Patent Application
20190223654
The present disclosure relates to systems and methods for dispensing beverages, such as systems and methods for dispensing servings of espresso.
Espresso is a coffee beverage brewed by forcing steam or hot water through ground coffee. Espresso is typically of thicker consistency than drip coffee, having a higher amount of dissolved solids than drip coffee per relative volume, and a serving size that is usually measured in shots. When producing a serving of espresso (called a “shot”), ground coffee is subjected to high pressure in a beverage preparation machine. This transforms the ground coffee into a firm puck. Hot water is then forced through the puck to produce the espresso, which typically flows directly from the machine into a cup. The cup with the espresso is then removed from the machine for consumption, sale, etc.
Various embodiments are depicted in the accompanying drawings for illustrative purposes, and should in no way be interpreted as limiting the scope of the embodiments. Various features of different disclosed embodiments can be combined to form additional embodiments, which are part of this disclosure.
Various beverage dispensing systems and methods are described below to illustrate various examples that may achieve one or more desired improvements. These examples are only illustrative and not intended in any way to restrict the general disclosure presented and the various aspects and features of this disclosure. The general principles described herein may be applied to embodiments and applications other than those discussed herein without departing from the spirit and scope of the disclosure. Indeed, this disclosure is not limited to the particular embodiments shown, but is instead to be accorded the widest scope consistent with the principles and features that are disclosed or suggested herein.
Although certain aspects, advantages, and features are described herein, it is not necessary that any particular embodiment include or achieve any or all of those aspects, advantages, and features. Some embodiments may not achieve the advantages described herein, but may achieve other advantages instead. Any structure, feature, or step in any embodiment can be used in place of, or in addition to, any structure, feature, or step in any other embodiment, or omitted. This disclosure contemplates all combinations of features from the various disclosed embodiments. No feature, structure, or step is essential or indispensable.
As illustrated, the system 10 can include a dispensing unit 12 and a beverage preparation machine 14, such as a machine for preparing espresso. The dispensing unit 12 can be connected with tubing 16, such as flexible or rigid piping, to enable delivery of the beverage from the beverage preparation machine 14 to the dispensing unit 12. As shown, the dispensing unit 12 can be spaced apart from the beverage preparation machine 14. For example, the dispensing unit 12 can be positioned above a counter and/or generally visible from a front side and a rear side of the counter, and the beverage preparation machine 14 can be positioned below the counter, inside a cabinet, and/or otherwise generally obscured from view from at least one of the front and rear sides. In various embodiments, the dispensing unit 12 is not received in, part of, and/or coupled directly to the beverage preparation machine 14.
The dispensing unit 12 can receive the beverage from the beverage preparation machine 14 via a fluid communication path through the tubing 16. In some embodiments, the dispensing unit 12 is configured to hold and/or dispense the beverage. For example, the dispensing unit 12 can receive a shot of espresso, hold the espresso for a period, and dispense the espresso into a cup or other vessel. In certain implementations, the dispensing unit 12 is configured to contain a single serving of a beverage, such as a single shot of espresso. In some variants, the dispensing unit 12 is configured to contain multiple servings of a beverage.
In some embodiments, the dispensing unit 12 comprises a generally elongate hollow member. The dispensing unit 12 can be open on one end and closed on the other end. For example, the dispensing unit 12 can include a hollow tube that is open on a first end 18 and closed on a second end 20. In certain implementations, such as is schematically illustrated in
As illustrated, the dispensing unit 12 can be configured to pivot about a rotation axis 22. For example, the dispensing unit 12 can be pivotally connected to a base or support member (not shown). As will be described in further detail below, such pivoting can enable the dispensing unit 12 to rotate between various operational states, such as dispensing the beverage from the dispensing unit 12 into a cup or other vessel. In the schematic shown, the rotation axis 22 is located at or near the second end 20 (e.g., bottom) of the dispensing unit 12. In some variants, the rotation point 22 is located at or near the first end 18 (e.g., top) of the dispensing unit 12. In certain implementations, the rotation point 22 is located between the first and second ends 18, 20, such as at or near the longitudinal mid-point of the dispensing unit 12. Certain embodiments are configured such that the dispensing unit 12 can rotate and can move laterally, such as in a side-to-side direction and/or a front-to-back direction on a countertop. In some embodiments, the dispensing unit 12 is connected with a linkage (not shown) that enables the dispensing unit 12 to traverse a curved trajectory. In some such embodiments, the dispensing unit 12 is able to invert (e.g., for dispensing and/or cleaning) but the path it takes is not a simple flip.
The system 10 can include one or more position sensors configured to detect the location of the dispensing unit 12. For example, the system 10 can detect when the dispensing unit 12 is in a receiving (e.g., upright) position, a dispensing position, and/or a cleaning (e.g., inverted) position. In some embodiments, the system 10 can determine whether the dispensing unit 12 is in a position to receive beverage from the beverage preparation machine 14 and/or to receive cleansing fluid from a source.
The system 10 can include a flow control device, such as a check valve 24. The check valve 24 can be located in the second end 20 of the dispensing unit 12. The check valve 24 can allow fluid to flow through the second end 20 and into the dispensing unit 12 and/or can inhibit or prevent fluid from passing out of the second end 20 of the dispensing unit 12. In certain implementations, the check valve 24 is configured to close in certain orientations of the dispensing unit 12. For example, the check valve 24 can close (e.g., due to the force of gravity acting on a movable sealing component of the check valve 24) when the dispensing unit 12 is in the upright configuration and there is less than a minimum amount of fluid pressure in the tubing 16. In certain embodiments, the check valve 24 is configured to removably couple with, and close, the second end 20 of the dispensing unit 12, as will be discussed in more detail below. In some implementations, the check valve 24 is a ball check valve, diaphragm valve, duckbill valve, or otherwise. In certain embodiments, the check valve 24 is rotatably connected with the tubing 16, such as with a rotatable coupling. This can allow the check valve 24 and the dispensing unit 12 to rotate relative to the tubing 16.
