WO2004023967A1 - Procede et dispositif servant a nettoyer des articles - Google Patents

Procede et dispositif servant a nettoyer des articles Download PDF

Info

Publication number
WO2004023967A1
WO2004023967A1 PCT/IB2003/003959 IB0303959W WO2004023967A1 WO 2004023967 A1 WO2004023967 A1 WO 2004023967A1 IB 0303959 W IB0303959 W IB 0303959W WO 2004023967 A1 WO2004023967 A1 WO 2004023967A1
Authority
WO
WIPO (PCT)
Prior art keywords
receptacle
water
reservoir
articles
cleaning
Prior art date
Application number
PCT/IB2003/003959
Other languages
English (en)
Inventor
Anne TOPHAM
Anneline LUBBE
Original Assignee
Majestic Enterprises Cc
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 Majestic Enterprises Cc filed Critical Majestic Enterprises Cc
Priority to AU2003264920A priority Critical patent/AU2003264920A1/en
Publication of WO2004023967A1 publication Critical patent/WO2004023967A1/fr

Links

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
    • A47L15/0089—Washing or rinsing machines for crockery or tableware of small size, e.g. portable mini dishwashers for small kitchens, office kitchens, boats, recreational vehicles

Definitions

  • THIS INVENTION relates to the cleaning of articles with the use of moisture and heat, such as the washing of baby accessories, dishes, or the like, by way of automated washing and/or autoclaving.
  • the invention relates to a method and apparatus for cleaning articles.
  • Devices for automated washing of dishes and/or baby bottles and accessories in a number of cleaning cycles, each including the use of water from a pressurised supply such as water mains, heating the water if required, using the water in cleaning and/or rinsing cycles, and discarding the used water. Further devices are known for sterilising articles by exposing the articles to elevated temperatures and pressures, in an autoclave.
  • a method of cleaning articles in an apparatus comprising the steps of: providing water in a reservoir of the apparatus; filling a receptacle of the apparatus at least in part, by allowing a predetermined quantity of water to flow under gravity from the reservoir into the receptacle; cleaning articles with the water from the receptacle in a cleaning cycle; and draining the water from the receptacle; wherein the water flows from the reservoir into the receptacle through a discharge opening of the reservoir, until the water in the receptacle reaches a level at which it blocks a vent inlet of the reservoir, thus preventing air from entering the reservoir, so that the water flow through the discharge opening stops, wherein the discharge opening and vent of the reservoir remain open throughout the method, and wherein the rate at which water is drained from the receptacle is substantially higher than the rate at which water flows from the reservoir into the receptacle.
  • the steps of filling the receptacle, cleaning the articles, and draining the water may be repeated in sequence, and may be repeated until the water in the reservoir is depleted.
  • the water in the receptacle may be heated by a heating element disposed in the receptacle, that constantly provides heat to the contents of the receptacle, and the water may be drained from the receptacle, when it reaches a predetermined temperature, or after a predetermined period of time has elapsed.
  • a detergent may be provided in the receptacle, so that at least one cleaning cycle is a wash cycle and the method may include no addition of detergent water in the receptacle after the wash cycle, so that subsequent cleaning cycles are rinse cycles.
  • the method may include a further step of heating the contents of the receptacle after the water has been drained from the receptacle, to dry the cleaned articles, and the step of heating the contents of the receptacle may include pressurising a cavity, formed at least in part by the receptacle, with the heated contents of the receptacle, so that cleaned articles in the cavity may be sterilised in autoclave-fashion.
  • the step of cleaning articles with water from the receptacle may include allowing water to drain from the cleaned articles into the receptacle, thus recycling the water in the receptacle.
  • the method may include the prior step of removing the reservoir from the apparatus, filling it at last in part with water, and returning it to the apparatus.
  • an apparatus for cleaning articles including: a water reservoir defining at least one opening in communication with a cavity of the reservoir, to serve as a discharge opening and as a vent inlet; a receptacle, disposed operatively below the reservoir, with the discharge opening and vent inlet disposed within the receptacle; cleaning means for cleaning the articles, using water from the receptacle; and draining means for draining water from the receptacle; wherein the cavity of the reservoir can be sealed, except for the discharge opening and vent inlet, and wherein the draining means is configured to drain water from the receptacle at a substantially higher rate, than that at which water can flow from the reservoir cavity, through the discharge opening, into the receptacle.
  • the reservoir may be removable from the apparatus, and may define a charge opening, through which the cavity of the reservoir may be filled at least in part, with water.
  • the apparatus may include a heating element disposed in the receptacle, to heat the contents of the receptacle, and the draining means may be configured to drain water from the receptacle, when the water reaches a predetermined temperature.
  • the draining means may include a temperature activated draining valve, which may be in thermal contact with the inside of the receptacle, and which may be configured to be closed below the predetermined temperature, and to be open above the predetermined temperature to allow water from the receptacle to be drained.
