US20070289054A1

US20070289054A1 - Toilet bowl cleanser dispenser device

Info

Publication number: US20070289054A1
Application number: US11/818,135
Authority: US
Inventors: Joseph Han; Jack Nguyen
Original assignee: Joseph Han; Nguyen Jack T
Current assignee: Fluidmaster Inc
Priority date: 2006-06-16
Filing date: 2007-06-13
Publication date: 2007-12-20
Also published as: WO2007149365A2; WO2007149365A3

Abstract

A toilet cleanser dispenser system includes a compartment for containing a cleansing agent, a housing at least partially enclosing the compartment, and a refill tube. A first portion of refill water is directed from a fill valve directly to an overflow tube through the refill tube, while a second portion of refill water is diverted to the housing. The second portion of refill water comes in contact with the cleansing agent forming a cleanser solution. The cleansing solution is then directed from the housing to the refill tube. The cleansing agent compartment is isolated with at least one water trap.

Description

RELATED APPLICATIONS

This application relates to, claims priority from, and incorporates herein by reference, as if fully set forth, U.S. Provisional Patent Application Ser. No. 60/814,387 filed on Jun. 16, 2006 and entitled “BLEACH TOILET BOWL CLEANSER DISPENSER DEVICE.”

BACKGROUND OF THE INVENTION

1. Field of the Invention
The present invention relates generally to cleanser dispenser systems for toilets.
2. Description of Prior Art and Related Information
Cleansing dispenser systems for toilets are commonly located in the toilet tanks. Conventional dispensers are often purchased as add-on, after-market products, and have some common drawbacks.
For example, dispensers typically are clipped to the wall of the toilet tank using clips. These clips often get in the way of the toilet lid, preventing the toilet lid from being able to fully close on the toilet tank.
Cleansing agents in the form of tablets, for example, which dissolve into the refill water upon contact may generate harmful fumes that can damage the interior components of the toilet tank. The need to prevent the escape of fumes has led to awkward and bulky structures that also cause the entire dispenser unit to take up the limited space within the toilet tank. Accordingly, certain dispenser units in the prior art do not allow the lid to close on a standard toilet tank, thereby creating a rocking or tilted appearance which is undesirable.
A toilet usually needs a refill water system that supplies adequate amount of refill water to the bowl while the fill valve restores water in the tank after flush. Siphonic toilets will not properly function if residual water inside bowl is not restored properly per the manufacturer's specification.
To conserve the cleansing agent and thus maximize its usage and lifespan, it is desirable not to dissolve the agent in the flush water that drains the toilet bowl, but only in the refill water that fills the bowl after the flush.
This way, a lesser amount of the cleansing agent is used with each flush, and the cleansing agent is used more efficiently as it is not being wasted with flushing water. To accomplish this, the cleansing agent must be fluidly coupled to the water line that refills the bowl, namely, between the fill valve and the overflow tube. Such an arrangement has required a variety of hoses, clips and mechanical fasteners to provide fluid communication from the dispenser unit to the overflow tube. Hoses can become loose, thereby dumping harmful chemicals into the toilet tank unknown to the consumer.
Further, conventional add-on dispenser units also present fluctuations in the water level therein, caused by the height differences between the top of an overflow tube and the mounting location of the unit. Thus, the concentration of the cleanser solution exiting such a prior art dispenser unit may vary with each toilet depending upon these height differences.
In addition, conventional dispensers that are connected to the refill system reduce some amount of refill water due to the pressure drop that occurs through the dispenser. This becomes a problem especially for the advanced toilet that requires precise amount of water in the toilet bowl.

