HUP1100039A2 - Dispensing unit - Google Patents

Description

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Feeder unit COPY

The invention relates to a dispensing unit for dispensing liquids. More particularly, it relates to a unit for dispensing liquids, vapors or the like.

In this case, the invention relates to the dispensing of cleaning or disinfecting liquids into a toilet bowl, cistern, or similar container that contains water or is flushed with water.

A variety of toilet hygiene devices are known. The simplest are slowly dissolving disinfectant tablets that can be placed in cisterns or toilet bowls. Other devices are also available for dispensing disinfectant or cleaning agents placed therein. Such devices comprise a container of a defined volume for holding the liquid and a holder by means of which it can be mounted in the toilet bowl or similar device. In order to ensure a continuous and controlled release of liquid, such devices are usually overly complicated.

In order to provide a continuous and controlled release of liquid, such devices may comprise a dispensing opening and be equipped with a sheet to absorb and dispense the liquid. This sheet may, for example, comprise capillaries which draw the liquid through the dispensing openings into the capillary openings by capillary action. These openings may, for example, be in the form of grooves cut into the sheet. When the capillary openings are full, the liquid contained therein emits a continuous fragrance, each time the toilet is flushed, water flows over the aforementioned liquid and thus the liquid is distributed in the flush water. During each flush, the water may prevent the liquid from evaporating, i.e., it closes the openings. The sheet with capillary openings also prevents water and/or debris from entering the opening. In other known devices, filters or wicks are used instead of capillary openings.

Among other things, there is a need for a device that is capable of dispensing a controlled amount of liquid into a container, preferably over a predetermined period of time, and that is of simple, cost-effective design.

In its approach according to the present invention, the invention provides a dispensing unit according to the features described in patent claim 1 for dispensing a refreshing liquid.

It has been found that the use of pre-defined compound orifices often provides better control and predictability of the rate of liquid delivery (i.e., discharge) from the container, resulting in better dosing. Compared to a single liquid orifice, a compound orifice has the advantage that at least one channel is available even when the other channels are clogged. Furthermore, the diameter of each channel can be set to be relatively small, so that the combined compound orifices have approximately the same discharge as a single orifice. Contrary to expectations, it is also possible that a relatively small orifice will have fewer orifices blocked by debris, while a relatively large orifice will have more easily blocked orifices.

One feature of each aperture is that it is of predetermined size and structure. For example, the size of each aperture or channel may be determined based on the desired dosing rate. Preferably, each aperture or channel of the dosing unit of the invention is substantially straight and/or has relatively smooth walls.

The size of the openings or channels, such as the diameter and length of the openings or channels, should be designed based on predetermined parameters, which may be a desired delivery volume at an approximate dosage rate. For example, the dosage unit may be arranged to have an output of approximately 35 milliliters over approximately 28 days, where the output is relatively continuous over the aforementioned period, similar to a prior art similar device.

In further presenting the invention, an embodiment thereof will be described with reference to the accompanying drawings. In the drawings:

Figure 1 shows different container shapes;

Figure 2 shows a compound channel liquid dispensing device;

Figure 3 shows another compound channel liquid dispensing device;

Figure 4 shows further container shapes according to the invention;

Figure 5 shows further container shapes according to the invention; and

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Figure 6 is a diagram showing the dosing rate as a function of different container shapes compared to the calculated and desired dosing rate.

Figure 7 shows a dosing unit.

In this specification, identical or similar components are provided with identical or similar reference numerals. The exemplary embodiments are not to be construed as limiting in any way, but are for illustrative purposes only.

Turning to the figures, Figure 1A shows a rectangular container; Figure 1B shows a cylindrical container having an axis horizontally disposed relative to the direction of gravity of the cylinder; and Figure 1C shows a container shape according to the invention, which the applicant has called the “Bala” shape.

