally to open the gas tank valve. For example, the actuating mechanism of the carbonation machine or filling system can include an extendable rod or other component that can press a button at the proximal end of the gas tank valve. When the actuating mechanism applies a force at least as great as a preset force, the valve core can slide sufficiently distally to enable a fluid connection between the tank port and the external port.

[0093] The plunger can be produced as a separate component from the valve core. Alternatively, the plunger can be manufactured as an integral component of the valve core, for example forming the proximal end of the valve core.

[0094] Typically, the gas tank valve also includes a restoring structure to maintain the valve core in a (e.g., proximal) closed position when a sufficiently large force is not applied to the external surface. For example, a spring may be configured to push the valve core proximally unless the force of the spring is overcome by a distal thrust applied to the valve core, e.g., by a plunger.

[0095] The gas tank valve may include structure that enables and facilitates retention of the gas tank by, for example, a tank holder of a carbonator or tank filling system. For example, the gas tank valve may include one or more protrusions that may fit into mating structures (e.g., one or more slots or grooves) of the tank holder. When the gas tank is held by the tank holder, the tank holder may be configured to connect an external port of the gas tank valve to, for example, one or more conduits associated with the tank holder.

[0096] For example, a lateral protrusion in the form of a disc may extend laterally outward, for example at or near the connection of the gas tank valve to the gas tank. The disc may be configured to be inserted into a corresponding yoke of the tank holder. The disc may be inserted as a gasket between the gas tank valve and the tank or may be manufactured as an integral part of the gas tank valve or the tank.

[0097] For example, the yoke may include a U-shaped groove, the width of which is sufficient to accommodate the thickness of the disc. When the tank holder does not hold the gas tank and the yoke is empty, the disc of the gas tank can slide into the groove of the yoke. When the disc is fully inserted into the yoke, the closing mechanism of the tank holder can be operated to insert the proximal end of the gas tank into a mating connector associated with the tank holder (e.g., integral with the tank holder or adjacent to the tank holder). For example, the closing mechanism may include a handle, a lever, or other force transmission structure to lift the proximal end of the gas tank valve into a sealed socket of a carbonation machine or tank filling system. The operation of the closing mechanism may include closing a handle (e.g., acting as a cover, door, or shutter), such as a handle that can at least partially cover the gas cylinder when it is connected to a connector.

[0098] Alternatively or additionally, the yoke may comprise two or more teeth or arms which are extendable to grip the disc when the gas tank valve is inserted into the connector.

[0099] Alternatively or additionally, the disc may be asymmetric. The asymmetry may allow the asymmetric disc to be inserted into the yoke through the matching asymmetric opening when the asymmetric disc is aligned with the asymmetric opening. The asymmetric disc may be held in the yoke by rotating the asymmetric disc (e.g., 90°) to a direction in which the asymmetric disc is no longer aligned with the asymmetric opening. In this case, the closing mechanism may be configured to rotate the gas cylinder (e.g., 90°) to hold the asymmetric disc in the yoke of the tank holder in addition to inserting the proximal end of the gas tank valve into the sealed connector.

[0100] A connector that enables gas to flow between a gas tank valve to a carbonation machine, a tank filling system, or other device may include a socket that includes a sealing structure. The sealing structure may be configured to enable fluid communication between an external port of the gas tank valve and a gas conduit of the connector while preventing leakage of gas in other directions. For example, the sealing structure may include two or more gaskets between which gas may flow between a conduit of the connector and an external port of the gas tank valve. Alternatively or additionally, the gasket of the sealing structure may include one or more openings through which gas may flow. The gasket may have a U-shape that may expand when filled with pressurized gas to further enhance the seal.

[0101] In some cases, a filling head adapter can be attached to a filling head of a tank filling system so that a gas tank provided with a gas tank valve having a transversely oriented external port can be filled. For example, the filling head adapter can provide a fluid path between a filling port of the tank filling system coaxial with the longitudinal axis of the gas tank and a transversely positioned external port of the gas tank valve. The fluid path may include one or more grooves, channels, tubes, or other structures to enable pressurized gas (or liquefied gas) to flow from the filling port fluid of the tank filling system to the external port of the gas tank valve. For example, the filling head adapter can be attached to the filling head by bolts or otherwise.

[0102] In some cases, a tank valve adapter can be attached to a gas tank valve having a transversely oriented external port. Adapting the tank valve adapter to the gas tank valve can enable filling of the gas tank by inserting the tank valve adapter into a filling head of a tank filling system having an axial (longitudinal) filling port. The tank valve adapter is configured to provide a fluid path between a filling port of the tank filling system that is coaxial with the longitudinal axis of the gas tank and a transversely positioned external port of the gas tank valve. Typically, the fluid path provided by the tank valve adapter includes a system of closed tubes or channels between the filling port and the external port of the gas tank valve.

[0103] Figure 1 is a schematic cross-sectional view of an embodiment of a gas tank valve. Figure 2 for Figure 1 Schematic exploded view of a gas tank valve shown. Figure 3A When the valve is closed Figure 1 A schematic cross-sectional view of a gas tank valve is shown.

[0104] The internal components of the gas tank valve 10 are enclosed within the valve body 12. Typically, the valve body 12 is made of brass or another metal. The end of the valve body 12 including the tank port 14 is configured to be inserted into the gas tank 46. The joint between the valve bodies 12 can be sealed by the gasket 34. Gas can flow from the internal chamber 48 of the gas tank 46 into the central passage 15 via the tank port 14 and the gas filter 36.

[0105] In order to enable a controlled release of gas from the gas tank 46 in the event of overpressure, the gas tank 46 is provided with a bursting disk 40. The bursting disk 40 is held in place between the bursting disk plug 38 and the valve body 12. In the event of an overpressure sufficient to rupture the bursting disk 40, the gas in the central channel 15 can flow outwards through the bursting disk plug 38 after the bursting disk 40 and escape to the ambient air via the gas escape opening 39 in the bursting disk plug 38.

