US3896520A - Wet and dry vacuum cleaner - Google Patents

Wet and dry vacuum cleaner Download PDF

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Publication number
US3896520A
US3896520A US408920A US40892073A US3896520A US 3896520 A US3896520 A US 3896520A US 408920 A US408920 A US 408920A US 40892073 A US40892073 A US 40892073A US 3896520 A US3896520 A US 3896520A
Authority
US
United States
Prior art keywords
liquid
container
case
vacuum
flaccid
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
US408920A
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English (en)
Inventor
William H Williams
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.)
PULLMAN-HOLT Corp 10702 46TH STREET TAMPA FL 33617 A CORP OF
SPRAY BRITE
Original Assignee
SPRAY BRITE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SPRAY BRITE filed Critical SPRAY BRITE
Priority to US408920A priority Critical patent/US3896520A/en
Priority to DE19732366071 priority patent/DE2366071A1/de
Priority to DE2364772A priority patent/DE2364772C3/de
Priority to DE7345957U priority patent/DE7345957U/de
Priority to JP2488374A priority patent/JPS5516656B2/ja
Priority to GB41935/74A priority patent/GB1483625A/en
Priority to IT53305/74A priority patent/IT1019453B/it
Priority to FR7433269A priority patent/FR2248010B1/fr
Priority to CA211,977A priority patent/CA1025612A/en
Application granted granted Critical
Publication of US3896520A publication Critical patent/US3896520A/en
Assigned to PULLMAN-HOLT CORPORATION, 10702 46TH STREET, TAMPA, FL 33617 A CORP OF reassignment PULLMAN-HOLT CORPORATION, 10702 46TH STREET, TAMPA, FL 33617 A CORP OF ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: TP INDUSTRIAL, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/34—Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
    • A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits

Definitions

  • ABSTRACT A novel vacuum cleaner having:
  • a rigid vacuum-retaining outer case a flaccid dust-retaining container within said case, means for creating vacuum within said case around said container, said means being positioned above said casing and having an inlet communicating with said case.
  • baffle means within said case for separating said flaccid container from said inlet.
  • the novel vacuum cleaner comprises:
  • means for creating vacuum within said case in and around said flaccid container including an inlet communicating with said case
  • baffle means within said casing for separating said flaccid container from said inlet while permitting said liquid to flow freely therethrough and round the outside of said container whereby said container can fill with used liquid at a volume rate essentially equal to the rate of depletion of the unused liquid.
  • One can is for clean or unused liquid and the other is for used or spent liquid.
  • the volume of liquid space is exactly twice that of the initial clean liquid.
  • Such a cleaner has a larger bulk or volume to cleaning capacity ratio which is undesirable.
  • the larger the cleaner the greater is the labor required to fill, use and empty the container and the less adaptable the machine is for cleaning in tight or cramped spaces.
  • Another problem with existing machines is that the liquid pump and vacuum motor, both electrically powered, are positioned underneath the two cans for containing liquid. I have found this arrangement to pose a significant safety hazard since sloshing is always a possibility, and in the event it occurs, a short circuit or other electrical malfunction can occur resulting in injury to the operator and/or to the electrical components of the cleaner.
  • liquid discharged onto the carpet or rug is usually heated to about 160F. This temperature will cause blistering to the hands of the operator if contact is maintained over a prolonged period. To prevent this from happening in prior cleaners the liquid discharge line has been separated from the vacuum hand piece creating a tangle of tubes and lines as the operator moves about on the surface to be cleaned.
  • the present invention overcomes these problems in a surprising effective and simple way. Having overcome long-standing problems in the art, it is to be expected that this invention will be rapidly adopted in the cleaning equipment industry.
  • this invention comprises a rigid vacuumretaining outer case, a flaccid dust-retaining container within said case, means for creating vacuum within said case around said container, said means being positioned above said casing and having an inlet communicating with said case, means communicating with said flaccid container for drawing dirt from a surface to be cleaned into said container under the influence of vacuum, and baffle means within said case for separating said flaccid container from said inlet.
  • This invention also comprehends a rigid vacuumretaining outer case. the bottom of which is adapted to serve as a liquid reservoir, a flaccid dust-retaining container within said case, means for creating vacuum within said case in and around said flaccid container including an inlet communicating with said case, means communicating with said liquid reservoir for discharging liquid on a surface to be cleaned.
  • the outer casing acts as the clean liquid reservoir and the container for the spent or dirty liquid is flaccid or pliable so that the latter can expand with spent liquid as the supply of free liquid is used by application to the carpet or rug.
  • This construction reduces to nearly one-half the bulk of a vacuum cleaner of any given cleaning capacity. The weight of the machine and the cost of materials is also reduced.
  • the electrical components are all positioned above the liquid and are separated therefrom by an imperforate partition so that even in the event of sloshing, liquid is prevented from reaching such components.
  • the vacuum and liquid lines in the hand piece are joined in essential parallel relationship and surrounded by heat insulating material to protect the operator and eliminate the tangling and inconvenience associated with prior vacuum cleaners.
  • the present invention preferably embodies several novel features. However, this patent envisions the use of any one or all of them in a vacuum cleaner.
  • FIG. 1 is a top view of the novel vacuum cleaner of this invention.
  • FIG. 2 is a side view of the novel vacuum cleaner of this invention.
  • FIG. 3 is a plane view of the novel vacuum cleaner with the top cover portion removed.
  • FIG. 4 is a sectional view along the line 4-4 in FIG. 3 with the top cover portion in place.
  • FIG. 5 is a sectional view taken along the line 5-5 in FIG. 3 with the top cover portion in place.
  • FIG. 6 is a sectional view taken along the line 6-6 in FIG. 2.
  • FIG. 7 is a partial sectional view of the novel vacuum cleaner ofthis invention wherein the device is used as a'dry rather than a wet cleaner.
  • the novel vacuum cleaner included an upper external lid 10, a lower case 12, wheels 14, handles 16 and 18, a lock 20 for jointing the upper and lower portions, vacuum line 22, water or liquid line 24, vents 26, 28, 30 and 32,
  • continuously operating pump 48 pumps fresh water from reservoir 50 via line 52 through liquid line 38.
  • valve 40 When valve 40 is open, the liquid is discharged at nozzle 39.
  • valve 40 When valve 40 is closed, the liquid is returned via line 54 after pressure sensitive return check valve 55 in line 54 has opened.
  • the vacuum motor 56 having exhaust 57 maintains the inside of case 12 under vacuum.
  • the enclosing member 58 prevents the inadvertent drawing of water into the vacuum motor.
  • Member 58 is provided with air filter 60.
  • the used or dirty water is sucked up via line 36 into separator 62.
  • the dirty water then falls into the flexible imperforate vinyl bag 64.
  • Separating wall 66 is provided with perforations 68 and opening 69 so that clean or fresh water and air may flow therethrough to equalize the pressure inside and outside bag 64. Wall 66 also helps to hold bag 64 in place.
  • the bag 64 gradually fills out to full size of case 12 (up to separating wall 66) with used or dirty water.
  • lines 36 and 38 be encased in rigid insulating plastic foam members 70 and 72.
  • the foam is surrounded by smooth, non-porous outer casing members 74 and 76.
  • the fastener means 78 holds the foam members 70 and 72 in place.
  • this invention is also applicable to dry vacuum cleaning. As shown in FIG. 7, the water can be omitted, in which case the device otherwise is the same except that a disposable dust-retaining cloth collection bag 80 is used in lieu of bag 64.
  • the bag 80 is attached directly to neck 88.
  • the vacuum cleaner In operation, the vacuum cleaner is normally used as shown in FIG. 2.
  • the flow of liquid is controlled by valve 40.
  • the spent liquid is sucked up via line 36 of the hand piece into bag 64.
  • All of the electrical components are contained in lid and are separated from the liquid by flat horizontal partition 84 which forms a vacuum tight seal with the inside of case 12 by the gasket 86.
  • the bag 64 is preferably vinyl. However, a variety of flexible imperforate materials are suitable.
  • the hand piece can be disconnected from the floor unit for convenience of storage and movement when not in use.
  • a novel vacuum cleaner comprising:
  • means for creating vacuum within said case in and around said flaccid container including an inlet communicating with said case, means communicating with said liquid reservoir for discharging liquid on a surface to be cleaned,
  • baffle means within said casing for separating said flaccid container from said inlet while permitting said liquid to flow freely therethrough and round the outside of said container whereby said container can fill with used liquid at a volume rate essentially equal to the rate of depletion of the unused liquid.
  • said means for creating vacuum includes an electric motor and wherein said means communicating with said liquid reservoir for discharging liquid includes an electric pump, and further wherein said motor and said pump are both contained in a lid forming a vacuum-tight seal with said case and are located above said case, and are separated from said liquid by an imperforate partition.
  • said means communicating with said flaccid container for drawing said liquid and included dirt from said surface to be cleaned further includes a liquid cyclone-type separator which causes said liquid to drop vertically into said flaccid container.
  • said means communicating with said liquid reservoir for discharging liquid and said means communicating with said flaccid container for drawing said liquid and included dirt from said surface to be cleaned further includes a portion adapted to be gripped by the operator and being surrounded by a heat insulating foam material in generally parallel relationship.

