US20050102788A1 - Method and apparatus for distributing fragrance on a cleaning surface - Google Patents

Method and apparatus for distributing fragrance on a cleaning surface Download PDF

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Publication number
US20050102788A1
US20050102788A1 US10/714,808 US71480803A US2005102788A1 US 20050102788 A1 US20050102788 A1 US 20050102788A1 US 71480803 A US71480803 A US 71480803A US 2005102788 A1 US2005102788 A1 US 2005102788A1
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US
United States
Prior art keywords
cleaning
solution
tank
housing
recovery tank
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.)
Abandoned
Application number
US10/714,808
Other languages
English (en)
Inventor
Irvin Pritts
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.)
Techtronic Floor Care Technology Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US10/714,808 priority Critical patent/US20050102788A1/en
Assigned to HOOVER COMPANY, THE reassignment HOOVER COMPANY, THE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PRITTS, IRVIN M.
Priority to CA002467286A priority patent/CA2467286C/fr
Priority to GB0419508A priority patent/GB2407967B/en
Priority to CNA2004100909203A priority patent/CN1618387A/zh
Publication of US20050102788A1 publication Critical patent/US20050102788A1/en
Assigned to HEALTHY GAIN INVESTMENTS LIMITED reassignment HEALTHY GAIN INVESTMENTS LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: THE HOOVER COMPANY
Abandoned 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
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4083—Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/04—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/50—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by odorisation