The general description of these shapes is a container 1 containing a liquid 2, typically a viscous liquid with a viscosity higher than 2 Pa. Due to the shape of the liquid delivery device 3 placed in the container 1, it is located in the lower part of the container 1 (see the direction of gravity) and is in contact with the liquid 2 contained in the container 1, the container is slowly emptied by dispensing the liquid 2 with the help of the liquid delivery device 3. The embodiment is designed so that the 35 ml of liquid is emptied over a predetermined period of approximately 28 days.

To prevent a vacuum from forming in the container, which would prevent the liquid 2 from flowing out, an aeration opening 4 should be placed above the liquid surface, in this embodiment on the side wall 5 of the container 1 in line with the liquid delivery means 3. The aeration opening 4 ensures that the container volume 6 above the liquid 2 is in direct contact with the outside world.

As shown in the side wall 5 in side view and front view in FIGS. 2A and 2B , in one embodiment, the liquid delivery device 3 comprises a compound through-opening, thereby forming liquid delivery channels 20 arranged in the side wall 5 of the container 1 of predetermined size and/or shape, which may be the same for all corresponding container types 1, or for example one of the containers 1 shown in FIGS. 1A - C . Without being bound by any other definition than "predefined", in the context of this description, this channel 20 has at least one wall defining the aforementioned opening or channel 20, wherein the aforementioned at least one wall is pre-designed and manufactured according to the aforementioned designed dimensions with a relatively low needle

706064/BO in addition to the gap, which tolerance may be, for example, a predetermined tolerance conventional in pressing, preferably a tolerance used in injection molding of plastic products and/or hole drilling, where the product will be approximately the same size as the channel 20 and/or the drilled hole. Preferably, the at least one wall mentioned above has at least one base portion which is substantially straight.

Without being bound by any theory, it appears that the channels found in commonly used filters do not all have a predetermined size and structure, which is contrary to the invention. Such filters may, for example, comprise sintered plastic in which the size and structure of the openings, i.e. the channels, are more or less random, and the size and shape of the openings or channels vary greatly.

Measurements performed with the invention show that the use of pre-defined sized compound openings leads to better control and predictability of the flow compared to the use of known filters. Without being bound by any theory, it appears that the pre-defined shape of the walls of the openings leads to better predictability of the flow. Furthermore, measurements show that when one or more openings become clogged and one or more openings remain open, this leads to the dispenser unit remaining usable for a longer period of time without failure.

Without being bound by any theory, it appears that debris such as relatively long fibers tend to become trapped in a filter, i.e., in the channel(s) therein, rather than these fibers covering or blocking the composite openings. Furthermore, since the size of the filter channels is more or less random, the fluid flow rate varies from filter to filter. For this reason, and for other reasons, the throughput of filters is relatively poorly predictable compared to the predetermined composite openings of the invention.

The liquid delivery device 3 may comprise, for example, substantially parallel channels 20 A-F, arranged in a mouthpiece 21 in specific embodiments (see FIGS. 2A, B). The mouthpiece 21 may be located on the side wall 5 of the container 1. The liquid delivery device 3 need not be located on the side wall 5 of the container 1, but may be located in any suitable location, for example near the bottom of the container 1.

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The mouthpiece 21 may be, for example, a molded product. The mouthpiece 21 may be cylindrical in shape, may further comprise a plug, and/or the cross-sectional view of the mouthpiece 21 may be T-shaped, such that when it is fully inserted into the opening 22 of the side wall 5, it rests on the edge 22A of the aforementioned side wall 5 (see Figure 2B).

Other embodiments of the liquid delivery means 3 are shown in front view and in side section in Figures 3A and 3B. Figures 3A and 3B show a liquid delivery means 3 in which the composite opening comprises channels 20 shaped like holes in the side wall 5. These holes may be, for example, pre-pressed or, for example, cut out by a drill, cutting tool or piercing tool during the manufacturing process. A suitably skilled person may find further alternatives. Optionally, the side wall may have a flange 23 extending from the surface of the side wall 5 towards the interior of the container 1 such that the channels 20 (as shown in Figures 2A, B and 3A, B) have a length “I” which is greater than the thickness “t” of the side wall 5. This flange 23 may further assist in supporting a plug-shaped mouthpiece 21, as shown, for example, in the case of 2A, B.

