Claims
- 1. An automatic dishwashing appliance having a washing basin comprising an unattached electrolytic device for treating tableware to provide an improvement in cleaning, sanitizing, and/or stain removal, wherein said device comprises:
(a) a body comprising at least one inlet port for collecting an aqueous electrolytic solution provided by said washing basin of said appliance; (b) an electrochemical cell, located within said body, comprising at least one inlet opening and one outlet opening, and at least one pair of electrodes defining a cell gap comprising a cell passage formed therebetween through which said aqueous electrolytic solution can flow; and (c) a source of electrical current supply for providing electrical current between said pair of electrodes; wherein said device is self-powered and self-contained; and wherein said cell is in fluid communication with said aqueous electrolytic solution of said washing basin via said inlet port of said body, said cell passage, and/or said outlet opening.
- 2. An automatic dishwashing appliance according to claim 1, wherein said unattached electrolytic device comprises an electrolytic composition comprising recirculated wash and/or rinse liquor provided by said appliance, and wherein at least some of said recirculated wash and/or rinse liquor is electrolyzed.
- 3. An automatic dishwashing appliance according to claim 1, wherein said gap between said at least one pair of electrodes having a gap spacing between about 0.1 mm to about 5.0 mm; and wherein the operating voltage is between about 1 and about 12 volts.
- 4. An automatic dishwashing appliance according to claim 1, wherein said electrochemical cell is non-partitioned.
- 5. An automatic dishwashing appliance according to claim 1, wherein said unattached electrolytic device is disposable and/or replaceable.
- 6. An automatic dishwashing appliance according to claim 1, wherein said electrochemical cell is accessible though at least one sealable compartment in said body, and wherein said electrochemical cell is disposable and/or replaceable via a refill and/or a replacement cartridge.
- 7. An automatic dishwashing appliance according to claim 1, wherein said unattached electrolytic device further comprises a means for activating and/or deactivating said electrochemical cell at specific time intervals throughout the wash and/or rinse cycles of said appliance.
- 8. An automatic dishwashing appliance according to claim 7, wherein said means of activation and/or deactivation of said cell is selected from among the group consisting of timer, sensor, and combinations thereof, and wherein said sensor is optionally capable of analyzing or detecting the composition of the fluid or gaseous environment in said device and/or within said appliance, and wherein said sensor can signal said device and/or said cell causing said device and/or said cell to activate or deactivate said cell.
- 9. An automatic dishwashing appliance according to claim 7, wherein said means of activation and/or deactivation of said cell is selected from among the group consisting of pH sensor, timer, or combinations thereof.
- 10. An automatic dishwashing appliance according to claim 8, wherein when said fluid or gaseous environment of said device and/or within said appliance comprises a volatile compound or gas selected from the group consisting of perfumes, perfume raw materials, volatile organic compounds, gases comprising oxides of carbon, sulfur, or nitrogen, and mixtures thereof, and wherein when said sensor detects said volatile compound or gas in said device and/or within said appliance, said sensor electrically and/or electronically signals said device and/or said cell to activate or deactivate said cell.
- 11. An automatic dishwashing appliance according to claim 2, wherein said unattached electrolytic device further comprising a filter to minimize fouling of said electrochemical cell from the flow of said recirculated electrolytic solution through said cell passage.
- 12. An automatic dishwashing appliance according to claim 11, wherein said filtering means comprises a filter removably housed in or attached to said body.
- 13. An automatic dishwashing appliance according to claim 11, wherein said filter is disposable and/or replaceable.
- 14. An automatic dishwashing appliance according to claim 1, wherein said electrochemical cell is robust, wherein said robust cell comprises a cathode of stainless steel and an anode of titanium, and wherein said anode is coated and/or layered with at least one of the materials selected from the group consisting of platinum, ruthenium iridium, and oxides, alloys, and mixtures thereof.
- 15. An automatic dishwashing appliance according to claim 14, wherein said cell passage of said robust cell forms a gap between said at least one pair of electrodes having a gap spacing between about 0.1 mm to about 0.5 mm; and wherein the operating voltage is between about 3 and about 6 volts.
- 16. An automatic dishwashing appliance according to claim 1, wherein said unattached electrolytic device further comprising means for cell regeneration to extend the operating life of said at least one pair of electrodes by descaling or unfouling said at least one pair of electrodes.