[0106] In some cases, a disc 44 can be retained between the valve body 12 and the gas canister 46. The disc 44 can be configured to fit into a corresponding groove or slot of the canister holder. Alternatively or in addition to the disc 44, one or more protrusions integral with the valve body 12 can extend laterally beyond the valve body 12 to engage a mating structure of the canister holder. Alternatively or additionally, the valve body 12 can include one or more indentations configured to engage one or more mating protrusions of the canister holder.

[0107] When the gas tank valve 10 is inserted into the gas tank 46 and the gas tank valve 10 is open, gas from the gas tank 46 can be released through the pair of oppositely oriented external ports 16. In this way, the net thrust generated by releasing gas through the pair of external ports 16 can be close to zero.

[0108] In some embodiments, the gas tank valve may include more than two oppositely oriented external ports 16. For example, additional pairs of external ports 16 may be oriented to evenly distribute the external ports 16 around the circumference of the valve body 12.

[0109] As shown, when the gas tank valve 10 is closed, the valve core 18 is pressed by the spring 20 against the valve seat 24 of the insert 22 (e.g., in the form of a circular ridge extending from the surface of the insert). Thus, all fluid connections between the internal chamber 48 of the gas tank 46 and the external port 16 are blocked.

[0110] The gas tank valve 10 can be opened by applying a thrust to the outer surface 26a of the plunger 26. The outer surface 26a is exposed to and mechanically accessible to (e.g., can be pushed by) an actuator, such as a carbonator or tank filling system, to which the gas tank valve 10 is connected. Typically, the thrust can be applied by an actuating rod that is located within or otherwise associated with the tank holder. The outer surface 26a can be located within an indentation 27 at the outer end of the valve body 12. The location of the outer surface 26a within the indentation 27 can prevent accidental or unintentional application of a thrust to the plunger 26.

[0111] Applying a thrust to the outer surface 26a pushes the plunger 26 toward the valve core 18. When the thrust applied to the outer surface 26a is sufficient to overcome the reaction force exerted by the spring 20 and by the gas pressure in the gas tank 46, the end 26b of the plunger 26 can push the valve core 18 away from the valve seat 24.

[0112] When the valve core 18 is no longer pressed against the valve seat 24, gas can begin to flow between the valve core 18 and the insert 22. For example, during carbonation, assume that the internal chamber 48 of the gas tank 46 is filled with pressurized gas or liquefied gas. When it is able to flow between the valve core 18 and the insert 22, the gas can flow outward around the sealed shell 30 through the groove 23 of the insert 22 to the external port 16. The gas released through the external port 16 can then be directed by a connector to a carbonation head, in which the gas is injected into the liquid for carbonation. On the other hand, when the external port 16 is connected to a filling system, the pressurized gas or liquefied gas can be injected into the external port 16 to flow inward around the sealed shell 30 through the groove 23 of the insert 22, and flow between the insert 22 and the valve core 18 through the central channel 15 to the internal chamber 48 of the gas tank 46.

[0113] Gas can be prevented from escaping from the gas tank valve 10 around the plunger 26 (e.g., in a typical prior art tank, the external port is along the longitudinal axis of the gas tank valve 10) by the sealing gasket 28. In the illustrated embodiment, the sealing gasket 28 has an approximately U-shaped cross-section with an opening facing toward the insert 22 and the gas tank 46. The sealing gasket 28 is held in place by the sealing housing 30 and the insert retainer 32. Therefore, gas pressure from the direction of the gas tank 46 can tend to widen the opening of the sealing gasket 28, thereby enhancing the seal to prevent gas from escaping around the plunger 26. Alternatively or additionally, a sealing gasket having other types of cross-sections (e.g., V-shaped, W-shaped, or another shape that can enhance the seal with gas pressure, or other shapes) or a sealing gasket held in place by other mechanisms can be used.

[0114] Figure 3B When the valve is open Figure 1A schematic cross-sectional view of a gas tank valve is shown.

[0115] In the illustrated embodiment, the valve core 18 has been pushed into the gas tank valve 10 and has been separated from the valve seat 24 to form a gap 50 between the valve core 18 and the insert 22. Thus, gas can flow through the gap 50 between the central passage 15 and the external port 16. Gas is prevented from flowing around the plunger 26, for example, between the plunger 26 and the seal housing 30, by the sealing gasket 28. Thus, gas is forced to flow between the central passage 15 and the external port 16 in either direction via a path that includes the groove 23 and the space between the seal housing 30 and the valve housing 12.

[0116] The gas tank valve 10 can be configured to be inserted into one or more types of connectors that do not include threads for holding the gas tank valve 10 and the gas tank 46 to a tank holder. In addition, the connector for connecting to the gas tank valve 10 can be configured to direct gas to or from the laterally oriented external port 16. Thus, the connector can be configured to enable gas to flow laterally between the external port 16 and a gas conduit (e.g., a carbonation head to a carbonator or a gas source from a tank filling system) while preventing the escape of gas in other directions.

[0117] The connector can be configured to apply sufficiently low friction to the gas tank valve 10 to enable the gas tank valve 10 to be inserted into the connector and to enable the gas tank valve 10 to be removed from the connector. On the other hand, the connector is configured to enable gas to flow between a conduit (e.g., of a carbonator or tank filling system) and an external port 16 when the gas tank valve 10 is inserted into the connector.

[0118] Figure 4A is a schematic cross-section of a connector to a gas tank valve having a transversely oriented external port, the connector including a pair of solid gaskets. Figure 4B Schematically shows Figure 4A The gasket of the connector is shown in FIG.

