US2652844A - Dishwasher - Google Patents

Dishwasher Download PDF

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Publication number
US2652844A
US2652844A US64295A US6429548A US2652844A US 2652844 A US2652844 A US 2652844A US 64295 A US64295 A US 64295A US 6429548 A US6429548 A US 6429548A US 2652844 A US2652844 A US 2652844A
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US
United States
Prior art keywords
water
impeller
casing
shaft
nozzle
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
US64295A
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English (en)
Inventor
Lester E Van Hise
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.)
Individual
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Individual
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Filing date
Publication date
Priority to NL75510D priority Critical patent/NL75510C/xx
Priority to NL737315800A priority patent/NL150399B/xx
Priority to BE492644D priority patent/BE492644A/xx
Application filed by Individual filed Critical Individual
Priority to US64295A priority patent/US2652844A/en
Priority to GB24477/49A priority patent/GB670754A/en
Priority to FR1001053D priority patent/FR1001053A/fr
Application granted granted Critical
Publication of US2652844A publication Critical patent/US2652844A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • 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
    • A47L15/02—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket
    • A47L15/06—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket by means of an impeller in the chamber
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers

Definitions

  • the present invention relates to dishwashers in general and particularly to a dishwasher 1ncorporating improved propellin and directing means for the cleansing water. More specifically the invention comprises a dishwasher in which cleansing water'is thrown with force against the dishes to be washed by motor-driven meansincluding directing means moved by water friction.
  • the dishwasher constructed in accordance with the present invention is characterized primarily by its simplicity and by the complete elimination of all seals subject to wear between its interior and exterior.
  • the driving electrical motor is carried by and removable with the casing cover, and in another preferred embodiment is recessed in the bottom of the casing itself.
  • a rotatable centrifugal impeller forces the water under pressure through an enclosing nozzle which directs it against the dishes to be cleaned, the nozzle movement being effected by a frictional force imparted by the water itself.
  • Another object of the invention is to provide an improved dishwasher in which the cleansing water is placed under pressure by a centrifugal impeller driven by an electrical motor and in which a water-directing nozzle is propelled by water friction.
  • Still another object of the invention 15 to provide a dishwasher unit in which a water-propel ling unit positioned below the water level is driven by a motor carried by the removable cover of the casing.
  • Still another object of the invention is to provide an improved dishwasher in which the waterpropelling unit is driven by an electrical motor within a housing recessed within the limits of the wash water and connected to the water-propelling means by power-transmitting means incorporating no water seals.
  • Figure 1 is aside elevational view of a dishwasher embodying the first preferred embodiment of the invention with certain parts broken away and shown in section;
  • Figure 2 is a partial top view of the construction of Figure 1 with certain parts broken away;
  • Figure 3 is a transverse section upon the line 3-3 of Figure 1 showing the separable coupling between the driving motor and the power-transmitting shaft to the centrifugal impeller;
  • Figure 4 is a view looking downwardly in the direction of the arrows upon the line 44 of Figure 1 and shows the rotatable Water-directing nozzle;
  • Figure 5 is a'section upon the line 5-5 of Figure 1 and shows the speed-controlling fins at the side of the rotatable nozzle;
  • Figure 6 is a view looking downwardly through the nozzle inlet in the direction of the arrows upon the line 6-6 of Figure 1;
  • Figure 7 is a partial vertical section upon the line 1 of Figure 1 through the valve unit.
  • Figure 8 is a partial'vertical section through a second preferred embodiment of the invention.
  • the first preferred embodiment of the-invention is illustrated and 1S seen to include a body, indicated generally by the reference character II, which comprises a cylindrical open-topped casing I2 and a removable cover 13.
  • a suitable dish-supporting rack indicated by the reference character [4, is positioned within the casing I2.
  • the water-propelling unit is generally indicated by thereference character l5: and is driven by a power source carried by cover 13 and comprising an electrical motor unit indicated generally by the reference character H.
  • the flow of Water into and from the body II is controlled by a manually. operable valve unit located at the side of easing I2 and indicated generally by-the reference'character 20.
  • Casing I2 is illustrated as being substantially rectangular in section although this shapeis-not of the essence.-- It is important,
