US20180228337A1 - Floor cleaning machine including a sanitize mode - Google Patents
Floor cleaning machine including a sanitize mode Download PDFInfo
- Publication number
- US20180228337A1 US20180228337A1 US15/950,639 US201815950639A US2018228337A1 US 20180228337 A1 US20180228337 A1 US 20180228337A1 US 201815950639 A US201815950639 A US 201815950639A US 2018228337 A1 US2018228337 A1 US 2018228337A1
- Authority
- US
- United States
- Prior art keywords
- mode
- cleaning machine
- floor cleaning
- tank
- extractor
- 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
Links
Images
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
-
- 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
- A47L11/4011—Regulation of the cleaning machine by electric means; Control systems and remote control systems therefor
-
- 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
-
- 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
- A47L11/4038—Disk shaped surface treating tools
-
- 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
- A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
- A47L11/4055—Movement of the tools or the like perpendicular to the cleaning surface for lifting the tools to a non-working position
-
- 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
- A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
- A47L11/4058—Movement of the tools or the like perpendicular to the cleaning surface for adjusting the height of the tool
-
- 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
- A47L11/4072—Arrangement of castors or wheels
-
- 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
-
- 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
- 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
-
- 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
-
- 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
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
- A47L9/2842—Suction motors or blowers
Definitions
- the present invention relates to floor cleaning machines and, more particularly, to floor cleaning machines having multiple modes of operation.
- a floor cleaning machine such as an extractor, typically sprays or otherwise distributes cleaning fluid onto a surface to wash the surface. The machine then draws the cleaning fluid and dirt from the surface into a recovery tank. Some floor cleaning machines can also deliver water to the surface to rinse the surface before and/or after the cleaning fluid is applied.
- the invention provides a floor cleaning machine for cleaning a surface.
- the floor cleaning machine includes a body, a distribution nozzle supported by the body, a supply tank assembly coupled to the body in fluid communication with the distribution nozzle, a suction nozzle supported by the body, and a suction source in fluid communication with the suction nozzle.
- the suction source is operable to draw fluid and dirt from the surface through the suction nozzle.
- the floor cleaning machine also includes a recovery tank coupled to the body in fluid communication with the suction source to receive and store fluid and dirt drawn through the suction nozzle.
- the floor cleaning machine is operable in a first mode to wash the surface and is operable in a second mode to sanitize the surface.
- FIG. 1 is a perspective view of a floor cleaning machine.
- FIG. 2 is a perspective view of a supply tank assembly for use with the floor cleaning machine shown in FIG. 1 .
- FIG. 3 is a top view of the supply tank assembly of FIG. 2 .
- FIG. 4 is a perspective view of another floor cleaning machine.
- FIG. 5 is a side view of a portion of the floor cleaning machine shown in FIG. 4 , the floor cleaning machine including a distribution nozzle in a first position.
- FIG. 6 is a side view of the portion of the floor cleaning machine of FIG. 5 with the distribution nozzle in a second position.
- FIG. 7 is a top view of a suction nozzle for use with the floor cleaning machine shown in FIG. 4 , the suction nozzle including a cover member in a first position to cover a bleed hole.
- FIG. 8 is a top view of the suction nozzle of FIG. 7 with the cover member in a second position to open the bleed hole.
- FIG. 9 is a perspective view of the floor cleaning machine of FIG. 4 configured to alternately receive a first suction nozzle and a second suction nozzle.
- FIG. 10 is a side perspective view of a portion of another floor cleaning machine, the floor cleaning machine including a port for receiving a bottle of cleaning solution.
- FIG. 11 is a side view of the portion of the floor cleaning machine shown in FIG. 10 .
- FIG. 12 is a schematic of a portion of a floor cleaning machine, the floor cleaning machine including a distribution nozzle in a first position.
- FIG. 13 is a schematic of the portion of the floor cleaning machine of FIG. 12 with the distribution nozzle in a second position.
- FIG. 14 is a schematic of a portion of another floor cleaning machine, the floor cleaning machine including a deflector in a first position.
- FIG. 15 is a schematic of the portion of the floor cleaning machine of FIG. 14 with the deflector in a second position.
- FIG. 16 is a schematic of a portion of another floor cleaning machine, the floor cleaning machine including a suction nozzle with a port.
- FIG. 17 is a schematic of the portion of the floor cleaning machine of FIG. 16 with a blocking member positioned in the port of the suction nozzle.
- FIG. 18 illustrates a brush assembly and a cam member for use with a floor cleaning machine, the brush assembly and the cam member being in a first position.
- FIG. 19 illustrates the brush assembly and the cam member in a second position.
- FIG. 20 is a perspective view of a portion of another floor cleaning machine.
- FIGS. 21-24 illustrate various views of a lift member for use with the floor cleaning machine of FIG. 20 .
- FIG. 25 illustrates a method of connecting the lift member of FIGS. 21-24 to the floor cleaning machine of FIG. 20 .
- FIG. 26 is a side view of the portion of the floor cleaning machine of FIG. 20 with the lift member connected.
- FIG. 27 is a schematic of a portion of another floor cleaning machine, the floor cleaning machine including a grooming member.
- FIG. 28 is a plan view of the grooming member of FIG. 27 .
- FIG. 1 illustrates a floor cleaning machine 20 , such as an extractor.
- the extractor 20 is an upright extractor operable to a clean a surface, such as, for example, a floor.
- the extractor 20 may be adapted to clean a variety of surfaces, such as carpets, hardwood floors, tiles, or the like.
- the extractor 20 distributes or sprays cleaning fluid onto the surface to clean the surface.
- the extractor 20 then draws the cleaning fluid and any dirt off of the surface, leaving the surface relatively clean and dry.
- cleaning fluid refers to a detergent, a sanitizer, or a mixture of water and detergent/sanitizer.
- the extractor 20 is capable of operating in multiple modes of operation.
- the extractor 20 can operate in a first mode to wash a surface and in a second mode to sanitize the surface.
- the extractor 20 delivers a cleaning solution composed of detergent (or a mixture of detergent and water) onto the surface.
- the extractor 20 can lift dirt, mud, stains, and other debris from the surface.
- the extractor 20 delivers a second cleaning solution composed of sanitizer (or a mixture of sanitizer and water) onto the surface.
- the sanitizer may be, for example, VITAL OXIDE chlorine dioxide sanitizer manufactured by Vital Solutions, LLC.
- the sanitizer may be a powder or solid that is dissolved in a water tank or a cleaning solution tank of the extractor 20 .
- the extractor 20 can kill bacteria and other types of microorganisms on the surface.
- the extractor 20 kills at least 90% of microorganisms on the surface.
- the extractor 20 kills at least 99% of microorganisms on the surface when operating in the sanitize mode.
- the extractor 20 kills at least 99.99% of microorganisms on the surface when operating in the sanitize mode.
- the cleaning solutions used in the wash mode and in the sanitize mode may be the same.
- more cleaning solution may be delivered to the surface, a higher concentration of cleaning solution may be delivered to the surface, and/or more cleaning solution may be left on (i.e., not recovered from) the surface during sanitizing, as further discussed below.
- the extractor 20 can further operate in a third mode to rinse the surface.
- the extractor 20 delivers water onto the surface without detergent or sanitizer.
- the extractor 20 dilutes and washes away residual detergent or sanitizer from the surface.
- the extractor 20 includes a body 24 , a distribution nozzle 28 coupled to the body 24 , a distributor 32 coupled to the body 24 in fluid communication with the distribution nozzle 28 , a supply tank assembly 36 coupled to the body 24 in fluid communication with the distribution nozzle 28 and the distributor 32 , a suction nozzle 40 coupled to the body 24 , a suction source 44 coupled to the body 24 in fluid communication with the suction nozzle 40 , and a recovery tank 48 coupled to the body 24 in fluid communication with the suction source 44 .
- the body 24 includes a base or foot 52 and a handle 56 pivotally coupled to the foot 52 .
- the foot 52 is movable along a surface to be cleaned and supports the other components of the extractor 20 .
- Two wheels 60 (only one of which is shown) are coupled to the foot 52 to facilitate movement of the foot 52 along the surface.
- the wheels 60 are idle wheels.
- the wheels 60 may be driven wheels.
- the handle 56 extends from the foot 52 and is pivotable between a generally vertical, or upright, storage position (shown in FIG. 1 ) and an infinite number of non-vertical, or inclined, operating positions. Pivoting the handle 56 to one of the operating positions facilitates moving (e.g., pushing and pulling) the foot 52 along the surface.
- the distribution nozzle 28 and the suction nozzle 40 are supported by the foot 52 adjacent a lower surface of the foot 52 .
- the distribution nozzle 28 directs cleaning solution from the supply tank assembly 36 onto the surface to be cleaned.
- the suction nozzle 40 draws fluid and dirt from the surface back into the recovery tank 48 of the extractor 20 .
- one or more electrically- or pneumatically-actuated brushes may also be supported on the lower surface of the foot 52 adjacent the nozzles 28 , 40 .
- the distributor 32 draws cleaning solution from the supply tank assembly 36 and delivers the cleaning solution onto the surface to be cleaned through the distribution nozzle 28 .
- the distributor 32 includes a receptacle, a pump, a valve, and conduits connecting the supply tank assembly 36 to the distribution nozzle 28 .
- the pump may be omitted from the distributor 32 such that cleaning fluid is gravity-fed from the supply tank assembly 36 .
- at least a portion of the distributor 32 is supported by and positioned within the foot 52 , but may alternatively be positioned elsewhere on the extractor body 24 .
- the supply tank assembly 36 is removably supported by the handle 56 on top of the recovery tank 48 .
- a handle 64 extends from a front surface of the supply tank assembly 36 to facilitate handling the assembly 36 apart from the extractor body 24 .
- the illustrated supply tank assembly 36 includes three tanks 68 , 72 , 76 .
- the tanks 68 , 72 , 76 are integrally formed as a single unit.
- the tanks 68 , 72 , 76 may be separate structures that are permanently or releasably coupled together.
- the illustrated tanks 68 , 72 , 76 define discrete volumes for storing cleaning solution and/or water such that the cleaning solutions and water do not mix within the assembly 36 .
- the first tank 68 can store a detergent
- the second tank 72 can store a sanitizer
- the third tank 76 can store water.
- the water tank 76 can be separate from the supply tank assembly 36 such that the assembly 36 only includes two integrally-formed tanks.
- Each of the illustrated tanks 68 , 72 , 76 includes an outlet 80 , 84 , 88 that communicates with the distributor 32 to draw the corresponding fluid out of the tank 68 , 72 , 76 .
- the outlets 80 , 84 , 88 may also be used to refill the tanks 68 , 72 , 76 when the supply tank assembly 36 is removed from the body 24 .
- the suction source 44 draws fluid and dirt from the surface being cleaned through the suction nozzle 40 and into the recovery tank 48 .
- the suction source 44 includes a fan that generates a vacuum to draw the fluid and dirt through the suction nozzle 40 .
- the suction source 44 is supported by and positioned within the foot 52 , but may alternatively be positioned elsewhere on the extractor body 24 .
- the recovery tank 48 is removably supported by the handle 56 below the supply tank assembly 36 .
- the recovery tank 48 receives and temporarily stores fluid and dirt drawn up from the surface being cleaned through the suction nozzle 40 . When full, the recovery tank 48 may be removed from the body 24 and emptied.
- a handle 92 extends from a front surface of the recovery tank 48 to facilitate handling the tank 48 . In other embodiments, the recovery tank 48 may alternatively be supported elsewhere on the extractor body 24 .
- the illustrated extractor 20 is operable in three modes: a wash mode, a sanitize mode, and a rinse mode.
- the distributor 32 draws a first cleaning solution from the supply tank assembly 36 (e.g., a detergent from the first tank 68 of the assembly 36 ).
- the distributor 32 directs the first cleaning solution to the distribution nozzle 28 , which delivers the solution onto the surface being cleaned.
- the distributor 32 draws a second cleaning solution from the supply tank assembly 36 (e.g., a sanitizer from the second tank 72 of the assembly 36 ).
- the distributor 32 directs the second cleaning solution to the distribution nozzle 28 , which delivers the solution onto the surface being cleaned.
- the distributor 32 draws water from the supply tank assembly 36 (e.g., from the third tank 76 of the assembly 36 ).
- the distributor 32 directs the water to the distribution nozzle 28 , which delivers the solution onto the surface being cleaned.
