A fluid dispensing element
Patent Information
- Application Number
- AU2025230726
- Authority / Receiving Office
- AU · AU
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-02-11
- Filing Date
- 2025-09-11
- Publication Date
- 2026-08-27
Smart Images
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Abstract
Description
The present invention is in the field of fluid dispensing elements for the dispensing of fluid from a fluid container. More preferably, the present invention is in the field of fluid dispensing elements for the dispensing of domestic cleaning products from a 5 fluid container. The present invention is more specifically in the field of fluid dispensing elements for washing up liquid bottles. Background Fluid dispensing elements play an important role in preventing the leaking of fluid held within a fluid container. They provide an important obstruction to passive fluid 0 flow out of the fluid container after the removal of any container lids, seals or caps. However, said fluid dispensing elements also need to allow intentional fluid dispensing when required and enable adequate control to a user for selectively doing so and controlling the volume dispensed. This control is an important factor in enabling the correct dosage of a fluid to be 15 dispensed for any purpose, wherein correct relates to a user intended volume. This is particularly important for domestic cleaning products, particularly inverted or standup detergent bottles, where a significant portion of the cleaning fluid held within the fluid containers is wasted due to fluid leakage when in an inverted position or unintentionally over dispensing the fluid during use, for example, prior to a cleaning 20 activity. This is not only economically inefficient but increases waste, which in turn encourages overconsumption and leads to negative environmental effects. On the other hand, overly resistant fluid dispensing elements may cause additional strain on a user’s hand which may lead to an unpleasant user experience. There is a need for fluid dispensing elements to strike an optimal resistance to fluid flow out of the fluid 25 container to meet both these demands. Current fluid dispensing elements, particularly those for domestic cleaning products, address this resistance balance requirement by introducing additional deformable buffer substances that complicate the dispensing mechanism and reduce the volume available within the main cavity of the fluid container for cleaning fluid. 30 There is yet to be disclosed a fluid dispensing element that achieves this optimal balance without the above identified shortcomings. Statements of Invention Aspects of the present invention are set out in the independent claims. Optional features are set out in the dependant claims. 2025230726 11 Sep 2025 In accordance with a first aspect of invention there is disclosed a fluid dispensing element for a fluid container, wherein the fluid dispensing element comprises: an inlet; a fluid channel; 5 a mouth portion; and a first shelf; wherein the inlet is configured such that fluid from a main cavity of the fluid container is configured to enter the fluid channel; wherein the mouth portion is configured to expel fluid out of the fluid 10 channel; wherein the fluid channel is positioned between the inlet and the mouth portion, wherein a proximal end of the fluid channel is configured to be adjacent the inlet and a distal end of the fluid channel is configured to be adjacent the mouth portion; 15 wherein the first shelf is positioned between the inlet and the mouth portion, wherein the first shelf is configured to partially obstruct the fluid channel such that at least a portion of the fluid channel meanders and wherein the fluid channel extends in at least a first and a second direction, wherein the first and the second direction are angularly separated. Advantageously, this arrangement may 20 increase the resistance to fluid flow out of the fluid container and as such increase the time it takes for a control volume of fluid to exit the fluid container. This increased time for dispensing may provide greater control to a user who may now more accurately dispense the correct amount of fluid for the task required. This resistivity also decreases the sensitivity of the dispensing mechanism. The shelf 25 arrangement may also have a minimal effect on the volume it occupies within the fluid container and hence allow for greater space for storing liquid. This shelved arrangement may further prevent leakage, especially for stand-up detergent bottles. This simple solution may also be cost efficient to manufacture and install in a bottle. Optionally, wherein the fluid dispensing element comprises a second shelf. This may 30 aid to provide additional obstructions within the fluid channel. Optionally, wherein the second shelf is configured to partially obstruct the fluid channel such that at least a portion of the fluid channel meanders and extends in a 2025230726 11 Sep 2025 third direction. This may advantageously increase resistance of the mechanism once more and allow for greater control. It may also aid to reduce unwanted leaking by providing an additional surface to capture escaped fluid from the main cavity of the container. 5 Optionally, wherein the first shelf extends at least partially in a horizontal direction from a lateral surface of the fluid dispensing element. Advantageously, this extension of the shelf may allow a fluid channel to continue to the mouth portion whilst still providing an adequate obstruction that increases resistivity to fluid flow. Optionally, wherein the first shelf extends in the second direction. This may enable 0 a meander in the fluid channel. Optionally, wherein the second shelf extends at least partially in a horizontal direction from a lateral surface of the fluid dispensing element. Advantageously, this extension of the shelf may allow a fluid channel to continue to the mouth portion whilst still providing an adequate obstruction that increases resistivity to fluid flow. 15 Optionally wherein the second shelf extends in a third direction. Optionally wherein the second shelf extends towards the first shelf. The above two statements may enable a meander in the fluid channel once more. This may further increase the time taken for the fluid to exit the fluid container by virtue of increasing the resistance to fluid flow or increasing the number of obstructions in 20 the fluid channel. This may also further reduce the sensitivity of the fluid dispensing and allowing for more accurate dosage control. Optionally, wherein the fluid channel forms a chicane, S or zig-zag profile. This may further increase the time taken for the fluid to exit the fluid container by virtue of increasing the resistance to fluid flow or increasing the number of obstructions in 25 the fluid channel. This may also further reduce the sensitivity of the fluid dispensing and allowing for more accurate dosage control. Optionally, wherein the inlet comprises an inlet shelf. Optionally, wherein the inlet comprises an inlet opening, wherein the inlet opening is the width of the inlet that does not comprise the inlet shelf. The above two 30 statements may enable an initial obstruction to fluid flow prior to the fluid entering the fluid channel. 