  • the casing be made of a noncorrosive material such as stainless steel or other suitable metal, and that it have sufficient strength and rigidity to support the parts without undue vibration and with no deformation. Aiding in strengthening the casing and also providing a suitable seat for the removable cover I3 is a peripheral shelf 2I surrounding its upper edge.
  • cover I3 is shaped as to conform to casing shelf 2I and to provide a seal to prevent water leakage and it is embedded in a rubber bead 22.
  • a wide band or strap 24 extends across the top of cover I3 and downwardly at its sides. Band 24 performs not only the function of enhancing the appearance of the cover but also, through being recessed at 26 near its lower extremities, provides suitable handles by which the cover may be lifted.
  • Unit I5 comprises a centrifugal impeller 28 and an enclosing rotatable nozzle housing 29.
  • the impeller, itshousing, the shaft 3! and the drive shaft 3'! form a removable unit and will now be described.
  • ,Shaft 3I of water-propelling unit I5 is itself rotatably supported in a vertical bushing 32 fixedly mounted .upon the casing bottom wall 33.
  • a ball 34 at the lower end of shaft 3-I acts as a thrust bearing to carry the vertical load.
  • the impeller is itself formed with a central hub portion 36 rotatably enclosing shaft 3
  • a vertical shaft ,3! fixedly seats in the upper end of hub 36 forming a fixed closure for the open upper end thereof.
  • a second ball 39 is positioned in hub 3.5 between the ends of shafts 3
  • a port 39 connects the interior of hub 36 with the exterior to enable water to enter and to serve as a bearing lubricant.
  • in 'lower bushing 32 performs a similar function.
  • nozzle 29 is in fact a hollow, exteriorly smooth-surfaced casing circular in any horizontal transverse section. It includes a bottom wall 46 from which extends vertically a circular wall 4'! above which an inwardly extending frusto conical wall 48 merges into a horizontal top wall 49. Top wall 49 carries centrally a sleeve bushing 51 rotatably enclosing shaft .3 ⁇ while bottom wall 46 is provided centrally with an aperture defined by downwardly extending circular flange 52 forming an inlet port.
  • a spider 55 positioned in the port connects the bottom wall 46 to a cup-like sleeve 56 fixed to supporting shaft 3
  • shaft 3I is held upright by its supporting bushing 32 and ball 34 functioning as a thrust bearing and nozzle 29 is supported thereby in upright position, as illus trated in Figure l.
  • Shaft 3'! is held in alignment with shaft 3
  • Impeller 28 is rotatable with the power-transmitting shaft 31, being fixedly connected thereto, but nozzle 29 is rotatable independently with supporting shaft 3I under frictional force imparted by the swirling water therein.
  • 'Laterally extending fins or wings 58 extend from the sides of nozzle 29 to act as braking means to limit the speed of its rotation.
  • Impeller 28 draws water upwardly into the nozzle 29 through its inlet 52 to fill the surrounding nozzle and forces it upwardly and outwardly through a side slot 6I in face 48 and through a slot 62 in top wall 49.
  • is illustrated but it is to be understood that the number can be increased so long as the rate at which the water is permitted to escape is not so great as to reduce its striking form below an optimum.
  • slot .62 rotates in operation so that apertures GI and 62 face in all directions within 'body :II to direct streams of water against dishes in all parts thereof.
  • Rotational force is delivered to water-propelling .un'it I15 through the vertical shaft 31 from the motor unit I! carried by cover I3.
  • the latter is formed centrally with a downwardly recessed portion 64 which supports a motor 65 of suitable constant speed type.
  • the motor shaft 66 extends downwardly through portion .64 and carries one part 61 of a connector.
  • the part includes a downwardly and outwardly flared skirt 68 and radially extending teeth 69.
  • the upper end .of shaft 31 carries a cooperative connector member II the upper end of which is formed with teeth 12 in engagement with the teeth 69 of member Bl.
  • Connector elements 6,! and 'II are separable upon the cover I3 being lifted upwardly, and .in the positioning of the cover the skirt 68 functions to center the two elements by its contact with the peripheral edge of member II.
  • Driving motor 65 is positioned within a motor housing I6 resting at its lower edge upon the top surface of cover I3 and in appearance forming a continuation thereof. Openings 1! in the top .of casing I6 provide inlet openings for cooling air draw-n along the motor by the cooling air fan I8 mounted upon the upper end of its shaft 66.
  • a cylindrical bafiie plate I9 encircles the motor in spaced relationship to direct the air to the lower end thereof after which it travels outwardly and upwardly, in the path indicated by the arrows, and through the exhaust openings 8I in the side of easing I6.
  • Motor 65 is controlled by suitable electrical switch means and is adapted to be energized by the usual house current.
  • the wash water enters body II through the valve unit 2e positioned outside casing I2 and extending above the lower plane thereof.
  • the unit comprises an elongated inlet chamber 8
