EP0528073A1 - A dispensing device for a toilet cistern - Google Patents
A dispensing device for a toilet cistern Download PDFInfo
- Publication number
- EP0528073A1 EP0528073A1 EP91201164A EP91201164A EP0528073A1 EP 0528073 A1 EP0528073 A1 EP 0528073A1 EP 91201164 A EP91201164 A EP 91201164A EP 91201164 A EP91201164 A EP 91201164A EP 0528073 A1 EP0528073 A1 EP 0528073A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- housing
- dispensing device
- cistern
- cartridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 111
- 239000000463 material Substances 0.000 claims abstract description 57
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Images
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
- This invention relates to an improved dispensing device for use in the cistern of a toilet system, wherein the device incorporates a chemical additive, such as a disinfecting and/or deodorising compound, which is arranged to disperse in water present in the device so that water containing the compound is delivered automatically to the toilet bowl when the cistern is emptied.
- a chemical additive such as a disinfecting and/or deodorising compound
- the water treatment material means comprises a removable cartridge having a tubular side wall having a plurality of apertures formed therein, said apertures being spaced along the length of the side wall, a closed bottom wall and an open upper end, the interior of the cartridge being filled (or nearly so) with solid water treatment material, said side wall being spaced from the inner walls of the container or housing so as to form said water flow path means.
- the lower end of the drain tube connects to the reservoir means via an opening in the side wall of the housing, said opening being spaced a small distance, e.g. 5mm above the bottom wall of the housing.
- the reservoir means is formed by a space between the cartridge bottom wall and the housing bottom wall so as to permit water to flow freely from the housing into the discharge tube or vice versa.
- the discharge tube extends upwardly by a distance which is slightly less than half the overall height of the housing or container.
- the tube may be provided with a flow restrictor in its outlet end for reducing the flow rate of treated water from the device, and in turn the rate of release of the water treatment material.
- the height of the discharge tube is a factor which determines the volume of water discharged from the device, and that a reservoir of water containing water treatment material, will always be stored within the device, i.e. it never drains completely.
- the device In use, the device is partially immersed in the cistern water to a depth just below the upper end of the housing, whereupon water enters the chamber from the reservoir means, via the discharge tube, and a head of water is formed in the cartridge above the upper level of the water treatment material, which then becomes dispersed or dissolved in the water. Some of the dissolved material will diffuse into the water of the reservoir means ready for discharge into the cistern.
- treated water will be dispensed into the cistern once the level of water in the cistern falls, and such discharge will continue until the level of the water in the chamber drops to the level of the upper end of the discharge tube. A reservoir of treated water thus remains in the reservoir means ready for the next flush.
- the water within the dispenser is maintained in a relatively quiet state which minimises the loss of water treatment material particularly when the toilet is not in use (i.e. during quiescent periods).
- the water within the device contacts substantially only the upper surface of the water treatment material, whereby the rate of release of the material is very much controlled during the flushing/refilling cistern cycles and this significantly extends the working life of the dispensing device (without having to replace the water treatment material), and avoids any problems which normally arise owing to excessive discharge of such material during flushing, e.g. unsightly stains within the toilet bowl.
- the water treatment material may be a solid block, and compositions for same are well known in the art.
- the composition can contain components for controlling the rate of release of the "active" material into the water.
- the material is contained in disposable cartridges, or in a protective wrapping which dissolves in water. Refills can thus be simply inserted in the device without having to remove it from the cistern.
- a toilet cistern dispensing device 10 comprises a hollow cylindrical container or housing 11 having a tubular side wall 12 defining a chamber 14, a closed bottom wall 13 and an open top, and a removable cylindrical cartridge 15 slidably located within the chamber 14, the housing 11 and cartridge 15 being dimensioned so that with the cartridge 15 housed in the chamber 14, a small annular clearance 17 exists between the side walls thereof.
- the housing 11 is formed of water impervious plastics material, and has attached to its side wall a hanger strap 18, for hookingly attaching the housing 11 to a side wall of the toilet cistern 19, or to the inlet tube 20 of the cistern 19, the positioning of the housing 11 being selected so that when the cistern 19 is filled with water, the housing 11 projects slightly above the level of the water in the cistern (refer Fig. 1).