[0119] The tank connector 52 is configured to enable insertion of the gas tank valve 10. The tank connector 52 is also configured to enable fluid connection between the external port 16 of the gas tank valve 10 and the gas conduit 54 of the tank connector 52. For example, in a tank connector 52 of a carbonator, the gas conduit 54 can connect the tank connector 52 to the carbonation head of the carbonator. In a tank connector 52 of a tank filling system, the gas conduit 54 can connect the tank connector 52 to a gas source of the tank filling system. Although a single gas conduit 54 is shown, other embodiments of the tank connector can include two or more gas conduits 54.

[0120] The tank connector 52 includes a socket 51 including a sealing structure in the form of a pair of solid gaskets 56 with a gap 58 between the two solid gaskets 56. In the embodiment shown, each solid gasket 56 is in the form of an O-ring having a flat annular surface defining the gap 58. In other embodiments, each gasket may be hollow, or include a full or partial annular bore, or may have an outer shape that is rectangular or other shape different from the shape of the illustrated embodiment.

[0121] In the illustrated embodiment, gas may flow between the external port 16 of the gas tank valve 10 and the gas conduit 54 of the tank connector 52 via the gap 58 between the solid gaskets 56 .

[0122] Figure 4C is a schematic cross section of a connector to a gas tank valve having a transversely oriented external port, the connector comprising a pair of gaskets having a U-shaped cross section. Figure 4D Schematically shows Figure 4C Gasket for connector shown.

[0123] The tank connector 53 is configured to be insertable into the gas tank valve 10 and to enable fluid connection between the external port 16 of the gas tank valve 10 and the gas conduit 54 of the tank connector 53 .

[0124] The tank connector 53 includes a socket 51 that includes a sealing structure in the form of a pair of U-shaped gaskets 60. Each U-shaped gasket 60 has a U-shaped cross-section around an opening 60a. In the illustrated embodiment, one of the U-shaped gaskets 60 is inverted relative to the other so that the openings 60a of the U-shaped gaskets 60 are oriented to face each other. The U-shaped gaskets 60 are separated by a gap 58.

[0125] In the illustrated embodiment, gas can flow between the external port 16 of the gas tank valve 10 and the gas conduit 54 via the gap 58 between the U-shaped gaskets 60. The gas can fill the opening 60a. Therefore, the gas pressure can tend to expand the U-shaped gasket 60 and open the opening 60a, thereby pressing the U-shaped gasket against the surrounding structure to further prevent leakage of gas.

[0126] Figure 5A is a schematic cross section of a connector to a gas tank valve having a transversely oriented external opening, the connector comprising an inwardly bent gasket. Figure 5B Schematically shows Figure 5A The gasket of the connector is shown in FIG.

[0127] The tank connector 61 is configured to enable the gas tank valve 10 to be inserted and to enable fluid connection between the external port 16 of the gas tank valve 10 and the gas conduit 54 of the tank connector 61 .

[0128] The tank connector 61 includes a socket 51 that includes a sealing structure in the form of a single U-shaped (or C-shaped) gasket 62. The U-shaped gasket 62 has a U-shaped cross-section around an opening 62a. The opening 62a of the U-shaped gasket 62 opens inwardly, toward the axis of symmetry of the U-shaped gasket 62. The outwardly convex surface of the U-shaped gasket 60 is perforated by external openings 64. In the embodiment shown, the U-shaped gasket 62 includes four equally spaced external openings 64. In other embodiments, the U-shaped gasket 62 may include less than or more than four external openings 64.

[0129] In the illustrated embodiment, gas can flow between the external port 16 of the gas tank valve 10 and the gas conduit 54 of the tank connector 61 via the external opening 64 in the U-shaped gasket 62. The gas can fill the opening 62a. Therefore, the gas pressure can tend to expand the U-shaped gasket 62 to further open the opening 62a to press the U-shaped gasket against the surrounding structure to further prevent leakage of gas.

[0130] Figure 5C is a schematic cross section of a connector to a gas tank valve having a transversely oriented internal opening, the connector comprising an outwardly bent gasket. Figure 5D Schematically shows Figure 5C Gasket for connector shown.

[0131] The tank connector 65 is configured to enable insertion of the gas tank valve 10 and enable fluid connection between the external port 16 of the gas tank valve 10 and the gas conduit 54 of the tank connector 65 .

[0132] The tank connector 65 includes a socket 51 that includes a sealing structure in the form of a single U-shaped (or C-shaped) gasket 66. The U-shaped gasket 66 has a U-shaped cross-section around an opening 66a. The opening 66a of the U-shaped gasket 66 opens outwardly, away from the axis of symmetry of the U-shaped gasket 66. The inwardly convex surface of the U-shaped gasket 66 is perforated by an internal opening 68. In the illustrated embodiment, the U-shaped gasket 66 includes four equally spaced internal openings 68. In other embodiments, the U-shaped gasket 66 may include less than or more than four internal openings 68.

[0133] In the illustrated embodiment, gas can flow between the external port 16 of the gas tank valve 10 and the gas conduit 54 of the tank connector 65 via the internal opening 68 in the U-shaped gasket 66. The gas can fill the opening 66a. Therefore, the gas pressure can tend to expand the U-shaped gasket 66 to further open the opening 66a to press the U-shaped gasket against the surrounding structure to further prevent leakage of gas.

[0134] The tank holder may be provided with a structure to hold an inserted gas tank 46. Specifically, the structure may be configured to engage a structure protruding outwardly from the gas tank 46, the gas tank valve 10, or both. The outwardly protruding structure may include a circular or other shaped disc 44. In some cases, the disc 44 may be configured in the form of a gasket that is held between the gas tank valve 10 and the gas tank 46 when the gas tank valve 10 is attached to the gas tank 46, typically when it is screwed to the gas tank 46.

