WO2008062364A1 - Distributeur de matière apte à se dissoudre pour des toilettes - Google Patents
Distributeur de matière apte à se dissoudre pour des toilettes Download PDFInfo
- Publication number
- WO2008062364A1 WO2008062364A1 PCT/IB2007/054709 IB2007054709W WO2008062364A1 WO 2008062364 A1 WO2008062364 A1 WO 2008062364A1 IB 2007054709 W IB2007054709 W IB 2007054709W WO 2008062364 A1 WO2008062364 A1 WO 2008062364A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- dispenser
- water
- level
- cistern
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
- E03D9/03—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction ; Devices for agents in direct contact with flushing water
- E03D9/033—Devices placed inside or dispensing into the cistern
- E03D9/038—Passive dispensers, i.e. without moving parts
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
- E03D2009/024—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing using a solid substance
Definitions
- the invention relates to: a dispenser for supplying a solution from a flushing cistern into a toilet bowl, a system comprising such a dispenser and a solid piece of dissolvable material, a toilet flushing cistern and such a system being arranged in the toilet flushing cistern, and to a toilet comprising the toilet flushing cistern and a toilet bowl.
- the known approach has several drawbacks. If the toilet is not used for a longer period of time, the amount of cleansing material dissolved in the cistern is quite high. This is a waste of material: usually the tablet has to be exchanged every month. The too high amount of dissolved material may cause a sticky colored film in the toilet bowl, and may cause malfunction of the rubber seal between the flushing cistern and the toilet bowl due to deposit of the material on the rubber seal. If the toilet is used with repeated flushes, the concentration of the cleansing material is too low.
- a first aspect of the invention provides a dispenser for supplying a solution from a flushing cistern into a toilet bowl as claimed in claim 1.
- a second aspect of the invention provides a system comprising the dispenser as claimed in claim 14.
- a third aspect of the invention provides a toilet flushing cistern as claimed in claim 15.
- a fourth aspect of the invention provides a toilet as claimed in claim 16.
- Advantageous embodiments are defined in the dependent claims.
- a dispenser in accordance with the first aspect of the invention comprises a housing used to store the dissolvable material.
- the dissolvable material may be a cleansing and/or deodorant, and/or disinfecting material.
- the material may be a chlorine-detergent tablet. Such materials are usually heavier than water, and thus will settle on the bottom wall of the housing.
- the wall which in use is the bottom wall is referred to as the first end wall in the claims.
- the material may be lighter than water.
- the housing has an opening in a side wall.
- the flushing cistern (further also referred to as the cistern) is filling with water, the water will flow through the opening into the housing once the water level in the cistern has risen until the opening is reached.
- the water entering the housing will mix with the solution of dissolved material and further dissolve the material.
- the solution stored in the housing above the opening will leave the housing and mix with the water in the cistern which flows towards the toilet bowl.
- a gas, usually air, in the housing should be able to move to enable the water to enter into or to leave the housing through the opening.
- the expansion means which allows the movement of the gas is airtight coupled to an upper part of the housing. The upper part opposes the first end wall.
- the expansion means and the opening in the side wall are arranged to obtain, in use when the dispenser is present in the flushing cistern: (i) a flow of water into the housing via the opening thereby moving at least part of the gas out the housing into the expansion means, once the water level in the flushing cistern rises above a predetermined first level, the water entered further dissolves the soluble material to obtain a solution of material, and (ii) a flow of the solution of material out of the housing via the opening once the water level in the flushing cistern drops below a predetermined second level being identical or lower than the predetermined first level.
- the amount of soluble material which is used per flush is limited to the amount solvable in the amount of water entering and leaving the housing of the dispenser. This is in contrast to the known use of dissolvable tablets directly in the cistern, which results in a waste of this material because all the water in the cistern is used to dissolve the dissolvable material.
- the dispenser in accordance with the present invention therefore proposes a device which restricts the dissolving of the dissolvable material, which may be a cleansing material, within realistic limits to achieve the cleansing action without most of the cleansing material merely going down the drain unused.
- the device proposed has a simple construction and is effective in operation. It can be installed and used even by a lay person with little instruction for its operation.