Definitions

  • the present invention relates to a method and apparatus for distributing fragrance on a cleaning surface.
  • cleaning machines such as carpet extractors that distribute cleaning solution composed of detergent mixed with water to wash the cleaning surfaces.
  • Some extractors can also distribute cleaning solution composed of clean water to rinse the cleaning surface in addition to cleaning solution composed of detergent mixed with water.
  • a clean water supply tank and a detergent supply tank are used for distributing either type of cleaning solution.
  • Some cleaning machines further have mixing valves to selectively control the ratio of detergent and clean water in the cleaning solution. It would be desirable to provide a cleaning machine that distributes a cleaning solution that has fragrance attributes to produce the desired smell.
  • a portable cleaning apparatus for cleaning a surface includes a housing for movement along the cleaning surface.
  • a solution distribution system is mounted at least in part to the housing and includes a solution distributor operatively connected to the housing for distributing a cleaning solution onto the cleaning surface, a first solution tank for holding the cleaning solution, and a solid chemical containing a fragrance emitting substance provided in the first solution tank.
  • a portable cleaning apparatus for cleaning a surface includes a housing for movement along the cleaning surface.
  • a solution distribution system is mounted at least in part to the housing and includes a solution distributor operatively connected to the housing for distributing a cleaning solution onto the cleaning surface, a first solution tank for holding the cleaning solution, and a body of a fragrance emitting substance combined with an effervescent substance provided in said first solution tank.
  • a method for applying a fragrance emitting substance to a cleaning surface includes the steps of placing a solid chemical composed of the fragrance emitting substance into a first solution tank in an extraction cleaning machine which includes the solution tank, placing a body of liquid in the solution tank to dissolve the solid chemical composed of fragrance emitting substance and emit the fragrance from the solid chemical, providing a distributor operatively connected to said extraction cleaning machine for distributing a liquid onto the cleaning surface in fluid communication with the first solution tank, and distributing the liquid containing the dissolved solid chemical onto the cleaning surface through the distributor as the extraction cleaning machine is moved over the surface.
  • FIG. 1 is a perspective view of a carpet extractor embodying the present invention
  • FIG. 2 is an exploded view of the base assembly of the carpet extractor illustrating the principal elements thereof;
  • FIG. 3 is a schematic view of the fluid distribution system of the embodiment shown in FIG. 1 ;
  • FIG. 4 is a magnified view of a bristle from the brush assembly of the carpet extractor of FIG. 1 .
  • FIG. 1 depicts a perspective view of an upright carpet extractor 60 according to one embodiment of the present invention.
  • the upright carpet extractor 60 comprises an upright handle assembly 62 pivotally connected to the rear portion of the floor-engaging portion or base assembly 64 that moves and cleans along a surface 74 such as a carpet.
  • a supply tank assembly 76 is removably mounted to the handle portion 62 of the extractor 60 and includes a combination carrying handle and securement latch 78 pivotally connected thereto.
  • a combined air/water separator and recovery tank 80 removably sets atop base assembly 64 and is surrounded by a hood portion 82 .
  • the base assembly 64 includes a frame assembly 83 which comprises a generally unitary molded rear body 84 having two laterally displaced wheels 66 (the left wheel 66 L being shown in FIG. 1 ) rotatably attached to the rear of the rear body 84 via axles 67 .
  • a motor/fan assembly 90 used to provide the suction power.
  • the motor/fan assembly 90 is in fluid communication with the recovery tank 80 .
  • a suitable motor/fan assembly is shown in U.S. Pat. No. 5,500,977, the disclosure of which is incorporated by reference.
  • the base assembly 64 includes a brush assembly 70 having a plurality of rotating scrub brushes 72 ( FIG. 3 ) for scrubbing the surface.
  • An air driven turbine 98 providing motive power for the brush assembly 70 is mounted on the front portion of the rear body 84 .
  • the brush assembly 70 is contained in a brush cavity 73 formed in the underside of the front body 92 .
  • a suitable brush assembly 70 is taught in U.S. Pat. No. 5,867,857; the disclosure which is incorporated herein by reference.
  • Brush assembly 70 is operated by a suitable gear train (or other known means), not shown, contained in transmission housing 100 .
  • a suitable air turbine driven gear train is taught in U.S. Pat. No. 5,443,362; the disclosure of which is incorporated by reference.
  • the brushes 72 include a plurality of bristles 201 ( FIG. 3 ) arranged in bundles that are compressively inserted into blind bores of the scrub brushes 72 .
  • each bristle 201 is composed of an antimicrobial additive or material 203 , made by AgION Technologies, L.L.C., that suppresses the growth of various kinds of bacteria, mold and fungus.
  • the material contains an inorganic substance having silver 205 in its ionic form.
  • the antimicrobial material includes a zeolite carrier, or delivery system that allows a controlled and effective release of the silver ions 205 .