In some embodiments, the system 10 includes a pump 26, such as a peristaltic pump. The pump 26 can encourage the beverage from the beverage preparation machine 14 to the dispensing unit 12. Some embodiments do not include a pump 26. For example, in certain variants, pressure that occurs during the beverage preparation process (e.g., the pressure that occurs during the preparation of espresso) is used to encourage the beverage from the beverage preparation machine 14 to the dispensing unit 12 without the need for a pump 26.
As also illustrated, certain embodiments include a control valve 28, such as a three-way valve. The control valve 28 can be adapted to switch between a first position and a second position. In the first position, the control valve 28 can permit beverage to flow into the dispensing unit 12. In the second position, the control valve 28 can permit cleansing fluid (e.g., potable water) to flow into the dispensing unit 12. In some implementations, the flow of cleansing fluid flushes or otherwise cleanses some or all of the tubing 16, control valve 28, check valve 24, container 12, and/or other components of the system 10. In some implementations, the control valve 28 is an electronic valve, such as a solenoid valve.
As shown, certain embodiments include a controller 30, such as a processor and a memory. The controller 30 can be electrically coupled with various other components of the system 10, such as through one or more cables or wires 32. In some embodiment, the controller 130 communicates with one or more other components wirelessly, such as via wi-fi, Bluetooth®, etc. The controller 30 can control aspects of certain components of the system 10. For example, the controller 30 can control operation of the control valve 28 and/or pump 26. In some embodiments, the controller 30 can instruct the beverage preparation machine 14 to prepare a type of beverage, size of beverage, strength of beverage, etc. In some embodiments, the controller 30 and the beverage preparation machine 14 can communicate bi-directionally. For example, the controller 30 can send instructions to the beverage preparation machine 14 and can receive information from the beverage preparation machine 14, such as status information (e.g., number of espresso shots produced in a certain period, bean hopper status, etc.), health information (e.g., fault codes and/or descriptions), etc.
As shown, the dispensing unit 12 can receive the beverage in the upright configuration (e.g., an orientation in which a longitudinal axis of the dispensing unit 12 is generally parallel with vertical). For example, the beverage can enter the dispensing unit 12 through the second end 20, which is the bottom end of the dispensing unit 12 in the upright configuration, and the first end 18 can be maintained higher than (e.g., directly above) the second end 20. In some implementations, the beverage is introduced into the dispensing unit 12 through a lower or lowermost portion of the dispensing unit 12. During the course of the beverage being introduced into the dispensing unit 12, the top surface of the beverage in the dispensing unit 12 can be seen to progress upwardly towards the top of the dispensing unit 12. This can provide a visual appearance of the beverage welling-up, growing, and/or rising within the dispensing unit 12. In some embodiments, introducing the beverage into the dispensing unit 12 while the dispensing unit 12 is in the upright configuration can allow the beverage to be maintained in the dispensing unit 12 for a period of time and/or for inspection activities to occur. For example, collecting the beverage in the upright dispensing unit 12 can allow for the beverage to be pre-made and ready for use at a later time, such as in response to a subsequent customer order. As another example, collecting the beverage in the upright dispensing unit 12 can allow inspection of beverage characteristics (e.g., color, opacity, foam, etc.), the total volume of the beverage, or other characteristics. In some variants, the beverage enters the dispensing unit 12 when the dispensing unit is in a non-upright configuration. For example, the beverage can be introduced into the dispensing unit 12 when the first end 18 is lower than the second end 20. This can allow the beverage to flow out of and/or be immediately be discharged from the dispensing unit 12.
As shown in
As mentioned above, the dispensing unit 12 can be rotated to facilitate pouring the beverage from the dispensing unit 12 into a cup C or other vessel. For example, as shown in
In some embodiments, the system 10 includes a drain or catch basin, which can collect splashes and spills that occur during the course of pouring. The drain or catch basin can be covered with a grate, on which the cup or other vessel is placed to receive the beverage. The grate can include indicia (e.g., words or symbols) that indicate to a user where to position the cup or other vessel to receive the beverage from the dispensing unit 12.
In certain embodiments, the system 10 is configured to wash the dispensing unit 12. For example, as shown in
Certain implementations are configured to spray, or otherwise distribute, the cleansing fluid around the entire, or at least substantially the entire, internal circumference of the shell of the dispensing unit 12. This can increase the likelihood that cleansing fluid will reach substantially the entire internal surface area of the dispensing unit 12. Some embodiments include a diffuser configured to direct the cleansing fluid around substantially the entire internal circumference of the dispensing unit 12. In certain implementations, the cleansing fluid is sprayed against the internal surface of the dispensing unit 12 at a substantially perpendicular angle and/or at or near the second end 20 of the dispensing unit 12. Some embodiments are configured to spray the cleansing fluid in a downward direction.
In some variants, the system 10 includes jets and/or nozzles adapted to spray cleansing fluid into the dispensing unit 12. For example, the jets and/or nozzles can spray cleansing fluid generally upwardly into the first end 18 of the dispensing unit 12. The cleansing fluid can fall downward via force of gravity into the drain or catch basin. Some embodiments do not include jets or nozzles configured to spray cleansing fluid upwardly into the dispensing unit 12.
Some implementations include drying functionality. For example, some embodiments include an active drying feature, such as a blower. The blower can be configured to direct a flow of air around and/or into the dispensing unit 12 (e.g., through the first end 18) to facilitate drying of the dispensing unit 12. Some implementations include a passive drying feature, such as a rest period. For example, movement and/or use of the dispensing unit 12 can be stopped for a period to facilitate drying, such as for at least about: 5 seconds, 10 seconds, or otherwise. In some embodiments, the rest period occurs when the dispensing unit 12 is in the inverted position.
