AU750000B2 - Cleaning block and dispenser therefor - Google Patents
Cleaning block and dispenser therefor Download PDFInfo
- Publication number
- AU750000B2 AU750000B2 AU68016/98A AU6801698A AU750000B2 AU 750000 B2 AU750000 B2 AU 750000B2 AU 68016/98 A AU68016/98 A AU 68016/98A AU 6801698 A AU6801698 A AU 6801698A AU 750000 B2 AU750000 B2 AU 750000B2
- Authority
- AU
- Australia
- Prior art keywords
- chamber
- pipe
- dispenser
- tube
- liquid
- 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.)
- Ceased
Links
- 238000004140 cleaning Methods 0.000 title claims description 14
- 239000007788 liquid Substances 0.000 claims description 20
- 125000000864 peroxy group Chemical group O(O*)* 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 238000004090 dissolution Methods 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000011555 saturated liquid Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 27
- 239000004615 ingredient Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000003205 fragrance Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000004150 EU approved colour Substances 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 235000012907 honey Nutrition 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 229940006093 opthalmologic coloring agent diagnostic Drugs 0.000 description 2
- -1 peroxy salt Chemical class 0.000 description 2
- 229960001922 sodium perborate Drugs 0.000 description 2
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 2
- XSVSPKKXQGNHMD-UHFFFAOYSA-N 5-bromo-3-methyl-1,2-thiazole Chemical compound CC=1C=C(Br)SN=1 XSVSPKKXQGNHMD-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- PTHCMJGKKRQCBF-UHFFFAOYSA-N Cellulose, microcrystalline Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC)C(CO)O1 PTHCMJGKKRQCBF-UHFFFAOYSA-N 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920000168 Microcrystalline cellulose Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- BGRWYDHXPHLNKA-UHFFFAOYSA-N Tetraacetylethylenediamine Chemical compound CC(=O)N(C(C)=O)CCN(C(C)=O)C(C)=O BGRWYDHXPHLNKA-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000019813 microcrystalline cellulose Nutrition 0.000 description 1
- 239000008108 microcrystalline cellulose Substances 0.000 description 1
- 229940016286 microcrystalline cellulose Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000012418 sodium perborate tetrahydrate Substances 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- IBDSNZLUHYKHQP-UHFFFAOYSA-N sodium;3-oxidodioxaborirane;tetrahydrate Chemical compound O.O.O.O.[Na+].[O-]B1OO1 IBDSNZLUHYKHQP-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000009475 tablet pressing Methods 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Landscapes
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Description
P/00/01i1 Regulation 3.2
AUSTRALIA
Patents Act 1990
V
Vt
V
*V
V V V
V
V V e.
ORIGINAL
COMPLETE SPECIFICATION STANDARD PATENT Invention Title: "CLEANING BLOCK AND DISPENSER THEREFOR" lP ALISI
RECEIVED
2 21
BRISBANE
The following statement is a full description of this invention, including the best method of performing it known to us: THIS INVENTION relates to a dispenser for a cleaning block for toilets and other cleaning purposes.
The invention is particularly suitable for, but not limited to, a dispenser for a cleaning block for use in toilet cisterns.
The term "cleaning" shall also be used to include "disinfecting" and/or "deodorising".
The use of solid cleaning blocks in toilet cisterns or bowls is well-known. Many of these blocks contain active ingredients which are chemically harmful to the environment; while the dispensing rate of the blocks is generally uncontrolled and so the blocks have a short useful life 1-6 weeks).
•le* It is an object to provide a dispenser suitable for blocks, which can have a long useful life, eg., 3-6 months.
Other preferred objects will become apparent from the following description.
In a broad aspect, the present invention resides in a dispenser for cleaning blocks or tablets for use in a toilet cistern or like liquid dispenser including: a container having a chamber to contain one or more cleaning blocks or tablets; a first pipe or tube in communication with the chamber; a second pipe or tube in communication with the chamber therein, wherein: 13an inlet to the first pipe or tube is spaced at a distance 3 above an inlet to the second pipe or tube, and is so arranged that when the container is immersed in a liquid, the liquid enters the chamber to at least partially dissolve the block(s) or tablet(s) in the chamber, and a substantially pre-set volume of liquid is dispensed from the chamber through the second pipe or tube when the liquid level external to the container falls from the level of the inlet of the first pipe or tube to the level of the inlet of the second pipe or tube. Where the vertical distance between the two inlets is equal to h, and the internal diameter of the first tube or pipe is equal to d, then the volume V of the liquid dispensed from the container will be: (c d 2 h V 4 Where one or both of the pipes is adjustably mounted in the lid, cap or cover of the container, then the volume dispensed can be selectively adjustable.