- water may be drawn from the third tank 76 in all three modes to appropriately dilute the detergent or the sanitizer.
- the extractor 20 includes an actuator 96 coupled to the body 24 .
- the actuator 96 is a mode selector that allows a user to manually switch between the wash, sanitize, and rinse modes.
- the illustrated actuator 96 is supported on the foot 52 of the extractor 20 but may alternatively be supported on the handle 56 or on the supply tank assembly 36 .
- the actuator 96 includes a rotatable dial. In other embodiments, other suitable actuators may also or alternatively be employed.
- the actuator 96 is coupled to the distributor 32 to alter operation of the distributor 32 .
- the actuator 96 may be coupled to a three-way valve 100 of the distributor 32 that is in communication with the three outlets 80 , 84 , 88 of the tanks 68 , 72 , 76 ( FIGS. 2 and 3 ). Actuating the actuator 96 between the modes actuates the valve 100 to selectively open the outlets 80 , 84 , 88 .
- the outlet 80 of the first tank 68 may be opened, while the outlets 84 , 88 of the second and third tanks 72 , 76 are closed.
- the outlet 84 of the second tank 72 may be opened, while the outlets 80 , 88 of the first and third tanks 68 , 76 are closed.
- the outlet 88 of the third tank 76 may be opened, while the outlets 80 , 84 of the first and second tanks are closed 68 , 72 .
- the outlet 88 of the third tank 76 remains open for all the modes and the outlets 80 , 84 of the first and second tanks 68 , 72 may be selectively closed, depending on the selected mode.
- the extractor 20 may include separate fluid paths for each of the tanks 68 , 72 , 76 .
- FIG. 4 illustrates another extractor 120 .
- the illustrated the extractor 120 includes a body 124 , a distribution nozzle 128 ( FIGS. 5 and 6 ) coupled to the body 124 , a distributor 132 coupled to the body 124 in fluid communication with the distribution nozzle 128 , a supply tank assembly 136 coupled to the body 124 in fluid communication with the distribution nozzle 128 and the distributor 132 , a suction nozzle 140 coupled to the body 124 , a suction source 144 coupled to the body 124 in fluid communication with the suction nozzle 140 , and a recovery tank 148 coupled to the body 124 in fluid communication with the suction source 144 .
- the body 124 includes a foot 152 and a handle 156 pivotally coupled to the foot 152 . Except as further described below, the components of the extractor 120 generally operate in a similar manner as the components of the extractor 20 discussed above.
- the supply tank assembly 136 only includes two tanks.
- the first tank stores a cleaning solution
- the second tank stores water.
- the first tank is filled with a detergent when using the extractor 120 in a wash mode and is filled with a sanitizer when using the extractor 120 in a sanitize mode.
- the supply tank assembly 136 and the distributor 132 are configured to mix detergent or sanitizer from the first tank with water from the second tank on demand. That is, the detergent or sanitizer is mixed with water to create a cleaning solution when the fluids are drawn out of the first tank by the distributor 132 during operation of the extractor 120 , rather than being pre-mixed with water inside the supply tank assembly 136 .
- the extractor 120 leaves behind more cleaning solution on the surface when in the sanitize mode than when in the wash mode. Leaving more cleaning solution on the surface when in the sanitize mode allows the solution to kill more microorganisms on the surface, thereby sanitizing the surface.
- the extractor 120 can achieve this result by, for example, adjusting how the cleaning solution is delivered to the surface, reducing the recovery rate or suction efficiency of the extractor 120 , and/or increasing the concentration or volume of cleaning solution being delivered onto the surface.
- the extractor 120 switches between the wash mode and the sanitize mode by changing the angle at which cleaning solution is delivered to the surface.
- the distribution nozzle 128 is coupled to and supported by the foot 152 of the extractor 120 .
- the distribution nozzle 128 includes a single nozzle having a single outlet 160 .
- the distribution nozzle 128 may include multiple nozzles or may include a bar having multiple outlets to deliver cleaning solution onto the surface.
- the illustrated distribution nozzle 128 is movable relative to the foot 152 between a first position ( FIG. 5 ) for the wash mode and a second position ( FIG. 6 ) for the sanitize mode.
- the outlet 160 of the distribution nozzle 128 When in the first position, the outlet 160 of the distribution nozzle 128 is oriented at an acute angle A relative to a plane 164 defined by a lower surface 168 of the foot 152 (i.e., the surface 168 of the foot 152 that is generally parallel to and facing the surface being cleaned). In this position, the distribution nozzle 128 delivers cleaning solution onto the surface at the acute angle A.
- the outlet 160 of the distribution nozzle 128 is oriented generally perpendicular to the plane 164 defined by the lower surface 168 of the foot 152 .
- the suction nozzle 140 may be oriented at a smaller acute, but non-perpendicular angle when in the second position.
- the acute angle A is between about 30 degrees and about 60 degrees.
- the outlet 160 of the distribution nozzle 128 is oriented between about 30 degrees and about 60 degrees further away from the surface being cleaned when the extractor 120 is in the wash mode than when the extractor 120 is in the sanitize mode.
- an actuator may be supported on the foot 152 to facilitate moving the distribution nozzle 128 between the first position and the second position.
- the actuator may include, for example, a dial or button that is manually actuatable to move the nozzle 128 . Actuating the actuator may move the nozzle 128 between two discrete positions (i.e., the first position and the second position), between a series of three or more discrete positions, or between an infinite number of positions between the first and second positions.
- the distribution nozzle 128 may be electronically moved by actuation of a button on the extractor body 124 .
- the extractor 120 may vary the pressure of cleaning solution being delivered by the distribution nozzle 128 onto the surface being cleaned to sanitize the surface.
- the distribution nozzle 128 delivers the cleaning solution at a first, relatively low pressure.
- the distribution nozzle 128 delivers the cleaning solution at a second, relatively high pressure.
- the cleaning solution may be delivered at a pressure of about 15 pounds per square inch (psi) when in the sanitize mode.
- the pressure of the cleaning solution being delivered by the distribution nozzle 128 is varied by the distributor 132 ( FIG. 1 ).
- the distributor 132 includes a pump 170 that draws the cleaning solution from the supply tank assembly 136 and propels the solution into the distribution nozzle 128 .
- the pressure of the cleaning solution may likewise be varied.
- the pressure of the cleaning solution may be varied by adjusting the shape and/or size of the outlet 160 of the distribution nozzle 128 .
- the outlet 160 may be opened a relatively larger amount to deliver cleaning solution at the first pressure and may be opened a relatively smaller amount to deliver cleaning solution at the second pressure.
- the outlet 160 of the distribution nozzle 128 may be adjusted by, for example, manually rotating the nozzle 128 .
- the outlet 160 may be adjusted by mechanically or electrically actuating the nozzle 128 .
- FIGS. 7 and 8 illustrate a suction, or recovery, nozzle 172 that is usable to reduce the recovery rate of the extractor 120 to sanitize the surface being cleaned.
- the illustrated suction nozzle 172 may be used with the extractor 120 instead of the suction nozzle 140 shown in FIG. 4 .
- the suction nozzle 172 includes a recovery rate adjustment mechanism 176 .
- the adjustment mechanism 176 is manually actuatable by a user to change the recovery rate, or suction efficiency, of the nozzle 172 and, thereby, the extractor 120 .
- the adjustment mechanism 176 is configured such that the suction nozzle 172 has a relatively higher recovery rate. In this mode, the suction nozzle 172 leaves a first amount of cleaning solution on the surface being cleaned.
- the adjustment mechanism 176 is configured such that the suction nozzle 172 has a relatively lower recovery rate. In this mode, the suction nozzle 172 leaves a second, greater amount of cleaning solution on the surface being cleaned. By leaving more cleaning solution on the surface, the extractor 120 is capable of sanitizing the surface.
- the recovery rate adjustment mechanism 176 includes a bleed hole 180 ( FIG. 8 ) and an actuator 184 .
- the illustrated actuator 184 is a valve or cover member.
- the cover member 184 is movable (e.g., slidable and/or pivotable) relative to the bleed hole 180 to selectively open and close the bleed hole 180 .
- the bleed hole 180 is substantially covered by the cover member 184 .
- the bleed hole 180 is open (i.e., not covered by the cover member 184 ), creating a leak in the nozzle 172 to reduce the suction efficiency of the nozzle 172 .
- the cover member 184 is movable by manually pivoting the member 184 .
- the cover member 184 may be electrically pivoted.
- the adjustment mechanism 176 may include multiple bleed holes. In such embodiments, all or some of the bleed holes may be selectively covered and uncovered to achieve the desired suction efficiency of the nozzle 172 .
- the extractor 120 adjusts the amount of cleaning solution being delivered onto the surface being cleaned.
- the extractor 120 delivers a greater volume of cleaning solution to the surface being cleaned when in the sanitize mode than when in the wash mode.
- the extractor 120 delivers a greater concentration of cleaning solution to the surface being cleaned when in the sanitize mode than when in the wash mode.
- the illustrated extractor 120 includes an actuator 188 supported on the handle 156 .
- the actuator 188 is a mode selector having a dial 192 .
- the dial 192 is rotatable to switch between the wash mode and the sanitize mode (and a rinse mode, if applicable).
- the dial 192 is also coupled to the distributor 132 to control operation of the distributor 132 .
- the actuator 188 opens one or more valves in the distributor 132 a greater amount (compared to when in the wash mode) such that more sanitizer and water are drawn out of the supply tank assembly 136 .
- the total volume of cleaning solution being delivered to the surface by the extractor 120 is thereby increased.
- the actuator 188 opens a valve that is in communication with the first tank of the supply tank assembly 136 a greater amount (compared to when in the wash mode) such that more sanitizer is drawn out of the supply tank assembly 136 .
- the actuator 188 may also partially close a valve that is in communication with the second tank of the supply tank assembly 136 to decrease the amount of water being drawn out of the assembly 136 .
- the total volume of cleaning solution being delivered onto the surface by the extractor 120 is held relatively constant between the wash and sanitize modes, but the ratio of sanitizer to water is thereby increased.
- the extractor 120 may deliver cleaning solution at a concentration of about 2.5% when in the wash mode and may deliver cleaning solution at a concentration of about 9% when in the sanitize mode.
- the concentration of cleaning solution being delivered onto the surface when in the sanitize mode is between about three and four times higher than when in the wash mode.
- the recovery rate of the extractor 120 may be adjusted by varying a motor speed of the suction source 144 .
- the suction source 144 includes a motor 196 that drives a fan to create a vacuum, and thereby suction, through the suction nozzle 140 .
- the motor 196 In the wash mode, the motor 196 is driven at a first, relatively high speed.
- the motor 196 In the sanitize mode, the motor 196 is driven at a second, relatively low speed. Suction through the suction nozzle 140 is therefore greater when in the wash mode than when in the sanitize mode. As such, more cleaning solution is left on the surface being cleaned when in the sanitize mode than when in the wash mode.
- the actuator 188 on the handle 156 may be electrically coupled to the suction source 144 to vary the motor speed.
- the recovery rate of the extractor 120 may be adjusted by changing the suction nozzle 140 .
- FIG. 9 illustrates the extractor 120 with two removable suction nozzles 140 , 200 .
- the first suction nozzle 140 is connected to the foot 152 of the extractor 120 in fluid communication with the suction source 144 and the recovery tank 148 when the extractor 120 is in the wash mode.
- the second suction nozzle 200 is connected to the foot 152 of the extractor 120 in fluid communication with the suction source 144 and the recovery tank 148 when the extractor 120 is in the sanitize mode.
- the suction nozzles 140 , 200 can be alternately attached to and removed from the foot 152 with or without the use of tools.
- the suction nozzles 140 , 200 may be secured to the foot 152 using a latch mechanism or snap fits. In other embodiments, the suction nozzles 140 , 200 may be secured to the foot 152 using fasteners, such as screws. In some embodiments, both suction nozzles 140 , 200 may be connected to and supported by the foot 152 simultaneously, but the extractor 120 may switch or toggle between the nozzles 140 , 200 depending on whether the extractor 120 is in the wash mode or in the sanitize mode.
- the suction nozzles 140 , 200 are designed to have different recovery rates.
- the recovery rates of the nozzles 140 , 200 may be determined by the cross-sectional areas and shapes of flowpaths extending through the nozzles 140 , 200 .
