Patent Application
20190161336
The present invention relates to water dispensing apparatus, systems and methods of using the same. Specifically, the water dispensing apparatus comprises modular components including but not limited to an easily accessible water-heating module and a water carbonation module. The water dispensing apparatus further comprises a bracket for holding at least one of a valve and an expansion tank to a hot water tank for easy removal of the same in case of repair or replacement. Moreover, the expansion tank comprises a check valve that opens to allow heated water to flow thereinto and closes after heated water has drained therefrom.
Units are known to provide sparkling water, and for heating and cooling water and dispensing the same for users thereof. It is often desirable for a user to select whether he or she wishes to receive water having different properties, such as heated, cooled or carbonated. Typical machines for accomplishing such tasks generally include a tank for holding water and/or a tap water supply line for inputting water therein for dispensing. Oftentimes, machines utilize a tank for chilling the water and a tank for heating the water in the same machine. Moreover, machines that are known to provide carbonation to water to create sparkling water further comprise a carbonation unit comprising a holding tank for dissolving carbon dioxide in water for immediate dispensing when desired.
Typical water dispensing apparatuses often are difficult to maintain as the various components are not easily accessible. Specifically, over time, components of water dispensing apparatuses are known to contain mechanical parts that require periodic maintenance, and may further require replacement. It is often difficult to access the various components to maintain and/or make replacements. For example, dissolved minerals often build-up within components where the water passes and may frequently require replacement. Additionally, many mechanical components required periodic cleaning for optimal use. Oftentimes, it is difficult to access and remove components for periodic cleaning. A need, therefore, exists for a water dispensing apparatus having separate and accessible heating, and carbonating units. More specifically, a need exists for a water dispensing apparatus whereby the individual units, such as the separate heating, and carbonating may be easily accessible and modular so that each can be removed and replaced when necessary.
Oftentimes, water dispensing apparatuses that dispense carbonated water result in finished fluid streams in which carbon dioxide can easily separate from the water. This may result in the dispensed water tasting flat or acidic. It is commonly understood that to control the quality of the carbonated water and ensure the proper mixing of carbon dioxide and water, the water pressure and carbon dioxide pressure may be controlled, and back pressure should be applied to the fluid stream just prior to being dispensed. For many devices, a small threaded pin within the dispensing valve may be adjusted; but this is not easily accessed nor well understood by end-users. A need, therefore, exists for a water dispensing apparatus that effectively ensures proper mixing of carbon dioxide and water. Moreover, a need exists for a simple and easily accessible mechanism to allow an end user to adjust back pressure and flow rate of carbonated water dispensed.
Water dispensing apparatuses that dispense carbonated water require a connection to a pressurized carbon dioxide tank. Oftentimes, tubing from a pressurized carbon dioxide tank is connected to an inlet in the water dispensing machine, but oftentimes the carbon dioxide tank is large and difficult to manage. Some water dispensing machines utilize a relatively small pressurized carbon dioxide tank, such as a 60 L tank, that is typically connected to the apparatus. These relatively small pressurized carbon dioxide tanks require frequent replacement and are often connected via tubing to the rear of the water dispensing system or connected directly to the rear of the water dispensing system, or even under a sink. However, users are easily frustrated by these requirements for changing these smaller carbon dioxide tanks, which are also pressurized and carry warning labels.
Further, threading of the smaller carbon dioxide tanks into a regulator, which adjusts pressure to the correct amount for the water dispensing system, can be an additional frustration for users trying to replace carbon dioxide tanks on a regular basis. Moreover, when connecting to a connection point, such as a regulator, for example, on the water dispensing apparatus, it is often difficult to align the head of the carbon dioxide tank to the connector. A need, therefore, exists for water dispensing apparatuses that provide easy access for relatively small-sized carbon dioxide tanks to connect to and disconnect from the water dispensing apparatuses. In addition, a need exists for water dispensing apparatuses having easily accessible connection points for connecting the carbon dioxide tanks thereto.
Thermal expansion within hot water tank, such as in typical hot water dispensing systems, often leads to the use of an expansion chamber or overflow tank that is positioned atop a hot water tank. Typically, the expansion chamber is permanently affixed to the hot water tank by welding or other means. As water heats inside the hot water tank, it rises into the expansion chamber instead of through the dispensing faucet through one or more holes that are positioned along the outlet tubing from the hot water tank to the faucet. The holes are typically arranged in size and location to aid in pulling the water out of the expansion chamber and into the dispensing stream to the faucet due to the Venturi effect. In this manner, the expansion chamber fills and empties in an ongoing cycle.