15 In a modified embodiment, the dispenser has two or more of the first pipes. In a further embodiment, the inlet of the second ~pipe or tube is within the chamber and the outlet therefor is below the chamber.
Preferably, the container has a removable or hinged cap, cover or lid to enable access to the chamber for the replacement of the block(s) or tablet(s). The cap, lid or cover may be releasably engaged 4 on the side wall(s) of the container, eg., by screw-threaded, bayonetcoupling, or clipped engagement.
Preferably, the preset volume of liquid is saturated with peroxy salt dissolved from the block(s) or tablet(s).
Preferably, the first and second pipes or tubes are dimensioned to minimise turbulence in the chamber as liquid enters, or is dispensed from, the chamber.
Preferably, the peroxy salts are alkaline peroxy salts (ie., of sodium, potassium, calcium, magnesium or aluminium), including the hydrates thereof.
Suitable alkaline peroxy salts include sodium perborate (inclusive of hydrates thereof such as sodium perborate tetrahydrate and sodium perborate monohydrate) and sodium percarbonate.
The blocks or tablets preferably contain binders preferably provided in the range of 0.1% to 10% more preferably 0.2% to 5% Suitable binders include calcium stearate, magnesium stearate, dehydrated honey powder, carboxymethyl cellulose, microcrystalline cellulose, dextrin and/or glucose.
Additional ingredients may include synthetic fragrances, essential oils, surfactants or wetting agents, alkaline builders (silicates, phosphates, carbonates), collating agents (Edta polyacrylic acids), colouring agents, and/or peroxide activators (TAED). These ingredients may be provided in a range where the total of such Singredients does not exceed 10% of the cleaning block.
Preferably, the (alkaline) peroxy salt, binder(s) and additional optional ingredients are combined and mixed in the dry state, and then compressed in a tablet pressing machine under an applied pressure of 1-10 tonne/square metre, more preferably 2-4 tonne/square metre.
Preferably, the resultant tablets have a pH range of 7.5 to solubility of approximately 2.5 grams per 100mL of water at 0 C; a melting range of 60 0 C (loses H 2 0 at 130-1500) and a selfacceleration decomposition temperature of approximately 60 0
C.
To enable the invention to be fully understood, preferred embodiments will now be described with reference to the accompanying drawings in which: FIG. 1 is a schematic view showing a first embodiment of the dispenser for the blocks in a domestic toilet cistern; and FIG. 2 is a sectional side view of the dispenser; FIG. 3 is a similar view of a second embodiment; and FIG. 4 is a similar view of a third embodiment.
To manufacture the blocks, sodium perborate *i tetrahydrate (NaBo 2
H
2 0 2 .3H 2 0) in white, odourless free-flowing crystalline powder form, is mixed with dehydrated honey powder w/w) and synthetic fragrances w/w) and colouring agents (total The mixture is placed in tableting moulds, each mould will receive 20-400 grams of the mixture. The moulds are pressed f with an applied force of 2-4 tonnes per centimetre to compress the mixture into the blocks The resultant blocks 10 will only dissolve to bring the active ingredient the peroxy salt) to saturation point in the liquid surrounding the block, and will not further dissolve until that liquid/water/salt mixture is replaced.
As shown in FIG. 2, one or more of the blocks 10 are placed in a dispenser 20 (to be hereinafter described in more detail).
Referring to FIG. 1, the dispenser 20 is placed in a toilet cistern 40 which has a valve unit 41 connected to a reticulated water supply (not shown) by a water inlet pipe 42, and to a toilet pan (also not shown) by a flush pipe 43. The valve unit 41 has a float arm 44 °*.and float ball 45 to shut off the water from the inlet pipe 42 when the water level 46 reaches a pre-set height. The cistern 40 is flushed by pressing a flushing button 47 connected to the valve unit 41.
As shown in FIG. 1, when the cistern 40 is flushed, the water level 46, which is above the dispenser 20, so that the latter is rcompletely immersed, falls to a level below the inlets 21, 22 of the first and second pipes 23, 24.
