EP0487474A1 - Procédé pour transporter du liquide dans une machine à laver la vaisselle et dispositif pour réaliser le procédé - Google Patents

Procédé pour transporter du liquide dans une machine à laver la vaisselle et dispositif pour réaliser le procédé Download PDF

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Publication number
EP0487474A1
EP0487474A1 EP91850279A EP91850279A EP0487474A1 EP 0487474 A1 EP0487474 A1 EP 0487474A1 EP 91850279 A EP91850279 A EP 91850279A EP 91850279 A EP91850279 A EP 91850279A EP 0487474 A1 EP0487474 A1 EP 0487474A1
Authority
EP
European Patent Office
Prior art keywords
liquid
fog
dish
dishwasher
tub
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Withdrawn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
EP91850279A
Other languages
German (de)
English (en)
Inventor
Douglas H. Mcqueen
Lars Jacobson
Bertil Larsson
Lars-Gunnar Wemlerth
Johans Lindholm
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 AB
Original Assignee
Electrolux AB
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 AB filed Critical Electrolux AB
Publication of EP0487474A1 publication Critical patent/EP0487474A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
    • 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
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
    • 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
    • A47L15/0089—Washing or rinsing machines for crockery or tableware of small size, e.g. portable mini dishwashers for small kitchens, office kitchens, boats, recreational vehicles
    • 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
    • A47L15/4219—Water recirculation
    • 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
    • A47L2601/00—Washing methods characterised by the use of a particular treatment
    • A47L2601/17—Sonic or ultrasonic waves

Definitions

  • This invention relates to a method and a device for transporting liquid in a dishwasher from a liquid reservoir to the dish which is placed in a tub in the machine.
  • the purpose of this invention is to eliminate the abovementioned drawbacks and to create a new washing method and a device working with very small quantities of water and/or detergents and with very low energy consumption, the process being mainly silent. This is achieved by means of a method and a device having the characteristics mentioned in the claims.
  • the method can sometimes be used as a complete washing process but is preferably used as a part of a conventional dishwashing process, for instance as an introductory step to the process or as a method for dosing detergents in particular biologically active substances on the dish.
  • FIG. 1 is a perspective view of a first embodiment of a dishwasher provided with a device according to the invention wheras Fig. 2 is a section on the line II-II in Fig. 3, Fig. 3 is a side view of the device according to Fig. 2 and Fig. 4 is a diagrammatic section of a second embodiment of a dishwasher according to the invention.
  • the method according to the invention means that transportation of liquid in a tub is achieved by creating a liquid fog which is spred to the dish and is condensed on it thereby dissolving and rinsing the dirt from the dish.
  • the liquid fog is preferably generated by ultrasonic means from a liquid consisting, for instance, of chemicals and/or water, the chemicals being suitable for dissolving dirt during the cleaning process.
  • the chemicals preferably comprise tensides, enzyms, other proteins and/or other bioactive substances.
  • the liquid drops in the fog created can be regarded as "cold" - which is important for biologically active substances in order to maintain their activitysince the liquid is never heated to the boiling point which is the case when vaporizing.
  • a piezo-ceramic available on the market is placed below the liquid surface.
  • When activating the piezo-ceramic which is made by connecting voltage to it ultra-sound is generated which creates fog drops which, compared to steam drops, have a uniform diameter.
  • the size of the fog drops can be predetermined since there is an unambiguous, inversely proportional relationship between the average diameter of the drops and the frequency of the ultra-sound.
  • a suitable drop diameter is within the interval 0.5 - 25 micron. It is, of course, possible to generate the fog also in other ways, for instance, with conventional aerosol methods.
  • the substances in the liquid in certain cases, for instance with regard to proteins and enzyms, can denaturate at high temperatures, i.e. in the interval 40 - 100°C, it is important that the fog is so cold that the substances still are active when the fog condenses on the dish. Since the efficiency of said fog creator increases with increased liquid temperature it is, however, desireable to use an as warm liquid as possible during the generation of fog.
  • the fog creation can be rendered even more effective if a suitable flow pattern is achieved in the liquid around and above the ultra-sound transmitter.
  • the fog creator can be provided with a pump in order to achieve a suitable auxiliary flow.
  • the liquid can be pumped so fast that a jet flows out from the device. This flow can thus be directed towards the dish thereby removing the dirt on it.
  • a pipe or nozzle has at the same time a focusing influence on the ultrasonic field, which means an increased efficiency of the fog generator. Since the fog drops created are electrically loaded, an electrostatic field which is placed in the fog can be arranged to direct the drops to the dish which further increases the efficiency of the method.
  • a dishwasher 10 having an open door 11 normally covering an opening through which the dish 12 can be inserted on baskets 13 into a tub 14.
  • liquid is as usual sprayed on the dish 12 by means of rotating washarms 15.
  • the dishwasher is provided with a fog generator 16 having a standing pipe 17, the upper end 18 of which is open and the lower end 19 of which has a piezo-ceramic 20 to which voltage can be transferred by means of a cable 21.
  • the pipe 17 communicates with an annular chamber 22 which surrounds a liquid supply pipe 23 and which together with the lower part of the pipe 17 forms a reservoir for the liquid which preferably comprises water and a detergent.
  • the liquid is in a matter not shown filled through the pipe 23 and flows through a hole 24 into the chamber 22.
  • the dish 12 is as usual placed on a basket 13 in the tub 14.
  • Water is taken into a container 25 from an inlet pipe 26 via a valve 27 which is operated by a control unit in the machine.
  • the container 25 is placed between the tub 14 and a hood 28 surrounding the machine and has at its bottom a piezo-ceramic 20 which via an electric conductor 29 is connected to equipment 30 supplying the piezo-ceramic with voltage.
  • the container 25 and the tub 14 are provided with an opening 31 through which liquid and fog can flow from the container into the tub.
  • This opening serves as an overflow device for the liquid entering the container and maintains a constant distance between the liquid surface in the container and the piezo-ceramic thereby creting a maximum amount of fog.
  • the machine is also provided with a receptacle 32 for a detergent, preferably a biologically active substance, which is filled through a refill opening 33 into the receptacle.
  • a receptacle 32 for a detergent preferably a biologically active substance
  • the receptacle At the bottom of the receptacle there is an outlet pipe 34 through which the detergent flows to a dispenser cylinder 35 from which the detergent is transferred via a pipe 36 to the container 25 where it is mixed with the water in the container.
  • a dispenser cylinder 35 from which the detergent is transferred via a pipe 36 to the container 25 where it is mixed with the water in the container.
  • the amount of biologically active substances needed for a dishwash operation according to the invention is very low and is less than 5 g.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
EP91850279A 1990-11-23 1991-11-13 Procédé pour transporter du liquide dans une machine à laver la vaisselle et dispositif pour réaliser le procédé Withdrawn EP0487474A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9003730A SE9003730D0 (sv) 1990-11-23 1990-11-23 Saett att transportera vaetska fraan en vaetskesamling till en yta paa ett foeremaal
SE9003730 1990-11-23

Publications (1)

Publication Number Publication Date
EP0487474A1 true EP0487474A1 (fr) 1992-05-27

Family

ID=20380987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91850279A Withdrawn EP0487474A1 (fr) 1990-11-23 1991-11-13 Procédé pour transporter du liquide dans une machine à laver la vaisselle et dispositif pour réaliser le procédé

Country Status (3)

Country Link
EP (1) EP0487474A1 (fr)
JP (1) JPH05184511A (fr)
SE (1) SE9003730D0 (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996009790A1 (fr) * 1994-09-27 1996-04-04 Henkel-Ecolab Gmbh & Co. Ohg Procede de lavage de vaisselle dans des lave-vaisselle a usage professionnel et lave-vaisselle approprie a la mise en oeuvre dudit procede
EP1523926A2 (fr) 2003-10-15 2005-04-20 Matsushita Electric Industrial Co., Ltd. Lave-vaisselle
WO2005063109A1 (fr) * 2003-12-23 2005-07-14 BSH Bosch und Siemens Hausgeräte GmbH Lave-vaisselle pouvant utiliser de l'ozone
EP1586263A2 (fr) 2004-04-12 2005-10-19 Matsushita Electric Industrial Co., Ltd. Procédé de nettoyage et lave-vaisselle utilisant ce procédé
EP1611831A2 (fr) * 2004-06-04 2006-01-04 Matsushita Electric Industrial Co., Ltd. Nébuliseur et lave-vaisselle ou machine à laver équipé d'un tel nébuliseur
KR100764333B1 (ko) * 2004-04-05 2007-10-05 마츠시타 덴끼 산교 가부시키가이샤 세정 장치와 이 세정 장치를 구비한 식기 세척기
CN100355504C (zh) * 2004-06-04 2007-12-19 松下电器产业株式会社 雾发生装置、餐具清洗机及洗衣机
DE102006055345A1 (de) * 2006-11-23 2008-05-29 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspüler mit einem System zur Zerstäubung von Spülflüssigkeit und Verfahren zum Betrieb desselben
EP1935312A2 (fr) 2006-12-22 2008-06-25 BSH Bosch und Siemens Hausgeräte GmbH Lave-vaisselle, en particulier lave-vaisselle ménager, doté d'un dispositif d'évacuation de saletés amélioré
KR100841857B1 (ko) 2006-07-14 2008-06-27 마츠시타 덴끼 산교 가부시키가이샤 무화 장치 및 무화 장치를 구비한 식기 세척기
WO2010007049A1 (fr) * 2008-07-15 2010-01-21 Henkel Ag & Co. Kgaa Système de dosage à libération d'une préparation dans la phase gazeuse
ITRN20080065A1 (it) * 2008-12-22 2010-06-23 Indesit Co Spa Macchina e metodo di lavaggio.
EP2201883A1 (fr) 2008-12-17 2010-06-30 Candy S.p.A. Lave-vaisselle avec nébulisateur et procédé de traitement de la vaisselle
CN101254085B (zh) * 2004-04-09 2011-07-27 松下电器产业株式会社 餐具清洗机
US7988789B2 (en) 2008-10-09 2011-08-02 Whirlpool Corporation System and method for low temperature hydration of food soils
GB2501502A (en) * 2012-04-25 2013-10-30 Reckitt & Colman Overseas A method of cleaning tableware in a dishwasher
WO2014023579A1 (fr) * 2012-08-07 2014-02-13 BSH Bosch und Siemens Hausgeräte GmbH Machine à laver équipée d'un dispositif de production de gouttes d'eau, et procédé d'utilisation de cette machine
CN109306604A (zh) * 2017-07-27 2019-02-05 青岛海尔洗衣机有限公司 水雾形成方法、家用电器用水雾形成装置及家用电器
EP3868274A1 (fr) 2016-04-29 2021-08-25 Reckitt Benckiser Finish B.V. Nouveau lave-vaisselle et procédé
US11337579B2 (en) 2015-04-29 2022-05-24 Reckitt Benckiser (Brands) Limited Domestic dishwasher and dishwashing method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3979374B2 (ja) * 2003-10-15 2007-09-19 松下電器産業株式会社 霧化発生装置を備えた食器洗い機
JP4023453B2 (ja) * 2004-02-16 2007-12-19 松下電器産業株式会社 食器洗い機
JP4075817B2 (ja) * 2004-02-19 2008-04-16 松下電器産業株式会社 食器洗い機
JP4075816B2 (ja) * 2004-02-19 2008-04-16 松下電器産業株式会社 食器洗い機
JP2005237537A (ja) * 2004-02-25 2005-09-08 Matsushita Electric Ind Co Ltd 食器洗い機
JP4734916B2 (ja) * 2004-12-24 2011-07-27 パナソニック株式会社 食器洗い機
JP4710392B2 (ja) * 2005-04-19 2011-06-29 パナソニック株式会社 食器洗い機
JP4594968B2 (ja) * 2007-08-23 2010-12-08 パナソニック株式会社 食器洗浄機

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2664094A (en) * 1947-08-01 1953-12-29 Spragins John Harris Dishwasher
US2910391A (en) * 1954-07-28 1959-10-27 Ohio Commw Eng Co Method of applying aerosol detergent fog
FR1506582A (fr) * 1966-11-10 1967-12-22 Procédé de lavage automatique pour machines à laver la vaisselle
DE2422847A1 (de) * 1974-05-10 1975-11-20 Heinz G Dipl Ing Walter Verfahren zum reinigen von verschmutztem geschirr o.dgl.
FR2326172A1 (fr) * 1975-10-03 1977-04-29 Bienvenu Jean Louis Procede de nettoyage d'objets
EP0291713A1 (fr) * 1987-05-20 1988-11-23 Bosch-Siemens HausgerÀ¤te GmbH Procédé de lavage de vaisselle et lave-vaisselle domestique utilisant ledit procédé
WO1990006817A1 (fr) * 1988-12-21 1990-06-28 Grünbeck Wasseraufbereitung GmbH Generateur d'ultrasons et son utilisation
EP0282214B1 (fr) * 1987-03-07 1991-10-09 Diversey Corporation Procédé de lavage de vaiselle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2664094A (en) * 1947-08-01 1953-12-29 Spragins John Harris Dishwasher
US2910391A (en) * 1954-07-28 1959-10-27 Ohio Commw Eng Co Method of applying aerosol detergent fog
FR1506582A (fr) * 1966-11-10 1967-12-22 Procédé de lavage automatique pour machines à laver la vaisselle
DE2422847A1 (de) * 1974-05-10 1975-11-20 Heinz G Dipl Ing Walter Verfahren zum reinigen von verschmutztem geschirr o.dgl.
FR2326172A1 (fr) * 1975-10-03 1977-04-29 Bienvenu Jean Louis Procede de nettoyage d'objets
EP0282214B1 (fr) * 1987-03-07 1991-10-09 Diversey Corporation Procédé de lavage de vaiselle
EP0291713A1 (fr) * 1987-05-20 1988-11-23 Bosch-Siemens HausgerÀ¤te GmbH Procédé de lavage de vaisselle et lave-vaisselle domestique utilisant ledit procédé
WO1990006817A1 (fr) * 1988-12-21 1990-06-28 Grünbeck Wasseraufbereitung GmbH Generateur d'ultrasons et son utilisation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 150 (C-233)12 July 1984 & JP-A-59 055 367 ( TDK KK ) 30 March 1984 *

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996009790A1 (fr) * 1994-09-27 1996-04-04 Henkel-Ecolab Gmbh & Co. Ohg Procede de lavage de vaisselle dans des lave-vaisselle a usage professionnel et lave-vaisselle approprie a la mise en oeuvre dudit procede
EP1523926A3 (fr) * 2003-10-15 2007-12-26 Matsushita Electric Industrial Co., Ltd. Lave-vaisselle
EP1523926A2 (fr) 2003-10-15 2005-04-20 Matsushita Electric Industrial Co., Ltd. Lave-vaisselle
US7426931B2 (en) 2003-10-15 2008-09-23 Matsushita Electric Industrial Co., Ltd. Dishwasher
WO2005063109A1 (fr) * 2003-12-23 2005-07-14 BSH Bosch und Siemens Hausgeräte GmbH Lave-vaisselle pouvant utiliser de l'ozone
CN1897861B (zh) * 2003-12-23 2011-07-06 Bsh博施及西门子家用器具有限公司 应用臭氧的餐具洗涤机
KR100764333B1 (ko) * 2004-04-05 2007-10-05 마츠시타 덴끼 산교 가부시키가이샤 세정 장치와 이 세정 장치를 구비한 식기 세척기
CN101254085B (zh) * 2004-04-09 2011-07-27 松下电器产业株式会社 餐具清洗机
EP2127588A1 (fr) * 2004-04-12 2009-12-02 Panasonic Corporation Lave-vaisselle
EP1586263A3 (fr) * 2004-04-12 2007-12-05 Matsushita Electric Industrial Co., Ltd. Procédé de nettoyage et lave-vaisselle utilisant ce procédé
EP1586263A2 (fr) 2004-04-12 2005-10-19 Matsushita Electric Industrial Co., Ltd. Procédé de nettoyage et lave-vaisselle utilisant ce procédé
EP1938739A3 (fr) * 2004-04-12 2008-07-09 Matsushita Electric Industrial Co., Ltd. Procédé de nettoyage et lave-vaisselle l'utilisant
US7699938B2 (en) 2004-04-12 2010-04-20 Panasonic Corporation Cleaning method and dishwasher using same
CN100355504C (zh) * 2004-06-04 2007-12-19 松下电器产业株式会社 雾发生装置、餐具清洗机及洗衣机
EP1611831A2 (fr) * 2004-06-04 2006-01-04 Matsushita Electric Industrial Co., Ltd. Nébuliseur et lave-vaisselle ou machine à laver équipé d'un tel nébuliseur
US7828909B2 (en) 2004-06-04 2010-11-09 Panasonic Corporation Mist generating device, and dishwasher and washing machine using same
EP1611831A3 (fr) * 2004-06-04 2007-02-28 Matsushita Electric Industrial Co., Ltd. Nébuliseur et lave-vaisselle ou machine à laver équipé d'un tel nébuliseur
KR100841857B1 (ko) 2006-07-14 2008-06-27 마츠시타 덴끼 산교 가부시키가이샤 무화 장치 및 무화 장치를 구비한 식기 세척기
CN101528103B (zh) * 2006-11-23 2013-02-06 Bsh博世和西门子家用器具有限公司 具有用于雾化洗碗液的系统的洗碗机及其操作方法
US20100089425A1 (en) * 2006-11-23 2010-04-15 Bsh Bosch Und Siemens Hausgerate Gmbh Dish washer having a system for atomizing dishwashing liquid and method for the operation thereof
DE102006055345A1 (de) * 2006-11-23 2008-05-29 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspüler mit einem System zur Zerstäubung von Spülflüssigkeit und Verfahren zum Betrieb desselben
WO2008061876A1 (fr) * 2006-11-23 2008-05-29 BSH Bosch und Siemens Hausgeräte GmbH Lave-vaisselle avec un système pour pulvériser du liquide de lavage, et son procédé d'exploitation
EP1935312A3 (fr) * 2006-12-22 2009-03-11 BSH Bosch und Siemens Hausgeräte GmbH Lave-vaisselle, en particulier lave-vaisselle ménager, doté d'un dispositif d'évacuation de saletés amélioré
DE102006061081A1 (de) * 2006-12-22 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine, insbesondere Haushalts-Geschirrspülmaschine, mit einer Einrichtung zum verbesserten Schmutzabtrag
EP1935312A2 (fr) 2006-12-22 2008-06-25 BSH Bosch und Siemens Hausgeräte GmbH Lave-vaisselle, en particulier lave-vaisselle ménager, doté d'un dispositif d'évacuation de saletés amélioré
WO2010007049A1 (fr) * 2008-07-15 2010-01-21 Henkel Ag & Co. Kgaa Système de dosage à libération d'une préparation dans la phase gazeuse
US7988789B2 (en) 2008-10-09 2011-08-02 Whirlpool Corporation System and method for low temperature hydration of food soils
EP2201883A1 (fr) 2008-12-17 2010-06-30 Candy S.p.A. Lave-vaisselle avec nébulisateur et procédé de traitement de la vaisselle
WO2010073085A1 (fr) * 2008-12-22 2010-07-01 Indesit Company S.P.A. Appareil et procédé de lavage
ITRN20080065A1 (it) * 2008-12-22 2010-06-23 Indesit Co Spa Macchina e metodo di lavaggio.
GB2501502A (en) * 2012-04-25 2013-10-30 Reckitt & Colman Overseas A method of cleaning tableware in a dishwasher
WO2013160661A1 (fr) * 2012-04-25 2013-10-31 Reckitt & Colman (Overseas) Limited Technique de lavage améliorée au sein d'un lave-vaisselle automatique
WO2014023579A1 (fr) * 2012-08-07 2014-02-13 BSH Bosch und Siemens Hausgeräte GmbH Machine à laver équipée d'un dispositif de production de gouttes d'eau, et procédé d'utilisation de cette machine
CN104781462A (zh) * 2012-08-07 2015-07-15 Bsh博世和西门子家用电器有限公司 具有用于产生水滴的装置的洗衣机以及用于其运行的方法
US9487902B2 (en) 2012-08-07 2016-11-08 BSH Hausgeräte GmbH Washing machine having a device for producing water drops and method for operating said washing machine
RU2605382C2 (ru) * 2012-08-07 2016-12-20 Всх Хаусгерете Гмбх Стиральная машина с устройством для получения водяных капель и способ эксплуатации такой стиральной машины
US11337579B2 (en) 2015-04-29 2022-05-24 Reckitt Benckiser (Brands) Limited Domestic dishwasher and dishwashing method
EP3868274A1 (fr) 2016-04-29 2021-08-25 Reckitt Benckiser Finish B.V. Nouveau lave-vaisselle et procédé
CN109306604A (zh) * 2017-07-27 2019-02-05 青岛海尔洗衣机有限公司 水雾形成方法、家用电器用水雾形成装置及家用电器

Also Published As

Publication number Publication date
SE9003730D0 (sv) 1990-11-23
JPH05184511A (ja) 1993-07-27

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