Mixing nozzle for a blended beverage for a multiple flavor beverage dispensing system

Abstract

A beverage dispensing mixing nozzle for mixing a multi-component beverage mixture. The nozzle has a disruption plate for slowing and dispersing a dispensed fluid into an adjacent expansion region. The disruption plate and floor of the expansion region have turbulence-inducing surfaces to aid in mixing the fluid.

Claims

1. A beverage dispensing nozzle comprising: an entry chamber adapted to connect with a beverage dispenser outlet, the entry chamber having a first internal wall having a first inner diameter, the first internal wall extending along an axis from a fluid entrance; an expansion chamber in fluid communication with the entry chamber and having a second inner wall extending along the axis from the first internal wall, the second inner wall having a second inner diameter, the second inner diameter being greater than the first inner diameter; an exit chamber in fluid communication with the expansion region and having a third internal wall extending along the axis from the second internal wall, the third internal wall having a third inner diameter that is less than the second inner diameter, the third internal wall extending along the axis to a fluid exit; and a fluid stream disruption plate extending across the axis at a position between the expansion chamber and the exit chamber wherein the second inner wall and fluid stream disruption plate have a turbulence-inducing surface; and wherein the fluid stream disruption plate has a central opening.

2. The beverage dispensing nozzle of claim 1 wherein the fluid stream disruption plate has at least one vent apart from the central opening.

3. The beverage dispensing nozzle of claim 1 wherein the fluid stream disruption plate has a plurality of vents circumferentially encircling the central opening.

4. The beverage dispensing nozzle of claim 3 wherein the each of the plurality of vents is an arced slot.

5. The beverage dispensing nozzle of claim 3 wherein the fluid stream disruption plate is funnel shaped.

6. The beverage dispensing nozzle of claim 4 wherein at least a portion of the third inner wall is funnel shaped.

7. The beverage dispensing nozzle of claim 6 wherein the second inner wall is curved as it extends from the first inner wall away from the axis and is angled toward the axis as it extends to the third inner wall in the direction of the fluid exit.

8. The beverage dispensing nozzle of claim 7 wherein a portion of the third inner wall is funnel shaped as it extends from the second inner wall and toward the fluid exit.

9. The beverage dispensing nozzle of claim 8 wherein the portion of third inner wall has a turbulence-inducing surface.

10. The beverage dispensing nozzle of claim 9 wherein the turbulence-inducing surface is a stepped surface.

11. The beverage dispensing nozzle of claim 9 wherein the turbulence-inducing surface is a ridged surface.

12. The beverage dispensing nozzle of claim 9 wherein the turbulence-inducing surface is a dimpled surface.

13. The beverage dispensing nozzle of claim 9 wherein the turbulence-inducing surface is a roughened surface.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 illustrates a perspective view of a conventional beverage dispensing nozzle used in multiple beverage dispensing systems according to the prior art.

(2) FIG. 2 illustrates a vertical view of the conventional beverage dispensing nozzle of FIG. 1.

(3) FIG. 3 illustrates a vertical cross-section view along Section A-A of FIG. 1.

(4) FIG. 4 illustrates a top view of the conventional beverage dispensing nozzle of FIG. 1.

(5) FIG. 5 illustrates a top perspective view of a beverage dispensing nozzle, in accordance with many embodiments of the present invention.

(6) FIG. 6 illustrates a top view of the beverage dispensing nozzle of FIG. 5.

(7) FIG. 7 illustrates a cross-section view along lines A-A of FIG. 6.

(8) FIG. 8 illustrates a detailed cross-section view as identified by Section B of FIG. 7 of the beverage dispensing nozzle.

(9) FIGS. 9A and 9B illustrates the flow of a beverage from both a prior art nozzle as seen in FIG. 9A and from the nozzle of the present invention as seen in FIG. 9B.

DETAILED DESCRIPTION OF THE INVENTION

(10) FIG. 5 shows a perspective view of a nozzle 30 in accordance with one embodiment of the present invention. The nozzle 30 has an inlet located at an upstream side of the nozzle. Adjacent the inlet, at the interior of the nozzle 30, within the entry chamber 32, there is a connection tab 36, a diffuser mating surface 38 and an internal raised surface 52. The connection tab 36 is made up of a twist-lock feature arrayed either singularly or plurally about the inner surface of the nozzle 30. Other ways for connection include snap, friction, screw, and compression, among others. When the nozzle is connected to a beverage-dispensing system diffuser, an o-ring (not shown) may be used between the diffuser and the diffuser mating surface 38 and the raised surface 52, to create a liquid proof seal. An expansion chamber 42 adjoins the entry chamber. At the bottom of the expansion chamber is a disruption plate 40, seen in FIG. 6, that extends across the ordinary fluid path that a beverage fluid flows through the nozzle. The configuration of the disruption plate in conjunction with the expansion chamber, allows for the flow of the beverage fluid through the entry chamber region and then into the expansion chamber to disperse and expand after the beverage fluid has interacted with the disruption plate 40.