  • the moisture film 207 on the bristle 201 causes a controlled release of the silver ions 205 at a slow and steady rate to provide efficacy against bacteria 209 .
  • the silver ions 205 appear to be effective against microbes in preventing cellular respiration, preventing cell replications, and causing cell wall destruction.
  • This antimicrobial material 203 can endure temperatures of up to 800 degrees Celsius and pH values between 3 and 10, while retaining full antimicrobial effectiveness even during aggressive processing techniques.
  • a floor suction nozzle assembly 124 is removably mounted to the hood portion 82 of the base assembly 64 .
  • the floor suction nozzle assembly 124 includes a front plate 126 secured to a rear plate 128 that in combination define dual side ducts 130 , 132 separated by a tear drop shaped opening 134 as best depicted in FIG. 2 .
  • the opening 134 extends down from an accessory hose opening 136 , formed in the front portion 126 , to a predetermined distance above the suction inlet 138 of the suction nozzle 124 .
  • a door 168 is pivotally connected to the front portion 126 and releasably fits into the complimentary recess 167 to cover the opening 136 when the carpet extractor 60 is used to clean the floor.
  • the front and rear plates or portions 126 , 128 are secured to one another by ultrasonic welding and screw fasteners, however, other types of ways to secure them such as for example, by adhesive, can be used.
  • the distance above the suction inlet 138 for the opening 134 is about one fourth of an inch, which provides a flow path for liquid and dirt pick up in the center of the suction inlet 138 of the nozzle 124 .
  • the side ducts 130 , 132 converge upstream into a recessed throat portion 149 ( FIG. 1 ), which terminates into an upwardly extending rear duct 150 .
  • the rear duct 150 is positioned in a complementary recess portion 152 formed in the front lower portion of the recovery tank 80 .
  • the duct 150 fluidly connects with the recovery tank 80 .
  • the recovery tank 80 sets down over and surrounds a portion of the motor cover 230 of base frame assembly 64 . It is preferred that recovery tank 80 set atop and surround a portion of the motor fan assembly 90 thereby providing sound insulating properties and assisting in noise reduction of the extractor.
  • the recovery tank lid assembly 301 incorporates therein the air/fluid separator.
  • the motor/fan assembly 90 extracts the air and soiled liquid from the carpet and draws it through the suction nozzle 124 and side suction ducts 130 , 132 to the lid assembly 301 of the recovery tank 80 where separation of the air and liquid occurs.
  • a unshaped carrying handle 332 is pivotally connected to the upper portion of the recovery tank 80 .
  • the supply tank assembly 76 comprises a clean water supply tank 620 and a detergent supply tank 622 with cap 720 ( FIG. 3 ) adhesively mounted to the clean water supply tank 620 as depicted in FIG. 1 .
  • the supply tank assembly 76 includes a combination carrying handle and tank securement latch 78 providing a convenient means for carrying the tank and/or securing the tank to the extractor handle assembly 62 .
  • the supply tank assembly 76 is positioned upon a bottom base 624 , which with the tank assembly 76 is removably mounted to the handle.
  • a solid thin cylindrically shaped tablet 211 placed within the clean water tank 620 on the bottom wall is a solid thin cylindrically shaped tablet 211 composed of a fragrance emitting material.
  • the tablet 211 is composed of the fragrance emitting material, sodium bicarbonate, and citric acid.
  • other bicarbonates or acids could also be used.
  • cornstarch could be added also.
  • This formulation also provides an effervescent action when water is added to the clean water tank 620 , which dissolves the tablet 211 .
  • Each tablet 211 further contains a water softening conditioner to treat one gallon of hard water.
  • Each tablet 211 typically weighs between 6 and 8 grams and produces a pH in the range of 6 to 8 when dissolved in one gallon of water. However, the weight and pH could be other values if desired.
  • the fragrance emitting material can contain one of several fragrances or popular aromatherapy oils such as, for example, jasmine, lavender or vanilla odor.
  • Such a design produces the desired fragrance aroma in the area where the extractor cleans, after the cleaning solution with the dissolved fragrance tablet 211 is distributed on the cleaning surface 74 . If a stronger odor is desired, an additional tablet is placed in the clean water tank 620 .
  • the supply tank assembly 76 is first removed from the handle 62 and the tablet 211 is placed within the clean water tank 620 on the bottom wall.
  • the detergent tank 622 is filled with detergent and the clean water tank 620 is filled with hot water, which dissolves the tablet 211 and produces an effervescent action.
  • the supply tank assembly 76 is mounted back on the handle 62 .
  • the carpet extractor 60 is turned on to distribute the cleaning solution on the cleaning surface 74 and then to recover the cleaning solution and dirt from the cleaning surface 74 .
  • the tablet 211 could be placed in the detergent tank 622 instead of the clean water tank 620 .
  • FIG. 3 illustrates the overall solution distribution system, which will be described below.
  • the carpet extractor 60 includes a solution hose 794 that fluidly connects the outlet of the clean water tank 620 to a shut off valve 800 used for selectively turning on and off the flow of clean water containing the dissolved fragrance tablet 211 .