2025230726 11 Sep 2025 Optionally, wherein the mouth portion comprises a mouth shelf, wherein the mouth opening is the width of the mouth portion that does not comprise the mouth shelf. This may enable a more streamlined profile of fluid to exit the fluid container. Optionally, wherein the second shelf is integral to the mouth portion. This may be a 5 structurally robust arrangement, especially for a portion of the fluid dispensing element that may be prone to external forces directly. Optionally wherein the second shelf is the mouth shelf. This may enable a more streamlined profile of fluid to exit the fluid container. Optionally, wherein the width of the fluid channel adjacent the first shelf is 4-8mm. 0 Optionally, wherein it is 6mm, wherein the width is defined as the space between a distal end of the first shelf and a portion of a lateral surface of the fluid dispensing element adjacent the distal end of the first shelf. Optionally wherein the width is defined as that available for fluid flow adjacent the first shelf. The size of the above three statements may advantageously strike the 15 balance between the desired resistance to fluid flow in the fluid channel and maintain an effective dispensing mechanism that is not too straining for a user to achieve. Optionally, wherein the width of the fluid channel adjacent the second shelf is 48mm. 20 Optionally wherein it is 6mm, wherein the width is defined as the space between a distal end of the second shelf and a portion of a lateral surface of the fluid dispensing element adjacent the distal end of the second shelf. Optionally, wherein the width is defined as that available for fluid flow adjacent the second shelf. The size of the above three statements may advantageously strike the 25 balance between the desired resistance to fluid flow in the fluid channel and maintain an effective dispensing mechanism that is not too straining for a user to achieve. Optionally, wherein the width of the fluid channel adjacent the inlet shelf is 4-8mm. Optionally wherein it is 6mm. 30 Optionally, wherein the width of the fluid channel adjacent the mouth shelf is 48mm. 2025230726 11 Sep 2025 15 Optionally wherein it is 6mm. The size of the above four statements may advantageously strike the balance between the desired resistance to fluid flow in the fluid channel and maintain an effective dispensing mechanism that is not too straining for a user to achieve. Optionally, wherein the first shelf and the second shelf are separated by a height of 2-4mm. Optionally by 3mm. The above two statements may enable a sufficient height to enable a large enough fluid volume to meander back on itself. Optionally, wherein the first shelf and the inlet are separated by a height of 2-4mm. Optionally by 3mm. The above two may enable a sufficient height for a fluid flow to establish before it is obstructed. Optionally, wherein the second shelf and the mouth portion are separated by a height of 2-4mm. Optionally by 3mm. The above two statements may enable a sufficient height to enable a large enough fluid volume to meander back on itself. Optionally, wherein the ratio of the width of the fluid channel adjacent the first shelf against the height of separation of the first shelf and second shelf is 2:1. Optionally wherein the ratio of the width of the fluid channel adjacent the second shelf against the height of separation of the first shelf and second shelf is 2:1. 20 Optionally, wherein the ratio of the width of the fluid channel adjacent the inlet shelf against the height of separation of the first shelf and inlet shelf is 2:1. Optionally, wherein the ratio of the width of the fluid channel adjacent the first shelf against the height of separation of the first shelf and inlet shelf is 2:1. Optionally, wherein the ratio of the width of the fluid channel adjacent the second 25 shelf against the height of separation of the second shelf and mouth portion is 2:1. The ratios of the above five statements may advantageously strike the balance between the desired resistance to fluid flow in the fluid channel and maintain an effective dispensing mechanism that is not too straining for a user to achieve. Optionally, wherein the fluid dispensing element comprises a slit valve. 30 Optionally, wherein the mouth portion comprises the slit valve. The slit valve may allow for the flow of fluid in a controlled manner. 2025230726 11 Sep 2025 Optionally, wherein the first and second shelves are configured to at least partially overlap with one another. This may ensure there is a complete meandering of the fluid channel without a passage from the inlet to the mouth portion that is unobstructed. 5 Optionally, wherein the first shelf is configured to at least partially overlap a cross sectional area of the second shelf. The above two statements may ensure there is a complete meandering of the fluid channel without a passage from the inlet to the mouth portion that is unobstructed. Optionally, wherein the fluid dispensing element is substantially shaped as a hollow 0 cylinder. Optionally, wherein the fluid dispensing element is a hollow cylinder comprising a first shelf. Optionally, wherein the fluid dispensing element is a hollow cylinder comprising a second shelf. 15 Optionally, wherein the fluid dispensing element is a hollow cylinder comprising an inlet shelf. Optionally, wherein the fluid dispensing element is a hollow cylinder comprising a mouth shelf. The above four statements may ensure adequate obstruction to the flued channel are provided to resist fluid flow. 20 Optionally, wherein the fluid comprises viscosity values in the range 500-100000 cP. This may cover a broad range of domestic cleaning product viscosities. Optionally, wherein the fluid comprises a viscosity values of 1500 cP. This may be suited for applications related to washing up liquids or detergents. Optionally, wherein the fluid dispensing element is configured to be situated within 25 a cap element. This may provide the most effective location to control fluid dispensing without effecting the internal volume of the internal cavity. Optionally, wherein the cap element comprises a connecting portion, wherein the connecting portion is configured to attach the cap element to the fluid container. Optionally, wherein the connecting portion is a threaded surface. The above two 30 statements may ensure a firm attachment of the cap element onto the fluid container. 2025230726 11 Sep 2025 Optionally, wherein the cap element further comprises a flange portion. Optionally, wherein the flange portion extends to encapsulate the fluid dispensing element. The arrangement of the above two statements may funnel the expelled fluid and provide protection to the surroundings should the dispensed fluid stream be dispersed too erratically. 15 Optionally, wherein the fluid dispensing element is made from a plastic. Optionally wherein it is acrylic. The construction of the above two statements may enable the fluid dispensing element to strike a balance between weight and strength. This may enable usage across a broad range of applications. Optionally, wherein the thickness of the walls of the fluid dispensing element is 1m. Optionally, wherein the thickness of the first shelf is 1mm. Optionally, wherein the thickness of the second shelf is 1mm. Optionally, wherein the thickness of the inlet shelf is 1mm. Optionally, wherein the thickness of the mouth shelf is 1mm. The construction of the above five statements may enable the fluid dispensing element to strike a balance between weight, compactness and strength. This may enable usage across a broad range of applications. Optionally, wherein the fluid channel is configured to meander around the first shelf. 20 Optionally, wherein the fluid channel is configured to meander around the second shelf. Optionally, wherein the fluid channel is configured to meander around the inlet shelf. Optionally, wherein the fluid channel is configured to meander around the mouth 25 shelf. The above four statements may ensure an adequate obstruction and resistance within the fluid channel for fluid to flow through. This may ensure an adequate control for the dispensing mechanism. Optionally, wherein the fluid dispensing element further comprises a mouthpiece, wherein the mouthpiece comprises a dispersing portion. This may enable a more 30 uniform stream of expelled fluid. 