CA2021741A1 - Delayed release dispenser - Google Patents
Delayed release dispenserInfo
- Publication number
- CA2021741A1 CA2021741A1 CA002021741A CA2021741A CA2021741A1 CA 2021741 A1 CA2021741 A1 CA 2021741A1 CA 002021741 A CA002021741 A CA 002021741A CA 2021741 A CA2021741 A CA 2021741A CA 2021741 A1 CA2021741 A1 CA 2021741A1
- Authority
- CA
- Canada
- Prior art keywords
- container
- dispensing system
- fluid
- opening
- stream
- 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.)
- Abandoned
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
- E03D9/031—Devices connected to or dispensing into the flushing pipe
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
- C11D17/0056—Lavatory cleansing blocks
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
- C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
-
- 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
-
- 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
- E03D9/032—Devices connected to or dispensing into the bowl
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Epidemiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Abstract
C 7195 (R) ABSTRACT
Dispensing system for delivering amounts of a chemical product to a discontinuous stream of a fluid such as water, comprising a substantially closed container for holding the chemical product and fastening means for holding the container in place, said container having an opening both for receiving the stream of the fluid and for allowing it to flow out again after a delay, said system being free of any moving parts. The system may be used in toilet bowls as well as in spray-cleaning machines.
Dispensing system for delivering amounts of a chemical product to a discontinuous stream of a fluid such as water, comprising a substantially closed container for holding the chemical product and fastening means for holding the container in place, said container having an opening both for receiving the stream of the fluid and for allowing it to flow out again after a delay, said system being free of any moving parts. The system may be used in toilet bowls as well as in spray-cleaning machines.
Description
` 2112~7~:~
C 7195 (R) DELAYED RELEASE DISPENSER
The present invention rPlates to a dispenser. More in particular, it relates to a delayed release dispensing system for deliverin~ amounts of a chemical product to a discontinuous stream of a fluid, such as the flush water in a toilet. The chemicals to be delivered by the dispenser may be cleansing agents, sanitizing agents, deodorants and the like.
Lavatory rim block dispensing devices are known in the art.
They may, for instance, comprise a cage-like container with holes and a hook for mounting inside the toilet bowl. Inside the container there is a solid block of a sparingly soluble cleansing agent, which is continuously delivered to thP flush water for the duration of the flush.
When such cage-like containers are used, most of the delivered cleansing agent does not remain in the bowl to fulfil its cleansing purposes but is directly flushed into the sewage system. This inefficiency constitutes an economical disadvantage and is environmentally undesirable there being a growing tendency from an environmental point o~
view to reduce the amount of chemicals which are fed into the sewage system. Moreover, it is o~ten difficult to attain an effective level of the chemical in the toilet bowl because the block of chemicaI is sparingly soluble and deli~ery only takes place during the relatively short period of the flush.
It has therefore been proposed to provide a time-delay to the in-bowl dispensing systems, such that the greater part of the chemical is only added to the last part of the flush water, most of which remains in the bowl a~ter the flush.
For instance, the European patent application 92,283 ~Unilever) describes a cage-like toilet bowl dispenser which is equipped with a siphon system in order to achieve a time : ~' ''; : '.
::
, ~ 20217~
C 7195 (R) DELAYED RELEASE DISPENSER
The present invention rPlates to a dispenser. More in particular, it relates to a delayed release dispensing system for deliverin~ amounts of a chemical product to a discontinuous stream of a fluid, such as the flush water in a toilet. The chemicals to be delivered by the dispenser may be cleansing agents, sanitizing agents, deodorants and the like.
Lavatory rim block dispensing devices are known in the art.
They may, for instance, comprise a cage-like container with holes and a hook for mounting inside the toilet bowl. Inside the container there is a solid block of a sparingly soluble cleansing agent, which is continuously delivered to thP flush water for the duration of the flush.
When such cage-like containers are used, most of the delivered cleansing agent does not remain in the bowl to fulfil its cleansing purposes but is directly flushed into the sewage system. This inefficiency constitutes an economical disadvantage and is environmentally undesirable there being a growing tendency from an environmental point o~
view to reduce the amount of chemicals which are fed into the sewage system. Moreover, it is o~ten difficult to attain an effective level of the chemical in the toilet bowl because the block of chemicaI is sparingly soluble and deli~ery only takes place during the relatively short period of the flush.