- the device proposed lends itself to mass manufacturing techniques, so that it is capable of being made available to the consumer at a reasonable cost.
- the device is durable in use, especially when it is made of non-metallic substances which are corrosion resistant.
- the opening is provided at a predetermined non-zero distance from the first end wall in the direction of the opposing part opposing the first end wall.
- the first end wall is the bottom wall and the opposing part is the top part of the housing.
- This position of the opening has the effect that the dissolvable material is always surrounded by a predetermined amount of liquid, even if the water level in the cistern is low. Consequently, when the water in the cistern rises, the concentration of the soluble material is less dependent on the speed of filling of the cistern and the time, especially if short, the cistern is filled before a next flushing action is required.
- a further effect is that once the water level in the cistern is below the second level no further solution is leaving the dispenser anymore. Consequently, the rest of the water in the cistern is able to flush away the solution and the deposition of the solution on the rubber of the outlet of the cistern and on the surface of the toilet bowl is minimized.
- the opening of the housing of the dispenser is located in the cistern such that the solution is supplied near the outlet of the dispenser. This ensures that the solution is only locally present and most of the water in the cistern does not contain dissolvable material or contains a very low concentration of the dissolvable material only. This further improves the flushing away of the solution before the end of the flushing action.
- the housing comprises a conduit which is arranged inside the opening.
- the conduit has an inlet inside the housing and an outlet outside the housing to allow the water of the cistern to enter the housing and the solution to leave the housing via the conduit.
- Such a conduit offers a higher flexibility in the construction of the dispenser and its position in the cistern.
- the conduit is a straight pipe and the predetermined first level and the predetermined second level of the water in the cistern at which water starts entering the housing and the solutions stops leaving the housing, respectively, are identical.
- the inlet and the outlet of the conduit are displaced with respect to each other in a top-bottom direction, thus in a direction extending from bottom wall to top part.
- the conduit inside the housing has siphon shaped portion to obtain a conduit with an outlet nearer to the bottom wall than the inlet, and wherein part of the conduit nearest to the top part is nearer to the top part than the inlet to obtain a second level lower than the first level.
- the expansion means comprises an air conduit extending from the top part of the housing and having a length to end, in use, above a highest level of water in the flushing cistern.
- the expansion means comprises a flexible material which is airtight connected to an expansion opening at a top part of the housing to form an air chamber. This air chamber may be present directly on top of the housing and thus in the water in the cistern when full.
- the expansion means comprises a flexible material which is airtight connected to the opposing part of the housing to surround an expansion opening in the opposing part to form an air chamber.
- the expansion means comprises a flexible material which is airtight connected at the opposing part of the side walls of the housing to form the air chamber.
- the flexible material of the expansion means forms a flexible air chamber which stores air displaced in the housing by water entering from the cistern.
- the flexible material is rubber or any other natural or synthetic elastic material.
- the flexible material may have a balloon like shape. The air stored in the balloon when the water enters the housing allows the water to leave the housing when the water level in the cistern drops.
- a cap covers the flexible material which forms the air chamber.
- the cap is movably attached to the housing to allow movement in the top-bottom direction.
- Such a cap protects the flexible material from getting damaged.
- the cap the travel distance of the cap is limited to increase the compression of the air in the air chamber. The higher compression has the advantage that the solution will be forced out of the dispenser with a higher force.
- the housing has a submerging weight for keeping it submerged in the flushing cistern.
- the housing is constructed from a material heavier than water and has a weight sufficient to keep the dispenser always submerged in the water of the cistern.
- the housing comprises a separate submerging weight at its bottom section. This allows the housing to be made of any suitable material independent on specific weight. The extra weight may be present inside or outside the housing.
- the dispenser further comprises a pressing weight for exerting a force on the flexible material in the bottom direction to push the solution out of the outlet when the water in the flushing cistern drops. This weight increases the speed with which the solution leaves the dispenser to increase the mixing of the solution with the water in the cistern.