SUMMARY OF THE INVENTION

The present invention provides structures and methods which overcome the deficiencies in the prior art.
In one aspect, a toilet cleanser dispenser system is provided for use in connection with a flush valve in a toilet tank. The flush valve has an overflow tube. The system includes a compartment for containing a cleansing agent, a first housing at least partially enclosing the compartment, and a refill tube fluidly connected to the first housing for directing a first portion of refill water from a fill valve to the overflow tube, and for directing a cleansing solution from the first housing to the overflow tube. The refill tube has a diverter for directing a second portion of the refill water to the first housing to cause the second portion of the refill water to come into contact with the cleansing agent to form the cleansing solution. The first housing includes at least one water trap for isolating the cleansing agent compartment, and an outlet for directing the cleansing solution to the refill tube.
The system further includes a venturi for siphoning the cleansing solution into the refill tube through the outlet. In one embodiment, an orifice of the venturi in the refill tube is substantially crescent, and a cross section of the refill tube is substantially circular. In another embodiment, the orifice of the venturi in the refill tube is substantially circular.
In one embodiment, the at least one water trap includes an outlet water trap. The system further includes an inlet water trap.
The system may further include a second housing connected to the refill tube and adapted to be coupled to the first housing a water-tight receptacle. In accordance with an embodiment of the invention, the at least one water trap is formed by nesting surfaces of the first housing and the second housing, and the at least one water trap includes a substantially U-shaped portion.
In one embodiment, the cleansing agent compartment includes a cartridge carrying the cleansing agent, the cartridge being removably coupled to at least one of the first and second housings.
In one embodiment, the system further includes a blind cylinder at the bottom of the first housing for providing a support to the cleansing agent compartment.
In one embodiment, the cleansing agent compartment includes at least one port for permeating water in and out of the compartment.
In another aspect, a toilet cleanser dispenser system is provided. The system includes an overflow tube, and a cleansing dispenser device coupled to the overflow tube. The cleanser dispenser device includes a cleansing agent compartment for containing a cleansing agent, a first housing at least partially enclosing the cleansing agent compartment, and a refill tube fluidly connected to the first housing for directing a first portion of refill water from a fill valve to the overflow tube, and for directing a second portion of the refill water from the fill valve to the first housing to come into contact with the cleansing agent to form the cleansing solution, and for receiving the cleansing solution from the housing and directing the cleansing solution to the overflow tube. The first housing includes at least one water trap for isolating the cleansing agent compartment, and an outlet for directing the cleansing solution to the refill tube.
The system preferrably further includes a second housing removably attached to the first housing. The cleansing dispenser device further comprises a cleansing agent cartridge substantially enclosed in the cleansing agent compartment. The cartridge is removably coupled to at least one of the first and second housings.
In one embodiment, the system further includes a venturi for siphoning the cleansing solution into the refill tube through the outlet. The siphoning is provided by the first portion of refill water flowing through the refill tube adjacent the venturi.
In on embodiment, the at least one water trap includes an inlet water trap. The system further includes an outlet water trap.
A method for refilling a toilet bowl is also provided. The method includes directing a first portion of refill water from a fill valve to an overflow tube through a refill tube, diverting a second portion of refill water through an opening in the refill tube to a first housing containing a cleansing agent, forming a cleanser solution as a result of the second portion of water contacting the cleansing agent, and directing the cleanser solution to the refill tube.
In a preferred embodiment, directing the cleanser solution to the refill tube includes directing the cleanser solution through a venturi by a siphoning force from a flow of the first portion of refill water through the refill tube adjacent the venturi. In one embodiment, the system further includes trapping fumes from the cleansing agent with at least one water trap.
In one embodiment, the method further includes housing the cleansing agent in a disposable cartridge, and coupling the disposable cartridge to at least one of the first housing and a second housing removably attached to the first housing. The method may further includes removing the disposable cartridge from the coupling with at least one of the first and second housings, and coupling a replacement cartridge to at least one of the first and second housings.