It has therefore been proposed to provide a time-delay to the in-bowl dispensing systems, such that the greater part of the chemical is only added to the last part of the flush water, most of which remains in the bowl a~ter the flush.
For instance, the European patent application 92,283 ~Unilever) describes a cage-like toilet bowl dispenser which is equipped with a siphon system in order to achieve a time : ~' ''; : '.
::
, ~ 20217~
2 C 7195 (R) delay during the flush cycle. ~lthough such a dispenser functions satisfactorily in that some of the dissolved chemical is delivered at the end of the ~lush, the ef~iciency is still low. Furthermore, drip stains are ~ometimes observed and the cost of manufacturing is high due to the complexity of the siphon systemO
The international patent application W0-~3/01974 ~Wellcome) discloses a liquid dispensing system for connecting to a flushing-water pipe, comprising a connecting pipe and a casing having therein a chamber and a float-operated valve, whereby a predetermined amount o~ a liquid product is dispensed into the chamber when the chamber is flooded with flush water.
It is an object of the present invention to provide an improved delayed release dispensing system which obviates the above-mentioned disadvantagesO Above all, it should effectively provide a time delay such that the chemicals are used more efficiently and at the same time the system should be easy and economical to manufacture.
We have now ~ound that these and other objects can be achieved by the delayed release dispensing system of the present invention which comprises a substantially clos~d container for holding the chemical product and fastening means for mounting the container, said container having an opening both ~or receiving the stream oP a fluid, such as water, and for allowing it to flow out again after a delay said system being free of any moving parts.
Preferably, there are provided ~eans to direct the stream of the ~luid to the opening in the container.
It is advantageous in the dispensing system according to the invention if the opening is placed above the lowest point of the container, such that some of the fluid is retained inside the container after the stream oX the fluid has ceased.
.
.
.
- 2021~
The international patent application W0-~3/01974 ~Wellcome) discloses a liquid dispensing system for connecting to a flushing-water pipe, comprising a connecting pipe and a casing having therein a chamber and a float-operated valve, whereby a predetermined amount o~ a liquid product is dispensed into the chamber when the chamber is flooded with flush water.
It is an object of the present invention to provide an improved delayed release dispensing system which obviates the above-mentioned disadvantagesO Above all, it should effectively provide a time delay such that the chemicals are used more efficiently and at the same time the system should be easy and economical to manufacture.
We have now ~ound that these and other objects can be achieved by the delayed release dispensing system of the present invention which comprises a substantially clos~d container for holding the chemical product and fastening means for mounting the container, said container having an opening both ~or receiving the stream oP a fluid, such as water, and for allowing it to flow out again after a delay said system being free of any moving parts.
Preferably, there are provided ~eans to direct the stream of the ~luid to the opening in the container.
It is advantageous in the dispensing system according to the invention if the opening is placed above the lowest point of the container, such that some of the fluid is retained inside the container after the stream oX the fluid has ceased.
.
.
.
- 2021~
3 C 7195 (R) Preferably, there are provided one or more further openings in the upper part of the container for equalizing the air pressure in and outside the container when the container is being ~illed with the fluid.
It is especially preferred when the opening in the container for letting the fluid in and out is non-wetting to the fluid to reduce dripping. For use with aqueous liquids, the openings may have a hydrophobic finish to reduce dripping.
Alternatively, the entire container may be made from an hydrophobic material or an hydrophobic insert may be introduced in the openings. Suitable materials ~or these purposes include for instance poly tetra-fluoro Pthylene (te~lon~ and silicone resins.
The dispensing system according to the invention may be used as a toilet bowl dispensing system. In that case, the fluid is water and there are provided fa6t~nlng means to mount the container inside a toilet bowl~ It i6 preferred when thera are also provided means to lock the dispensing system in place under the rim of the toilet bowl. For example, a pin may be provided which fits into a hole under the rim.