- the container 11 is provided with an upwardly extending discharge tube 21 which in this embodiment, has its lower end connected to an aperture 22 in the side wall 12 of the container 11 near to its bottom wall 13, the tube 21 extending approximately parallel to the side wall 12 of the container 11 exteriorly thereof and contiguous therewith.
- the tube 21 terminates at its upper end at a level which is slightly below the mid-region of the container 11.
- the removable cartridge 15 comprises a cup-shaped outer casing 25 of plastics material, the diameter of which is slightly less than the diameter of the cylindrical housing 11, the tubular side wall of the casing 25 having a plurality of axially spaced, horizontal rows of apertures 27 formed therein, the apertures 27 in each row being spaced circumferentially around the casing 25, the apertures 27 in each adjacent row being in staggered relationship.
- the bottom wall 28 of the casing 25 is closed and sits on top of a support ring 30.
- the cartridge 15 is thereby supported clear of the bottom wall 13 of the container 11, and above the lower end of the tube 21.
- the space 31 forms a reservoir for water which enters the housing 11 through the tube 21.
- the ring 30 is provided with openings 32 in its side wall to permit water to flow freely through the reservoir 31 into the tube 21 and vice versa.
- Water treatment material 34 containing cleansing, colouring, disinfecting and/or perfumed agents, is contained in the cartridge 15, to a level below the upper end of the casing 25, so that a space is formed above the material 34 in the casing 25 and which forms a well in which water can collect. In this initial state, only a small number of the apertures 27 in the outer casing side wall 25 are "open” or "exposed".
- the material is in solid or paste form and fills the interior of the cartridge 15 so that essentially only its upper surface makes effective contact with water, the apertures 27 being sufficiently small so that the contact between the water and the material 34 by virtue of the holes 27, does not have any significant effect on the dissolving or dispersion of the material 34.
- the material is desirably formulated so that it slowly dissolves in water, the pattern of holes 27 being effective to ensure that the material 34 is consumed evenly, so that its upper surface slowly drops substantially horizontally.
- the upper end of the cartridge 15 is provided with a tab 35 which serves as a handle for manually grasping the cartridge 15 to facilitate its insertion and withdrawal from the housing 11, e.g. when a replacement cartridge 15 needs to be fitted, without having to remove the device in its entirety.
- the dispensing device 10 is suspended in the tank of the toilet cistern 19, for example by simply engaging its hanger strap 18 over the side wall of the cistern 19, the housing 11 being located so that it is immersed over the majority of its length.
- water enters the housing 11 via the tube 21 and flows upwardly through the gap between the housing side wall 12 and the cartridge side wall 25, and into the interior of the cartridge 15 via the "exposed" apertures 27, whereupon it comes in contact with the exposed upper surface of the water treatment material 34, the water within the device 10 continuing to rise up to the level of the water in the cistern tank 19.
- the upper end of the casing 25 is provided with out-turned tabs 36 which engage the inner wall of the housing 11. This minimises the likelihood of blockages forming in the flow path between the housing wall 12 and the casing side wall, e.g. caused by build-up of particles from the material 34. Any other form of spacer means so as to centralise the cartridge within the housing may be employed.
- the tube or conduit 21 may be formed to have an horizontal leg portion which projects into the bottom region of the housing 11 and serves as a support member for the cartridge 15 (in lieu of the ring 30).
- the horizontal leg portion is preferably formed with holes in its wall to assist water flow into the tube.
- the chamber 14 for receiving the cartridge 15 can be separated from the walls defining the reservoir 31, whilst in yet a further variation, the tube 21 can be formed as an integral part of the wall of the housing (so as to define a passageway) rather than as a separate element.
Landscapes
- 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)
- Sanitary Device For Flush Toilet (AREA)
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
- Toilet Supplies (AREA)
Abstract
a housing (11) forming a chamber (14) which is adapted to hold water treatment material means (34),
reservoir means (12) within the housing (11) for holding a reservoir (25) of water containing said water treatment material (34),
water flow path means (17) between the chamber (14) and said reservoir means (25),
water flow passageway means (21) extending upwardly away from said reservoir means (12), said passageway means (21) having its lower end (22) in communication with said reservoir means (12) at or adjacent its bottom wall (13), and its open upper end in flow communication with the cistern interior, said upper end being located (Y-Y) below the upper edge of the housing (11) (and below the level of the water within the cistern when full), whereby water, during the filling of the cistern (19) will flow into the reservoir means (12) upwardly along said water flow path means (17) and into the chamber (14), via said passageway means (21), whilst, when the cistern (19) is flushed, a portion only of the water within the device (10) (and containing said water treatment material) will be discharged into the cistern (19) via said passageway means (21).