2025230726 11 Sep 2025 15 Optionally wherein the dispersing portion is a three point star. This may be an effective shape to achieve the required dispersion for fluid leaving a slit as it does in the described arrangement. Optionally wherein the mouth piece is configured to be situated within or adjacent the mouth portion of the fluid dispensing element. This may enable the dispersing portion to be the final point of contact with the fluid before the fluid is dispersed from the fluid container. In accordance with a second aspect of invention, there is disclosed a fluid dispensing assembly, wherein the fluid dispensing assembly comprises: a fluid container; a fluid dispensing element in accordance the first aspect; and a fluid; wherein the fluid container is configured to store a fluid in a main cavity; wherein the fluid dispensing element is configured to dispense fluid through a mouth portion. This may be an effective arrangement to dispense fluid from a fluid container in a controlled manner that prevents leakage and provides a dispensing sensitivity that a user may work effectively with. Optionally, wherein the fluid dispensing element comprises a cap element in accordance with the first aspect. 20 In accordance with a third aspect of invention, there is disclosed a fluid dispensing assembly, wherein the fluid dispensing assembly is a bottle of washing up liquid. In accordance with a fourth aspect of invention, there is disclosed a method of dispensing a fluid from a fluid container, wherein the method comprises the steps of the fluid: 25 forcibly entering a fluid channel and flowing in a first direction; encountering a first surface when within the fluid channel and changing direction to a second direction, wherein the second direction is substantially perpendicular to the first direction, wherein the first surface partially obstructs the flow of the fluid within the channel, 30 exiting the fluid channel. Advantageously, this methodology may increase the resistance to fluid flow out of the fluid container and as such increase the time it 2025230726 11 Sep 2025 takes for a control volume of fluid to exit the fluid container. This increased time for dispensing may provide greater control to a user who may now more accurately dispense the correct amount of fluid for the task required and have a greater margin for error to stop once the desired amount of fluid is dispensed. Here, increased 5 error margin may be defined as a lower fluid volume expelled within a unit of time. This resistivity also decreases the sensitivity of the dispensing mechanism and the applied force for dispensing the fluid onto the fluid container may have a less extreme effect on the fluid exiting the container as a result which may reduce unintentional over dispensing. The shelf arrangement may also have a minimal 0 effect on the volume it occupies within the fluid container and hence allow for greater space for storing liquid. This shelved arrangement may further prevent leakage. Optionally, wherein the method further comprises the steps of the fluid: encountering a second surface within the fluid channel and changing 15 directions to a third direction prior to exiting the fluid channel, wherein the third direction is substantially perpendicular to the first direction, wherein the third surface partially obstructs the flow of the fluid within the channel. This may advantageously increase resistance of the mechanism once more and allow for greater control. It may also aid to reduce unwanted leaking by providing an 20 additional surface to capture escaped fluid from the main cavity of the container. Optionally, wherein the method further comprises the steps of the fluid: encountering a third surface when within the fluid channel and changing directions to the first direction, wherein the fluid encounters the third surface before the second surface. This may enable the meandering profile. This may be a vertical 25 surface that is impacted prior to the second surface and may as such enable the vertical profile of the meander. Optionally, wherein the method further comprises the steps of the fluid: encountering a fourth surface when within the fluid channel and changing directions to the first direction, wherein the fluid encounters the fourth surface after 30 the second surface. This may enable the meandering profile. This may be a vertical surface that is impacted prior to the mouth portion and may as such enable the vertical profile of the meander. Optionally, wherein the first surface is a first side of a first shelf that is configured to partially obstruct the fluid channel. 2025230726 11 Sep 2025 15 Optionally wherein the second surface is a first side of a second shelf that is configured to partially obstruct the fluid channel. Optionally wherein the third surface is a lateral surface that partially defines the fluid channel. Optionally wherein the fourth surface is a lateral surface that partially defines the fluid channel. The above four statements provide surfaces that obstruct the fluid flow and increase the time to dispense. This increases the resistance to fluid flow within the fluid channel and enables further control of the dispensing whilst limiting leakage. Brief Description of Figures Figure 1 shows a perspective view of a fluid dispensing element of a first embodiment. Figure 2 shows the fluid dispensing element of Figure 1 annotated with external dimensions. Figure 3 shows a cross sectional view of a vertical plane through the fluid dispensing element of Figures 1 and 2. Figure 4 shows a cross sectional view of a vertical plane through the fluid dispensing element of a second embodiment. Figure 5 shows a mouthpiece separated from the fluid dispensing element of either the first or second embodiments. 20 Figure 6 shows an isolated perspective view of the mouth piece of Figure 5. Figure 7 shows a perspective view of a washing up liquid bottle. Figures 8a-d show various views of the washing up liquid bottle of Figure 7. Figures 9 a & b show front on, side on and top views of the washing up liquid bottle of Figures 7 and 8 annotated with external dimensions of two separately sized bottles. 25 Figures 10a-e show various views of a second embodiment of a washing up liquid bottle. Figure 11 shows a flowchart showing a method of dispensing a fluid from a fluid container. Detailed Description of Figures 2025230726 11 Sep 2025 Figure 1 shows a fluid dispensing element for a fluid container, wherein the fluid dispensing element comprises: an inlet; a fluid channel; a mouth portion; and a first shelf; wherein the inlet is configured such that fluid from a main cavity of the fluid container is configured to enter the fluid channel; wherein the mouth portion is 5 configured to expel fluid out of the fluid channel; wherein the fluid channel is positioned between the inlet and the mouth portion, wherein a proximal end of the fluid channel is configured to be adjacent the inlet and a distal end of the fluid channel is configured to be adjacent the mouth portion; wherein the first shelf is positioned between the inlet and the mouth portion, wherein the first shelf is configured to 0 partially obstruct the fluid channel such that at least a portion of the fluid channel meanders and wherein the fluid channel extends in at least a first and a second direction, wherein the first and the second direction are angularly separated. In particular, Figure 1 shows a perspective view of the fluid dispensing element 10 isolated from any fluid container that it may be attached to during use. In use, the 15 fluid dispensing element 10 provides a controlled dispensing arrangement for fluid held within the main cavity of said fluid containers to an external atmosphere. Figure 1 shows the fluid dispensing element 10 oriented such that the inlet 11 is seen at the top and the mouth portion 13 is at the bottom of the Figure. This is an exemplary orientation for the in use dispensing mechanism implemented by the fluid dispensing 20 element 10. In such exemplary embodiment the mouth portion 13 is the lowest point of the fluid dispensing element 10 (or fluid dispensing assembly comprising said fluid dispensing element and the fluid container) and the inlet 11 being spatially above the mouth portion 13. Such orientation utilises gravity to ensure the expelled fluid passively falls to its intended target, for example, onto a surface to be cleaned (not 25 shown). Figure 1 also shows a view into the fluid channel 15 from the free width or gap adjacent a first shelf 17 situated proximal to the inlet 11. The fluid channel 15 refers to the passageway for fluid flow between the inlet 11 and the mouth portion 15. The fluid channel 15 extends in-between the inlet 11 and the mouth portion 13 and 30 provides a path for fluid to travel through the length of the fluid dispensing element 10 and exit the fluid container. Through this same free width or gap, a portion of the second shelf 19 is also visible. The second shelf 19 being located in between the first shelf 17 and the mouth portion 13. This second shelf 19 is an entirely optional addition and the fluid channel 10 is sufficiently resistant to fluid flow with only one shelf 35 present (the first shelf 17). However, in some embodiments having two shelves may be advantageous. The amount of shelves may be particularly dependant on the fluid viscosity held within the container, with less viscous fluids benefitting from a two- 2025230726 11 Sep 2025 shelf arrangement. For example, a fluid dispensing element 10 serving to dispense a washing up detergent with a viscosity of 1500 cP may be best equipped with two shelves in some embodiments. The first shelf 17 is the first partial obstruction within the fluid channel 15. This partial 5 obstruction, along with the lateral surface of the fluid dispensing element (the inner cylindrical walls of the fluid dispensing element defining the fluid channel) define a passage for the dispensing fluid and shape the fluid channel 15 such that it meanders from a first direction to a second direction. Here, the first direction is that in which the fluid channel 15 extends to accommodate the fluid when it first enters the fluid 0 channel 15 from the inlet 11. This is aligned with the fluid dispensing element’s 10 longitudinal direction in this embodiment. Alternatively, the first direction can be described as the direction in which the fluid travels as it passes through the inlet 11 into the fluid channel 15. The second direction is angularly separated from the first direction in a substantially horizontal direction. More specifically, the second direction 15 is in the direction of the extension of the first shelf 17. Here, the direction of extension of the first shelf 17 is defined as that from its point of attachment at the lateral inner surface of the fluid dispensing element towards the centre of the fluid channel 15. In other embodiments, the second direction need not be as horizontal as that seen in Figures 1 and 2 and may obstruct the fluid channel to a lesser extent. 20 In the embodiment seen in Figure 1, both the first and second shelves 17, 19 take the form of hemispheres, with the curved portions attached to the lateral inner surface of the fluid dispensing element. The flat portion of each hemisphere extending across the diameter of the fluid channel 15. In embodiments where the fluid dispensing element 10 is not shaped as a hollow cylinder (or comprises circular geometry), the 25 first and second shelves 17, 19 may comprise a portion that lines the inner geometry of the fluid dispensing element and have a face or edge that extends across its width at a location proximal to the centre of the fluid channel 15. This need not be a circular or curved lining. As such, multiple shapes of the shelves may be possible dependant on the shape of the fluid dispensing element 10. The shape of the shelves 17, 19 will 30 suffice to fulfil their purpose so long as they extend across (in a substantially horizontal direction) a substantial portion of the inner lumen of the fluid dispensing element 10 and in doing so defining a meandering fluid channel 15 that extends through the length of the fluid dispensing element 10. The first 17 and second shelves 19 are vertically separated (wherein the vertical 35 direction is defined as that between the inlet 11 and the mouth portion 19) and are attached to the fluid dispensing element 10 on substantially opposite sides to one 2025230726 11 Sep 2025 another. In line with this, the second shelf 19 in Figure 1 is seen to extend in a third direction, wherein the third direction is substantially horizontal and is the reverse of the second direction. As a result of this, the second shelf 19 too partially obstructs the fluid channel 15 and the fluid channel 15 once again meanders with the second 5 shelf 19 to extend in this third direction. In an exemplary embodiment (not seen in Figure 1), the first and second shelves 17, 19 are configured to partially overlap when viewed from the direction of the inlet 11 towards the mouth portion 13. For said embodiments, the fluid within the fluid channel 15, when travelling from the inlet 11 to the mouth portion 13 may completely meander around both the first 17 and second shelves 19. In embodiments where the first 17 and second shelves 19 do not completely overlap in this plane, only a portion of said fluid may meander (the portion that impacts the first 17 and second shelves 19). The unobstructed passage in between the two shelves 17, 19 may allow for a central stream from the inlet 11 to the mouth portion 19. The fluid channel 15 may therefore 15 either take the form of a completely meandering profile between the first and second shelves 17, 19 (where there is no central stream) or only a partially meandering profile i.e. wherein only a portion of the fluid channel 15 meanders. For both these embodiments, the fluid channel 15 can be described as forming a chicane, S shaped or zig-zag profile. 20 Although not seen in the embodiments of Figures 1-6, the fluid dispensing element 10 may further comprise additional shelves. The fluid dispensing element 10 may further comprise an inlet shelf situated at the inlet 11. In such embodiments, the inlet shelf 11 shall define an inlet opening, wherein the inlet opening is the width of the inlet that is aligned with yet unoccupied by the inlet shelf. This has been previously 25 described as the free width or gap adjacent a shelf. It understood that any further reference from herein the description when relating to the width adjacent any shelf relates to this free width or gap. The fluid dispensing element 10 may also further comprise a mouth shelf situated at the mouth portion 13. For such embodiments, the mouth portion shall define a mouth opening, wherein the mouth opening is the 30 unoccupied width of the mouth portion by the mouth shelf. The mouth shelf 13 may be present in addition to the second shelf 19, or the second shelf 19 may be regarded as the mouth shelf if it is placed at, or proximal to, the mouth portion 13. The mouth opening, or the free width adjacent any of the shelves, and in either of these embodiments may be described as a slit. The mouth opening may further comprise 35 adjacent it on an external side a slit valve for additional resistivity and control in the fluid dispensing mechanism. 2025230726 11 Sep 2025 As is consistent with the above-described arrangement of the first 17 and second shelves 19, the fluid channel 15 may further meander around the inlet shelf and the mouth shelf respectively. As both the inlet and mouth shelves define the ends of the fluid channel 15, this meander is referred to as a partial meander. As the fluid channel is only defined between the inlet 11 and the mouth portion 13, this meander refers to the winding profile of the fluid channel when taken immediately from the portion adjacent the inlet shelf and when considering the direction of entry of the fluid. Similarly, it refers to the winding profile of the fluid channel to the point adjacent the very distal end of the mouth shelf 13 and when considering the direction of exit of the fluid. It is to be noted that whilst the shelves described thus far and herein are functional and provide important resistivity and control to the fluid dispensing mechanism, they also provide a visual and aesthetic appeal. Figure 2 shows one embodiment of the fluid dispensing element 10 and provides 15 exemplary dimensions of the external geometry of the fluid dispensing element seen in Figure 1. In other embodiments of the fluid dispensing element 10, these dimensions may be different. Figure 2 also further shows the fluid dispensing element 10 as being a stepped hollow cylinder with three distinct diameters. However, as seen in Figure 3, the cylinder portion in which both the first and second shelves 17, 19 20 reside may be slightly conical or tapered (cylinder comprising angled sides). In other embodiments the fluid dispensing element 10 may be a regularly shaped hollow cylinder that is not stepped. Such embodiments may be situated within a distinct fluid container attachment assembly that accounts for this regular non-stepped profile (not shown). 25 It is also to be noted that the diameters of the fluid dispensing elements in other embodiments may be different to those seen in Figure 2 or as are to be described in Figure 3. Any internal feature of the fluid dispensing element such as the shelves described herein, is described with reference to a 14mm external diameter and a 12mm internal diameter (1mm thick walls) construction, however can be understood 30 to be scaled in proportion to other diameters. Figure 3 shows a cross section of the fluid dispensing element 10 in accordance with Figures 1 and 2. This cross sectional view outlines the internal structure of the fluid channel 15 and the dimensions of the exemplary embodiment. Other embodiments may comprise of different dimensions to that seen in Figure 3. In line with the 35 dimensions seen in Figure 3 the length of the first shelf 17, when taken from an inner lateral wall of the hollow cylinder that constitutes the fluid dispensing element, may 2025230726 11 Sep 2025 be in the range of 4 to 8 mm. It is seen at 6mm in the present embodiment. The range of lengths of the second shelf 19 are also within this range of the first shelf 17. In this particular embodiment seen in Figure 3, the first shelf and the second shelf are the same length. In other embodiments they may not be the same length. Other 5 embodiments may also have different shelf lengths to 6mm within the range identified. The width of the fluid channel 15 adjacent first shelf in the embodiment of Figure 3 (as previously described as a free width or gap) is seen at 6 mm. This distance is the shortest distance from the distal end of the first shelf 17 to the inner lateral surface of the fluid dispensing element (or the hollow cylinder that constitutes the fluid dispensing element). As outlined before, this is the width of the fluid channel 15 that is adjacent, aligned and unoccupied by the first shelf 17. However, in embodiments where the length of the first shelf 17 is different, this free width will naturally also be different. Therefore for a fluid dispensing element 10 with an internal width or 15 diameter of 12 mm and the first shelf 17 being in the range of 4 to 8 mm, the gap width adjacent the first shelf will range between 4 to 8mm too to make up the total inner diameter (or width for non-circular fluid dispensing elements). Similarly, the width of the fluid channel adjacent the second shelf in this embodiment of Figure 3 is seen at 6mm. Once again, this is a measure of the shortest distance from the distal 20 end of the second shelf 19 to the inner lateral surface of the fluid dispensing element (or the hollow cylinder that constitutes it). And in line with the description of the free width adjacent the first shelf 17, this free width may vary in a similar range to constitute the inner diameter. This width adjacent the first and second shelves 17, 19 is the width available for fluid flow through the fluid channel 15. 25 The first and second shelves in the present embodiments are dimensioned so as to extend up to or just short of the midpoint of the inner width / diameter of the fluid dispensing element 10. In other embodiments, especially in those where the first and second shelves 17, 19 are configured to overlap, these first 17 and second shelves 19 may extend beyond this midpoint of the fluid dispensing element 10. For such 30 embodiments (not seen), the length of the first and second shelves 17, 19 may be 6 to 8mm for fluid dispensing elements with 12mm internal widths / diameters. For a different sized fluid dispensing elements, the same ratio of shelf length to fluid dispensing element widths / diameters may apply. For example, a low range shelf length of 1 / 3 of the inner diameter / width of the fluid dispensing element and a high 35 range shelf length of 2 / 3. 2025230726 11 Sep 2025 The thickness of the walls of the fluid dispensing element 10, or more specifically the hollow cylinders, is 1mm in the embodiment of Figure 3. This may be different for other embodiments and may be dependent on machining capabilities in the manufacturing of the fluid dispensing element. This thickness may also be the 5 thickness that most optimally balances weight and strength of the fluid dispensing element so that it may be suited for a wide range of applications. The thickness of the first and second shelves may also be consistent with this. Although Figure 3 does not show an inlet or mouth shelf, the width adjacent to these features may be consistent with that as described for the first and second shelves. 0 For embodiments where the second shelf is the mouth shelf (by virtue of being positioned proximal to the mouth portion), the gap or width adjacent this shelf may be as that of the second shelf as described too. This may be in the range of 4-8mm. Furthermore, Figure 3 also shows that the vertical separation between the first and second shelves 17, 19 at 3mm. This may be different in other embodiments and be 15 for example in the range of 2-4mm for a fluid dispensing element 10 constructed of a hollow cylinder of a similar size. Should the size be different to said hollow cylinder, the separation of these shelves may be consistent with a ratio as is to be described and one that is in relation to the free width or gap adjacent to the shelves themselves. Although no inlet shelf is seen in Figure 3, said inlet shelf and first shelf may be 20 separated by a similar height. The dimensions outlined in Figure 3 enable calculations of the ratio of the gap width with respect to the height of separation between proximal shelves. This may standardise the fluid channel 15 parameters across a range of fluid dispenser element 10 diameters. As such, in the embodiment seen in Figure 3, the ratio of the width of 25 the fluid channel 15 (the free width or gap) adjacent the first shelf 17 against the height of separation of the first shelf 17 and second shelf 19 is 2:1. Similarly, the ratio of the width of the fluid channel 15 adjacent the second shelf (the free width or gap) against the height of separation of the first shelf and second shelf is also 2:1. This ratio is also consistent for the width of the fluid channel adjacent the second 30 shelf against the height of separation of the second shelf 19 and the mouth portion 13. Furthermore, although not seen in Figure 3, for embodiments with an inlet shelf, the ratio of the width of the fluid channel adjacent the inlet shelf against the height of separation of the first shelf 17 and inlet shelf is also 2:1. And the ratio of the width of the fluid channel adjacent the first shelf 17 against the height of separation of the 35 first shelf 17 and inlet shelf is also 2:1. Note, this is a ratio that is seen in a broad range of embodiments. Other embodiments beyond the normal applications of the 2025230726 11 Sep 2025 fluid dispensing element may comprise other ratios. These other ratios may still provide a fluid channel that provides adequate resistance to the fluid flow without being too strenuous to overcome for a user that is exerting force on the fluid container to expel the fluid. 5 Figure 4 shows a cross section of a fluid channel 15 of a second embodiment of the fluid dispensing element 10a. This embodiment of the fluid dispensing element 10a comprises a distinct mouthpiece 21 located within the mouth portion 13a of the fluid dispensing element 10a. Both the two embodiments of the fluid dispensing element 10, 10a are stepped to comprise a larger diameter at this mouth portion that aids in 0 this accommodation. The mouthpiece may alternatively reside within the extension of the fluid channel 15 (i.e. area of the same diameter as the fluid channel 15). The fluid dispensing element 10a of this second embodiment is dimensionally different to the first embodiment 10. However, the ratio relationship of the free widths or gap adjacent the shelves with respect to the separation of adjacent shelves as discussed 15 is maintained across both embodiments at 2:1. Figure 5 shows this mouthpiece 21 as distinct to the fluid dispensing element 10, 10a as described above. Figure 6 shows this mouthpiece 21a in isolation. This mouthpiece comprises a dispersing portion 23 in the form of a three point star. This dispersing portion is situated concentrically within the mouth portion 13, 13a of the fluid channel 20 15, 15a. The mouthpiece aids in dispersing the fluid in a more uniform stream. The fluid dispensing element 10, 10a as described above is configured to be situated in a cap element 25. Although not limited to the following application, the fluid dispensing element 10, 10a is particularly useful when embedded within a cap element 25 of a bottle of washing up liquid 30. However, other domestic and commercial fluid 25 containers may also benefit from the above described arrangement. In line with this, the viscosities of fluid that may be dispensed from a fluid container fitted with the fluid dispensing element 10, 10a may range between 500 to 100,000 cP. For most washing up liquid applications this value may be in the region of 1500 cP ±1000 or any other suitable value. The surfactant level for such fluid may range between 3%-30 40%. A washing up liquid bottle 30 comprising the fluid dispensing element 10 and the cap element 25 in which it is situated is shown in Figures 7-9. These figures show only an external view of the fluid dispensing assembly. Not seen in these figures is the attachment mechanism between the cap element 25 and the fluid container (bottle in 35 this embodiment). Said attachment being enabled with a connecting portion which may be a threaded surface (not shown) of the cap element 25 and a complementary 2025230726 11 Sep 2025 thread on the top of the bottle or fluid container (also not shown). Some embodiments of the cap element 25 may comprise a flange portion 27 as seen in Figures 7-9. Here, the flange portion 27 is an encapsulating wall around the fluid dispensing element 10 that protects the surroundings from an erratically expelled stream of fluid. 5 The attachment between the cap element 25 and the fluid dispensing element 10 may be through a friction fit mechanism. The mouth portion 13 of the fluid dispensing element 10 or a circumference extended from this portion may reside within a recess of the cap element 25. Figure 7 shows the washing up liquid bottle 30 from a top perspective view that better 0 outlines this flange portion 27 and its encapsulation of the fluid dispensing element 10. Here, the fluid dispensing element is located centrally within the cap element 25 but is seen to be covered by screw on lid 29. As such, although not seen, the cap element 27, comprises a further external thread for attachment to this screw on lid 29. The fluid dispensing element 10 may initially be covered with a plastic or silicone 15 film (not seen) that sits between the mouth portion 13 of the fluid dispensing element the screw on lid 29 and prevents any fluid leaking during storage or transit of the washing up liquid bottle 30. This film will be required to the pierced or removed prior to use to enable the fluid to exit the fluid channel 15. Also not seen here is a slit valve that is situated adjacent or within the mouth portion (on an external side). This slit 20 valve may provide improved resistivity and pressure control in the fluid mechanism. It may also provide an additional obstacle to passive fluid flow out of the fluid dispensing element 10 or washing up liquid bottle 30. In use, the washing up liquid bottle 30 is likely to be stored in a manner inverted to that seen in Figure 7 with the fluid dispensing element 10 at the bottom of the figure. 25 Such orientation enables the fluid to be in a position within the bottle 30 to be dispensed more efficiently. This is because the fluid is already collected (by virtue of bottle orientation and gravity) adjacent the dispensing end of the washing up liquid bottle 30. The fluid dispensing element 10 is particularly effective in such scenario as in enables storage in this orientation without the leakage of the fluid out of the 30 washing up liquid bottle via gravity. A conventional storage orientation with the dispensing end of the washing up liquid bottle 30 at the top and away from the influence of gravity on the fluid is still possible with the present embodiment of the washing up liquid bottle 30. However, this orientation will require the user to invert the washing up liquid bottle 30 and wait till the fluid inside flows towards the 35 dispensing end. Here, the dispensing end is the end comprising the cap element 25 or fluid dispensing element 10. 2025230726 11 Sep 2025 Figures 8a-d shows additional views of the washing up liquid bottle 30 seen in Figure 7. Figures 9a and 9b shows orthogonal views of the same. The dimensions listed in these figures are merely of two exemplary embodiments. Other embodiments of washing up liquid bottles 30 or other fluid containers may be dimensioned differently. 5 Both the fluid dispensing element, cap element and the bottle or fluid container may be constructed of a plastic. The cap element and the bottle may be constructed of a deformable plastic. The cap element may be constructed of a more rigid plastic such as an acrylic. Figures 10a-e shows a second embodiment of a washing up liquid bottle 30a. This second embodiment comprises an elliptical cross-section that is best seen in Figures 10d and 10e. Other embodiments of washing up liquid bottles may comprise a cross section that is circular in part or that is circular throughout. Figure 11 shows a flowchart outlining a methodology 40 of dispensing a fluid from a fluid container. A first step 41 in the methodology is for a fluid, that is held within the 15 cavity of a fluid container, to forcibly enter a fluid channel. The fluid here entering the fluid channel in a first direction (the direction of extension of the fluid channel in this portion). This step may be driven by a user exerting a force on the fluid container that may cause its walls to deform and reduce its internal volume. This may increase the pressure within the fluid container and force the fluid out and into the fluid 20 channel of the fluid dispensing element. Once the fluid is within the fluid channel, a second step 42 relates to the fluid encountering or impacting a first surface. Said impact changing the direction of the fluid from that of its initial entry into the fluid channel (the first direction) to the second direction. The second direction may be substantially perpendicular to the first direction. In terms of the fluid dispensing 25 element described above, this first surface is a first side of the first shelf. This first side of the first shelf is the surface that faces the inlet. A final step 43 of the methodology relates to the fluid exiting the fluid channel and preferably onto a surface to be cleaned or a sponge. A method step may also comprise storing the fluid container with the fluid dispensing element residing at the bottom. 