  • Aligned openings or passages 83 and 86 are sealed from the interior of chamber 6
  • Passage 84 is connected interiorly to the .chamber 8
  • valve 93 is retained in its inner position by a retaining pin 95 extended radially from its surface adjacent the inner surface of the side wall of casing I2. With the valve rotated to one angular position pin 95 is in alignment with a groove or slot 90 extended horizontally through the casing wall and through the island 82 of chamber 8!. Valve 93 can then be pulled horizontally by grasping its enlarged end until its ports 94 open exteriorly of the chamber.
  • valve unit 20 At its upper end inlet chamber 8I of valve unit 20 carries a nipple 96 seating the end of a flexible hose 9! through which water from a hydrant enters the unit. Below the nipple and above both passages 83 and 84 in the chamber a plurality of small apertures 98 or leak ports are provided through which water may escape in the event the level within the unit becomes too high and to make impossible, even in the presence of a vacuum in the hose 91, the reverse flow of water into the water system.
  • dishes, knives, forks, etc. are first positioned in rack I4 in casing I2, the top I3 being removed.
  • cover I3 is replaced, the operator preferably holding it by the handle recesses 26, the resilient bead 22 seating within the casing shelf 2I
  • the frusto conical skirt 68 telescopes the upper end of shaft 31, its contact with the edge of member II guiding the entire cover to its central seating position in which the teeth 12 of member II engage and mesh with corresponding teeth 69 on the member 61.
  • the unit is then filled with water from flexible hose 9'! attached to a hydrant faucet.
  • the water flows downwardly through the chamber BI and passes through ports 9I and 92 and valve ports 94 into the interior of valve 93 from the inner end of which it flows into casing I2, the level being permitted to rise until substantially at the height illustrated in Figure 1.
  • FIG 8 a construction constructed in accordance with a second preferred embodiment of the invention is illustrated and which is to be understood to be identical to that first described except in details referred to.
  • the embodiment of Figures 1 to '7, inclusive, is primarily a small portable unit adapted for household use, whereas the construction of Figure 8 is adapted for larger installations, installations in which the ready movability of the parts is not so essential and in which the weight of the driving motor would be objectionable if the motor formed a part of the cover and had to be removed each time a cleaning operation was to be performed.
  • the driving motor unit is indicated generally by the reference character WI and the motor itself by the character Hi8.
  • the motor is positioned within an up- Wardly extending housing I02 forming a part of the bottom wall of the casing II2 corresponding to casing I2 of the first embodiment.
  • the removable cover of this unit can be understood to be the-same as cover I3 of the first embodiment, omitting, of course, the driving motor unit construction, and the valve means 20 can be considered to be the same.
  • the motor housing I02 is, as stated, formed integrally with the bottom wall of the casing I I2 and comprises a cylindrical side wall and a frusto conical top wall I03.
  • the latter seats a vertical sleeve I04 threaded exterio-rly at its lower endto seat a nut I06 threaded thereon which serves to draw its enlarged head up into sealed relationship with wall I03.
  • the upper end of sleeve I04 ends above the normal water level with the machine inoperative to protect the driving motor I08 which is supported in the housing by suitable bracket means I09.
  • the motor'shaft III extends upwardly through sleeve I04 and carries immediately above the upper end thereof a collar I05 aflixed to the hub I I3 of centrifugal impeller II4 corresponding to impeller 28 of the first embodiment.
  • Impeller H4 is surrounded by a nozzle II6 substantialy identical to nozzle 29 of the first embodiment in all details including a bottom inlet defined by a flange Ill, and side and top apertures or jets II 8 and H9. Its top wall I2 I however, is provided centrally with a bushing I22 closed at its top and seating a thrust ballbearing I23 resting upon the upper end of shaft III.
  • Cooling air for the motor I08 is again circulated by a fan, indicated by the reference character I25, in this instance carried at the lower end of the shaft.
  • the fan upon the rotation of the motor shaft III forces air along the casing of motor I08 and between it and an enclosing baille plate I21.
  • the cooling air Upon reaching the upper end acsaera of the plate 121 the cooling air is directed downwardly between the plate and the housing N32 to make its escape.
  • a container comprising a casing having an open top, a removable cover seated thereon in sealed relationship, a rotary water impeller unit in said casing mounted upon the bottom wall thereof, said impeller unit including a rotary impeller and a freely rotatable enclosing nozzle spaced from said rotary impeller and having an inlet below the normal water line and an outlet above said line, a power-transmitting shaft fixed to said impeller and extended toward said cover, a driving motor for said shaft carried by said cover, and a separable connection between the shaft of said motor and said power transmitting shaft whereby upon the rotation of said motor shaft said impeller is rotated and said nozzle is also rotated by the drag of the water current set up by said impeller.
  • a container comprising a main casing and a removable cover seated thereon in sealed relationship, a water impeller unit positioned in said casing and supported'upon the bottom wall thereof and including a rotatable centrifugal impeller and a freely rotatable enclosing nozzle, a first vertical shaft rotatably supported by the bottom of said casing to which shaft said nozzle is fixedly connected, a second vertical shaft extended upwardly from said centrifugal impeller and with it supported for free rotation upon said first vertical shaft, and "means to rotate said centrifugal impeller comprising an electric motor carried by said cover and connected to the upper end of said second shaft whereby-said centrifugal impeller is directly driven by said motor and said nozzle is rotated by the frictional drag of thewater current set up therein by said impeller.
  • said guide means includean inverted frusto conical flange on one of said connector elements which is adapted to function as a funnel to guide said connectors into engaging relationship.
  • a container including an inverted housing, a sleeve sealed to a top Wall of said housing and extending vertically thereabove and above the normal water line, a driving motor positioned in said housing with its shaft extended upwardly through said sleeve, a centrifugal water impeller fixed to said shaft above said sleeve and extended therearound, and a nozzle comprising .-a casing enclosing said centrifugal impeller mounted on the upper end of said motor shaft for free rotation relative thereto and formed with an inlet opening immediately below said impeller and with an outlet opening thereabove and above the normal water line in said container.
  • a fluid pump unit comprising a centrifugal impeller rotatable about an axis, a'freely rotatable casing forming a nozzle enclosing said impeller and formed with an inlet on one side of said impeller and with an upwardly and outwardly facing outlet opening directly to the ambient upon the opposite side thereof for the purpose of directing fluid upwardly and outwardly therefrom, said casing being rotatable independently of said impeller under the frictional drag of the fluid flow set up therein by said impeller, and 'a support for said casing to mount it for free rotation including 'a bearing.
  • a fluid pump unit comprising a centrifugal impeller mounted for rotation about 'an axis, 'a rotary nozzle casing enclosing said impeller formed with an inlet upon one side thereof and with an outlet opening spaced from said inlet opening, means mounting said nozzle casing for rotation independent of the rotation'of said impeller under the frictional drag of fluid circulated therein by said impeller, and means upon the exterior of said nozzle housing to limit its speed of rotation in a surrounding body of fluid.
  • a liquid impeller unit comprising a rotary closed housing formed on one side with adownwardly facing central inlet and at a radially spaced point with an outwardly and upwardly facing outlet opening directly to the ambient, means mounting saidihousing for free and independent rotation about a vertical axis in a body of water the level of which is above said inlet and below said outlet, a rotary impeller in said housing, means mounting said impeller for independent rotation about said axis, characterized in that said impeller is of a capacity when running at normal speed to fill said housing with liquid the circulation of which effects rotation of said housing and the pressure on which expels said liquid with force upwardly and outwardly from said outlet.
  • an open-topped casing an open-topped casing, a removable cover seated on said casing, a rotary water impeller unit mounted on the bottom of said casing and including a, rotary impeller and a freely rotatable enclosing nozzle, said nozzle being in the form of a closed chamber having a downwardly facing inlet and an upwardly and outwardly facing outlet, a rotatable supporting shaft fixed to the bottom of said nozzle and a driving shaft extended through its top for free rotation relative thereto, means including a bearing aligning said shafts, said nozzle being adapted to rotate with its supporting shaft under the frictional force received from the water driven by said impeller.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US64295A 1948-12-09 1948-12-09 Dishwasher Expired - Lifetime US2652844A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL75510D NL75510C (en(2012)) 1948-12-09
NL737315800A NL150399B (nl) 1948-12-09 Inrichting voor het aaneenvoegen van het begin van een nieuwe papierrol aan het eind van een oude of afgewikkelde papierrol.
BE492644D BE492644A (en(2012)) 1948-12-09
US64295A US2652844A (en) 1948-12-09 1948-12-09 Dishwasher
GB24477/49A GB670754A (en) 1948-12-09 1949-09-23 Improvements in or relating to apparatus for washing dishes and the like
FR1001053D FR1001053A (fr) 1948-12-09 1949-12-06 Appareil à laver les assiettes et analogues et pompe à fluide utilisée dans cet appareil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64295A US2652844A (en) 1948-12-09 1948-12-09 Dishwasher