[0135] Figure 6 A gas tank and a gas tank valve having a circular protruding disc are schematically shown.

[0136] In the illustrated embodiment, the disk 44 is circular and is retained between the gas tank 46 and the gas tank valve 10 .

[0137] Fig. 7A Shown for maintaining Figure 6 Schematic cross section of a snap-on tank holder for a gas tank is shown.

[0138] In the illustrated embodiment, the tank holder 70 is configured to enable insertion of a gas tank by pressing the outer end of the gas tank valve 10 (the end distal to the gas tank 46) upward toward the tank connector 76 and into the tank connector. Fig. 7A The mid-tank connector 76 is shown as having a similar form to the tank connector 61 (with the U-shaped gasket 62), but the tank connector 76 may have a similar form to any of the tank connectors described above or another type of tank connector.

[0139] The tank holder 70 includes at least two slidable teeth 71. A resilient spring or other element (not shown) is configured to push each slidable tooth 71 inwardly toward each other. Each slidable tooth 71 has a ramp surface 71a facing the outer tank holder 70. Therefore, when the gas tank 46 with the disk 44 is pushed into the tank holder 70 (upward in FIG. 7), the disk 44 can push against the ramp surface 71a and make each slidable tooth 71 slide outwardly. The outward sliding of the slidable teeth 71 can enable the gas tank valve 10 to be inserted into the tank connector 76. When the disk 44 has been inserted through the slidable teeth 71, the resilient element can push the slidable teeth 71 inwardly. The inward positioning of the slidable teeth 71 can prevent the outward movement of the disk 44, thereby retaining the gas tank 46 to the tank holder 70. The positioning of the slidable teeth 71 can be selected so that when the slidable teeth 71 slide inwardly after the disc 44 passes, the gas tank valve 10 can be fully inserted into the tank connector 76. The circular shape of the disc 44 can enable the gas tank 46 to be inserted without the need to hold the gas tank 46 in a specific orientation (about the longitudinal axis of the gas).

[0140] Figure 7BSchematic diagram showing the insertion of the tank into Fig. 7A In the snap-on can holder shown.

[0141] In the illustrated embodiment, the gas tank valve 10 of the gas tank 46 can be inserted into the tank connector 76 by moving the gas tank valve 10 toward the tank connector 76 using the upward motion 67a. As the gas tank valve 10 is inserted into the tank connector 76, the slidable teeth 71 can be pushed outward by the disc 44. When the gas tank valve 10 is fully inserted into the tank connector 76, the slidable teeth 71 can snap inwardly under the disc 44 to secure the disc 44 in the tank connector 70, thereby securing the gas tank 46 in the tank connector 70.

[0142] In the illustrated embodiment, the canister holder base 73 (e.g., of a carbonator or canister filling system) includes an opening 75. Thus, the gas canister 46 can be inserted such that the longitudinal axes of the gas canister 46 and the gas canister valve 10 are aligned with the upward movement 67a, with the lower end of the gas canister 46 extending downwardly through the opening 75. Thus, the gas canister 46 need only be translated parallel to the upward movement 67a (e.g., without rotating the gas canister 46) in order to insert the gas canister valve 10 into the canister connector 76.

[0143] Figure 7C Schematic diagram showing the tank from Fig. 7A Snap-on can holder shown removed.

[0144] In the illustrated embodiment, the disc 44 is secured to the tank holder 70 by the slidable teeth 71. To enable removal of the gas tank 46 from the tank holder 70, the release mechanism 69 can be operated to cause outward retraction of the slidable teeth 71 to enable downward movement of the disc 44 past the slidable teeth 71. For example, the release mechanism 69 can include a button, a lever, or other user-operable component that, when operated, causes the slidable teeth 71 to retract outward. When the slidable teeth 71 are retracted, the gas tank 46 can be removed from the tank holder 70 by moving the gas tank valve 10 away from the tank holder 76 with a downward motion 67b.

[0145] The tank holder 70 may include a withdrawal mechanism that may be operated by a user, such as by pressing a button or lever, to withdraw the slidable teeth 71 to enable the gas tank 46 to be removed from the tank holder 70 .

[0146] Alternatively or additionally, the mechanism for retaining the gas canister 46 in the canister holder may be configured to cooperate with a non-circular asymmetric disc that is elongated along one axis.

[0147] Fig. 8A A gas tank and a gas tank valve having a non-circular lateral protrusion are schematically shown.

[0148] In the embodiment shown, the non-circular transverse protrusion 72 is held between the gas tank 46 and the gas tank valve 10. In the embodiment shown, the non-circular transverse protrusion 72 has the form of a double segmented circle. In other embodiments, the non-circular transverse protrusion may have another non-circular shape.

[0149] Figure 8B Schematically shows Fig. 8A The gas canister is shown inserted into the canister holder of the carbonator.

[0150] In the embodiment shown, the non-circular transverse protrusion 72 is in the form of a double segmented circle. In other embodiments, the non-circular transverse protrusion 72 can have any form that is not circularly symmetrical. For example, the non-circular transverse protrusion 72 can have a polygonal, oval, or other non-circular shape.

[0151] In the illustrated embodiment, the carbonator 63 includes a carbonation head 81 and a canister holder 74. The canister holder 74 includes a yoke 78 having an elongated opening 77. When the length dimension of the non-circular lateral protrusion 72 on the gas canister 46 is aligned with the elongated opening 77 of the yoke 78, the gas canister 46 can be moved in a linear motion 79a until the gas canister valve 10 is inserted into the canister connector 76.