In summary, an automatic toilet cleanser dispenser system and a method for refilling a toilet bowl with a cleanser solution are provided. The system includes a compartment for containing a cleansing agent, a housing at least partially enclosing the compartment, and a refill tube. A first portion of refill water is directed from a fill valve directly to an overflow tube through the refill tube, while a second portion of refill water is diverted to the housing. The second portion of refill water comes in contact with the cleansing agent forming a cleanser solution. The cleansing solution is then directed from the housing to the refill tube. The cleansing agent compartment is isolated with at least one water trap.
The invention, now having been briefly summarized, may be better appreciated by the following detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional side view of a cleanser dispenser system with U-shaped water traps in accordance with a first preferred embodiment of the invention;
FIG. 2A is a cross-sectional side view of a second preferred embodiment of the cleanser dispenser system;
FIG. 2B is a cross-sectional side view of a preferred venturi device;
FIG. 2C is a cross-sectional top view of the second preferred embodiment of cleanser dispenser system;
FIG. 3 is a cross-sectional view of a third preferred embodiment of the cleanser dispenser system with simplified water traps;
FIG. 4A is a cross-sectional side view of the third embodiment of the cleanser dispenser system in a state with the cleanser solution removed for clarity;
FIG. 4B is a cross-sectional view of a first housing separate from the cleanser dispenser system in the third embodiment;
FIG. 4C is a cross-sectional view of the second housing separate from the cleanser dispenser system in the third embodiment;
FIG. 5 is a cross-sectional view of the third embodiment of the cleanser dispenser system during a flushing cycle; and
FIG. 6 is a diagram illustrating a preferred method for refilling a toilet bowl with a cleanser solution.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The invention and its various embodiments can now be better understood by turning to the following detailed description wherein illustrated embodiments are described. It is to be expressly understood that the illustrated embodiments are set forth as examples and not by way of limitations on the invention as ultimately defined in the claims.
A flush valve cleanser dispenser system has been described in U.S. patent application Ser. No. 11/409,675, which provides a context of the dispenser system, i.e., the flush valve and the overflow tubing as well as a sequence to activate the dispenser system. The application is assigned to the assignee of the present invention, and is hereby incorporated by reference in its entirety.
FIG. 1 is a cross-sectional side view of a first embodiment of the toilet cleanser dispenser system 100. The cleanser dispenser system 100 may be clipped onto the overflow tube 102 using a hook or clip 104. The dispenser system 100 comprises a cleanser agent compartment 114 that contains a cleanser agent 112. The cleanser agent 112 may be in the form of tablets, powders, granules, or solid, a mix of the foregoing, or any other suitable form. The compartment 114 may contain, or itself be, a disposable cartridge as discussed further below.
The cleanser agent 112 is housed in a container 103 that is in fluid communication with a refill water tube 108. In the first preferred embodiment, the container 103 comprises a first housing 110, and a second housing 106 covering the first housing 110, although it is to be expressly understood that the container 103 may be formed as a unitary structure where the first housing 110 may be integral with the second housing 106.
The first housing 110 substantially encloses the compartment 114, and is fluidly connected to the refill water tube 108. The refill water tube 108 is preferably slanted downward toward the overflow tube 102. The refill water tube 108 is fluidly coupled to the second housing 106, which as shown provides a cover for the first housing 110. The refill water tube 108 receives refill water 115 from a fill valve (not shown). A first portion 121 of the refill water flows directly into the overflow tube 102 through the slanted refill water tube 108 bypassing the cleanser agent 112. A diverter 101 in the refill tube 108 diverts a second portion 113 of the refill water into the first housing 110 through the inlet 111. Although the diverter 101 as shown is a merely an opening in the sidewall of the refill tube 108, it is to be expressly understood that a diverter of any shape and size can be used.
The size and shape of the diverter 101 is related to the amount of the second portion 113 of the refill water that is diverted into the first housing 110, which in turn is related to the concentration of the cleanser solution. The cleanser solution 123 and the first portion 121 of refill water dispensed with each flush have a total volume about the same as the volume of refill water 115. In other words, the volume of fluid refilling the toilet bowl through the overflow tube 102 remains approximately the same with or without the cleanser dispenser system.