- the first suction nozzle 140 is designed to have a relatively high recovery rate such that less cleaning solution is left on the surface being cleaned.
- the second suction nozzle 200 is designed to have a relatively low recovery rate such that more cleaning solution is left on the surface being cleaned.
- the first suction nozzle 140 may have a recovery rate that is about 5% to 7% higher than the recovery rate of the second suction nozzle 200 .
- no suction nozzle may be attached to the foot 152 when the extractor 120 is in the sanitize mode such that all of the cleaning fluid is unrecovered (i.e., left on the surface) during operation in the sanitize mode.
- FIGS. 10 and 11 illustrate a portion of another extractor 220 .
- the extractor 220 generally includes the same components as the extractors 20 , 120 described above.
- the illustrated extractor 220 includes a port 224 configured to alternately receive bottles 228 of cleaning solution.
- the port 224 may alternately receive a first bottle of detergent and a second bottle of sanitizer. Inserting the bottles 228 into the port fluidly connects the bottles 228 to a distributor and a distribution nozzle of the extractor 220 .
- the extractor 220 When the port 224 receives the first bottle, the extractor 220 is in a wash mode.
- the extractor 220 When the port 224 receives the second bottle, the extractor 220 is in a sanitize mode.
- the bottles 228 may be off-the-shelf bottles that are shaped and sized to fit directly into the port 224 .
- the extractor 220 mixes the detergent or sanitizer from the bottles 228 with water from a supply tank assembly to create a cleaning solution.
- the port 224 is formed in a body 232 of the extractor 220 and includes a pivotable latch 236 .
- the latch 236 moves relative to the body 232 between an unlocked position ( FIG. 10 ) and a locked position ( FIG. 11 ) to releasably secure the bottles 228 within the port 224 .
- the port 224 can receive and allows removal of one of the bottles 228 .
- the latch 236 inhibits the attached bottle 228 from being removed from the port 224 .
- the extractor 220 also includes an actuator 240 supported on the body 232 adjacent the port 224 .
- the illustrated actuator 240 includes a rotatable knob.
- the actuator 240 is coupled to a valve 244 to selectively fluidly connect the bottles 228 to the distributor.
- the valve 244 When the actuator is in a first position ( FIG. 10 ), the valve 244 is closed such that cleaning solution is not drawn out of the attached bottle 228 by the distributor during operation of the extractor 220 .
- the valve 244 is opened such that the distributor draws cleaning fluid out of the attached bottle 228 during operation of the extractor 220 .
- FIGS. 12 and 13 illustrate a portion of another extractor 320 .
- the extractor 320 generally includes the same components as the extractors 20 , 120 described above.
- the illustrated extractor 320 includes a base 324 that supports a distribution nozzle 328 , a suction nozzle 332 , and a brush assembly 336 .
- the distribution nozzle 328 extends from a lower surface 340 of the base 324 and defines an outlet 344 .
- the outlet 344 directs cleaning fluid onto a surface 348 to be cleaned.
- the outlet 344 of the distribution nozzle 328 is spaced a first vertical distance D 1 from the surface 348 when the extractor 320 is in a wash mode.
- the outlet 344 of the distribution nozzle 328 is spaced a second vertical distance D 2 from the surface 348 when the extractor 320 is in a sanitize mode.
- the second vertical distance D 2 is less than the first vertical distance D 1 so that the outlet 344 is closer to the surface 348 when the extractor 320 is in the sanitize mode than when the extractor 320 is in the wash mode.
- the distribution nozzle 328 extends a further distance from the lower surface 340 of the base 324 when the extractor 320 is in the sanitize mode than when the extractor 320 is in the wash mode. Such an arrangement helps the cleaning solution being delivered by the distribution nozzle 328 to penetrate the surface 348 a greater amount when in the sanitize mode than when in the wash mode.
- the distribution nozzle 328 itself penetrates into the surface 348 when the extractor 320 is in the sanitize mode.
- the surface 348 may be, for example, carpet that allows the distribution nozzle 328 to extend into the surface 348 between carpet fibers. In this position, the vertical distance D 2 between the outlet 344 of the distribution nozzle 328 and the surface 348 is less than zero. By penetrating the surface 348 , the distribution nozzle 328 ensures that cleaning fluid is delivered deep into the surface 348 to sanitize the surface.
- the distribution nozzle 328 may be positioned closer to the surface 348 when the extractor 320 is in the sanitize mode than when the extractor 320 is in the wash mode, yet still be spaced above the surface 348 .
- the second vertical distance D 2 between the distribution nozzle 328 and the surface 348 may be zero when the extractor 320 is in the sanitize mode.
- the distribution nozzle 328 may be manually or automatically moved between the first position ( FIG. 12 ) and the second position ( FIG. 13 ) when the extractor 320 switches between the wash and sanitize modes.
- an actuator such as a lever or dial, may be mechanically linked to the distribution nozzle 328 to move the nozzle 328 vertically relative to the lower surface 340 of the base 324 .
- the distribution nozzle 328 may be electrically driven by a motor (or other suitable component of the extractor 320 ) to move between the first and second positions.
- FIGS. 14 and 15 illustrate a portion of another extractor 420 .
- the extractor 420 generally includes the same components as the extractors 20 , 120 described above.
- the illustrated extractor 420 includes a base 424 that supports a distribution nozzle 428 , a suction nozzle 432 , and a brush assembly 436 .
- the extractor 420 also includes a deflector 440 coupled to the base 424 adjacent the distribution nozzle 428 .
- the deflector 440 is movable relative to the base 424 and the distribution nozzle 428 between a first position ( FIG. 14 ) and a second position ( FIG. 15 ).
- the deflector 440 is pivotally coupled to the base 424 such that the deflector 440 pivots between the first and second positions. In other embodiments, the deflector 440 may slide linearly relative to the base 424 between the first and second positions.
- the deflector 440 includes a plate that is configured to selectively interfere with and deflect cleaning solution being delivered by the distribution nozzle 428 .
- the deflector 440 is positioned between the distribution nozzle 428 and a surface 444 to be cleaned such that cleaning solution exiting the nozzle 428 contacts the deflector 440 before reaching the surface 444 .
- the deflector 440 thereby interferes with delivery of the cleaning solution to reduce penetration of the solution into the surface 444 .
- the extractor 420 is in a sanitize mode (as shown in FIG.
- the deflector 440 is moved away from between the distribution nozzle 428 and the surface 444 such that cleaning solution exiting the nozzle 428 does not contact the deflector 440 . In this position, the deflector 440 does not interfere with delivery of the cleaning solution, allowing the cleaning solution to penetrate deeper into the surface 444 .
- the deflector 440 may be manually or automatically moved between the first, position ( FIG. 14 ) and the second position ( FIG. 15 ) when the extractor 420 switches between the wash and sanitize modes.
- an actuator such as a lever or dial, may be mechanically linked to the deflector 440 to pivot the deflector 440 relative to the base 424 .
- the deflector 440 may be electrically pivoted by a motor (or other suitable component of the extractor 420 ) to pivot between the first and second positions.
- FIGS. 16 and 17 illustrate a portion of another extractor 520 .
- the extractor 520 generally includes the same components as the extractors 20 , 120 described above.
- the illustrated extractor 520 includes a base 524 that supports a suction nozzle 532 and a brush assembly 536 .
- the suction nozzle 532 is located on a front of the base 524 , opposite from rear wheels 540 , to draw fluid and dirt from a surface 544 into a recovery tank (not shown).
- the suction nozzle 532 defines an opening 548 adjacent the surface 544 and a flowpath 552 extending from the opening 548 to the recovery tank.
- the suction nozzle 532 also includes a port 556 formed in a front face 560 of the suction nozzle 532 .
- the port 556 is configured to selectively receive a blocking member 564 ( FIG. 17 ) to change a recovery rate of the suction nozzle 532 .
- a cover 568 is pivotally coupled to the suction nozzle 532 to cover the port 556 when the blocking member 564 is not positioned in the port 556 .
- the blocking member 564 ( FIG. 17 ) is not coupled to the suction nozzle 532 and the cover 568 is closed. In this condition, the opening 548 and the flowpath 552 of the suction nozzle 532 are substantially unblocked or unobstructed. As shown in FIG. 17 , when the extractor 520 is in a sanitize mode, the cover 568 is pivoted open and the blocking member 564 is inserted into the port 556 . In this condition, the blocking member 564 extends into the flowpath 556 to block at least a portion of the flowpath 556 .
- the blocking member 564 reduces the recovery rate of the suction nozzle 532 . As such, during operation, more cleaning solution will be left on the surface 544 and not recovered by the extractor 520 , thereby helping to sanitize the surface 544 .
- the blocking member 564 may extend into the suction nozzle 532 to completely block the flowpath 552 . In such embodiments, the blocking member 564 essentially inhibits any recovery of cleaning solution from the surface 544 by preventing fluid and dirt from flowing through the suction nozzle 532 . In other embodiments, the blocking member 564 may be inserted into the opening 548 of the suction nozzle 532 when the extractor 520 is in the sanitize mode to partially or completely block the opening 548 . In still other embodiments, multiple blocking members 564 may be coupled to the suction nozzle 532 to block the flowpath 552 and/or the opening 548 and reduce the recovery rate of the nozzle 532 a desired amount when the extractor 520 is in the sanitize mode.
- FIGS. 18 and 19 illustrate a brush assembly 636 for use with an extractor (not shown).
- the extractor may be configured similar to the extractors 320 , 420 , 520 discussed above and may include generally the same components as the extractors 20 , 120 described above.
- the brush assembly 636 may be one of the brush assemblies 336 , 436 , 536 shown in FIGS. 12-17 .
- the brush assembly 636 is configured to be supported on a base of the extractor adjacent a distribution nozzle.
- the brush assembly 636 extends from a lower surface 640 of the base to engage a surface 644 to be cleaned.
- the brush assembly 636 is operable to agitate or scrub the surface 644 to help cleaning solution penetrate the surface 644 .
- the brush assembly 636 includes a series of spin scrub brushes 648 that are electrically or pneumatically actuated (e.g., rotated) to scrub the surface 644 .
- the brush assembly 636 may include a single brush that is rotated to agitate the surface 644 .
- the illustrated brush assembly 636 includes the brushes 648 , a support member 652 , and a cam surface 656 .
- the brushes 648 are rotatably mounted to a first side of the support member 652 .
- the cam surface 656 is formed on a second side of the support member 652 opposite from the brushes 648 .
- the extractor also includes a cam member 660 that selectively engages the cam surface 656 to move the brush assembly 636 relative to the base.
- the illustrated cam member 660 is a wedge, although other suitable cam members may also or alternatively be employed.
- the cam member 660 is slidable along the lower surface 640 of the base between a first position ( FIG. 18 ), in which the cam member 660 is spaced apart from and disengages the brush assembly 636 , and a second position ( FIG. 19 ), in which the cam member 660 engages the brush assembly 636 . As shown in FIG. 19 , the cam member 660 slides in a generally horizontal direction A (e.g., in a direction parallel to the lower surface 640 ) to engage the cam surface 656 of the brush assembly 636 .
- the cam member 660 pushes the brush assembly 636 in a generally vertical direction B (e.g., in a direction perpendicular to the lower surface 640 ) toward the surface 644 to be cleaned.
- the extractor When the brush assembly 636 and the cam member 660 are in the first position ( FIG. 18 ), the extractor is in a wash mode. In this position, the brush assembly 636 floats freely on the base and engages the surface 644 with a first force.
- the extractor When the brush assembly 636 and the cam member 660 are in the second position ( FIG. 19 ), the extractor is in a sanitize mode. In this position, the brush assembly 636 is wedged downward by the cam member 660 such that the brush assembly 636 engages the surface 644 with a second force that is greater than the first force. By engaging the surface 644 with a greater force, the brush assembly 636 is able to scrub the surface 644 harder, thereby helping the cleaning solution penetrate deeper into the surface 644 .
- the cam member 660 may be manually or automatically moved between the first position and the second position when the extractor switches between the wash and sanitize modes.
- an actuator such as a lever or dial, may be mechanically linked to the cam member 660 to slide the cam member 660 along the lower surface 640 of the base.
- the cam member 660 may be electrically moved by a motor (or other suitable component of the extractor) to slide between the first and second positions.
- the brush assembly 636 may be pressed into the surface 644 with greater force when the extractor is in the sanitize mode than when the extractor is in the wash mode by pivoting closer to the surface 644 .
