AU711453B2 - Cleaning and freshening unit intended for suspension from a rim of a toilet bowl - Google Patents

Cleaning and freshening unit intended for suspension from a rim of a toilet bowl Download PDF

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Publication number
AU711453B2
AU711453B2 AU74007/96A AU7400796A AU711453B2 AU 711453 B2 AU711453 B2 AU 711453B2 AU 74007/96 A AU74007/96 A AU 74007/96A AU 7400796 A AU7400796 A AU 7400796A AU 711453 B2 AU711453 B2 AU 711453B2
Authority
AU
Australia
Prior art keywords
liquid
cleaning
holder
bottle
opening
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
Application number
AU74007/96A
Other versions
AU7400796A (en
AU711453C (en
Inventor
Carolus Benedictus Wilhelmus Lampe
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.)
Procter and Gamble Co
Original Assignee
Sara Lee DE 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19761900&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU711453(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sara Lee DE NV filed Critical Sara Lee DE NV
Publication of AU7400796A publication Critical patent/AU7400796A/en
Publication of AU711453B2 publication Critical patent/AU711453B2/en
Application granted granted Critical
Publication of AU711453C publication Critical patent/AU711453C/en
Assigned to PROCTER & GAMBLE COMPANY, THE reassignment PROCTER & GAMBLE COMPANY, THE Alteration of Name(s) in Register under S187 Assignors: SARA LEE/DE N.V.
Anticipated expiration legal-status Critical
Expired legal-status Critical Current

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
    • E03D9/032—Devices connected to or dispensing into the bowl

Abstract

A cleaning and freshening unit (1) provided with a holder (2) and a liquid reservoir (4) detachably connected to the holder (2), the unit being provided with means (5) for suspension from a rim of a toilet bowl, the unit (1) also being provided with a porous, liquid-absorbing mass (6) which always communicates with liquid (F) contained in the liquid reservoir (4), the holder (2) being provided with a connecting nipple (7) suitable for connection to a discharge opening (8) of the bottle (3), the discharge opening (8) of the bottle (3) when connected being partly closed by a closing wall (9) provided with at least one liquid passage opening (10) which opens into an inlet (11<a>) of a channel (11) abutting with an outlet (11<b>) having a limited surface against the porous mass (6), and provided with at least one air supply opening (12) communicating with the ambient pressure, the sizes of the liquid passage opening (10) and the air supply opening (12) being such that the liquid pressure on the porous mass (6) is always equal and independent of the liquid level in the liquid reservoir (4). <IMAGE>