It will be appreciated that the lifespan of the cleansing agent 112 may be controlled by determining the amount of the diverted second portion 113 of refill water relative to the undiverted first portion 121. In particular, providing a dispenser first housing 110 with a larger portion of water results in more of the cleansing agent 112 being dissolved with each flush. This may be controlled by, for example, increasing the size of the tube opening 101 or providing an adjustable diverting mechanism. This would lead to a shorter lifespan of the cleansing agent 112. Conversely, a smaller opening 101 would divert less water into the first housing 110. This would dissolve less of the cleansing agent 112 per flush, which in turn leads to a longer life span of the cleansing agent 112.
Water traps 120, 118 are provided upstream and downstream, respectively, from the first housing 110 to prevent harmful fumes from escaping into the ambient environment. The second portion 113 of the refill water may travel through an inlet water trap 120 before entering the first housing 110. The inlet water trap 120 helps isolate the compartment 114 from the ambient to prevent harmful fumes or odors from leaking into the ambient environment such as the water tank or the room.
The water diverted into the first housing 110 may permeate into the compartment 114 through openings 117 near the bottom of the compartment 114, or through ports 119. The bottom openings 117 may simply be a gap between the compartment 114 and the bottom of the first housing 110.
The second portion 113 of the refill water that enters the first housing 110 comes into contact with and dissolves a portion of the cleanser agent 112, thereby forming a cleanser solution. As the second portion 113 continues to enter the first housing 110, the resulting cleanser solution 123 overflows a barrier 127 and re-enters the refill water tube 108 through an outlet 109. The amount of cleanser solution that flows into the slanted refill water tube 108 is approximately the same as the second portion 113 of the refill water diverted into the first housing 110.
As an alternative or supplement to the overflow mechanism, the outlet 109 may comprise a venture, and a siphoning force may be provided by the flow of a first portion 121 of the refill water 115 adjacent the venturi. The overflow or siphoned cleanser solution 123 from the first housing 110 and the undiverted first portion 121 of water mix and flow into the toilet overflow tube 102. The cleanser solution 123 may travel through an outlet water trap 118 disposed downstream from the first housing 110 before entering the opening or venturi 109. The outlet water trap 118 helps block fumes from the cleanser agent as does the inlet water trap 120.
The water traps 118 and 120 as shown comprise U-shaped passageways formed by nesting surfaces or tubes, preferably cylindrical, of the first housing 110 and the second housing 106. The second housing 106 may be snapped or threaded onto the first housing a water-tight receptacle 116. Alternatively, the first housing 110 and the second housing 106 may be glued together using adhesives, or bolted together using screws. As a further alternative, the container 103 may be formed as a unitary structure.
The container 103 has a clip or hook 104 coupled to the outer periphery of the overflow tube 102. The second housing 106 and the tube 108 can be removed from the first housing 110, leaving an opening for removing the compartment or cartridge 114 and replacing it with a new one. Alternatively, the clip or hook 104 may be formed as part of the second housing 106 instead of the first housing 110. When replacing the cartridge 114, the first housing may be removed from the bottom of the second housing 106. Yet alternatively, an opening and a water-tight door may be included in the first housing 110 or the second housing 106 to facilitate replacing the compartment or cartridge 114.
As shown in FIG. 1, when the second portion 113 of refill water enters the first housing 110, the flow of water does not directly hit the cleanser agent 112. This prevents an uneven cleanser solution and a waste of the cleanser agent. Rather, the water dissolves merely a portion of the cleanser agent 112 uniformly through openings 117 and/or ports 119.
Turning now to FIG. 2A, in accordance with a second preferred embodiment of the invention, a tube connection 211 is used to direct cleanser solution and the refill water to the overflow tube 102 from the dispenser system 200. With a flexible tube connection 211, the location of the dispenser system 200 and the shape of the refill tube 208 are more flexible in design. For example, the refill tube 208 may be in a substantially horizontal direction relative to the dispenser system 200.
As shown in FIG. 2A, a disposable cartridge 214, which is coupled to the second housing 206, can be easily removed and replaced. The second housing 206 is further snapped or threaded onto the first housing 210 using water-tight receptacles 216. Thus, the cartridge 214 can also be removed together with the second housing 206 from the first housing 210. The first housing 210 also has a blind cylinder 213 in the center of the bottom of the housing. The blind cylinder 213 provides support to the cartridge 214.
As shown in FIG. 2B, a venture 209 is provided in the refill tube 208 to facilitate the movement of cleanser solution to the overflow tube. The venturi 209 in FIG. 2B is in line with the tube 208. A water trap 218 is also formed at the connection between the tube 208 and the second housing 206. The refill water flowing horizontally through the tube 208 will have a second portion diverted into the first housing 210 through an inlet 222. The flow of the refill water through the refill water tube 208 also causes the venturi 209 to siphon cleanser solution through the outlet 224 back to the tube 208, and toward the overflow tube 102 through the connection 102.