[0152] When the gas tank valve 10 has been inserted into the tank connector 76, the gas tank 46 can be rotated about its axis in a rotational motion 79b (or in an opposite rotation). The rotation of the gas tank 46 can rotate the non-circular lateral protrusion 72 by a sufficient angle so that the non-circular lateral protrusion 72 is no longer aligned with the elongated opening 77. When so rotated, the yoke 78 can prevent the outward movement of the non-circular lateral protrusion 72 (e.g., in a direction opposite to the linear motion 79a). Thus, the gas tank 46 and the gas tank valve 10 can be locked in the tank holder 74 and the tank connector 76.

[0153] In other embodiments, such as embodiments where the non-circular lateral projection has another shape, the opening of the yoke can be shaped to match the shape of the non-circular lateral projection. Thus, when the non-circular lateral projection is aligned with the opening, the non-circular lateral projection can be inserted into the opening. After insertion, the gas tank 46 and the non-circular lateral projection can be rotated so that the opening and the non-circular lateral projection are no longer aligned. Thus, after such rotation, the non-circular lateral projection and the attached gas tank 46 cannot be removed from the yoke.

[0154] Figure 8C Schematically shows the locking Figure 8B A gas canister is shown in a canister holder.

[0155] like Figure 8CAs shown, the non-circular lateral protrusion 72 has been rotated approximately 90° in a rotational motion 79b (or its inverse) such that the length dimension of the non-circular lateral protrusion 72 is approximately perpendicular to the length dimension of the elongated opening 77. Thereby, the gas canister 46 is locked within the canister holder 74. In order to enable the gas canister 46 to be removed from the canister holder 74, the gas canister 46 can be rotated until the length dimension of the non-circular lateral protrusion is aligned with the length dimension of the elongated opening 77. When so aligned, the gas canister 46 can be removed from the canister holder 74 by pulling the gas canister 46 in a direction opposite to the direction of the linear motion 79a.

[0156] In some embodiments, the tank holder can be configured to lift the gas tank 46 when the gas tank 46 is enclosed in the tank holder. The closure mechanism can include, for example, a handle (e.g., acting as a door or other cover), a tiltable cradle, or a base, which in some embodiments can at least partially cover the cavity into which the gas tank 46 is inserted, a tiltable cradle into which the gas tank 46 can be inserted, or a base on which the gas tank 46 can stand.

[0157] Fig. 9A Schematically illustrated is a carbonator having a can holder with a closable lid configured to raise the can into position when closed. Fig. 9B Schematically shows Fig. 9A Detail of the lifting mechanism of the can holder shown.

[0158] When a gas canister 46 with a disc 44 (which may be circular, or may have a rectangular or other polygonal shape, an oval, or another shape) is inserted into the canister holder 90 of the carbonator 63, the disc 44 may fit over the yoke 94 and may be held by the yoke 94. The canister cover 92 is connected to the yoke 94 by a hinged lever mechanism 96 (or by another mechanism including, for example, one or more hinges, levers, gears, pulleys, or other mechanical components, linking the movement of the yoke 94 to the movement of the canister cover 92). Thus, when the canister cover 92 is rotated downward and inward (e.g., toward the gas canister 46) to cover the gas canister 46, the yoke 94 is lifted toward the canister connector 76. When the canister cover 92 is fully closed, the gas canister valve 10 may be fully inserted into the canister connector 76. When fully inserted, the user operates a gas release control 97 (e.g., a button shown in the embodiment, or another user-operable control) to cause the actuating mechanism to operate the gas canister valve 10 to release the gas from the gas canister 46.

[0159] Fig. 9C When the lid is closed Fig. 9B A schematic cross-sectional view of a can holder is shown.

[0160] With the tank cover 92 fully closed, the gas tank valve 10 can be fully inserted into the tank connector 76. In the illustrated embodiment, the actuation rod 98 is positioned adjacent to the plunger 26 of the gas tank valve 10. In the illustrated embodiment, when the gas release control 97 is pressed, the actuation mechanism pushes the actuation rod 98 against the plunger 26. Continued pushing of the actuation rod 98 and the plunger 26 can open the gas tank valve 10 to release gas from the gas tank 46 through the external port into the gas conduit of the tank connector 76.

[0161] Fig. 10A Schematically illustrated is a can holder of a carbonator having a tiltable can cradle configured to raise the can into position when closed.

[0162] When the tank cradle 102 is tilted outward, a gas tank 46 with a disc 44 (which may be circular, or may have a rectangular or other polygonal shape, an oval shape, or another shape) may be inserted into or removed from the tank cradle 102 of the tank holder 100 of the carbonator 63, as shown. The disc 44 of the inserted gas tank 46 may fit over the yoke 94. It may be noted that in the illustrated embodiment, the function of the disc 44 and the yoke 94 may be to guide the gas tank 46 to the correct position on the tank cradle 102. In other embodiments, the tank cradle 102, the gas tank 46, or both may have other structures for guiding the placement of the gas tank 46 in the tank cradle 102.

[0163] The tank cradle 102 is connected to the fixed structure of the tank holder 100 by an articulated lever mechanism 104 (or by another mechanism including, for example, one or more hinges, levers, gears, pulleys, or other mechanical components). Thus, when the gas tank 46 is inserted into the tank cradle 102 and the tank cradle 102 is rotated inwardly (so as to tilt the gas tank 46 upward until the gas tank 46 stands upright), the tank cradle 102 and the gas tank 46 are lifted toward the tank connector 76.

[0164] Fig. 10B When the tank cradle is fully inserted Fig. 10A A schematic cross-sectional view of a can holder is shown.

[0165] As shown, the tank cradle 102 and gas tank 46 have been tilted inwardly and erected. The gas tank valve 10 is fully inserted into the tank connector 76 to enable operation of the gas tank valve 10 by operating the gas release control 97, the actuation mechanism 99 and the actuation rod 98.

[0166] Fig.11A Schematically illustrated is a tank holder including a base configured to raise a gas tank into position when rotated, the tank holder being shown in a configuration enabling insertion and removal of a tank.

[0167] The base 118 of the tank holder 110 (e.g., of a carbonator or tank filling system) includes a tank support platform 112. When in the configuration shown, the tank support platform 112 is low enough so that the gas tank 46 and its gas tank valve 10 can fit between the tank support platform 112 and the tank connector 76. In this configuration, the gas tank 46 can be inserted into or removed from the tank holder 110.

[0168] The tank support platform 112 can be rotated to lift the gas tank 46 so that the gas tank valve 10 is inserted into the tank connector 76. In the illustrated embodiment, the tank support platform 112 can be rotated so that the adjustment tab 114 on the tank support platform 112 climbs the inclined surface 116 on the base 118. Therefore, rotating the tank support platform 112 so that the adjustment tab 114 rotates toward the uppermost portion of the inclined surface 116 can lift the gas tank 46 and the gas tank valve 10 so that the gas tank valve 10 is inserted into the tank connector 76.

[0169] Fig. 11B Schematically shows the configuration when the tank is locked into the operating position Fig.11A Can holder shown.

[0170] As in the illustrated embodiment, when the gas tank valve 10 is inserted into the tank connector 76, the space between the tank support platform 112 and the tank holder 110 has been reduced, so that the gas tank 46 cannot be removed from the tank holder 110. Rotating the gas tank 46 so that the adjustment tab 114 is rotated back toward the uppermost portion of the ramp 116 can lower the tank support platform 112 so that the space between the tank support platform 112 and the tank connector 76 is large enough to enable the gas tank 46 and the gas tank valve 10 to be removed from the tank connector 76. In some cases, the base 118 may include a structure to prevent accidental or unintentional lowering of the tank support platform 112. For example, the base 118 may include a latch or other structure configured to hold the adjustment tab 114 at the uppermost portion of the ramp 116 until a release (e.g., unlatching) mechanism is operated.

[0171] The tank holder 110 may include one or more other structures to secure the inserted gas tank 46. For example, when the gas tank 46 includes a disk 44, the tank holder 110 may include slidable teeth 71 or other structures to hold the disk in place. When the gas tank 46 includes a non-circular lateral protrusion 72, the tank holder 110 may include a yoke 78 having an elongated opening 77. The tank holder 110 may include other types of securing structures.

[0172] Fig. 12A An embodiment of a carbonator having a can holder with a handle that is raised to enable insertion of a gas canister is schematically shown.

[0173] The handle 122 of the carbonator 120 can be raised or lowered by rotating about the axis 127. In the carbonator 120, the yoke 94 is connected by a lifting mechanism ( Fig.12D 1 (see Figure 10 ) is coupled to the handle 122. When the handle 122 is raised, as in the embodiment shown, the yoke 94 is lowered away from the tank connector 76. The space between the yoke 94 and the tank connector 76 is sufficient to enable the gas tank valve 10 to be placed between the yoke 94 and the tank connector 76.

[0174] Fig. 12B Schematic diagram showing the placement of the tank Fig. 12A in the can holder shown.

[0175] As shown, the opening 124 in the base 128 of the carbonator 120 enables the bottom end of the gas can 46 (e.g., the end of the gas can 46 opposite the end to which the gas can valve 10 is attached) to be placed into the opening 124. Rotating the gas can valve 10 toward the yoke 94 (as represented by arrow 123) can place the disc 44 (or other lateral protrusion from the gas can 46) onto the yoke 94.

[0176] Opening 124 may be configured to align a gas tank 46 placed into opening 124 with tank connector 76. For example, aligning may include orienting the axis of gas tank 46 parallel to the axis of tank connector 76 and laterally aligning the axes so that gas tank 46 is coaxial with tank connector 76.

[0177] Fig. 12C For a tank having a tank placed inside Fig. 12B A schematic cross-sectional view of a can holder is shown.

[0178] In the illustrated embodiment, the partially raised floor area 124a of the opening 124 is designed to present a rough floor surface 129 to allow the gas tank 46 to independently tilt toward the yoke and rest on the inner radius of the yoke, thereby aligning with the socket of the tank connector 76.

[0179] The raised floor area 124a covers a portion of the space (e.g., arc segment) of the opening 124. The remaining portion of the opening 124 may include the lower area 124b. In the illustrated embodiment, the opening 124 does not have a floor in the lower area 124b. In other embodiments, the raised floor area 124a may be raised above the floor of the lower area 124b.

[0180] The area of ​​the raised floor region 124a is shaped and sized so that the center of gravity of the gas tank 46 is above the lower region 124b (generally along or near the tank cylinder axis 131). Therefore, when the gas tank 46 is placed in the opening 124, gravity can rotate the gas tank 46 to lean against the inner radius of the yoke and align with the tank connector 76 (e.g., the socket of the tank connector 76).

[0181] It may be noted that while an opening 124 having a raised floor area 124a is shown and described in connection with the carbonator 120, the raised floor area 124a may be incorporated into other embodiments (such as those shown in Figures 8, 9, and 11).

[0182] Fig.12D Schematically shows Fig. 12C The lifting mechanism of the can holder is shown. Fig.12E Schematically shows Fig. 12B An embodiment of a base for a carbonator is shown, the base being configured to tilt the cartridge valve into the yoke after the cartridge is inserted into the base.

[0183] As shown, the disc 44 of the gas canister 46 rests on the yoke 94. The pin 125 is attached to the handle 122 and inserted into the groove 121 on the yoke 94. The pin 125 is rotated outward from the carbonator 120 by lowering the handle 122 by rotating about the axis 127. The groove 121 is curved (as shown in the embodiment) or inclined or otherwise non-horizontal and non-vertical, so that the outer end of the groove 121 is lower than the inner end of the groove 121. Therefore, the outward rotation of the pin 125 is due to the lowering of the handle 122, which rotates the pin 125 outwardly, applying an upward force to the groove 121 and the yoke 94. Therefore, lowering the handle 122 can raise the yoke 94 and the gas canister 46 placed on the yoke 94 toward the canister connector 76.

