EP0413373B1 - Dispensateur à libération prolongée - Google Patents

Dispensateur à libération prolongée Download PDF

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Publication number
EP0413373B1
EP0413373B1 EP90201892A EP90201892A EP0413373B1 EP 0413373 B1 EP0413373 B1 EP 0413373B1 EP 90201892 A EP90201892 A EP 90201892A EP 90201892 A EP90201892 A EP 90201892A EP 0413373 B1 EP0413373 B1 EP 0413373B1
Authority
EP
European Patent Office
Prior art keywords
container
dispensing system
fluid
opening
water
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.)
Expired - Lifetime
Application number
EP90201892A
Other languages
German (de)
English (en)
Other versions
EP0413373A1 (fr
Inventor
George Kerr Rennie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP0413373A1 publication Critical patent/EP0413373A1/fr
Application granted granted Critical
Publication of EP0413373B1 publication Critical patent/EP0413373B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the present invention relates to a dispenser. More in particular, it relates to a delayed release dispensing system for delivering 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.
  • Cistern dosing devices are known.
  • EP-168 075 discloses a passive dosing dispenser for immersion in a still body of water as found in a toilet cistern. The body of water is intermittently replaced. This complex device is particularly adapted to dispense chemicals into a body of water when immersed in the water for an extended period of time.
  • Lavatory rim block dispensing devices are also known, in the art. They may, for instance, comprise a cage-like container with holds and a hook for mounting inside the toilet bowl. Inside the container there is a solid block of sparingly soluble cleansing agent, which is continuously delivered to the flush water for the duration of the flush.
  • the European patent application EP-92,283 (Unilever) describes a cage-like toilet bowl dispenser which is equipped with a siphon system in order to achieve a time delay during the flush cycle.
  • a dispenser functions satisfactorily in that some of the dissolved chemical is delivered at the end of the flush, the efficiency is still low.
  • drip stains are sometimes observed and the cost of manufacturing is high due to the complexity of the siphon system.
  • the international patent application WO-83/01974 discloses a liquid dispensing system for connecting to a flush-water pipe, comprising a connecting pipe and a casing having therein a chamber a float-operated valve, whereby a predetermined amount of a liquid product is dispensed into the chamber when the chamber is flooded with flush water.
  • the delayed release dispensing system of the present invention which comprises a substantially closed container for holding the chemical product and fastening means for mounting the container, said container having an opening both for receiving the steam of a fluid, such as water, and for allowing it to flow out again after a delay, said system being free of any moving parts.
  • 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 of the fluid has ceased.
  • 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 filled with the fluid.
  • the opening in the container for letting the fluid in and out is non-wetting to the fluid to reduce dripping.
  • the openings may have a hydrophobic finish to reduce dripping.
  • the entire container may be made from an hydrophobic material or an hydrophobic insert may be introduced in the openings. Suitable materials for these purposes include for instance poly tetra-fluoro ethylene (teflon) and silicone resins.
  • the dispensing system according to the invention may be used as a toilet bowl dispensing system.
  • the fluid is water and there are provided fastening means to mount the container inside a toilet bowl. It is preferred when there are also provided means to lock the dispensing system in place under the rim of the toilet bowl.
  • a pin may be provided which fits into a hole under the rim.
  • 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 industrial ware washing machines.
  • the dispenser comprises a deflector funnel to direct the water to the opening in the container.
  • the dispensing system may be attached to the end of pipes and taps.
  • it comprises a suitable clamping device and a deflector to direct the fluid into the container.
  • 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.
  • a block of a sparingly soluble chemical 3 suitable for cleaning and sanitizing a toilet bowl.
  • Such blocks are known in the art.
  • the container 1 possesses a hole 4 allowing the flush water which may be taken from 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.
  • 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.
  • a sump 7 is formed because the opening 4 is situated above the lowest point of the container 1. A small volume of water is retained in this sump, dissolving some of the chemical to form a solution ready for the next flush.
  • FIG 2 a schematical 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.
  • FIG. 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 shower 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.
  • the fastening means 12 for mounting the container the device is positioned inside the machine to receive water from the shower head.
  • the container has an opening 14 allowing the spray water caught in the 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.
  • 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 dissolve some of the chemical for the next spraying cycle.
  • FIG. 4 shows a dispensing system according to the invention for 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 of a chemical 23.
  • the device is held at the end of a pipe 21 by means of fastening means 22, such that liquid may flow through the device.
  • the container 20 has an opening 24 allowing liquid to enter until it is filled or until the back pressure stops the entry of further liquid.
  • the liquid is directed towards the opening 24 by the deflection means 25.
  • the opening 24 is positioned above the lowest point of the container such that 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 is thus used to deliver an amount of cleaning or sanitizing agent to the flush 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 said before, such blocks are known in the art.
  • the device also possesses fastening means in the form of two hooks 28 to keep it in place onto the drain of the sink.
  • the upwardly curved edge 29 of the device causes the water falling from the tap to enter the container via hole 30.
  • the pressure of the water flow into the container 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 30 onto the edge 29.
  • This edge comprises a number of small holes 31 which allow the water to flow down the drain of the sink into the tank, where it is kept until the toilet is flushed again.