  • a temperature activated draining valve which may be in thermal contact with the inside of the receptacle, and which may be configured to be closed below the predetermined temperature, and to be open above the predetermined temperature to allow water from the receptacle to be drained.
  • the heating element may be configured to heat the contents of the receptacle consistently, while the apparatus is in operation, and may be configured to switch off once the contents of the receptacle reaches a predetermined temperature.
  • the apparatus may include support means, for supporting the articles to be cleaned, above the receptacle.
  • the apparatus may include a housing, defining a wash cavity, including the inside of the receptacle, with the support means disposed within the wash cavity, and the wash cavity may be sealable, to withstand a predetermined internal pressure, when the wash cavity is pressurised in autoclave-fashion.
  • the apparatus may include a removable discharge vessel, into which water from the receptacle may be drained.
  • Figure 1 shows a diagram of an apparatus in accordance with the invention, illustrating the step of filling a receptacle of the apparatus
  • Figure 2 shows a diagram of the apparatus of Figure 1 , illustrating the step of cleaning articles
  • Figure 3 shows a diagram of the apparatus of Figure 1 , illustrating the step of draining water from the receptacle
  • Figure 4 shows a diagram of the apparatus of Figure 1 , illustrating the step of drying articles in the apparatus
  • Figure 5 shows a sectional side view of an apparatus in accordance with a first embodiment of the invention
  • Figure 6 shows a top plan view of the apparatus of Figure 5, with its lid and reservoir removed;
  • Figure 7 shows a top plan view of the apparatus of Figure 5, with its lid removed, and loaded with articles to be cleaned;
  • Figure 8 shows a side elevational view of the apparatus of Figure 5, loaded with articles to be cleaned
  • Figure 9 shows a three-dimensional schematic view of an apparatus in accordance with a second embodiment of the invention.
  • Figure 10 shows a top plan schematic view of the apparatus of Figure 9, loaded with articles to be cleaned.
  • an apparatus in accordance with the invention is generally indicated by reference numeral 10.
  • the apparatus 10 includes an outer housing 12 defining a sealed internal wash cavity 14.
  • a reservoir 16 is removably held within the housing 12, adjacent the wash cavity 14 and a receptacle 18 is defined within the wash cavity, below the reservoir.
  • a heating element 20 is disposed within the receptacle 18, to be in thermal contact with contents of the receptacle, and a discharge of the receptacle is in flow communication with an inlet of a pump 22.
  • the discharge of the pump 22 is in flow communication with a manifold 24 defining a number of nozzles (not shown) directed upwardly into the wash cavity 14.
  • the discharge of the pump is also connected to a valve 26, selectively closing off a drain discharge 28.
  • an article to be cleaned in the apparatus 10 is shown in the form of an inverted bottle 30, supported on support means in the form of a support frame 38, and water is shown by diagonal hatching.
  • the pump 22 and manifold 24, together comprise cleaning means for cleaning the bottle 30 using water from the receptacle 18, while the pump, valve 26 and drain discharge 28, together comprise draining means for draining water from the receptacle.
  • the reservoir 16 defines an upper charge opening 32, sealable with a cap 34, and a lower opening 36, serving as a discharge opening and vent. Both the openings 32,36 are in flow communication with the internal cavity of the reservoir 16, and the lower opening 36 is disposed within the receptacle 18, when the reservoir is in position within the apparatus 10.
  • the reservoir 16 is removed from the apparatus 10 and is filled, at least in part, with water through the upper opening 32, while the lower opening 36 is held closed by hand, or is temporarily sealed in a suitable way.
  • the cap 34 is sealably fitted to the upper opening 32 and the reservoir 16 is returned to its position within the apparatus 10 with the lower opening 36 open.
  • the reservoir 16 can also be filled with water via the lower opening 36, with the reservoir in an inverted orientation, or can be filled by other suitable means, such as a closable water supply pipe leading into the reservoir cavity, as long as the reservoir is sealed afterwards, except for the lower opening 36.
  • water flows under gravity from the reservoir 16 through the lower opening 36, into the receptacle, until the water level in the receptacle reaches a level slightly higher than the opening 36, as shown in Figure 1 of the drawings, in which the water in the receptacle blocks the opening 36, thus preventing air from entering the reservoir.
  • a quantity of detergent is placed in the receptacle 18 and electrical power is provided to the heating element 20 and pump 22.
  • the water in the receptacle 18 is heated continuously by the heating element 20, is pumped by the pump 22 via the manifold 24, and is sprayed onto the bottle.
  • the water runs off from the bottle 30 and is recycled by draining back into the receptacle 18 under gravity, to be heated further and used again to clean the bottle.
  • Water draining to the receptacle 18 passes through a screen 52, to remove solids from the water, that may have been washed from the bottle 30.
  • the detergent is dissolved in the water in the receptacle 18 during this cleaning cycle and assists in cleaning the bottle 30.
  • the valve 26 is closed during this cleaning cycle.
  • valve 26 is opened.
  • the valve 26 is temperature activated and is in thermal contact with the water flowing from the discharge of the pump 22.
  • the valve 26 may for instance be opened by a bi-metallic element, or other temperature sensitive actuator, or may be actuated by a servo, connected to a temperature sensor, or the like.
  • the pump 22 continues running, so that the water from the receptacle 18 is drained by being pumped through the valve 26 and is discharged via the drain discharge 28.
  • the water is prevented by gravity, from flowing upwards to the manifold 24.
  • the draining of water from the receptacle 18 causes the water level in the receptacle to fall, thus allowing air to enter the lower opening 36 of the reservoir 16, so that water can flow from the reservoir into the receptacle, but the rate at which water is drained from the receptacle is substantially higher, e.g. about ten times higher, than the rate at which water can flow from the reservoir to the receptacle, so that the water level in the receptacle drops rapidly.
  • the colder water that flows into the receptacle from the reservoir 16 and is pumped to the valve 26 causes a lowering of the temperature of water in thermal contact with the valve, and causes it to close once a predetermined temperature has been reached, by operation of the same actuating means that opened the valve when the water reached a predetermined temperature.
  • the valve 26 is configured to open at a higher temperature than that at which it closes, to provide for a degree of hysteresis.
  • heating element 20 and pump 22 remain in continuous operation during the repeated cycles as described with reference to Figures 1 to 3 of the drawings.
  • detergent was only added to the receptacle 18 when the receptacle was filled with water before the first cleaning cycle, and the detergent was dissolved in the water and drained from the receptacle during the first cleaning cycle. In each subsequent cleaning cycle, only water entered the receptacle 18 and was used to clean the bottle 30, so that the bottle was cleaned in the first cycle in a wash cycle, and thereafter in a succession of rinse cycles.
  • the heating element and pump are automatically switched off and the cleaning process in accordance with the invention is complete.
  • the housing 12 can be opened and the cleaned and sterilised bottle 30 can be removed.
  • valve 26 and/or of the heating element 20 can be actuated by a cam or similar mechanical timing device driven by rotation of the pump 22 or the manifold 24, if it is configured to rotate, or the like, to be switched on and off after predetermined periods of time have elapsed.
  • the manifold 24 can be driven to rotate as a result of angular orientation of its nozzles, by reduction gearing from the pump 22, or the like.
  • FIG. 5 to 8 of the drawings an apparatus 10.1 in accordance with a first embodiment of the invention, is shown with components similar to those shown diagrammatically in Figures 1 to 4 of the drawings, shown by like reference numerals.
  • the apparatus 10.1 includes a transparent housing 12, allowing articles to be cleaned, in the form of inverted bottles 30 and bottle accessories 40, to be seen through the housing in Figure 8 of the drawings.
  • the housing 12 includes a hingedly mounted lid 48, allowing easy access to the wash cavity 14.
  • the manifold 24 of the apparatus 10.1 is rotatably mounted, to rotate when water enters it from the pump 22, as a result of an angular orientation of its nozzles.
  • a filler valve 50 is provided at the lower opening 36 of the reservoir 16, which closes when the reservoir is removed from the apparatus 10.1 , to fill it with water.
  • the reservoir 16 is fitted with an ion exchange gel 46, for purifying and/or softening water flowing from the reservoir into the receptacle 18, thus reducing the need for wash salts or similar detergent additives.
  • the apparatus 10.1 includes a removable discharge vessel 42, into which water is discharged from the drain discharge 28.
  • the discharge vessel 42 is large enough to capture all the water discharged from the drain discharge 28 throughout the cleaning process, so that it can conveniently be removed from the apparatus 10.1 after the cleaning process has been completed, and can be emptied, e.g. into a sink, drain, water closet, or the like.
  • FIG. 9 an apparatus 10.2 in accordance with a second embodiment of the invention, is shown with components similar to those shown diagrammatically in Figures 1 to 4 of the drawings, shown by like reference numerals.
  • the apparatus 10.2 includes a housing 12 of a substantially square outline in top plan view, larger in size than the housing shown in Figures 5 to 8 of the drawings, allowing articles in the form of plates 44, and the like, to be cleaned in the apparatus. Thus rendering the apparatus 10.2 usable as a domestic dishwasher.
  • the housing 12, reservoir 16, manifold 24, cap 34, support frame 38, discharge vessel 42, and many parts of the other components of the apparatus 10 can be made of suitable plastics materials, that are light in weight and low in cost.
  • the invention illustrated holds the advantages of simplicity and low cost of manufacture and operation, in that the apparatus 10 has a low water and electricity consumption as a result of the recycling of water in the receptacle 18, in that the apparatus need neither be connected to a supply of water such as water mains, nor to a drain, in that few automated operations are required for one method step to follow on another, etc.
  • the invention illustrated holds the further advantage that the apparatus 10 is capable of use as a portable dishwasher, bottle washer and/or autoclave, with no required adjustments, although the apparatus can be designed for a particular use, by altering the size of the reservoir 16, wash cavity 14, adjusting the predetermined temperatures at which the valve 26 opens and closes, etc.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)

Abstract

Procédé et dispositif (10) servant à nettoyer des articles (30, 40) à l'intérieur d'une cavité de lavage (14). Un réservoir (16) est rempli d'eau dont une quantité s'écoule sous l'effet de la gravité dans un réceptacle (18), jusqu'à ce que le niveau de l'eau ferme une ouverture (36) du réservoir (16). L'eau contenue dans le réceptacle est réchauffée en continu, utilisée afin de nettoyer les articles (30, 40) et recyclée par reflux vers le réceptacle (18). Après un premier cycle de lavage, l'eau est drainée depuis le réceptacle (18) et ce dernier est de nouveau rempli par une quantité d'eau provenant du réservoir (16) afin de répéter le cycle de lavage. Quand le réservoir est vide, une petite quantité d'eau restant dans le réceptacle (18) est réchauffée afin de générer de la vapeur, ce qui sert à stériliser les articles (30, 40) sous une température et une pression élevées de la même façon qu'un autoclave.
PCT/IB2003/003959 2002-09-16 2003-09-16 Procede et dispositif servant a nettoyer des articles WO2004023967A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003264920A AU2003264920A1 (en) 2002-09-16 2003-09-16 Method and apparatus for cleaning articles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200207404 2002-09-16
ZA2002/7404 2002-09-16

Publications (1)

Publication Number Publication Date
WO2004023967A1 true WO2004023967A1 (fr) 2004-03-25

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2184000A1 (fr) * 2008-11-10 2010-05-12 Electrolux Home Products Corporation N.V. Lave-vaisselle et réservoir d'eau adapté pour un lave-vaisselle
EP2279804A1 (fr) * 2009-07-28 2011-02-02 Koninklijke Philips Electronics N.V. Unité de lavage et de stérilisation
US7909936B2 (en) 2008-12-19 2011-03-22 Whirlpool Corporation Dishwasher final steam rinse method
WO2011015314A3 (fr) * 2009-08-05 2011-04-14 Electrolux Home Products Corporation N. V. Machine à laver, par exemple lave-vaisselle ou lave-linge, et procédé d'utilisation d'une machine à laver
US8845813B2 (en) 2009-08-05 2014-09-30 Electrolux Home Products Corporation N.V. Washer, such as a dishwasher or a washing machine, and method for operating a washer
WO2015111061A1 (fr) * 2014-01-26 2015-07-30 Shabtai Shahar Appareil de lavage de bouteilles et de vaisselle
US9272314B2 (en) 2008-12-19 2016-03-01 Whirlpool Corporation Dishwasher steam purge method
WO2016108791A1 (fr) * 2014-12-30 2016-07-07 Arcelik Anonim Sirketi Lave-vaisselle
US9751115B2 (en) 2009-08-05 2017-09-05 Electrolux Home Products Corporation N.V. Washer such as a dishwasher or a washing machine and method for operating a washer
US20230233051A1 (en) * 2022-01-21 2023-07-27 Jackson Wws, Inc. Warewashing machine with drain water tempering system
BE1031274B1 (de) * 2023-01-20 2024-08-19 Miele & Cie Reinigungseinrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427127A (en) * 1990-07-27 1995-06-27 Daikin Industries, Ltd. Method and apparatus for washing dishes, sticking inhibitor and rinsing assistant
DE4238450C2 (de) * 1992-11-13 1995-11-16 Bosch Siemens Hausgeraete Programmgesteuerte Haushalt-Geschirrspülmaschine
US5535774A (en) * 1994-02-08 1996-07-16 Premark Feg Corporation Apparatus for storing and supplying water for use in catering equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427127A (en) * 1990-07-27 1995-06-27 Daikin Industries, Ltd. Method and apparatus for washing dishes, sticking inhibitor and rinsing assistant
DE4238450C2 (de) * 1992-11-13 1995-11-16 Bosch Siemens Hausgeraete Programmgesteuerte Haushalt-Geschirrspülmaschine
US5535774A (en) * 1994-02-08 1996-07-16 Premark Feg Corporation Apparatus for storing and supplying water for use in catering equipment

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102209483B (zh) * 2008-11-10 2015-09-30 伊莱克斯家用产品公司 洗碗机和适用于洗碗机的水箱
US9247857B2 (en) 2008-11-10 2016-02-02 Electrolux Home Products Corporation, N.V. Dishwasher and a water tank adapted for a dishwasher
AU2009313047B2 (en) * 2008-11-10 2013-08-22 Electrolux Home Products Corporation N.V. Dishwasher and a water tank adapted for a dishwasher
KR101315619B1 (ko) 2008-11-10 2013-10-08 일렉트로룩스 홈 프로덕츠 코오포레이션 엔.브이. 식기 세척기 및 식기 세척기용 물 탱크
WO2010052021A1 (fr) * 2008-11-10 2010-05-14 Electrolux Home Products Corporation N.V. Lave-vaisselle et réservoir à eau conçu pour un lave-vaisselle
EP2184000A1 (fr) * 2008-11-10 2010-05-12 Electrolux Home Products Corporation N.V. Lave-vaisselle et réservoir d'eau adapté pour un lave-vaisselle
CN102209483A (zh) * 2008-11-10 2011-10-05 伊莱克斯家用产品公司 洗碗机和适用于洗碗机的水箱
RU2483667C2 (ru) * 2008-11-10 2013-06-10 Электролюкс Хоум Продактс Корпорейшн Н.В. Посудомоечная машина и бак для воды, предназначенный для такой посудомоечной машины
US7909936B2 (en) 2008-12-19 2011-03-22 Whirlpool Corporation Dishwasher final steam rinse method
US9272314B2 (en) 2008-12-19 2016-03-01 Whirlpool Corporation Dishwasher steam purge method
WO2011013022A1 (fr) * 2009-07-28 2011-02-03 Koninklijke Philips Electronics N.V. Unité de lavage et de stérilisation
EP2279804A1 (fr) * 2009-07-28 2011-02-02 Koninklijke Philips Electronics N.V. Unité de lavage et de stérilisation
CN102470406A (zh) * 2009-07-28 2012-05-23 皇家飞利浦电子股份有限公司 清洗和消毒单元
JP2013500110A (ja) * 2009-07-28 2013-01-07 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 洗浄殺菌ユニット
WO2011015314A3 (fr) * 2009-08-05 2011-04-14 Electrolux Home Products Corporation N. V. Machine à laver, par exemple lave-vaisselle ou lave-linge, et procédé d'utilisation d'une machine à laver
US8845814B2 (en) 2009-08-05 2014-09-30 Electrolux Home Products Corporation N.V. Washer such as a dishwasher or a washing machine and method for operating a washer
US9751115B2 (en) 2009-08-05 2017-09-05 Electrolux Home Products Corporation N.V. Washer such as a dishwasher or a washing machine and method for operating a washer
US8845813B2 (en) 2009-08-05 2014-09-30 Electrolux Home Products Corporation N.V. Washer, such as a dishwasher or a washing machine, and method for operating a washer
WO2015111061A1 (fr) * 2014-01-26 2015-07-30 Shabtai Shahar Appareil de lavage de bouteilles et de vaisselle
CN105934186A (zh) * 2014-01-26 2016-09-07 沙哈尔·沙布泰 瓶碟清洗装置
WO2016108791A1 (fr) * 2014-12-30 2016-07-07 Arcelik Anonim Sirketi Lave-vaisselle
US20230233051A1 (en) * 2022-01-21 2023-07-27 Jackson Wws, Inc. Warewashing machine with drain water tempering system
BE1031274B1 (de) * 2023-01-20 2024-08-19 Miele & Cie Reinigungseinrichtung

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