Referring to FIG 2, the dispenser has a cylindrical body 25 with a side wall 26 and bottom wall 27. A removable cap 28 is screw-threadably engaged with the side wall 26 to enclose the chamber 29 within the dispenser which receives the blocks 10. The inner ends of the first and second pipes 23, 24 are in communication with the chamber 29.
7 The inlet 21 of the first pipe 23 is arranged to be distance h higher than the inlet 22 of the second pipe 24; and the internal diameter of the first pipe 23 is equal to d.
The dispenser 20 (containing the blocks 10) is placed in the cistern 40 and is immersed in the water. Water enters the chamber 29 and the blocks 10 undergo dissolution, eg., in a solubility of 2.5 grams per lOOml of water at 20 0 C. The pH range of the water within the dispenser will be in the range of 7.5 to 9.5, depending on the rate of dissolution of the blocks 10 in the water.
When the flushing button 47 is pressed to cause the valve unit 41 to release water from the cistern 40 to the pan via the flushing pipe 43, the water level 46 will fall.
While both inlets 21, 22 are below the water level, no water flow will occur from the chamber 29. However, as the water level falls below the level of inlet 21 of the first pipe 23 to the level of the inlet 22 of the second pipe 24, the "weight" of water in the first i pipe 23 above the weight of the inlet 22 of the second pipe will cause water (and dissolved salts) to be displaced through the second pipe 24 to the interior of the cistern. The water level 46 falls to the level of the inlet 22 of the second pipe 24, and the flow of the water/salts from the chamber 29 will cease.
The volume of water/salts dispensed from the chamber dh can be calculated by the formula: .V d 2 h 4 While the first and second pipes 23, 24 are shown formed integrally with the cap 28 by plastic injection moulding), one or both of the pipes may be adjustably mountable so that the height difference h between the inlets 21, 22 and therefore the volume V dispensed, may be selectively varied.
By minimising the effective water flow through the dispenser (by dimension of the internal diameter of the inlets 21, 22), .:Soo: and accurately controlling the volume of water dispensed from the 10 dispenser, the life of the blocks may be extended to, eg., 3-6 months.
the minimised water flow minimises any unwanted turbulence in the dispenser, which could cause unwanted dissolution of the block(s).
By use of alkaline peroxy salts, which produce an oxygen bleaching effect, the water flushed to the toilet pan will clean and i.15 disinfect the pan and can also carry optional subsidiary ingredients, eg., fragrances.
In the embodiment of FIG. 3, two first pipes 123, 123a are provided, with their respective inlets 121, 121a at a height h above the inlet 122 to second pipe 124. The use of two first pipes 123, 123a enables their internal diameters to be reduced to dispense the preset volume V of liquid by the formula discussed 9 above, the reduced diameters d assist in minimising the liquid flow rate through the pipes 123, 123a, and thereby minimising the unwanted turbulence in the chamber 129.
In the third embodiment of FIG. 4, the second pipe 222 has its inlet 224 in the chamber 229; but its outlet 222b below the body 225 of the dispenser 220. (Two or more first pipes 223 and second pipes 224 may be provided if preferred.) While the invention has been described in the preferred embodiments where the block(s) are used in a toilet cistern, it can also .0 be used in a toilet bowl or pan or in a urinal. In addition, the blocks can be used for other cleaning applications eg, traps or sumps, in cleaning water dispensers and the like.
Various changes and modifications may be made to the embodiments described and illustrated without departing from the present invention.
S.
S S
*S
S
S
S S
Claims (10)
1. A dispenser for cleaning blocks or tablets, for use in a toilet cistern or like liquid dispenser including: a container having a chamber to contain one or more cleaning blocks or tablets; a first pipe or tube in communication with the chamber; a second pipe or tube in communication with the chamber therein, wherein: an inlet to the first pipe or tube is spaced at a distance above an inlet to the second pipe or tube, and is so arranged that when the container is immersed in a liquid, the liquid enters the chamber to at least partially dissolve the block(s) or tablet(s) in the chamber, and a substantially pre-set volume of liquid is dispensed from the chamber through the second pipe or tube when the liquid level external to the container falls from the level of the inlet of the first pipe or tube to the level of the inlet of the second pipe or tube.
A dispenser as claimed in Claim 1 wherein: 0* 0000where the vertical distance between the two inlets is See* equal to h, and the internal diameter of the first tube or pipe is equal to d, then the volume V of the liquid dispensed from the container will d2h be: V 4 11
3. A dispenser as claimed in Claim 1 or Claim 2 wherein: one or both of the pipes is adjustably mounted in the lid, cap or cover of the container, the volume dispensed being selectively adjustable.