Landscapes

  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)

Claims (9)

  1. Système distributeur destiné à fournir certaines quantités d'un produit chimique à un courant discontinu d'un fluide, comportant un récipient (1) sensiblement fermé destiné à contenir le produit chimique (3) et des moyens (2) de fixation destinés à maintenir en place le récipient, ledit récipient ayant une ouverture (4) destinée à la fois à recevoir le courant d'un fluide et à lui permettre de s'écouler en ressortant après un retardement , caractérisé en ce qu'il possède des moyens (5) pour diriger le courant de fluide vers l'ouverture ménagée dans le récipient, ledit système étant exempt de quelques pièces mobiles que ce soit.
  2. Système distributeur conforme à la Revendication 1, dans lequel l'ouverture (4) est placée au-dessus du point le plus bas du récipient, de manière qu'une certaine quantité du fluide soit retenue à l'intérieur du récipient après que le courant de fluide a cessé.
  3. Système distributeur conforme aux Revendications 1 - 2, grâce auquel sont ménagées une ou plusieurs autres ouvertures (6) dans la partie supérieure du récipient pour égaliser la pression d'air à l'intérieur et à l'extérieur du récipient lorsque ce récipient est en train d'être rempli de fluide.
  4. Système distributeur conforme aux revendications 1 - 3, grâce auquel l'ouverture (4) ménagée dans le récipient n'est pas susceptible d'être mouillée par le fluide de façon à réduire l'égouttement.
  5. Système distributeur conforme à la revendication 4, grâce auquel l'ouverture (4) ménagée dans le récipient présente un fini hydrophobe de façon à réduire l'égouttement d'un fluide aqueux.
  6. Système distributeur conforme aux Revendications 1 - 5 destiné à être utilisé à l'intérieur d'une cuvette de water-closet, comportant des moyens de fixation destinés à installer le récipient à l'intérieur d'une cuvette de water-closet.
  7. Système distributeur conforme à la Revendication 6, comportant en outre des moyens de verrouiller le système en place sous le rebord de la cuvette de water-closet.
  8. Système distributeur conforme aux Revendications 1 - 5 destiné à être utilisé dans des machines de nettoyage par pulvérisation, comportant un entonnoir formant déflecteur (15) pour diriger l'eau vers l'ouverture (14) ménagée dans le récipient (10).
  9. Système distributeur conforme aux revendications 1 - 5 destiné à être utilisé sur l'extrémité de tuyaux et de robinets, comportant un dispositif approprié (22) de serrage et un déflecteur (25) pour diriger le fluide vers l'ouverture (24) ménagée dans le récipient (20).
EP90201892A 1989-07-27 1990-07-12 Dispensateur à libération prolongée Expired - Lifetime EP0413373B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898917224A GB8917224D0 (en) 1989-07-27 1989-07-27 Dispensing system
GB8917224 1989-07-27

Publications (2)

Publication Number Publication Date
EP0413373A1 EP0413373A1 (fr) 1991-02-20
EP0413373B1 true EP0413373B1 (fr) 1993-03-03

Family

ID=10660740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90201892A Expired - Lifetime EP0413373B1 (fr) 1989-07-27 1990-07-12 Dispensateur à libération prolongée