Preferably, there is provided a ~econdary support inside the container to cradle the block of chemical. The dispenser of the invention may further comprise one or more additional compartments which are open to the atmosphere, and which are designed to deliver volatile components such as perfume, from a suitable impregnated pad, a chemical block or gel.
The dispensing system according to the invention may also be used inside spray-cleaning machines such as dish washing machines, more in particular in indu~trial ware washing machines. In that case, the dispenser comprises a de~lector funnel to direct the water to the opening in the container.
According to a further embodiment o~ the invention, the .:
: .
' , 4 C 7195 (R) dispensing system may be attached to the end of pipes and taps. In that case it comprises a suitable clamping device and a deflector to direct the fluid into the container.
The invention will now be further illustrated by means of the following speci~ic descriptions, in which:
Figure 1 is a schematic cross-section through a toilet bowl dispensing system according to the invention.
Figure 2 is a schematic projection o~ the toilet bowl lo dispensing system shown in figure 1 along the line A-A.
Figure 3 is a schematic perspectiv~ view o~ a dispPnsing system according to the invention for use in a mechanical ware washing machine.
Figurs 4 i8 a schematic perspective view of a dispensing system according to the invention attached to a pipe or tap.
Figure 5 is a schematic perspective view of a dispensing system according to the invention for use in th~ sink on top of a Japanese type of toilet.
2~ Figure 1 is a cross-section through a toilet bowl dispensing system showing a substantially closed container 1 to be held close to the flush water channel by an appropriate hanger 2 which fits onto the toilet rim. Inside the container 1 there is a block of a sparingly soluble chemical 3, suitable for cleaning and sanitizing a toilet ~owl. Such blocks are known in the art. Furthermore, the container 1 possesses a hole 4 allowing the flush water which may be taken ~rom the flush stream by a deflector 5 to enter the container 1. Near the end of the flush the pressure of the water flow into the container 1 decreases and is finally reduced to zero. The water inside the container which has been in contact with the block of chemical for some time now flows back through the opening 4 into the toilet bowl. Through the optional holes 6 at the top o the ~evice air may escape during the filling phase, thereby allowing more water to enter the container.
The air may be perfumed so that a perfume is dispensed during the early stages of flushing the toilet. In a depicted prefexred embodiment a 6ump 7 is formed because the opening 4 - . ,~
., : . . , . . . .
.: , . ~ . , .:
. .. . ...
2~217~
C 7195 (R) is situated above the lowest point of the ~ontainer 1. A
small volume of water is retained in this sump, dissolving ~ome of the chemical to form a solution ready for the next flush.
Although in the depicted situation there is only one container 1, it can also be envisaged that therP are provided more containers, each containing a separate type of chemical. ~his is especially useful when several mutually incompatible chemicals have to be dispensed.
In figure 2 a sche~atical projection of the device of figure 1 is shown along the line A-A. It shows a wedge-shaped part 5 to direct the flow of flush water to the opening 4 in the container 1.
Figure 3 shows a dispensing system according to the invention for use in a mechanical ware washing machine. The discontinuous stream of water originates from the rotating spray arms or a 6hower head. The device comprises a substantially closed container 10 holding a sparingly soluble block of chemical 13, which is in this case a caustic detergent composition. By means of the fastening means 12 for mounting the container, the device is positioned inside the machine to receive water from the shower head. Th~ container has an opening 14 allowing the spray water caught in th~
deflector funnel 15 to enter the container rapidly to contact the block of chemical. The entry of the spray water is facilitated by the small opening 16 for equalizing the pressure inside and outside the container. When the funnel water back pressure i6 reduced near the end of the spraying, a solution of the chemical flows back from the opening 14 via opening 18 into the interior of the machine. In the shown preferred embodiment of the invention, the opening 14 is positioned above the lowest point of the container 10 such that a residual amount of water is left in sump 17 to di~solve some of the chemical ~or the next spraying cycle.
.
.; ~ . ' :
.
'' '' ' ' ' . ' ' ' ' ' ' .
~0~174 ~.
