US2758461A - Washing machine - Google Patents

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Publication number
US2758461A
US2758461A US538864A US53886455A US2758461A US 2758461 A US2758461 A US 2758461A US 538864 A US538864 A US 538864A US 53886455 A US53886455 A US 53886455A US 2758461 A US2758461 A US 2758461A
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Prior art keywords
washing machine
fluid
fabrics
rotor
tann
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Expired - Lifetime
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US538864A
Inventor
Tann David
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Avco Manufacturing Corp
Original Assignee
Avco Manufacturing Corp
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
Priority to DEA17570A priority Critical patent/DE974673C/en
Priority claimed from DEA17570A external-priority patent/DE974673C/en
Priority to US422556A priority patent/US2929674A/en
Priority claimed from US422556A external-priority patent/US2929674A/en
Priority to US463172A priority patent/US2895232A/en
Application filed by Avco Manufacturing Corp filed Critical Avco Manufacturing Corp
Priority to US538864A priority patent/US2758461A/en
Application granted granted Critical
Publication of US2758461A publication Critical patent/US2758461A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • D06F58/06—Mountings for the rotating drums
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • D06F58/08—Driving arrangements
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting arrangements

Definitions

  • This invention relates to fabric cleaning devices, and particularly to a cleansing device which is operated at a constant speed automatically to produce a cleansing, rinsing, extracting and drying operation on fabrics.
  • extraction is produced at the same speed utilized for the cleansing operation.
  • a belt of absorbing material is disposed in engagement with the peripheral wall of the rotor in which the fabrics are tumbled as the belt and rotor are driven in synchronism.
  • the belt may be driven to drive the rotor at a predetermined speed to produce the proper raising and tumbling of the fabrics through the cleansing fluid.
  • the fluid is drained from the tub in which the rotor operates and extraction is produced by the absorption of the water in the fabrics through the permeable peripheral wall of the rotor by the belt which takes up the fluid which passes through the wall.
  • a pair of pressure rollers may be employed which function as wringer rolls for squeezing the fluid from the belt as it is advanced therethrough. Suction or other means may also be employed for removing the fluid from the fabrics and belt or other absorbing element.
  • the driving of the rollers produces the driving of the belt and the rotation of the rotor.
  • the belt may be disposed about the entire peripheral wall of the rotor and the rollers employed in engagement with the wall and belt to extract the fluid therefrom, or the belt may encompass the greater portion of the peripheral wall and have a portion extending therefrom which passes through the wringer rolls or 2,758,461 Patented Aug. 14, 1956 moved across fluid extracting means, or a short loop of belt may be utilized in engagement with only a portion of the peripheral wall.
  • a portion of the fabrics is constantly being raised along one side of the rotor or drum as the rotor is driven in rotation in one direction from which they tumble near the top of the rotor or drum downwardly across the rotor axis to the lower opposite side of the rotor.
  • the falling of the fabrics upon the pervious peripheral wall will cause the fluid thereof to be forced toward and through the wall onto the belt.
  • a short loop of belt it is preferably disposed at the portion of the periphery onto which the fabrics are tumbled.
  • the pervious wall may be made of moisture-absorbing material, such as fabric, or it may be made of metal having apertures therethrough, or it may be made of apertured metal having fabric on the inner wall to prevent buttons and string-ends of the fabrics from projecting through the apertures.
  • a solid wall may be employed having an inner fabric lining against which a roller is pressed as the rotor or drum is oscillated an amount less than 360 for squeezing the fluid directly from the inner fabric, the fluid thus extracted being conducted from the interior of the rotor.
  • the wall and belt provided with suction cups and apertures so that the suction cup, if in the belt, can be flattened, or the belt can be forced into the suction recesses of the peripheral wall, by a roller applied against the belt at the point where the fabrics are tumbled onto the rotor for producing a suction on the fluid in the fabrics.
  • Automatic means are employed for operating the machine through the cycle, which may be produced by a mechanical timing means or by electric timing means, both of which are old in the art.
  • Simplified control mechanism is utilized; for example, the initial fluid level is controlled manually, the depth of the rinse water is controlled by an overflow drain pipe provided at a predetermined height in the tub, and pulleys and belts are employed to produce the rotation of the rotor at a constant speed throughout the entire cycle of operation of the machine.
  • a sump may be employed for retaining the suds when a washing operation is employed, or the cleansing fluid when a cleansing operation is to be utilized, and it is to be understood that the machine may be employed as a clothes washing machine or as a dry-cleaning machine, depending upon the fluid which is employed. Therefore, it is to be understood that when a washing operation is described for a machine, a similar cycle of operation may be utilized for producing a dry-cleaning operation upon the fabrics.
  • a drying system for the fabrics after the cleansing operation so that a complete cycle of cleansing, rinsing, wetdrying and complete drying may be performed by the machine.
  • a blower is driven by the same motor which drives the rotor for producing a flow of air through the tub and container, over the fabrics.
  • the air is heated by a gas burner or by an electric heating element or other means before being directed into the machine.
  • a lint trap may be provided in the outlet conduit of the drying system which receives a predetermined depth of the fluid drained from the tub onto which the return air from the tub is directed so that the lint thereof may be.