In one embodiment, the length "I" of the channels is less than or equal to about 30 millimeters, preferably less than or equal to about 20 millimeters, more preferably less than or equal to about 10 millimeters. In a practical embodiment, the length "I" of the channels is, for example, approximately 5 millimeters, or slightly less than 10 millimeters. Each channel has a diameter "d" less than or equal to about 3 millimeters, preferably less than or equal to about 1 millimeter, more preferably less than or equal to about 0.5 millimeters. These dimensions allow the channels to be manufactured at relatively low cost and with good results, with a relatively low risk of defects. For example, by using these dimensions, the press mold and/or the fluid delivery device 3 will not be too fragile, while product space filling problems in the press mold during production and/or assembly can be prevented. Furthermore, with the relatively small channel dimensions, the risk of channel blockage during production can be eliminated. The use of the above-mentioned recommended dimensions, i.e. the length "I" and the diameter "d", is also advantageous in terms of reproducing the dimensions of the channels, and from this

706064/ΒΟ resulting in better dosing. In an exemplary embodiment, the length “I” and diameter “d” of the channel 20 are 2.4 and 0.35 millimeters, respectively.

The size of each channel may be predetermined, for example, by the size of the mold and/or cutting tool. The tolerance and variance of the shape of the channels 20 should be kept at a relatively low level, at least as low as, for example, known filters in which the channels have a random shape, i.e., a shape and size that are significantly different from each other.

Preferably, the size, i.e. diameter and length, and/or shape of the at least two channels 20 are similar, so that each channel 20 is equally favored by the liquid, e.g. in terms of pressure sensitivity, surface friction, etc. In this way, the liquid in the container is, at least initially, distributed to essentially the same extent over each channel 20. In this description, the diameter of the channel 20 is understood to mean, for example, the width of the channel, where the channel 20 may be, for example, rounded or square in cross-section. The “equal preference for the liquid” used above can be achieved by the channels having approximately the same cross-section, i.e. each channel having the same throughput, but this does not necessarily mean the same shape.

In one embodiment, the liquid delivery device 3 has between two and twenty channels 20. The number of channels 20 may depend on the intended material dosing rate and/or the viscosity of the liquid, the intended use of the dosing unit, etc. An embodiment of the liquid delivery device 3 may, for example, include two, three, four, five, six, seven, eight, nine, or ten channels 20. Such a liquid delivery device 3 may be advantageous for dosing amounts of 2, 10, and 200 milliliters of liquid over a period of 10 to 200 days, more specifically, for dosing an amount of approximately 35 milliliters over approximately 28 days. A preferred number of channels (not shown in the measurement) is six.

The table below shows the measurement results of different dosing systems, i.e. the testing of the dosing unit with 3 different liquid delivery devices.

Dispensing system pcs Locked samples Clog length Acceptable Filter + simple channel 500 10 > 1 week NO 4 composite channels 500 0 - YES 8 composite channels 500 1 1 day YES Table: Clogging rate measured by test. for various dosing systems, 500 samples

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As can be seen from the measurements, the first tested dosing system was equipped with a filter and a single-channel dosing system, the second dosing system contained four 20 channels and the third dosing system was equipped with eight 20 channels. 500 samples from each dosing system were tested. The test lasted until the tank was empty, i.e. approximately 28 days or more. The four-channel liquid delivery device 3 showed no clogging during the entire test period and only one of the 500 samples of the eight-channel liquid delivery device 3 tested was clogged after one day. Both the four-channel and eight-channel dosing systems, as well as dosing systems with a different number of channels between four and eight, were found to be acceptable. As can be seen, of the dosing systems that also contained a filter, more than 10 clogged within a week.