- a motor of the extractor may drive the brush assembly 636 harder (e.g., faster) when the extractor is in the sanitize mode than when the extractor is in the wash mode.
- FIG. 20 illustrates a portion of another extractor 720 .
- the extractor 720 generally includes the same components as the extractors 20 , 120 described above.
- the illustrated extractor 720 includes a base 724 and a suction nozzle 728 supported by the base 724 .
- the suction nozzle 728 is located on a front of the base 724 , opposite from rear wheels 732 .
- the suction nozzle 728 defines an opening 736 and a flowpath 740 ( FIG. 25 ).
- the opening 736 communicates with a surface 744 to be cleaned ( FIG. 26 ) to draw fluid and dirt from the surface 744 into the suction nozzle 728 .
- the flowpath 740 extends from the opening 736 to a recovery tank (not shown) to direct fluid and dirt drawn up through the opening 736 into the recovery tank.
- the extractor 720 also includes two lift members 748 coupled to the suction nozzle 728 .
- each lift member 748 includes a base portion 752 and two tabs 756 , 760 extending generally perpendicularly from the base portion 752 .
- the base portion 752 or ski, includes an upwardly-titled forward end 764 and an upwardly-titled rearward end 768 .
- a larger section of the base portion 752 is upwardly-tilted at the forward end 764 than at the rearward end 768 .
- the base portion 752 is configured to engage and ride along the surface 744 ( FIG. 26 ) during operation of the extractor 720 .
- the tabs 756 , 760 are flexible such that each tab 756 , 760 can bend or deflect to facilitate connecting the lift member 748 to the suction nozzle 728 .
- the tabs 756 , 760 are bent in opposing directions.
- the first tab 756 is bent slightly toward the forward end 764 of the base portion 752
- the second tab 760 is bent slightly toward the rearward end 768 of the base portion 752 .
- FIG. 25 illustrates steps for connecting one of the lift members 748 to the suction nozzle 728 .
- the two tabs 756 , 760 are pushed toward each other (in the direction of arrows X) such that the tabs 756 , 760 align and extend perpendicularly from the base portion 752 .
- the tabs 756 , 760 are aligned, as shown in the middle drawing, the tabs 756 , 760 are inserted (in the direction of arrow Y) into the opening 736 of the suction nozzle 728 .
- the tabs 756 , 760 return to their at-rest, bent states (in the direction of arrows Z) and engage inner surfaces 772 , 776 of the suction nozzle 728 .
- the lift member 748 is thereby releasably secured within the suction nozzle 728 such that the lift member 748 will not fall out of the suction nozzle 728 , but can be pulled out of the nozzle 728 to disconnect the lift member 748 from the nozzle 728 .
- the lift members 748 when the lift members 748 are coupled to the suction nozzle 728 , the lift members 748 lift or raise the suction nozzle 728 further away from the surface 744 to be cleaned than if the lift members 748 were not present. Raising the suction nozzle 728 of the extractor 720 away from the surface 744 lowers a recovery rate of the extractor 720 and, more particularly, of the nozzle 728 . In addition, the lift members 748 block a portion of the opening 736 to further reduce the recovery rate of the suction nozzle 728 (similar to the blocking member 564 shown in FIG. 17 ).
- the lift members 748 are connected to and usable with the extractor 720 when the extractor 720 is in a sanitize mode. Conversely, the lift members 748 are removed from the suction nozzle 728 when the extractor 720 is in a wash mode. In other embodiments, fewer or more lift members 748 may be coupled to the suction nozzle 728 and/or the lift members 748 may be relatively taller or shorter to adjust the recovery rate of the suction nozzle 728 a desired amount.
- FIG. 27 illustrates a portion of another extractor 820 .
- the extractor 820 generally includes the same components as the extractors 20 , 120 described above.
- the illustrated extractor 820 includes a base 824 that supports a distribution nozzle 828 , a suction nozzle 832 , and a brush assembly 836 .
- the extractor 820 also includes a grooming member 840 coupled to the base 824 adjacent the distribution nozzle 828 .
- the grooming member 840 is located between the distribution nozzle 828 and the suction nozzle 832 , but may alternatively be located between the distribution nozzle 828 and the brush assembly 836 .
- the grooming member 840 extends from a lower surface 844 of the base 824 and is configured to engage a surface 848 to be cleaned.
- the grooming member 840 may extend across an entire width of the base 824 , or may extend across a portion of the width equal to the spray area of the distribution nozzle 828 . As shown in FIG. 28 , the grooming member 840 includes a plurality of teeth 852 defining a plurality of gaps 856 therebetween. The teeth 852 mechanically groom or plow the surface 848 (e.g., carpet) to facilitate penetration of cleaning fluid deeper into the surface 848 .
- the grooming member 840 may be retractable such that the grooming member 840 is spaced apart from the surface 848 when the extractor 820 is in a wash mode, but engages the surface 848 when the extractor 820 is in a sanitize mode.
- the grooming member 840 may pivot or rotate to lay flat against the lower surface 844 of the base 824 when the extractor 820 is in the wash mode.
- the grooming member 840 may slide linearly into the base 824 when the extractor 820 is in the wash mode.
- cleaning fluid delivered by the distribution nozzle 828 will penetrate further into the surface 848 when the grooming member 840 is extended (i.e., when the extractor 820 is in the sanitize mode) than when the grooming member 840 is retracted (i.e., when the extractor 820 is in the wash mode).
- the grooming member 840 may be manually or automatically moved between retracted and extended positions when the extractor 820 switches between the wash and sanitize modes.
- an actuator such as a lever or dial, may be mechanically linked to the grooming member 840 to pivot or slide the grooming member 840 relative to the base 824 .
- the grooming member 840 may be electrically moved by a motor (or other suitable component of the extractor 820 ) between the retracted and extended positions.
- a surface to be cleaned may also be sanitized by pre-treating the surface with a sanitizer and then using one of the extractors described above.
- the extractor may include a pressurized liquid spray module to dispense sanitizer onto the surface.
- the spray module may be battery operated, may include a hand pump, or may be an aerosol container.
- the extractor may include a dry dispenser module for dispensing solid or powder sanitizer onto the surface. In such embodiments, the dry sanitizer may later be wetted by the extractor.
- the extractor may include a vaporizer module to spray sanitizer fluid onto the surface. In each of these embodiments, these modules may be stored on or part of the extractor such that the modules and the extractor are an integrated unit.
- two or more of the features described above may be used in combination to implement a sanitize mode on an extractor.
- the angle of the distribution nozzle, the delivery pressure of the cleaning solution, and the recovery rate of the suction nozzle may all be varied when the extractor is in a sanitize mode.
- the extractor may include a supply tank assembly having discrete tanks for detergent and sanitizer and two or more interchangeable suction nozzles to switch between a wash mode and a sanitize mode.
- Other combinations of features are also within the scope of this invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Catching Or Destruction (AREA)
Abstract
A floor cleaning machine for cleaning a surface. The cleaning machine includes a body, an actuator supported by the body, a distribution nozzle supported by the body, and a supply tank assembly coupled to the body in fluid communication with the distribution nozzle. The supply tank includes a first tank that stores a first cleaning solution, a second tank that stores a second cleaning solution that is different from the first cleaning solution, and a third tank that stores water. The floor cleaning machine is operable in a first mode to wash the surface, in a second mode to sanitize the surface, and a third mode to rinse the surface. The distribution nozzle delivers the first cleaning solution onto the surface when the floor cleaning machine is in the first mode and delivers the second cleaning solution onto the surface when the floor cleaning machine is in the second mode.
Description
- This application is a continuation of U.S. patent application Ser. No. 13/827,273, filed Mar. 14, 2013. The disclosure of which is incorporated by reference herein.
- The present invention relates to floor cleaning machines and, more particularly, to floor cleaning machines having multiple modes of operation.
- A floor cleaning machine, such as an extractor, typically sprays or otherwise distributes cleaning fluid onto a surface to wash the surface. The machine then draws the cleaning fluid and dirt from the surface into a recovery tank. Some floor cleaning machines can also deliver water to the surface to rinse the surface before and/or after the cleaning fluid is applied.
- In one embodiment, the invention provides a floor cleaning machine for cleaning a surface. The floor cleaning machine includes a body, a distribution nozzle supported by the body, a supply tank assembly coupled to the body in fluid communication with the distribution nozzle, a suction nozzle supported by the body, and a suction source in fluid communication with the suction nozzle. The suction source is operable to draw fluid and dirt from the surface through the suction nozzle. The floor cleaning machine also includes a recovery tank coupled to the body in fluid communication with the suction source to receive and store fluid and dirt drawn through the suction nozzle. The floor cleaning machine is operable in a first mode to wash the surface and is operable in a second mode to sanitize the surface.
- Other aspects of the invention will become apparent by consideration of the detailed description and accompanying drawings.
-
FIG. 1 is a perspective view of a floor cleaning machine. -
FIG. 2 is a perspective view of a supply tank assembly for use with the floor cleaning machine shown inFIG. 1 . -
FIG. 3 is a top view of the supply tank assembly ofFIG. 2 . -
FIG. 4 is a perspective view of another floor cleaning machine. -
FIG. 5 is a side view of a portion of the floor cleaning machine shown inFIG. 4 , the floor cleaning machine including a distribution nozzle in a first position. -
FIG. 6 is a side view of the portion of the floor cleaning machine ofFIG. 5 with the distribution nozzle in a second position. -
FIG. 7 is a top view of a suction nozzle for use with the floor cleaning machine shown inFIG. 4 , the suction nozzle including a cover member in a first position to cover a bleed hole. -
FIG. 8 is a top view of the suction nozzle ofFIG. 7 with the cover member in a second position to open the bleed hole. -
FIG. 9 is a perspective view of the floor cleaning machine ofFIG. 4 configured to alternately receive a first suction nozzle and a second suction nozzle. -
FIG. 10 is a side perspective view of a portion of another floor cleaning machine, the floor cleaning machine including a port for receiving a bottle of cleaning solution. -
FIG. 11 is a side view of the portion of the floor cleaning machine shown inFIG. 10 . -
FIG. 12 is a schematic of a portion of a floor cleaning machine, the floor cleaning machine including a distribution nozzle in a first position. -
FIG. 13 is a schematic of the portion of the floor cleaning machine ofFIG. 12 with the distribution nozzle in a second position. -
FIG. 14 is a schematic of a portion of another floor cleaning machine, the floor cleaning machine including a deflector in a first position. -
FIG. 15 is a schematic of the portion of the floor cleaning machine ofFIG. 14 with the deflector in a second position. -
FIG. 16 is a schematic of a portion of another floor cleaning machine, the floor cleaning machine including a suction nozzle with a port. -
FIG. 17 is a schematic of the portion of the floor cleaning machine ofFIG. 16 with a blocking member positioned in the port of the suction nozzle. -
FIG. 18 illustrates a brush assembly and a cam member for use with a floor cleaning machine, the brush assembly and the cam member being in a first position. -
FIG. 19 illustrates the brush assembly and the cam member in a second position. -
FIG. 20 is a perspective view of a portion of another floor cleaning machine. -
FIGS. 21-24 illustrate various views of a lift member for use with the floor cleaning machine ofFIG. 20 . -
FIG. 25 illustrates a method of connecting the lift member ofFIGS. 21-24 to the floor cleaning machine ofFIG. 20 . -
FIG. 26 is a side view of the portion of the floor cleaning machine ofFIG. 20 with the lift member connected. -
FIG. 27 is a schematic of a portion of another floor cleaning machine, the floor cleaning machine including a grooming member. -
FIG. 28 is a plan view of the grooming member ofFIG. 27 . - Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways.
-
FIG. 1 illustrates afloor cleaning machine 20, such as an extractor. In the illustrated embodiment, theextractor 20 is an upright extractor operable to a clean a surface, such as, for example, a floor. In some embodiments, theextractor 20 may be adapted to clean a variety of surfaces, such as carpets, hardwood floors, tiles, or the like. Theextractor 20 distributes or sprays cleaning fluid onto the surface to clean the surface. Theextractor 20 then draws the cleaning fluid and any dirt off of the surface, leaving the surface relatively clean and dry. As used herein, “cleaning fluid” refers to a detergent, a sanitizer, or a mixture of water and detergent/sanitizer. - The
extractor 20 is capable of operating in multiple modes of operation. For example, theextractor 20 can operate in a first mode to wash a surface and in a second mode to sanitize the surface. In the first or wash mode, theextractor 20 delivers a cleaning solution composed of detergent (or a mixture of detergent and water) onto the surface. In this mode, theextractor 20 can lift dirt, mud, stains, and other debris from the surface. In the second or sanitize mode, theextractor 20 delivers a second cleaning solution composed of sanitizer (or a mixture of sanitizer and water) onto the surface. The sanitizer may be, for example, VITAL OXIDE chlorine dioxide sanitizer manufactured by Vital Solutions, LLC. In other embodiments, the sanitizer may be a powder or solid that is dissolved in a water tank or a cleaning solution tank of theextractor 20. In the sanitize mode, theextractor 20 can kill bacteria and other types of microorganisms on the surface. When using theextractor 20 in the sanitize mode, theextractor 20 kills at least 90% of microorganisms on the surface. In some embodiments, theextractor 20 kills at least 99% of microorganisms on the surface when operating in the sanitize mode. In further embodiments, theextractor 20 kills at least 99.99% of microorganisms on the surface when operating in the sanitize mode. - In some embodiments, the cleaning solutions used in the wash mode and in the sanitize mode may be the same. In order to achieve different results when using the same cleaning solution, more cleaning solution may be delivered to the surface, a higher concentration of cleaning solution may be delivered to the surface, and/or more cleaning solution may be left on (i.e., not recovered from) the surface during sanitizing, as further discussed below.
- In some embodiments, the
extractor 20 can further operate in a third mode to rinse the surface. In the third or rinse mode, theextractor 20 delivers water onto the surface without detergent or sanitizer. In this mode, theextractor 20 dilutes and washes away residual detergent or sanitizer from the surface. - As shown in
FIG. 1 , theextractor 20 includes abody 24, adistribution nozzle 28 coupled to thebody 24, adistributor 32 coupled to thebody 24 in fluid communication with thedistribution nozzle 28, asupply tank assembly 36 coupled to thebody 24 in fluid communication with thedistribution nozzle 28 and thedistributor 32, asuction nozzle 40 coupled to thebody 24, a suction source 44 coupled to thebody 24 in fluid communication with thesuction nozzle 40, and arecovery tank 48 coupled to thebody 24 in fluid communication with the suction source 44. - In the illustrated embodiment, the
body 24 includes a base orfoot 52 and ahandle 56 pivotally coupled to thefoot 52. Thefoot 52 is movable along a surface to be cleaned and supports the other components of theextractor 20. Two wheels 60 (only one of which is shown) are coupled to thefoot 52 to facilitate movement of thefoot 52 along the surface. In the illustrated embodiment, thewheels 60 are idle wheels. In other embodiments, thewheels 60 may be driven wheels. Thehandle 56 extends from thefoot 52 and is pivotable between a generally vertical, or upright, storage position (shown inFIG. 1 ) and an infinite number of non-vertical, or inclined, operating positions. Pivoting thehandle 56 to one of the operating positions facilitates moving (e.g., pushing and pulling) thefoot 52 along the surface. - The
distribution nozzle 28 and thesuction nozzle 40 are supported by thefoot 52 adjacent a lower surface of thefoot 52. Thedistribution nozzle 28 directs cleaning solution from thesupply tank assembly 36 onto the surface to be cleaned. Thesuction nozzle 40 draws fluid and dirt from the surface back into therecovery tank 48 of theextractor 20. In some embodiments, one or more electrically- or pneumatically-actuated brushes may also be supported on the lower surface of thefoot 52 adjacent thenozzles - The
distributor 32 draws cleaning solution from thesupply tank assembly 36 and delivers the cleaning solution onto the surface to be cleaned through thedistribution nozzle 28. In some embodiments, thedistributor 32 includes a receptacle, a pump, a valve, and conduits connecting thesupply tank assembly 36 to thedistribution nozzle 28. In other embodiments, the pump may be omitted from thedistributor 32 such that cleaning fluid is gravity-fed from thesupply tank assembly 36. In the illustrated embodiment, at least a portion of thedistributor 32 is supported by and positioned within thefoot 52, but may alternatively be positioned elsewhere on theextractor body 24. - The
supply tank assembly 36 is removably supported by thehandle 56 on top of therecovery tank 48. Ahandle 64 extends from a front surface of thesupply tank assembly 36 to facilitate handling theassembly 36 apart from theextractor body 24. As shown inFIGS. 2 and 3 , the illustratedsupply tank assembly 36 includes threetanks tanks tanks tanks assembly 36. For example, thefirst tank 68 can store a detergent, thesecond tank 72 can store a sanitizer, and thethird tank 76 can store water. In other embodiments, thewater tank 76 can be separate from thesupply tank assembly 36 such that theassembly 36 only includes two integrally-formed tanks. Each of the illustratedtanks outlet distributor 32 to draw the corresponding fluid out of thetank outlets tanks supply tank assembly 36 is removed from thebody 24. - Referring back to
FIG. 1 , the suction source 44 draws fluid and dirt from the surface being cleaned through thesuction nozzle 40 and into therecovery tank 48. In some embodiments, the suction source 44 includes a fan that generates a vacuum to draw the fluid and dirt through thesuction nozzle 40. In the illustrated embodiment, the suction source 44 is supported by and positioned within thefoot 52, but may alternatively be positioned elsewhere on theextractor body 24. - The
recovery tank 48 is removably supported by thehandle 56 below thesupply tank assembly 36. Therecovery tank 48 receives and temporarily stores fluid and dirt drawn up from the surface being cleaned through thesuction nozzle 40. When full, therecovery tank 48 may be removed from thebody 24 and emptied. Ahandle 92 extends from a front surface of therecovery tank 48 to facilitate handling thetank 48. In other embodiments, therecovery tank 48 may alternatively be supported elsewhere on theextractor body 24. - The illustrated
extractor 20 is operable in three modes: a wash mode, a sanitize mode, and a rinse mode. When in the wash mode, thedistributor 32 draws a first cleaning solution from the supply tank assembly 36 (e.g., a detergent from thefirst tank 68 of the assembly 36). Thedistributor 32 directs the first cleaning solution to thedistribution nozzle 28, which delivers the solution onto the surface being cleaned. When in the sanitize mode, thedistributor 32 draws a second cleaning solution from the supply tank assembly 36 (e.g., a sanitizer from thesecond tank 72 of the assembly 36). Thedistributor 32 directs the second cleaning solution to thedistribution nozzle 28, which delivers the solution onto the surface being cleaned. When in the rinse mode, thedistributor 32 draws water from the supply tank assembly 36 (e.g., from thethird tank 76 of the assembly 36). Thedistributor 32 directs the water to thedistribution nozzle 28, which delivers the solution onto the surface being cleaned. In some embodiments, water may be drawn from thethird tank 76 in all three modes to appropriately dilute the detergent or the sanitizer. - As shown in
FIG. 1 , theextractor 20 includes anactuator 96 coupled to thebody 24. Theactuator 96 is a mode selector that allows a user to manually switch between the wash, sanitize, and rinse modes. The illustratedactuator 96 is supported on thefoot 52 of theextractor 20 but may alternatively be supported on thehandle 56 or on thesupply tank assembly 36. In the illustrated embodiment, theactuator 96 includes a rotatable dial. In other embodiments, other suitable actuators may also or alternatively be employed. - The
actuator 96 is coupled to thedistributor 32 to alter operation of thedistributor 32. For example, theactuator 96 may be coupled to a three-way valve 100 of thedistributor 32 that is in communication with the threeoutlets tanks FIGS. 2 and 3 ). Actuating theactuator 96 between the modes actuates thevalve 100 to selectively open theoutlets outlet 80 of thefirst tank 68 may be opened, while theoutlets 84, 88 of the second andthird tanks outlet 84 of thesecond tank 72 may be opened, while theoutlets 80, 88 of the first andthird tanks third tank 76 may be opened, while theoutlets third tank 76 remains open for all the modes and theoutlets second tanks extractor 20 may include separate fluid paths for each of thetanks -
FIG. 4 illustrates anotherextractor 120. The illustrated theextractor 120 includes abody 124, a distribution nozzle 128 (FIGS. 5 and 6 ) coupled to thebody 124, adistributor 132 coupled to thebody 124 in fluid communication with thedistribution nozzle 128, asupply tank assembly 136 coupled to thebody 124 in fluid communication with thedistribution nozzle 128 and thedistributor 132, asuction nozzle 140 coupled to thebody 124, asuction source 144 coupled to thebody 124 in fluid communication with thesuction nozzle 140, and arecovery tank 148 coupled to thebody 124 in fluid communication with thesuction source 144. Thebody 124 includes afoot 152 and ahandle 156 pivotally coupled to thefoot 152. Except as further described below, the components of theextractor 120 generally operate in a similar manner as the components of theextractor 20 discussed above. - In the illustrated embodiment, the
supply tank assembly 136 only includes two tanks. The first tank stores a cleaning solution, and the second tank stores water. In such an embodiment, the first tank is filled with a detergent when using theextractor 120 in a wash mode and is filled with a sanitizer when using theextractor 120 in a sanitize mode. In the illustrated embodiment, thesupply tank assembly 136 and thedistributor 132 are configured to mix detergent or sanitizer from the first tank with water from the second tank on demand. That is, the detergent or sanitizer is mixed with water to create a cleaning solution when the fluids are drawn out of the first tank by thedistributor 132 during operation of theextractor 120, rather than being pre-mixed with water inside thesupply tank assembly 136. - In operation, the
extractor 120 leaves behind more cleaning solution on the surface when in the sanitize mode than when in the wash mode. Leaving more cleaning solution on the surface when in the sanitize mode allows the solution to kill more microorganisms on the surface, thereby sanitizing the surface. Theextractor 120 can achieve this result by, for example, adjusting how the cleaning solution is delivered to the surface, reducing the recovery rate or suction efficiency of theextractor 120, and/or increasing the concentration or volume of cleaning solution being delivered onto the surface. - In one embodiment, the
extractor 120 switches between the wash mode and the sanitize mode by changing the angle at which cleaning solution is delivered to the surface. As shown inFIGS. 5 and 6 , thedistribution nozzle 128 is coupled to and supported by thefoot 152 of theextractor 120. In the illustrated embodiment, thedistribution nozzle 128 includes a single nozzle having asingle outlet 160. In other embodiments, thedistribution nozzle 128 may include multiple nozzles or may include a bar having multiple outlets to deliver cleaning solution onto the surface. - The illustrated
distribution nozzle 128 is movable relative to thefoot 152 between a first position (FIG. 5 ) for the wash mode and a second position (FIG. 6 ) for the sanitize mode. When in the first position, theoutlet 160 of thedistribution nozzle 128 is oriented at an acute angle A relative to aplane 164 defined by alower surface 168 of the foot 152 (i.e., thesurface 168 of thefoot 152 that is generally parallel to and facing the surface being cleaned). In this position, thedistribution nozzle 128 delivers cleaning solution onto the surface at the acute angle A. When in the second position, theoutlet 160 of thedistribution nozzle 128 is oriented generally perpendicular to theplane 164 defined by thelower surface 168 of thefoot 152. In this position, the cleaning solution penetrates deeper into the surface (e.g., carpeting) such that thesuction nozzle 140 recovers less cleaning solution from the surface than when in the first position. In other embodiments, thesuction nozzle 140 may be oriented at a smaller acute, but non-perpendicular angle when in the second position. In the illustrated embodiment, the acute angle A is between about 30 degrees and about 60 degrees. As such, theoutlet 160 of thedistribution nozzle 128 is oriented between about 30 degrees and about 60 degrees further away from the surface being cleaned when theextractor 120 is in the wash mode than when theextractor 120 is in the sanitize mode. - In some embodiments, an actuator may be supported on the
foot 152 to facilitate moving thedistribution nozzle 128 between the first position and the second position. In such embodiments, the actuator may include, for example, a dial or button that is manually actuatable to move thenozzle 128. Actuating the actuator may move thenozzle 128 between two discrete positions (i.e., the first position and the second position), between a series of three or more discrete positions, or between an infinite number of positions between the first and second positions. In some embodiments, thedistribution nozzle 128 may be electronically moved by actuation of a button on theextractor body 124. - In another embodiment, the
extractor 120 may vary the pressure of cleaning solution being delivered by thedistribution nozzle 128 onto the surface being cleaned to sanitize the surface. When in the wash mode, thedistribution nozzle 128 delivers the cleaning solution at a first, relatively low pressure. When in the sanitize mode, thedistribution nozzle 128 delivers the cleaning solution at a second, relatively high pressure. By delivering the cleaning solution at a higher pressure while in the sanitize mode, the solution will embed deeper into the surface being cleaned such that less solution is recovered by thesuction nozzle 140. In some embodiments, the cleaning solution may be delivered at a pressure of about 15 pounds per square inch (psi) when in the sanitize mode. - In the illustrated embodiment, the pressure of the cleaning solution being delivered by the
distribution nozzle 128 is varied by the distributor 132 (FIG. 1 ). Thedistributor 132 includes apump 170 that draws the cleaning solution from thesupply tank assembly 136 and propels the solution into thedistribution nozzle 128. By varying an operating speed of thepump 170, the pressure of the cleaning solution may likewise be varied. - In other embodiments, the pressure of the cleaning solution may be varied by adjusting the shape and/or size of the
outlet 160 of thedistribution nozzle 128. For example, theoutlet 160 may be opened a relatively larger amount to deliver cleaning solution at the first pressure and may be opened a relatively smaller amount to deliver cleaning solution at the second pressure. In some embodiments, theoutlet 160 of thedistribution nozzle 128 may be adjusted by, for example, manually rotating thenozzle 128. In other embodiments, theoutlet 160 may be adjusted by mechanically or electrically actuating thenozzle 128. -
FIGS. 7 and 8 illustrate a suction, or recovery,nozzle 172 that is usable to reduce the recovery rate of theextractor 120 to sanitize the surface being cleaned. The illustratedsuction nozzle 172 may be used with theextractor 120 instead of thesuction nozzle 140 shown inFIG. 4 . Thesuction nozzle 172 includes a recoveryrate adjustment mechanism 176. Theadjustment mechanism 176 is manually actuatable by a user to change the recovery rate, or suction efficiency, of thenozzle 172 and, thereby, theextractor 120. When in the wash mode, theadjustment mechanism 176 is configured such that thesuction nozzle 172 has a relatively higher recovery rate. In this mode, thesuction nozzle 172 leaves a first amount of cleaning solution on the surface being cleaned. When in the sanitize mode, theadjustment mechanism 176 is configured such that thesuction nozzle 172 has a relatively lower recovery rate. In this mode, thesuction nozzle 172 leaves a second, greater amount of cleaning solution on the surface being cleaned. By leaving more cleaning solution on the surface, theextractor 120 is capable of sanitizing the surface. - In the illustrated embodiment, the recovery
rate adjustment mechanism 176 includes a bleed hole 180 (FIG. 8 ) and anactuator 184. The illustratedactuator 184 is a valve or cover member. Thecover member 184 is movable (e.g., slidable and/or pivotable) relative to thebleed hole 180 to selectively open and close thebleed hole 180. When in the wash mode (FIG. 7 ), thebleed hole 180 is substantially covered by thecover member 184. When in the sanitize mode (FIG. 8 ), thebleed hole 180 is open (i.e., not covered by the cover member 184), creating a leak in thenozzle 172 to reduce the suction efficiency of thenozzle 172. In the illustrated embodiment, thecover member 184 is movable by manually pivoting themember 184. In other embodiments, thecover member 184 may be electrically pivoted. In some embodiments, theadjustment mechanism 176 may include multiple bleed holes. In such embodiments, all or some of the bleed holes may be selectively covered and uncovered to achieve the desired suction efficiency of thenozzle 172. - Referring back to
FIG. 4 , in another embodiment, theextractor 120 adjusts the amount of cleaning solution being delivered onto the surface being cleaned. In one construction, theextractor 120 delivers a greater volume of cleaning solution to the surface being cleaned when in the sanitize mode than when in the wash mode. In another construction, theextractor 120 delivers a greater concentration of cleaning solution to the surface being cleaned when in the sanitize mode than when in the wash mode. By delivering a greater volume and/or concentration of cleaning solution (particularly sanitizer) to the surface, more cleaning solution will be left on the surface for a given or constant recovery rate. - The illustrated
extractor 120 includes anactuator 188 supported on thehandle 156. In the illustrated embodiment, theactuator 188 is a mode selector having adial 192. Thedial 192 is rotatable to switch between the wash mode and the sanitize mode (and a rinse mode, if applicable). Thedial 192 is also coupled to thedistributor 132 to control operation of thedistributor 132. - To increase the volume of cleaning solution being delivered to a surface while in the sanitize mode, the
actuator 188 opens one or more valves in the distributor 132 a greater amount (compared to when in the wash mode) such that more sanitizer and water are drawn out of thesupply tank assembly 136. The total volume of cleaning solution being delivered to the surface by theextractor 120 is thereby increased. - To increase the concentration of cleaning solution being delivered to the surface while in the sanitize mode, the
actuator 188 opens a valve that is in communication with the first tank of the supply tank assembly 136 a greater amount (compared to when in the wash mode) such that more sanitizer is drawn out of thesupply tank assembly 136. In some embodiments, theactuator 188 may also partially close a valve that is in communication with the second tank of thesupply tank assembly 136 to decrease the amount of water being drawn out of theassembly 136. In such embodiments, the total volume of cleaning solution being delivered onto the surface by theextractor 120 is held relatively constant between the wash and sanitize modes, but the ratio of sanitizer to water is thereby increased. In some embodiments, theextractor 120 may deliver cleaning solution at a concentration of about 2.5% when in the wash mode and may deliver cleaning solution at a concentration of about 9% when in the sanitize mode. As such, the concentration of cleaning solution being delivered onto the surface when in the sanitize mode is between about three and four times higher than when in the wash mode. - In another embodiment, the recovery rate of the
extractor 120 may be adjusted by varying a motor speed of thesuction source 144. As noted above, thesuction source 144 includes amotor 196 that drives a fan to create a vacuum, and thereby suction, through thesuction nozzle 140. In the wash mode, themotor 196 is driven at a first, relatively high speed. In the sanitize mode, themotor 196 is driven at a second, relatively low speed. Suction through thesuction nozzle 140 is therefore greater when in the wash mode than when in the sanitize mode. As such, more cleaning solution is left on the surface being cleaned when in the sanitize mode than when in the wash mode. In some embodiments, theactuator 188 on thehandle 156 may be electrically coupled to thesuction source 144 to vary the motor speed. - In another embodiment, the recovery rate of the
extractor 120 may be adjusted by changing thesuction nozzle 140.FIG. 9 illustrates theextractor 120 with tworemovable suction nozzles first suction nozzle 140 is connected to thefoot 152 of theextractor 120 in fluid communication with thesuction source 144 and therecovery tank 148 when theextractor 120 is in the wash mode. Thesecond suction nozzle 200 is connected to thefoot 152 of theextractor 120 in fluid communication with thesuction source 144 and therecovery tank 148 when theextractor 120 is in the sanitize mode. The suction nozzles 140, 200 can be alternately attached to and removed from thefoot 152 with or without the use of tools. For example, in some embodiments, thesuction nozzles foot 152 using a latch mechanism or snap fits. In other embodiments, thesuction nozzles foot 152 using fasteners, such as screws. In some embodiments, bothsuction nozzles foot 152 simultaneously, but theextractor 120 may switch or toggle between thenozzles extractor 120 is in the wash mode or in the sanitize mode. - The suction nozzles 140, 200 are designed to have different recovery rates. The recovery rates of the
nozzles nozzles first suction nozzle 140 is designed to have a relatively high recovery rate such that less cleaning solution is left on the surface being cleaned. Thesecond suction nozzle 200 is designed to have a relatively low recovery rate such that more cleaning solution is left on the surface being cleaned. In some embodiments, thefirst suction nozzle 140 may have a recovery rate that is about 5% to 7% higher than the recovery rate of thesecond suction nozzle 200. By leaving more cleaning solution on the surface when using thesecond nozzle 200, theextractor 120 is capable of sanitizing the surface. In some embodiments, no suction nozzle may be attached to thefoot 152 when theextractor 120 is in the sanitize mode such that all of the cleaning fluid is unrecovered (i.e., left on the surface) during operation in the sanitize mode. -
FIGS. 10 and 11 illustrate a portion of anotherextractor 220. Although not shown, theextractor 220 generally includes the same components as theextractors - The illustrated
extractor 220 includes aport 224 configured to alternately receivebottles 228 of cleaning solution. For example, theport 224 may alternately receive a first bottle of detergent and a second bottle of sanitizer. Inserting thebottles 228 into the port fluidly connects thebottles 228 to a distributor and a distribution nozzle of theextractor 220. When theport 224 receives the first bottle, theextractor 220 is in a wash mode. When theport 224 receives the second bottle, theextractor 220 is in a sanitize mode. Thebottles 228 may be off-the-shelf bottles that are shaped and sized to fit directly into theport 224. Theextractor 220 mixes the detergent or sanitizer from thebottles 228 with water from a supply tank assembly to create a cleaning solution. - In the illustrated embodiment, the
port 224 is formed in abody 232 of theextractor 220 and includes apivotable latch 236. Thelatch 236 moves relative to thebody 232 between an unlocked position (FIG. 10 ) and a locked position (FIG. 11 ) to releasably secure thebottles 228 within theport 224. When in the unlocked position, theport 224 can receive and allows removal of one of thebottles 228. When in the locked position, thelatch 236 inhibits the attachedbottle 228 from being removed from theport 224. - The
extractor 220 also includes anactuator 240 supported on thebody 232 adjacent theport 224. The illustratedactuator 240 includes a rotatable knob. Theactuator 240 is coupled to avalve 244 to selectively fluidly connect thebottles 228 to the distributor. When the actuator is in a first position (FIG. 10 ), thevalve 244 is closed such that cleaning solution is not drawn out of the attachedbottle 228 by the distributor during operation of theextractor 220. When theactuator 240 is in a second position (shown in solid lines inFIG. 10 ), thevalve 244 is opened such that the distributor draws cleaning fluid out of the attachedbottle 228 during operation of theextractor 220. -
FIGS. 12 and 13 illustrate a portion of anotherextractor 320. Although not shown, theextractor 320 generally includes the same components as theextractors - The illustrated
extractor 320 includes a base 324 that supports adistribution nozzle 328, asuction nozzle 332, and abrush assembly 336. Thedistribution nozzle 328 extends from alower surface 340 of thebase 324 and defines anoutlet 344. Theoutlet 344 directs cleaning fluid onto asurface 348 to be cleaned. As shown inFIG. 12 , theoutlet 344 of thedistribution nozzle 328 is spaced a first vertical distance D1 from thesurface 348 when theextractor 320 is in a wash mode. As shown inFIG. 13 , theoutlet 344 of thedistribution nozzle 328 is spaced a second vertical distance D2 from thesurface 348 when theextractor 320 is in a sanitize mode. The second vertical distance D2 is less than the first vertical distance D1 so that theoutlet 344 is closer to thesurface 348 when theextractor 320 is in the sanitize mode than when theextractor 320 is in the wash mode. In other words, thedistribution nozzle 328 extends a further distance from thelower surface 340 of the base 324 when theextractor 320 is in the sanitize mode than when theextractor 320 is in the wash mode. Such an arrangement helps the cleaning solution being delivered by thedistribution nozzle 328 to penetrate the surface 348 a greater amount when in the sanitize mode than when in the wash mode. - In the illustrated embodiment, the
distribution nozzle 328 itself penetrates into thesurface 348 when theextractor 320 is in the sanitize mode. Thesurface 348 may be, for example, carpet that allows thedistribution nozzle 328 to extend into thesurface 348 between carpet fibers. In this position, the vertical distance D2 between theoutlet 344 of thedistribution nozzle 328 and thesurface 348 is less than zero. By penetrating thesurface 348, thedistribution nozzle 328 ensures that cleaning fluid is delivered deep into thesurface 348 to sanitize the surface. In other embodiments, thedistribution nozzle 328 may be positioned closer to thesurface 348 when theextractor 320 is in the sanitize mode than when theextractor 320 is in the wash mode, yet still be spaced above thesurface 348. In further embodiments, the second vertical distance D2 between thedistribution nozzle 328 and thesurface 348 may be zero when theextractor 320 is in the sanitize mode. - The
distribution nozzle 328 may be manually or automatically moved between the first position (FIG. 12 ) and the second position (FIG. 13 ) when theextractor 320 switches between the wash and sanitize modes. In some embodiments, an actuator, such as a lever or dial, may be mechanically linked to thedistribution nozzle 328 to move thenozzle 328 vertically relative to thelower surface 340 of thebase 324. In other embodiments, thedistribution nozzle 328 may be electrically driven by a motor (or other suitable component of the extractor 320) to move between the first and second positions. -
FIGS. 14 and 15 illustrate a portion of anotherextractor 420. Although not shown, theextractor 420 generally includes the same components as theextractors - The illustrated
extractor 420 includes a base 424 that supports adistribution nozzle 428, asuction nozzle 432, and abrush assembly 436. Theextractor 420 also includes adeflector 440 coupled to the base 424 adjacent thedistribution nozzle 428. Thedeflector 440 is movable relative to thebase 424 and thedistribution nozzle 428 between a first position (FIG. 14 ) and a second position (FIG. 15 ). In the illustrated embodiment, thedeflector 440 is pivotally coupled to the base 424 such that thedeflector 440 pivots between the first and second positions. In other embodiments, thedeflector 440 may slide linearly relative to the base 424 between the first and second positions. - The