Description

AUSTRALIA
PATENTS ACT 1990 COMPLETE SPECIFICATION NAME OF APPLICANT(S): Sara Lee/DE N.V.
ADDRESS FOR SERVICE: DAVIES COLLISON CAVE Patent Attorneys 1 Little Collins Street, Melbourne, 3000.
INVENTION TITLE: Cleaning and freshening unit intended for suspension from a rim of a toilet bowl The following statement is a full description of this invention, including the best method of performing it known to me/us:-
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V V The invention relates to a cleaning and freshening unit according to the preamble of claim 1.
Such a unit is known from European patent application EP-A-0 538 957. A drawback of the known cleaning and freshening unit is that as the liquid level in the liquid reservoir falls it dispenses less liquid to the porous mass per unit of time. As a result thereof, the freshening action of the unit will decrease as the liquid level in the bottle falls.
Another drawback of the known device is that the bottle communicates with the ambient air only via the porous mass. Therefore, the ambient air can only flow into the bottle with difficulty, so that there is a risk of reduced pressure being formed in the bottle which substantially limits the draining of the bottle. This effect, too, leads to a reduced release of liquid per unit of time as the liquid level in the bottle falls.
The object of the invention is to provide a cleaning and freshening unit of the type mentioned in the opening paragraph which does not have the above-mentioned drawbacks.
To this end, the cleaning and freshening unit is characterized by the steps defined in the characterizing *go•part of claim 1.
•eoAs a result of the suitably selected sizes of the at least one liquid passage opening and the at least one air *supply opening it is achieved that the liquid pressure on the porous mass is always substantially equal and independent of the liquid level in the liquid reservoir. In general, the liquid passage openings will have larger sizes S 30 than the air supply openings. The air supply openings must be so small that as a result of the viscosity and the surface tension of the liquid therethrough, at least under normal conditions, no liquid discharges.
The liquid pressure on the porous mass always being substantially equal and independent of the liquid level in the liquid reservoir, a constant saturation of the porous material will be effected during the whole service life of the bottle. Consequently, the drawbacks of the known unit have been removed with the cleaning and freshening unit according to the invention.
As a result of temperature fluctuations the pressure in the liquid reservoir can rise above the atmospheric pressure. Thus, there is the possibility of liquid being forced outwards and flowing away via the air supply openings. Once this effect has occurred, the flow can be maintained under certain conditions as a result of capillary action. This may lead to draining of the bottle within a short time.
In order to prevent this effect, the cleaning and freshening unit is characterized according to a further elaboration by the steps of claim 2. The chamber must of course be of such construction that liquid flowing in the chamber is not drawn away by capillary action, at least can only via the porous mass leave the chamber or be drawn back into the bottle.
According to a further elaboration on the invention the cleaning and freshening unit is characterized by the steps of claim 3.
~The volume of the chamber being so large that the volume variations occurring as a result of temperature fluctuations of air contained in the liquid reservoir can be taken up herein, it is achieved that liquid will never flow out of the chamber via the ventilation openings.
.Further elaborations on the invention are described in the subclaims and will be explained in more detail by g :means of two examples of embodiment, with reference to the accompanying drawings in which Fig. 1 is a cross-sectional view of an example of embodiment of a cleaning and freshening unit taken along the S"line I-I of Fig. 2; Fig. 2 is a cross-sectional view taken along the line II-II of Fig. 1; Fig. 3 shows the separate bottle forming part of the cleaning and freshening unit in closed condition; and Fig. 4 shows a cleaning and freshening unit having a chamber provided with a bottom.
The cleaning and freshening unit 1 shown is provided with a holder 2 and a bottle 3 detachably connected to the holder 2 and comprising a liquid reservoir 4. The unit 1 is provided with suspension means 5 for suspending the unit 1 from a rim of a toilet bowl not shown. The unit is also provided with a porous liquid-absorbing mass 6 which always communicates with liquid F contained in the liquid reservoir 4. The porous mass 6 is arranged in the holder 2 so as to be located in a path of the flushing water when the unit 1 is suspended from the rim of the toilet bowl. The porous mass 6 may be, a sponge or a plate of sintered porous material.
The holder 2 is provided with a connecting nipple 7 suitable for connection to a discharge opening 8 of the bottle 3, so that when the unit 1 is suspended from the rim of the toilet bowl the discharge opening 8 is directed downwards. Of course, the bottle 3 is of such construction V. that the discharge opening 8 is located at the lowermost 0.o 25 point of the bottle 3, so that all liquid F can flow from the liquid reservoir 4 outwards via the discharge opening 8.
According to the invention the discharge opening 8 of the bottle 3 when connected to the connecting nipple 7 is partly closed by a closing wall 9 provided with at least one liquid passage opening 10 which opens into an inlet lla of a channel 11 abutting with an outlet llb having a limited surface against the porous mass 6, and provided with at least one air supply opening communicating with the ambient pressure. The sizes of the at least one liquid passage 35 opening 10 and the at least one air supply opening are so adjusted to each other and to the viscosity of the liquid F contained in the liquid reservoir 4 that the liquid pressure on the porous mass 6 is always substantially equal and independent of the liquid level in the liquid reservoir 4.
In the present example of embodiment the air supply openings 12 communicate with the ambient pressure via a chamber 13 provided on the side facing upwards with at least one ventilating opening 14. Preferably, the volume of the chamber 13 is such that it can take up at least the volume variations occurring as a result of temperature fluctuations in air contained in the liquid reservoir 4. Thus, liquid is prevented from flowing outwards and being lost owing to a rise in the pressure in the liquid reservoir 4. Moreover, the liquid reservoir 4 is prevented from continuing to drain as a result of capillary action, so that the liquid reservoir 4 would be empty within a short time. The ventilation openings 14 are preferably located at a higher level than the air supply openings 12. When the air pressure in the liquid reservoir 4 falls, a portion of the liquid contained in the chamber 13 is drawn back again into the liquid reservoir 4. This drawing back will continue until the liquid level in the chamber has fallen so much that there is again a direct air communication between the ventilation opening 14 and the air supply openings 12.
As clearly shown in Figs. 1 and 2, the holder 2 is made of a first moulded piece of which the suspension means 5 form part as well. In Figs. 1 and 2 it is moreover clearly visible that the connecting nipple 7, the closing wall 9, *oo .the at least one liquid passage opening 10, the at least one air supply opening 12, the channel 11, and the walls bounding the chamber 13 form part of a second moulded piece detachably connected to the first moulded piece via a snap connection 16. The porous mass 6 is fixed between the first moulded piece and the second moulded piece. In the present o• example of embodiment the porous mass is a plate-shaped element of sintered material.
35 As is clearly shown in Fig. 3, the discharge opening 8 of the bottle 3 is closed by a closing cap 17 provided with a first cap portion 17a and a second cap portion 17b.
The second cap portion 17b is of such construction that when the bottle is placed on the holder 2 this second cap portion is pressed by a projection 18 provided on the holder 2 into the liquid reservoir 4, so that the bottle 3 is opened and the discharge opening 8 is formed. Thus, it is achieved that when the bottle 3 is placed in the holder 2 the bottle is opened simultaneously. The second cap portion 17b preferably has a specific mass smaller than that of the liquid F, so that it begins to float. It is self-evident that the bottle 3 with the liquid F contained therein will be separately available. The bottle 3 and the holder 2 are provided with projections 19 and grooves 20 which cooperate with each other in a manner such that the bottle 3 can be snapped on the holder 2. Moreover, the holder 2 is provided with a u 15 number of slots 21 which increase the access of flushing eooo o: water to the porous mass 6 and, moreover, give the ambient air free passage to the porous mass 6, which enhances the evaporation of the volatile substances in the liquid and the spreading of the substances. In a flushing operation a 20 portion of the active liquid F contained in the porous mass 6 will enter the flushing water and performing its cleaning action therein, while after the flushing operation a portion of the active substance evaporates from the porous mass 6 and effects the freshening action on the surroundings.
25 It is clear that the invention is not limited to the S"example of embodiment shown but that various modifications are possible within the scope of the invention. Thus, for instance, the shape of the holder may be different and may, as shown in in Fig. 4, be provided with a bottom 22, which further reduces the risk of flowing away of the liquid F.
Moreover, it is possible that the bottle 3 is provided with another type of cap which must be removed before placing the bottle 3 in the holder 2.

Claims (2)

1. A cleaning and freshening unit provided with a holder and a bottle detachably connected to the holder and including a liquid reservoir, said unit being provided with suspension means for suspending the unit from a rim of a toilet bowl, said unit also being provided with a porous, liquid-absorbing mass which always communicates with liquid contained in the liquid reservoir, said porous mass being arranged in the holder so as to be located in a path of the flushing water when the unit is suspended from the rim of the toilet bowl, said holder being provided with a connecting nipple suitable 49 for connection to a discharge opening of the bottle, so that when the unit is suspended from the rim of the toilet bowl the ooo 15 discharge opening is directed downwards, characterised in that the discharge opening of the bottle when connected is partly closed by a closing wall provided with at least one liquid passage opening which opens into an inlet of a channel abutting with an outlet having a limited surface against the S 20 porous mass, and provided with at least one air supply opening
99.. communicating with the ambient pressure, the sizes of the at least one liquid passage opening and the at least one air supply opening being so adjusted to each other and to the viscosity of the liquid contained in the liquid reservoir that 25 the liquid pressure on the porous mass is always substantially equal and independent of the liquid level in the liquid reservoir. 2. A cleaning and freshening unit according to claim 1, characterised in that the air supply openings communicate with the ambient pressure via a chamber provided on a side facing upwards with at least one ventilating opening. 3. A cleaning and freshening unit according to claim 2, characterised in that the volume of the chamber is such that at least the volume variations occurring as a result of Stemperature fluctuations in air contained in the liquid Q\OPER\GCP\74007.SPE 11/8/99 7 reservoir can be taken up herein. 4. A cleaning and freshening unit according to any of the preceding claims, characterised in that the holder is made of a first moulded piece of which the suspension means form part as well. A cleaning and freshening unit according to at least claims 2 and 4, characterised in that the connecting nipple, the closing wall, the at least one liquid passage opening, the at least one air supply opening, the channel, and the walls bounding the chamber form part of a second moulded piece detachably connected to the first moulded piece via a snap connection. 6. A cleaning and freshening unit according to claim characterised in that the porous mass is fixed between the first and the second moulded piece. S 20 7. A cleaning and freshening unit according to any of the preceding claims, characterised in that the discharge opening I: of the bottle is closed by a closing cap provided with a first cap portion and a second cap portion, said second cap portion being of such construction that when the bottle is placed on 25 the holder said second cap portion is pressed by a projection provided on the holder into the liquid reservoir, so that the bottle is opened and the discharge opening is formed. 8. A cleaning and freshening unit substantially as hereinbefore described with reference to the drawings. DATED this 11th day of August, 1999 SARA LEE/DE N.V. By its Patent Attorneys DAVIES COLLISON CAVE
AU74007/96A 1995-11-22 1996-11-21 Cleaning and freshening unit intended for suspension from a rim of a toilet bowl Expired AU711453C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1001722A NL1001722C2 (en) 1995-11-22 1995-11-22 Cleaning and refreshing unit intended to be hung on a toilet bowl rim.
NL1001722 1995-11-22

Publications (3)

Publication Number Publication Date
AU7400796A AU7400796A (en) 1997-05-29
AU711453B2 true AU711453B2 (en) 1999-10-14
AU711453C AU711453C (en) 2004-01-08

Family

ID=19761900

Family Applications (1)

Application Number Title Priority Date Filing Date
AU74007/96A Expired AU711453C (en) 1995-11-22 1996-11-21 Cleaning and freshening unit intended for suspension from a rim of a toilet bowl

