EP0096698A1 - Improved treatment liquid dispenser for water closets. - Google Patents

Improved treatment liquid dispenser for water closets.

Info

Publication number
EP0096698A1
EP0096698A1 EP83900196A EP83900196A EP0096698A1 EP 0096698 A1 EP0096698 A1 EP 0096698A1 EP 83900196 A EP83900196 A EP 83900196A EP 83900196 A EP83900196 A EP 83900196A EP 0096698 A1 EP0096698 A1 EP 0096698A1
Authority
EP
European Patent Office
Prior art keywords
chamber
water
dispenser
treatment liquid
flushing
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
Application number
EP83900196A
Other languages
German (de)
French (fr)
Other versions
EP0096698B1 (en
Inventor
Bruno Lotti
Roberto Riggio
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.)
Wellcome Foundation Ltd
Original Assignee
Wellcome Foundation Ltd
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 Wellcome Foundation Ltd filed Critical Wellcome Foundation Ltd
Publication of EP0096698A1 publication Critical patent/EP0096698A1/en
Application granted granted Critical
Publication of EP0096698B1 publication Critical patent/EP0096698B1/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/02Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
    • E03D9/03Devices 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
    • E03D9/031Devices connected to or dispensing into the flushing pipe
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/04Special arrangement or operation of ventilating devices

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)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)

Abstract

Le dispositif comprend un boîtier (1) dans lequel se trouve le distributeur de liquide de traitement (7), agissant de concert avec une chambre (3) laquelle est envahie par l'écoulement d'eau de chasse. Au début de la chasse, la chambre (3) est inondée, une quantité mesurée de liquide de traitement est distribuée, et à la fin de la chasse, l'eau remplissant la chambre et contenant la quantité mesurée de liquide de traitement est chassée dans le tuyau de chasse (9). L'invention concerne également un procédé permettant l'administration d'une quantité prédéterminée de liquide de traitement dans un cabinet de toilette à l'aide d'un tel dispositif. Ce dispositif permet de laisser un cabinet de toilette bactériologiquement "propre" à l'usager suivant.The device comprises a housing (1) in which the treatment liquid distributor (7) is located, acting in concert with a chamber (3) which is invaded by the flow of flushing water. At the start of the flush, the chamber (3) is flooded, a measured quantity of treatment liquid is dispensed, and at the end of the flush, water filling the chamber and containing the measured quantity of treatment liquid is flushed into the flush pipe (9). The invention also relates to a method for administering a predetermined quantity of treatment liquid in a toilet using such a device. This device allows you to leave a bacteriologically “clean” toilet room for the next user.