In addition, it is also advantageous if the channels 20 are located close to each other. In this way, for example, a mouthpiece 21 or at least the liquid delivery device 3 is located within a small area, for example near the bottom of the container 1. Therefore, the aforementioned openings of the liquid delivery device 3 are located close to each other, at a distance "D", the distance "D"" being the distance between the edges of two adjacent channels 20. For example, the distance "D" between two adjacent channels 20 of the liquid delivery device 3 is less than or equal to approximately three millimeters, preferably less than or equal to approximately one millimeter or at least between five and 0.20 millimeters.

In the following part of the description, a further embodiment is presented, which is based on an unpublished European patent application, number 06076793.6, dated 27 September 2006, the entire contents of which are advantageously combined with a dosing unit according to the invention. By using the liquid delivery device according to the invention in the dosing device, as described in European application 06076793.6, the controllability and predictability of the liquid release over a predetermined time interval is further improved.

An existing need, which has not changed for a considerable time, is to develop a controlled and safe release, in particular one that can be maintained at a consistent and acceptable level until the container is nearly empty. In other words, the refreshing power of a dispensing device (for a 1 container) will be very uneven, which effectively makes the device impractical: too much fresh air 2

706064/ΒΟ refreshing liquid will be released when the tank 1 is almost full, while at the end, with the tank almost empty, the amount of refreshing liquid 2 will not be sufficient to ensure the desired refreshing level.

However, one of the difficulties is to overcome the relationship of the dosing rate (expressed in ml/day), which consists of the height of the liquid column H, the density of the liquid p and the viscosity of the liquid η; and the length L and diameter r of the channel of the liquid delivery device 3:

dosing = T— ^g (equation 1) ·η · L thus, it can be seen that while the height of the liquid column decreases when tank 1 empties, the liquid outflow 2 will also decrease, thus reaching the lowest dosing rate.

A numerical value indicates the change in the dosing rate, which is the ratio of the initial dosing rate to a dosing rate that occurs at 100% and 10% saturation of the container 1, as shown in the top and bottom views of Figures 1 A, B and C. Assuming that the composition of the liquid 2 does not change (which will be analyzed in more detail below), this value depends on the shape of the container 1 and is expressed as the ratio of the volume height at 100% and 10% saturation of the container 1. Ideally, the dosing rate remains constant over time regardless of the height and has a value of 1. Thus, when the volume filling is 10%, for a volume similar to a cube, the filling height will also be 10%, for a much more optimal characteristic, for example, a 25% height filling corresponds to a 10% volume filling. In practice, an acceptable value is in the range between 1 and 4, with 1 and 3 being recommended.3.

Referring to Figure 1A, for a rectangular shape, for a cylindrical shape, the height of the liquid column is directly proportional to the amount of filling liquid in the container. Thus, a filling level of 10% results in a height of 10%, i.e. a dispensing ratio of 10. Accordingly, for a rectangular shape, the dispensing rate varies significantly during use of the device.

Figure 1B shows an alternative shape that is more suitable for dispensing purposes, more specifically for toilets, as this shape essentially pinches

706064/ΒΟ can be placed under the rim of the toilet bowl and its diameter is designed to roughly correspond to the width of the rim (not shown in the figure). Thus, the diameter is in the range of 20-50 mm, preferably 35 mm. The container shown in Figure 1B is cylindrical and has a cylinder axis that is horizontal to the direction of gravity. Here, the dosing ratio is 5.8, since a first height H1 is 34 mm and a second height H2 corresponding to a 10% filling is 5.9. That is, the ratio is half as good as in the case of the rectangular shape shown in Figure 1A, which still deviates significantly from the calculated ideal value.

Finally, Figure 1C shows a shape according to the invention in which the dosing ratio 1-4 is achieved. More specifically, the container 1, which is shown in Figure 1C, is in the shape of a truncated cone with a sloping bottom wall. This shape results in a substantially larger volume portion located in the upper part of the container, thereby providing a dosing rate that is typically less than 3.3, more specifically a level height of 10.5 at a 10% fill, compared to a filling height of 33.5 at the initial fill, the resulting value being 3.2. Thus, a more constant dosing rate can be provided with the illustrated shape. More specifically, due to the sloping bottom wall, a relatively larger volume portion is discharged with a liquid column height that is relatively high, while the volume of the bottom of the container is relatively small compared to the remaining volume, which results in a relatively constant dosing rate. Only in the last part of the dosing cycle, when the volume approaches zero, does the liquid column height decrease significantly and thus the dosing rate drops.

