Food service establishments (e.g., restaurants or convenience stores) often make non-carbonated beverages (e.g., tea or fruit juice) by using dispensing systems that mix beverage concentrates, usually in the form of a syrup, with water. Dispensing systems that use bag-in-box concentrate (or just concentrate in a flexible bag) typically store the concentrate at a remote location. The concentrate is brought to the dispensing machine via pumps in the dispensing system and long conduits. In a few dispensing mechanisms, the bag is “on-board,” meaning within the dispenser housing. There are a number of ways in which to store on-board bags, but, in changing out the bags when they were depleted or when a flavor change was desired, leakage can cause a mess. Moreover, in prior art on-board bag systems, access was often a problem. Tools or wall removal was required for obtaining access to the bags. Not only is access a problem in such systems, that is access to the concentrate, but the location and member which supported such concentrate also presented problems in getting access to other elements of the beverage dispensing system.
Various systems, processes, and techniques for dispensing beverages are disclosed. In certain implementations, a beverage dispensing system may include, among other things, a housing, a water inlet, a dispensing faucet, and a beverage storage tray. The housing may have a base and at least one vertically extending wall that define an inner cavity at least at the top of the housing. The water inlet and the dispensing faucet may be coupled to the housing. The tray may be adapted to couple to the housing and be toollessly engaged so as to be suspended in the inner cavity. The tray may have walls and a lower surface that define a cavity adapted to hold one or more beverage concentrate containers (such as a bag or a bag in a box). The lower surface of the tray may be slanted, from an elevated portion to a lower portion, relative to the base of the housing when the tray is coupled to the housing. The lower surface may have a through the floor connector fitting including an aperture adapted to receive a beverage concentrate conduit.
In certain implementations, the connector fitting is in the elevated portion of the lower surface of the tray. A container connector fitting may be located in the lower portion. The connector fitting may include a quick disconnect for a beverage hose.
In particular implementations, the housing is adapted and dimensioned to sit on a counter. The system may also include an electric pump or pumps adapted to draw beverage concentrate from a bag located in the tray. In certain embodiments, there are 24 VDC pumps, with the DC being supplied by a remote wall mounted transformer
Various implementations may include one or more features. For example, by using a slanted beverage storage tray, additional beverage concentrate may be extracted from a container (e.g., a bag). Additionally, storing the beverage locally may allow the system to be used where beverage supply lines (e.g., from a back room) are not available.
A variety of other features will be apparent to one skilled in the art from the following detailed description and claims, along with the accompanying drawings.
Housing 110 includes a base 112 and vertically extending sidewalls 114. Base 112 and vertically extending sidewalls 114 define a cavity 116. Housing 110 may be made of metal, plastic, or any other appropriate material. In particular implementations, housing 110 is sized to sit on a counter.
Water inlet assembly 120 includes a connector 122 for coupling to a rear wall and coupling to a pressurized water source. The water source may be local to system 100 or remote (e.g., a public water supply). Water inlet assembly 120 may be adapted to receive water at a standard operating pressure (e.g., 30-130 psi). Water inlet assembly 120 may be made of brass, stainless steel, plastic, or any other appropriate material.
Water inlet assembly 120 also includes a manifold “T,” or divider 124 (see
In certain implementations, water inlet assembly 120 may include a shut-off valve (not shown). A shut-off valve may, for example, be a ball valve, a butterfly valve, or any other device for controllably restricting fluid flow.
Flow controllers 132a-d may be adapted to operate under relatively high pressures. Public water supplies typically have pressure between 30-80 psi, but some go up to 130 psi. Thus, flow controllers 132a-d may be designed to work with pressures up to 80 psi and, in certain implementations, up to 130 psi. The 139-0030/Valve Assy/Cntl, Soda 1 flow controller available from Schroeder America, for example, is able to operate under those pressures.
In certain implementations, flow controller assembly 130 may include one or more shut-off valves 133a-d (133d being partly hidden in
Flow control assembly 130 also includes flow control adjusters 135a-d, to adjust the flow through flow controllers 132. In the illustrated implementation, flow control adjusters 135 include slotted heads for receipt of a screw driver, which may be inserted through holes in the rear wall of housing 110 (
Flow controller assembly 130 is coupled to dispensing valves 140 through conduit pairs 180c-d. Each dispensing faucet or valve 140 receives a pair of conduits 180c and 180d, one for water and one for beverage concentrate.
Dispensing faucets 140a-b (
Each dispensing faucet 140a-b includes a handle 142 and a nozzle 144. Handle 142 is mechanically operated and serves as a lever to activate a valve (not viewable) inside the dispensing valve. The valve may, for example, be a poppet valve or any other appropriate type of valve. If pressures are not too high, a pinch valve, for instance, could be used. A variety of other appropriate faucets are described in U.S. patent application Ser. No. 12/944,457, which is entitled “A Post-Mix Dispenser Assembly,” was filed on Nov. 11, 2010, and is herein incorporated by reference.