Publications (1)

Publication Number Publication Date
US2652844A true US2652844A (en) 1953-09-22

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Application Number Title Priority Date Filing Date
US64295A Expired - Lifetime US2652844A (en) 1948-12-09 1948-12-09 Dishwasher

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US (1) US2652844A (en(2012))
BE (1) BE492644A (en(2012))
FR (1) FR1001053A (en(2012))
GB (1) GB670754A (en(2012))
NL (2) NL75510C (en(2012))

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2722225A (en) * 1954-02-24 1955-11-01 Rca Corp Automatic dishwasher
US2959180A (en) * 1957-05-17 1960-11-08 Alfred G Butler Dishwasher
US2969665A (en) * 1955-10-20 1961-01-31 Philco Corp Fabric washing machine
US3016841A (en) * 1960-11-03 1962-01-16 Practical Mfg Co Fluid supply means and drive therefor for parts washers and the like
US3060948A (en) * 1958-02-21 1962-10-30 Electrolux Ab Dishwashing machine
US3126024A (en) * 1964-03-24 jellies
US3126898A (en) * 1964-03-31 Dishwasher ventilating system
US3910499A (en) * 1973-03-15 1975-10-07 Seb Sa Small-sized dishwashing machine
US5142887A (en) * 1991-04-24 1992-09-01 Priem Richard J Resonant wave-jet agitator washing machine
US5209246A (en) * 1990-12-28 1993-05-11 Whirlpool Corporation Sealing system for a dishwasher
US5220933A (en) * 1991-12-06 1993-06-22 Albers Terry A Cleaning tank
CN107485350A (zh) * 2017-09-18 2017-12-19 广东赛普电器制造有限公司 一种水槽式洗碗机专用呼吸器
CN110878755A (zh) * 2018-09-05 2020-03-13 宁波方太厨具有限公司 一种用于清洗机的水泵

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2221109A1 (fr) * 1973-03-15 1974-10-11 Calor Sa Petite machine a laver la vaisselle
CN107320045B (zh) * 2017-08-15 2023-10-13 苏州弗乐卡电器科技发展有限公司 一种洗碗机