Description
- This invention relates to an improved dispensing device for use in the cistern of a toilet system, wherein the device incorporates a chemical additive, such as a disinfecting and/or deodorising compound, which is arranged to disperse in water present in the device so that water containing the compound is delivered automatically to the toilet bowl when the cistern is emptied.
- Many different forms of toilet cistern dispensing devices are known in the art. In this regard, reference is made to Australian Patent Specification Nos. 564163, 261095, 288230 and U.S. Patent Specification No. 3604020. One of the problems associated with the prior art dispensing devices is that the water treatment material or additive (normally in solid form) tends to disintegrate and erode away relatively quickly. This is undesirable in that the working life of the device (normally, in "throw-away" form) is not very long, and also leads to excessive amounts of chemical material being charged with the flushing water resulting in staining of the toilet bowl which is aesthetically unattractive, particularly when the toilet is flushed after a prolonged quiescent period. The inventors have recognised that in order to effectively cleanse, disinfect and/or deodorise the flushing water, only a small amount of water treatment material or additive is needed to be mixed with the flushing water from the toilet cistern.
- It is an object of the present invention to provide an improved toilet cistern dispensing device wherein the rate of dispersal of the water treatment material contained therewithin is more efficiently controlled in comparison to prior art devices, which in turn results in the working life of the water treatment material being significantly extended.
- It is a further object of the present invention to provide a toilet flushing dispensing device which is of extremely simple design, of low cost and can be readily fitted to and removed from a toilet cistern system.
- It is a further object of the present invention to provide an improved dispensing device wherein use is made of a removable cartridge containing the water treatment material, whereby on the material being fully consumed, one need only insert a replacement cartridge, without having to remove the device in toto.
- According to this invention therefore, an improved passive dispensing device for use in dosing a toilet bowl with water treatment material comprises a housing forming a chamber which is adapted to hold water treatment material means, reservoir means within the housing for holding a reservoir of water containing said water treatment material, water flow path means between the chamber and said reservoir means, water flow passageway means extending upwardly away from said reservoir means, said passageway means having its lower end in communication with said reservoir means at or adjacent its bottom wall, and its open upper end in flow communication with the cistern interior, said upper end being located below the upper edge of the housing (and below the level of the water within the cistern when full), whereby water, during the filling of the cistern will flow into the reservoir means upwardly along said water flow path means and into the chamber, via said passageway means, whilst, when the cistern is flushed, a portion only of the water within the device (and containing said water treatment material) will be discharged into the cistern via said passageway means.
- Preferably, the water treatment material means comprises a removable cartridge having a tubular side wall having a plurality of apertures formed therein, said apertures being spaced along the length of the side wall, a closed bottom wall and an open upper end, the interior of the cartridge being filled (or nearly so) with solid water treatment material, said side wall being spaced from the inner walls of the container or housing so as to form said water flow path means.
- Preferably, the lower end of the drain tube connects to the reservoir means via an opening in the side wall of the housing, said opening being spaced a small distance, e.g. 5mm above the bottom wall of the housing.
- Preferably, the reservoir means is formed by a space between the cartridge bottom wall and the housing bottom wall so as to permit water to flow freely from the housing into the discharge tube or vice versa.
- Preferably, the discharge tube extends upwardly by a distance which is slightly less than half the overall height of the housing or container. The tube may be provided with a flow restrictor in its outlet end for reducing the flow rate of treated water from the device, and in turn the rate of release of the water treatment material.
- It will be appreciated that the height of the discharge tube is a factor which determines the volume of water discharged from the device, and that a reservoir of water containing water treatment material, will always be stored within the device, i.e. it never drains completely.