- Fig. 1 shows schematically an embodiment of a toilet with a flushing cistern and a toilet bowl with a dispenser arranged in the flushing cistern
- Fig. 2 shows schematically an embodiment of the dispenser
- Fig. 3 shows schematically another embodiment of the dispenser
- Fig. 4 shows dimensions of an embodiment of the dispenser.
- Fig. 1 shows schematically an embodiment of a toilet with a flushing cistern and a toilet bowl with the dispenser arranged in the flushing cistern.
- the toilet 2 comprises a flushing cistern F and a toilet bowl P.
- the construction of the cistern F is well known and only briefly elucidated.
- the lever and floating ball construction Q controls the closing and opening of the water supplying conduit to the cistern F.
- the water level in the cistern F is at its highest level and the water supplying conduit is closed.
- the lever LE activates the flushing operation.
- the flushing is active, the water leaves the cistern F via the outlet J towards the bowl P.
- the dispenser 1 which will be elucidated in detail with respect to Figs.
- the dispenser 1 may be fixedly or removably attached to a side wall or top wall of the cistern F. If the dispenser 1 is fixedly attached, it should be constructed such that it can easily be opened to replace the dissolving material inside it.
- Fig. 2 shows schematically an embodiment of the dispenser.
- the dispenser 1 has a housing H and an expansion pipe A.
- the housing H has an opening O in a side wall and comprises the dissolvable material D resting on its bottom wall.
- the dissolving material D may be held at a position in-between the opening O and the bottom wall.
- the water level in the cistern F is at maximum height as indicated by the wavy line.
- the water level in the dispenser 1 is at the same level as the water level in the cistern.
- the dispenser 1 is filled with a solution of the dissolvable material D in water.
- the water level in the cistern F starts dropping, and also the level of the solution in the dispenser 1 drops, and the solution leaves the dispenser 1 via the opening O.
- the solution continuous to leave the dispenser 1 until the water level in the cisterns drops to the level FL. Consequently, the amount of water with dissolved material D is limited to the volume of the dispenser between the level FL and the maximum level. This volume can be freely selected to obtain a suitable amount of solution leaving the dispenser 1 during the flushing action.
- the dissolvable material D is not dissolved in the total water volume of the cistern F but only in the above described volume of the dispenser 1.
- the level of the solution in the dispenser 1 does not further drop.
- the concentration of the solution in the water leaving the cistern F will diminish fast and no deposits of the material D at a sealing rubber (not shown) of the outlet J of the cistern F and on the surface of the toilet bowl will be left.
- a further advantage is that the concentration of the material D in the solution left in the dispenser is still at a high level.
- the level SL at which water starts flowing into the dispenser 1 is equal to the level FL at which the solution stops flowing out of the dispenser 1.
- Fig. 3 shows schematically another embodiment of the dispenser.
- the dispenser comprises a housing H, W1 which is intended to be put in the flushing cistern F of the toilet 2.
- the housing comprises a tube like part H with an opening in the bottom wall, and a part W1 providing sufficient extra weight to the dispenser 1 such that it stays in place in the cistern F even when the water level is at the maximum height.
- the opening O of the housing is present in the part W1.
- the conduit C extends through the opening in the bottom wall of the tube H and ends in a side wall of the part W1.
- the tube H rises in the housing part H towards the flexible bulb B which is made of flexible material and which is airtight fitted to the open upper end of the tube H.
- the flexible bulb B acts as an expandable air chamber.
- the tube has a siphon shaped part M at the end nearest to the upper part of the tube H.
- This siphon shaped part M is optional.
- the dissolvable material D is present at the bottom of the tube H around the conduit C.
- An optional weight W2 is attached at the inside or outside of the top part of the flexible material forming the walls of the flexible bulb B.
- the flexible material may be rubber or any other balloon like material.
- An optional cap K is covering the flexible bulb B and is movable in the top- bottom direction of the tube H. Protrusions L at the top end of the tube H prevent the cap to slip off of the tube H.
- the dissolvable material D may be a detergent tablet which is dissolvable in water and which, for example, releases chorine when dissolved.
- the outlet G of the conduit terminates outside the housing within the cistern F.
- the cistern F When the cistern F is filling with water, once the water level in the cistern F reaches the level FL, the water starts entering the tube H via the conduit C.