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1145607A (en) * 1914-05-16 1915-07-06 Albert Wood Morris Dish-washing machine.
US1256557A (en) * 1917-05-16 1918-02-19 Thaddeus W Heermans Washing-machine.
US1637376A (en) * 1927-08-02 Dishwashing machine
US1645815A (en) * 1925-05-21 1927-10-18 Charles A Murdoch Combined sink and dishwashing machine
US1831775A (en) * 1929-07-10 1931-11-10 Waldemar L Lindgren Dish washing machine
US1927943A (en) * 1929-01-28 1933-09-26 John E Long Dishwasher
US1938302A (en) * 1931-11-23 1933-12-05 Walker Dishwasher Corp Dishwashing machine
US2022637A (en) * 1933-02-21 1935-11-26 Walker Dishwasher Corp Washing apparatus
GB446490A (en) * 1933-10-24 1936-04-23 Tord Erik Daniel Bilde Improvements in dish washing machines
US2044132A (en) * 1932-03-03 1936-06-16 Conover Company Dishwashing machine
US2139229A (en) * 1935-07-01 1938-12-06 American Machine & Metals Inc Washing machine
US2250974A (en) * 1940-08-02 1941-07-29 Edison General Elec Appliance Washing apparatus
US2264713A (en) * 1938-11-22 1941-12-02 Westinghouse Electric & Mfg Co Apparatus for washing tableware or the like
US2351342A (en) * 1939-04-12 1944-06-13 Electrolux Ab Dishwasher

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1637376A (en) * 1927-08-02 Dishwashing machine
US1145607A (en) * 1914-05-16 1915-07-06 Albert Wood Morris Dish-washing machine.
US1256557A (en) * 1917-05-16 1918-02-19 Thaddeus W Heermans Washing-machine.
US1645815A (en) * 1925-05-21 1927-10-18 Charles A Murdoch Combined sink and dishwashing machine
US1927943A (en) * 1929-01-28 1933-09-26 John E Long Dishwasher
US1831775A (en) * 1929-07-10 1931-11-10 Waldemar L Lindgren Dish washing machine
US1938302A (en) * 1931-11-23 1933-12-05 Walker Dishwasher Corp Dishwashing machine
US2044132A (en) * 1932-03-03 1936-06-16 Conover Company Dishwashing machine
US2022637A (en) * 1933-02-21 1935-11-26 Walker Dishwasher Corp Washing apparatus
GB446490A (en) * 1933-10-24 1936-04-23 Tord Erik Daniel Bilde Improvements in dish washing machines
US2139229A (en) * 1935-07-01 1938-12-06 American Machine & Metals Inc Washing machine
US2264713A (en) * 1938-11-22 1941-12-02 Westinghouse Electric & Mfg Co Apparatus for washing tableware or the like
US2351342A (en) * 1939-04-12 1944-06-13 Electrolux Ab Dishwasher
US2250974A (en) * 1940-08-02 1941-07-29 Edison General Elec Appliance Washing apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126898A (en) * 1964-03-31 Dishwasher ventilating system
US3126024A (en) * 1964-03-24 jellies
US2722225A (en) * 1954-02-24 1955-11-01 Rca Corp Automatic dishwasher
US2969665A (en) * 1955-10-20 1961-01-31 Philco Corp Fabric washing machine
US2959180A (en) * 1957-05-17 1960-11-08 Alfred G Butler Dishwasher
US3060948A (en) * 1958-02-21 1962-10-30 Electrolux Ab Dishwashing machine
US3060946A (en) * 1958-02-21 1962-10-30 Electrolux Ab Dishwashing machine
US3016841A (en) * 1960-11-03 1962-01-16 Practical Mfg Co Fluid supply means and drive therefor for parts washers and the like
US3910499A (en) * 1973-03-15 1975-10-07 Seb Sa Small-sized dishwashing machine
US5209246A (en) * 1990-12-28 1993-05-11 Whirlpool Corporation Sealing system for a dishwasher
US5142887A (en) * 1991-04-24 1992-09-01 Priem Richard J Resonant wave-jet agitator washing machine
US5220933A (en) * 1991-12-06 1993-06-22 Albers Terry A Cleaning tank
CN107485350A (zh) * 2017-09-18 2017-12-19 广东赛普电器制造有限公司 一种水槽式洗碗机专用呼吸器
CN107485350B (zh) * 2017-09-18 2024-01-23 广东赛普智能制造股份有限公司 一种水槽式洗碗机专用呼吸器
CN110878755A (zh) * 2018-09-05 2020-03-13 宁波方太厨具有限公司 一种用于清洗机的水泵

Also Published As

Publication number Publication date
GB670754A (en) 1952-04-23
FR1001053A (fr) 1952-02-19
NL75510C (en(2012))
BE492644A (en(2012))
NL150399B (nl)

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