However, water that is captured within the expansion chamber is typically never fully emptied and can become stagnant if the tanks do not easily or readily drain. This stagnant water is typically of low quality for purposes of drinking or cooking. A need, therefore, exists for water dispensing apparatuses comprising hot water expansion chambers that effectively capture hot water that overflows from a hot water tank and provides effective draining therefrom when drawn or when the overflow condition ends. More specifically, a need exists for water dispensing apparatuses that provide full draining from an overflow tank so that hot water within the overflow tank does not become stale or stagnant.
Moreover, expansion chambers are typically vented so that hot water can fill and drain easily without increasing pressure within the expansion chamber and/or creating a vacuum when drained, both conditions would prevent proper functioning of the expansion chamber. However, when hot water is drawn from the expansion chamber through the Venturi holes, air from the vents may be drawn with the hot water stream causing turbulent flow that splashes from the faucet. A need, therefore, exists for an expansion chamber whereby only hot water is withdrawn and not air. More specifically, a need exists for an expansion chamber whereby the hot water stream is continuous and smooth without turbulence caused by unwanted air.
In addition, because of the proximity of the expansion chamber to boiling water, mineral scale buildup continually occurs inside the expansion chamber. When the Venturi holes become clogged, the water system itself must typically be disposed of as service is often very difficult or hazardous due the nature of the hot water and electrical systems. A need, therefore, exists for an expansion chamber that is easily replaced in the event of scale buildup or failure. More specifically, a need exists for a modular and separable expansion chamber, and a bracket for easily removing and replacing the expansion chamber when necessary.
The present invention relates to water dispensing apparatus, systems and methods of using the same. Specifically, the water dispensing apparatus comprises modular components including but not limited to an easily accessible water heating module and a water carbonation module. The water dispensing apparatus further comprises a bracket for holding at least one of a valve and an expansion tank to a hot water tank for easy removal of the same in case of repair or replacement. Moreover, the expansion tank comprises a check valve that opens to allow heated water to flow thereinto and closes after heated water has drained therefrom.
To this end, in an embodiment of the present invention, a water dispensing apparatus is provided. The water dispensing apparatus comprises: a hot water tank for heating water comprising an outlet for withdrawing heated water from the hot water tank, wherein the outlet comprises a first water path to an expansion tank having a vent, wherein heated water flows into and out of the expansion tank through the first water path, and further wherein the first water path comprises a check valve comprising a first blocking element that opens to allow heated water to flow into the expansion tank and closes over the first water path after the heated water within the expansion tank is drained from the expansion tank through the first water path.
In an embodiment, the first blocking element floats in water.
In an embodiment, the expansion tank comprises a cavity extending from the first water path, wherein the cavity is sized to accept and allow the first blocking element to float when filled with water.
In an embodiment, the first water path comprises an aperture between the outlet and the expansion tank.
In an embodiment, the aperture comprises a seat within the expansion tank wherein the first blocking element is sized and shaped to sit within the seat.
In an embodiment, the first blocking element is spherical.
In an embodiment, the first blocking element is spherical.
In an embodiment, the first blocking element is made from a thermoplastic material.
In an embodiment, the outlet comprises a second water path to the expansion tank and a second floating element that opens to allow heated water to flow into the expansion tank and closes over the second water path after the heated water within the expansion tank is drained from the expansion tank through the second water path.
In an alternate embodiment of the present invention, a water dispensing apparatus is provided. The water dispensing apparatus comprises: a hot water tank for heating water comprising a valve inlet for filling water into the hot water tank and an outlet for withdrawing heated water from the hot water tank, wherein the outlet comprises a first water path to a removable expansion tank; a bracket slidably disposed on the hot water tank, the bracket comprising a planar portion and a first slot disposed within the planar portion, wherein the first slot engages at least one of the valve and the expansion tank, wherein sliding the bracket disengages the first slot from the at least one of the valve and the expansion tank allowing the at least one of the valve and the expansion tank to be removed from the hot water tank.
In an embodiment, the bracket comprises a handle for slidably moving the bracket on the hot water tank from an engaged position to a disengaged position.
In an embodiment, the engaged position of the bracket mates the first slot with a mating element on the at least one of the valve and the expansion tank.
In an embodiment, the bracket comprises a second slot in the planar portion, wherein the first slot engages the valve and the second slot engages the expansion tank.
In an embodiment, sliding the bracket disengages the first slot from the valve and the second slot from the expansion tank.