- In use, the device is partially immersed in the cistern water to a depth just below the upper end of the housing, whereupon water enters the chamber from the reservoir means, via the discharge tube, and a head of water is formed in the cartridge above the upper level of the water treatment material, which then becomes dispersed or dissolved in the water. Some of the dissolved material will diffuse into the water of the reservoir means ready for discharge into the cistern. When the cistern is flushed, treated water will be dispensed into the cistern once the level of water in the cistern falls, and such discharge will continue until the level of the water in the chamber drops to the level of the upper end of the discharge tube. A reservoir of treated water thus remains in the reservoir means ready for the next flush.
- With this arrangement, the water within the dispenser is maintained in a relatively quiet state which minimises the loss of water treatment material particularly when the toilet is not in use (i.e. during quiescent periods). Preferably, the water within the device contacts substantially only the upper surface of the water treatment material, whereby the rate of release of the material is very much controlled during the flushing/refilling cistern cycles and this significantly extends the working life of the dispensing device (without having to replace the water treatment material), and avoids any problems which normally arise owing to excessive discharge of such material during flushing, e.g. unsightly stains within the toilet bowl.
- In a preferred embodiment, as the water treatment material gradually dissolves away and the level of its upper surface slowly drops, further apertures in the side wall of the cartridge are progressively "exposed", whereby water which collects within the cartridge during the dispensing cycle of the device, will drain from the cartridge through the "exposed" apertures and flow downwardly through the annular space between the container side wall and the cartridge and eventually dispense through the discharge tube into the cistern.
- The water treatment material may be a solid block, and compositions for same are well known in the art. The composition can contain components for controlling the rate of release of the "active" material into the water.
- Preferably, the material is contained in disposable cartridges, or in a protective wrapping which dissolves in water. Refills can thus be simply inserted in the device without having to remove it from the cistern.
- In order to more fully explain the applicants' invention, an embodiment is described hereunder in some further detail with reference to and illustrated in the accompanying drawings in which:
- Fig. 1 is a schematic illustration of a dispenser installed in a toilet cistern;
- Fig. 2 is a vertical sectional view of the dispenser assembly of this embodiment;
- Fig. 3 is an "exploded" view of the assembly shown in Fig. 2; and
- Fig. 4 is a perspective view of the inner cartridge shown in Fig. 3 containing the chemical additive.
- In this embodiment, a toilet
cistern dispensing device 10 comprises a hollow cylindrical container orhousing 11 having atubular side wall 12 defining achamber 14, a closedbottom wall 13 and an open top, and a removablecylindrical cartridge 15 slidably located within thechamber 14, thehousing 11 andcartridge 15 being dimensioned so that with thecartridge 15 housed in thechamber 14, a smallannular clearance 17 exists between the side walls thereof. - The
housing 11 is formed of water impervious plastics material, and has attached to its side wall ahanger strap 18, for hookingly attaching thehousing 11 to a side wall of thetoilet cistern 19, or to theinlet tube 20 of thecistern 19, the positioning of thehousing 11 being selected so that when thecistern 19 is filled with water, thehousing 11 projects slightly above the level of the water in the cistern (refer Fig. 1). - The
container 11 is provided with an upwardly extendingdischarge tube 21 which in this embodiment, has its lower end connected to anaperture 22 in theside wall 12 of thecontainer 11 near to itsbottom wall 13, thetube 21 extending approximately parallel to theside wall 12 of thecontainer 11 exteriorly thereof and contiguous therewith. Thetube 21 terminates at its upper end at a level which is slightly below the mid-region of thecontainer 11. - The
removable cartridge 15 comprises a cup-shapedouter casing 25 of plastics material, the diameter of which is slightly less than the diameter of thecylindrical housing 11, the tubular side wall of thecasing 25 having a plurality of axially spaced, horizontal rows ofapertures 27 formed therein, theapertures 27 in each row being spaced circumferentially around thecasing 25, theapertures 27 in each adjacent row being in staggered relationship. - The
bottom wall 28 of thecasing 25 is closed and sits on top of asupport ring 30. Thecartridge 15 is thereby supported clear of thebottom wall 13 of thecontainer 11, and above the lower end of thetube 21. Thespace 31 forms a reservoir for water which enters thehousing 11 through thetube 21. Thering 30 is provided withopenings 32 in its side wall to permit water to flow freely through thereservoir 31 into thetube 21 and vice versa. -