6 C 7195 ~) Figure 4 show~ a dispensing system according to the invention ~or use on an inlet pipe or tap. The discontinuous stream of fluid indicated by the arrows originates from a pipe or tap 21. The device comprises a substantially closed cylindrical container 20 holding one or more blocks o~ a chemical 23. The device is held at the end of a pipe 21 by means o~ fastening means 22, ~uch that li~uid may flow through the device. The container 20 has an opening 24 allowing liquid to enter until it is ~illed or until the back pressure stops the entry of ~urther liquid. The liquid is directed towards the opening 24 by the de~lection means 25.
When the liquid pressure i~ reduced, for example when the tap is closed, the liquid containing the chemical ~lows from the container through opening 24 and down the pipe. In the shown embodiment the opening 24 is positioned above the lowest point of the container such thak a residual amount of liquid is left to dissolve some of the chemical 23 for the next time liquid is drawn from the pipe.
Figure 5 shows a dispensing system according to the invention for use in the sink which can be found on top of a Japanese-type toilet. The water used to wash the hands is thereby collected in a tank and used subsequently to flush the toilet. The device according to the invention is placed onto the drain of the sink and i~ thus used to deliver an amount of cleaning or sanitizing agent to the ~lush water in the toilet. The device shown in Figure 5 comprises a substantially closed container 26 having therein a block of a sparingly soluble chemical 27, suitable for cleaning and sanitizing a toilet bowl. As ~aid before, such blocks are known in the art. The device also possesses fa~tening means in the form of two hooks 28 to keep it in place onto the drain of the sink. The upwardly curved edge 29 o~ the device causes the water falling from the tap to enter the container via hole 39. When the tap i~ closed and there i~ no longer water dropping onto the device, the pre~sure o~ the water ~low into the aontainer dearea~es and i~ ~inally reduced ko zero. The water inside the container which has been in .
: , .. , . : ; ~
- . . . .
- . . :,, . ~ . :
' , :,'. . : ~. , . . . . . ~ :
~217~.~
7 C 7195 (R) contact with the block of chemical for some time now flows back through the opening 30 onto the edge 29. This edge comprises a number of small holes 31 which allow the water ko flow down the drain of the sink into the tank, where it is kept until the toilet is flushed again.
- ' ` ' ~ '.` . ' ' ' ~ ": , . . .
.: , ,' : ' .... :
It is especially preferred when the opening in the container for letting the fluid in and out is non-wetting to the fluid to reduce dripping. For use with aqueous liquids, the openings may have a hydrophobic finish to reduce dripping.
Alternatively, the entire container may be made from an hydrophobic material or an hydrophobic insert may be introduced in the openings. Suitable materials ~or these purposes include for instance poly tetra-fluoro Pthylene (te~lon~ and silicone resins.
The dispensing system according to the invention may be used as a toilet bowl dispensing system. In that case, the fluid is water and there are provided fa6t~nlng means to mount the container inside a toilet bowl~ It i6 preferred when thera are also provided means to lock the dispensing system in place under the rim of the toilet bowl. For example, a pin may be provided which fits into a hole under the rim.
Preferably, there is provided a ~econdary support inside the container to cradle the block of chemical. The dispenser of the invention may further comprise one or more additional compartments which are open to the atmosphere, and which are designed to deliver volatile components such as perfume, from a suitable impregnated pad, a chemical block or gel.
The dispensing system according to the invention may also be used inside spray-cleaning machines such as dish washing machines, more in particular in indu~trial ware washing machines. In that case, the dispenser comprises a de~lector funnel to direct the water to the opening in the container.
According to a further embodiment o~ the invention, the .:
: .
' , 4 C 7195 (R) dispensing system may be attached to the end of pipes and taps. In that case it comprises a suitable clamping device and a deflector to direct the fluid into the container.
The invention will now be further illustrated by means of the following speci~ic descriptions, in which:
Figure 1 is a schematic cross-section through a toilet bowl dispensing system according to the invention.
Figure 2 is a schematic projection o~ the toilet bowl lo dispensing system shown in figure 1 along the line A-A.
Figure 3 is a schematic perspectiv~ view o~ a dispPnsing system according to the invention for use in a mechanical ware washing machine.
Figurs 4 i8 a schematic perspective view of a dispensing system according to the invention attached to a pipe or tap.