As shown in a top cross-sectional view in FIG. 2C, the dispenser 200 comprises a divider rib 230, which provides partial support to the cartridge 214, and divides the first housing 210, or divides the first housing 210 and the second housing 206 together, into two compartments 231 and 232. Fresh refill water 215 flowing through the refill tube 208 is partially diverted, through the inlet 218, into the compartment 231 that mostly contains fresh water. The fresh water flows passing the cartridge 214 through the holes 219 on the cartridge and comes into contact with the cleansing agent and becomes the cleansing solution when entering the compartment 232. The compartment 232 receives and retains the cleansing solution. The cleansing solution is then siphoned into the tube through outlet 224 by the venturi 209.
FIG. 3 is a cross-sectional view of a third preferred embodiment of the dispenser system 300. As shown, the top surface of the blind cylinder 313 is also the bottom of the compartment 314 that carries the cleansing agent. When the second housing 306 is coupled to the first housing 310, the sidewalls of the compartment 314 also couple to the blind cylinder 313 at a joint 319. The joint 319 may be a press fitting joint, a snap-on receptacle, or a threaded connection.
As shown in FIG. 3, the inlet water trap 320 and the outlet water trap 318 are simply defined by nesting surfaces of the first housing 310, the second housing 306, and the compartment 314. It is noted that in the third preferred embodiment shown in FIG. 3, the second housing 306 and the cleanser agent compartment 314 are a unitary structure. A top plan view of the tube 308 from one end is also provided in FIG. 3. The refill water tube 308 may comprise a substantially circular profile, while the venturi orifice 309 is substantially crescent shaped.
The fourth preferred embodiment of the dispenser 400 is shown in FIG. 4A with the first housing 406 coupled to the second housing 410. As shown in the cross-sectional view, the venturi orifice 409 is substantially circular, while the main tube 408 has an eclipse-shaped opening.
FIGS. 4B and 4C provide cross-sectional side views of the first housing 410 and the second housing 406, respectively. As seen in FIG. 4B, the first housing 410 provides a water-tight snap-fit receptacle 416 for coupling the first housing 406. In addition, the blind cylinder 413 provides a snap or press fit, or a threaded joint receptacle 419 to couple with the compartment 414. In this configuration, the compartment 414 including the upper surface of the blind cylinder 413 carries the cleansing agent 412 directly, and the whole dispenser 400 is disposable, or refillable, after the cleansing agent 412 is depleted. Alternatively, a cartridge similar to that of FIG. 2A can be disposed in the compartment 414 where the cartridge, but not the compartment 414, carries the cleansing agent directly.
As shown in FIG. 4C, the compartment 414, or alternatively a cartridge, has a plurality of holes 430 that allow the water in the first housing 410 to come in contact with the cleansing agent 412 and to dissolve a portion of the cleansing agent 412, thereby forming the cleansing solution.
FIG. 5 illustrates a flushing sequence with the dispenser system 400, wherein flows of refill water and cleansing solution are indicated by arrows. As shown, the dispenser 400 is mounted on the overflow tube 102. A variety of coupling and fastening mechanisms may be employed to couple the dispenser 400 to the overflow tube 102. The slanted refill water tube 408 on its upper end is connected to the fill valve 501 using a refill connection tube 503. The refill connection tube 503 may be flexible.
As the flush cycle is activated by a flush lever (not shown), refill water flows through the slanted refill tube 408. A first portion 521 of the refill water flows directly into the overflow tube 102 and then to the toilet bowl, which bypasses the dispenser system 400. As refill water flows in the slanted tube 408, a second portion 513 of the refill water is diverted into the cleansing agent compartment 414 (e.g., an inner cylinder). The cleansing solution formed from the second portion of water 513 permeates into the first housing 410 (e.g., the outer cylinder) from the compartment 414.
As the first portion 521 of refill water flows directly toward the end of the slanted tube 408 passing by the venturi device 409, venturi action occurs at the venturi device 409. This venturi action will draw the cleansing solution from the first housing 410 and cause it to mix with the undiverted first portion 521 of refill water. In the overflow tube 102, the first portion 521 refill water is properly mixed with the cleansing solution and becomes a solution more diluted than that in the first housing 410. This diluted cleansing solution is then carried down to the toilet bowl through the overflow tube 102.
The pressure drop caused by the dispenser 400 is almost negligible since a relatively small portion 513 of refill water is diverted to the dispenser 400, and the venturi action draws the cleansing solution from the dispenser 400, as opposed to the conventional dispensers where all the refill water flows through many tortuous passes. Furthermore, the manufacturing cost of the dispenser of the invention is comparably lower than similar dispensers as fewer parts are used.