In an embodiment, the valve comprises first threads and the expansion tank comprises second threads, wherein the hot water tank comprises first mating threads for the first threads of the valve and the hot water tank further comprises second mating threads for the second threads of the expansion tank.
In an alternate embodiment of the present invention, a method of attaching and removing at least one of a valve and an expansion tank on a hot water tank is provided. The method comprises the steps of: providing a water dispensing apparatus comprising a hot water tank comprising a valve inlet for filling water into the hot water tank and an outlet for withdrawing heated water from the hot water tank, wherein the outlet comprises a first water path to a removable expansion tank; providing a bracket slidably disposed on the hot water tank, the bracket comprising a planar portion and a first slot disposed within the planar portion, wherein the first slot engages at least one of the valve and the expansion tank; sliding the bracket to a disengaged position causing the first slot to disengage from the at least one of the valve and the expansion tank; and removing the at least one of the valve and the expansion tank from the hot water tank.
In an embodiment, the method comprises the steps of: placing another of the at least one of the valve and the expansion tank onto the hot water tank; and sliding the bracket to an engaged position.
In an embodiment, the bracket comprises a second slot, wherein the first slot engages the valve and the second slot engages the expansion tank, and further wherein sliding the bracket to the disengaged position causes the first slot to disengage from the valve and the second slot to disengage from the expansion tank.
In an embodiment, the method further comprising the step of: removing both the valve and the expansion tank from the hot water tank when the bracket is slid to the disengaged position.
In an embodiment, the method further comprises the steps of: placing another valve and another expansion tank on the hot water tank; and sliding the bracket to an engaged position, thereby locking the valve and the expansion tank onto the hot water tank.
It is, therefore, an advantage and objective of the present invention to provide a water dispensing apparatus having separate and accessible heating, and carbonating units.
More specifically, it is an advantage and objective of the present invention to provide a water dispensing apparatus whereby the individual units, such as the separate heating and carbonating may be easily accessible and modular so that each can be removed and replaced when necessary.
Further, it is an advantage and objective of the present invention to provide a water dispensing apparatus that ensures proper mixing of carbon dioxide and water.
Specifically, it is an advantage and objective of the present invention to provide a simple and easily accessible mechanism to allow an end user to adjust back pressure and flow rate of carbonated water dispensed.
Still further, it is an advantage and objective of the present invention to provide a water dispensing apparatus that provide easy access for relatively small-sized carbon dioxide tanks to connect to and disconnect from the water dispensing machines.
Moreover, it is an advantage and objective of the present invention to provide a water dispensing apparatus having an easily accessible connection point for connecting the carbon dioxide tank thereto.
Further, it is an advantage and objective of the present invention to provide_water dispensing apparatuses comprising hot water expansion chambers that effectively capture hot water that overflows from a hot water tank and provides effective draining therefrom when drawn or when the overflow condition ends.
And, it is an advantage and objective of the present invention to provide water dispensing apparatuses that provide full draining from an overflow tank so that hot water within the overflow tank does not become stale or stagnant.
In addition, it is an advantage and objective of the present invention to provide an expansion chamber in a water dispensing apparatus whereby only hot water is withdrawn and not air.
More specifically, it is an advantage and objective of the present invention to provide an expansion chamber whereby the hot water stream is continuous and smooth without turbulence caused by unwanted air.
Moreover, it is an advantage and objective of the present invention to provide an expansion chamber that is easily replaced in the event of scale buildup or failure.
More specifically, it is an advantage and objective of the present invention to provide a modular and separable expansion chamber, and a bracket for easily removing and replacing the expansion chamber when necessary.
Additional features and advantages of the present invention are described in, and will be apparent from, the detailed description of the presently preferred embodiments and from the drawings.
The drawing figures depict one or more implementations in accord with the present concepts, by way of example only, not by way of limitations. In the figures, like reference numerals refer to the same or similar elements.
The present invention relates to water dispensing apparatus, systems and methods of using the same. Specifically, the water dispensing apparatus comprises modular components including but not limited to an easily accessible water heating module and a water carbonation module. The water dispensing apparatus further comprises a bracket for holding at least one of a valve and an expansion tank to a hot water tank for easy removal of the same in case of repair or replacement. Moreover, the expansion tank comprises a check valve that opens to allow heated water to flow thereinto and closes after heated water has drained therefrom.
