GB2134078A - Control data input into metering and supply apparatus for washing and rinsing agents - Google Patents

Control data input into metering and supply apparatus for washing and rinsing agents Download PDF

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Publication number
GB2134078A
GB2134078A GB08330028A GB8330028A GB2134078A GB 2134078 A GB2134078 A GB 2134078A GB 08330028 A GB08330028 A GB 08330028A GB 8330028 A GB8330028 A GB 8330028A GB 2134078 A GB2134078 A GB 2134078A
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United Kingdom
Prior art keywords
data
metering
washing
container
card
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Granted
Application number
GB08330028A
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GB8330028D0 (en
GB2134078B (en
Inventor
Richard Graf
Manfred Kruger
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Individual
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Individual
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Publication of GB8330028D0 publication Critical patent/GB8330028D0/en
Publication of GB2134078A publication Critical patent/GB2134078A/en
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Publication of GB2134078B publication Critical patent/GB2134078B/en
Expired 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
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4472—Blister packaging or refill cartridges
    • 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
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4418—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants in the form of liquids
    • 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
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4445—Detachable devices
    • A47L15/4454—Detachable devices with automatic identification means, e.g. barcodes, RFID tags or magnetic strips
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/12—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers
    • G05B19/124—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers using tapes, cards or discs with optically sensed marks or codes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/42—Detergent or additive supply
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/58—Indications or alarms to the control system or to the user

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

In the case of apparatus for storing, automatically controlled metering and addition of liquid washing or rinsing agents kept in containers, the proper association of the respective washing or rinsing agents with corresponding metering channels should be as simple as possible. Such containers have for some time carried bar code labels or can be associated with other data carriers which serve the automatic inventorising, price or discount setting of the goods in the wholesale and retail trade. Such data can include statements on the kind and/or the metering quantities and/or the concentration of the washing or rinsing agent and the content of this labelling can be transmitted by means of a data reader (46) to control equipment (20) of the apparatus. The labelling may be a bar code printed on the agent container, or a card associated with the container and detachable therefrom for insertion into a reader slot in the washing machine. <IMAGE>