Description

"Improved treatment liquid dispenser for water closets"
This invention concerns a metering dispenser of treatment liquid in water closets, and more particularly this invention concerns a device for the delivery of a determined amount of a bacteriostatic liquid agent at the time of flushing in such a way as to leave, after each operation, a bacteriologically "clean" unit for - the next user.
The device according to the invention can advantageously be combined with a device delivering environmental deodorant by means of indirect positive activation with each operation.
According to this invention a device is foreseen associated with a dynamic liquid injector in a water-flush falling column associated with a valve device which allows the withdrawal, from time to time, of an amount of water precisely metered at the time of flushing by putting the said amount of water in communication with a liquid-liquid exchanger associated with a feed supplier from a container containing a bacteriostatic liquid or other treatment liquid.
The container, valve device and bottle of bacteriostatic liquid or other treatment liquid is designed in such a way that the movement of water into if induces an aspiration action such that a supplier of environmental deodorant is activated, the deodorant being impregnated onto felt or similar material able to contain a volatile liquid or solid.
According to one aspect one of the present invention there is provided a dispensing device for administering a predetermined amount of treatment liquid into water closets, comprising a casing within which is a container-dispenser, co-operating with a chamber containing a float-operated valve, the container-dispenser being adapted to dispense a pre-determined amount of treatment liquid into the chamber when the chamber is flooded by a flow of flushing water, the a mount of flushing water being controlled by the float operated valve. In addition, a hydrodynamic unit may be provided in the flushing water pipe which is adapted to supply flooding to the said chambers.
According to a further aspect of the invention there is provided a method for administering a liquid to water closets which comprises dispensing the liquid from a device which consists of a casing within which is a treatment-liquid dispenser which co-operates with a chamber containing a float operated valve, the components of the device being arranged such that, at the beginning of a flushing cycle, flushing water floods the chamber to a level determined by the position of the float operated valve, the influx of flooding water releasing a predetermined amount of the treatment liquid from the dispenser into the chamber, which is expelled from the device along with the flushing water into the water closet, at the end of the flushing cycle.
In either of the aforementioned embodiments of the present invention, the chamber may be partitioned into a first and a second chamber, said first chamber containing the float -operated valve, and said second chamber co-operating with the container-dispenser, the arrangement of the chambers being such that flooding water may pass freely between the two chambers.
In a yet further aspect of the present invention, there is provided a method for administering a metered amount of deodorant into the atmosphere which comprises a dispensing device as hereinbefore defined, an aperture fitted to the casing of the device, and an enviromental deodorant dispenser impregnated with a volatile liquid or solid, the components being arranged such that during a flushing cycle, air is displaced through said aperture and a metered amount of deodorant is expelled into the atmosphere.
This invention will now be described by reference to one of its forms of embodiment currently prefεred, this being illustrative and not limiting, and based on the appended design diagrams in which:
Figures 1,2 and 3 show schematically in perspective, lateral and plan views respectively, the design of a device according to this invention. Figure 4 shows an even more schematic view of the device according to the Invention in the resting position. Figure 5 shows, in succession to Figure 4, a view of the device according to the invention in the refilling phase during a flushing operation.
Figure 6 shows a view aπalagous to that of Figure 5 in the phase of inflow of bacteriostatic liquid or other treatment liquid, and
Figure 7 shows, similarly to Figure 6, the discharge phase of the device according to the invention.
With reference to Figures 1 to 3, according to the invention the device comprises a casing 1 containing a tank 2 of treatment liquid, particularly a bacteriostatic liquid, an aspiration chamber 3 the flooding of which is controlled by a valve 4 associated with a float 5, and an exchange or dilution chamber 6 fed from tank 2 via a metering dispenser valve- 7. The side of valve 4 turned towards the outside is connected by pipe 8 to the water flush falling column 9, which is forced through conduit 8 by means of a hydrodynamic dispenser device symbolized by the element 10.
Corresponding to the external part turned towards the outside of casing 1 is conveniently arranged a dispenser of enviromental deodorant 11 of the type comprising a felt unit or other similar material which dispenses a deodorant in accordance with the aspiration action induced by the displacement of liquid in chambers 3 and 6.
With reference to Figures 4-7, the functioning of the device according to this invention will now be described.
As shown in Figure 4, in the resting position the valve 4 is disposed against the seal present at the end of pipe 8, and the device is ready for operation.
With a flushing operation the tube 9 is traversed by a column of moving water, part of which is captured by element 10 of the hydrodynamic dispenser and is sent through pipe 8 so as to refill chamber 3 and raise the float 5 until the valve 4 blocks the subsequent flow of water by sealing against seating 4a. The water which reaches the aspiration chamber 3 passes through a passage (not illustrated) to reach the exchange or dilution chamber 6.
O In chamber 6 is found the dispenser-metering valve associated with tank 2 of the treatment or bacteriostatic liquid, made as described in the US Patent 2,839,763 issued on 24th June 1958 in the name of W.CNewson and entitled "Dispenser for flush tank deodorant bottle". The functioning and structure of the dispenser-metering valve shown in 7 is clearly described in detail in this US Patent publication, and a detailed description is not considered necessary here. It is enough to say that, with a siphon action movement, for each immersion of valve 7 a determined amount of bacteriostatic or other treatment liquid is delivered. The dispensing phase on the part of valve 7 is shown in Figure 6.
In Figure 7 is shown the end of the dispensing operation. In this phase the predominance of the water column traversing pipe 9 is in the final phase and there is no longer a hydraulic counter-pressure forcing valve 4 against seating 4a1 and prohibiting the passage of water into chamber 3. Consequently, the predominance of the added treatment of bacteriostatic agent liquid present in chambers 3 and 6 prevails over the thrust of water in tube 9 and reaches the water closet unit.
It will be seen that concurrently with the actions described above there will be a displacement of air within the casing 1, whereby the deodorant dispenser element shown in Figure 1 will be subjected to a current of air which consequently releases a deodorant agent into the enviroment.
It will be seen that the solution according to this invention is particularly advantageous in that a calibrated dispensation of treatment agent, particularly a bacteriostatic agent, is produced without the use of external motor force save the almost gratuitous force supplied by the column of flushing water.
As an example, considering that container 2 can suitably be produced with a capacity of 600 ml and with a dispensation through metering valve 7 of 0.5 ml per flush, this content will suffice for 1200 flushes. Considering a mean use of 18 flushes per day, an operational time of 76 days or 9.2 weeks can be attained. With a mean of 20 flushes per day, the operational time will be about 8.5 weeks.
It should be noted that with the device according to the invention, since the dispensing of treatment liquid is made at the end of the flushing, the concentration of treatment liquid remaining in the stagnant water of the water closet will be much higher than that obtained in similar devices with dilution in the entire mass of flushing water.
This invention has been described by reference to one of its form of production as preferred at present, but it will be understood that in practice it is possible to introduce variants and modifications without exceeding the scope of protection of this present industrial patent.