Landscapes

  • Filters For Electric Vacuum Cleaners (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Cleaning By Liquid Or Steam (AREA)
US408920A 1973-10-23 1973-10-23 Wet and dry vacuum cleaner Expired - Lifetime US3896520A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US408920A US3896520A (en) 1973-10-23 1973-10-23 Wet and dry vacuum cleaner
DE2364772A DE2364772C3 (de) 1973-10-23 1973-12-27 Saugreiniger
DE7345957U DE7345957U (de) 1973-10-23 1973-12-27 Vakuumreiniger
DE19732366071 DE2366071A1 (de) 1973-10-23 1973-12-27 Vakuumreiniger
JP2488374A JPS5516656B2 (enrdf_load_html_response) 1973-10-23 1974-03-05
GB41935/74A GB1483625A (en) 1973-10-23 1974-09-26 Wet vacuum cleaner
IT53305/74A IT1019453B (it) 1973-10-23 1974-10-01 Pulitore sotto vuoto ad umido ed a secco
FR7433269A FR2248010B1 (enrdf_load_html_response) 1973-10-23 1974-10-03
CA211,977A CA1025612A (en) 1973-10-23 1974-10-22 Wet and dry vacuum cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US408920A US3896520A (en) 1973-10-23 1973-10-23 Wet and dry vacuum cleaner

Publications (1)

Publication Number Publication Date
US3896520A true US3896520A (en) 1975-07-29

Family

ID=23618324

Family Applications (1)

Application Number Title Priority Date Filing Date
US408920A Expired - Lifetime US3896520A (en) 1973-10-23 1973-10-23 Wet and dry vacuum cleaner

Country Status (7)

Country Link
US (1) US3896520A (enrdf_load_html_response)
JP (1) JPS5516656B2 (enrdf_load_html_response)
CA (1) CA1025612A (enrdf_load_html_response)
DE (3) DE2366071A1 (enrdf_load_html_response)
FR (1) FR2248010B1 (enrdf_load_html_response)
GB (1) GB1483625A (enrdf_load_html_response)
IT (1) IT1019453B (enrdf_load_html_response)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4158575A (en) * 1977-04-11 1979-06-19 Purex Corporation Cleaning and disinfecting hard surfaces
US4164055A (en) * 1977-04-11 1979-08-14 Purex Corporation Cleaning and disinfecting hard surfaces
WO1979000755A1 (en) * 1978-03-14 1979-10-04 Rasmussen Watex Carpet Cleanin Floor treatment unit
US4170805A (en) * 1976-06-21 1979-10-16 Yugen-Gaisha Waikei Giken Window glass-cleaning device
US4246676A (en) * 1979-08-15 1981-01-27 Alexander Hallsworth Liquid collecting vacuum container
US4287635A (en) * 1979-05-07 1981-09-08 Jacobs Paul G Wet and dry vacuum cleaner
USD264591S (en) 1980-03-17 1982-05-25 Jacobs Paul G Wet and dry vacuum cleaner
US4463474A (en) * 1982-06-07 1984-08-07 Jacobs Paul G Vacuum cleaner
US4686735A (en) * 1985-02-28 1987-08-18 Soeffker Eldred E Modular carpet cleaning apparatus
US4759094A (en) * 1987-10-19 1988-07-26 Hako Minuteman, Inc. Scrubbing machine
US4822430A (en) * 1985-08-22 1989-04-18 Carberry Victor V Method and apparatus for cleaning boiler burners
US5378354A (en) * 1993-11-09 1995-01-03 The Spencer Turbine Company Article/liquid separator
US5473792A (en) * 1995-01-04 1995-12-12 Rug Doctor, L.P. Steam cleaning machine
US5513415A (en) * 1995-01-20 1996-05-07 Rug Doctor, L.P. Steam cleaning device
US5526547A (en) * 1994-10-03 1996-06-18 William H. Williams Wet and dry vacuum cleaner
US5735017A (en) * 1996-03-29 1998-04-07 Bissell Inc. Compact wet/dry vacuum cleaner with flexible bladder
US5784755A (en) * 1996-01-18 1998-07-28 White Consolidated Industries, Inc. Wet extractor system
US6167587B1 (en) 1997-07-09 2001-01-02 Bissell Homecare, Inc. Upright extraction cleaning machine
US6438793B1 (en) 1997-07-09 2002-08-27 Bissell Homecare, Inc. Upright extraction cleaning machine
USRE39304E1 (en) * 1997-07-09 2006-09-26 Bissell Homecare, Inc. Upright extraction cleaning machine
USD533320S1 (en) 2004-11-11 2006-12-05 Castle Rock Industries, Inc. Floor treatment device
US20070067945A1 (en) * 2005-09-23 2007-03-29 Bissell Homecare, Inc. Vacuum cleaner with two stage filtration
US20070264129A1 (en) * 2006-05-09 2007-11-15 Ralf Pfeiffer Rollable pumping apparatus
US20080216278A1 (en) * 2007-03-09 2008-09-11 Bissell Homecare, Inc. Wet/dry vacuum cleaner
US20110023248A1 (en) * 2009-07-29 2011-02-03 Karcher North America, Inc. Selectively Adjustable Steering Mechanism for Use on a Floor Cleaning Machine
USD654234S1 (en) 2010-12-08 2012-02-14 Karcher North America, Inc. Vacuum bag
US8528142B1 (en) 2003-05-14 2013-09-10 Karcher North America, Inc. Floor treatment apparatus
US8887340B2 (en) 2003-05-14 2014-11-18 Kärcher North America, Inc. Floor cleaning apparatus
CN104146664A (zh) * 2014-08-26 2014-11-19 王宏 一种室内清扫机
USD907868S1 (en) 2019-01-24 2021-01-12 Karcher North America, Inc. Floor cleaner
US20220396420A1 (en) * 2021-06-14 2022-12-15 Target Brands, Inc. Shipping and stocking container
US11910989B2 (en) 2021-02-25 2024-02-27 Techtronic Cordless Gp Integrated cyclonic separator in a wet-dry vacuum
US12070181B2 (en) 2017-05-04 2024-08-27 Alfred Kärcher SE & Co. KG Floor cleaning appliance and method for cleaning a floor surface

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH617844A5 (en) * 1975-11-18 1980-06-30 Klaus Jaehrling Cleaning device for textiles which moves over the floor
JPS5484369A (en) * 1977-12-15 1979-07-05 Shingo Ogasawara Device for cleaning water feeding trough for poultry farming
FR2414898A1 (fr) * 1978-01-23 1979-08-17 Porte Ets R Aspirateur
DE2805145A1 (de) * 1978-02-07 1979-08-09 Siemens Ag Saugreinigungsgeraet
JPS55106131A (en) * 1979-02-07 1980-08-14 Riyousei Kk Vacuum cleaner
JPS55128649U (enrdf_load_html_response) * 1979-03-08 1980-09-11
JPS55106130A (en) * 1979-07-25 1980-08-14 Riyousei Kk Vacuum cleaner
JPS5623052U (enrdf_load_html_response) * 1979-07-26 1981-03-02
JPS56116950U (enrdf_load_html_response) * 1980-02-12 1981-09-07
DE19544892C1 (de) * 1995-12-01 1997-03-13 Kaercher Gmbh & Co Alfred Kombiniertes Saug- und Flüssigkeitsaustraggerät
WO2005041736A1 (ja) * 2003-10-31 2005-05-12 Sharp Kabushiki Kaisha 電気掃除機
JP6358820B2 (ja) * 2014-03-14 2018-07-18 有光工業株式会社 吸排水装置