Description

Aug. 14, 1956 D. TANN 2,758,461
WASHING MACHINE Filed on. e, 1955 9 Sheets-Sheet 1 12 Nji) i 200 I w j 5 3 I i 3 o I IN V EN TOR.
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WASHING MACHINE Filed Oct. 6, 1955 19 Sheets-Sheet 19 INVENTOR.
' in 1 24 7 f1 Y United States Patent WASHING MACHINE David Tann, Detroit, Mich., assignor to Avco Manufacturing Corporation, Cincinnati, Ohio, a corporation of Delaware Application October 6, 1955, Serial No. 538,864
58 Claims. ('Cl. 68--'19) This invention relates to fabric cleaning devices, and particularly to a cleansing device which is operated at a constant speed automatically to produce a cleansing, rinsing, extracting and drying operation on fabrics.
This application is a continuation-in-part and a consolidation of subject matter of my co-pending applications Serial No. 155,682, filed April 13, 1950, and Serial No. 306,118, filed August 25, 1952, both now abandoned. Reference is also made to my co-pending applications, Serial No. 422,556, filed April 12, 1954, and Serial No. 463,172, filed October 19, 1954, which are divisional applications based on Serial No. 155,682 and Serial No. 306,118, respectively.
Difliculty has been experienced when utilizing automatic types of fabric cleansing machines which incorporate damp-drying in the cycle of operation since the best known principle of extraction was that produced centrifugally by increasing the speed of rotation of the rotor. When low extracting speeds were employed, the extracting operation produced only a partial removal of excess fluid so that more than a pound of fluid remained in each pound of fabrics. When higher extracting speeds were employed, bringing the extracting ratio below a pound of fluid per pound of fabrics, damage due to stretching and tearing resulted to the fabrics because of the increased forces applied thereto. Further, the increased speed employed for extraction required costly clutch and gear mechanisms, as well as controls, and also made it necessary to anchor the machine in some manner to the floor. This required the actual bolting of the machine to the floor or the provision of cups or other means which prevented the machine from traveling thereover.
When practicing the present invention, extraction is produced at the same speed utilized for the cleansing operation. A belt of absorbing material is disposed in engagement with the peripheral wall of the rotor in which the fabrics are tumbled as the belt and rotor are driven in synchronism. During the washing or cleansing operation, the belt may be driven to drive the rotor at a predetermined speed to produce the proper raising and tumbling of the fabrics through the cleansing fluid. Thereafter, the fluid is drained from the tub in which the rotor operates and extraction is produced by the absorption of the water in the fabrics through the permeable peripheral wall of the rotor by the belt which takes up the fluid which passes through the wall.
A pair of pressure rollers may be employed which function as wringer rolls for squeezing the fluid from the belt as it is advanced therethrough. Suction or other means may also be employed for removing the fluid from the fabrics and belt or other absorbing element. The driving of the rollers produces the driving of the belt and the rotation of the rotor. The belt may be disposed about the entire peripheral wall of the rotor and the rollers employed in engagement with the wall and belt to extract the fluid therefrom, or the belt may encompass the greater portion of the peripheral wall and have a portion extending therefrom which passes through the wringer rolls or 2,758,461 Patented Aug. 14, 1956 moved across fluid extracting means, or a short loop of belt may be utilized in engagement with only a portion of the peripheral wall.