deflector 440 includes a plate that is configured to selectively interfere with and deflect cleaning solution being delivered by thedistribution nozzle 428. When theextractor 420 is in a wash mode (as shown inFIG. 14 ), thedeflector 440 is positioned between thedistribution nozzle 428 and asurface 444 to be cleaned such that cleaning solution exiting thenozzle 428 contacts thedeflector 440 before reaching thesurface 444. Thedeflector 440 thereby interferes with delivery of the cleaning solution to reduce penetration of the solution into thesurface 444. When theextractor 420 is in a sanitize mode (as shown inFIG. 15 ), thedeflector 440 is moved away from between thedistribution nozzle 428 and thesurface 444 such that cleaning solution exiting thenozzle 428 does not contact thedeflector 440. In this position, thedeflector 440 does not interfere with delivery of the cleaning solution, allowing the cleaning solution to penetrate deeper into thesurface 444. - The
deflector 440 may be manually or automatically moved between the first, position (FIG. 14 ) and the second position (FIG. 15 ) when theextractor 420 switches between the wash and sanitize modes. In some embodiments, an actuator, such as a lever or dial, may be mechanically linked to thedeflector 440 to pivot thedeflector 440 relative to thebase 424. In other embodiments, thedeflector 440 may be electrically pivoted by a motor (or other suitable component of the extractor 420) to pivot between the first and second positions. -
FIGS. 16 and 17 illustrate a portion of anotherextractor 520. Although not shown, theextractor 520 generally includes the same components as theextractors - The illustrated
extractor 520 includes a base 524 that supports asuction nozzle 532 and abrush assembly 536. Thesuction nozzle 532 is located on a front of thebase 524, opposite fromrear wheels 540, to draw fluid and dirt from asurface 544 into a recovery tank (not shown). Thesuction nozzle 532 defines anopening 548 adjacent thesurface 544 and aflowpath 552 extending from theopening 548 to the recovery tank. In the illustrated embodiment, thesuction nozzle 532 also includes aport 556 formed in afront face 560 of thesuction nozzle 532. Theport 556 is configured to selectively receive a blocking member 564 (FIG. 17 ) to change a recovery rate of thesuction nozzle 532. Acover 568 is pivotally coupled to thesuction nozzle 532 to cover theport 556 when the blockingmember 564 is not positioned in theport 556. - As shown in
FIG. 16 , when theextractor 520 is in a wash mode, the blocking member 564 (FIG. 17 ) is not coupled to thesuction nozzle 532 and thecover 568 is closed. In this condition, theopening 548 and theflowpath 552 of thesuction nozzle 532 are substantially unblocked or unobstructed. As shown inFIG. 17 , when theextractor 520 is in a sanitize mode, thecover 568 is pivoted open and the blockingmember 564 is inserted into theport 556. In this condition, the blockingmember 564 extends into theflowpath 556 to block at least a portion of theflowpath 556. By obstructing theflowpath 556, the blockingmember 564 reduces the recovery rate of thesuction nozzle 532. As such, during operation, more cleaning solution will be left on thesurface 544 and not recovered by theextractor 520, thereby helping to sanitize thesurface 544. - In some embodiments, the blocking
member 564 may extend into thesuction nozzle 532 to completely block theflowpath 552. In such embodiments, the blockingmember 564 essentially inhibits any recovery of cleaning solution from thesurface 544 by preventing fluid and dirt from flowing through thesuction nozzle 532. In other embodiments, the blockingmember 564 may be inserted into theopening 548 of thesuction nozzle 532 when theextractor 520 is in the sanitize mode to partially or completely block theopening 548. In still other embodiments, multiple blockingmembers 564 may be coupled to thesuction nozzle 532 to block theflowpath 552 and/or theopening 548 and reduce the recovery rate of the nozzle 532 a desired amount when theextractor 520 is in the sanitize mode. -
FIGS. 18 and 19 illustrate abrush assembly 636 for use with an extractor (not shown). The extractor may be configured similar to theextractors extractors brush assembly 636 may be one of thebrush assemblies FIGS. 12-17 . - The
brush assembly 636 is configured to be supported on a base of the extractor adjacent a distribution nozzle. Thebrush assembly 636 extends from alower surface 640 of the base to engage asurface 644 to be cleaned. Thebrush assembly 636 is operable to agitate or scrub thesurface 644 to help cleaning solution penetrate thesurface 644. In some embodiments, thebrush assembly 636 includes a series of spin scrub brushes 648 that are electrically or pneumatically actuated (e.g., rotated) to scrub thesurface 644. In other embodiments, thebrush assembly 636 may include a single brush that is rotated to agitate thesurface 644. The illustratedbrush assembly 636 includes thebrushes 648, asupport member 652, and acam surface 656. Thebrushes 648 are rotatably mounted to a first side of thesupport member 652. Thecam surface 656 is formed on a second side of thesupport member 652 opposite from thebrushes 648. - The extractor also includes a
cam member 660 that selectively engages thecam surface 656 to move thebrush assembly 636 relative to the base. The illustratedcam member 660 is a wedge, although other suitable cam members may also or alternatively be employed. Thecam member 660 is slidable along thelower surface 640 of the base between a first position (FIG. 18 ), in which thecam member 660 is spaced apart from and disengages thebrush assembly 636, and a second position (FIG. 19 ), in which thecam member 660 engages thebrush assembly 636. As shown inFIG. 19 , thecam member 660 slides in a generally horizontal direction A (e.g., in a direction parallel to the lower surface 640) to engage thecam surface 656 of thebrush assembly 636. As thecam member 660 engages thebrush assembly 636, thecam member 660 pushes thebrush assembly 636 in a generally vertical direction B (e.g., in a direction perpendicular to the lower surface 640) toward thesurface 644 to be cleaned. - When the
brush assembly 636 and thecam member 660 are in the first position (FIG. 18 ), the extractor is in a wash mode. In this position, thebrush assembly 636 floats freely on the base and engages thesurface 644 with a first force. When thebrush assembly 636 and thecam member 660 are in the second position (FIG. 19 ), the extractor is in a sanitize mode. In this position, thebrush assembly 636 is wedged downward by thecam member 660 such that thebrush assembly 636 engages thesurface 644 with a second force that is greater than the first force. By engaging thesurface 644 with a greater force, thebrush assembly 636 is able to scrub thesurface 644 harder, thereby helping the cleaning solution penetrate deeper into thesurface 644. - The
cam member 660 may be manually or automatically moved between the first position and the second position when the extractor switches between the wash and sanitize modes. In some embodiments, an actuator, such as a lever or dial, may be mechanically linked to thecam member 660 to slide thecam member 660 along thelower surface 640 of the base. In other embodiments, thecam member 660 may be electrically moved by a motor (or other suitable component of the extractor) to slide between the first and second positions. - In other embodiments, the
brush assembly 636 may be pressed into thesurface 644 with greater force when the extractor is in the sanitize mode than when the extractor is in the wash mode by pivoting closer to thesurface 644. Additionally or alternatively, a motor of the extractor may drive thebrush assembly 636 harder (e.g., faster) when the extractor is in the sanitize mode than when the extractor is in the wash mode. -
FIG. 20 illustrates a portion of anotherextractor 720. Although not shown, theextractor 720 generally includes the same components as theextractors - The illustrated
extractor 720 includes abase 724 and asuction nozzle 728 supported by thebase 724. Thesuction nozzle 728 is located on a front of thebase 724, opposite fromrear wheels 732. Thesuction nozzle 728 defines anopening 736 and a flowpath 740 (FIG. 25 ). Theopening 736 communicates with asurface 744 to be cleaned (FIG. 26 ) to draw fluid and dirt from thesurface 744 into thesuction nozzle 728. Theflowpath 740 extends from theopening 736 to a recovery tank (not shown) to direct fluid and dirt drawn up through theopening 736 into the recovery tank. - The
extractor 720 also includes twolift members 748 coupled to thesuction nozzle 728. As shown inFIGS. 21-24 , eachlift member 748 includes abase portion 752 and twotabs base portion 752. Thebase portion 752, or ski, includes an upwardly-titledforward end 764 and an upwardly-titledrearward end 768. A larger section of thebase portion 752 is upwardly-tilted at theforward end 764 than at therearward end 768. Thebase portion 752 is configured to engage and ride along the surface 744 (FIG. 26 ) during operation of theextractor 720. Thetabs tab lift member 748 to thesuction nozzle 728. When at rest, thetabs first tab 756 is bent slightly toward theforward end 764 of thebase portion 752, while thesecond tab 760 is bent slightly toward therearward end 768 of thebase portion 752. -
FIG. 25 illustrates steps for connecting one of thelift members 748 to thesuction nozzle 728. First, starting at the leftmost drawing, the twotabs tabs base portion 752. When thetabs tabs opening 736 of thesuction nozzle 728. Once inserted into thesuction nozzle 728, as shown in the rightmost drawing, thetabs inner surfaces suction nozzle 728. Thelift member 748 is thereby releasably secured within thesuction nozzle 728 such that thelift member 748 will not fall out of thesuction nozzle 728, but can be pulled out of thenozzle 728 to disconnect thelift member 748 from thenozzle 728. - As shown in
FIG. 26 , when thelift members 748 are coupled to thesuction nozzle 728, thelift members 748 lift or raise thesuction nozzle 728 further away from thesurface 744 to be cleaned than if thelift members 748 were not present. Raising thesuction nozzle 728 of theextractor 720 away from thesurface 744 lowers a recovery rate of theextractor 720 and, more particularly, of thenozzle 728. In addition, thelift members 748 block a portion of theopening 736 to further reduce the recovery rate of the suction nozzle 728 (similar to the blockingmember 564 shown inFIG. 17 ). During operation of theextractor 720 with thelift members 748, more cleaning solution will be left on thesurface 744 and not recovered by theextractor 720. As such, thelift members 748 are connected to and usable with theextractor 720 when theextractor 720 is in a sanitize mode. Conversely, thelift members 748 are removed from thesuction nozzle 728 when theextractor 720 is in a wash mode. In other embodiments, fewer ormore lift members 748 may be coupled to thesuction nozzle 728 and/or thelift members 748 may be relatively taller or shorter to adjust the recovery rate of the suction nozzle 728 a desired amount. -
FIG. 27 illustrates a portion of anotherextractor 820. Although not shown, theextractor 820 generally includes the same components as theextractors - The illustrated
extractor 820 includes a base 824 that supports adistribution nozzle 828, asuction nozzle 832, and abrush assembly 836. Theextractor 820 also includes agrooming member 840 coupled to the base 824 adjacent thedistribution nozzle 828. In the illustrated embodiment, thegrooming member 840 is located between thedistribution nozzle 828 and thesuction nozzle 832, but may alternatively be located between thedistribution nozzle 828 and thebrush assembly 836. Thegrooming member 840 extends from alower surface 844 of thebase 824 and is configured to engage asurface 848 to be cleaned. Thegrooming member 840 may extend across an entire width of thebase 824, or may extend across a portion of the width equal to the spray area of thedistribution nozzle 828. As shown inFIG. 28 , thegrooming member 840 includes a plurality ofteeth 852 defining a plurality ofgaps 856 therebetween. Theteeth 852 mechanically groom or plow the surface 848 (e.g., carpet) to facilitate penetration of cleaning fluid deeper into thesurface 848. - In some embodiments, such as the illustrated embodiment, the
grooming member 840 may be retractable such that thegrooming member 840 is spaced apart from thesurface 848 when theextractor 820 is in a wash mode, but engages thesurface 848 when theextractor 820 is in a sanitize mode. For example, thegrooming member 840 may pivot or rotate to lay flat against thelower surface 844 of the base 824 when theextractor 820 is in the wash mode. Alternatively, thegrooming member 840 may slide linearly into the base 824 when theextractor 820 is in the wash mode. In such embodiments, cleaning fluid delivered by thedistribution nozzle 828 will penetrate further into thesurface 848 when thegrooming member 840 is extended (i.e., when theextractor 820 is in the sanitize mode) than when thegrooming member 840 is retracted (i.e., when theextractor 820 is in the wash mode). - The
grooming member 840 may be manually or automatically moved between retracted and extended positions when theextractor 820 switches between the wash and sanitize modes. In some embodiments, an actuator, such as a lever or dial, may be mechanically linked to thegrooming member 840 to pivot or slide thegrooming member 840 relative to thebase 824. In other embodiments, thegrooming member 840 may be electrically moved by a motor (or other suitable component of the extractor 820) between the retracted and extended positions. - In some embodiments, a surface to be cleaned may also be sanitized by pre-treating the surface with a sanitizer and then using one of the extractors described above. For example, the extractor may include a pressurized liquid spray module to dispense sanitizer onto the surface. The spray module may be battery operated, may include a hand pump, or may be an aerosol container. Alternately, the extractor may include a dry dispenser module for dispensing solid or powder sanitizer onto the surface. In such embodiments, the dry sanitizer may later be wetted by the extractor. Furthermore, the extractor may include a vaporizer module to spray sanitizer fluid onto the surface. In each of these embodiments, these modules may be stored on or part of the extractor such that the modules and the extractor are an integrated unit.