Now referring in greater details to the drawings,
Referring to
The filter door 24 may further cover a USB slot 32 allowing a flash drive or other USB-enabled element to be inserted therein for upgrading software contained within a processor (not shown) within the water dispenser 10. The processor may control the touch-screen control panel and provide functionality to a user thereof, such as providing the user the ability to select different types of water dispensed therefrom, namely hot still water, cold still water, cold carbonated water, and ambient water, all of which is filtered. Moreover, the processor may control various internal elements of the water dispenser 10, such as a cold water module, a hot water module, a water carbonation module, and various related components thereto, such as a compressor, a heater, a fan, valves, and other like elements, described in more detail below. Moreover, the processor may display error messages and instructions for clearing error messages, or may further provide any other functionality or messaging apparent to one of ordinary skill in the art.
Specifically, and as described in one or more of the co-owned U.S. patents, namely, U.S. Pat. Nos. 7,861,550, 8,341,975 and 7,318,581, and as shown in
As illustrated in
Alternatively, water may flow from the primary filter 152 through optional booster pump to a fill valve 157 for filling the ice bank assembly or ice tank 158. Likewise, water may flow into the ice tank 158 through coils 159 to be chilled in the ice tank 158. Chilled water may then flow from the coils 159 into the carbonation module 54 where carbon dioxide may be added. A sparkling water valve 160 may withdraw carbonated water from carbonation module 54 for dispensing through the faucet 21. Alternatively, chilled water may flow from the coils 159 through cold valve 161 to be dispensed as non-carbonated chilled water through the faucet 21.
The faucet 21 may have a plurality of bosses (as illustrated in
Referring now to
It is desirable to control the flow rate of the sparkling water dispensed from the faucet 21 to ensure proper mixing of carbon dioxide and water. A user may adjust the position of the tapered plug within the sparkling water boss 76 to induce back pressure on the sparkling water and prevent separation of carbon dioxide from the water. A driver, such as a hex tool, may be used to turn the tapered plug 90 within the sparkling water boss 76 thereby opening or closing the boss 76 and impacting the rate of the flow of water therethrough and the back pressure induced on the sparkling water stream. The position of the tapered plug may further be adjusted via a grippable knob that may be grasped and rotated, thereby not requiring a tool for turning the same. Moreover, limits may be set on the tapered plug 90 to prevent over-turning, thereby preventing the tapered plug 90 from opening or closing too far.
Handle wings 108a, 108b may be provided to allow a user to pull and rotate the bracket 100, exposing the threaded aperture 102, thereby allowing the carbon dioxide tank 23 to be threaded thereto. Once fully threaded therein, the carbon dioxide tank 23 may be rotated via rotation of the bracket 100 to fit within enclosure 110. Door 22 may be closed over the carbon dioxide tank 23 so that the same is not visible when in use. The manifold/regulator 104 may provide a specific, regulated pressure of carbon dioxide to the carbonation module 54, as described in more detail above with respect to
Now referring to
The bracket 206 may comprise a first slotted aperture 208 and a U-shaped holding aperture 210, as illustrated in
However, when the heated water expands but is not dispensed, the expansion tank 220 may hold excess hot water therein until drawn by a user thereof through the faucet 21. Thus, hot water can expand and flow into the expansion tank 220 through openings 230a, 230b. Check balls 232a, 232b may normally sit over the openings 230a, 230b, which may have spherical seats thereon for the check balls 232a, 232b to sit on, as illustrated in
The check balls 232a, 232b, preferably made from a material less dense than water, such as a thermoplastic material, may thereby float within the cavities 234a, 234b, as illustrated by arrows 236a, 236b until the heated water is withdrawn back into the outlet 222 via openings 230a, 230b. As the hot water level drops within the expansion tank 220, the check balls 232a, 232b may reseat over the openings 230a, 230b, respectively, blocking air that may fill the expansion tank 220 via vent 240 as the hot water is withdrawn. Thus, while hot water may be withdrawn from expansion tank 220 until empty, air may thus be prevented from entering the outlet 222 due to the air being blocked by the check balls 232a, 232b, respectively, thereby preventing sputtering when the hot water is dispensed through faucet 21.
In another embodiment of the present invention illustrated in
It should be noted that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. Such changes and modifications may be made without departing from the spirit and scope of the present invention and without diminishing its attendant advantages. Further, references throughout the specification to “the invention” are nonlimiting, and it should be noted that claim limitations presented herein are not meant to describe the invention as a whole. Moreover, the invention illustratively disclosed herein suitably may be practiced in the absence of any element which is not specifically disclosed herein.