As shown in
Certain beverage preparation machines are adapted to produce multiple servings of a beverage at a time, such as two shots of espresso. Thus, it can be advantageous for a beverage preparation system to be configured to receive, hold, and/or dispense multiple servings of the beverage, such as being configured to receive, hold, and dispense two shots of espresso. An example of a double-shot beverage dispensing assembly 111 is illustrated in
Many of the features of the system 110 are the same as, or similar to, the features described above in connection with the system 10. To illustrate such correspondence, many of the numerals used to identify features of the system 110 are incremented by a factor of one hundred relative to the numerals used in connection with the system 10. The system 110 can include one, some, or all of the features of the system 10, including all combinations and sub-combinations. Moreover, any of the components of the system 110 can be similar to the corresponding components of the system 10. For example, the first dispensing unit 112A and the second dispensing unit 112B can each be similar to the dispensing unit 12 discussed above, including all combinations and sub-combinations. Any component or step disclosed in any embodiment in this specification can be used in other embodiment.
As illustrated, the first and second dispensing units 112A, 112B can each include an open first end 118A, 120A and a closed second end 118B, 120B. The second end 118B, 120B of the first and second dispensing units 112A, 112B can be connected to a rotating member 134, which in turn can be supported by a base 136. The rotating member 134 can enable the first and second dispensing units 112A, 112B to rotate relative to the base 136. In some embodiments, the rotating member 134 is coupled with tubing 116 through which beverage from the beverage preparation machine 14 can be delivered to the first and second dispensing units 112A, 112B. For example, as shown, the rotating member 134 can connect with the tubing 116 via an elbow connector. In various embodiments, the rotating member 134, as well as the dispensing units 112A, 112B, can rotate relative to the tubing 116.
As shown, the base 136 can project upwardly, which can raise the dispensing units 112A, 112B above a countertop CT on which the base 136 is positioned. This can position the dispensing units 112A, 112B at an elevation that is higher than the top of the cup or vessel in which the beverage is to be poured, thereby allowing the beverage to flow by force of gravity into the cup or other vessel when the dispensing units 112A, 112B are rotated downward. In some embodiments, raising the dispensing units 112A, 112B above the countertop provide space to allow the dispensing units 112A, 112B to rotate without contacting the countertop. For example, in certain embodiments, the dispensing units 112A, 112B can be inverted without hitting, impacting, and/or physically touching the countertop.
In some embodiments, the dispensing units 112A, 112B include a handle 140 or other type of grip. The handle 140 can enable a user to rotate the first and second dispensing units 112A, 112B manually. In certain embodiments, the first and second dispensing units 112A, 112B rotate together. In some embodiments, the first and second dispensing units 112A, 112B rotate independently, such as the first dispensing unit 112A being able to rotate relative to the second dispensing unit 112B and vice versa. In some embodiments, the first and second dispensing units 112A, 112B each have a handle 140 or grip. In certain variants, the assembly 111 includes one or more motors or actuators (e.g., springs) configured to rotate the first and second dispensing units 112A, 112B, either together or independently. For example, certain variants include one or more motors or actuators configured to return one or both of the dispensing units 112A, 112B to the upright position, such as after one or both of the dispensing units 112A, 112B have been rinsed with cleaning fluid and/or after a period has elapsed. Some implementations include a mechanism (e.g., a releasable detent) that holds one or both of the dispensing units 112A, 112B in a lower position, such as in a pouring position or the inverted position.
In some embodiments, the system 110 includes a selector valve 142 configured to direct flow between the first and second dispensing units 112A, 112B. For example, as shown in
In various embodiments, the dispensing unit is readily visible. For example, in a retail environment, such as a coffee shop, the dispensing unit can be readily visible to a customer. In this regard, as mentioned above, in some embodiments, the dispensing unit is positioned on a countertop. In certain variants, the dispensing unit is visible from a first side of the countertop (e.g., a user side) and from an opposite second side of the countertop (e.g., a customer side). In some implementations, some or all other components of the system 110 are positioned below the countertop and/or otherwise out of sight from at least the second side of the countertop. For example, the beverage preparation machine 14, controller 130, control and/or selector valve 142, and pump 126 can be located below the countertop, inside of a cabinet, and/or otherwise out of view from at least the second side of the countertop. In some embodiments, during an operation of the filling of the dispensing units 112A, 112B, the beverage can appear to a customer to materialize in the dispensing units 112A, 112B, as if from nowhere. The customer can view the beverage welling-up from the bottom of the upright dispensing unit and/or progressively collecting inside the dispensing unit. In some implementations, the customer can view the dispensing unit being rotated and the beverage being poured into a cup or other vessel. In some embodiments, the customer can view the dispensing unit being inverted and/or the washed, such as from the top down.
As shown, the dispensing unit 112A can include a generally elongate hollow body with an open first end 118A and a generally closed second end 120A. The second end 120A can include an aperture 144, such as a hole in about the center of the second end 120A. As illustrated, the aperture 144 can be adapted to receive a projection 146 of the mounting assembly 124. The mounting assembly 124 or the dispensing unit 112A can include a sealing member 148 (e.g., an O-ring, gasket, or other type of seal) configured to provide a generally liquid-tight seal between the dispensing unit 112A and the mounting assembly 124. For example, the aperture 144 can include a rubber or plastic O-ring that seals against an outer wall of the projection 146 of the check valve 124 when the projection 146 of the mounting assembly 124 is received in the aperture 144 of the dispensing unit 112A.
As mentioned above, the dispensing unit 112A can be configured to be removed from the mounting assembly 124. For example, in some embodiments, the dispensing unit 112A can be separated from the mounting assembly 124 by applying a pulling force generally along the longitudinal axis A of the dispensing unit 112A, thereby slidably disconnecting the dispensing unit 112A and the mounting assembly 124. In some embodiments, the dispensing unit 112A is configured to be disconnected by translating (e.g., sliding) the dispensing unit 112A generally parallel with the longitudinal axis A. In some embodiments, the dispensing unit 112A is configured to be disconnected by rotating the dispensing unit 112A around the longitudinal axis A. For example, in some embodiments, the dispensing unit 112A is threadably connected with the mounting assembly 124 and/or the rotating member 134, and is configured to be disconnected by rotating the dispensing unit 112A around the longitudinal axis A. Certain implementations are configured to connect and/or disconnect the dispensing unit 112A and the mounting assembly 124 without relative rotation of the dispensing unit 112A and the mounting assembly 124. In some embodiments, the dispensing unit 112A is configured to contain fluid after being disconnected from the mounting assembly 124. For example, the dispensing unit 112A can include a closure mechanism (e.g., a flapper valve, umbrella valve, duckbill valve, etc.) configured to close the aperture 144, thereby inhibiting liquid in the dispensing unit 112A from being discharged through the aperture 144. In some embodiments, the dispensing unit 112A comprises a check valve that inhibits leakage from the aperture 144 after the dispensing unit 112A has been disconnected from the mounting assembly 124. In certain implementations, the dispensing unit 112A can be disconnected from the mounting assembly 124 and contents of the dispensing unit 112A can be poured by hand into a cup or other vessel. In some embodiments, extent of travel of the dispensing unit 112A is limited. For example, the dispensing unit 112A can be tethered to the base 136 or other component of the system 110, such as with a cord, chain, cable, or otherwise.
As illustrated, in some embodiments, the mounting assembly 124 includes a housing 150 with an inner chamber 152 that includes a tapered wall 154. The chamber 152 can include a sealing member, such as a ball 156, which can seat against the tapered wall. In some embodiments, the ball 156 is glass, plastic, or metal. As shown, in the upright orientation of the dispensing unit 112A, the ball 156 can seal against the tapered wall 154, such as by the force of gravity. When fluid is encouraged through the tubing 116, fluid can displace the ball 156, thereby opening the mounting assembly 124 and allowing the fluid to flow into the dispensing unit 112A. When the flow of fluid decreases or ends, the ball 156 can again seat against the tapered wall 154, thereby inhibiting or preventing fluid from flowing in the opposite direction.
In certain embodiments, as the dispensing unit 112A is pivoted, gravity displaces the ball 156 from being seated against the tapered wall 154, thereby opening the mounting assembly 124. In certain embodiments, such opening of the mounting assembly 124 does not occur until a certain amount of rotation of the dispensing unit 112A has occurred, such as at least about: about: 30°, 60°, 70°, 80°, 85°, 90°, 95°, values between the aforementioned values, or otherwise. In some variants, such opening of the mounting assembly 124 does not occur until a majority, or at least some, of the beverage in the dispensing unit 112A has been poured out of the first end 118A of the dispensing unit 112A.
In various embodiments, opening of the mounting assembly 124 can result in and/or facilitate automatically clearing a portion of the tubing 116. For example, opening of the mounting assembly 124 can permit ambient air to enter the tubing 116. This can aid in equalizing the pressure between the inside of the tubing 116 and ambient and/or can reduce or eliminate a pressure differential (e.g., vacuum) in the tubing 116. In some embodiments, permitting air to enter the tubing 116 can allow at least a portion of the beverage in the tubing 116 to flow back into the beverage preparation machine 14, into a container, and/or into the drain or catch basin. In various embodiments, rotating the dispensing unit 112A to pour the beverage into the cup or other vessel automatically results in opening of the mounting assembly 124, such as without requiring additional steps or actions by a user.
In some embodiments, when the dispensing unit 112A is at or near the inverted position (see
The method 200 can include rotating the dispensing unit to an intermediate position 204. For example, the dispensing unit can be rotated at least about: 60°, 75°, 90°, 105°, 120°, values between the aforementioned values, or otherwise. Some embodiments of the method 200 include dispensing the beverage from the dispensing unit 206, such as by pouring the beverage directly into a cup or other vessel. In some embodiments, all or substantially all of the beverage is dispensed from the dispensing unit 206. For example, of the pre-dispensed volume of beverage contained in the dispensing unit, certain implementations include dispensing at least about: 90%, 95%, 99%, percentages between the aforementioned percentages, or other percentages.
In some embodiments, the method 200 includes rotating the dispensing unit to a cleansing position, such as an approximately inverted position 208. In some embodiments, the dispensing unit is not perfectly inverted. For example, the dispensing unit can be offset from perfectly inverted by at least about: 1°, 3°, 5°, 10°, values between the aforementioned values, or otherwise. In some embodiments, between block 202 and 208, the method 200 includes rotating the dispensing unit at least about: 120°, 140°, 160°, 180°, 200°, values between the aforementioned values, or otherwise.
Certain embodiments include introducing the cleansing fluid through a second end of the dispensing unit 210. This can be performed when the dispensing unit is in the inverted position, such that the second end is at the top of the dispensing unit and/or is above the first end. Some embodiments include positioning a control valve to allow cleansing fluid, such as water, to pass through the valve and into the dispensing unit. Certain implementations include flowing the cleansing fluid downward along some or all of the length of the dispensing unit. Some embodiments include carrying-away, with the cleansing fluid, residue from the internal surface of the dispensing unit. Certain implementations include discharging the cleansing fluid from the first end of the dispensing unit, such as into a drain or catch basin.
In some embodiments, the method 200 includes rotating the dispensing unit 212, such as to the upright position. For example, the dispensing unit can be rotated approximately 180°. In some embodiments, the dispensing unit is rotated in opposite rotational directions when rotating from the upright position to the inverted position, and from the inverted position to the upright position. In some variants, the dispensing unit is rotated in the same rotational direction when rotating from the upright position to the inverted position, and from the inverted position to the upright position. Certain embodiments include positioning a control valve to allow beverage to pass through the control valve and into the dispensing unit. In some embodiments, such as embodiments with more than one dispensing unit, the method can including positioning a selector valve to change which dispensing unit is configured to receive the next flow of beverage.
As illustrated, the method 200 can include a decision block 214, which can ask whether there are additional beverage servings to be prepared and/or dispensed. If the answer is yes, then the method 200 can return to block 202 to introduce additional beverage into the dispensing unit and the method 200 can continue. In some embodiments, if the answer to the decision block 214 is no, then the method 200 ends.
Certain Beverage Dispensing Systems with Removable Containers (
The system 310 can include, and/or engage with, a removable container 312, such as a pitcher, jug, cup, or other vessel. The container 312 can be configured to hold and/or dispense a beverage, such as a coffee drink, dairy drink (e.g., milk, cream, half-and-half, or otherwise), juice, or another beverage. In some embodiments, the container 312 is configured to hold multiple servings of the beverage, such as two, three, four, five, six, or more servings. As illustrated, the container 312 can include an upper end 318 and a lower end 320, which can include the bottom of the container 312. An interior of the container 312 can be in communication with a liquid source through the tubing 316, such as a source of a liquid component of the beverage. For example, a flow of milk from a milk dispenser can pass through the tubing 316 and into the container 312. The interior of the container 312 can hold a volume of liquid L, such as at least about: 250 ml, 500 ml, 750 ml, 1 liter, volumes between the aforementioned volumes, or other volumes. In some embodiments, the system 310 is configured to introduce steam into the container 312 and/or the tubing 316, as is described in more detail below.
As shown, the lower end 320 of the container 312 can engage with a base 336 of the system 310. Such engagement can open a fluid passage (also called a port) into an interior of the container. For example, a container port 310 in the container 312 and a base port 372 in the base 336 can be opened, thereby forming the fluid passage therethrough. In some implementations, the fluid passage extends through the base 336 and through the lower end 320 (e.g., the bottom) of the container 312. In some embodiments, the engagement of the container 312 and the base 336, and/or a flow of fluid, opens one or more flow-control valves, such as a check valve 324A in the base port 372 and/or a check valve 324B in the container port 370.
As mentioned above, the system 310 can be configured to place an interior of the container 312 in communication with a liquid source, such as a source of milk. In some embodiments, the system 310 is configured to heat the liquid (e.g., milk) before the liquid has been introduced into the container 312. For example, certain embodiments include a heater that is configured to heat the liquid passing through the tubing 316. The heater can comprise an in-line heater, heat exchanger, or otherwise. The heated liquid can be introduced into the container 312, such as through the port in the container 312.
In some embodiments, the system 310 is configured to aerate the liquid, such as after the liquid has been heated. For example, after the heated liquid has been introduced into the container 312, a steam wand can be inserted through an open upper mouth of the container 312 and into the heated liquid. Air and/or steam can be passed though the wand and into the heated liquid. In some embodiments, air is added to the steam to facilitate the aerating operation, such as through an air inlet port in fluid communication with a stream of steam from a steam source. In some variants, air is added to the liquid (e.g., milk), such as through the steam wand before introducing the steam through the wand and/or through an air inlet port in the tubing 316. In certain implementations, air is added to the liquid to aerate the liquid before heating occurs.
In some embodiments, the system 310 is configured to heat and/or aerate the liquid after the liquid has been introduced into the container 312. For example, the system 310 can be configured to introduce unheated liquid (e.g., milk at a temperature of less than or equal to about 45° F.) into the container 312, and then to heat the liquid (e.g., by introducing steam into the liquid in the container 312). The steam can transfer heat to the liquid and/or can incorporate air or other gases into the liquid. In certain implementations, the introduction of steam can induce movement of the liquid within the container 312, which can facilitate mixing. In some embodiments, heating, aeration, and/or mixing of the liquid occurs substantially concurrently and within the container 312. In certain implementations, the liquid is introduced substantially completely before the steam is introduced. For example, the introduction of the liquid can finish before the introduction of steam begins. In some variants, the introduction of steam begins before the introduction of the liquid finishes.
In some embodiments, the liquid and steam are introduced through the same port, such as the container port 370. In some embodiments, the liquid and steam are introduced through different ports, such as a dedicated liquid port and a dedicated steam port in the container 312 and/or the base 336. As shown in
As further shown in
Certain implementations include a steam valve, which can be the control valve 328 or another valve, that controls the flow of steam. In some embodiments, when the steam valve is open, steam can flow from a steam source and into the tubing 316. The steam can flow through the tubing 316, through the port, and into the container 312. In some variants, the steam valve is part of a manifold. Some embodiments include one or more check valves to inhibit or prevent backflow. For example, the system 310 can be configured to inhibit or prevent the liquid, the steam, and/or condensation from flowing upstream toward the milk source and/or the steam source.
In some embodiments, the steam valve is controlled by a controller. The controller can operate the steam valve to provide a certain amount of steam, such as in terms of volume, elapsed time, desired amount of heating of the liquid (e.g., temperature setpoint), or otherwise. In some variants, the controller operates the steam valve to provide a certain amount of time, or a certain amount of flow, that steam is allowed to flow into the container 312, such as at least about: 2 seconds, 4 seconds, 6 seconds, 8 seconds, 10 seconds, values between the aforementioned values, or other values. In certain implementations, the steam valve is a two-position valve, such as an electronic solenoid valve. In some embodiments, the steam valve is a variable valve, such as a ball or butterfly valve. This can enable adjustment of the volume and/or velocity of steam delivered from the valve. For example, some embodiments are configured to vary (e.g., increase or decrease) the volume and/or velocity of the steam near the beginning and/or the end of the steam introduction process, such as during or near the first and/or last 5 seconds of the process.
In some implementations, the controller is in communication with a user input device, such as a touch pad, dial, button, lever, or otherwise. In some implementations, after introducing milk into the container 312, the system 310 waits for a user to signal, via the user input device, that the steam introduction process should begin. In certain variants, after introducing milk into the container 312, the system 310 automatically begins introducing steam into the container 312. The automatic introduction can occur substantially immediately after the introduction of milk finishes, or after a delay has elapsed after the introduction of milk has finished. For example, the delay can be at least about: 1 second, 2 seconds, 3 seconds, or otherwise.
The base 336 can include the check valve 324A, such as a duckbill valve, diaphragm valve, umbrella valve, ball check valve, or other type of flow control valve. In various embodiments, the check valve 324A is configured to open in response to fluid flowing in a direction toward the container 312 and to close in response to fluid flow in the opposite direction and/or in response to substantially no fluid flow. Thus, the check valve 324A can inhibit or prevent backflow of fluid.