- 17. An automatic dishwashing appliance according to claim 16, wherein said electrochemical cell regeneration means comprises a liquid electrode cleansing composition selected from the group consisting of an anticorrosion agent, descaling agent, and mixtures thereof, wherein said cell passage may further comprise said liquid electrode cleansing composition.
- 18. An automatic dishwashing appliance according to claim 17, wherein said liquid electrode cleansing composition is vinegar.
- 19. An automatic dishwashing appliance according to claim 16, wherein said electrochemical cell regeneration means comprises a means for periodically reversing the polarity of said at least one pair of electrodes.
- 20. An automatic dishwashing appliance according to claim 1, wherein said source of electrical current supply in said unattached electrolytic device is achieved by one or more rechargeable electrical batteries.
- 21. An automatic dishwashing appliance according to claim 20, wherein said electrical battery is rechargeable.
- 22. An automatic dishwashing appliance according to claim 20, wherein said unattached electrolytic device further comprising at least one sealed or sealable compartment wherein said battery is integrated within said unattached electrolytic device via said compartment.
- 23. An automatic dishwashing appliance according to claim 1, wherein said discharge effluent is released outside said unattached electrolytic device through said outlet port by means of a pump located within said unattached electrolytic device.
- 24. An automatic dishwashing appliance according to claim 23, wherein said unattached electrolytic device further comprising at least one additional and separate, sealed or sealable compartment, wherein said pump is housed in said separate compartment within said unattached electrolytic device.
- 25. An automatic dishwashing appliance according to claim 1, wherein said discharge effluent is released outside said unattached electrolytic device and into said washing basin of said appliance through said outlet port by gravity flow.
- 26. An automatic dishwashing appliance according to claim 1, wherein said unattached electrolytic device further comprising a storage means for storing at least one product prior to its release.
- 27. An automatic dishwashing appliance according to claim 26, wherein said storage means comprises at least one additional sealed or sealable compartment in said unattached electrolytic device for containing said at least one product, such that said at least one product is released in conjunction with at least one predetermined point in time during the wash and/or rinse cycle of said appliance, wherein said at least one sealed or sealable compartment can house at least one product in the form selected from the group consisting of a tablet, free-flowing gel, free-flowing powder, free-flowing liquid, or combinations thereof, and wherein said at least one compartment is closeable or resealable such that the compartment's contents are not contaminated by an external medium.
- 28. An automatic dishwashing appliance according to claim 26 wherein said at least one product comprising said aqueous electrolytic solution selected from the group consisting of chloride ions, chlorite ions, water-soluble salts having the formula (M)x(XO2)y and/or (M)x(X)y wherein X is Cl, Br, or I and wherein M is a metal ion or cationic entity and wherein x and y are chosen such that said salt is charge balanced, electrolysis precursor compounds, electrolysis precursor salts with low water solubility, electrolysis precursor compounds contained within a medium or matrix for controlled release, electrolyzed water, detergent compositions, rinse aid compositions, electrode cleaning agents, bleach-scavenging agents, metal-protecting agents, adjunct ingredients, and mixtures thereof.
- 29. An automatic dishwashing appliance according to claim 27, further comprises at least one replaceable component, comprising said at least one product is in the form of a product refill or replacement cartridge.
- 30. An automatic dishwashing appliance according to claim 27, wherein said means to ensure that the compartment's contents are not contaminated by an external medium is achieved by a one-way valve which allows products to flow outside but avoids contamination of the interior of said compartment from an outside medium.
- 31. An automatic dishwashing appliance according to claim 1, wherein said unattached electrolytic device further comprises at least one replaceable component selected from the group consisting of electrochemical cell, filter, elastomeric slit valve, battery, self-contained source of chloride or chlorite ions, and combinations thereof.
- 32. An automatic dishwashing appliance according to claim 31, wherein said bleach-scavenging agent or said metal-protecting agent is selected from the group consisting of perborate, percarbonate, ascorbic acid or derivatives thereof, carbamate, ammonium, sulfite, bisulfite, aluminum tristearate, sodium silicate, benzotriazole, amines, amino acids, and mixtures thereof.
- 33. An automatic dishwashing appliance according to claim 31 wherein said at least one product is not contained within a sealed or sealable compartment but rather is in direct fluid contact with wash and/or rinse liquors for at least some period of time during operation of said appliance.
- 34. An automatic dishwashing appliance according to claim 1 wherein said unattached electrolytic device further comprises means for communicating to the consumer when it is time to refill or replace said electrochemical cell cartridge.
- 35. An automatic dishwashing appliance according to claim 34 wherein said communication means comprises an indicator for communicating to the consumer when it is time to refill or replace said electrochemical cell cartridge.
- 36. An unattached electrolytic device for placement in an automatic dishwashing appliance for treating tableware with electrolyzed water to provide an improvement in cleaning, sanitizing, and/or stain removal, wherein said device comprises:
(a) a body comprising at least one inlet port for collecting an aqueous electrolytic solution provided by said appliance; (b) an electrochemical cell comprising at least one inlet opening and one outlet opening, and at least one pair of electrodes defining a cell gap comprising a cell passage formed therebetween through an aqueous electrolytic solution can flow; and (c) a source of electrical current supply for providing electrical current between said pair of electrodes; wherein said device is self-powered and self-contained; wherein said cell is in fluid communication with said aqueous electrolytic solution of said washing basin via said inlet port of said body, said cell passage, and/or said outlet opening; and wherein when said device is placed in the washing basin of said appliance, said device is non-buoyant.
- 37. A device according to claim 36, wherein said unattached electrolytic device comprises an electrolytic composition comprising recirculated wash and/or rinse liquor provided by said appliance, and wherein at least some of said recirculated wash and/or rinse liquor is electrolyzed.
- 38. A device according to claim 36, wherein said gap between said at least one pair of electrodes having a gap spacing between about 0.1 mm to about 5.0 mm; and wherein the operating voltage is between about 1 and about 12 volts.
- 39. A device according to claim 36, wherein said electrochemical cell is non-partitioned.
- 40. A device according to claim 36, wherein said unattached electrolytic device is disposable and/or replaceable.
- 41. A device according to claim 36, wherein said electrochemical cell is disposable and/or replaceable.
- 42. A device according to claim 41, wherein said electrochemical cell is disposable and/or rechargeable via a refill and/or a replacement cartridge removable from said at least one compartment of said unattached electrolytic device.
- 43. A device according to claim 36, wherein said unattached electrolytic device further comprises a means for activating and/or deactivating said electrochemical cell at specific time intervals throughout the wash and/or rinse cycles of said appliance.
- 44. A device according to claim 43, wherein said unattached electrolytic device said means of activation and/or deactivation of said electrochemical cell is selected from among the group consisting of timer, sensor, and combinations thereof, and wherein said sensor is optionally capable of analyzing or detecting the composition of the fluid or gaseous environment of said unattached electrolytic device or within said appliance, and signaling said unattached electrolytic device to activate or deactivate said electrochemical cell.
- 45. A device according to claim 44, wherein when said fluid or gaseous environment of said unattached electrolytic device or within said appliance comprises a volatile compound or gas selected from the group consisting of perfumes, perfume raw materials, volatile organic compounds, gases comprising oxides of carbon, sulfur, or nitrogen, and mixtures thereof, and when said at least one sensor detects said volatile compound or gas in said unattached electrolytic device or within said appliance, said sensor electrically signals said unattached electrolytic device to activate or deactivate said electrochemical cell.
- 46. A device according to claim 36, further comprising a filtering means to minimize fouling of said electrochemical cell from the flow of said recirculated electrolytic solution through said cell passage.
- 47. A device according to claim 46, wherein said filtering means comprises a filter removably housed in or attached to said body, wherein said filter is disposable and/or replaceable.
- 48. A device according to claim 36, further comprising means for cell regeneration to extend the operating life of said at least one pair of electrodes by descaling or unfouling said at least one pair of electrodes.
- 49. An automatic dishwashing appliance according to claim 48, wherein said electrochemical cell regeneration means comprises a liquid electrode cleansing composition selected from the group consisting of an anticorrosion agent, descaling agent, and mixtures thereof, wherein said cell passage may further comprise said liquid electrode cleansing composition.
- 50. A device according to claim 36, wherein said electrochemical cell is robust, wherein said robust cell comprises a cathode of stainless steel and an anode of titanium, and wherein said anode is coated and/or layered with at least one of the materials selected from the group consisting of platinum, ruthenium iridium, and oxides, alloys, and mixtures thereof.
- 51. A device according to claim 50, wherein said cell passage of said robust cell forms a gap between said at least one pair of electrodes having a gap spacing between about 0.1 mm to about 0.5 mm; and wherein the operating voltage is between about 3 and about 6 volts.
- 52. A device according to claim 36, further comprising a cell regeneration means to extend the operating life of said at least one pair of electrodes by descaling or unfouling said at least one pair of electrodes.
- 53. A device according to claim 52, wherein said electrochemical cell regeneration means comprises periodic addition of a liquid electrode cleansing composition through said cell passage of said electrochemical cell, wherein said liquid electrode cleansing composition is selected from the group consisting of an anticorrosion agent, descaling agent, and mixtures thereof said unattached electrolytic device.
- 54. A device according to claim 53, wherein said liquid electrode cleansing composition is vinegar.
- 55. A device according to claim 52, wherein said electrochemical cell regeneration means comprises a means for periodically reversing the polarity of said at least one pair of electrodes.
- 56. A device according to claim 36, wherein said source of electrical current supply is achieved by one or more rechargeable electrical batteries.
- 57. A device according to claim 56, wherein said electrical battery is rechargeable.
- 58. A device according to claim 56, further comprising at least one sealed or sealable compartment wherein said battery is integrated within said unattached electrolytic device via said at least one sealed or sealable compartment.
- 59. A device according to claim 36, wherein said discharge effluent is released outside the device through said outlet port by means of a pump located within said unattached electrolytic device.
- 60. A device according to claim 59, further comprising at least one additional and separate, sealed or sealable compartment, wherein said pump is housed in said separate compartment within said unattached electrolytic device.
- 61. A device according to claim 36, wherein said discharge effluent is released outside said unattached electrolytic device and into said washing basin of said appliance through said outlet port by gravity flow.
- 62. A device according to claim 36, further comprising a storage means for storing at least one product prior to its release.
- 63. A device according to claim 62, wherein said storage means comprises at least one sealed or sealable compartment in said unattached electrolytic device for containing said at least one product, such that said at least one product is released in conjunction with at least one predetermined point in time during the wash and/or rinse cycle of said appliance, wherein said at least one sealed or sealable compartment can house at least one product in the form selected from the group consisting of a tablet, free-flowing gel, free-flowing powder, free-flowing liquid, or combinations thereof, and wherein said at least one compartment is recloseable such that the compartment's contents are not contaminated by an external medium.
- 64. A device according to claim 63, further comprises at least one replaceable component, comprising said at least one product is in the form of a product refill or replacement cartridge.
- 65. A device according to claim 63, wherein said means to ensure that the compartment's contents are not contaminated by an external medium is achieved by a one-way valve which allows products to flow outside but avoids contamination of the interior of said compartment from an outside medium.
- 66. A device according to claim 62 wherein said at least one product comprising said aqueous electrolytic solution selected from the group consisting of chloride ions, chlorite ions, water-soluble salts having the formula (M)x(XO2)y and/or (M)x(X)y wherein X is Cl, Br, or I and wherein M is a metal ion or cationic entity and wherein x and y are chosen such that said salt is charge balanced, electrolysis precursor compounds, electrolysis precursor salts with low water solubility, electrolysis precursor compounds contained within a medium or matrix for controlled release, electrolyzed water, detergent compositions, rinse aid compositions, electrode cleaning agents, bleach-scavenging agents, metal-protecting agents, adjunct ingredients, and mixtures thereof.
- 67. A device according to claim 66, wherein said bleach-scavenging agent or said metal-protecting agent is selected from the group consisting of perborate, percarbonate, ascorbic acid or derivatives thereof, carbamate, ammonium, sulfite, bisulfite, aluminum tristearate, sodium silicate, benzotriazole, amines, amino acids, and mixtures thereof.
- 68. A device according to claim 62 wherein said at least one product is not contained within a resealable compartment but rather is in direct fluid contact with wash and/or rinse liquors for at least some period of time during operation of said appliance.
- 69. A device according to claim 65, further comprises at least one replaceable component, comprising said one-way valve in the form of a disposable and/or replaceable elastomeric slit valve.
- 70. A device according to claim 36 wherein said unattached electrolytic device further comprises means for communicating to the consumer when it is time to refill or replace said electrochemical cell cartridge.
- 71. A device according to claim 70 wherein said communication means comprises an indicator for communicating to the consumer when it is time to refill or replace said electrochemical cell cartridge.
- 72. A device according to claim 36, wherein said unattached electrolytic device further comprises a disposable and/or replaceable self-contained source of chloride or chlorite ions.
- 73. A device according to claim 36, further comprising a sprayer device, wherein said sprayer device is suitable for sanitization purposes under conditions selected from the group consisting of hand dishwashing, dish pretreatment, dish post-treatment, and combinations thereof.
- 74. A device according to claim 36, wherein said unattached electrolytic device comprises a form that is suitable for immersion into a reservoir for purposes of treating wash and/or rinse liquor for applications selected from the group consisting of automatic dishwashing, hand dishwashing, dish pretreatment, dish post-treatment, and combinations thereof
- 75. A method for treating tableware in an automatic dishwashing appliance for improved cleaning, sanitizing, and/or stain removal comprising an unattached electrolytic device for producing electrolyzed water, said method comprising the steps of:
(a) placing tableware in need of treatment into said appliance; (b) optionally providing an anti-foaming agent; (c) providing said unattached electrolytic device comprising a body comprising at least one inlet port for collecting an aqueous electrolytic solution provided by said appliance, an electrochemical cell comprising at least one inlet opening and one outlet opening, and at least one pair of electrodes defining a cell gap comprising a cell passage formed therebetween through which said aqueous electrolytic solution can flow, and a source of electrical current supply for providing electrical current between said pair of electrodes; (d) providing said aqueous electrolytic solution in fluid communication with said electrochemical cell via said inlet port of said body of said unattached electrolytic device; (e) operating said cell and/or device so that said electrochemical cell produces at least some electrolyzed water; (f) discharging said electrolyzed water into the washing basin of said appliance via said outlet opening of said cell; and (g) contacting said tableware in need of treatment with said electrolyzed water comprising wash and/or rinse liquor.
- 76. A method according to claim 75 of cleaning and sanitizing or disinfecting tableware comprising an electrolytic device comprising a recirculating system for electrolyzed water.
- 77. A method according to claim 75, wherein the method further comprises at least one of steps of:
a) prior to step (b), providing a composition selected from the group consisting of detergent composition, rinse aid composition, said at least one product according to claim 64, and mixtures thereof; b) prior to step (b), placing at least one product, according to claim 64, into said at least one sealed or sealable compartment of an electrolytic device for release during said rinse and/or wash cycle of said appliance and manually closing said compartment; c) prior to step (c), dispensing at least one product from said at least one sealed or sealable compartment of said electrolytic device; d) after step (d), dispensing at least one product from said electrolytic device comprising a bleach-scavenging agent or metal protection agent; and e) combinations thereof.
- 78. A method according to claim 75, wherein subsequent to the period or periods of electrolysis, or during one or more of the rinses, and after which no further electrolyzed water comes into contact with said dishes, the method further comprises the step of dispensing said chlorine bleach-scavenging agent or metal protection agent.
- 79. A method according to claim 75 for washing tableware in conjunction with a separate composition comprising a solid electrolysis precursor compound of low water solubility, an electrolysis precursor compound containing a matrix of low water solubility, and mixtures thereof, said method comprising the steps of a) providing tableware in need of treatment, pretreatment, or post-treatment in an appliance or countertop sink comprising wash and/or rinse liquor;
b) placing said unattached electrolytic device in said appliance or said sink to enable direct contact of said unattached electrolytic device with wash and/or rinse liquor comprising said separate solid electrolysis precursor compound of low water solubility, an electrolysis precursor compound containing a matrix of low water solubility, and mixtures thereof; a) providing an electrolytic composition comprising a compound selected from the group consisting of chloride ions, chlorite ions, water-soluble salts having the formula (M)x(XO2)y and/or (M)x(X)y wherein X is Cl, Br, or I and wherein M is a metal ion or cationic entity and wherein x and y are chosen such that said salt is charge balanced, and mixtures thereof; c) operating said cell and/or device so that said electrochemical cell produces at least some electrolyzed water in said wash and/or rinse liquor; and d) contacting said tableware with said wash and/or rinse water comprising said electrolyzed water generated from said unattached electrolytic device.
- 80. A method according to claim 76, wherein said unattached electrolytic device is an unattached, non-buoyant electrolytic device according to claim 36.
- 81. A method according to claim 76 wherein X is chlorine.
- 82. A method according to claim 78 and after step (d), said method further comprising the steps of:
b) recirculating said wash and/or rinse liquor comprising electrolyzed water again through said unattached electrolytic device via a feed means; and c) re-contacting said tableware again with said recirculated electrolyzed water.
- 83. A method for cleaning or sanitizing or disinfecting tableware comprising an automatic dishwashing appliance according to claim 1 in conjunction with an unattached, recirculating electrolytic device.
- 84. An article of manufacture for an unattached electrolytic device comprising
(a) a package; (b) a replacement component for said electrolytic device selected from the group consisting of a:
(i) replacement electrochemical cell, (ii) replacement automatic dishwashing composition comprising a component selected from the group consisting of suds suppressor, perfume, bleach-scavenging agent, metal-protecting agent, and mixtures thereof; (iii) replacement product comprising a component selected from the group consisting of chloride ions, an electrolytic composition comprising chlorite ions, electrolytic solution comprising salts having the formula (M)x(XO2)y and/or (M)x(X)y wherein X is Cl, Br, or I and wherein M is a metal ion or cationic entity and wherein x and y are chosen such that the salt is charge balanced, electrolysis precursor compound, an electrolysis precursor salt with low water solubility, an electrolysis precursor compound contained within a medium for controlled release, and mixtures thereof, wherein said product is optionally housed in a porous basket; (iv) replacement filter or screen for said unattached electrolytic device; (v) replacement elastomeric slit valve; and (vi) combinations thereof; and (c) information in association with said package comprising instructions to insert said replacement components in said electrolytic device.
- 85. An article of manufacture according to claim 84, wherein said replacement product is in the form such that once placed inside a dishwashing appliance it provides a controlled release of said electrolysis precursor compound into the wash and/or rinse liquors during operation of said automatic dishwasher over a period of several weeks or months of regular household and/or commercial use.
- 86. An appliance according to claim 1, wherein said appliance is a commercial dishwasher selected from the group consisting of conveyor-low-temperature type, cabinet-low-temperature type, and combinations thereof.
- 87. An appliance according to claims 1 or 86, wherein said source of electrical current supply is the building electrical outlet, wherein said device comprises a power cord and plug for connection to said electrical outlet to allow for higher levels of bleaching species to be generated.
- 88. An appliance according to claim 87, wherein disinfectancy can be achieved in the wash and/or rinse liquor at water temperatures below 48 degrees C.
- 89. A device according to claim 36, wherein said appliance is a commercial dishwasher selected from the group consisting of conveyor-low-temperature type, cabinet-low-temperature type, and combinations thereof.
- 90. A device according to claim 89, wherein said source of electrical current supply is the building electrical outlet, wherein said device comprises a power cord and plug for connection to said electrical outlet to allow for higher levels of bleaching species to be generated.
- 91. A device according to claim 90, wherein disinfectancy can be achieved in the wash and/or rinse liquor at water temperatures below 48 degrees C.
- 92. A method according to claim 75, wherein said appliance is a commercial dishwasher selected from the group consisting of conveyor-low-temperature type, cabinet-low-temperature type, and combinations thereof.
- 93. A method according to claim 92, wherein said source of electrical current supply is the building electrical outlet, wherein said device comprises a power cord and plug for connection to said electrical outlet to allow for higher levels of bleaching species to be generated.
- 94. A method according to claim 93, wherein disinfectancy can be achieved in the wash and/or rinse liquor at water temperatures below 48 degrees C.
Parent Case Info
[0001] This application claims benefit of the filing date of U.S. Provisional Application Nos. 60/381,455; 60/381,472; 60,381,146 and 60/381,473 all filed May 17, 2002. This application claims reference to U.S. Provisional Application No. 60/280,913, filed Apr. 2, 2001 and U.S. patent application Ser. No. 09/947,846, filed Sep. 6, 2001.
Provisional Applications (4)
|
Number |
Date |
Country |
|
60381455 |
May 2002 |
US |
|
60381472 |
May 2002 |
US |
|
60381146 |
May 2002 |
US |
|
60381473 |
May 2002 |
US |