A portion of the fabrics is constantly being raised along one side of the rotor or drum as the rotor is driven in rotation in one direction from which they tumble near the top of the rotor or drum downwardly across the rotor axis to the lower opposite side of the rotor. The falling of the fabrics upon the pervious peripheral wall will cause the fluid thereof to be forced toward and through the wall onto the belt. When a short loop of belt is utilized, it is preferably disposed at the portion of the periphery onto which the fabrics are tumbled.
The pervious wall may be made of moisture-absorbing material, such as fabric, or it may be made of metal having apertures therethrough, or it may be made of apertured metal having fabric on the inner wall to prevent buttons and string-ends of the fabrics from projecting through the apertures. A solid wall may be employed having an inner fabric lining against which a roller is pressed as the rotor or drum is oscillated an amount less than 360 for squeezing the fluid directly from the inner fabric, the fluid thus extracted being conducted from the interior of the rotor.
It is also within the purview of the invention to have the wall and belt provided with suction cups and apertures so that the suction cup, if in the belt, can be flattened, or the belt can be forced into the suction recesses of the peripheral wall, by a roller applied against the belt at the point where the fabrics are tumbled onto the rotor for producing a suction on the fluid in the fabrics. It is apparent, therefore, that various types of structures may be employed for practicing the invention which embodies the extraction of fluid from fabrics within a rotor by absorbing the fluid from the fabrics and removing the fluid from the absorbing medium while operating the machine at a slow constant speed.
Automatic means are employed for operating the machine through the cycle, which may be produced by a mechanical timing means or by electric timing means, both of which are old in the art. Simplified control mechanism is utilized; for example, the initial fluid level is controlled manually, the depth of the rinse water is controlled by an overflow drain pipe provided at a predetermined height in the tub, and pulleys and belts are employed to produce the rotation of the rotor at a constant speed throughout the entire cycle of operation of the machine. A sump may be employed for retaining the suds when a washing operation is employed, or the cleansing fluid when a cleansing operation is to be utilized, and it is to be understood that the machine may be employed as a clothes washing machine or as a dry-cleaning machine, depending upon the fluid which is employed. Therefore, it is to be understood that when a washing operation is described for a machine, a similar cycle of operation may be utilized for producing a dry-cleaning operation upon the fabrics.
It is within the purview of the invention to utilize a drying system for the fabrics after the cleansing operation so that a complete cycle of cleansing, rinsing, wetdrying and complete drying may be performed by the machine. Preferably a blower is driven by the same motor which drives the rotor for producing a flow of air through the tub and container, over the fabrics. The air is heated by a gas burner or by an electric heating element or other means before being directed into the machine. A lint trap may be provided in the outlet conduit of the drying system which receives a predetermined depth of the fluid drained from the tub onto which the return air from the tub is directed so that the lint thereof may be.
US538864A 1950-04-13 1955-10-06 Washing machine Expired - Lifetime US2758461A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DEA17570A DE974673C (en) 1953-03-06 1953-03-06 Washing and drying machine
US422556A US2929674A (en) 1950-04-13 1954-04-12 Method of automatic washing and extracting
US463172A US2895232A (en) 1950-04-13 1954-10-19 Washing and drying machines
US538864A US2758461A (en) 1950-04-13 1955-10-06 Washing machine

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US15568250A 1950-04-13 1950-04-13
US30611852A 1952-08-25 1952-08-25
DEA17570A DE974673C (en) 1953-03-06 1953-03-06 Washing and drying machine
US422556A US2929674A (en) 1950-04-13 1954-04-12 Method of automatic washing and extracting
US463172A US2895232A (en) 1950-04-13 1954-10-19 Washing and drying machines
US538864A US2758461A (en) 1950-04-13 1955-10-06 Washing machine

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US463172A Expired - Lifetime US2895232A (en) 1950-04-13 1954-10-19 Washing and drying machines
US538864A Expired - Lifetime US2758461A (en) 1950-04-13 1955-10-06 Washing machine

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US463172A Expired - Lifetime US2895232A (en) 1950-04-13 1954-10-19 Washing and drying machines

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Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834432A (en) * 1956-04-12 1958-05-13 Thompson Prod Inc Lubrication system
US2858688A (en) * 1954-05-04 1958-11-04 Maytag Co Combined clothes washing machine and fluid extractor
US2864249A (en) * 1953-12-01 1958-12-16 Whirlpool Co Combination washing and drying machine
US2864250A (en) * 1953-12-03 1958-12-16 Whirlpool Co Combination washing and drying machine
US2865111A (en) * 1953-11-13 1958-12-23 Whirlpool Co Laundry drying machine
US2895232A (en) * 1950-04-13 1959-07-21 Tann David Washing and drying machines
US2915888A (en) * 1955-05-02 1959-12-08 Whirlpool Co Laundry machine
US2927379A (en) * 1957-07-26 1960-03-08 Tann David Drying drum with absorbent wall
US2929674A (en) * 1950-04-13 1960-03-22 Tann David Method of automatic washing and extracting
US2959044A (en) * 1959-03-23 1960-11-08 Gen Electric Lint filter for combination washer-dryer
US3017758A (en) * 1957-08-12 1962-01-23 Philco Corp Laundering machines
US3050974A (en) * 1961-02-06 1962-08-28 Maytag Co Combination washer-drier having an air flow water trap
US3231909A (en) * 1963-09-18 1966-02-01 Robert R Candor Laundry machine
US3257736A (en) * 1963-11-27 1966-06-28 Whirlpool Co Method of and apparatus for liquid extraction
US3387385A (en) * 1965-10-22 1968-06-11 Whirlpool Co Nozzle for liquid extraction apparatus
EP0548386A1 (en) * 1991-12-20 1993-06-30 Zanker GmbH Method and device for cleaning the exhaust air of a drum laundry drier
US20040112097A1 (en) * 2002-12-10 2004-06-17 Jeong In Cheol Washing machine
US20050028565A1 (en) * 2003-08-04 2005-02-10 Bsh Bosch Und Siemens Hausgerate Gmbh Washing machine
US20050155392A1 (en) * 2002-05-17 2005-07-21 Ozturk Umud E. Drum
US20050278983A1 (en) * 2004-03-01 2005-12-22 Maytag Corporation Filter vent for drying cabinet
US20070151312A1 (en) * 2005-12-30 2007-07-05 Bruce Beihoff C Modular fabric revitalizing system
US20070163093A1 (en) * 2005-12-30 2007-07-19 Tremitchell Wright Fabric revitalizing method uisng low absorbency pads
US20070163094A1 (en) * 2005-12-30 2007-07-19 Tremitchell Wright Fabric revitalizing method using mist
US20090064533A1 (en) * 2005-06-28 2009-03-12 Kazutoshi Nakiri Washer-dryer
US20090126423A1 (en) * 2007-11-21 2009-05-21 Sang Hun Bae Laundry treating apparatus
US20090158616A1 (en) * 2007-12-19 2009-06-25 Electrolux Home Products Laundry dryer having three roller drum support system and reversing idler assembly
US20090165323A1 (en) * 2007-12-27 2009-07-02 Daewoo Electronics Corporation Dryer
US20090205220A1 (en) * 2008-02-20 2009-08-20 Dewald Iii Charles Robert Dryer and adapter having ducting system
US7658015B1 (en) * 2007-05-15 2010-02-09 Gardell Christopher M Clothes drying device
US7735345B2 (en) 2005-12-30 2010-06-15 Whirlpool Corporation Automatic fabric treatment appliance with a manual fabric treatment station
US20110016928A1 (en) * 1997-04-29 2011-01-27 Whirlpool Corporation Modular fabric revitalizing system
US7921578B2 (en) * 2005-12-30 2011-04-12 Whirlpool Corporation Nebulizer system for a fabric treatment appliance
US7987614B2 (en) * 2004-04-12 2011-08-02 Erickson Robert W Restraining device for reducing warp in lumber during drying
US7997006B2 (en) * 2007-01-12 2011-08-16 Lg Electronics Inc. Laundry machine and control method thereof
US8424220B2 (en) 2006-06-12 2013-04-23 Lg Electronics Inc. Laundry dryer and method for controlling the same
US8931186B2 (en) 2006-02-20 2015-01-13 Lg Electronics Inc. Drying machine and method for controlling the same

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US3146196A (en) * 1962-09-13 1964-08-25 Gen Electric Laundry centrifuging machine with improved clothes container
DE19829874A1 (en) * 1998-07-03 1999-07-22 Pharmagg Systemtechnik Gmbh Spin dryer for use at end of automatic washing line