30 Although not shown, and for embodiments that comprise more than one shelf, the method may further comprise the steps of the fluid, encountering a second surface within the fluid channel and changing directions to a third direction prior to exiting the fluid channel. This second surface may be a first side of the second shelf as described above and that faces the inlet of the fluid dispensing element. Here, the 35 third direction may be substantially perpendicular to the first direction and the reverse direction to the second direction. Furthermore, this movement down the fluid channel 2025230726 11 Sep 2025 may be facilitated by a portion of the fluid encountering and impacting third and fourth surfaces. Here, a third surface may be encountered after the first surface (first shelf) and prior to a second surface (second shelf) and the fourth surface may be encountered after the second surface and prior to exiting the fluid channel. The third 5 and fourth surface in such arrangements may be the lateral inner surfaces of the fluid dispensing element and which partially define the fluid channel. Further embodiments are also envisaged. It is to be understood that any feature described in relation to any one embodiment may be used alone, or in combination with other features described and may also be used in combination with one or more 0 features of any other of the embodiments, or any combination of any other of the embodiments. Furthermore, equivalents and modifications not described above may also be employed without departing from the scope of the invention, which is defined in the accompanying claims. 15 In some examples, one or more memory elements can store data and / or program instructions used to perform a method to manufacture the apparatus described herein. This may particularly relate to a processor used to determine the steps to be performed, and when each step has been completed. Embodiments of the disclosure provide tangible, non-transitory storage media comprising program instructions 20 operable to program a processor to said method. The processor / controller of such method of manufacture (and any of the methods, activities or instructions outlined herein) may be implemented with fixed logic such as assemblies of logic gates or programmable logic such as software and / or computer program instructions executed by a processor. Other kinds of programmable logic 25 include programmable processors, programmable digital logic (e.g. a field programmable gate array (FPGA), an erasable programmable read only memory (EPROM), an electrically erasable programmable read only memory (EEPROM), an application specific integrated circuit (ASIC) or any other kind of digital logic, software, code, electronic instructions, flash memory, optical disks, CD-ROMs, DVD 30 ROMs, magnetic or optical cards, other types of machine-readable mediums suitable for storing electronic instructions, or any suitable combination thereof.
Claims
1. A fluid dispensing element for a fluid container, wherein the fluid dispensing element comprises:an inlet;5 a fluid channel;a mouth portion; anda first shelf;wherein the inlet is configured such that fluid from a main cavity of the fluid container is configured to enter the fluid channel;10 wherein the mouth portion is configured to expel fluid out of the fluidchannel;wherein the fluid channel is positioned between the inlet and the mouth portion, wherein a proximal end of the fluid channel is configured to be adjacent the inlet and a distal end of the fluid channel is configured to be adjacent the mouth15 portion;wherein the first shelf is positioned between the inlet and the mouth portion,wherein the first shelf is configured to partially obstruct the fluid channel such that at least a portion of the fluid channel meanders and wherein the fluid channel extends in at least a first and a second direction, wherein the first and the 20 second direction are angularly separated.
2. The fluid dispensing element of claim 1, wherein the fluid dispensing element comprises a second shelf.
3. The fluid dispensing element of claim 2, wherein the second shelf is configured to partially obstruct the fluid channel such that at least a portion of the fluid channel 25 meanders and extends in a third direction.
4. The fluid dispensing element of any preceding claim, wherein the first shelf extends at least partially in a horizontal direction from a lateral surface of the fluid dispensing element, optionally wherein the first shelf extends in the second direction.2025230726 11 Sep 20255. The fluid dispensing element of any preceding claim, when dependant on claim 2, wherein the second shelf extends at least partially in a horizontal direction from a lateral surface of the fluid dispensing element, optionally wherein the second shelf extends in a third direction, optionally wherein the second shelf extends towards the 5 first shelf.
6. The fluid dispensing element of any preceding claim, wherein the fluid channel forms a chicane, S or zig-zag profile.
7. The fluid dispensing element of any preceding claim, wherein the inlet comprises an inlet shelf, optionally wherein the inlet comprises an inlet opening, wherein the 0 inlet opening is the width of the inlet that does not comprise the inlet shelf.
8. The fluid dispensing element of any preceding claim, wherein the mouth portion comprises a mouth shelf, wherein the mouth opening is the width of the mouth portion that does not comprise the mouth shelf, optionally, when dependant on claim 2, wherein the second shelf is integral to the mouth portion, optionally15 wherein the second shelf is the mouth shelf.
9. The fluid dispensing element of any preceding claim, wherein the width of the fluid channel adjacent the first shelf is 4-8mm, optionally wherein it is 6mm, wherein the width is defined as the space between a distal end of the first shelf and a portion of a lateral surface of the fluid dispensing element adjacent the distal end 20 of the first shelf, optionally wherein the width is defined as that available for fluid flow adjacent the first shelf; and / orwhen dependant on claim 2, wherein the width of the fluid channel adjacent the second shelf is 4-8mm, optionally wherein it is 6mm, wherein the width is defined as the space between a distal end of the second shelf and a portion of a 25 lateral surface of the fluid dispensing element adjacent the distal end of the second shelf, optionally wherein the width is defined as that available for fluid flow adjacent the second shelf; and / orwhen dependant on claim 7, wherein the width of the fluid channel adjacent the inlet shelf is 4-8mm, optionally wherein it is 6mm; and / or30 when dependant on claim 8, wherein the width of the fluid channel adjacentthe mouth shelf is 4-8mm, optionally wherein it is 6mm.