In the above preferred embodiments, the first and second housings, the cleansing agent compartment, and the disposable cartridge as shown have substantially cylindrical shapes. However, those of ordinary skill in the art will recognize that other shapes may be used without departing from the scope of the invention.
FIG. 6 illustrates a preferred method 600 for refilling a toilet bowl with a cleanser solution. The method 600 comprises a step 602 of directing refill water through a refill water tube connected to a container. The container carries a cleansing agent. Step 604 includes diverting a portion of the refill water into the container. In step 606, an undiverted portion of the refill water is directed through the refill tube directly towards the overflow tube, bypassing the container.
In step 608, the refill water in the housing is brought into contact with the cleansing agent to form a cleanser solution. This step 608 may comprise directing the refill water into contact with the cleansing agent held inside a cartridge removably coupled to the housing. Step 610 comprises directing the cleanser solution from the dispenser container to an overflow tube together with the main portion of the refill water that bypasses the container. This step 610 may include overflowing the cleanser solution as shown in FIG. 1, or by siphoning the cleanser solution through a venturi as shown in FIG. 5. This step 610 may also include mixing the cleanser solution with the undiverted refill water in the refill tube to form a diluted cleanser solution prior to entering the overflow tube.
Step 612 comprises blocking fumes emanating from the cleanser agent from escaping into the ambient environment by using one or more water traps. The method 600 may further include a step 614 replacing the disposable cleanser agent cartridge.
Advantageously, the present invention provides a system and method for automatically dispensing a cleanser solution to the toilet bowl via the overflow tube during a flush. The cleanser solution is isolated and does not mix with the toilet tank water. A portion of the refill water after each flush is used to dissolve a portion of cleansing agent and is then mixed with the undiverted portion of the refill water to form a diluted cleanser solution that enters the overflow tube.
The dispenser device is small and simple, and can be easily fit into most toilet tanks. The dispenser device has an integrated clip for direct attachment to the overflow tube of the flush valve. After a certain period of time on a regular basis of use, e.g., a few months, the cleanser agent content of the dispenser is exhausted. The entire depleted dispenser device may be removed and replaced with a complete, new dispenser device. Alternatively, a cartridge containing the cleanser agent may be replaced instead of replacing the whole dispenser device.
Many alterations and modifications may be made by those having ordinary skill in the art without departing from the spirit and scope of the invention. Therefore, it must be understood that the illustrated embodiments have been set forth only for the purposes of examples and that they should not be taken as limiting the invention as defined by the following claims. For example, notwithstanding the fact that the elements of a claim are set forth below in a certain combination, it must be expressly understood that the invention includes other combinations of fewer, more or different elements, which are disclosed in above even when not initially claimed in such combinations.
The words used in this specification to describe the invention and its various embodiments are to be understood not only in the sense of their commonly defined meanings, but to include by special definition in this specification the generic structure, material or acts of which they represent a single species.
The definitions of the words or elements of the following claims are, therefore, defined in this specification to not only include the combination of elements which are literally set forth. In this sense it is therefore contemplated that an equivalent substitution of two or more elements may be made for any one of the elements in the claims below or that a single element may be substituted for two or more elements in a claim. Although elements may be described above as acting in certain combinations and even initially claimed as such, it is to be expressly understood that one or more elements from a claimed combination can in some cases be excised from the combination and that the claimed combination may be directed to a subcombination or variation of a subcombination.
Insubstantial changes from the claimed subject matter as viewed by a person with ordinary skill in the art, now known or later devised, are expressly contemplated as being equivalently within the scope of the claims. Therefore, obvious substitutions now or later known to one with ordinary skill in the art are defined to be within the scope of the defined elements.
The claims are thus to be understood to include what is specifically illustrated and described above, what is conceptionally equivalent, what can be obviously substituted and also what incorporates the essential idea of the invention.