Figure 5 is a schematic perspective view of a dispensing system according to the invention for use in th~ sink on top of a Japanese type of toilet.
2~ Figure 1 is a cross-section through a toilet bowl dispensing system showing a substantially closed container 1 to be held close to the flush water channel by an appropriate hanger 2 which fits onto the toilet rim. Inside the container 1 there is a block of a sparingly soluble chemical 3, suitable for cleaning and sanitizing a toilet ~owl. Such blocks are known in the art. Furthermore, the container 1 possesses a hole 4 allowing the flush water which may be taken ~rom the flush stream by a deflector 5 to enter the container 1. Near the end of the flush the pressure of the water flow into the container 1 decreases and is finally reduced to zero. The water inside the container which has been in contact with the block of chemical for some time now flows back through the opening 4 into the toilet bowl. Through the optional holes 6 at the top o the ~evice air may escape during the filling phase, thereby allowing more water to enter the container.
The air may be perfumed so that a perfume is dispensed during the early stages of flushing the toilet. In a depicted prefexred embodiment a 6ump 7 is formed because the opening 4 - . ,~
., : . . , . . . .
.: , . ~ . , .:
. .. . ...
2~217~
C 7195 (R) is situated above the lowest point of the ~ontainer 1. A
small volume of water is retained in this sump, dissolving ~ome of the chemical to form a solution ready for the next flush.
Although in the depicted situation there is only one container 1, it can also be envisaged that therP are provided more containers, each containing a separate type of chemical. ~his is especially useful when several mutually incompatible chemicals have to be dispensed.
In figure 2 a sche~atical projection of the device of figure 1 is shown along the line A-A. It shows a wedge-shaped part 5 to direct the flow of flush water to the opening 4 in the container 1.
Figure 3 shows a dispensing system according to the invention for use in a mechanical ware washing machine. The discontinuous stream of water originates from the rotating spray arms or a 6hower head. The device comprises a substantially closed container 10 holding a sparingly soluble block of chemical 13, which is in this case a caustic detergent composition. By means of the fastening means 12 for mounting the container, the device is positioned inside the machine to receive water from the shower head. Th~ container has an opening 14 allowing the spray water caught in th~
deflector funnel 15 to enter the container rapidly to contact the block of chemical. The entry of the spray water is facilitated by the small opening 16 for equalizing the pressure inside and outside the container. When the funnel water back pressure i6 reduced near the end of the spraying, a solution of the chemical flows back from the opening 14 via opening 18 into the interior of the machine. In the shown preferred embodiment of the invention, the opening 14 is positioned above the lowest point of the container 10 such that a residual amount of water is left in sump 17 to di~solve some of the chemical ~or the next spraying cycle.
.
.; ~ . ' :
.
'' '' ' ' ' . ' ' ' ' ' ' .
~0~174 ~.
6 C 7195 ~) Figure 4 show~ a dispensing system according to the invention ~or use on an inlet pipe or tap. The discontinuous stream of fluid indicated by the arrows originates from a pipe or tap 21. The device comprises a substantially closed cylindrical container 20 holding one or more blocks o~ a chemical 23. The device is held at the end of a pipe 21 by means o~ fastening means 22, ~uch that li~uid may flow through the device. The container 20 has an opening 24 allowing liquid to enter until it is ~illed or until the back pressure stops the entry of ~urther liquid. The liquid is directed towards the opening 24 by the de~lection means 25.
When the liquid pressure i~ reduced, for example when the tap is closed, the liquid containing the chemical ~lows from the container through opening 24 and down the pipe. In the shown embodiment the opening 24 is positioned above the lowest point of the container such thak a residual amount of liquid is left to dissolve some of the chemical 23 for the next time liquid is drawn from the pipe.