Citations (3)

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US3034273A (en) * 1959-04-06 1962-05-15 James R Wallace Liquid collecting vacuum cleaner
US3056994A (en) * 1960-08-18 1962-10-09 John W Noble Vacuum cleaning and mopping apparatus
US3117337A (en) * 1957-04-12 1964-01-14 Hoover Co Unitary floor scrubbing and drying appliance

Family Cites Families (1)

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JPS4519126Y1 (enrdf_load_html_response) * 1966-07-25 1970-08-04

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117337A (en) * 1957-04-12 1964-01-14 Hoover Co Unitary floor scrubbing and drying appliance
US3034273A (en) * 1959-04-06 1962-05-15 James R Wallace Liquid collecting vacuum cleaner
US3056994A (en) * 1960-08-18 1962-10-09 John W Noble Vacuum cleaning and mopping apparatus

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170805A (en) * 1976-06-21 1979-10-16 Yugen-Gaisha Waikei Giken Window glass-cleaning device
US4158575A (en) * 1977-04-11 1979-06-19 Purex Corporation Cleaning and disinfecting hard surfaces
US4164055A (en) * 1977-04-11 1979-08-14 Purex Corporation Cleaning and disinfecting hard surfaces
WO1979000755A1 (en) * 1978-03-14 1979-10-04 Rasmussen Watex Carpet Cleanin Floor treatment unit
US4287635A (en) * 1979-05-07 1981-09-08 Jacobs Paul G Wet and dry vacuum cleaner
US4246676A (en) * 1979-08-15 1981-01-27 Alexander Hallsworth Liquid collecting vacuum container
USD264591S (en) 1980-03-17 1982-05-25 Jacobs Paul G Wet and dry vacuum cleaner
US4463474A (en) * 1982-06-07 1984-08-07 Jacobs Paul G Vacuum cleaner
US4686735A (en) * 1985-02-28 1987-08-18 Soeffker Eldred E Modular carpet cleaning apparatus
US4822430A (en) * 1985-08-22 1989-04-18 Carberry Victor V Method and apparatus for cleaning boiler burners
US4759094A (en) * 1987-10-19 1988-07-26 Hako Minuteman, Inc. Scrubbing machine
US5378354A (en) * 1993-11-09 1995-01-03 The Spencer Turbine Company Article/liquid separator
US5526547A (en) * 1994-10-03 1996-06-18 William H. Williams Wet and dry vacuum cleaner
US5473792A (en) * 1995-01-04 1995-12-12 Rug Doctor, L.P. Steam cleaning machine
US5513415A (en) * 1995-01-20 1996-05-07 Rug Doctor, L.P. Steam cleaning device
US5784755A (en) * 1996-01-18 1998-07-28 White Consolidated Industries, Inc. Wet extractor system
US5735017A (en) * 1996-03-29 1998-04-07 Bissell Inc. Compact wet/dry vacuum cleaner with flexible bladder
US6167587B1 (en) 1997-07-09 2001-01-02 Bissell Homecare, Inc. Upright extraction cleaning machine
US6286181B1 (en) 1997-07-09 2001-09-11 Bissell Homecare, Inc. Upright extraction cleaning machine
US6412141B2 (en) 1997-07-09 2002-07-02 Bissell Homecare, Inc. Upright extraction cleaning machine
US6438793B1 (en) 1997-07-09 2002-08-27 Bissell Homecare, Inc. Upright extraction cleaning machine
US6609269B2 (en) 1997-07-09 2003-08-26 Bissell Homecare, Inc. Upright extraction cleaning machine with unitary accessory hose duct
USRE39304E1 (en) * 1997-07-09 2006-09-26 Bissell Homecare, Inc. Upright extraction cleaning machine
US9757005B2 (en) 2003-05-14 2017-09-12 Kärcher North America, Inc. Floor treatment apparatus
US8528142B1 (en) 2003-05-14 2013-09-10 Karcher North America, Inc. Floor treatment apparatus
US9730566B2 (en) 2003-05-14 2017-08-15 Kärcher North America, Inc. Floor treatment apparatus
US10555657B2 (en) 2003-05-14 2020-02-11 Kärcher North America, Inc. Floor treatment apparatus
US9510721B2 (en) 2003-05-14 2016-12-06 Karcher North America, Inc. Floor cleaning apparatus
US9451861B2 (en) 2003-05-14 2016-09-27 Kärcher North America, Inc. Floor treatment apparatus
US9192276B2 (en) 2003-05-14 2015-11-24 Karcher North America, Inc. Floor cleaning apparatus
US9015887B1 (en) 2003-05-14 2015-04-28 Kärcher North America, Inc. Floor treatment apparatus
US8887340B2 (en) 2003-05-14 2014-11-18 Kärcher North America, Inc. Floor cleaning apparatus
USD536845S1 (en) 2004-11-11 2007-02-13 Castle Rock Industries, Inc. Floor treatment device
USD536146S1 (en) 2004-11-11 2007-01-30 Castle Rock Industries, Inc. Floor treatment device
USD533320S1 (en) 2004-11-11 2006-12-05 Castle Rock Industries, Inc. Floor treatment device
USD536846S1 (en) 2004-11-11 2007-02-13 Castle Rock Industries, Inc. Floor treatment device
USD536843S1 (en) 2004-11-11 2007-02-13 Castle Rock Industries, Inc. Floor treatment device
USD536842S1 (en) 2004-11-11 2007-02-13 Castle Rock Industries, Inc. Floor treatment device
USD536844S1 (en) 2004-11-11 2007-02-13 Castle Rock Industries, Inc. Floor treatment device
USD538492S1 (en) 2004-11-11 2007-03-13 Castle Rock Industries, Inc. Floor treatment device
USD543323S1 (en) 2004-11-11 2007-05-22 Castle Rock Industries, Inc. Floor treatment device
US8117713B2 (en) 2005-09-23 2012-02-21 Bissell Homecare, Inc. Vacuum cleaner with two stage filtration
US20070067945A1 (en) * 2005-09-23 2007-03-29 Bissell Homecare, Inc. Vacuum cleaner with two stage filtration
US20070264129A1 (en) * 2006-05-09 2007-11-15 Ralf Pfeiffer Rollable pumping apparatus
US7779505B2 (en) 2007-03-09 2010-08-24 Bissell Homecare, Inc. Wet/dry vacuum cleaner
US20080216278A1 (en) * 2007-03-09 2008-09-11 Bissell Homecare, Inc. Wet/dry vacuum cleaner
US20110023248A1 (en) * 2009-07-29 2011-02-03 Karcher North America, Inc. Selectively Adjustable Steering Mechanism for Use on a Floor Cleaning Machine
US8302240B2 (en) 2009-07-29 2012-11-06 Karcher North America, Inc. Selectively adjustable steering mechanism for use on a floor cleaning machine
USD654234S1 (en) 2010-12-08 2012-02-14 Karcher North America, Inc. Vacuum bag
CN104146664A (zh) * 2014-08-26 2014-11-19 王宏 一种室内清扫机
US12070181B2 (en) 2017-05-04 2024-08-27 Alfred Kärcher SE & Co. KG Floor cleaning appliance and method for cleaning a floor surface
USD907868S1 (en) 2019-01-24 2021-01-12 Karcher North America, Inc. Floor cleaner
US11910989B2 (en) 2021-02-25 2024-02-27 Techtronic Cordless Gp Integrated cyclonic separator in a wet-dry vacuum
US20220396420A1 (en) * 2021-06-14 2022-12-15 Target Brands, Inc. Shipping and stocking container
US11905105B2 (en) * 2021-06-14 2024-02-20 Target Brands, Inc. Shipping and stocking container

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GB1483625A (en) 1977-08-24
IT1019453B (it) 1977-11-10
JPS5516656B2 (enrdf_load_html_response) 1980-05-06
DE2364772B2 (de) 1979-01-04
DE2364772A1 (de) 1975-04-24
JPS5088856A (enrdf_load_html_response) 1975-07-16
FR2248010B1 (enrdf_load_html_response) 1977-07-08
DE7345957U (de) 1976-10-07
FR2248010A1 (enrdf_load_html_response) 1975-05-16
DE2364772C3 (de) 1979-08-30
CA1025612A (en) 1978-02-07
DE2366071A1 (de) 1977-11-03

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Owner name: PULLMAN-HOLT CORPORATION, 10702 46TH STREET, TAMPA

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