As illustrated, the container 312 can include the check valve 324B. The check valve 324B can be configured to inhibit or prevent liquid from exiting the container 312 when the container 312 is disengaged from the base 336. In some embodiments, the check valve 324B includes an inner chamber 352 with a tapered wall 354. The chamber 352 can include a sealing member, such as a ball 356, which can seat against the tapered wall 354. The ball 356 can be engaged with (e.g., pressed against) the tapered 354 wall by a biasing member, such as a helical spring 358. This can close the check valve 324B and provide a generally liquid tight seal. Thus, the liquid L in the interior of the container 312 can be inhibited or prevented from exiting through the check valve 324B.
In some embodiments, the check valve 324B in the container 312 is automatically opened when the container 312 is engaged with the base 336. For example, as shown, a projection 360 of the base 336 can engage with the ball 356 of the check valve 324B. This can move the ball 356 against the bias of the spring 358, which can open a flow path through the check valve 324B. In certain embodiments, as shown in
In some embodiments, the check valve 324B is automatically closed when the container 312 is disengaged with the base 336. For example, when the container 312 is removed from the base 336, the projection 360 of the base 336 is disengaged from the ball 356 and the bias of the spring moves the ball back into engagement with the tapered wall 354. This can result in the check valve 324B closing and inhibiting or preventing backflow of the liquid L. Thus, the container 312 can be moved to another location without the liquid L spilling out through the bottom of the container 312.
As mentioned above, in some embodiments, the base 336 includes the projection 360. In certain embodiments, having the projection in the base 336 can allow the container 312 to have a generally planar bottom, which can allow the container 312 to be stably placed on a countertop or other location. In some variants, the container 312 includes the projection 360 and check valve 324A and the base 336 includes the check valve 324B, such as the tapered wall 354 and spring-loaded ball 356.
Various embodiments include certain other aspects, advantages, or features. For example, in some embodiments, the container 312 does not include a magnetic seal. For example, in some embodiments, the check valve 324A in the container 312 is not a magnetically operated valve. In some embodiments, the check valve 324A is not a valve comprising a diaphragm that is magnetically attracted to a bottom of the container, wherein the diaphragm is spaced apart from the bottom of the container 312 (e.g., by a pillar) when the container 312 is engaged with the base 336, and wherein the diaphragm moves (due to the magnetic attraction) into sealing engagement with the bottom of the container 312 when the container 312 is disengaged with the base 336. In some embodiments, substantially the entire, the entire, or at least the bottom of the container 312 is made of a magnetic material. In certain variants, substantially the entire, the entire, or at least the bottom of container 312 is made of glass or a metal, such as stainless steel. Various embodiments do not require the container 312 to be rotated with respect to the base 336 during engagement and/or disengagement between the container 312 and base 336. In some implementations, the surface of the base 336 that receives the container 312 is generally flat and/or does not comprise an upwardly extending pillar. In various embodiments, the container 312 is configured to be used for preparing a beverage and/or is not the vessel from which the beverage is consumed. In certain embodiments, the system 310 is configured to introduce the liquid into the container 312 in a generally vertical direction and/or not in a substantially radially outward direction in the container 312. In certain embodiments, the system 310 is configured to heat the liquid, such as with a heating element that heats (e.g., to at least about 45° C.) the liquid flowing through the tubing. In some implementations, the beverage source is not a pressurized carbonated beverage supply, such as a beer keg.
As mentioned above, the container 312 can include an upper end 318 and a lower end 320, which can include the bottom of the container 312. The interior of the container 312 can be in communication with a beverage liquid source, such as a source of milk. The lower end 320 of the container 312 can be configured to mate with the base 336. For example, the container 312 can rest on the base 336. In some embodiments, a projection (e.g., a flange) of the container 312 is received in a recess (e.g., a channel) of the base 336.
In some implementations, when the container 312 is mated with the base 336, the container port 370 is engaged with the base port 372. For example, the ports 370, 372 can be placed adjacent to and/or in fluid communication with each other. In certain implementations, the engagement of the ports 370, 372 can open a fluid passage through the base 336 and/or into the container 312, such as to permit liquid to flow through the base 336 and into the container 312.
In some embodiments, one or both of the ports 370, 372 comprises a flow controller, such as the check valves 324A, 324B. In some variants, the flow controller in the container 312 can comprises a gravity ball valve, such as is described above in connection with
In certain variants, the container 312 and base 336 are configured to facilitate mating, such as with one or more mating features in the container 312 and base 336. For example, as depicted, the container 312 can have four mating features 366a-d and the base 336 can have four corresponding mating features 366e-h. In certain variants, the container 312 and/or the base 336 have one, two, three, five, or more mating features. In some embodiments, the mating features 366 comprise magnetic elements, threads, projections (e.g., pins) that fit into recesses (e.g., slots), or otherwise. For example, in some embodiments in which the mating features 366 comprise magnetic elements, the magnetic elements of the container 312 can attract, or be attracted by, the corresponding magnetic elements of the base 336. In various implementations, the mating features 366 can facilitate holding the container 312 and the base 336 together and/or sealing a fluid connection between the container 312 and the base 336.
Some embodiments are configured to aid in positioning the container 312 relative to the base 336. For example, the container 312 and the base 336 can include ramped surfaces that engage with each other, thereby aiding in positioning (e.g., centering) the container 312 on the base 336. In some variants, a portion of the container 312 is received in the base 336, which can aid in stabilizing the container 312. For example, a lip or shoulder on the bottom of the container 312 can be received in a corresponding recess of the base 336 and/or in the countertop.
Some embodiments are configured to control, or at least encourage, the orientation container 312 relative to the base 336. This can aid in aligning features of the container 312 with corresponding features of the base 336, such as corresponding steam ports in the container 312 and base 336, corresponding liquid ports in the container 312 and base 336, and/or corresponding portions of a sensor in the container 312 and base 336. In certain embodiments, the aforementioned mating features facilitate the orientation. For example, in some variants in which the mating features comprise magnetic elements, the arrangement and polarity of the magnetic elements control the orientation of the container 312 relative to the base 336. For example, in some embodiments, the mating feature 366a has a negative polarity and the mating features 366b-d have a positive polarity, and the mating feature 366h has a positive polarity and the mating features 366e-g have a negative polarity. In certain such embodiments, when the container 312 is placed on the base 336, the only orientation of the container 312 relative to the base 336 in which each of the mating features engage with a mating feature of opposite polarity is the orientation in which the features 366a, 366h engage. Accordingly, the orientation of the container 312 relative to the base 336 can be controlled.
Certain variants use a physical interference to control, or at least encourage, the orientation of the container 312 relative to the base 336. In some embodiments, the container 312 and base 336 can be keyed to mate in only a certain relative orientation. For example, the base 336 can have a protrusion with a shape and the container 312 can have a recess with a corresponding shape, with the shape being such that the protrusion can only be received in the recess in a single certain orientation. In some embodiments, the shape is an irregular polygon. Certain implementations include a protrusion (e.g., a pin) that is offset from the center of the base 336 and a recess (e.g., a slot) that is in a corresponding location offset from the center of the container 312.
In some embodiments, the base 336 and/or container 312 comprise features configured to transmit a signal, such as a signal related to the temperature of the container 312 and/or the liquid in the container 312. For example, the container 312 can include a probe 368a and the base 336 can include a contact 368b. As depicted, the probe 368a can be positioned inside the container 312, so as to be in physical contact with the liquid in the container 312. When the container 312 and base 336 are mated, the probe 368a can engage the contact 368b to allow the signal from the probe 368a to be transmitted, via the contact 368b, to the controller or other component of the system 310. In some embodiments, the temperature of the liquid in the container 312 is sensed with a contact device, such as the probe 368a, that physically contacts (e.g., is immersed in) the liquid in the container 312. In certain variants, a non-contact device senses the temperature without physically contacting the container 312 and/or the liquid. For example, some embodiments have an infrared sensor.
In some embodiments, the system 310 is configured to aid in cleaning the container 312. For example, the system 310 can be configured to partially or completely invert the container 312 and/or to spray cleansing fluid (e.g., water) into the container 312. In some embodiments, this is accomplished by a user removing the container 312 from the base 336 and inverting the container 312 by hand, such as over a separate rinse station. In some variants, the container 312 remains engaged with the base 336 and the base 336 is configured to rotate, such as about an axis that is generally parallel to horizontal. For example, the base 336 can be rotated by a motor, which is controlled by the controller. Rotation of the base 336 can result in the container 312 on the base 336 being moved to a rotated position. In some embodiments, in moving to the rotated position, the container 312 is flipped, such as about 180° and/or inverted (e.g., upside-down). In some embodiments, from an upright position to the rotated position, the container 312 is rotated at least about: 120°, 150°, 180°, 210°, amounts between the aforementioned amounts, or other amounts. In various embodiments, the strength of the engagement between the container 312 and base 336 is sufficient to maintain the container 312 on the base 336, even in the rotated position. In the rotated position, residual liquid, froth, or other material in the container 312 can flow out of the container 312 by force of gravity. Some implementations include a container drain or catch basin under the residual liquid, froth, or other material.
Certain embodiments include a container cleaning unit, such as one or more nozzles. The nozzles can be configured to spray cleaning fluid (e.g., potable water) into the inverted container. For example, the nozzles can spray generally upwardly into the inverted container 312 to wash the inside of the container 312 and/or the container port 370. The cleaning fluid can fall into, and be received by, the container drain or catch basin. In some implementations, operation of the nozzles is governed by the controller. For example, the controller can control operation of a solenoid or other type of valve that opens to deliver the cleaning fluid to the nozzles. In some variants, the nozzles are part of the separate rinse station and/or are manually controlled.
In some embodiments, after the container 312 has been washed, the container 312 is returned to an upright orientation. In some embodiments, this is accomplished manually, such as by a user manually flipping the base 336 and/or the container 312 to the upright orientation. In certain variants, the motor flips the base 336 and/or the container 312 to the upright orientation.
As shown, the tubing 316 can include a manifold 378. The manifold 378 can connect with a plurality of tubes, such as two, three, four, five, or more. In some embodiments, the manifold 378 connects with a tube that carries steam and one or more tubes that carry liquid. For example, the manifold 378 can connect with a steam tube 316a, a milk tube 316b, and a water tube 316c. In some implementations, the steam tube 316a carries a mixture of steam and air. In certain variants, the manifold 378 can connect with a tube or tubes that carry other fluids, such as cold milk, hot milk, cold water, hot water, sauces, syrups, pumped (e.g., pressurized) ambient air, pumped heated air, pumped cooled air, or other fluids.
Each inlet on the manifold 378 can include a backflow prevention feature, such as a check valve. This can enable fluid from each of the tubes to be individually injected through the manifold 378, through the base 336, and into the container 312. In various embodiments, the manifold 378 and/or backflow prevention features can reduce or eliminate the chance of fluid from one tube entering into and/or contaminating the other tubes.
As used herein, the term “beverage” has its ordinary and customary meaning, and includes, among other things, any edible liquid or substantially liquid substance or product having a flowing quality (e.g., juices, coffee beverages, teas, frozen yogurt, beer, wine, cocktails, liqueurs, spirits, cider, soft drinks, flavored water, energy drinks, soups, broths, combinations of the same, or the like).
Conditional language, such as “can,” “could,” “might,” or “may,” unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements, and/or steps. Thus, such conditional language is not generally intended to imply that features, elements, and/or steps are in any way required for one or more embodiments or that one or more embodiments necessarily include logic for deciding, with or without user input or prompting, whether these features, elements, and/or steps are included or are to be performed in any particular embodiment.
Conjunctive language such as the phrase “at least one of X, Y, and Z,” unless specifically stated otherwise, is otherwise understood with the context as used in general to convey that an item, term, etc. may be either X, Y, or Z. Thus, such conjunctive language is not generally intended to imply that certain embodiments require the presence of at least one of X, at least one of Y, and at least one of Z.