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US878777A (en) * 1906-12-06 1908-02-11 Sidney B Dane Clothes-drying machine.
US996637A (en) * 1908-08-15 1911-07-04 David Gessner Apparatus for extracting liquid from cloth.
US1117720A (en) * 1913-12-30 1914-11-17 American Hardware Corp Drying apparatus.
US1243473A (en) * 1914-05-02 1917-10-16 Franklin Murphy Process for cleaning car-cushions.
US1402020A (en) * 1918-02-14 1922-01-03 Frederick Kauffmann Laundry apparatus
US1607417A (en) * 1917-12-07 1926-11-16 Technicolor Motion Picture Squeegee apparatus
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US2209759A (en) * 1937-06-28 1940-07-30 Beloit Iron Works Absorbent press roll assembly
US2213303A (en) * 1939-01-14 1940-09-03 Us Rubber Co Drying apparatus
US2303123A (en) * 1940-05-03 1942-11-24 Western Electric Co Method of handling articles
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US2317144A (en) * 1942-07-06 1943-04-20 Fmc Corp Water eliminator
USRE22375E (en) * 1943-09-14 Cleaning textile and similar
US2361894A (en) * 1943-08-09 1944-10-31 Elmo H Williams Dehydrator
US2465214A (en) * 1946-10-09 1949-03-22 Du Pont Yarn drying apparatus
US2496517A (en) * 1948-06-04 1950-02-07 Jr John E Bradley Portable clothes drier
US2505657A (en) * 1945-02-09 1950-04-25 Du Pont Continuous processing machine for textile fabrics
US2514050A (en) * 1945-11-05 1950-07-04 John J Grebe Washing machine having means for heating incoming water
US2524177A (en) * 1945-04-03 1950-10-03 American Viscose Corp Means for treating filamentary materials with liquid
US2556153A (en) * 1947-01-18 1951-06-05 Ella M Collins Laundering apparatus

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US2143307A (en) * 1939-01-10 Method of laundering
US491545A (en) * 1893-02-14 Jean marie anatole gerard
USRE22375E (en) * 1943-09-14 Cleaning textile and similar
US878777A (en) * 1906-12-06 1908-02-11 Sidney B Dane Clothes-drying machine.
US996637A (en) * 1908-08-15 1911-07-04 David Gessner Apparatus for extracting liquid from cloth.
US1117720A (en) * 1913-12-30 1914-11-17 American Hardware Corp Drying apparatus.
US1243473A (en) * 1914-05-02 1917-10-16 Franklin Murphy Process for cleaning car-cushions.
US1607417A (en) * 1917-12-07 1926-11-16 Technicolor Motion Picture Squeegee apparatus
US1402020A (en) * 1918-02-14 1922-01-03 Frederick Kauffmann Laundry apparatus
US1636082A (en) * 1926-03-10 1927-07-19 Augustus R Stevens Drying machine
US1861244A (en) * 1927-07-18 1932-05-31 August G Schwieterman Washing machine
US1956589A (en) * 1932-01-04 1934-05-01 Emanuel J Perry Method of cleaning, drying, and aerating wearing apparel or the like and apparatus for carrying out said method
US2209759A (en) * 1937-06-28 1940-07-30 Beloit Iron Works Absorbent press roll assembly
US2213303A (en) * 1939-01-14 1940-09-03 Us Rubber Co Drying apparatus
US2307254A (en) * 1939-01-27 1943-01-05 American Machine & Metals Cleaning machine
US2303123A (en) * 1940-05-03 1942-11-24 Western Electric Co Method of handling articles
US2317144A (en) * 1942-07-06 1943-04-20 Fmc Corp Water eliminator
US2361894A (en) * 1943-08-09 1944-10-31 Elmo H Williams Dehydrator
US2505657A (en) * 1945-02-09 1950-04-25 Du Pont Continuous processing machine for textile fabrics
US2524177A (en) * 1945-04-03 1950-10-03 American Viscose Corp Means for treating filamentary materials with liquid
US2514050A (en) * 1945-11-05 1950-07-04 John J Grebe Washing machine having means for heating incoming water
US2465214A (en) * 1946-10-09 1949-03-22 Du Pont Yarn drying apparatus
US2556153A (en) * 1947-01-18 1951-06-05 Ella M Collins Laundering apparatus
US2496517A (en) * 1948-06-04 1950-02-07 Jr John E Bradley Portable clothes drier

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929674A (en) * 1950-04-13 1960-03-22 Tann David Method of automatic washing and extracting
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US2865111A (en) * 1953-11-13 1958-12-23 Whirlpool Co Laundry drying machine
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