Dispensing faucets 140 may be able to withstand relatively high pressures (e.g., above 30 psi), and in some implementations may be able to withstand pressures up to 140 psi, without leaking. In particular implementations, dispensing faucets 140 may be similar to the 137-0005, Assy, Valve, Post Mix dispensing faucets available from Schroeder America of San Antonio, Tex. (USA). Dispensing faucets 140 may be made from metal, plastic, or any other appropriate material.
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Bags or bag in boxes may be placed in beverage storage tray 150 so that their connectors 404 are in lower end 153b. Thus, as the beverage concentrate is extracted from the bags, the syrup will, under gravity, move towards the connectors 404. This should allow more beverage concentrate to be extracted from each bag. Industry estimates are that up 10% of each bag of beverage concentrate is wasted.
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Each of pressure switches 170 is fluidly coupled to one of the flow controllers 132 in flow controller assembly 130. Thus, the beverage concentrates pumped by fluid pumps 160 are regulated for flow rate before proceeding to dispensing valves 140.
In certain modes of operation, beverage concentrate containers (e.g., bags) are coupled to conduits running to the quick disconnect fittings 156 and placed in beverage tray 150. A cover 157 (e.g., a lid) (see
Additionally, a water supply is coupled to water inlet assembly 120. Dispensing valves 140, which may, for example, be a post-mix valve, are then opened by activating handles 142 (either one at a time or simultaneously) to allow water and a beverage concentrate to flow therethrough. Flow controllers 132 on each water and beverage circuit regulate the flow of water and beverage concentrate in known ways to a prescribed flow rate and supply it to dispensing valves 140.
When the handle of a dispensing valve 140 is activated, water flows through the dispensing valve due to the pressure from the water supply. Additionally, beverage concentrate syrup flows through the dispensing valve due to pressure in one of conduits 180e and f (fitting to pump), one of conduits 180g and h (pump to flow control), and one of conduits 180d (flow control to dispensing valve). When the associated pressure switch 170 detects a drop in pressure, the switch activates the associated pump 160 to supply additional beverage concentrate. The beverage concentrate is mixed together with the water, at least initially, in the nozzle 144 of the associated dispensing valve 140a/b.
In certain implementations, the dispensed beverage may be chilled. For example, chilled water may be fed through water inlet assembly 120 or a chilling unit may be placed inside housing 110. Since water is mixed with the beverage concentrate in a ratio of between about 5:1 to 10:1, this will chill the dispensed beverage. In particular implementations, however, the concentrated beverage syrup may also be chilled (e.g., by pre-chilling before reaching housing 110 or refrigerating housing 110).
System 100 has a variety of features. Previous beverage dispensing systems used remote pumps and beverage bags to supply beverage concentrate to a beverage dispenser. However, as the number of beverages has begun to expand greatly, the conduits to carry the beverages from a back room to the dispenser have been used up. With system 100, however, the beverage concentrate is local with the housing. Thus, the only thing that needs to be supplied to system 100 is water, which is typically readily available, and electricity.
Although
Applicant's beverage storage tray 150 may also be used in other beverage dispensing systems. For example, the beverage storage tray may be used in other pump-based systems or in a Venturi-based system. In a Venturi-based system, a beverage storage tray may include additional apertures (in one implementation surrounded by bosses and/or with covers) in the bottom (e.g., to allow access for adjusting an adjustment mechanism in a Venturi device located under the tray).
In certain implementations, pressure switch 270 may be incorporated into the pump. The pump may, for example, use 24 VDC, which may, for instance, be supplied by a transformer 265, which may convert AC (e.g., 120 VAC) to DC (e.g., 24 VDC). In particular implementations, transformer 261 may be a step-down wall mount transformer.
In some implementations, all of the components, with the possible exception of water supply 210 and transformer 265, may be located in a housing 205, which may be adapted to be placed on a counter, such as a housing having dimension, about L=13″, W=12″, and Height=17.5″. A tray dimensioned to fit within an inner cavity of the interior space defined by the walls of the housing may have dimensions in the range of about L=4.5″ to 6.5″, W=10″ to 12″ and H=1″ to 2″. The inner cavity is the top part of the interior space in which the tray will fit. These dimensions will allow a typical tray to hold between 1 and about 2 concentrate bags.
Water supply 210 may, for example, be local to system 200 or remote (e.g., a public water supply). Water supply 210 is coupled to water inlet assembly 220 by a conduit 290a.
Water inlet assembly 220 may be adapted to receive water at a standard operating pressure (e.g., about 30-130 psi). Water inlet assembly 220 may be made of brass, stainless steel, plastic, or any other appropriate material. Water inlet assembly 220 is coupled to flow controller 230 by conduit 290b.
Flow controller 230 regulates the flow rate of water through system 200. In particular implementations, flow controller 230 may regulate the flow rate to between about 1.0 ounces/s to 3.0 ounces/s. As part of regulating flow, flow controller 230 may maintain downstream flow rate even as pressure changes.
In certain implementations, flow controller 230 may be operated under relatively high pressures. Public water supplies typically have pressures between about 30-80 psi, but some go up to 130 psi. Thus, flow controller 230 may be designed to work with pressures up to about 80 psi and, in certain implementations, up to about 130 psi. In particular implementations, flow controller 230 may be similar to the 139-0030/Valve Assy/Cntl, Soda 1 flow controller available from Schroeder America of San Antonio, Tex. (USA).
Flow controller 230 is coupled to dispensing faucet or valve 240 by conduit 290c. In particular implementations, dispensing faucet 240 is able to withstand relatively high pressures (e.g., above about 30 psi), and in some implementations may be able to withstand pressures up to about 140 psi, without leaking. Dispensing faucet 240 may, for example, be a post-mix valve similar to the 137-0005 Assy, Valve, Post Mix faucet available from Schroeder America of San Antonio, Tex. (USA). An appropriate pre-mix valve may also be used. Dispensing faucet 240 may be made from metal, plastic, or any other appropriate material.
Dispensing faucet 240 also receives beverage concentrate syrup 250. The handle movement initiates simultaneous opening of the two fluid circuits within the faucet and subsequent downstream mixing of the two fluids before they leave the faucet. The beverage concentrate syrup is typically substantially mixed with the water when leaving dispensing faucet 240.
Beverage concentrate syrup 250, which typically has a viscosity substantially higher than that of water, is supplied to pump 260 through conduit 290d. The beverage concentrate syrup may, for example, be in a bag. Beverage concentrate syrup from pump 260, which may, for example, be an electric pump, is conveyed to pressure switch 270 through conduit 290e.
Pressure switch 270 is coupled to flow controller 280 through conduit 290f. Pressure switch 270 may detect the pressure of beverage concentrate syrup in conduit 290f and activate pump 260 if the pressure drops too low (e.g., when dispensing faucet 240 is open).
Flow controller 280 regulates the downstream flow rate of beverage concrete syrup through system 200. In particular implementations, flow controller 280 may regulate the flow rate to between about 0.2 ounces/s to 1.0 ounces/s. As part of regulating flow, flow controller 280 may maintain flow rate even as upstream pressure changes.
In certain implementations, flow controller 280 may be operate under relatively high pressures. For example, flow controller 280 may be designed to work with pressures up to about 80 psi and, in certain implementations, up to about 130 psi. In particular implementations, flow controller 280 may be a similar to the 139-0030/Valve Assy/Cntl, Soda 1 flow controller available from Schroeder America of San Antonio, Tex. Flow controller 280 is coupled to dispensing faucet 240 by conduit 290g.
In certain modes of operation, beverage concentrate syrup 250 is coupled to conduit 290d to fluidly couple the syrup with pump 260. Water supply 210 is also coupled to water inlet assembly 220. Dispensing faucet 240 is then opened to allow simultaneous flow of water and syrup through system 200. As the water flows through flow controller 230, the flow rate is regulated to a prescribed flow rate. Additionally, the opening of dispensing faucet 240 should cause beverage concentrate syrup 250 to start flowing through conduit 290g to dispensing faucet 240, where the water and syrup are mixed to form a beverage. Flow controller 280 will regulate this flow, and pump 260 will supply additional beverage concentrate when needed.
A captured upper slide 310 and a captured lower slide 314 are adapted to slide in upper 312a/b and lower 316a/b slide engaging walls. Upper slide engaging walls 312a/b are shaped like an inverted “L” and will frictionally engage the sidewalls of the upper slide. Lower slide engaging walls 316a/b are “L”-shaped and designed to frictionally engage the sidewalls of lower captured slide 314. The function of the captured slides is to engage, by sliding back and forth in slide bays 326, dole fittings 320, one coming into the top of fluid fitting 156 from the bag and engaged by upper capture slide 310 and one dole fitting coming into the bottom of body 300 and engaged by lower captured slide 314 in ways set forth below.
Dole fittings 320 are seen to comprise o-ring bays 322 with o-rings 324 therein. There may be two o-ring bays and two o-rings per fitting. Moreover, the o-rings are designed to friction fit with the bore 302 as the dole fittings slide into body 300 as set forth in
Fitting 156 is dimensioned to pass through aperture 159. Because the aperture and fitting are at the high-end of the bottom, the bag or bag in box will lay so that its bag connector (see
Further, any liquid in the bag or bag in box will pool adjacent the bag connector because it is in the lower end. This will ensure that suction from the pump carried through fitting 156 and the feedline to the bag or bag in box will draw out almost all or all the liquid concentrate from the bag, preventing the trapping of fluid in the bag that may occur if the bottom were flat.
Conduit 402 may be flexible conduit that connects to fitting 156, and the conduits 180e/f that attach below the fitting 156 may have enough excess that the tray may be lifted clear of the rim of the housing without interference so a service attendant may disconnect the lower dole fitting and remove the tray. About 10 to 16 inches of “play” should be provided in these lines.
Although the invention has been described with reference to specific embodiments, this description is not meant to be construed in a limiting sense. On the contrary, various modifications of the disclosed embodiments will become apparent to those skilled in the art upon reference to the description of the invention. It is therefore contemplated that the appended claims will cover such modifications, alternatives, and equivalents that fall within the true spirit and scope of the invention.
This application claims the benefit of and priority to U.S. Patent Application No. 61/994,915, filed May 18, 2014. This prior application is herein incorporated by reference.
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Number | Date | Country | |
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Number | Date | Country | |
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