Figure 4 shows another set of embodiments which are modifications of the truncated cone shape shown in Figure 1C (Figures 4A and 4B). Figures A and B each show three views, a top view at a 100% fill level; a middle view at a 100% fill level and a bottom view showing a cross-section of the embodiment along the container's own axis. More specifically, Figure 4 shows an embodiment in which the lower part of the container is designed to have an orientation that is much more vertical than the orientation of the higher part of the container. Thus, a smaller lower volume 7 is formed than the larger volume 8 located above it, thus ensuring that the liquid 2 contained in the larger volume 8 flows out at a relatively constant height along the horizontally located lower ridge 7. As a result, Figure 4

706064/BO a step shape 9 can be suitably formed, in which a small part of the volume is directed downwards, in order to form a high liquid column which is still acceptable for the desired flow rate.

Similarly, this lower volume is provided, with reference to Figure 4B, with an elongated channel 10 formed from the lower part of the container 1, for example by forming a tongue 11 in the lower half of the container, the wall of which forms a channel 10 with the side wall of the container. The dispensing speed of these further embodiments is much more advantageous and can be expected to be about 2.5 for the stepped form shown in Figure 4A and about 2.3 for the elongated tube shown in Figure 4B.

Figure 5 shows some further container shapes, which are further variations that deviate even further from the cylindrical shape. In more detail, the embodiments shown in Figure 5A and Figure 5B have a specially designed substantially vertical channel 12 that defines a substantially constant liquid column height for the majority of the liquid 2, which is largely contained in the larger volume 8 located above the channel 12. The dispensing rate of these embodiments is very close to the ideal value of 1, thus providing a continuously uniform dispensing rate. The embodiment shown in Figure 5A (which has a height H1 of 52 mm and a height H2 of 25.25 mm corresponding to a 10% fill) has a dispensing rate of approximately 2. In the embodiment shown in Figure 5B, the dispensing rate is 1.2 and has an initial height of 50 mm and a second height of 41 mm.

Figure 6 shows a plot of the dispenser's dispensing rate as a function of the different container shapes shown in Figure 1. Specifically, with a 28-day life, the truncated cone "Bala" shape 1C comes relatively closest to the ideal shape constant, with the dispensing rate being closest to 1 for essentially the entire duration, compared to the rectangular shape shown in Figure 1A and the cylindrical shape shown in Figure 1B.

Figure 7 shows a schematic cross-sectional view of a dosing device 13 in which the viscosity of the liquid 2 can be appropriately controlled so that the dosing rate in the liquid delivery device 3 can be precisely determined. The rinsing water cannot come into contact with the liquid inside the container 1.

706064/ΒΟ, due to the appropriate covering of the aeration opening 4, for example by means of a cover 14 as shown in the drawing, or by other covering means. Both the aeration opening 4 and the liquid transport means 3 are incorporated in a conventional side wall 5, thus providing an elegant way of opening both the outlet opening and the aeration opening, for example by using a tear-off seal 15, which, when pulled downwards, results in the opening of the cover 14. The liquid transport means 3 is provided with a water storage device in the form of a recess 17, which is designed to provide a water layer above or near the opening to prevent the liquid 2 from drying out. Thus, during use, during rinsing, water reaches the lower part of the side wall 5 and wets the liquid transport means 3. After adsorption, water remains in the recess 17, so that the liquid remains wet when it flows out of the liquid delivery channel 20. This structure provides a means of preventing the liquid 2 from drying out due to accidental blockage of the channels 20. Although generally undesirable, this blockage can be used as a last resort to stop the liquid discharge when the toilet is not in use and to drain the liquid from the channel 18 with the help of the flushing water, eliminating the blockage in the discharge channel 20. Although in this embodiment a recess is provided as a water retaining structure, in other embodiments, it is possible to use a rib-like protruding structure or a capillary structure.