Unless otherwise explicitly stated, articles such as “a” or “an” should generally be interpreted to include one or more described items. Accordingly, phrases such as “a device configured to” are intended to include one or more recited devices. Such one or more recited devices can also be collectively configured to carry out the stated recitations. For example, “a processor configured to carry out recitations A, B, and C” can include a first processor configured to carry out recitation A working in conjunction with a second processor configured to carry out recitations B and C.
The terms “comprising,” “including,” “having,” and the like are synonymous and are used inclusively, in an open-ended fashion, and do not exclude additional elements, features, acts, operations, and so forth Likewise, the terms “some,” “certain,” and the like are synonymous and are used in an open-ended fashion. Also, the term “or” is used in its inclusive sense (and not in its exclusive sense) so that when used, for example, to connect a list of elements, the term “or” means one, some, or all of the elements in the list.
The terms “approximately,” “about,” and “substantially” as used herein represent an amount close to the stated amount that still performs a desired function or achieves a desired result. For example, in some embodiments, as the context may dictate, the terms “approximately”, “about”, and “substantially” may refer to an amount that is within less than or equal to 10% of the stated amount. The term “generally” as used herein represents a value, amount, or characteristic that predominantly includes, or tends toward, a particular value, amount, or characteristic. As an example, in certain embodiments, as the context may dictate, the term “generally parallel” can refer to something that departs from exactly parallel by less than or equal to 20 degrees and/or the term “generally perpendicular” can refer to something that departs from exactly perpendicular by less than or equal to 20 degrees.
Overall, the language of the claims is to be interpreted broadly based on the language employed in the claims. The claims are not to be limited to the non-exclusive embodiments and examples that are illustrated and described in this disclosure, or that are discussed during the prosecution of the application.
Although this disclosure describes certain embodiments and examples of beverage dispensing systems and methods, many aspects of the above-described systems and methods may be combined differently and/or modified to form still further embodiments or acceptable examples. All such modifications and variations are intended to be included herein within the scope of this disclosure. Indeed, a wide variety of designs and approaches are possible and are within the scope of this disclosure. For example, although the dispensing units shown in the figures have one or two dispensing units, certain other embodiments include additional dispensing units. Some embodiments have three, four, five, or more dispensing units, as well as one or more appropriate control and/or selector valves to direct the flow of beverage to the various dispensing units, such as in lieu of or in addition to the three-way control and selector valves shown in
Also, although there may be some embodiments within the scope of this disclosure that are not expressly recited above or elsewhere herein, this disclosure contemplates and includes all embodiments within the scope of what this disclosure shows and describes. Further, this disclosure contemplates and includes embodiments comprising any combination of any structure, material, step, or other feature disclosed anywhere herein with any other structure, material, step, or other feature disclosed anywhere herein.
Furthermore, certain features that are described in this disclosure in the context of separate implementations can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination. Moreover, although features may be described above as acting in certain combinations, one or more features from a claimed combination can, in some cases, be excised from the combination, and the combination may be claimed as a subcombination or variation of a subcombination.
For purposes of this disclosure, certain aspects, advantages, and features are described herein. Not necessarily all such aspects, advantages, and features may be achieved in accordance with any particular embodiment. For example, some embodiments of any of the various disclosed systems include the container and/or include pluralities of the container; some embodiments do not include the container. Those skilled in the art will recognize that the disclosure may be embodied or carried out in a manner that achieves one advantage or a group of advantages as taught herein without necessarily achieving other advantages as may be taught or suggested herein.
Some embodiments have been described in connection with the accompanying drawings. The figures are drawn to scale where appropriate, but such scale should not be interpreted to be limiting. Distances, angles, etc. are merely illustrative and do not necessarily bear an exact relationship to actual dimensions and layout of the devices illustrated. Components can be added, removed, and/or rearranged. Further, the disclosure herein of any particular feature, aspect, method, property, characteristic, quality, attribute, element, or the like in connection with various embodiments can be used in all other embodiments set forth herein. Also, any methods described herein may be practiced using any device suitable for performing the recited steps.
Moreover, while components and operations may be depicted in the drawings or described in the specification in a particular arrangement or order, such components and operations need not be arranged and performed in the particular arrangement and order shown, nor in sequential order, nor include all of the components and operations, to achieve desirable results. Other components and operations that are not depicted or described can be incorporated in the embodiments and examples. For example, one or more additional operations can be performed before, after, simultaneously, or between any of the described operations. Further, the operations may be rearranged or reordered in other implementations. Also, the separation of various system components in the implementations described above should not be understood as requiring such separation in all implementations, and it should be understood that the described components and systems can generally be integrated together in a single product or packaged into multiple products.
In summary, various illustrative embodiments and examples of beverage dispensing systems and methods have been disclosed. Although the systems and methods have been disclosed in the context of those embodiments and examples, this disclosure extends beyond the specifically disclosed embodiments to other alternative embodiments and/or other uses of the embodiments, as well as to certain modifications and equivalents thereof. This disclosure expressly contemplates that various features and aspects of the disclosed embodiments can be combined with, or substituted for, one another. Accordingly, the scope of this disclosure should not be limited by the particular disclosed embodiments described above, but should be determined only by a fair reading of the claims that follow as well as their full scope of equivalents.
This application is a divisional of U.S. patent application Ser. No. 15/260,078, filed Sep. 8, 2016, which claims the priority benefit under 35 U.S.C. § 119 of U.S. Patent Application No. 62/220,680, filed Sep. 18, 2015, and U.S. Patent Application No. 62/327,808, filed Apr. 26, 2016. The entirety of each of the aforementioned applications is hereby incorporated by reference herein.
| Number | Date | Country | |
|---|---|---|---|
| 62220680 | Sep 2015 | US | |
| 62327808 | Apr 2016 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15260078 | Sep 2016 | US |
| Child | 16369818 | US |