10. The fluid dispensing element of any preceding claim, when dependant on claim 2, wherein the first shelf and the second shelf are separated by a height of 2-4mm, optionally by 3mm; and / or2025230726 11 Sep 2025wherein the first shelf and the inlet are separated by a height of 2-4mm, optionally by 3mm; and / orwhen dependant on claim 2, wherein the second shelf and the mouth portion are separated by a height of 2-4mm, optionally by 3mm.5 11. The fluid dispensing element of any preceding claim, when dependant on claim2, wherein the ratio of the width of the fluid channel adjacent the first shelf against the height of separation of the first shelf and second shelf is 2:1, optionally wherein the ratio of the width of the fluid channel adjacent the second shelf against the height of separation of the first shelf and second shelf is 2:1; and / or0 when dependant on claim 7, wherein the ratio of the width of the fluidchannel adjacent the inlet shelf against the height of separation of the first shelf and inlet shelf is 2:1, optionally wherein the ratio of the width of the fluid channel adjacent the first shelf against the height of separation of the first shelf and inlet shelf is 2:1; and / or15 when dependant on claim 2, wherein the ratio of the width of the fluidchannel adjacent the second shelf against the height of separation of the second shelf and mouth portion is 2:1.
12. The fluid dispensing element of any preceding claim, wherein the fluid dispensing element comprises a slit valve, optionally wherein the mouth portion 20 comprises the slit valve.
13. The fluid dispensing element of any preceding claim, when dependant on claim 2, wherein the first and second shelves are configured to at least partially overlap with one another, optionally wherein the first shelf is configured to at least partially overlap a cross sectional area of the second shelf.25 14. The fluid dispensing element of any preceding claim, wherein the fluiddispensing element is substantially shaped as a hollow cylinder, optionally wherein the fluid dispensing element is a hollow cylinder comprising a first shelf, optionally, when dependant on claim 2, a second shelf, optionally, when dependant on claim 7, an inlet shelf, optionally, when dependant on claim 8, a mouth shelf.30 15. The fluid dispensing element of any preceding claim, wherein the fluidcomprises viscosity values in the range 500 - 10000 cP, optionally wherein the fluid comprises a viscosity value of 1500cP.2025230726 11 Sep 20251516. The fluid dispensing element of any preceding claim, wherein the fluid dispensing element is configured to be situated within a cap element, optionallywherein the cap element comprises a connecting portion, wherein the connecting portion is configured to attach the cap element to the fluid container, further optionally wherein the connecting portion is a threaded surface.
17. The fluid dispensing element of any preceding claim, wherein the cap element further comprises a flange portion, optionally, wherein the flange portion extends to encapsulate the fluid dispensing element; and / orwherein the fluid dispensing element is made from a plastic, optionally wherein it is acrylic; and / orwherein the thickness of the walls of the fluid dispensing element is 1m, optionallywherein the thickness of the first shelf is 1mm, optionally, when dependant on claim 2,wherein the thickness of the second shelf is 1mm, optionally when dependant on claim 7,wherein the thickness of the inlet shelf is 1mm, optionally when dependant on claim 8,wherein the thickness of the mouth shelf is 1mm.20 18. The fluid dispensing element of any preceding claim, wherein the fluid channelis configured to meander around the first shelf, optionally, when dependant on claim 2, wherein the fluid channel is configured to meander around the second shelf, optionally, when dependant on claim 7, the inlet shelf, optionally, when dependant on claim 8, the mouth shelf; and / or25 wherein the fluid dispensing element further comprises a mouthpiece,wherein the mouth piece comprises a dispersing portion, optionally wherein the dispersing portion is a three point star, optionally wherein the mouth piece is configured to be situated within or adjacent the mouth portion of the fluid dispensing element.30 19. A fluid dispensing assembly, wherein the fluid dispensing assembly comprises:a fluid container;2025230726 11 Sep 2025a fluid dispensing element in accordance with any of claims 1-18; anda fluid;wherein the fluid container is configured to store a fluid in a main cavity;wherein the fluid dispensing element is configured to dispense fluid through a 5 mouth portion.
20. The fluid dispensing assembly of claim 19, wherein the fluid dispensing element comprises a cap element in accordance with any of claims 16-17.
21. A fluid dispensing assembly, wherein the fluid dispensing assembly is a bottle of washing up liquid.10 22. A method of dispensing a fluid from a fluid container, wherein the methodcomprises the steps of the fluid:forcibly entering a fluid channel and flowing in a first direction;encountering a first surface when within the fluid channel and changing direction to a second direction, wherein the second direction is substantially15 perpendicular to the first direction, wherein the first surface partially obstructs the flow of the fluid within the channel,exiting the fluid channel.
23. The method of claim 22, wherein the method further comprises the steps of the fluid:20 encountering a second surface within the fluid channel and changingdirections to a third direction prior to exiting the fluid channel, wherein the third direction is substantially perpendicular to the first direction, wherein the third surface partially obstructs the flow of the fluid within the channel.
24. The method of any of claims 22 or 23, wherein the method further comprises25 the steps of the fluid:encountering a third surface when within the fluid channel and changing directions to the first direction, wherein the fluid encounters the third surface before the second surface; and / orwhen dependant on claim 23, wherein the method further comprises the30 steps of the fluid:2025230726 11 Sep 2025encountering a fourth surface when within the fluid channel and changing directions to the first direction, wherein the fluid encounters the fourth surface after the second surface.
25. The method of any of claims 22-24, wherein the first surface is a first side of a first shelf that is configured to partially obstruct the fluid channel, optionally, when dependant on claims 23, wherein the second surface is a first side of a second shelf that is configured to partially obstruct the fluid channel, optionally, when dependant on claim 24, wherein the third surface is a lateral surface that partially defines the fluid channel, optionally, when dependant on claim 24, wherein the fourth surface is a lateral surface that partially defines the fluid channel.