[0184] Fig.13A Schematic showing the handle being lowered to insert a gas can into a carbonator Fig. 12A Carbonator shown.

[0185] As shown, the handle 122 has been fully lowered. Thus, the yoke 94 is fully raised toward the tank connector 76.

[0186] Fig. 13B Schematically shows the insertion into Fig.13A The canister in the carbonator is shown. Fig. 13C To insert into Fig. 13B A schematic cross-sectional view of a tank in a carbonator is shown.

[0187] As shown, the handle 122 has been lowered over the gas tank 46. In some cases, the handle 122 can provide further shielding or protection for the connection between the gas tank valve 10 and the tank connector 76 when the handle 122 is fully lowered.

[0188] As the handle 122 is lowered, the hinged lever mechanism 96 lifts the gas tank valve 10 into the tank connector 76. Thus, operating the gas release controller 97 and the actuation mechanism 99 can operate the gas tank valve 10 to release gas from the gas tank 46 to flow to the carbonation head of the carbonator 120.

[0189] After the gas canister 46 is inserted into the carbonator 120, the canister lid 126 may be inserted into the base 128 and closed.

[0190] Fig.14A A filling head adapter is schematically shown which enables a gas tank valve having a transversely oriented external port to be connected to a filling head of a tank filling system. Fig. 14B Schematically shows Fig.14A A view of a tank valve adapter is shown, illustrating the side of the adapter into which the tank valve may be inserted. Fig. 14C for Fig.14A A schematic cross-sectional view of a tank valve adapter is shown.

[0191] The fill head adapter 150 can be installed on the fill head of the tank filling system. For example, the fill head can be designed to be inserted into a tank valve in which the external port of the valve is oriented along or parallel to the longitudinal axis of the tank before installing the fill head adapter 150. The fill head adapter 150 provides a fluid path between the longitudinally positioned fill port on the fill head installed on the fill head and the transversely oriented external port 16 of the tank valve.

[0192] For example, the filling head adapter 150 may include a mounting structure 156 (e.g., a hole, threads, or one or more brackets, protrusions, or other structures in the embodiment shown) to enable or facilitate mounting the filling head adapter 150 to the filling head. In the embodiment shown, mounting the filling head adapter 150 to the filling head may include inserting a bolt, screw, rivet, clamp, or other mounting element through the mounting structure 156 and into the mounting head. A sealing structure (e.g., an O-ring, a sealing disk, or other sealing structure) may be installed between the filling head adapter 150 and the filling head, for example, in a sealer groove 154.

[0193] When the filling head adapter 150 is mounted on the filling head, a fluid path can be formed between the filling port of the filling head and the external port of the can valve inserted into the internal space 160 of the filling head adapter 150. When the can valve is inserted into the internal space 160, a valve seal 166 (e.g., an O-ring as shown, or a sealing disk or other sealing structure) can prevent gas from leaking into the space within the internal space 160 that is in fluid contact with the plunger 26 of the can valve. The can limit structure 161 can promote the proper positioning of the gas can 46 and the can valve in the internal space 160. In some cases, a can seal 168 (e.g., an O-ring or other type of seal) can prevent or inhibit gas from leaking to the outside of the internal space 160 between the gas can 46 and the filling head adapter 150.

[0194] When the tank valve is inserted into the internal space 160 of the filling head adapter 150, the pressurized gas (e.g., in a gaseous or liquefied form) can be released from the tank filling system via the longitudinally positioned filling port. The transverse channel 152 of the filling head adapter 150 can be positioned to be connected to the filling port fluid. The seal between the transverse channel 152 and the filling head (e.g., in the sealer groove 154) can prevent or hinder gas leakage, or other flows except along the transverse channel 152. The released pressurized gas can flow laterally from the filling port along the transverse channel 152 to one or more longitudinal channels 162 at the end of one or more transverse channels 152, for example. The pressurized gas can flow into the filling head adapter 150 via each longitudinal channel 162 and flow to the radial channel 164, each radial channel 164 is radially oriented or otherwise transversely oriented in the tank valve adapter 150. The pressurized gas can flow inwardly in each radial channel 164 to the external port 16 of the tank valve. The valve seal 166 and the canister seal 168 may facilitate the flow of pressurized gas from the radial passage 164 into the exterior port 16 .

[0195] The indentations 158 can facilitate, for example, retaining the filling head adapter 150 when mounted to the filling head. The bores 159 in the indentations 158 can also facilitate punching, machining, or otherwise forming the radial passages 164.

[0196] In some embodiments, a tube may form a fluid connection between a fill port of a fill head to bore 159 of fill head adapter 150 .

[0197] Fig.14D Schematically shows the incorporation of Fig.14A The tank valve adapter shown is for a tank filling machine. Fig.14E for Fig.14D A schematic side view of a can filling machine is shown.

[0198] The tank filling machine 180 can be a component of a tank filling system. The tank filling machine 180 is configured to fill a gas tank 46, and the gas tank valve 10 of the gas tank 46 is inserted into a filling head adapter 150 with pressurized (e.g., liquefied) gas from a gas source (not shown). For example, the tank filling machine 180 can be controllable by an automatic (e.g., computerized) control system or manually. The gas can flow to the filling head adapter 150 via the filling head 184 in a controlled manner. For example, the filling head 184 can include various regulation and control units, such as electronically controllable valves (e.g., solenoid valves), pressure sensors, or other control units. The tank filling machine 180 can include, for example, a monitoring and control component 186 including a shutoff valve and a mass flow meter.