Although only a side view of the cover 14 is shown in Figure 7, it is preferred that the cover 14 generally follows the contour of the container 1 and covers a large portion of the side wall 5, leaving a small opening downwards through which some rinsing water can enter to wet the liquid transport means 3, more specifically the opening at the end of the channel 20. The container may preferably be of a striking appearance, containing a coloured cleaning liquid. However, it has been found that the blue cleaning liquid may cause stains in the cup, which is not a very pretty sight. Thus, on the one hand it is desirable that the container contains a coloured substance, on the other hand the stains caused by the coloured substance are disturbing. To overcome this problem, it is preferred that the container contains transparent coloured walls and the liquid contained therein is a non-coloured transparent substance. Accordingly, the external appearance of the dispenser 13 is as if it contains a colored liquid.

706064/BO is a liquid, however, during use the liquid does not cause stains, as the material is a colorless transparent substance.

While certain embodiments of the invention have been described above, it should be understood that the invention may be used in a manner other than as described above. More specifically, the above description is for illustrative purposes only and does not limit the scope of the invention. It will be understood that modifications may be made to the invention by a person skilled in the art without departing from the scope of the invention as set forth below.

More specifically, an embodiment of a dispensing device may be arranged such that the container is designed to have a larger volume in the upper part of the container, whereby the dispensing rate, defined as the volume to height ratio determined by a container filling ratio of 100% and 10%, is between 1 and 4. Other arrangements are also possible. The container may be designed in the shape of a truncated cone with a sloping bottom wall; the lower part of the container may be designed to have an orientation that is more vertical than the orientation of the upper part of the container; the lower part of the container may be designed to have a channel between the liquid delivery means and the upper part of the volume; the liquid delivery means may be provided with a water retention structure designed to provide a water layer near the opening or above the opening to prevent the liquid from drying out; The water retaining structure may be formed as a recess in the wall in which the liquid conveying means is located; the aeration lip may be covered by a cover cap and may be located on the same wall of the container as the liquid conveying means, the aeration opening ensures direct aeration of the upper air volume of the container, and the cover cap is provided with a downward opening to ensure that the rinsing water is close to the liquid conveying means and to cover the aeration opening from the falling rinsing water; the container may comprise colored transparent walls within which the liquid is an uncolored transparent material.

In other embodiments, the device may be such that the liquid is ultimately dispensed in a vapor state, for example in the form of an insecticide, insect repellent, vermin control, air freshener, scented or anti-allergenic vapor. The liquid may be discharged onto an emanation sheet or into an emanation device.

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In some cases, the implementation may also apply to devices for dispensing vapors into the air. Despite the overshoot of the devices, it is possible for the device to dispense vaporous fragrances, insecticides, and the like, which have disadvantages, and the implementations presented above provide a simple, reliable means for these purposes.

The rate of discharge from the device can be determined by one or more of the following variables: the viscosity of the liquid; the size and design of the liquid delivery means, more specifically: the diameter d and the channel length I of at least one or each of the liquid delivery channels 20; the number of channels 20; and the height of the liquid column of the liquid. Preferably, these variables can be specified in relation to each other. For example, if a liquid has a relatively high viscosity, a combination of channels 20 can be selected that have a relatively large diameter.

In certain embodiments, the viscosity of the liquid may be 20 PAs or lower, preferably 10 PAs or lower, more preferably 6 PAs. It has been found that such viscosity values provide advantageous flow and dispensing characteristics, more particularly, a relatively continuous dispensing rate over a predetermined period of time, for example, approximately 28 days. The liquid column height of the dispensing device may be, for example, 200 millimeters or less, preferably 100 millimeters or less, more preferably 50 millimeters or less. It has been found that such liquid column height provides advantageous dispensing characteristics, more particularly, a relatively continuous dispensing rate over a predetermined period of time, for example, approximately 28 days. Such a liquid column height provides a practical container volume, for example, the dispensing device can be hung under the rim of a toilet bowl.