Figure 5 shows a dispensing system according to the invention for use in the sink which can be found on top of a Japanese-type toilet. The water used to wash the hands is thereby collected in a tank and used subsequently to flush the toilet. The device according to the invention is placed onto the drain of the sink and i~ thus used to deliver an amount of cleaning or sanitizing agent to the ~lush water in the toilet. The device shown in Figure 5 comprises a substantially closed container 26 having therein a block of a sparingly soluble chemical 27, suitable for cleaning and sanitizing a toilet bowl. As ~aid before, such blocks are known in the art. The device also possesses fa~tening means in the form of two hooks 28 to keep it in place onto the drain of the sink. The upwardly curved edge 29 o~ the device causes the water falling from the tap to enter the container via hole 39. When the tap i~ closed and there i~ no longer water dropping onto the device, the pre~sure o~ the water ~low into the aontainer dearea~es and i~ ~inally reduced ko zero. The water inside the container which has been in .
: , .. , . : ; ~
- . . . .
- . . :,, . ~ . :
' , :,'. . : ~. , . . . . . ~ :
~217~.~
7 C 7195 (R) contact with the block of chemical for some time now flows back through the opening 30 onto the edge 29. This edge comprises a number of small holes 31 which allow the water ko flow down the drain of the sink into the tank, where it is kept until the toilet is flushed again.
- ' ` ' ~ '.` . ' ' ' ~ ": , . . .
.: , ,' : ' .... :
Claims (11)
1. Dispensing system for delivering amounts of a chemical product to a discontinuous stream of a fluid, comprising a substantially closed container (1) for holding the chemical product (3) and fastening means (2) for holding the container in place, said container having an opening (4) both for receiving the stream of a fluid and for allowing it to flow out again after a delay, said system being free of any moving parts.
2. Dispensing system according to Claim 1, further comprising means (5) to direct the stream of fluid to the opening in the container.
3. Dispensing system according to Claim 1, wherein the opening (4) is placed above the lowest point of the container, such that some of the fluid is retained inside the container after the stream of fluid has ceased.
4. Dispensing system according to Claim 1, whereby there are provided one or more further openings (6) in the upper part of the container for equalizing the air pressure in and outside the container when the container is being filled with fluid.
5. Dispensing system according to Claim 1, whereby the opening (4) in the container is non-wetting to the fluid to reduce dripping.
6. Dispensing system according to Claim 1, whereby the opening (4) in the container has a hydrophobic finish to reduce dripping of an aqueous fluid.
7. Dispensing system according to Claim 1 for use inside a toilet bowl, comprising fastening means for mounting the container inside a toilet bowl.
12 C 7195 (R)
12 C 7195 (R)
8. Dispensing system according to Claim 1 for use inside a toilet bowl, further comprising means to lock the system in place under the rim of the toilet bowl.
9. Dispensing system according to Claim 1 for use in spray-cleaning machines, comprising a deflector funnel (15) to direct the water to the opening (14) in the container (10).
10. Dispensing system according to Claim 1 for use on the end of pipes and taps, comprising a suitable clamping device (22) and a deflector (25) to direct the fluid to the opening (24) in the container (20).
11. The dispensing system as claimed in claim 1 and substantially as described herein.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB898917224A GB8917224D0 (en) | 1989-07-27 | 1989-07-27 | Dispensing system |
| GB8917224.1 | 1989-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2021741A1 true CA2021741A1 (en) | 1991-01-28 |
Family
ID=10660740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002021741A Abandoned CA2021741A1 (en) | 1989-07-27 | 1990-07-23 | Delayed release dispenser |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0413373B1 (en) |