[0199] The tank filling machine 180 can include a tank loading assembly 182. In the illustrated embodiment, the tank loading assembly 182 includes a linear conveyor 188 configured to convey an upright (e.g., substantially vertical with the gas tank valve 10 oriented upward) gas tank 46 along a linear track to a position below the filling head adapter 150 and the filling head. When the gas tank 46 is positioned below the filling head adapter 150, a linear plunger 190 can lift the gas tank 46 so that the gas tank valve 10 is inserted into the filling head adapter 150. In other embodiments, the orientation of at least some components of the tank filling machine and the tank loading assembly can be reversed. In this case, the loading assembly can be configured to lower the inverted gas tank 46 to insert the gas tank valve 10 into the filling head adapter 150 below the gas tank 46. In other embodiments, the gas tank valve can be pushed into the filling head adapter 150 horizontally or in another direction.

[0200] Fig.15A A tank valve adapter is schematically shown for placement on a tank valve having a laterally oriented external port to enable the tank valve to be connected to a filling head of a tank filling system. Fig. 15B for Fig.15A A schematic cross section of a tank valve adapter is shown.

[0201] The tank valve adapter 170 is configured to be placed over and attached to a tank valve that includes a transversely oriented external port 16. The tank valve adapter 170 can then enable filling of the gas tank 46, to which the tank valve can be attached via a filling head having a filling port oriented longitudinally.

[0202] In the illustrated embodiment, the tank valve adapter 170 includes a body 171 and is assembled from two parts, namely the tank valve adapter 151 and the filling head adapter 172. In the illustrated embodiment, the tank valve adapter 151 and the filling head adapter 172 are attached to each other by threads. The seal between the longitudinal channel 174 of the filling head adapter 172 and the transverse channel 152 of the tank valve adapter 151 can be provided by a seal (e.g., an O-ring, a gasket or other sealing structure) placed in the sealer groove 154. In other embodiments, the filling head adapter 172 can be attached to the tank valve adapter 151 by welding or welding, or by using one or more bolts, screws, pins, clamps, adhesives, or other attachment structures. The indentation 178 can facilitate assembly or handling during use.

[0203] The filling head adapter 172 is shaped so that the tank valve adapter 170 can be adapted to the filling head of the tank filling system. For example, at least the distal end (connected to the gas tank 46) of the filling head adapter 172 can be shaped to be similar to the distal end of the tank valve with a longitudinal external port at the distal end of the filling head adapter. When the tank valve adapter 170 is placed on the tank valve, the distal end of the tank valve can be adapted in the internal space 160 in the tank valve adapter 151 after being inserted through the opening 173. The valve seal 166 (such as the O-ring, sealing disc, or other sealing structure shown) can prevent the pressurized gas from leaking into the space in the internal space 160 that is in contact with the fluid of the plunger 26 of the tank valve. The tank seal 168 can prevent the pressurized gas from leaking at the joint between the two.

[0204] The tank valve adapter 151 is configured similarly to the filling head adapter 150 described above. When the tank valve adapter 170 is inserted into the filling head of the tank filling system, the longitudinal channel 174 in the filling head adapter 172 can be fluidly connected to the filling port of the filling head. Therefore, the pressurized gas can flow from the filling port through the longitudinal channel 174 to the transverse channel 152 of the tank valve adapter 151. The pressurized gas can flow to the radial channel 164 via each longitudinal channel 162 in the tank valve adapter 151, and each radial channel 164 is radially or otherwise transversely oriented in the tank valve adapter 151. The pressurized gas can flow inwardly in each radial channel 164 to the transversely oriented external port 16 of the tank valve. The valve seal 166 and the tank seal 168 can promote the flow of pressurized gas from the radial channel 164 into the external port 16.

[0205] Different embodiments are disclosed herein. The features of certain embodiments may be combined with the features of other embodiments, and therefore, certain embodiments may be a combination of the features of multiple embodiments. The foregoing description of the embodiments of the present invention has been presented for the purpose of illustration and description. It is not intended to be exhaustive or to limit the present invention to the precise form disclosed. It will be appreciated by those skilled in the art that, in view of the above teachings, many modifications, variations, substitutions, changes and equivalents are feasible. Therefore, it will be understood that the appended claims are intended to cover all such modifications and changes that fall within the true spirit of the present invention.

[0206] While certain features of the invention have been illustrated and described herein, many modifications, substitutions, changes, and equivalents will occur to those of ordinary skill in the art. It is therefore to be understood that the appended claims are intended to cover all such modifications and changes that fall within the true spirit of the invention.

Claims

1. An adapter, include: a body having an internal space, wherein when the valve of the gas cylinder is inserted into the internal space, an annular sealed space is formed around the valve of the gas cylinder, the valve having: at least one external port, the external port opening transversely to the longitudinal axis of the valve, and a plunger, the plunger having an external surface for actuating the valve, the external surface being outside the annular sealed space when the valve is actuated, and Therein, the adapter further comprises at least one passage configured to direct pressurized gas from a filling port of a tank filling machine to the annular sealed space through one or more transverse passages oriented transversely to the longitudinal axis of the valve.

2. The adapter according to claim 1, in, The adapter is configured to facilitate filling of the gas tank with the pressurized or liquefied gas while maintaining the at least one external port fixed relative to the gas tank when the valve is in an open position and when the valve is in a closed position.

3. The adapter according to claim 1, in, The at least one channel includes at least one transversely-oriented channel configured to be in fluid communication with the filling port when the adapter is attached to the filling machine.

4. The adapter according to claim 1, in, The adapter includes structure to enable attachment of the adapter to the valve, with the distal end of the adapter being configured to connect to a filling head of the can filling machine.

5. The adapter according to claim 4, in, The at least one channel includes a longitudinally-oriented channel at the distal end configured to be in fluid communication with the fill port when the distal end is connected to the fill head.

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