Description

SPECIFICATION Control data input into metering and supply apparatus for washing and rinsing agents The present invention relates to a method of control data input into metering and supply apparatus for washing and rinsing agents, and to apparatus for carrying out such method.
In German (Fed. Rep.) Patent Specification No. 25 54 592 and Utility Model No. 80 33 429 there are disclosed apparatus in which washing or rinsing agents can be stored in made up or component form and fed by means of metering equipment in measured quantities in appropriate stages of a washing process. Such apparatus can also be so constructed according to German patent application P 32 42 410.8 that the user, instead of pouring the content of a washing or rinsing agent container into a supply receptable fixedly installed in the apparatus, can place the container together with its content in the apparatus and connect it with the metering equipment.
It would be desirable to facilitate the operation and the association of the individual washing and rinsing agents with respective metering channels of the apparatus so that erroneous operations or associations by the operator are avoided as far as possible. In that case, this facilitation should be possible for both apparatus with fixedly installed supply receptacles, which are charged with washing or rinsing agents from containers, and apparatus in which containers can be placed and connected with metering channels.
According to a first aspect of the present invention there is provided a method of effecting input of data provided on or in association with a washing or rinsing agent container into electronic control means of apparatus for storing, automatically metering and supplying such agent, the data comprising information concerning at least one of the kind, metering quantity and dose concentration of such agent and the method comprising the step of transferring such data by a data reader to the central means.
Such a method can make use of the fact that bar code labels, which contain statements for the wholesale and retail trade to enable automatic inventorising and price and discount setting, are regularly applied on present day washing and rinsing agent containers. Bar code labels of that kind can readily contain additional statements on the kind and/or the metering quantity and/or the concentration of the washing or rinsing agent.
According to a second aspect of the present invention there is provided apparatus for carrying out the method of the first aspect of the invention, the apparatus comprising equipment for storing, automatically metering and supplying a washing or rinsing agent, electronic control means for controlling storage, metering and supply operation of such equipment, and a data reader which is connected at an output thereof to the control means and which is operable to read said data and to transfer the read data to the control means.
In the use of apparatus embodying the invention, the operator can pass a bar code label past the reader and thereby transfer data of the above-mentioned kind to the control means. The control means for the metering and addition of the individual washing or rinsing agent doses can then automatically evaluate this data and translate it into the required supply of the agent.
Such automatic evaluation of the data can also be initiated through insert cards which accompany the containers, for example as a part which can be broken off from the container body or a closure cap thereof.
Examples of the method and embodiments of the apparatus of the present invention will now be more particularly described with reference to the accompanying drawings, in which: Fig. 1 is a schematic side view of first metering and supply apparatus embodying the invention; Fig. 2 is a perspective front view of second metering and supply apparatus embodying the invention; Fig. 3 is a front view of an operating panel of third metering and supply apparatus embodying the invention; Fig. 4 is a side elevation of a liquid washing agent container with a bar code label readable by a data reader of apparatus embodying the invention; and Fig. 5 is a perspective front view of an operating panel of fourth metering and supply apparatus embodying the invention.
Referring now to the drawings, there is shown in Fig. 1 metering and supply apparatus for use in association with, for example, a laundry washing or dishwashing machine. The apparatus is adapted to house washing and/or rinsing agent containers 41, although it could be provided with fixed receptacles for receiving the contents of such containers. In addition, the apparatus comprises a data reader 46 which is mounted in the region of a basket 4 serving as container locating means, namely at one of its side walls, preferably the front side. On the way to its respective location, each container 41 can be moved past the reader 46 to enable the reader to read a bar code label on the container and to transmit the read data to control means 20 by way of an output line 47.
Alternatively, the reader can be arranged, as shown in Fig. 2, in an operating panel 14 at a front side of the apparatus. In this case, an optical reading device 46 is arranged underneath operating knobs 5.
The function will now be explained by reference to a further embodiment of the apparatus, which has an operating panel 17 as shown in Fig. 3: The arrow at the reading device 46 indicates to the user that the bar code label must be guided past this location. Provided in the operating panel 17 are operating elements 71 , for example press keys, actuable to predetermine for the control means a particular one of metering channels I to IV to receive a washing or rinsing agent from the container having the bar code label that has just been read. Also provided on the panel 17 are indicating elements 72 at which, for example, the concentration strength of that washing or rinsing agent is made visible in clear text.Instead of the concentration strength, a statement on the metering quantity can appear in the respective indicator 72 and, for example, remain until a new input has been undertaken at the reading device 46 for the metering channel concerned.
The container 41 illustrated in Fig. 4 carries a label 50 with promotion and information imprint 51. Also present on the label 50 is a bar code label 54. The label 54 can contain the statements on the kind and/or the metering quantities and/or the concentration of the washing or rinsing agent disposed in the container 41.
By means of the afore-described apparatus embodying the invention, it can be ensured that respectively proportionate metering quantities of appropriate washing or rinsing agents are added.
Since the control means 20 is informed which washing or rinsing agent is disposed in which of the containers 41 and how highly concentrated this is, erroneous operations and deficient or excessive meterings are avoidable. The information contained in the bar code label can, if they are of interest for the process data, be indicated after the reading operation as described in connection with Fig. 3. In the simplest case, this could be an indication of which supply receptable is to receive the liquid washing or rinsing agent disposed in the container. Devices can be provided in the apparatus, which are addressed by the control means 20 and serve to free only that supply receptacle which, according to the readout, is to be filled. For this purpose, appropriate closure elements can, for example, be provided at stub screw connections associated with the receptacles.