Water treatment material 34 containing cleansing, colouring, disinfecting and/or perfumed agents, is contained in thecartridge 15, to a level below the upper end of thecasing 25, so that a space is formed above thematerial 34 in thecasing 25 and which forms a well in which water can collect. In this initial state, only a small number of theapertures 27 in the outercasing side wall 25 are "open" or "exposed". - In this embodiment, the material is in solid or paste form and fills the interior of the
cartridge 15 so that essentially only its upper surface makes effective contact with water, theapertures 27 being sufficiently small so that the contact between the water and thematerial 34 by virtue of theholes 27, does not have any significant effect on the dissolving or dispersion of thematerial 34. The material is desirably formulated so that it slowly dissolves in water, the pattern ofholes 27 being effective to ensure that thematerial 34 is consumed evenly, so that its upper surface slowly drops substantially horizontally. - The upper end of the
cartridge 15 is provided with atab 35 which serves as a handle for manually grasping thecartridge 15 to facilitate its insertion and withdrawal from thehousing 11, e.g. when areplacement cartridge 15 needs to be fitted, without having to remove the device in its entirety. - In use, the
dispensing device 10 is suspended in the tank of thetoilet cistern 19, for example by simply engaging itshanger strap 18 over the side wall of thecistern 19, thehousing 11 being located so that it is immersed over the majority of its length. As thedevice 10 is immersed in the water within thecistern 19, water enters thehousing 11 via thetube 21 and flows upwardly through the gap between thehousing side wall 12 and thecartridge side wall 25, and into the interior of thecartridge 15 via the "exposed"apertures 27, whereupon it comes in contact with the exposed upper surface of thewater treatment material 34, the water within thedevice 10 continuing to rise up to the level of the water in thecistern tank 19. - When the toilet cistern is flushed, a charge of water from the device (containing the water treatment material 34) is displaced through the
discharge tube 21 into thecistern 19, whereupon it mixes with the water in the cistern tank and in turn is flushed into the toilet bowl. If water is emptied from the cistern tank quicker than the rate of discharge of water from the dispensing device, water from the device will also meter into the cistern during the initial stages of refilling. The level of water within thecontainer 11 drops until it coincides with the level of the upper end of thetube 21. Upon the cistern being refilled, the water in thecontainer 11 returns to its previous level. - As the
water treatment material 34 is consumed and the level of its upper surface drops, "new" apertures 27 in the side wall of thecartridge casing 25 become "exposed" to thereby permit water collected within the casing to drain therefrom during the flushing cycle. Desirably, water within thehousing 11 makes contact with thewater treatment material 34 essentially only across its upper surface, this permitting the rate of dispersion of thewater treatment material 34 to be effectively controlled. - In order to maintain the
annular gap 17 between thehousing 11 and thecartridge 15, the upper end of thecasing 25 is provided with out-turnedtabs 36 which engage the inner wall of thehousing 11. This minimises the likelihood of blockages forming in the flow path between thehousing wall 12 and the casing side wall, e.g. caused by build-up of particles from thematerial 34. Any other form of spacer means so as to centralise the cartridge within the housing may be employed. - In variation to the above embodiment, the tube or
conduit 21 may be formed to have an horizontal leg portion which projects into the bottom region of thehousing 11 and serves as a support member for the cartridge 15 (in lieu of the ring 30). The horizontal leg portion is preferably formed with holes in its wall to assist water flow into the tube. - In another variation, the
chamber 14 for receiving thecartridge 15 can be separated from the walls defining thereservoir 31, whilst in yet a further variation, thetube 21 can be formed as an integral part of the wall of the housing (so as to define a passageway) rather than as a separate element.
A brief consideration of the above-described embodiment will indicate that the invention provides for an extremely simple yet very effective toilet cistern dispensing device which allows the water treatment material contained therewithin to be efficiently consumed in a way which greatly extends the working life of the dispensing device (for a given amount of material) and which allows a replacement cartridge to be fitted easily and quickly, without having to remove the container or housing for the cartridge from the cistern.