(11) FIG. 6 shows a turbulence-inducing surface 50 on the disruption plate 40 which aids in further slowing the flow of the fluid and induces mixing of the distinct and/or partially mixed beverage base and beverage additive fluids. The turbulence-inducing surface 50 is formed to create sufficient turbulence to mix the beverage base and beverage additive fluids without overmixing the beverage combination to lower the carbonation content of the beverage too much, resulting in a flat beverage. There are also turbulence-inducing surfaces 50 on the upper portion of the expansion region sidewall 48 as can be seen in FIG. 7. Here, the turbulence-inducing surface 50 are a plurality of terraces or steps, defined by edges that decrease in diameter in the flow direction. However, the shape of the turbulence-inducing surface 50 is not limited to the circular terraces and can take other forms, such as a roughened or dimpled surface.

(12) FIG. 7 shows a section view of the beverage dispensing nozzle 30 as identified by Section A-A of FIG. 6. In this view, the turbulence-inducing surfaces 50 on the expansion region 42, both on the top and bottom of the expansion region 42, and on the disruption plate 40, can be seen. Moreover, the cross-section of the fluid disruption plate 40 can be seen in greater detail. FIG. 8 shows a close-up of the turbulence-inducing surface 50 on the upper portion of the expansion region sidewall 48 and the fluid disruption plate 40.

(13) The fluid stream disruption plate 40 is angled in a funneling fashion toward the central axis of the nozzle in the direction of the fluid discharge, thus, allowing mixed fluid to flow towards a central opening 54. In addition to a central opening 54 of the disruption plate, a plurality of vents 56 penetrate the disruption plate 40 to ensure mixed beverage fluid does not back up or clog the nozzle, ensuring adequate drainage from the expansion region 42. As can be seen in FIG. 5, the plurality of openings 7 are elongated curved slots which are circumferentially located around, but apart from, the central opening 54. As can be seen, there are four equally sized and spaced slots but other embodiments are possible and a different configuration of vents and openings can be used.

(14) After the beverage components are mixed within the expansion chamber, they flow past the exit region 36, where further mixing is performed as the fluid funnels to the discharge point 34 of the nozzle by virtue of angled internal wall 48 of the exit region 36 which also has a turbulence-inducing surface 50. Here, the turbulence-inducing surface 50 of the expansion region 40, the disruption plate 40 and the upper internal wall 48 of the exit region are stepped surfaces, as can be seen in the cross-section of the nozzle in FIG. 8, however it can be appreciated by one skilled in the art that a variety of different surfaces may be utilized on all or separately on each of the turbulence-inducing surface 50 of the expansion region 40, the disruption plate 40 and the upper internal wall 48 of the exit region.

(15) FIGS. 9A and 9B illustrate the flow of a beverage from both a prior art nozzle, as seen in FIG. 9A, and from the nozzle of the present invention, as seen in FIG. 9B. As can be seen, the flow of mixed beverage from the prior art nozzle in FIG. 9A has a streaking or unmixed appearance leading some users to misinterpret whether the final beverage is thoroughly mixed, which may lead to the user discarding an otherwise good beverage causing waste. The appearance of the dispensed beverage flow from a nozzle in conformance with the present invention, as shown in FIG. 9B, is uniform since thorough mixing occurs given the configuration of the mixing nozzle and users are not unnecessarily tempted to waste dispensed beverage given the appearance of the dispensed beverage flow from the mixing nozzle in conformance with the present invention.

(16) The above description is illustrative and is not restrictive. A recitation of a, an or the is intended to mean one or more unless specifically indicated to the contrary. Many variations of the disclosure will become apparent to those skilled in the art upon review of the disclosure. One or more features from any embodiment described herein may be combined with one or more features of any other embodiment without departing from the scope of the disclosure. The scope of the disclosure should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the pending claims along with their full scope or equivalents.