The liquid may include, for example, a cleaning agent, a disinfectant, an air freshener, a fragrance, an insecticide, a dewormer or an anti-allergenic agent. Certain embodiments of the dispensing device may also be used as an oil dispensing device, or as a liquid dispenser for plants or the like. The dispensing device is capable of dispensing near a bathtub and/or shower, and or above shoes, and or near toilets or cubicles, for example in changing rooms.

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In one embodiment, the dispensing device is used together with a component that interrupts the continuous liquid dispensing from the liquid delivery device 3. For example, such an interrupting component may include a means for moving the container 1 and/or the channel 20, whereby the liquid and the channels 20 are separated from each other and the liquid cannot flow into the channels 20. More specifically, this interrupting component may include a rotatable component for rotating the container 1 so that the top of the liquid level is below the channels 20. The interrupting component may include a closing component that closes the channels 20. The mouth portion 21 may also be arranged to be rotatable so as to close the channels 20 and prevent the liquid from flowing in or out. In a further exemplary embodiment, the vent 4 can be closed by means of a break-off component so as to prevent the outflow of liquid from the channel 20, for example by creating a low pressure in the container.

While certain embodiments of the invention have been described above, it should be noted that the invention may be used in a manner other than that described above. Specifically, the above description is for illustrative purposes only and does not limit the scope of the invention. It will be apparent to one skilled in the art that modifications may be made to the invention without departing from the scope of the invention as set forth in the claims set forth below.

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Claims (12)

Patent claims 1. A dispensing unit for dispensing refreshing liquids, comprising: - a container of a defined volume for storing the liquid; the container contains - a liquid delivery device placed at the bottom of the container and sized according to the liquid contained in the container to ensure the discharge of liquid from the liquid delivery device under the influence of gravity; and - an aeration opening that ensures aeration of the upper volume of the container, wherein the liquid delivery device comprises multiple liquid delivery openings, each liquid delivery opening having a predetermined size. 2. A dispensing device according to claim 1, wherein the openings comprise channels, preferably arranged substantially parallel to each other. 3. A dispensing device according to claim 1 or 2, wherein the openings are of substantially the same shape and/or size. A dispensing device according to any one of the preceding claims, wherein the length of the channels is less than or equal to 20 millimeters. 5. A dispensing device according to any one of the preceding claims, wherein the liquid delivery means comprises between two and ten openings, preferably between three and ten openings. A dispensing device according to any preceding claim, wherein each aperture has a diameter of 1 millimeter or less. 7. A dispensing device according to any one of the preceding claims, wherein said openings are located close to the bottom of the container. A dispensing device according to any one of the preceding claims, wherein the liquid delivery device comprises a mouthpiece which comprises the aforementioned multiple openings. 9. A dispensing device according to claim 8, wherein the mouthpiece is disposed in a wall of the container, wherein the mouthpiece comprises side channels which are closed by said wall. 10. A dispensing device according to any one of the preceding claims, wherein the dispensing device comprises a toilet hygiene device, wherein the holder is a 706064/BO “ holder, which is suitable for hanging the device on the toilet bowl or similar place. 11. A dispensing device according to any one of the preceding claims, wherein the aeration opening is covered by the cover cap and is located on the same wall of the container as the liquid delivery opening, the aeration opening providing direct aeration of the upper part of the container and the cover cap is provided with a downward opening to ensure that the rinsing water is close to the liquid delivery opening and to cover the aeration opening from the flowing rinsing water. 12. A dispensing device according to any one of the preceding claims, wherein the container is shaped such that the majority of the volume is in the upper part of the container, such that the dispensing rate, defined as a volume to height ratio, determined by a container fill ratio of 100% and 10%, falls in the range of 1 to 4. The authorized person: Dr. Bouizs Arpad patent case Λνό . member of the S.B.O. & K. Patent Attorney's Office H-1062 Budapest, Andrássy út U3. IKephone: 461-1000 Fax: 461-1099 706064/ΒΟ