- the rising water level in the tube H moves the air in the dispenser 1 into the air bulb B which gets inflated. In fact, the air in the air bulb B is compressed by the rising water column in the dispenser 1.
- the cap K also moves upwards along with the upward rise of the inflating bulb B until restrained from further upward movement by the stops L.
- the cap K not only serves as a retaining cover for the bulb B but also serves to increase a build up of pressure within the bulb B during the upward rise of the water level in the housing H, W1.
- the float mechanism Q in the cistern F cuts off the water supply to the cistern F when the water reaches the maximum level in the cistern F.
- the dispenser 1 is now filled with water with the air in the bulb B in a compressed state.
- the cleansing tablet D is dissolving in the water in the housing H.
- the tablet D is exposed to a limited volume of water that is contained in the housing H only, and is not exposed to the whole amount of water in the cistern F.
- a particular percentage of concentration of the cleansing material is reached sooner than possible in the relatively large volume of water in the cistern F.
- the water in the cistern F exits into the toilet bowl P via the outlet J.
- the pressured air in the bulb B causes the solution of cleansing material in the dispenser 1 to leave the dispenser 1 because to the pressure of the dropping water level in the cistern F decreases.
- the concentration of the solution of cleansing material in the water leaving the cistern F is relatively low because the amount of water leaving the cistern F is relatively high (due to the high level of water in the cistern F) with respect to the amount of solution leaving the dispenser 1 at the start of the flushing operation.
- the concentration of the solution in the water leaving the cistern F increases when the level of the water in the cistern F decreases, until the level SL is reached.
- the concentration of the solution in the water leaving the cistern F can be adapted at will by selecting an appropriate volume of the dispenser 1 and by selecting an appropriate weight W2. The larger the volume and/or weight W2 the more solution will be dispensed per unit of time.
- the housing H retains some water with the cleansing material dissolved in it and, therefore, even if the next flushing is performed immediately once the cistern is refilled, the concentration of the cleansing material M in the water leaving the cistern F is sufficiently high.
- the height of the conduit inlet E with respect to the bottom of the dispenser 1 determines the level of water SL at which the solution is not anymore leaving the dispenser 1.
- the siphon shaped part M of the conduit C determines the level FL at which water starts pouring into the dispenser 1.
- the level difference between the levels FL and SL gives the system the siphon action and also helps the system to drain only the solution and not solids.
- the level difference between the levels FL and SL causes a turbulent fall of the water entering the dispenser 1 and thus helps to thoroughly mix the incoming water with the dissolved solvent already present in the dispenser 1.
- Fig. 4 shows schematically another embodiment of the dispenser. This dispenser 1 differs from the dispenser 1 shown in Fig. 3 in that the conduit C leaves the tube portion H of the housing in a side wall of the tube H, and that the conduit C does not traverse through the weight portion W1 of the housing.
- the weight portion W1 of the housing now is present inside the tube portion H on the bottom of the tube portion H.
- the weight portion W1 may be an integral part of the housing but may also be a separate part.
- the optional weight W2 is not shown.
- the dissolvable material D is present on the weight W1.
- a screw S is provided to be able to control the amount of solution leaving the dispenser 1.
- the dimensions, shown by way of example only, indicate a practical embodiment of the dispenser 1.
- the operation of the dispenser 1 shown in Fig. 4 is identical to the operation of the dispenser shown in Fig. 3 and thus is not elucidated again.
- any reference signs placed between parentheses shall not be construed as limiting the claim.
- Use of the verb "comprise” and its conjugations does not exclude the presence of elements or steps other than those stated in a claim.