Claims (14)
- A passive dispensing device for use in dosing a toilet bowl with water treatment material comprising:
a housing forming a chamber which is adapted to hold water treatment material means,
reservoir means within the housing for holding a reservoir of watercontaining said water treatment material,
water flow path means between the chamber and said reservoir means,
water flow passageway means extending upwardly away from said reservoirs means, said passageway means having its lower end in communication with said reservoir means at or adjacent its bottom wall, and its open upper end in flow communication with the cistern interior, said upper end being located below the upper edge of the housing (and below the level of the water within the cistern when full), whereby water, during the filling of the cistern will flow into the reservoir means upwardly along said water flow path means and into the chamber, via said passageway means, whilst, when the cistern is flushed, a portion only of the water within the device (and containing said water treatment material) will be discharged into the cistern via said passageway means. - A dispensing device according to claim 1 comprising support means for supporting said water treatment material means above the bottom wall of the housing, the space formed between the water treatment material means and said housing bottom wall constituting said reservoir means.
- A dispensing device according to claim 2 wherein said water treatment material means comprises a removable cartridge having an outer wall which, when the cartridge is positioned in the chamber, is spaced from the chamber wall so as to form said water flow path means which extends uninterruptedly around the cartridge, there being apertures in the outer wall of the cartridge to permit water to flow upwardly through said water flow path into the cartridge to mix with water treatment material contained therewithin and subsequently drained therefrom during flushing of the cistern.
- A dispensing device according to claim 3 wherein both the housing and the cartridge comprise cylindrical tubes, said passage formed therebetween being annular in shape.
- A dispensing device according to claim 3 wherein said cartridge is formed of water impervious material, said apertures being arranged in vertically spaced circumferential rows along the length thereof.
- A dispensing device according to any one of claims 3 to 5 comprising spacer means between said cartridge and said housing for centrally locating said cartridge within the housing.
- A dispensing device according to any one of the preceding claim wherein said passageway means extends upwardly by a distance which is slightly less than half the overall height of the housing.
- A dispensing device according to any one of the preceding claims wherein said passageway means comprises a discharge tube which extends approximately parallel to the side wall of the housing exteriorly thereof and in contiguous relation therewith, the lower end of said tube connecting to said reservoir means via an opening in the side wall of the housing.
- A dispensing device according to any one of the preceding claims wherein said housing comprises hanger means for attaching the device to a side wall of the toilet cistern.
- A dispensing device according to any one of claims 3 to 9 wherein said cartridge comprises an upstanding tab projecting from its upper edge which can be manually grasped to remove the cartridge from the housing when the water treatment material is fully consumed.
- A dispensing device according to claim 2 wherein said support means comprises a locating ring fixed to the bottom wall of the housing, centrally thereof, the side wall of said ring being provided with openings around its lower edge to assist water flow through said reservoir means.
- A dispensing device according to any one of the preceding claims wherein said passageway means has a diameter which is small relative to the diameter of said housing.
- A dispensing device according to any one of the preceding claims wherein said passageway means is located externally of the housing.
- A passive dispensing device substantially as hereinbefore described with reference to and as illustrated in Figs. 1 to 4 of the drawings herein.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPJ764789 | 1989-11-30 | ||
AU66721/90A AU621010B2 (en) | 1989-11-30 | 1990-11-19 | A dispensing device for a toilet cistern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0528073A1 true EP0528073A1 (en) | 1993-02-24 |