When a statement on the concentration of the washing or rinsing agent is contained in the bar code label, the control means 20 can automatically calculate from this the required quantity of the agent for each metering.
A data reader of like kind and co-operating with the bar code label can be employed in apparatus in which supply receptacles are fixedly built in and replenished from, for example, containers. In that case, the apparatus can be equipped with control means and be connected through a signal line and a liquid duct with the associated washing machine or dishwashing machine. It is expedient when the control means, with the use of process data from the machine transmitted by way of the signal line and also the read data on the concentration strength of the stored washing or rinsing agent, automatically calculates the required quantity of the agent and causes equipment built into the apparatus to meter and add the washing and rinsing agent or concentrates at the instants appropriate in the washing process.This avoids the possibility of erroneous setting of the concentrate strength by way of operating knobs on an operating panel after reading from the labelled container. Even an unintended resetting of the operating knobs, for example during the cleaning of the operating panel, could lead to such erroneous settings.
In the apparatus control panel 30 shown in Fig. 5, indications can be provided at the outside of the apparatus, at desired instants after insertion of agent containers or the replenishing of the agents, to the operator to show which agent is stored in the apparatus. This is of particular significance when the containers are removed from the household after replenishing. Moreover, the apparatus can overcome the difficulties involved in ensuring a clear association of the operating knobs with the reserve supplies.
The apparatus of Fig. 5 presupposes that the containers are accompanied by data carriers which are matched in their dimensions to equipment of the operating panel as will be described in the following. Such data carriers are insert cards 31, which are shown inserted in the operating panel 30 and mechanically readable data inscriptions of which can be so applied that, for example, they are not recognisable from outside. For this purpose, magnetically or electrically conductive or differently transparent regions can be provided. As is apparent from the card 32 protruding more than the other cards, for a unique mechanical associated of each card with an individual one of receiving openings 33, the cards and the openings can have shaped guide means which are mutually complementary.Lateral grooves 34, which co-operate with corresponding groove toothings in the receiving opening 33, are suitable as such guide means.
The cards 31 are insertable into the openings 33 of the panel as fas as an abutment behind the panel. The control of the apparatus is ready to function only when all of the cards abut the abutment. Otherwise, an indication, in the manner of an indication for an exhausted washing or rinsing agent reserve, can appear on the panel of the associated washing machine and the program prevented from starting in conjunction with automatic metering.
The data, provided on the inserted part of each card 31 and concerning the concentration of the stored washing or rinsing agent, is automatically communicated to the control means of the apparatus. This processes the data for the determination of the correct metering of the agent.
A further form of association of the correct card with the respective opening, apart from association by unique guide means shapes, is the provision of corresponding coloured markings on the cards and in the region of the openings. This facilitates visual association, which is additionally ensured by the mechanical association provided by the guide means.
The area 35 on the outwardly protruding part of the cards 31, 32 can be reserved for imprinting with a designation of the washing or rinsing agent.
As a result, the operator is informed about which agent is present in the supply receptable concerned. Moreover, these areas 35 are also suitable for free inscription, so that the operator can, for example, enter the replenishment date.
The operator then has the facility for checking the consumption of the individual washing or rinsing agent.
Arranged behind the operating panel 30 and in alignment with each card is a stroke device, for example a solenoid, a bimetallic strip or an expansion material container, which can be actuated in dependence on the agent in the associated receptacle falling below a certain level and which partially pushes out the associated card, as illustrated by the card 32. The operator is thereby given an indication of which receptacle lacks washing or rinsing agent and, by means of the printing on the card, can attend to replenishment of the receptacle by the appropriate agent.
Moreover, simultaneously with the triggering of the stroke device, a signal, which appears as an indication on the operating panel for the operator, can be transmitted to the washing machine or dishwashing machine. The washing or rinsing process then in progress continues, but subsequent processes with automatic metering can only be carried out, in a limited number, if the partly ejected card 32 is fully re-inserted. After completion of that process, the card can then be pushed back out by the stroke device. Through the need to effect a special operating manipulation before each washing operation, namely pushing in of the partly ejected card, the lack of washing and rinsing agent is repeatedly brought to the attention of the operator.
In the delivery state of the apparatus, blank insert cards can be enclosed, which contain no data about the agent concentration. However, printed on the cards is an indication of the kind of washing or rinsing agent to be added to the associated supply receptacle. These blank cards can be pushed into the receiving openings so that no further explanation need be given to the operator.
Insofar as the value of the washing or rinsing agent concentration is not stored volatilely, the control means 20 can compare the concentration value of a previously added agent with the corresponding value of a new agent, the latter value being derived from insert card or bar code label data read off by the data reader. If sufficient data is present for this purpose, the control means can decide whether the two agents are compatible with each other or whether, if these agents are brought together, a chemical reaction which would cause a disturbance to the operation of the apparatus might occur. Moreover, different concentrations of the previous and new agents can lead to erroneous calculations. In the aforementioned case and in similar cases, the user can be required, through an indication on the operating panel, to completely empty and clean the supply receptacle before adding the new agent.

Claims (30)

1. A method of effecting input of data provided on or in association with a washing or rinsing agent container into electronic control means of apparatus for storing, automatically metering and supplying such agent, the data comprising information concerning at least one of the kind, metering quantity and dose concentration of such agent and the method comprising the step of transferring such data by a data reader to the control means.
2. A method as claimed in claim 1, wherein the data is provided by a bar code label on the container and the step of transferring comprises reading the bar code by the data reader.
3. Apparatus for carrying out the method claimed in claim 1, comprising equipment for storing, automatically metering and supplying a washing or rinsing agent, electronic control means for controlling storage, metering and supply operation of such equipment, and a data reader which is connected at an output thereof to the control means and which is operable to read said data and to transfer the read data to the control means.
4. Apparatus as claimed in claim 3, comprising indicating means for providing an indication of metering data read by the reader.
5. Apparatus as claimed in either claim 3 of claim 4, comprising indicating means for designating a metering duct of the metering equipment for receipt of the content of such container after reading of the data.
6. Apparatus as claimed in either claim 3 or claim 4, comprising selector keys operable to determine a metering duct of the metering equipment for receipt of the content of such container after reading of the data.
7. Apparatus as claimed in either claim 5 or claim 6, comprising lock-out means to prevent introduction of the content of such container into any metering duct of the metering equipment other than the designated or determined duct.
8. Apparatus as claimed in any one of claims 3 to 7, the control means comprising a store for data transferred thereto, comparison means for comparing newly transferred data associated with a metering duct of the metering equipment with previously transferred data associated with that duct, and indicating means for indicating differences between the compared data.
9. Apparatus as claimed in claim 8, the difference indicating means being adapted to indicate differences signifying potential for chemical reaction with each other of two washing or rinsing agents respectively associated with the newly transferred data and the previously transferred data.
10. Apparatus as claimed in claim 8, the difference indicating means being adapted to indicate differences in dose concentrations of two washing or rinsing agents respectively associated with the newly transferred data and the previously transferred data.
11. Apparatus as claimed in claim 3, comprising locating means for locating a plurality of such containers in the apparatus, and connecting duct means for connecting the containers to a metering duct of the apparatus, the data reader being arranged in the region of the locating means.
12. Apparatus as claimed in claim 1 1, wherein the data region is disposed adjacent to a path of movement of the containers into rest positions in the apparatus.
13. Apparatus as claimed in claim 3, comprising an operating panel provided with openings for receipt of insert cards each carrying data associated with the content of a respective washing or rinsing agent container, the reader comprising a respective reading device arranged at each opening to read the data carried by a card received in that opening.
14. Apparatus as claimed in claim 13, comprising a respective detecting device associated with each opening for detection of a card fully inserted into that opening.
15. Apparatus as claimed in either claim 13 or claim 14, comprising a respective ejector associated with each opening and operable to eject a card from that opening.
16. Apparatus as claimed in claim 15, comprising means responsive to a predetermined extent of consumption of the washing or rinsing agent from each container to trigger ejection by the ejector of the associated insert card.
17. Apparatus as claimed in any one of claims 13 to 16, comprising guide means associated with each opening, each guide means differing in shape from the or each other guide means and being arranged to permit insertion into the associated opening of and only of an insert card having a guide portion of complementary shape.
18. Apparatus as claimed in any one of claims 13 to 17, wherein the panel is provided in the region of each opening with respective coloured marking, the colour of each marking being different from that of the or each other marking thereby to enable visual identification with a correspondingly coloured insert card.
19. Apparatus as claimed in any one of claims 13 to 18 in combination with a plurality of insert cards carrying data concerning the kind, but not the metering quantity or dose concentration, of an associated washing or rinsing agent.
20. Apparatus substantially as hereinbefore described with reference to Fig. 1 of the accompanying drawings.
21. Apparatus substantially as hereinbefore described with reference to Fig. 2 of the accompanying drawings.
22. Apparatus substantially as hereinbefore described with reference to Fig. 3 of the accompanying drawings.
23. Apparatus substantially as hereinbefore described with reference to Fig. 5 of the accompanying drawings.
24. A washing or rinsing agent container in combination with an insert card which carries data associated with the content of the container and which is adapted for insertion into one of the openings in the operating panel of apparatus as claimed in any one of claims 13 to 18 so as to enable reading of the data by the respective reading device.
25. A combination as claimed in claim 24, the card being supplied in packaging means accompanying the container.
26. A combination as claimed in claim 24, the card being removably attached to the body of the container.
27. A combination as claimed in claim 24, the card being removably attached to a closure of the container.
28. A combination as claimed in any one of claims 24 to 27, wherein the card comprises a first portion adapted to be received by said one opening and a second portion which projects out from the opening when the first portion is received therein, the card being provided on the second portion with a labelling zone.
29. A combination as claimed in claim 28, wherein the labelling zone carries a printed statement concerning the agent.
30. A combination as claimed in claim 28, wherein the labelling zone comprises a blank surface able to be marked with data.
GB08330028A 1982-11-16 1983-11-10 Control data input into metering and supply apparatus for washing and rinsing agents Expired GB2134078B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3242450 1982-11-16
DE19833303292 DE3303292A1 (en) 1982-11-16 1983-02-01 METHOD AND DEVICE FOR ENTERING DATA IN AN ELECTRONIC CONTROL DEVICE ABOUT LIQUID DETERGENT OR DETERGENT CONTAINED IN TRANSPORT CONTAINERS

Publications (3)

Publication Number Publication Date
GB8330028D0 GB8330028D0 (en) 1983-12-14
GB2134078A true GB2134078A (en) 1984-08-08
GB2134078B GB2134078B (en) 1986-01-08

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Application Number Title Priority Date Filing Date
GB08330028A Expired GB2134078B (en) 1982-11-16 1983-11-10 Control data input into metering and supply apparatus for washing and rinsing agents

Country Status (4)

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DE (1) DE3303292A1 (en)
FR (1) FR2536184B1 (en)
GB (1) GB2134078B (en)
IT (1) IT1166545B (en)

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US8266748B2 (en) 2008-07-01 2012-09-18 Whirlpool Corporation Apparatus and method for controlling bulk dispensing of wash aid by sensing wash aid concentration
US8268083B2 (en) 2002-12-20 2012-09-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Method and device for treating objects with at least one treatment agent in a household device, said household device, associated packaging and a dosing device
US8314678B2 (en) 2005-06-09 2012-11-20 Whirlpool Corporation Consumable holder with a cycle structure for an appliance
US8388695B2 (en) 2008-07-01 2013-03-05 Whirlpool Corporation Apparatus and method for controlling laundering cycle by sensing wash aid concentration
US8397328B2 (en) 2008-07-01 2013-03-19 Whirlpool Corporation Apparatus and method for controlling concentration of wash aid in wash liquid
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US9850618B2 (en) 2012-08-28 2017-12-26 Whirlpool Corporation Household appliance having a physical alteration element
US9861258B2 (en) 2013-03-15 2018-01-09 Whirlpool Corporation Dishwasher
US9920468B2 (en) 2008-07-01 2018-03-20 Whirlpool Corporation Household cleaning appliance with a non-bulk dispensing system convertible to a household cleaning appliance with a bulk dispensing system
US9970148B2 (en) 2012-08-28 2018-05-15 Whirlpool Corporation Household appliance having a physical alteration element
US10100455B2 (en) 2008-07-01 2018-10-16 Whirlpool Corporation Method of indicating operational information for a bulk dispensing system
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Also Published As

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DE3303292C2 (en) 1990-04-19
FR2536184B1 (en) 1987-12-24
FR2536184A1 (en) 1984-05-18
GB8330028D0 (en) 1983-12-14
GB2134078B (en) 1986-01-08
IT1166545B (en) 1987-05-06
IT8323712A0 (en) 1983-11-15
DE3303292A1 (en) 1984-05-17

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