US3466109A - Front opening dishwasher with improved rack assembly - Google Patents

Front opening dishwasher with improved rack assembly Download PDF

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Publication number
US3466109A
US3466109A US665559A US3466109DA US3466109A US 3466109 A US3466109 A US 3466109A US 665559 A US665559 A US 665559A US 3466109D A US3466109D A US 3466109DA US 3466109 A US3466109 A US 3466109A
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United States
Prior art keywords
rack
enclosure
frames
sections
access opening
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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.)
Expired - Lifetime
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US665559A
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English (en)
Inventor
Melvin R Kauffman
Wesley S Pattison
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General Electric Co
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General Electric Co
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Publication date
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    • 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
    • A47L15/50—Racks ; Baskets
    • A47L15/507—Arrangements for extracting racks, e.g. roller supports
    • 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
    • A47L15/50—Racks ; Baskets
    • A47L15/504—Arrangements for changing the height of racks

Definitions

  • An improved rack assembly for a dishwasher of the type including a washing enclosure having top, bottom and side walls and an access opening through the front side wall.
  • the rack assembly includes upper and lower open framework dish racks positionable within the enclosure in a vertically spaced relationship.
  • the lower rack extends over substantially the entire horizontal crosssectional area of the enclosure when positioned therein and the upper rack is split from front to rear into left and right sections which have a combined cross-sectional area approximating that of the lower rack.
  • Support means are provided in the upper portion of the enclosure for removably mounting the upper rack sections selectively at several different elevations above the lower rack for substantially horizontal sliding movement through the access opening independently of the lower rack and of one another.
  • the division of the upper rack into plural removable sections permits easier access to the lower rack and also allows use of practically the entire height of all or part of the washing enclosure.
  • the present invention relates to dishwashing machines of the type having a front opening and racks which move substantially horizontally through that opening, and, more particularly, to an improved rack assembly which provides optimum effectiveness for such machines.
  • Dishwashing machines often have a washing enclosure with an access opening through the front side wall thereof. Such machines are usually provided with a door hinged at its bottom for pivotal movement from a vertical to a horizontal position to permit access to the washing enclosure. In such machines, there are generally two vertically spaced racks for receiving the articles to be washed. Each of these racks has a cross-sectional area substantially equal to that of the horizontal cross-section of the enclosure and is slidable independently of the other horizontally through the access opening to extend over the open door. It is conventional to form the bottom rack to receive larger dishes and the top rack to receive smaller dishes and glasses.
  • FIGURE 1 is a front elevational view, with some of the parts broken away to illustrate details, of a dishwasher incorporating a first embodiment of the improved rack assembly of the present invention
  • FIGURE 2 is a fragmentary front perspective view of the dishwasher of FIGURE 1 with the door open and the upper rack sections removed to show details of their support means;
  • FIGURE 3 is a partly broken fragmentary side view of the upper portion of the dishwasher of FIGURES l and 2;
  • FIGURE 4 is a fragmentary front elevational view of the upper portion of a dishwasher incorporating a second embodiment of the rack assembly of the present invention with the door open;
  • FIGURE 5 is a fragmentary front perspective view of the dishwasher portion of FIGURE 4 with the upper rack sections removed to show details of their support means;
  • FIGURE 6 is a fragmentary side clevational view showing details of the construction of the pivoted stops provided at the rear ends of the slides for the removable frames of the embodiment of FIGURES 4 and 5.
  • the dishwasher includes an outer cabinet 11 having a top wall 12, a front wall 13, a rear wall 14 and left and right side walls 15 and 16.
  • the aforementioned walls define therein a washing enclosure 17.
  • the cabinet 11 has an opening 18 in its front wall 13 which serves as an access opening for the admission of articles to and removal of the articles from the washing enclosure 17.
  • This access opening 18 is provided with a closure member or door 19 pivoted at its bottom edge by hinge means 20 to cabinet front wall 13 adjacent the lower edge of the access Opening 18.
  • the door 19 is movable between a substantially vertical position closing the opening 18 and a substantially horizontal position opening the opening 18.
  • the bottom of the washing enclosure 17 is defined by a bottom wall 21 which is connected in a liquid-tight relationship to the walls 13-16.
  • the bottom wall 21 gradually slopes to a low point 22 near the center of the dishwasher.
  • a sump 23 which may be formed integrally in the bottom wall 21 or which may be a separate element secured to the bottom wall.
  • a motor pump assembly 24 Disposed below and supported by the bottom wall 21 is a motor pump assembly 24 which includes an electric motor 25, pump 26 and an electricallyoperated valve 27 (shown in block).
  • the sump 23 and the inlet of the pump 26 are interconnected by a large diameter conduit 28.
  • the conduit 28 is secured to the sump 23 by means of a clamp 29 and to the housing of the pump 26 by means of a clamp 30.
  • the pump 26 has a main outlet 31 communicating with a condiut 32 which in turn communicates with a reaction-type spray head 33 that is rotatably mounted atop a centrally-bored pedestal 34 formed in the bottom wall 21
  • the pump 26 is also provided with an efiluent discharge outlet 35 which is controlled by the valve 27 and is connected to the household sewage system by a suitable conduit means (not shown).
  • the valve 27 includes an element within the housing of the pump 26 that is movable between two positions. In one of these positions the element closes the efliuent discharge outlet 35 and opens the main outlet 31 and, in the other of these positions, closes the main outlet and opens the efiluent discharge outlet.
  • An electrical resistance heating element (not shown) may be provided in the lower portion of the washing enclosure 17 to facilitate drying of articles supported therein upon completion of the normal wash and rinse operations.
  • An electrically-operated fill valve (not shown) is provided to admit water to the washing enclosure 17 and an electrical sequence control means (not shown) of a well known type is provided for sequentially operating the pump valve 27 and the fill valve.
  • the improved rack assembly of the present invention includes a conventional unitary lower rack 36 having a horizontal cross-sectional area substantially equal to that of the washing enclosure 17.
  • the lower rack 36 is provided with rollers 37 on its lower left and right edges.
  • the rollers 37 rest upon horizontal surfaces 38 formed on the interior of the cabinet left and right side walls 15 and 16, respectively.
  • the surfaces 38 can be formed of suitable pieces of sheet metal, suitably shaped and secured to the respective side walls 15 and 16.
  • the surfaces 38 extend from the cabinet rear wall 14 and terminate adjacent the access opening 18 in the front cabinet wall 13.
  • the door 19 is provided with surfaces or tracks 39 which, when the door is pivoted to its open position, are in horizontal alignment with the surfaces 38 within the washing enclosure 17 to. permit the lower rack 36 to be rolled or slid onto the door 19.
  • the upper rack is split from front to rear along the center of the washing enclosure 17 and includes a left rack section 40 and a right rack section 41.
  • the upper rack sections 40 and 41 are substantially identical and comprise substantially rectangular open framework racks or baskets, which have a combined horizontal cross-sectional area approximately equal to that of the lower rack 36.
  • the upper rack sections 40 and 41 are supported for substantially horizontal sliding movement through the access opening 18 independently of one another and the lower rack 36 by support means mounted within the upper portion of the washing enclosure 17.
  • the support means for the upper rack sections 40 and 41 include centrally open, left and right, thick wire frames 42 and 43 and means for slidably mounting the frames 42 and 43 in the upper portion of the washing enclosure 17.
  • the left and right upper rack sections 40 and 41 are respectively removably mounted in the central opening in the left and right frames 42 and 43, which are in turn each mounted for substantially horizontal sliding movement through the access opening 18 on slide means which are mounted within the enclosure 17.
  • Each of the frames 42 and 43 is substantially rectangular and has an outer edge adjacent one of the enclosure side walls 15, 16 and an inner edge adjacent the split between the rack sections 40 and 41.
  • the slide means include outer slide means 44 for mounting the outer edge of each of the frames 42 and 43 and inner slide means 45 for mounting the inner edge of each of the frames 42 and 43.
  • the outer edge of each of the frames 42 and 43 is mounted to the washing enclosure by the outer slide means 44, which are similar to those described in detail in US. Patent No. 3,096,125, issued July 2, 1963 to Norman L. Kendt, and assigned to the General Electric Company, assignee of the present invention.
  • the outer slide means 44 basically include an outer slide 46 supported by four rollers 47 which are rotatably journaled on the interior of each of the left and right side walls 15, 16 of the cabinet 11.
  • a front roller 48 and a rear roller 49 are rotatably journalled on the outer edge of each of the frames 42 and 43 and extend outwardly therefrom to cooperate with elongate slots 50 and 51, respectively, in the slide 46.
  • the inner edge of each of the frames 42 and 43 is mounted within the upper portion of the washing enclosure 17 by the inner slide means 45.
  • the inner slide means includes a bracket 52 which is fastened by suitable means, such as welds, to the interior of the cabinet upper wall 12 adjacent the front center of the access opening 18.
  • the bracket 52 has a vertically dependent portion 53 which rotatably journals two rollers 54 on each of its left and right faces.
  • the rollers 54 on the left face of the bracket portion 53 receive the right or inner edge to the left frame 42 while the rollers 54 on the right face of the bracket portion 53 receive the left or inner edge of the right frame 43.
  • each of the left and right upper rack sections 40 and 41 is respectively removably mounted in the central opening in the left and right frames 42 and 43.
  • means are provided for selectively positioning the rack sections 40 and 41 at various elevations relative to one another and to the lower rack 36. This elevation selection is made possible by the provision of complementar elevation positioning means on the rack sections 40 and 41 and their respective frames 42 and 43.
  • these elevation positioning means include a pair of upwardly and rearwardly opening hooks 56 formed on the inner perimeter of the rear edge of each of the frames 42 and 43 and a pair of upwardly opening resilient clips 57 mounted on the inner perimeter of the front edge of each of the frames 42 and 43.
  • FIGURES 4 and 5 illustrate another embodiment of the present invention which provides upper rack sections 60 and 61 of unequal size and permits complete removal from the washing enclosure 17 of both of the similarly unequally-sized left and right frames 62 and 63 which support the unequal upper rack sections 60 and 61.
  • the upper rack is split from front to rear of the washing enclosure 17 in such a manner that its left rack section 60 covers approximately two-fifths and its right rack section 61 covers approximately threefifths of the left-to-right horizontal dimension of the washing enclosure 17.
  • the left and right sections 60 and 61 are respectively removably mounted in the central opening in the heavy wire left and right frames 62 and 63, which are in turn each mounted for substantially horizontal sliding movement through the access opening 18 on modified slide means that are mounted within the enclosure 17.
  • Each of the frames 62 and 63 is substantially rectangular and has an outer edge adjacent one of the cabinet side walls 15, 16 and an inner edge adjacent the split between the rack sections 60 and 61.
  • the modified slide means for this second embodiment includes outer slide means substantially identical to slide means 44 provided in the first embodiment illustrated in FIGURES l-3 and modified inner slide means 64 for the inner edge of each of the frames 62 and 63.
  • the modified inner slide means 64 include a bracket 65 which is fastened by suitable means, such as welds, to the interior of the cabinet top wall 12 adjacent the front of the access opening 18 at a point located approximately two-fifths of the distance from the left 15 to the right side wall 16 of the cabinet 11.
  • the bracket 65 has a verti cal dependent portion 66 which rotatably journals four rollers 67 on each of its left and right faces.
  • the rollers 67 on the faces of the bracket portion 66 receive an inner slide 68 which is similar to the outer slide 46 and is provided with elongated slots 69 and 70.
  • the slots 69 and 70 respectively receive a front roller 71 and a rear roller 72 which are each rotatably journalled on a tab 73 that extends vertically from the inner edge of each of the frames 62 and 63.
  • each of the outer and inner slides 46 and 68 of the second embodiment is provided with a pivoted stop 74 which is normally retained in a vertical position by detent means 75 formed on it and the slide so that it can engage the rear ends of the rollers 47 and 67 and prevent removal of the slide from the washing enclosure 17.
  • the stops 74 are forced free from their detent means 75 and pivoted to a horizontal position to allow movement of the slides 46 and 68 through the rollers 47 and 67.
  • FIGURES 4-6 includes two means for selectively positioning its rack sections 60 and 61 at various elevations relative to one another in the lower rack 36.
  • the first of these elevation positioning means are somewhat similar to those provided in the first embodiment shown in FIGURES 1-3, and include a pair of transversely-spaced horizontal studs 76 projecting into the central opening from the front and rear edges of each of the frames 62 and 63.
  • Each of the open framework upper rack sections 60 and 61 is provided with vertically-spaced horizontal rods 77 and 78 which are respectively located adjacent the top and bottom of the front and rear ends of each of the rack sections 60 and 61 and are selectively engageable with the studs 76. If it is desired to position one of the upper rack sections 60 or 61 at a higher elevation within the Washing enclosure 17, its bottom rods 78 are engaged with the complementary studs 76 on its frame when the rack section is mounted within the central opening thereof. Alternatively, if it is desired to position one of the rack sections 60 or 61 at a lower elevation, its upper rods 77 are so engaged.
  • the second elevation positioning means are provided by the removable frames 62 and 63. As illustrated in FIGURES 4 and 5, the removable frames 62 and 63 are vertically offset from the horizontal axes of their rollers 48, 49 and 71, 72 which are received within the slots 50, 51 and 69, 70 in their outer 46 and inner slides 68 by the tabs 73. Consequently, the removable frames 62 and 63 can be positioned either above or below the axes of these rollers 48, 49 and 71, 72 depending upon the direction in which their tabs 73 extend when their slides 46 and 68 are inserted into the side wall 47 and bracket rollers 67.
  • the left frame 62 has been inserted with its tabs 73 extending downward and is located above the axes of its slide-received rollers 48, 49 and 71, 72, while the right rack 63 has been inserted with its tabs 73 extending upward and is located below the axes of its slide-received rollers and below the left rack frame 62.
  • both removable rack frames 62 and 63 have been inserted with their tabs 73 extending upward and both are located at the same elevation.
  • an improved rack assembly for supporting articles to be washed positioned within the enclosure comprising:
  • support means in the enclosure for supporting a plurality of generally side-by-side removable upper racks selectively at different elevations above said lower rack for substantially horizontal sliding movement through the access opening independently of said lower rack and one another;
  • said support means including a plurality of centrally open frames, one for receiving each of said upper rack, and mounting means for mounting each of said frames in said enclosure for independent sliding movement through said access opening.
  • an improved rack assembly for supporting articles to be washed positioned within the enclosure comprising:
  • said upper rack including a left section and a right section
  • an improved rack assembly for supporting articles to be washed positioned within the enclosure comprising:
  • an improved rack assembly for supporting articles to be washed positioned within the enclosure comprising:
  • said support means for said sections including a support member mounted on the top wall of the enclosure.
  • an improved rack assembly for supporting articles to be washed positioned within .the enclosure comprising:
  • said lower rack having a cross-sectional area which consumes substantially the entire horizontal crosssectional area of the enclosure when positioned therein;
  • (0) support means in the enclosure for supporting a plurality of generally side-by-side upper racks above said lower rack for substantially horizontal movement through the access opening independently of said lower rack and one another;
  • said support means including a plurality of centrally open frames, at least one for receiving each of said upper racks;
  • each of said frames is provided with elevation positioning means selectively engageable with complementary means on the rack received therein.
  • said mounting means for mounting each of said frames in the enclosure includes (i) first slide means mounted on one of the enclosure side walls, and
  • At least one of said frames is removable from its mounting means, whereby it can be completely removed from the dishwasher.
  • At least one of said frames is mountable in its mounting means in at least two different positions whereby its elevation within the enclosure can be varied.

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US665559A 1967-09-05 1967-09-05 Front opening dishwasher with improved rack assembly Expired - Lifetime US3466109A (en)

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US66555967A 1967-09-05 1967-09-05

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US (1) US3466109A (enrdf_load_stackoverflow)
DE (1) DE1728167A1 (enrdf_load_stackoverflow)
FR (1) FR1577922A (enrdf_load_stackoverflow)
GB (1) GB1227798A (enrdf_load_stackoverflow)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594058A (en) * 1969-04-17 1971-07-20 Gen Electric Rack assembly for front-loading dishwasher
US4405191A (en) * 1980-10-17 1983-09-20 Everett/Charles Test Equipment, Inc. Low insertion force actuable interface for electrical contacts
US5462348A (en) * 1991-10-18 1995-10-31 Maytag Corporation Dishwasher utensil tray
US6571812B1 (en) * 2000-02-10 2003-06-03 Steris Inc. Universal shelving system
US20050133063A1 (en) * 2003-12-17 2005-06-23 Maytag Corporation Dishwasher having a side-by-side rack system
US20060119236A1 (en) * 2004-12-08 2006-06-08 Maytag Corporation Height adjuster mechanism for a dishwasher dish rack
FR2943232A1 (fr) * 2009-03-23 2010-09-24 Fagorbrandt Sas Machine a laver la vaisselle comprenant deux paniers a vaisselle verticaux
US20100314977A1 (en) * 2009-06-11 2010-12-16 Mallory Brian L Adjustable upper dishwasher rack
US20110193457A1 (en) * 2008-07-31 2011-08-11 Ismail Cem Bastuji dishwasher
US20150245761A1 (en) * 2012-09-26 2015-09-03 Foshan Shunde Midea Washing Appliances Mfg. Co., Ltd. Tray supporting apparatus for dishwasher, cutlery tray assembly and dishwasher
CN106361239A (zh) * 2016-11-19 2017-02-01 郑州经度知识产权代理服务有限公司 一种具有烘干效果的全自动高效洗碗机
US10660501B2 (en) * 2016-09-20 2020-05-26 Hausgeräte GmbH Domestic dishwasher
WO2020216444A1 (en) * 2019-04-25 2020-10-29 Electrolux Appliances Aktiebolag Dishwasher
US10973389B2 (en) * 2019-08-30 2021-04-13 Midea Group Co., Ltd. Basket for a dish washing appliance
US11166620B2 (en) * 2018-03-06 2021-11-09 BSH Hausgeräte GmbH Domestic dishwasher
US11497381B2 (en) * 2019-08-30 2022-11-15 Midea Group Co., Ltd. Basket for a dish washing appliance

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2711188C3 (de) * 1977-03-15 1981-06-11 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Spange für den endseitigen Verschluß einer Führungsschiene für den Geschirrkorb einer Geschirrspülmaschine
DE10164505A1 (de) * 2001-12-28 2003-07-17 Bsh Bosch Siemens Hausgeraete Besteckkorb für eine Geschirrspülmaschine
AU2010238773B2 (en) 2009-04-22 2016-07-14 Electrolux Professional, Inc. Fluid flow structure and method of use for continuous motion washing machine
WO2013123506A1 (en) 2012-02-17 2013-08-22 Cantrell John W Fluid flow structure and method of use for continuous motion washing machine
FR2958147B1 (fr) 2010-03-30 2012-07-27 Fagorbrandt Sas Machine a laver la vaisselle equipee d'un dispositif telescopique de translation d'un panier
FR2958145B1 (fr) * 2010-03-30 2012-07-27 Fagorbrandt Sas Dispositif telescopique de soutien et de guidage en translation d'un panier de lave-vaisselle

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US2825617A (en) * 1955-10-12 1958-03-04 Whirlpool Co Variable drawer accessory for household refrigerators
US3245742A (en) * 1963-08-26 1966-04-12 Whirlpool Co Article supporting apparatus
US3303934A (en) * 1965-10-22 1967-02-14 Gen Electric Rack structure for dishwasher
US3321261A (en) * 1965-04-22 1967-05-23 Gen Electric Rack system for automatic dishwasher
US3325236A (en) * 1965-10-04 1967-06-13 Whirlpool Co Cabinet structure
US3347613A (en) * 1965-10-14 1967-10-17 Gen Electric Rack slide stop
US3352431A (en) * 1966-01-21 1967-11-14 American Motors Corp Refrigerator adjustable shelf

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825617A (en) * 1955-10-12 1958-03-04 Whirlpool Co Variable drawer accessory for household refrigerators
US3245742A (en) * 1963-08-26 1966-04-12 Whirlpool Co Article supporting apparatus
US3321261A (en) * 1965-04-22 1967-05-23 Gen Electric Rack system for automatic dishwasher
US3325236A (en) * 1965-10-04 1967-06-13 Whirlpool Co Cabinet structure
US3347613A (en) * 1965-10-14 1967-10-17 Gen Electric Rack slide stop
US3303934A (en) * 1965-10-22 1967-02-14 Gen Electric Rack structure for dishwasher
US3352431A (en) * 1966-01-21 1967-11-14 American Motors Corp Refrigerator adjustable shelf

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594058A (en) * 1969-04-17 1971-07-20 Gen Electric Rack assembly for front-loading dishwasher
US4405191A (en) * 1980-10-17 1983-09-20 Everett/Charles Test Equipment, Inc. Low insertion force actuable interface for electrical contacts
US5462348A (en) * 1991-10-18 1995-10-31 Maytag Corporation Dishwasher utensil tray
US6571812B1 (en) * 2000-02-10 2003-06-03 Steris Inc. Universal shelving system
US6666218B2 (en) 2000-02-10 2003-12-23 Steris Inc. Universal shelving system and method of use
US20050133063A1 (en) * 2003-12-17 2005-06-23 Maytag Corporation Dishwasher having a side-by-side rack system
US7198054B2 (en) 2003-12-17 2007-04-03 Maytag Corporation Dishwasher having a side-by-side rack system
US20060119236A1 (en) * 2004-12-08 2006-06-08 Maytag Corporation Height adjuster mechanism for a dishwasher dish rack
US7410228B2 (en) 2004-12-08 2008-08-12 Whirlpool Corporation Height adjuster mechanism for a dishwasher dish rack
US9186038B2 (en) * 2008-07-31 2015-11-17 Arcelik Anonim Sirketi Dishwasher
US20110193457A1 (en) * 2008-07-31 2011-08-11 Ismail Cem Bastuji dishwasher
FR2943232A1 (fr) * 2009-03-23 2010-09-24 Fagorbrandt Sas Machine a laver la vaisselle comprenant deux paniers a vaisselle verticaux
US20100314977A1 (en) * 2009-06-11 2010-12-16 Mallory Brian L Adjustable upper dishwasher rack
US8191560B2 (en) * 2009-06-11 2012-06-05 General Electric Company Adjustable upper dishwasher rack
US20150245761A1 (en) * 2012-09-26 2015-09-03 Foshan Shunde Midea Washing Appliances Mfg. Co., Ltd. Tray supporting apparatus for dishwasher, cutlery tray assembly and dishwasher
US9380926B2 (en) * 2012-09-26 2016-07-05 Foshan Shunde Midea Washing Appliances Mfg. Co., Ltd. Tray supporting apparatus for dishwasher, cutlery tray assembly and dishwasher
US10660501B2 (en) * 2016-09-20 2020-05-26 Hausgeräte GmbH Domestic dishwasher
CN106361239A (zh) * 2016-11-19 2017-02-01 郑州经度知识产权代理服务有限公司 一种具有烘干效果的全自动高效洗碗机
US11166620B2 (en) * 2018-03-06 2021-11-09 BSH Hausgeräte GmbH Domestic dishwasher
WO2020216444A1 (en) * 2019-04-25 2020-10-29 Electrolux Appliances Aktiebolag Dishwasher
US10973389B2 (en) * 2019-08-30 2021-04-13 Midea Group Co., Ltd. Basket for a dish washing appliance
US11497381B2 (en) * 2019-08-30 2022-11-15 Midea Group Co., Ltd. Basket for a dish washing appliance

Also Published As

Publication number Publication date
DE1728167A1 (de) 1972-03-09
FR1577922A (enrdf_load_stackoverflow) 1969-08-08
GB1227798A (enrdf_load_stackoverflow) 1971-04-07

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