  • Another solution hose 790 fluidly connects the outlet of the water tank 620 to an inlet 812 of a pressure actuated shut off valve 804 .
  • the outlet of the detergent tank 622 is fluidly connected to an inlet 523 of a mixing Tee 796 via a suitable flexible hose 798 .
  • the pressure actuated shut off valve 804 is fluidly connected between the clean water tank 620 and the mixing valve 796 for turning off and on the flow of water.
  • This shut off valve 804 is opened and closed by outside pressure via a conduit 806 connected between it and the outlet 807 of a pump 808 through a Tee 817 .
  • the valve 804 includes a pressure port 822 fluidly connected to the outlet 807 of a pump 808 .
  • the outlet of the valve 814 is fluidly connected to an inlet 521 of the mixing valve 796 via hose 815 . It should be known that clean water tank 620 could be fluidly connect to the outlet 814 of the valve 804 with the inlet 812 of the valve 804 being fluidly connect to the mixing Tee 796 so that fluid could flow the opposite direction if desired.
  • the valve 804 In operation, when the pressure at the pressure port 822 is below a predetermined value such as between 7 to 10 psi, the valve 804 opens to allow water to flow in both directions. Such a pressure value at the pressure port 822 occurs when the main shut off valve 820 is opened and the pump 808 is turned on. The pump 808 also pressurizes the water containing the dissolved fragrance tablet mixed with detergent to draw it to the distributor 792 . When the pressure exceeds a second predetermined value such as between 20 to 30 psi, the valve 804 closes. This would occur if the main shut off valve 820 is closed and the pump is turned on. Thus, with the valve 804 closed, the cleaning solution is prevented from flowing through it.
  • Various types of pumps can be used such as a piston pump, gear pump or centrifugal pump.
  • Outlet 525 of the mixing Tee 796 is fluidly connected via flexible hose 823 to the inlet of the pump 808 , which provides pressure to draw the cleaning solution to the distributor 792 , when it is turned on.
  • a relief valve 809 is fluidly connected across the pump 808 to limit the pressure at the outlet 807 of the pump 808 to a predetermine value.
  • the outlet 807 of the pump 808 is fluidly connected to the main shut off valve 820 via flexible hoses 825 , 874 and 876 .
  • Both of the shut off valves 800 , 820 are in the form of a solenoid valve, however, other electrical actuated valves could be also used.
  • the valves 800 , 820 are operated by a trigger switch 821 as depicted in FIG. 1 .
  • the trigger switch 821 is pivotally connected to the upper handle portion 358 approximately near a closed looped handgrip 824 .
  • Slide switch 858 is used to select one of the shut off valve 800 , 822 to be opened and closed by the trigger switch 821 .
  • Slide switch 856 is the main power switch, which turns on and off the suction motor 90 and pump 808 .
  • the cleaning solution containing the water and dissolved fragrance tablet 211 or the detergent mixed with it flows to their associated shut off valves 800 , 820 .
  • the cleaning liquid distributor 792 evenly distributes the cleaning solution to each of the rotary scrub brushes 72 .
  • a solution discharge valve 877 allows the mixed detergent and clean water containing the dissolved fragrance tablet to flow through an integrally formed nipple 218 and a detachable solution tube 216 to a hand-held cleaning attachment (not shown) and dispense by typical spray means.
  • a user pivots the handle 62 in an incline position while moving the carpet extractor 60 over the surface to clean it.
  • the carpet extractor 60 distributes the cleaning solution containing the dissolved fragrance tablet 211 to the carpeted surface using the brushes 72 and substantially simultaneously extracts it along with the dirt on the carpet in a continuous operation.
  • soiled cleaning solution is extracted from the carpet by the suction nozzle 124 and transported into the recovery tank 80 where the liquid and air are separated.
  • a vacuum is created in the recovery tank 80 by the suction motor 90 , which draws air from the recovery tank 80 and exhausts the air to the carpeted surface 74 .
  • the tablet could be placed in cleaning machine that has one solution tank such as that disclosed by previously mentioned U.S. Pat. No. 5,500,977.
  • the present invention has been described by way of example using the illustrated embodiments. Upon reviewing the detailed description and the appended drawings, various modifications and variations of the embodiments will become apparent to one of ordinary skill in the art. All such obvious modifications and variations are intended to be included in the scope of the present invention and of the claims appended hereto.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Detergent Compositions (AREA)
US10/714,808 2003-11-13 2003-11-13 Method and apparatus for distributing fragrance on a cleaning surface Abandoned US20050102788A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/714,808 US20050102788A1 (en) 2003-11-13 2003-11-13 Method and apparatus for distributing fragrance on a cleaning surface
CA002467286A CA2467286C (fr) 2003-11-13 2004-05-14 Methode et dispositif de distribution de parfum sur une surface de nettoyage
GB0419508A GB2407967B (en) 2003-11-13 2004-09-02 Method and apparatus for distributing a fragrance on a cleaning surface
CNA2004100909203A CN1618387A (zh) 2003-11-13 2004-11-10 在清洁表面散布香气的方法和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/714,808 US20050102788A1 (en) 2003-11-13 2003-11-13 Method and apparatus for distributing fragrance on a cleaning surface

Publications (1)

Publication Number Publication Date
US20050102788A1 true US20050102788A1 (en) 2005-05-19

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ID=33160067

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/714,808 Abandoned US20050102788A1 (en) 2003-11-13 2003-11-13 Method and apparatus for distributing fragrance on a cleaning surface

Country Status (4)

Country Link
US (1) US20050102788A1 (fr)
CN (1) CN1618387A (fr)
CA (1) CA2467286C (fr)
GB (1) GB2407967B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060123587A1 (en) * 2004-12-10 2006-06-15 Parr Richard S Stacked tank arrangement for a cleaning apparatus
US20060123585A1 (en) * 2004-12-10 2006-06-15 O'neal David L Recovery tank arrangement for a cleaning apparatus
US20060123586A1 (en) * 2004-12-10 2006-06-15 Wegelin Jackson W Extractor stretch hose
US20060123583A1 (en) * 2004-12-10 2006-06-15 Parr Richard S Lift off tank handle latch
US20060288518A1 (en) * 2005-02-17 2006-12-28 Bissell Homecare, Inc. Surface cleaning apparatus with cleaning fluid supply
US20090235481A1 (en) * 2008-03-20 2009-09-24 Harald Gosebruch Floor cleaning machine with a water softening device
US8370991B2 (en) 2010-09-01 2013-02-12 Techtronic Floor Care Technology Limited Supply tank assembly for an extractor cleaning machine
US11744427B2 (en) 2019-11-05 2023-09-05 Betco Corporation Floor cleaning machine with solid chemical delivery system

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
AU2012201055B2 (en) 2011-03-01 2014-07-24 Bissell Inc. Lift off deep cleaner
CN105395130A (zh) * 2015-12-15 2016-03-16 美的集团股份有限公司 蒸汽吸尘器
US20230043567A1 (en) 2021-08-03 2023-02-09 Sharkninja Operating Llc Surface cleaning device with odor management

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US4554698A (en) * 1984-07-09 1985-11-26 The Hoover Company Dispensing arrangement for an upright vacuum cleaner
US5358655A (en) * 1991-04-12 1994-10-25 Henkel Kommanditgesellschaft Auf Aktien Process for the production of detergent tablets for dishwashing machines
US5389344A (en) * 1993-10-05 1995-02-14 Ecolab Inc. Variable concentration, solid chemical dispenser
US5411716A (en) * 1993-10-05 1995-05-02 Ecolab Inc. Solid detergent dispenser for floor scrubber machine
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7725983B2 (en) 2004-12-10 2010-06-01 Techtronic Floor Care Technology Limited Recovery tank arrangement for a cleaning apparatus
US20060123585A1 (en) * 2004-12-10 2006-06-15 O'neal David L Recovery tank arrangement for a cleaning apparatus
US20060123586A1 (en) * 2004-12-10 2006-06-15 Wegelin Jackson W Extractor stretch hose
US20060123583A1 (en) * 2004-12-10 2006-06-15 Parr Richard S Lift off tank handle latch
US7870637B2 (en) 2004-12-10 2011-01-18 Techtronic Floor Care Technology Limited Stacked tank arrangement for a cleaning apparatus
US20060123587A1 (en) * 2004-12-10 2006-06-15 Parr Richard S Stacked tank arrangement for a cleaning apparatus
US7657964B2 (en) 2004-12-10 2010-02-09 Techtronic Floor Care Technology Limited Lift off tank handle latch
US7784148B2 (en) 2005-02-17 2010-08-31 Bissell Homecare, Inc. Surface cleaning apparatus with cleaning fluid supply
US20060288518A1 (en) * 2005-02-17 2006-12-28 Bissell Homecare, Inc. Surface cleaning apparatus with cleaning fluid supply
US7966690B2 (en) 2005-02-17 2011-06-28 Bissell Homecare, Inc. Surface cleaning with recovery tank float control
US7979951B2 (en) 2005-02-17 2011-07-19 Bissell Homecare, Inc. Surface cleaning apparatus with recovery tank
US7979955B2 (en) 2005-02-17 2011-07-19 Bissell Homecare, Inc. Surface cleaning apparatus with recovery tank
US8505155B2 (en) 2005-02-17 2013-08-13 Bissell Homecare, Inc. Surface cleaning apparatus with recovery tank latch
US20090235481A1 (en) * 2008-03-20 2009-09-24 Harald Gosebruch Floor cleaning machine with a water softening device
US8370991B2 (en) 2010-09-01 2013-02-12 Techtronic Floor Care Technology Limited Supply tank assembly for an extractor cleaning machine
US11744427B2 (en) 2019-11-05 2023-09-05 Betco Corporation Floor cleaning machine with solid chemical delivery system

Also Published As

Publication number Publication date
CA2467286C (fr) 2008-09-23
GB0419508D0 (en) 2004-10-06
GB2407967A (en) 2005-05-18
GB2407967B (en) 2007-04-04
CA2467286A1 (fr) 2005-05-13
CN1618387A (zh) 2005-05-25

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