Country Status (9)

Country Link
EP (1) EP0413373B1 (fr)
JP (1) JPH0384130A (fr)
AU (1) AU631664B2 (fr)
BR (1) BR9003646A (fr)
CA (1) CA2021741A1 (fr)
DE (1) DE69001002T2 (fr)
ES (1) ES2041119T3 (fr)
GB (1) GB8917224D0 (fr)
ZA (1) ZA905853B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US10549245B2 (en) 2014-08-05 2020-02-04 Ecolab Usa Inc. Apparatus and method for dispensing solutions from solid products
US11278922B2 (en) 2018-02-13 2022-03-22 Ecolab Usa Inc. Portable solid product dispenser

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1016052C2 (nl) * 2000-08-30 2002-03-01 Robert Marc Fifield Werkwijze voor het vrijgeven van een actief bestanddeel.
NL1016645C2 (nl) * 2000-11-17 2002-05-22 Sara Lee De Nv Inrichting met een toiletverzorgende werking.
US20050014668A1 (en) * 2001-11-13 2005-01-20 Mathieu Bariou Containers
CN102308569B (zh) 2009-12-07 2014-11-12 松下电器产业株式会社 摄像装置以及其控制方法
CN102804751B (zh) 2011-01-31 2016-08-03 松下电器产业株式会社 图像恢复装置、摄像装置以及图像恢复方法
US8890996B2 (en) 2012-05-17 2014-11-18 Panasonic Corporation Imaging device, semiconductor integrated circuit and imaging method
DE112015003368A5 (de) 2014-07-21 2017-04-06 Mohammad Reza Amiri Vorrichtung zur Anordnung in einem Toilettenbecken zur Abgabe einer Substanz beim Spülvorgang in das Spülwasser einer Toilettenspülung und Toilettenbecken mit einer derartigen Vorrichtung
DE102014010620A1 (de) * 2014-07-21 2016-01-21 Mohammad Reza Amiri Vorrichtung zur Anordnung in einem Toilettenbecken zur Abgabe einer Substanz beim Spülvorgang in das Spülwasser einer Toilettenspülung und Toilettenbecken mit einer derartigen Vorrichtung
JP6437264B2 (ja) * 2014-09-30 2018-12-12 アース製薬株式会社 芳香洗浄用容器
JP2020105798A (ja) * 2018-12-27 2020-07-09 小林製薬株式会社 薬剤供給具
JP2020105797A (ja) * 2018-12-27 2020-07-09 小林製薬株式会社 薬剤供給具

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0168075A1 (fr) * 1984-06-08 1986-01-15 The Procter & Gamble Company Distributeur-doseur passif utilisant une bulle de gaz captive créée internement pour obtenir l'isolement du produit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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 (fr) * 1982-08-26 1985-05-10 Reckitt & Colmann Sa Support perfectionne pour produits nettoyants et/ou colorants, destine a etre accroche sous le rebord d'une cuvette de wc
DE3639686A1 (de) * 1986-11-20 1988-05-26 Henkel Kgaa Wc-koerbchen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0168075A1 (fr) * 1984-06-08 1986-01-15 The Procter & Gamble Company Distributeur-doseur passif utilisant une bulle de gaz captive créée internement pour obtenir l'isolement du produit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US10549245B2 (en) 2014-08-05 2020-02-04 Ecolab Usa Inc. Apparatus and method for dispensing solutions from solid products
US11278922B2 (en) 2018-02-13 2022-03-22 Ecolab Usa Inc. Portable solid product dispenser
US11931759B2 (en) 2018-02-13 2024-03-19 Ecolab Usa Inc. Portable solid product dispenser

Also Published As

Publication number Publication date
ES2041119T3 (es) 1993-11-01
DE69001002T2 (de) 1993-06-24
DE69001002D1 (de) 1993-04-08
AU5970890A (en) 1991-01-31
JPH0384130A (ja) 1991-04-09
GB8917224D0 (en) 1989-09-13
BR9003646A (pt) 1991-08-27
ZA905853B (en) 1992-03-25
CA2021741A1 (fr) 1991-01-28
EP0413373A1 (fr) 1991-02-20
AU631664B2 (en) 1992-12-03

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