4. A dispenser as claimed in any one of Claims 1 to 3 wherein: two of the first pipes or tubes have their respective inlets above the inlet to the second pipe or tube.
A dispenser as claimed in any one of Claims 1 to 4 wherein: the inlet to the second pipe or tube is within the chamber, the second pipe or tube having an outlet below the chamber.
6. A dispenser as claimed in any one of Claims 1 to wherein: the container has a removable or hinged cap, cover or lid .i to enable access to the chamber for the replacement of the blocks or tablets.
7. A dispenser as claimed in Claim 6, wherein the cap, lid or sees cover is releasably engaged on at least one side wall of the container by screw-threaded, bayonet-coupling or clipped engagement.
8. A dispenser as claimed in any one of Claims 1 to 7 wherein: the preset volume of liquid is saturated with a peroxy salt dissolved from the blocks or tablets, and dissolution of the blocks or 12 tablets ceases until the saturated liquid is dispensed from the chamber.
9. A dispenser as claimed in any one of Claims 1 to 8 wherein: respective internal diameters of the first and second pipes or tubes are dimensioned to minimise turbulence in the chamber as liquid enters, or is dispensed from, the chamber. DATED this tenth day of May 2002. S.
10 PETA LORRAINE DAVIS By her Patent Attorneys FISHER ADAMS KELLY. V* 6* V
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU68016/98A AU750000B2 (en) | 1997-05-21 | 1998-05-21 | Cleaning block and dispenser therefor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPO6931A AUPO693197A0 (en) | 1997-05-21 | 1997-05-21 | Cleaning block and dispenser therefor |
| AUPO6931 | 1997-05-21 | ||
| AU68016/98A AU750000B2 (en) | 1997-05-21 | 1998-05-21 | Cleaning block and dispenser therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU6801698A AU6801698A (en) | 1998-11-26 |
| AU750000B2 true AU750000B2 (en) | 2002-07-04 |
Family
ID=25635546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU68016/98A Ceased AU750000B2 (en) | 1997-05-21 | 1998-05-21 | Cleaning block and dispenser therefor |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU750000B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150345123A1 (en) | 2014-05-27 | 2015-12-03 | As Ip Holdco, Llc | Sanitaryware cleaning system |
| US10465366B2 (en) | 2014-05-27 | 2019-11-05 | As America, Inc. | Sanitaryware cleaning system |
| USD914838S1 (en) | 2015-05-27 | 2021-03-30 | AS America Inc. | Cartridge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014979A1 (en) * | 1979-02-23 | 1980-09-03 | Henkel Kommanditgesellschaft auf Aktien | Process for producing rinsing blocks for the hygiene of water-closets |
| EP0053055A1 (en) * | 1980-11-20 | 1982-06-02 | L'oreal | Solid block for deodorizing and cleaning toilet bowls |
| EP0167210A2 (en) * | 1984-07-06 | 1986-01-08 | Unilever N.V. | Para-dichlorobenzene-free lavatory cleansing blocks |
-
1998
- 1998-05-21 AU AU68016/98A patent/AU750000B2/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014979A1 (en) * | 1979-02-23 | 1980-09-03 | Henkel Kommanditgesellschaft auf Aktien | Process for producing rinsing blocks for the hygiene of water-closets |
| EP0053055A1 (en) * | 1980-11-20 | 1982-06-02 | L'oreal | Solid block for deodorizing and cleaning toilet bowls |
| EP0167210A2 (en) * | 1984-07-06 | 1986-01-08 | Unilever N.V. | Para-dichlorobenzene-free lavatory cleansing blocks |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150345123A1 (en) | 2014-05-27 | 2015-12-03 | As Ip Holdco, Llc | Sanitaryware cleaning system |
| US10294643B2 (en) | 2014-05-27 | 2019-05-21 | As Ip Holdco, Llc | Sanitaryware cleaning system |
| US10465366B2 (en) | 2014-05-27 | 2019-11-05 | As America, Inc. | Sanitaryware cleaning system |
| USD914838S1 (en) | 2015-05-27 | 2021-03-30 | AS America Inc. | Cartridge |
Also Published As
| Publication number | Publication date |
|---|---|
| AU6801698A (en) | 1998-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |