US3538927A - Dishwashing machine - Google Patents

Dishwashing machine Download PDF

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Publication number
US3538927A
US3538927A US722602A US3538927DA US3538927A US 3538927 A US3538927 A US 3538927A US 722602 A US722602 A US 722602A US 3538927D A US3538927D A US 3538927DA US 3538927 A US3538927 A US 3538927A
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United States
Prior art keywords
openings
arm
spraying device
liquid
discharged
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.)
Expired - Lifetime
Application number
US722602A
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English (en)
Inventor
Harald Anton Ake Wallgren
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Electrolux AB
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Electrolux AB
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Filing date
Publication date
Application filed by Electrolux AB filed Critical Electrolux AB
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Publication of US3538927A publication Critical patent/US3538927A/en
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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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays

Definitions

  • ABSTRACT Dishwashing apparatus having a spraying device [54] DISHWASHING MACHINE rotatable about an axis and to which liquid under pressure is supplied through a supply line, the spraying device including 4 Claims, 5 Drawing Figs.
  • My invention relates to dishwashing machines having a cabinet in which dishes and the like are cleansed. by liquid jets from spraying devices.
  • a rotatable spraying device which includes an elongated hollow member which is connected to receive liquid under pressure through a supply line and is provided with openings from which liquid jets are discharged toward the dishes to be washed.
  • the hollow member is mounted for rotution about its longitudinal axis and mechanism is provided for positively turning the hollow member about its longitudinal axis responsive to rotation of the spraying device.
  • the mechanism for effecting movement of the hollow member about its longitudinal axis may comprise gearing which includes a gear fixed to and movable with the hollow member about its longitudinal axis and a stationary toothed rack fixed to structure upon which the spraying device is rotatably mounted and with which the gear coacts.
  • the spraying device may include first and second hollow arms extending outward from its axis of rotation and each having openings from which liquid jets are discharged toward the dishes to be washed.
  • the first arm is immovable about its longitudinal axis and the second arm, which constitutes the hollow member, is movable orturnable about its longitudinal axis.
  • Mechanism is provided for turning thesecond arm about its longitudinal axis responsive to rotation of the spraying device. Further, the openings are distributed on the first arm and of such size that the resultant reaction force developed by the. jets will effect rotation of the spraying device in one direction.
  • the resultant reaction force developed by the liquid jets discharged from the openings in thesecond arm, which are at one side of a vertical plane passing throughthe longitudinal axis of the second arm, is such thatit will substantially balance the resultant reaction force developed by the liquid jets discharged from the openings in the second arm which are at the other side of such vertical plane, so that the second arm will be substantially ineffective to impart rotating movement to the spraying device.
  • FIG. 1 is a vertical sectional view of a dishwashing machine embodying my invention
  • FIG. 2 is an enlarged'fragmentary sectional view of parts shown in FIG. 1;
  • FIG. 4 is a sectional view taken at line 4-4 of FIG. 2;
  • FIG. 5 is a sectional view similar to FIG; 4 illustrating another embodiment of the invention.
  • door 17 is hinged at its bottom'edge at 18 to a region of the machine at which parts of the outer and inner shells 1'1 and 12 are united to one another.
  • the dishes to be washed are adapted to be carried by top and bottom dish racks l9 and 20, respectively.
  • Each of the dish racks 19 and 20 is horizontally movable into and from the interior 15 of the cabinet 11 through the access opening 16 in any well known manner (not shown).
  • the opposing lateral side walls of the interior 15 of the cabinet 11 may be provided with horizontal guide members along which the dish racks l9'and 20 are movable to enable the racks to be inserted into and withdrawn from the cabinet.
  • the liquid flows under pressure through openings 23a in the upper end of conduit 23 into the hub member 22c and from the latter into the arms 22a from which liquid jets are discharged through the openings 22b toward the dishes to be washed, the radial arms 22a being caused to rotate in one direction by the reaction forces developed by the liquid jets.
  • rotating movement is imparted to the arms 22a responsive to supply of liquid under pressure to the openings 22b from which the liquid jets are discharged.
  • the inner shell 12 is formed with a sump 25 into which liquid in the interior 15 of the cabinet 11 drains. From the sump 25 liquid flows through a conduit 26 to the inlet of the pump 24.
  • the top spraying device 21 comprises a rotatable member including radially extending arms 27 and 28 formed with openings 27a and 28a through which liquid jets are discharged.
  • the inner ends of the arms 27 and 28 receive liquid from a hub member 29 fixed to the lower end of a hollow vertical sleeve 30 rotatable within a housing 31.
  • the top of the housing 31 is formed with a shoulder 32 against which bears a collar 33 fixed at 34 to the upper part of the sleeve 30. With this construction the shoulder 32 functions as a thrust bearing for supporting the vertical sleeve 30 and the top spraying device 21 at the lower end of the sleeve.
  • the hollow sleeve 30 intermediate its ends is formed with openings 35 for liquid to flow into the sleeve from a chamber 36 which is defined by the housing 31 and disposed about the sleeve. Liquid is introduced into the chamber 36 of the housing 31 through a conduit 37 and a conduit 38 which is connected to receive liquid from the outlet of the pump 24.
  • the top spraying device 21 forms a unitary component of the top dish rack 19 and is movable therewith.
  • the conduit 37 is supported by. fixed brackets 39 which in turn are mounted on the top dish rack 19.
  • the inner end of the conduit 37 is fixed at 40 in an opening in the housing 31 at the vicinity of the chamber 36 therein.
  • the spraying device 21, hollow sleeve 30, housing 31 and conduit 37 are carriedby the brackets 39 mounted on the top dish rack 19.
  • the outer end of the conduit 37 is funnelshaped at 41 and cooperates with a similarly shaped part 42 defining an opening in the inner shell 12 and at which region the upper end of'conduit 38 is fixed.
  • the funnel-shaped end 41 of the conduit 37 and the similar shaped part 42 at the opening in the inner shell cooperate to form a liquid-tight seal when the top dish rack 19 is moved rearward in the interior 15 of the cabinet 11.
  • the funnel-shaped end 41 of the conduit 37 and the similar shaped part 42 at the opening in the inner shell 12 may be provided with outer surfaces of suitable resilient material to insure forming a liquid-tight joint when these parts are moved into abutting relation.
  • the dish rack When the top dish rack 19 is moved within the cabinet 11, the dish rack may be urged rearward in any suitable manner responsive to closing of the door 17 to force the rear end 41 of the conduit 37 into sealing engagement with the part 42 at the opening in the inner shell 12.
  • the upper part of the hollow sleeve 30 may be formed with spaced vertical slits 43 through which liquid jets are discharged toward the dishes to be washed.
  • the inner ends of the hollow arms 27 and 28 of the top spraying device 21 are seated in diametrically opposite is at a right angle to the longitudinal axes of the arms 27 and 28 and has an opening 45a through which the rod 44 extends.
  • the partition 45 is formed to receive a threaded set screw 45b which is accessible exteriorly of the hub member 29 and functions to secure the rod 44 to the partition 45 and prevent axial movement of the rod.
  • the openings 27a are formed in two rows at one side of the hollow arm 27.
  • the openings 27a on the top and bottom rows are in vertical alignment and of the same size.
  • liquid under pressure flows from the pump 24 through conduits 38 and 37, chamber 36 of the housing 31, hollow sleeve 30 and hub 29 into the arm 27, such liquid is discharged from the arm 27 toward the dishes to be washed through the openings 27a in the general direction ofthc arrow A in FIG. 4. Since the openings 27a in the top and bottom rows of openings are of the same size and at the same acute angle a above and below the horizontal, the hollow arm 27 is caused to move in the direction of the arrow B in FIG. 4 by the reaction forces developed by the liquid jets discharged from the openings 27a. 7
  • rotating movement is imparted to the arm 28 about its longitudinal axis responsive to rotation of the top spraying device 21. I accomplish this by rotatably mounting the arm 28 on the rod 44 and providing mechanism for turning the arm 28 about its longitudinal axis when the top spraying device 21 is rotated.
  • the inner end of the hollow arm 28 is seated in the opening 29!) in the hollow hub member 29 and provides a connection whereby the arm 28 is turnable in the hub opening 29b.
  • the nut 28d at the outer threaded end of the rod 44 is moved inward on the rod to prevent excessive axial movement of the arm 28 on the rod and at the same time permit the arm 28 to turn on the rod while the inner end of the arm remains seated in the hub opening 29!).
  • a ring-shaped gear 46 having teeth 46a is fixed at 47 to the inner end ofthe arm 28 and rotatable therewith.
  • the teeth 46a of gear 46 mesh with the teeth 48 of a circular stationary rack 49 formed at the bottom of the housing 31.
  • the gear 46 moves along the circular stationary rack 49, the teeth 48 of the stationary rack meshing with the teeth 46a of the gear 46 whereby turning movement will be imparted to the gear 46. Since the gear 46 is fixed to the arm 28, turning movement also will be imparted to the arm 28 and the latter will rotate about the longitudinal axis of the rod 44.
  • the arm 28 may be provided with two horizontal rows of openings 28:: which are diametrically opposite one another.
  • the openings 28a in one row are positioned to discharge liquid jets vertically upward
  • the openings 28a in the other row are positioned to discharge liquid jets vertically downward.
  • successive openings 28a in the two rows, from the inner to the outer end of the arm 28, desirably are in vertical alignment.
  • reaction forces developed by the liquid jets discharged from one row of openings 28a will counteract the reaction forces developed by the liquid jets discharged from the other row of openings 2811, so that the resultant reaction force will be practically zero and ineffective to impart rotating movement about a vertical axis to the arm 28 of the top spraying device 21.
  • the mechanism for effecting movement of the hollow member or arm 28 about its longitudinal axis comprises gearing including the gear 46 fixed to and turnable with the hollow member 28 and the stationary toothed rack 49.
  • the gear 46 engages the rack 49 which is fixed to the structure or housing 3i upon which the spraying device 21 is mounted for rotation.
  • the gear 46 and toothed rack 49 may be beveled.
  • the gear 46 and stationary toothed rack 49 may have a gear ratio that differs slightly from 1:1.
  • the housing 31 upon which the spraying device 21 is mounted for rotation may be referred to as a part.
  • the hollow upright sleeve 30 is journaled for rotation on the housing or part 31, the top section of the sleeve projecting upward from the top of the part 31.
  • the sleeve 30, which defines a portion of the liquid supply line, is formed with openings 43 in the top section thereof through which liquid jets are discharged toward dishes to be washed.
  • the arm 27 of the top spraying device 21 in a broad sense may be referred to as a part or member which functions to rotate the spraying device 21 responsive to pressure of liquid supplied thereto.
  • the openings 27a are distributed in the arm 27 and of such size that the resultant reaction force developed by the jets will effect rotation of the spraying device in the direction of the arrow B in FIG. 4.
  • openings 127a in arm I27 correspond to openings 27a in FIG. 4.
  • additional openings 127a are provided at the opposite side of the arm 127 from the openings 127a. It will be seen that the openings 127a, which are at the same angle [3 above and below the horizontal, are materially smaller than the openings 127a.
  • the resultant reaction force developed by the liquid jets discharged from the openings 127a in the direction of the arrow A, which are at one side of a vertical plane passing through the longitudinal axis of the arm 127 will be greater than the resultant reaction force developed by the liquid jets discharged in the direction of the arrow B from the openings 127a which are at the other side of such vertical plane, whereby rotating movement will be imparted to the spraying device in the direction of the arrow B.
  • a spraying device in dishwashing apparatus, a spraying device, structure for mounting said spraying device for rotation about an axis, a supply line for supplying liquid under pressure to said spraying device, means to effect rotation of said spraying device, said rotatable spraying device including an elongated hollow member connected to receive liquid from said supply line, said hollow member having openings therein from which liquid jets are discharged toward dishes to be washed, said spraying means for fixing said mounting structure for said spraying device on said dish rack whereby said spraying device becomes a unitary component of said rack, said mounting structure having a passageway forming a part of said liquid supply line, a conduit carried by said dish rack which also forms a part of said liquid supply line, said conduit having its forward end communicating with the passageway in said mounting structure for said spraying device, and the opposite rear end of said conduit being disposed within said cabinet at the rear thereof when said dish rack is positioned in said cabinet and said door is closed.
  • Dishwashing apparatus as set forth in claim 1 in which said means for fixing said mounting structure for said spraying device on said dish rack includes said conduit.
  • Dishwashing apparatus as set forth in claim 1 in which the liquid supply line includes a pipe having an outlet for discharging liquid therefrom into said cabinet at the rear thereof, and the rear end of said conduit being in liquid communication with the outlet of said pipe when said dish rack is positioned in said cabinet and said door is closed.
  • Dishwashing apparatus as set forth in claim 3 in which the rear of said conduit and the outlet of said pipe are in alignment and form cooperating members of a detachable connection when said dish rack is positioned in said cabinet and said door Y is closed, and at least one of said last-mentioned members having an outer surface formed of resilient material to form a substantialiy liquid-tight sea] therebetween.

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  • Washing And Drying Of Tableware (AREA)
  • Reciprocating Pumps (AREA)
US722602A 1967-04-27 1968-04-19 Dishwashing machine Expired - Lifetime US3538927A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE6019/67A SE304585B (ja) 1967-04-27 1967-04-27

Publications (1)

Publication Number Publication Date
US3538927A true US3538927A (en) 1970-11-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
US722602A Expired - Lifetime US3538927A (en) 1967-04-27 1968-04-19 Dishwashing machine

Country Status (6)

Country Link
US (1) US3538927A (ja)
DK (1) DK117732B (ja)
FR (1) FR1571450A (ja)
GB (2) GB1167846A (ja)
NO (1) NO118992B (ja)
SE (1) SE304585B (ja)

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809106A (en) * 1972-08-23 1974-05-07 Fedders Corp Dishwasher with improved spray apparatus
US4064887A (en) * 1976-07-27 1977-12-27 Hobart Corporation Upper level wash arm system
FR2420956A1 (fr) * 1978-03-27 1979-10-26 Gen Electric Lave-vaisselle perfectionne
US4176203A (en) * 1976-02-27 1979-11-27 Boliden Aktiebolag Process and an apparatus for alkali-treatment of lignocellulosic material
US4179307A (en) * 1977-05-13 1979-12-18 Montedison S.P.A. Dish-washer consisting of an assembly of functional units made of thermoplastic material
US5168888A (en) * 1991-11-21 1992-12-08 Altwasser Arlie A Golf club cleaning apparatus
US5823211A (en) * 1996-03-20 1998-10-20 Bsh Bosch Und Siemens Hausgeraete Gmbh Dishwasher
US5904166A (en) * 1996-10-17 1999-05-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Spray arm support for front-loading dishwashers
US5954073A (en) * 1997-12-22 1999-09-21 General Electric Company Wash apparatus for a dishwasher
EP0943281A2 (en) * 1998-02-23 1999-09-22 White Consolidated Industries, Inc. Feed system for a middle-level spray arm
US6454875B1 (en) 1999-06-30 2002-09-24 Pro Club Cleaner, L.L.C. Golf club cleaning apparatus
US20070289615A1 (en) * 2006-06-19 2007-12-20 Lg Electronics Inc. Washing arm and dishwasher having the same
US20090159103A1 (en) * 2007-12-19 2009-06-25 Whirlpool Corporation Dishwasher with sequencing corner nozzles
US20100043825A1 (en) * 2008-08-19 2010-02-25 Whirlpool Corporation Sequencing diverter valve system for an appliance
US20100275957A1 (en) * 2009-04-30 2010-11-04 Whirlpool Corporation Dishwasher with rotating zone wash sprayers
ITTO20120165A1 (it) * 2012-02-24 2013-08-25 Premark Feg Llc Pompa a doppia mandata e macchina lavastoviglie provvista di tale pompa
EP3085293A1 (de) * 2015-04-24 2016-10-26 BSH Hausgeräte GmbH Sprüharmanordnung und geschirrspülmaschine
US10524634B2 (en) 2017-09-29 2020-01-07 Midea Group Co., Ltd. Dishwasher with combined liquid and air sprayers
US10531781B2 (en) 2017-09-29 2020-01-14 Midea Group Co., Ltd. Dishwasher with discretely directable tubular spray elements
US10631708B2 (en) 2018-09-14 2020-04-28 Midea Group Co., Ltd. Dishwasher with docking arrangement for elevation-adjustable rack
US10765291B2 (en) 2018-09-14 2020-09-08 Midea Group Co., Ltd. Dishwasher with check valve in rotatable docking port
US11000176B2 (en) 2018-09-14 2021-05-11 Midea Group Co., Ltd. Dishwasher with rotatable diverter valve
US11026559B2 (en) 2019-09-30 2021-06-08 Midea Group Co., Ltd. Dishwasher with image-based fluid condition sensing
US11045066B2 (en) 2019-03-11 2021-06-29 Midea Group Co., Ltd. Dishwasher with keyed coupling to rack-mounted conduit
US11071440B2 (en) 2018-09-14 2021-07-27 Midea Group Co., Ltd. Dishwasher with rack-mounted conduit return mechanism
US11185209B2 (en) 2019-11-20 2021-11-30 Midea Group Co., Ltd. Dishwasher steam generator
US11191416B2 (en) 2019-09-30 2021-12-07 Midea Group Co., Ltd. Dishwasher with image-based position sensor
US11202550B2 (en) 2019-11-20 2021-12-21 Midea Group Co., Ltd. Dishwasher thermal imaging system
US11259681B2 (en) 2019-09-30 2022-03-01 Midea Group Co., Ltd Dishwasher with image-based diagnostics
US11399690B2 (en) 2019-09-30 2022-08-02 Midea Group Co., Ltd. Dishwasher with cam-based position sensor
US11412912B2 (en) 2020-09-21 2022-08-16 Midea Group Co., Ltd. Dishwasher with tubular spray element slip ring alignment
US11464389B2 (en) 2019-09-30 2022-10-11 Midea Group Co., Ltd. Dishwasher with image-based detergent sensing
US11484180B2 (en) 2020-11-11 2022-11-01 Midea Group Co., Ltd. Dishwasher with tubular spray element including multiple selectable spray patterns
US11484183B2 (en) 2019-09-30 2022-11-01 Midea Group Co., Ltd. Dishwasher with image-based object sensing
US11497374B2 (en) 2020-02-19 2022-11-15 Midea Group Co., Ltd. Dishwasher with wall-mounted rotatable conduit
US11826001B2 (en) 2022-02-15 2023-11-28 Midea Group Co., Ltd. Dishwasher with tubular spray element including elongated metal tube and retaining tab for mounting support member thereto

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2426443A1 (fr) * 1978-05-23 1979-12-21 Indesit Machine a laver la vaisselle pourvue d'un panier reglable en hauteur
JPS59103640A (ja) * 1983-11-10 1984-06-15 松下電器産業株式会社 食器洗い機
FR2679121B1 (fr) * 1991-07-16 1995-05-19 Esswein Sa Lave-vaisselle a fonctionnement ameliore.
DE19948780A1 (de) * 1999-10-08 2001-04-12 Winterhalter Gastronom Gmbh Spülmaschine
PL1708608T3 (pl) * 2004-01-12 2009-12-31 Miele & Cie Kosz na naczynia do zmywarki do naczyń ze strefą intensywnego zmywania
US8578954B2 (en) 2009-12-21 2013-11-12 Whirlpool Corporation Spray arm assembly for a dishwasher

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809106A (en) * 1972-08-23 1974-05-07 Fedders Corp Dishwasher with improved spray apparatus
US4176203A (en) * 1976-02-27 1979-11-27 Boliden Aktiebolag Process and an apparatus for alkali-treatment of lignocellulosic material
US4064887A (en) * 1976-07-27 1977-12-27 Hobart Corporation Upper level wash arm system
US4179307A (en) * 1977-05-13 1979-12-18 Montedison S.P.A. Dish-washer consisting of an assembly of functional units made of thermoplastic material
FR2420956A1 (fr) * 1978-03-27 1979-10-26 Gen Electric Lave-vaisselle perfectionne
US4175575A (en) * 1978-03-27 1979-11-27 General Electric Company Dishwasher with oscillating rotary spray arm
US5168888A (en) * 1991-11-21 1992-12-08 Altwasser Arlie A Golf club cleaning apparatus
US5823211A (en) * 1996-03-20 1998-10-20 Bsh Bosch Und Siemens Hausgeraete Gmbh Dishwasher
US5904166A (en) * 1996-10-17 1999-05-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Spray arm support for front-loading dishwashers
US5954073A (en) * 1997-12-22 1999-09-21 General Electric Company Wash apparatus for a dishwasher
EP0943281A2 (en) * 1998-02-23 1999-09-22 White Consolidated Industries, Inc. Feed system for a middle-level spray arm
EP0943281A3 (en) * 1998-02-23 2000-12-20 White Consolidated Industries, Inc. Feed system for a middle-level spray arm
US6454875B1 (en) 1999-06-30 2002-09-24 Pro Club Cleaner, L.L.C. Golf club cleaning apparatus
US20070289615A1 (en) * 2006-06-19 2007-12-20 Lg Electronics Inc. Washing arm and dishwasher having the same
US7673639B2 (en) * 2006-06-19 2010-03-09 Lg Electronics Inc. Washing arm and dishwasher having the same
CN101095608B (zh) * 2006-06-19 2010-06-02 Lg电子株式会社 洗涤臂和具有洗涤臂的洗碟机
US20090159103A1 (en) * 2007-12-19 2009-06-25 Whirlpool Corporation Dishwasher with sequencing corner nozzles
US7896977B2 (en) 2007-12-19 2011-03-01 Whirlpool Corporation Dishwasher with sequencing corner nozzles
US20100043825A1 (en) * 2008-08-19 2010-02-25 Whirlpool Corporation Sequencing diverter valve system for an appliance
US7914625B2 (en) * 2008-08-19 2011-03-29 Whirlpool Corporation Sequencing diverter valve system for an appliance
US20100275957A1 (en) * 2009-04-30 2010-11-04 Whirlpool Corporation Dishwasher with rotating zone wash sprayers
US8347898B2 (en) 2009-04-30 2013-01-08 Whirlpool Corporation Dishwasher with rotating zone wash sprayers
ITTO20120165A1 (it) * 2012-02-24 2013-08-25 Premark Feg Llc Pompa a doppia mandata e macchina lavastoviglie provvista di tale pompa
WO2013126481A1 (en) * 2012-02-24 2013-08-29 Premark Feg L.L.C. Double delivery pump and washing machine provided thereof
EP3085293A1 (de) * 2015-04-24 2016-10-26 BSH Hausgeräte GmbH Sprüharmanordnung und geschirrspülmaschine
US10531781B2 (en) 2017-09-29 2020-01-14 Midea Group Co., Ltd. Dishwasher with discretely directable tubular spray elements
US10524634B2 (en) 2017-09-29 2020-01-07 Midea Group Co., Ltd. Dishwasher with combined liquid and air sprayers
US11800963B2 (en) 2017-09-29 2023-10-31 Midea Group Co., Ltd. Dishwasher with discretely directable tubular spray elements