EP0528073B1 EP0528073B1 (en) | 1994-09-28 |
Family
ID=25635197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91201164A Expired - Lifetime EP0528073B1 (en) | 1989-11-30 | 1991-05-15 | A dispensing device for a toilet cistern |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0528073B1 (en) |
AT (1) | ATE112349T1 (en) |
AU (1) | AU621010B2 (en) |
DE (1) | DE69104355T2 (en) |
DK (1) | DK0528073T3 (en) |
ES (1) | ES2064883T3 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996027714A1 (en) * | 1995-03-03 | 1996-09-12 | S.C. Johnson & Son, Inc. | Passive lavatory cleanser dispensing system |
US8032953B2 (en) | 2003-06-16 | 2011-10-11 | Jeyes Group Limited | Liquid dispensing device |
EP2886728A1 (en) | 2013-12-20 | 2015-06-24 | Manuel Losada Campos | A cistern with a product dispenser |
CN109431347A (en) * | 2018-12-14 | 2019-03-08 | 九牧厨卫股份有限公司 | A kind of sustained release mechanism and bathtub |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU660525B2 (en) * | 1992-02-13 | 1995-06-29 | Neta-Brymac (N.S.W.) Pty Limited | Toilet cage dispenser |
NZ245900A (en) * | 1992-02-13 | 1995-09-26 | Neta Brymac Nsw Pty Ltd | Dispensing cage for toilet bowl deodorant openable while in toilet bowl |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2067409A (en) * | 1980-01-15 | 1981-07-30 | Twinoak Products Inc | Improved system for toilet bowl cleaning |
GB2098253A (en) * | 1981-05-08 | 1982-11-17 | Oreal | Disinfecting water closet pans |
EP0140692A2 (en) * | 1983-10-28 | 1985-05-08 | Unilever Plc | Lavatory cistern dispenser |
EP0168075A1 (en) * | 1984-06-08 | 1986-01-15 | The Procter & Gamble Company | Passive dosing dispenser employing captive, internally-generated as bubble to provide product isolation |
EP0180451A2 (en) * | 1984-11-01 | 1986-05-07 | Brookline Delta Limited | Dispenser for soluble material |
FR2589498A1 (en) * | 1985-11-05 | 1987-05-07 | Oreal | Device for distributing water-soluble products in a water-flushing device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU7836081A (en) * | 1980-12-08 | 1982-06-17 | American Cyanamid Company | Releasing additive into water tank and bowl |
NZ205595A (en) * | 1982-09-17 | 1987-06-30 | Reckitt & Colmann Prod Ltd | Dispensing device for suspension in toilet cistern |
-
1990
- 1990-11-19 AU AU66721/90A patent/AU621010B2/en not_active Ceased
-
1991
- 1991-05-15 DE DE69104355T patent/DE69104355T2/en not_active Expired - Fee Related
- 1991-05-15 ES ES91201164T patent/ES2064883T3/en not_active Expired - Lifetime
- 1991-05-15 DK DK91201164.0T patent/DK0528073T3/en active
- 1991-05-15 EP EP91201164A patent/EP0528073B1/en not_active Expired - Lifetime
- 1991-05-15 AT AT91201164T patent/ATE112349T1/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2067409A (en) * | 1980-01-15 | 1981-07-30 | Twinoak Products Inc | Improved system for toilet bowl cleaning |
GB2098253A (en) * | 1981-05-08 | 1982-11-17 | Oreal | Disinfecting water closet pans |
EP0140692A2 (en) * | 1983-10-28 | 1985-05-08 | Unilever Plc | Lavatory cistern dispenser |
EP0168075A1 (en) * | 1984-06-08 | 1986-01-15 | The Procter & Gamble Company | Passive dosing dispenser employing captive, internally-generated as bubble to provide product isolation |
EP0180451A2 (en) * | 1984-11-01 | 1986-05-07 | Brookline Delta Limited | Dispenser for soluble material |
FR2589498A1 (en) * | 1985-11-05 | 1987-05-07 | Oreal | Device for distributing water-soluble products in a water-flushing device |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996027714A1 (en) * | 1995-03-03 | 1996-09-12 | S.C. Johnson & Son, Inc. | Passive lavatory cleanser dispensing system |
AU693324B2 (en) * | 1995-03-03 | 1998-06-25 | S.C. Johnson & Son, Inc. | Passive lavatory cleanser dispensing system |
US8032953B2 (en) | 2003-06-16 | 2011-10-11 | Jeyes Group Limited | Liquid dispensing device |
EP2886728A1 (en) | 2013-12-20 | 2015-06-24 | Manuel Losada Campos | A cistern with a product dispenser |
CN109431347A (en) * | 2018-12-14 | 2019-03-08 | 九牧厨卫股份有限公司 | A kind of sustained release mechanism and bathtub |
CN109431347B (en) * | 2018-12-14 | 2024-02-06 | 九牧厨卫股份有限公司 | Sustained release mechanism and bathtub |
Also Published As
Publication number | Publication date |
---|---|
DE69104355T2 (en) | 1995-02-16 |
AU621010B2 (en) | 1992-02-27 |
ES2064883T3 (en) | 1995-02-01 |
AU6672190A (en) | 1991-06-06 |
DK0528073T3 (en) | 1994-10-24 |
EP0528073B1 (en) | 1994-09-28 |
ATE112349T1 (en) | 1994-10-15 |
DE69104355D1 (en) | 1994-11-03 |
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