Claims

1. A method for administering a liquid to water closets which comprises dispensing the liquid from a device which consists of a casing within which is a treatment liquid container-dispenser which cooperates with a chamber containing a float operated valve, the components of the device being arranged such that, at the beginning of a flushing cycle, flushing water floods the chamber to a level determined by the position of the float- operated valve, the influx of flooding water releasing a pre-determined amount of the treatment liquid from the dispenser into the chamber, which is expelled from the device along with the flushing water into the water closet, at the end of the flushing cycle.
2. A method for administering a liquid to water closets as defined in claim 1, wherein the chamber is partitioned into a first and a second chamber, said first chamber containing the float operated valve and said second chamber co-operating with the container-dispenser, the arrangement of the chambers being such that flooding water may pass freely between the two chambers.
3. A dispensing device for administering a pre-determined amount of treatment liquid into water closets, comprising a casing within which is a container-dispenser, co-operating with a chamber containing a float-operated valve, the container dispenser being adapted to disperse a predetermined amount of treatment liquid into the chamber when the chamber is flooded by a flow of flushing water the amount of flushing water being controlled by the float operated valve.
4. A dispensing device as claimed in claim 3, wherein the chamber is partitioned into a first and a second chamber, said first chamber containing the float-operated valve, and said second chamber co-operating with the container-dispenser, the arrangement of chambers being such that flooding water may pass freely between the two chambers.
5. A dispensing device as claimed in either of claims 3 or 4 which comprises, in addition, a hydrodynamic unit provided in the flushing -water pipe which is adapted to supply flooding water to said chambers.
6. A method for administering a metered amount of deodorant into the atmosphere, which comprises a dispensing device as claimed in any of claims 3,4 or 5, an aperture fitted to the casing, and an enviromental deodorant dispenser impregnated with a volatile liquid or solid, the components being arranged such that during a flushing cycle air is displaced through said aperture, and a metered amount of deodorant is expelled into the atmosphere.
7. A dispensing device for treatment liquid for water closets according to one or more of the foregoing claims and substantially as illustrated and described by reference to the appended diagrams.
OMP
EP83900196A 1981-12-04 1982-12-03 Improved treatment liquid dispenser for water closets Expired EP0096698B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT4984781 1981-12-04
IT49847/81A IT1172134B (en) 1981-12-04 1981-12-04 IMPROVEMENT IN TREATMENT LIQUID DOSERS FOR SANITARY AND SANITARY INSTALLATIONS

Publications (2)

Publication Number Publication Date
EP0096698A1 true EP0096698A1 (en) 1983-12-28
EP0096698B1 EP0096698B1 (en) 1986-04-09

Family

ID=11271703

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83900196A Expired EP0096698B1 (en) 1981-12-04 1982-12-03 Improved treatment liquid dispenser for water closets

Country Status (8)

Country Link
EP (1) EP0096698B1 (en)
CH (1) CH664993A5 (en)
GB (1) GB2123047B (en)
HK (1) HK23787A (en)
IT (1) IT1172134B (en)
MY (1) MY8700252A (en)
NL (1) NL8220484A (en)
WO (1) WO1983001974A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8032953B2 (en) 2003-06-16 2011-10-11 Jeyes Group Limited Liquid dispensing device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600691A1 (en) * 1986-06-27 1987-12-31 Wackermann Guy Apparatus for automatically dispensing a disinfecting solution into the flow of a sanitary receiving element or the like
FR2647484B1 (en) * 1989-05-26 1991-09-13 Nigiko Sa PERFECTED SANITIZER
GB2259850B (en) * 1991-09-24 1995-05-31 Calfarme An urinal cleaning agent supply apparatus
IT1255578B (en) * 1992-07-14 1995-11-09 ELECTRONIC GROUP FOR THE CONTROLLED DISPENSING OF DISINFECTANT AND SIMILAR LIQUIDS IN TOILETS IN GENERAL.
SG46303A1 (en) * 1994-08-01 1998-02-20 Geopat Products Pte Ltd Programmable dispensor
ID19143A (en) * 1996-12-14 1998-06-18 Calfarme Singapore Pte Ltd FLUID DISTRIBUTION METHODS AND VALVES
CA2447043A1 (en) 2001-05-11 2002-11-21 S.C. Johnson & Son, Inc. Down-stroke dispenser

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545755A (en) * 1945-08-31 1951-03-20 Calmic Inc Apparatus for deodorizing the atmosphere
US2682059A (en) * 1950-05-12 1954-06-29 Grossmann Joseph Liquid adding apparatus for the disinfection of water closets, urinals, and other similar places
US2839763A (en) * 1955-08-15 1958-06-24 William G Newsom Dispenser for flush tank deodorant bottle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8301974A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8032953B2 (en) 2003-06-16 2011-10-11 Jeyes Group Limited Liquid dispensing device

Also Published As

Publication number Publication date
GB8318718D0 (en) 1983-08-10
IT8149847A0 (en) 1981-12-04
CH664993A5 (en) 1988-04-15
MY8700252A (en) 1987-12-31
HK23787A (en) 1987-03-27
EP0096698B1 (en) 1986-04-09
GB2123047B (en) 1985-11-20
IT1172134B (en) 1987-06-18
NL8220484A (en) 1983-11-01
WO1983001974A1 (en) 1983-06-09
GB2123047A (en) 1984-01-25

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