- the article "a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
- the invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the device claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Abstract
L'invention concerne un distributeur (1) pour distribuer une solution à partir d'une citerne de chasse (F) à l'intérieur d'une cuvette de toilette (P). Ce distributeur comprend un boîtier (H, W1) pour supporter une matière (D) apte à se dissoudre, et ayant une première paroi d'extrémité et une paroi latérale avec une ouverture (O) pour permettre à l'eau de s'écouler entre la citerne de chasse (F) et un intérieur du boîtier (H, W1) et réciproquement. Lors de l'utilisation, le boîtier (H) est orienté de telle sorte que la première paroi d'extrémité est une paroi inférieure. Le distributeur (1) comprend en outre des moyens d'expansion (A; B) qui sont étanches à l'air, couplés à une partie opposée du boîtier (H), opposée à la première paroi d'extrémité. Les moyens d'expansion (A; B) sont disposés pour obtenir, lors de l'utilisation, lorsque le distributeur (1) est présent dans la citerne de chasse: (i) un écoulement d'eau dans le boîtier (H) par l'intermédiaire de l'ouverture (O) une fois que le niveau d'eau dans la citerne de chasse (F) est monté au-dessus d'un premier niveau prédéterminé (FL), l'eau dans le boîtier (H) dissolvant la matière apte à se dissoudre (D) pour obtenir la solution, et (ii) lorsque le niveau d'eau dans la citerne de chasse (F) chute, un écoulement de la solution hors du boîtier (H) par l'intermédiaire de l'ouverture (O) jusqu'à ce que le niveau d'eau dans la citerne de chasse (F) chute au-dessous d'un second niveau prédéterminé (SL), qui est identique ou inférieur au premier niveau prédéterminé (FL).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN2159/CHE/2006 | 2006-11-21 | ||
IN2159CH2006 | 2006-11-21 | ||
EP06026512.1 | 2006-12-21 | ||
EP06026512 | 2006-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008062364A1 true WO2008062364A1 (fr) | 2008-05-29 |
Family
ID=39204704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2007/054709 WO2008062364A1 (fr) | 2006-11-21 | 2007-11-20 | Distributeur de matière apte à se dissoudre pour des toilettes |
Country Status (1)
Country | Link |
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WO (1) | WO2008062364A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150345123A1 (en) | 2014-05-27 | 2015-12-03 | As Ip Holdco, Llc | Sanitaryware cleaning system |
US10465366B2 (en) | 2014-05-27 | 2019-11-05 | As America, Inc. | Sanitaryware cleaning system |
WO2020160632A1 (fr) * | 2019-02-04 | 2020-08-13 | Roca Sanitarios Brasil Ltda | Système auto-nettoyant utilisé dans un réservoir de toilettes |
USD914838S1 (en) | 2015-05-27 | 2021-03-30 | AS America Inc. | Cartridge |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4707865A (en) * | 1986-07-31 | 1987-11-24 | The Drackett Company | Dispenser with fluid pathway including valve to form air lock |
US4709423A (en) * | 1982-11-08 | 1987-12-01 | The Drackett Company | Toilet tank dispenser |
EP0363754A1 (fr) * | 1988-10-08 | 1990-04-18 | Henkel Kommanditgesellschaft auf Aktien | Distributeur automatique pour réservoir de chasse d'eau |
-
2007
- 2007-11-20 WO PCT/IB2007/054709 patent/WO2008062364A1/fr active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4709423A (en) * | 1982-11-08 | 1987-12-01 | The Drackett Company | Toilet tank dispenser |
US4707865A (en) * | 1986-07-31 | 1987-11-24 | The Drackett Company | Dispenser with fluid pathway including valve to form air lock |
EP0363754A1 (fr) * | 1988-10-08 | 1990-04-18 | Henkel Kommanditgesellschaft auf Aktien | Distributeur automatique pour réservoir de chasse d'eau |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150345123A1 (en) | 2014-05-27 | 2015-12-03 | As Ip Holdco, Llc | Sanitaryware cleaning system |
US10294643B2 (en) | 2014-05-27 | 2019-05-21 | As Ip Holdco, Llc | Sanitaryware cleaning system |
US10465366B2 (en) | 2014-05-27 | 2019-11-05 | As America, Inc. | Sanitaryware cleaning system |
USD914838S1 (en) | 2015-05-27 | 2021-03-30 | AS America Inc. | Cartridge |
WO2020160632A1 (fr) * | 2019-02-04 | 2020-08-13 | Roca Sanitarios Brasil Ltda | Système auto-nettoyant utilisé dans un réservoir de toilettes |
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