Country Status (11)

Country Link
EP (1) EP0785315B1 (en)
AT (1) ATE194186T1 (en)
AU (1) AU711453C (en)
DE (2) DE785315T1 (en)
ES (1) ES2142777T3 (en)
NL (1) NL1001722C2 (en)
NZ (1) NZ299791A (en)
PT (1) PT785315E (en)
SG (1) SG47196A1 (en)
TW (1) TW314563B (en)
ZA (1) ZA969755B (en)

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AU2005239634B2 (en) * 1999-11-02 2010-06-17 Broomco (4290) Limited Liquid Delivery Devices

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DE19855304A1 (en) 1998-12-01 2000-06-15 Buck Chemie Gmbh Device for delivering additives to the flushing water in toilet bowls
DE19912217C2 (en) 1999-01-12 2002-09-05 Jeyes Deutschland Gmbh Device for dispensing active substances in the flushing water, especially in toilet bowls
DE29902066U1 (en) 1999-02-08 1999-04-22 Georg Menshen Gmbh & Co Kg Device for conditioning rinsing liquid in sanitary facilities
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GB0123250D0 (en) 2001-09-27 2001-11-21 Globol Chem Uk Ltd A dispenser
DE10204928B4 (en) 2002-02-07 2004-04-01 Henkel Kgaa Dispensing device for dispensing an active fluid into the flushing liquid in a toilet bowl
WO2003095753A1 (en) 2002-05-10 2003-11-20 S. C. Johnson & Son, Inc. Toilet rim mounted liquid dispenser using vertical wicking system
GB2389123B (en) 2002-05-29 2005-08-17 Unilever Plc Rechargeable dispensing device
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DE10234781A1 (en) 2002-07-30 2004-02-19 Henkel Kgaa Dispensing device for dispensing an active fluid into the flushing liquid in a toilet bowl
IL151273A (en) 2002-08-15 2006-12-31 Sano Bruno S Entpr Ltd Toilet rim dispenser for colored liquid
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US6898806B2 (en) 2002-10-01 2005-05-31 Skot S.A. Chemical Products Device for dispensing a liquid active substance
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EP1507934B1 (en) 2003-04-25 2006-11-08 S. C. Johnson & Son, Inc. Toilet rim mounted device for dispensing two liquids
EP2106486B8 (en) 2006-12-28 2017-04-12 Henkel AG & Co. KGaA Modular system for dispensing active ingredient fluids to the flushing liquid of a toilet bowl
FR2914661B1 (en) 2007-04-03 2009-06-26 Eurvest DISTRIBUTOR OF MAINTENANCE FLUIDS WITH MULTIPLE COMPARTMENTS FOR TOILET BOWLS
DE102008037724A1 (en) 2008-08-14 2010-02-25 Henkel Ag & Co. Kgaa Cartridge for a toilet-dishwasher
FR2964672B1 (en) 2010-09-15 2014-01-10 Eurvest MAINTENANCE PRODUCT DISTRIBUTOR FOR TOILET BOWLS
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Publication number Priority date Publication date Assignee Title
AU2005239634B2 (en) * 1999-11-02 2010-06-17 Broomco (4290) Limited Liquid Delivery Devices

Also Published As

Publication number Publication date
ZA969755B (en) 1997-06-23
ES2142777T3 (en) 2000-12-01
TW314563B (en) 1997-09-01
DE69609046D1 (en) 2000-08-03
ATE194186T1 (en) 2000-07-15
DE69609046T2 (en) 2000-10-26
EP0785315B1 (en) 2000-06-28
DE785315T1 (en) 1999-05-20
AU7400796A (en) 1997-05-29
PT785315E (en) 2000-10-31
AU711453C (en) 2004-01-08
SG47196A1 (en) 1998-03-20
ES2142777T1 (en) 2000-05-01
NL1001722C2 (en) 1997-05-23
NZ299791A (en) 1998-08-26
EP0785315A1 (en) 1997-07-23

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ON Decision of a delegate or deputy of the commissioner of patents (result of patent office hearing)

Free format text: OPPOSITION UNDER SECTION 59 BY S.C. JOHNSON & SOHN, INC. ALL CLAIMS OF THE SPECIFICATION WERE FOUND TO BE NOVEL, SINCE NOT ALL THE ESSENTIAL FEATURES IDENTIFIED IN THE CLAIMS WERE PRESENT IN THE PRIOR ART DOCUMENT THAT THE OPPONENT RELIED UPON. PATENTABLE SUBJECT MATTER WAS BELIEVED TO BE PRESENT. THE APPLICANT WAS GIVEN 60 DAYS TO PROPOSE SUITABLE AMENDMENTS.

Opponent name: S.C. JOHNSON & SOHN, INC.

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