| JP (1) | JPH0384130A (en) |
| AU (1) | AU631664B2 (en) |
| BR (1) | BR9003646A (en) |
| CA (1) | CA2021741A1 (en) |
| DE (1) | DE69001002T2 (en) |
| ES (1) | ES2041119T3 (en) |
| GB (1) | GB8917224D0 (en) |
| ZA (1) | ZA905853B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1016052C2 (en) * | 2000-08-30 | 2002-03-01 | Robert Marc Fifield | Release method for dispensing active component such as algicide onto surface, especially for road signs, using carrier made from degradable material |
| NL1016645C2 (en) * | 2000-11-17 | 2002-05-22 | Sara Lee De Nv | Device with toilet care effect is suspended on edge of toilet basin and comprises reservoir in which is block |
| CN1267542C (en) * | 2001-11-13 | 2006-08-02 | 雷克特本克斯尔有限公司 | Improvements for water closet cleaning wares |
| WO2011070755A1 (en) | 2009-12-07 | 2011-06-16 | パナソニック株式会社 | Imaging device and control method for same |
| CN102804751B (en) | 2011-01-31 | 2016-08-03 | 松下电器产业株式会社 | Image recovery device, camera head and image recovery method |
| US8890996B2 (en) | 2012-05-17 | 2014-11-18 | Panasonic Corporation | Imaging device, semiconductor integrated circuit and imaging method |
| US9403131B2 (en) | 2013-03-14 | 2016-08-02 | Ecolab Usa Inc. | Method for dispensing solid products |
| US9662618B2 (en) | 2013-03-14 | 2017-05-30 | Ecolab Usa Inc. | Solid product dispenser |
| DE112015003368A5 (en) | 2014-07-21 | 2017-04-06 | Mohammad Reza Amiri | Device for placing in a toilet bowl for dispensing a substance during the flushing process in the flushing water of a toilet flush and toilet bowl with such a device |
| DE102014010620A1 (en) * | 2014-07-21 | 2016-01-21 | Mohammad Reza Amiri | Device for placing in a toilet bowl for dispensing a substance during the flushing process in the flushing water of a toilet flush and toilet bowl with such a device |
| US10549245B2 (en) | 2014-08-05 | 2020-02-04 | Ecolab Usa Inc. | Apparatus and method for dispensing solutions from solid products |
| JP6437264B2 (en) * | 2014-09-30 | 2018-12-12 | アース製薬株式会社 | Aroma cleaning container |
| WO2019160842A1 (en) | 2018-02-13 | 2019-08-22 | Ecolab Usa Inc. | Portable solid product dispenser and use thereof, and method of dispensing a solution of a fluid and a solid product |
| JP2020105797A (en) * | 2018-12-27 | 2020-07-09 | 小林製薬株式会社 | Chemical supply device |
| JP2020105798A (en) * | 2018-12-27 | 2020-07-09 | 小林製薬株式会社 | Chemical supply device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2130467A (en) * | 1968-03-18 | 1969-09-25 | Herbert John Byne | Means for infusing a cleansing, deodorizing and germicidal substance into the water flowing froma water cistern |
| GB2098253B (en) * | 1981-05-08 | 1985-07-03 | Oreal | Disinfecting water closet pans |
| FR2532346B1 (en) * | 1982-08-26 | 1985-05-10 | Reckitt & Colmann Sa | IMPROVED SUPPORT FOR CLEANING AND / OR COLORING PRODUCTS, TO BE HANGED UNDER THE EDGE OF A WC BOWL |
| 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 |
| DE3639686A1 (en) * | 1986-11-20 | 1988-05-26 | Henkel Kgaa | WC BASKET |
-
1989
- 1989-07-27 GB GB898917224A patent/GB8917224D0/en active Pending
-
1990
- 1990-07-12 EP EP90201892A patent/EP0413373B1/en not_active Expired - Lifetime
- 1990-07-12 DE DE9090201892T patent/DE69001002T2/en not_active Expired - Lifetime
- 1990-07-12 ES ES199090201892T patent/ES2041119T3/en not_active Expired - Lifetime
- 1990-07-20 AU AU59708/90A patent/AU631664B2/en not_active Expired
- 1990-07-23 CA CA002021741A patent/CA2021741A1/en not_active Abandoned
- 1990-07-25 ZA ZA905853A patent/ZA905853B/en unknown
- 1990-07-26 BR BR909003646A patent/BR9003646A/en not_active IP Right Cessation
- 1990-07-26 JP JP2198974A patent/JPH0384130A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0384130A (en) | 1991-04-09 |
| DE69001002D1 (en) | 1993-04-08 |
| AU631664B2 (en) | 1992-12-03 |
| ZA905853B (en) | 1992-03-25 |
| DE69001002T2 (en) | 1993-06-24 |
| EP0413373B1 (en) | 1993-03-03 |
| AU5970890A (en) | 1991-01-31 |
| ES2041119T3 (en) | 1993-11-01 |
| EP0413373A1 (en) | 1991-02-20 |
| BR9003646A (en) | 1991-08-27 |
| GB8917224D0 (en) | 1989-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |