EP2138087A1 - Geschirrspüler und Verfahren zum Einlassen von Wasser in einen Geschirrspüler - Google Patents

Geschirrspüler und Verfahren zum Einlassen von Wasser in einen Geschirrspüler Download PDF

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Publication number
EP2138087A1
EP2138087A1 EP08011653A EP08011653A EP2138087A1 EP 2138087 A1 EP2138087 A1 EP 2138087A1 EP 08011653 A EP08011653 A EP 08011653A EP 08011653 A EP08011653 A EP 08011653A EP 2138087 A1 EP2138087 A1 EP 2138087A1
Authority
EP
European Patent Office
Prior art keywords
water
washing
washing compartment
compartment
dishwasher
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.)
Withdrawn
Application number
EP08011653A
Other languages
English (en)
French (fr)
Inventor
Alf Johansson
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP08011653A priority Critical patent/EP2138087A1/de
Publication of EP2138087A1 publication Critical patent/EP2138087A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4246—Details of the tub
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0023—Water filling
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/09—Water level
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/01—Water supply, e.g. opening or closure of the water inlet valve

Definitions

  • the present invention relates to multi-compartment dishwashers and methods for letting water into such a dishwasher.
  • multi-compartment dishwashers are well-known.
  • a multi-compartment dishwasher has several pull-out drawers, slidably mounted in a cabinet.
  • each washing compartment comprises a washing tub that is arranged to receive the dishes to be washed, a water circulation unit that can perform a washing operation in the washing tub and a water inlet for leading water into the washing compartment from an external water supply, such as a domestic water supply system.
  • a multi-compartment dishwasher is generally arranged such that a washing operation can be performed in only one of the washing compartments, or in several washing compartments simultaneously.
  • a washing operation normally comprises a water intake procedure, leading water into the washing compartment via the water inlet, a washing procedure, and a drain procedure for discharging water from the washing compartment. These procedures may be performed more than once before a drying procedure for drying the cleaned dishes is performed.
  • An object of the invention is to provide a multi-compartment dishwasher that provides an efficient and cost-efficient intake of water into each washing compartment, which intake of water is also safe, i.e. securing that an adequate volume of water is let into each washing compartment before a washing procedure is performed.
  • Another object of the invention is to provide a method for letting water into a multi-compartment dishwasher that provides a safe, efficient and cost-efficient intake of water into each washing compartment.
  • the invention is based on the observance that the water pressure may be lowered during intake of water if water is let into more than one washing compartment simultaneously, resulting in a water intake procedure that is undesirably time-consuming or a water intake procedure that does not admit enough water into the washing compartment.
  • a control unit is arranged for controlling the first and second water inlets such that at any given instant, at the most one water inlet lets water into its corresponding washing compartment.
  • the arrangement provides an efficient water intake procedure in a multi-compartment dishwasher, since a maximum flow of water is introduced to fill a selected washing compartment, thereby allowing the start of a desired washing operation to occur in a short time period. Once the water intake procedure is finished, the washing operation can begin and, another washing compartment may start its water intake procedure.
  • each washing compartment may be connected to the water supply via a common hose that branches into the water inlet of each washing compartment. If several washing compartments would need water simultaneously, it may also be difficult to secure adequate intake of water since the dimensions of the common hose may limit the intake of water. By assuring that not more than one water inlet at a time is leading water into a washing compartment, according to the invention, adequate intake of water is more easily secured.
  • the control unit is arranged to control at least one of the first and second water inlets to let water into its corresponding washing compartment for a predetermined time interval. Since a substantially constant water pressure is achieved by the invention, the amount of water let into a washing compartment during a water intake procedure could be controlled by controlling the time that water is let into a washing compartment, i.e. the time that an inlet valve of the water inlet is open. Accordingly, no flow meters or other arrangements for measuring the amount of water let into the washing compartment would be necessary. As a result, a cost-efficient water intake procedure is achieved. Also, in modern dishwashers the water volumes are rather low, for which reason, it may be difficult to use flow meters for measuring the amount of water passing through the water inlet anyhow.
  • the dishwasher has, according to an embodiment of the invention, an arrangement for detecting an amount of water in the washing compartment.
  • the arrangement for detecting an amount of water in the washing compartment comprises a blind pipe arranged in communication with the circulation pump, and a pressure detecting device arranged for detecting an air pressure in the blind pipe.
  • This pressure detecting device can e.g. be a high pressure cut out.
  • control unit is arranged to control the water inlets such that the first water inlet takes precedence over the second water inlet.
  • control unit is arranged to control the inlets such that the first water inlet is allowed to start leading water into its corresponding washing compartment only if the second water inlet is not leading water into its corresponding washing compartment, and vice versa.
  • a method for letting water into a multi-compartment dishwasher comprising the step of controlling the first and second water inlets such that at any given instant, at the most one water inlet lets water into its corresponding washing compartment.
  • the step of controlling the water inlets comprise the step of controlling each inlet to let water into its corresponding washing compartment for a predetermined time interval, the procedure of letting water into a washing compartment can be performed in a cost-efficient way.
  • the step of controlling a water inlet comprises the step of starting the circulation pump before the step of detecting the amount of water in the corresponding washing compartment.
  • the circulation pump is running, the step of detecting the amount of water is facilitated since this step can be performed by means of e.g. a high pressure cut-out, which provides measurements that are precise, also at low water levels.
  • the step of controlling the water inlet comprises the step of restarting the water intake procedure if there is to little water in the washing compartment when the water intake procedure is finished. Consequently, the water inlet may use several attempts for letting water into its corresponding washing compartment.
  • the method comprises the step of terminating an ongoing water intake procedure when a predetermined time limit is passed.
  • the time-limit restricts the number of attempts that are allowed, or the total time allowed for performing a water intake procedure, and ensures that the water intake procedure will not get stuck in an endless loop.
  • the invention deals with a multi-compartment dishwasher, such as a drawer-type dishwasher.
  • a dishwasher having two washing compartments is described in this disclosure, but the number of washing compartments may also be three or more.
  • Each washing compartment is capable of independent operation such that a user may operate one or both washing compartments depending on a particular need.
  • FIG. 1 shows in cross-section a schematic side view of a multi-compartment dishwasher 1, having two washing compartments 10, 20.
  • a washing compartment 10, 20 may be configured as a pull-out drawer which is slidably mounted in a cabinet (not shown).
  • Dishwashers in which the washing compartments 10, 20 are configured as drawers are generally known as drawer-type dishwashers.
  • Each washing compartment 10, 20 has a washing tub 13, 23 for receiving dirty dishes or other objects that are to be washed.
  • a filter portion 13b, 23b is provided in a lower part of the washing tub 13, 23.
  • the filter portion is positioned above a sump 13c, 23c, which is formed in the lower part of the washing tub 13, 23, such that the filter portion 13b, 23b separates the sump 13c, 23c from an upper dish receiving part 13a, 23a of the washing tub.
  • a washing operation is performed in a washing compartment 10, 20, in order to clean the dishes in the washing tub 13, 23.
  • a washing operation comprises several procedures.
  • the dishes are cleaned during a washing procedure, preceded by a water intake procedure 100 which is performed for admitting an adequate quantity of water into the washing compartment 10, 20 for use during the washing procedure.
  • Other procedures that can be included in a washing operation are e.g. a heating procedure for heating water that is used to wash the dishes, a drain procedure for discharging water from the washing compartment 10, 20, and a drying procedure for drying the cleaned dishes.
  • a dishwasher according to the invention has a tubular conduit, such as a hose 3 that is connected to an external water supply, such as a domestic water supply system 2.
  • the hose branches into separate branches 3a, 3b, one for each washing compartment 10, 20.
  • Each branch 3a, 3b leads to a water inlet 11, 21 which is arranged to perform a water intake procedure 100, i.e. admit water, from the water supply system 2, into the washing tub 13, 23.
  • the water inlet 11, 21 comprises a first tubular part, e.g. a first hose 11a, 21a, an inlet valve 11b, 21b, and a second tubular part, e.g. a second hose 11c, 21c.
  • the first hose 11a, 21a establishes a fluid connection between the hose 3 that is connected to the water supply system and the upstream side of the inlet valve 11b 21b.
  • the second hose 11c, 21c fluidly connects the downstream side of the inlet valve11b, 21b and the washing tub 13, 23.
  • Each washing compartment 10, 20 has a water circulation unit 12, 22, arranged for establishing a flow of water in the washing compartment 10, 20 during a washing procedure.
  • Each water circulation unit 12, 22 comprises a circulation pump 16 ,26 which is driven by a motor (not shown).
  • the upstream side of each circulation pump 16, 26 is fluidly connected to the sump 13c, 23c in the washing tub 13, 23, whereas the downstream side of each circulation pump 16, 26 is connected to a conduit 17, 27, which is in communication with a sprinkler 18, 28 positioned in the washing tub 13, 23.
  • the circulation pump 16, 26 sucks water from the sump 13c, 23c and propels it into the conduit 17, 27. Water in the conduit 17, 27 is further guided into the sprinkler 18, 28 in the washing tub 13, 23, and from the sprinkler 18, 28, it is sprayed onto the dishes in the upper part 13a, 23a of the washing tub 13, 23. Water then returns to the sump 13c, 23c through the filter portion 13b, 23b, to be recirculated back to the washing tub 13, 23 by the circulation pump 16,26.
  • the dishwasher may also have a drainage pump (not shown) for pumping water out of the washing machine during a drain procedure.
  • the dishwasher 1 includes a control unit 30 (see Fig. 2 ) which is operatively connected to the two washing compartments 10, 20.
  • the control unit 30 controls the course of the washing operations in the washing compartments 10, 20, as well as the different procedures performed during a washing operation.
  • the control unit 30 comprises several sub control units 31, 32 for controlling the different washing compartments 10, 20.
  • the first sub control unit 31 is operatively connected to the first washing compartment 10 and the second sub control unit 32 is operatively connected to the second washing compartment 20.
  • a communication link 33 between the sub control units 31, 32 is a communication link 33 between the sub control units 31, 32.
  • the communication link can take various forms, such as a wire line link or a wireless link.
  • This disclosure deals with the way the control unit 30 controls the water intake procedures 100 of the different washing compartments 10, 20 in a multi-compartment dishwasher 1.
  • the control unit 30 is arranged to control the different water inlets 11, 21 such that, at any given moment, not more than one water inlet 11, 21 is admitting water into its corresponding washing tub 13, 23. Since not more than one water inlet 12, 22 at a time is leading water into a washing compartment at a time, the problems concerning reduced water pressure and water flow, that would arise if several inlets 12, 22 would let water into the dishwasher simultaneously, are avoided. Accordingly, since water pressure is more or less constant, the water intake procedure 100 will require approximately the same time, and it will be easier to control that an adequate volume of water has been provided.
  • the arrangement provides an efficient water intake procedure in a multi-compartment dishwasher, since a maximum flow of water is introduced to fill a selected washing compartment, thereby allowing the start of a desired washing operation to occur in a short time period. Once the water intake procedure 100 is finished, the washing operation can begin and, another washing compartment may start its water intake procedure 100.
  • a "first come, first served" concept is used.
  • the control unit 30 is arranged to control the water inlets 11, 21 such that the first water inlet 11 is allowed to open its inlet valve 11b and start letting water into the first washing compartment 10, only if the inlet valve 21 b of the second water inlet 21 is closed and water is currently not let into the second washing compartment 20. If the inlet valve 21b of the second water inlet 21 is open, the first water inlet 11 has to wait for that inlet valve 21 b to close, before opening its inlet valve11b, and start letting water into the first washing compartment 10.
  • the inlet valve 11b of the first water inlet 11 is open when the second water inlet 21 wants to start letting water into the second washing compartment 20, the second water inlet 21 has to wait for the inlet valve 11b of the first water inlet 11 to close.
  • the different washing compartments 10, 20 are organized in a hierarchical manner, with different priorities. If, for example, the first washing compartment 10 is given the highest priority, it will always be allowed to start letting water into its washing tub 13, and may interrupt an ongoing water intake procedure in the second washing compartment 20 which consequently has a lower priority. This means that the first water inlet 12 takes precedence over the second water inlet 22. A water intake procedure that is interrupted will continue when the inlet valve of the interrupting washing compartment 10 is closed.
  • a water intake procedure 100 in a multi-compartment dishwasher 1 has one or several time intervals for which the inlet valve is open. The length of these time intervals is predetermined and controlled by the control unit 30. This means that the water intake procedure 100 is at least partially time-controlled.
  • the amount of water can be regulated by controlling the length of the time intervals for which the inlet valve 11b, 21b is open.
  • the time-controlled water intake procedure can be made more safe by an arrangement according to an embodiment of the invention.
  • the water intake procedure 100 includes a step for securing that enough water is admitted into the washing compartment 10, 20 during the water intake procedure 100.
  • the dishwasher 1 has an arrangement 19, 29 for detecting an amount of water in the washing compartment 10, 20.
  • the arrangement 19, 29 for detecting the water level in the washing compartment 10, 20 is arranged as a sensor device 19a, 29a that detects an air pressure in a blind pipe 19b, 29b, which is fluid in communication with the circulation pump 16, 26.
  • the blind pipe 19b, 29b is directed upwards from the circulation pump and is closed in an end distal to the circulation pump 16, 26, such that when water enters the circulation pump 16, 26 and the open end of the pipe 19b, 29b, the air stuck in the pipe 19b, 29b is compressed.
  • the detected air pressure is then a measure of the amount of water in the washing compartment 10, 20.
  • the sensor device 19a, 29b is a high pressure cut-out, i.e. an electrical control switch which automatically opens or closes an electrical circuit if the pressure reaches a predetermined value.
  • a water intake procedure 100 including a step for securing that enough water is admitted into the washing tub 13, 23 may for example comprise the steps of:
  • the water intake procedure may preferably comprise a step of starting 104 the circulation pump 16, 26 such that it begins to suck water from the sump 13c, 23c, between the step of closing the inlet valve and the step of detecting the amount of water in the washing compartment.
  • the next step to perform depends on the status of the arrangement 19, 29 for detecting the amount of water in the washing compartment 10, 20. If the amount of water in the washing compartment 10, 20 is satisfactory, the water intake procedure is considered to be successfully completed, and another procedure in the washing operation can start. If there is too little water in the washing compartment 10, 20, the circulation pump 16, 26 can be stopped, whereupon the steps described above can be repeated, and a new security check is performed. Another alternative is to let the circulation pump 16, 26 work and leave the inlet valve 11b, 21b open until the amount of water in the washing compartment 10, 20 is satisfactory.
  • a time-limit for restricting the number of attempts that are allowed, or the total time allowed for performing a water intake procedure 100. If the amount of water in the washing compartment 10, 20 is still not satisfactory when the time-limit has passed, the water intake procedure 100 is considered to be unsuccessful and is terminated. When a water intake procedure is terminated because the time-limit is passed, a signal can be generated in order to tell a user of the washing machine that an error has occurred.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
EP08011653A 2008-06-27 2008-06-27 Geschirrspüler und Verfahren zum Einlassen von Wasser in einen Geschirrspüler Withdrawn EP2138087A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08011653A EP2138087A1 (de) 2008-06-27 2008-06-27 Geschirrspüler und Verfahren zum Einlassen von Wasser in einen Geschirrspüler

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Application Number Priority Date Filing Date Title
EP08011653A EP2138087A1 (de) 2008-06-27 2008-06-27 Geschirrspüler und Verfahren zum Einlassen von Wasser in einen Geschirrspüler

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8043437B1 (en) 2010-12-03 2011-10-25 Whirlpool Corporation Dishwasher with multiple treating chambers
US8627832B2 (en) 2010-12-13 2014-01-14 Whirlpool Corporation Rotating filter for a dishwashing machine
US8667974B2 (en) 2009-12-21 2014-03-11 Whirlpool Corporation Rotating filter for a dishwashing machine
US8733376B2 (en) 2011-05-16 2014-05-27 Whirlpool Corporation Dishwasher with filter assembly
US8746261B2 (en) 2009-12-21 2014-06-10 Whirlpool Corporation Rotating drum filter for a dishwashing machine
US9005369B2 (en) 2011-06-20 2015-04-14 Whirlpool Corporation Filter assembly for a dishwasher
US9010344B2 (en) 2011-06-20 2015-04-21 Whirlpool Corporation Rotating filter for a dishwashing machine
US9034112B2 (en) 2010-12-03 2015-05-19 Whirlpool Corporation Dishwasher with shared heater
US9107559B2 (en) 2011-05-16 2015-08-18 Whirlpool Corporation Dishwasher with filter assembly
US9113766B2 (en) 2010-11-16 2015-08-25 Whirlpool Corporation Method and apparatus for dishwasher with common heating element for multiple treating chambers
US9119515B2 (en) 2010-12-03 2015-09-01 Whirlpool Corporation Dishwasher with unitary wash module
US9237836B2 (en) 2012-05-30 2016-01-19 Whirlpool Corporation Rotating filter for a dishwasher
US9265401B2 (en) 2011-06-20 2016-02-23 Whirlpool Corporation Rotating filter for a dishwashing machine
US9301667B2 (en) 2012-02-27 2016-04-05 Whirlpool Corporation Soil chopping system for a dishwasher
US9451862B2 (en) 2012-06-01 2016-09-27 Whirlpool Corporation Dishwasher with unitary wash module
US9532700B2 (en) 2012-06-01 2017-01-03 Whirlpool Corporation Dishwasher with overflow conduit
US9554688B2 (en) 2012-10-23 2017-01-31 Whirlpool Corporation Rotating filter for a dishwasher and methods of cleaning a rotating filter
US9668636B2 (en) 2010-11-16 2017-06-06 Whirlpool Corporation Method and apparatus for dishwasher with common heating element for multiple treating chambers
US9687135B2 (en) 2009-12-21 2017-06-27 Whirlpool Corporation Automatic dishwasher with pump assembly
US9730570B2 (en) 2012-05-30 2017-08-15 Whirlpool Corporation Reduced sound with a rotating filter for a dishwasher
US9833120B2 (en) 2012-06-01 2017-12-05 Whirlpool Corporation Heating air for drying dishes in a dishwasher using an in-line wash liquid heater
US9861251B2 (en) 2011-06-20 2018-01-09 Whirlpool Corporation Filter with artificial boundary for a dishwashing machine
US9918609B2 (en) 2009-12-21 2018-03-20 Whirlpool Corporation Rotating drum filter for a dishwashing machine
CN109589076A (zh) * 2019-01-30 2019-04-09 深圳市宝嘉电器有限公司 一种洗碗机进水装置及其使用方法
CN110575110A (zh) * 2019-10-16 2019-12-17 浙江玛莎蒂厨具有限公司 一种洗碗机的进水装置及进水控制方法
US10653291B2 (en) 2011-06-20 2020-05-19 Whirlpool Corporation Ultra micron filter for a dishwasher

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US9375129B2 (en) 2009-12-21 2016-06-28 Whirlpool Corporation Rotating filter for a dishwashing machine
US9918609B2 (en) 2009-12-21 2018-03-20 Whirlpool Corporation Rotating drum filter for a dishwashing machine
US8667974B2 (en) 2009-12-21 2014-03-11 Whirlpool Corporation Rotating filter for a dishwashing machine
US10779703B2 (en) 2009-12-21 2020-09-22 Whirlpool Corporation Rotating drum filter for a dishwashing machine
US8746261B2 (en) 2009-12-21 2014-06-10 Whirlpool Corporation Rotating drum filter for a dishwashing machine
US9687135B2 (en) 2009-12-21 2017-06-27 Whirlpool Corporation Automatic dishwasher with pump assembly
US9211047B2 (en) 2009-12-21 2015-12-15 Whirlpool Corporation Rotating filter for a dishwashing machine
US9113766B2 (en) 2010-11-16 2015-08-25 Whirlpool Corporation Method and apparatus for dishwasher with common heating element for multiple treating chambers
US9668636B2 (en) 2010-11-16 2017-06-06 Whirlpool Corporation Method and apparatus for dishwasher with common heating element for multiple treating chambers
US9572473B2 (en) 2010-12-03 2017-02-21 Whirlpool Corporation Dishwasher with unitary wash module
US9034112B2 (en) 2010-12-03 2015-05-19 Whirlpool Corporation Dishwasher with shared heater
US9119515B2 (en) 2010-12-03 2015-09-01 Whirlpool Corporation Dishwasher with unitary wash module
US9532696B2 (en) 2010-12-03 2017-01-03 Whirlpool Corporation Dishwasher with unitary wash module
US9532697B2 (en) 2010-12-03 2017-01-03 Whirlpool Corporation Dishwasher with unitary wash module
US8043437B1 (en) 2010-12-03 2011-10-25 Whirlpool Corporation Dishwasher with multiple treating chambers
US9364131B2 (en) 2010-12-13 2016-06-14 Whirlpool Corporation Rotating filter for a dishwashing machine
US8627832B2 (en) 2010-12-13 2014-01-14 Whirlpool Corporation Rotating filter for a dishwashing machine
US9107559B2 (en) 2011-05-16 2015-08-18 Whirlpool Corporation Dishwasher with filter assembly
US9167950B2 (en) 2011-05-16 2015-10-27 Whirlpool Corporation Dishwasher with filter assembly
US8733376B2 (en) 2011-05-16 2014-05-27 Whirlpool Corporation Dishwasher with filter assembly
US11882977B2 (en) 2011-05-16 2024-01-30 Whirlpool Corporation Dishwasher with filter assembly
US9700196B2 (en) 2011-05-16 2017-07-11 Whirlpool Corporation Dishwasher with filter assembly
US9538898B2 (en) 2011-05-16 2017-01-10 Whirlpool Corporation Dishwasher with filter assembly
US10314457B2 (en) 2011-06-20 2019-06-11 Whirlpool Corporation Filter with artificial boundary for a dishwashing machine
US9861251B2 (en) 2011-06-20 2018-01-09 Whirlpool Corporation Filter with artificial boundary for a dishwashing machine
US9265401B2 (en) 2011-06-20 2016-02-23 Whirlpool Corporation Rotating filter for a dishwashing machine
US9010344B2 (en) 2011-06-20 2015-04-21 Whirlpool Corporation Rotating filter for a dishwashing machine
US9005369B2 (en) 2011-06-20 2015-04-14 Whirlpool Corporation Filter assembly for a dishwasher
US10178939B2 (en) 2011-06-20 2019-01-15 Whirlpool Corporation Filter with artificial boundary for a dishwashing machine
US10070769B2 (en) 2011-06-20 2018-09-11 Whirlpool Corporation Rotating filter for a dishwashing machine
US10058227B2 (en) 2011-06-20 2018-08-28 Whirlpool Corporation Filter assembly for a dishwasher
US10653291B2 (en) 2011-06-20 2020-05-19 Whirlpool Corporation Ultra micron filter for a dishwasher
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US10058228B2 (en) 2012-02-27 2018-08-28 Whirlpool Corporation Soil chopping system for a dishwasher
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