US11058279B2 (en) 2017-09-29 2021-07-13 Midea Group Co., Ltd. Dishwasher with discretely directable tubular spray elements
US10631708B2 (en) 2018-09-14 2020-04-28 Midea Group Co., Ltd. Dishwasher with docking arrangement for elevation-adjustable rack
US10765291B2 (en) 2018-09-14 2020-09-08 Midea Group Co., Ltd. Dishwasher with check valve in rotatable docking port
US11000176B2 (en) 2018-09-14 2021-05-11 Midea Group Co., Ltd. Dishwasher with rotatable diverter valve
US11071440B2 (en) 2018-09-14 2021-07-27 Midea Group Co., Ltd. Dishwasher with rack-mounted conduit return mechanism
US11045066B2 (en) 2019-03-11 2021-06-29 Midea Group Co., Ltd. Dishwasher with keyed coupling to rack-mounted conduit
US11399690B2 (en) 2019-09-30 2022-08-02 Midea Group Co., Ltd. Dishwasher with cam-based position sensor
US11633081B2 (en) 2019-09-30 2023-04-25 Midea Group Co., Ltd. Dishwasher with image-based diagnostics
US11877711B2 (en) 2019-09-30 2024-01-23 Midea Group Co., Ltd. Dishwasher with image-based detergent sensing
US11259681B2 (en) 2019-09-30 2022-03-01 Midea Group Co., Ltd Dishwasher with image-based diagnostics
US11896182B2 (en) 2019-09-30 2024-02-13 Midea Group Co., Ltd. Dishwasher with image-based object sensing
US11191416B2 (en) 2019-09-30 2021-12-07 Midea Group Co., Ltd. Dishwasher with image-based position sensor
US11464389B2 (en) 2019-09-30 2022-10-11 Midea Group Co., Ltd. Dishwasher with image-based detergent sensing
US12042111B2 (en) 2019-09-30 2024-07-23 Midea Group Co., Ltd. Dishwasher with cam-based position sensor
US11484183B2 (en) 2019-09-30 2022-11-01 Midea Group Co., Ltd. Dishwasher with image-based object sensing
US11026559B2 (en) 2019-09-30 2021-06-08 Midea Group Co., Ltd. Dishwasher with image-based fluid condition sensing
US11889966B2 (en) 2019-09-30 2024-02-06 Midea Group Co., Ltd. Dishwasher with image-based object sensing
US11766160B2 (en) 2019-09-30 2023-09-26 Midea Group Co., Ltd. Dishwasher with image-based position sensor
US11185209B2 (en) 2019-11-20 2021-11-30 Midea Group Co., Ltd. Dishwasher steam generator
US11864705B2 (en) 2019-11-20 2024-01-09 Midea Group Co., Ltd. Dishwasher thermal imaging system
US11202550B2 (en) 2019-11-20 2021-12-21 Midea Group Co., Ltd. Dishwasher thermal imaging system
US11497374B2 (en) 2020-02-19 2022-11-15 Midea Group Co., Ltd. Dishwasher with wall-mounted rotatable conduit
US11412912B2 (en) 2020-09-21 2022-08-16 Midea Group Co., Ltd. Dishwasher with tubular spray element slip ring alignment
US11484180B2 (en) 2020-11-11 2022-11-01 Midea Group Co., Ltd. Dishwasher with tubular spray element including multiple selectable spray patterns
US11826001B2 (en) 2022-02-15 2023-11-28 Midea Group Co., Ltd. Dishwasher with tubular spray element including elongated metal tube and retaining tab for mounting support member thereto

Also Published As

Publication number Publication date
NO118992B (ja) 1970-03-09
SE304585B (ja) 1968-09-30
DK117732B (da) 1970-05-25
GB1167846A (en) 1969-10-22
FR1571450A (ja) 1969-06-20
GB1167845A (en) 1969-10-22

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