Claims

1. A toilet cleanser dispenser system, comprising:

a compartment for containing a cleansing agent;

a first housing at least partially enclosing the cleansing agent compartment; and

a refill tube fluidly connected to the first housing for directing a first portion of refill water from a fill valve to the overflow tube, and a cleansing solution from the first housing to the overflow tube, the refill tube comprising a diverter for directing a second portion of the refill water to the first housing to cause the second portion of the refill water to come into contact with the cleansing agent to form the cleansing solution, wherein the first housing comprises:

at least one water trap for isolating the cleansing agent compartment; and

an outlet for directing the cleansing solution to the refill tube.

2. The system of claim 1, further comprising:

a venturi for siphoning the cleansing solution into the refill tube through the outlet.

3. The system of claim 2, wherein

an orifice of the venturi in the refill tube is substantially crescent shaped, and

a cross section of the refill tube is substantially circular.

4. The system of claim 2, wherein

an orifice of the venturi in the refill tube is substantially circular.

5. The system of claim 1, wherein the at least one water trap comprises an outlet water trap, the system further comprising an inlet water trap.

6. The system of claim 1, further comprising a second housing connected to the refill tube and adapted to be coupled to the first housing a water-tight receptacle.

7. The system of claim 6, wherein the at least one water trap is formed by nesting surfaces of the first housing and the second housing, and wherein the at least one water trap comprises a substantially U-shaped portion.

8. The system of claim 6, wherein the cleansing agent compartment comprises a cartridge carrying the cleansing agent, the cartridge being removably coupled to at least one of the first and second housings.

9. The system of claim 1, further comprising a blind cylinder at the bottom of the first housing for providing a support to the cleansing agent compartment.

10. The system of claim 1, wherein the cleansing agent compartment comprises at least one port for permeating water in and out of the compartment.

11. A toilet cleanser dispenser system, comprising:

an overflow tube; and

a cleansing dispenser device coupled to the overflow tube, the cleanser dispenser device including:

a cleansing agent compartment for containing a cleansing agent;

a refill tube fluidly connected to the first housing for directing a first portion of refill water from a fill valve to the overflow tube, directing a second portion of the refill water from the fill valve to the first housing to come into contact with the cleansing agent to form the cleansing solution, and for receiving the cleansing solution from the housing and directing the cleansing solution to the overflow tube;

wherein the first housing comprises:

at least one water trap for isolating the cleansing agent compartment; and

an outlet for directing the cleansing solution to the refill tube.

12. The system of claim 11, wherein the cleansing dispenser device further comprising a second housing removably attached to the first housing, wherein:

the cleansing dispenser device further comprises a cleansing agent cartridge substantially enclosed in the cleansing agent compartment, and

wherein the cartridge is removably coupled to at least one of the first and second housings.

13. The system of claim 11, wherein the cleansing dispenser device further comprises:

a venturi for siphoning the cleansing solution into the refill tube through the outlet, wherein the siphoning is provided by the first portion of refill water flowing through the refill tube adjacent the venturi.

14. The system of claim 11, wherein the at least one water trap comprises an inlet water trap, and wherein the cleansing dispenser device further comprises an outlet water trap.

15. A method for refilling a toilet bowl, comprising:

directing a first portion of refill water from a fill valve to an overflow tube through a refill tube;

diverting a second portion of refill water through a diverter in the refill tube to a first housing containing a cleansing agent;

forming a cleanser solution as a result of the second portion of water contacting the cleansing agent; and

directing the cleanser solution to the refill tube.

16. The method of claim 15, wherein directing the cleanser solution to the refill tube comprises directing the cleanser solution through a venturi by a siphoning force from a flow of the first portion of refill water through the refill tube adjacent the venturi.

17. The method of claim 15, further comprising:

trapping fumes from the cleansing agent with at least one water trap.

18. The method of claim 15, further comprising:

housing the cleansing agent in a disposable cartridge; and

coupling the disposable cartridge to at least one of the first housing and a second housing removably attached to the first housing.

19. The method of claim 18, further comprising:

removing the disposable cartridge from the coupling with at least one of the first and second housings; and

coupling a replacement cartridge to at least one of the first and second housings.