- Although the invention has been described above with reference to certain preferred embodiments, variations and modifications exist within the spirit and scope of the present invention. In some embodiments, two or more of the features described above may be used in combination to implement a sanitize mode on an extractor. For example, in one embodiment, the angle of the distribution nozzle, the delivery pressure of the cleaning solution, and the recovery rate of the suction nozzle may all be varied when the extractor is in a sanitize mode. In another embodiment, the extractor may include a supply tank assembly having discrete tanks for detergent and sanitizer and two or more interchangeable suction nozzles to switch between a wash mode and a sanitize mode. Other combinations of features are also within the scope of this invention.
- Various features and advantages of the invention are set forth in the following claims.
Claims (18)
1. A floor cleaning machine for cleaning a surface, the floor cleaning machine comprising:
a body;
a distribution nozzle supported by the body;
a supply tank assembly coupled to the body in fluid communication with the distribution nozzle, the supply tank assembly including a first tank, a second tank, and a third tank;
a suction nozzle supported by the body;
a suction source in fluid communication with the suction nozzle, the suction source operable to draw fluid and dirt from the surface through the suction nozzle; and
a recovery tank coupled to the body in fluid communication with the suction source to receive and store fluid and dirt drawn through the suction nozzle;
wherein the floor cleaning machine is operable in a first mode to wash the surface and is operable in a second mode to sanitize the surface, and
wherein the distribution nozzle delivers a first cleaning solution onto the surface when the floor cleaning machine is in the first mode, and wherein the distribution nozzle delivers a second cleaning solution that is different than the first cleaning solution onto the surface when the floor cleaning machine is in the second mode.
2. The floor cleaning machine of claim 1 , wherein the floor cleaning machine kills at least 99% of microorganisms on the surface when operating in the second mode.
3. The floor cleaning machine of claim 1 , wherein the floor cleaning machine is further operable in a third mode to rinse the surface.
4. The floor cleaning machine of claim 1 , wherein the first tank stores the first cleaning solution, the second tank stores the second cleaning solution, and the third tank stores water.
5. The floor cleaning machine of claim 4 , wherein the first cleaning solution includes a detergent and the second cleaning solution includes a sanitizer.
6. The floor cleaning machine of claim 4 , wherein the first tank, the second tank, and the third tank are integrally formed as a single unit.
7. The floor cleaning machine of claim 1 , wherein the body includes a port configured to alternately receive a first bottle containing the first cleaning solution and a second bottle containing the second cleaning solution, and wherein the port is in fluid communication with at least one of the distribution nozzle and the supply tank assembly.
8. The floor cleaning machine of claim 1 , wherein the floor cleaning machine has a first recovery rate while in the first mode and a second recovery rate while in the second mode, and wherein the second recovery rate is less than the first recovery rate.
9. The floor cleaning machine of claim 8 , wherein the first recovery rate is at least 5% higher than the second recovery rate.
10. The floor cleaning machine of claim 1 , further comprising an actuator operable to switch the floor cleaning machine between the first mode and the second mode.
11. The floor cleaning machine of claim 1 , wherein the body includes a foot that is movable along the surface and a handle that is pivotally coupled to the foot.
12. A floor cleaning machine for cleaning a surface, the floor cleaning machine comprising:
a body;
an actuator supported by the body;
a distribution nozzle supported by the body; and
a supply tank assembly coupled to the body in fluid communication with the distribution nozzle, the supply tank including a first tank that stores a first cleaning solution, a second tank that stores a second cleaning solution that is different from the first cleaning solution, and a third tank that stores water;
wherein the floor cleaning machine is operable in a first mode to wash the surface, is operable in a second mode to sanitize the surface, and is operable in a third mode to rinse the surface; and
wherein the distribution nozzle delivers the first cleaning solution onto the surface when the floor cleaning machine is in the first mode, and wherein the distribution nozzle delivers the second cleaning solution onto the surface when the floor cleaning machine is in the second mode.
13. The floor cleaning machine of claim 12 , wherein the distribution nozzle delivers water onto the surface when the floor cleaning machine is in the third mode.
14. The floor cleaning machine of claim 13 , wherein the actuator is manually operable to switch between the first mode, the second mode, and the third mode.
15. The floor cleaning machine of claim 14 , wherein the actuator includes a rotatable dial that rotates to switch between the first mode, the second mode, and the third mode.
16. The floor cleaning machine of claim 12 , wherein the first cleaning solution includes a detergent and the second cleaning solution includes a sanitizer.
17. The floor cleaning machine of claim 12 , wherein the first tank, the second tank, and the third tank are integrally formed as a single unit.
18. The floor cleaning machine of claim 12 , further comprising:
a suction nozzle supported by the body;
a suction source in fluid communication with the suction nozzle, the suction source operable to draw fluid and dirt from the surface through the suction nozzle; and
a recovery tank coupled to the body in fluid communication with the suction source to receive and store fluid and dirt drawn through the suction nozzle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/950,639 US20180228337A1 (en) | 2013-03-14 | 2018-04-11 | Floor cleaning machine including a sanitize mode |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/827,273 US9968235B2 (en) | 2013-03-14 | 2013-03-14 | Floor cleaning machine including a sanitize mode |
US15/950,639 US20180228337A1 (en) | 2013-03-14 | 2018-04-11 | Floor cleaning machine including a sanitize mode |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/827,273 Continuation US9968235B2 (en) | 2013-03-14 | 2013-03-14 | Floor cleaning machine including a sanitize mode |
Publications (1)
Publication Number | Publication Date |
---|---|
US20180228337A1 true US20180228337A1 (en) | 2018-08-16 |
Family
ID=50686141
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/827,273 Active 2035-12-22 US9968235B2 (en) | 2013-03-14 | 2013-03-14 | Floor cleaning machine including a sanitize mode |
US15/950,639 Abandoned US20180228337A1 (en) | 2013-03-14 | 2018-04-11 | Floor cleaning machine including a sanitize mode |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/827,273 Active 2035-12-22 US9968235B2 (en) | 2013-03-14 | 2013-03-14 | Floor cleaning machine including a sanitize mode |
Country Status (5)
Country | Link |
---|---|
US (2) | US9968235B2 (en) |
EP (1) | EP2967270B1 (en) |
CN (2) | CN107981803A (en) |
AU (1) | AU2014101558A4 (en) |
WO (1) | WO2014160260A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220313036A1 (en) * | 2018-08-27 | 2022-10-06 | Techtronic Floor Care Technology Limited | Floor cleaner |
USD1017156S1 (en) | 2022-05-09 | 2024-03-05 | Dupray Ventures Inc. | Cleaner |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD763525S1 (en) * | 2013-01-07 | 2016-08-09 | Techtronic Floor Care Technology Limited | Floor cleaner |
US9820627B2 (en) * | 2013-07-17 | 2017-11-21 | Bissell Homecare, Inc. | Vacuum cleaner with fluid distribution system |
CN107837040A (en) * | 2016-09-17 | 2018-03-27 | 杭州匠龙机器人科技有限公司 | Intelligent cleaning device |
AU2017101723A4 (en) | 2016-12-16 | 2018-01-18 | Bissell Inc. | Surface cleaning apparatus |
EP3664680B1 (en) * | 2017-08-11 | 2021-07-28 | Alfred Kärcher SE & Co. KG | Surface cleaning machine comprising a lid device for a tank device for dirty fluid |
US11357379B2 (en) * | 2018-05-09 | 2022-06-14 | Nilfisk A/S | Fluid manifolds for floor cleaning machine |
EP3787467A1 (en) | 2018-09-21 | 2021-03-10 | Techtronic Floor Care Technology Limited | Cleaning tool for an extractor |
US11497371B2 (en) | 2019-12-19 | 2022-11-15 | Techtronic Floor Care Technology Limited | Floor cleaner |
US20230033367A1 (en) * | 2019-12-20 | 2023-02-02 | Techtronic Cordless Gp | A cleaner head for a cleaning appliance |
CN111466836A (en) * | 2020-04-13 | 2020-07-31 | 深圳市银星智能科技股份有限公司 | Cleaning robot and cleaning method thereof |
AU2022291569A1 (en) | 2022-01-10 | 2023-07-27 | Bissell Inc. | Surface cleaning apparatus with steam |
US11986139B2 (en) | 2022-02-02 | 2024-05-21 | Bissell Inc. | Extraction cleaner with steam |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6192548B1 (en) * | 1997-07-09 | 2001-02-27 | Bissell Homecare, Inc. | Upright extraction cleaning machine with flow rate indicator |
US7475712B2 (en) * | 1997-08-13 | 2009-01-13 | Bissell Homecare, Inc. | Extraction cleaning with tank mounting |
US20090235481A1 (en) * | 2008-03-20 | 2009-09-24 | Harald Gosebruch | Floor cleaning machine with a water softening device |
US8016996B2 (en) * | 2006-02-10 | 2011-09-13 | Tennant Company | Method of producing a sparged cleaning liquid onboard a mobile surface cleaner |
US9320402B2 (en) * | 2011-09-02 | 2016-04-26 | Techtronic Floor Care Technology Limited | Supply tank for an extractor cleaning machine |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2114470A1 (en) * | 1993-01-29 | 1994-07-30 | Antonietta P. Martin | Glutaraldehyde composition |
US5500977A (en) | 1994-01-14 | 1996-03-26 | The Hoover Company | Upright carpet extractor |
CA2132394C (en) | 1994-01-14 | 1998-10-13 | David G. Mueller | Liquid recovery tank for a carpet extractor |
US6009593A (en) | 1995-08-11 | 2000-01-04 | The Hoover Company | Carpet extractor brush assembly |
US5867857A (en) | 1995-08-11 | 1999-02-09 | The Hoover Company | Carpet extractor fluid supply system |
US7862623B1 (en) * | 1997-07-09 | 2011-01-04 | Bissell Homecare, Inc. | Extraction cleaning with oxidizing agent |
DE69928163T2 (en) | 1998-04-22 | 2006-05-24 | JohnsonDiversey, Inc., Sturtevant | Floor cleaning machine |
US6066348A (en) | 1998-09-23 | 2000-05-23 | American Air Liquide Inc. | Method of disinfecting a foodstuff using gaseous ozone |
US6368373B1 (en) | 1999-06-04 | 2002-04-09 | The Hoover Company | Air and liquid separator for a carpet extractor |
CN2498978Y (en) | 2001-07-17 | 2002-07-10 | 王冬雷 | Water absorption drying type vacuum cleaner |
US7987552B2 (en) * | 2004-11-17 | 2011-08-02 | Techtronic Floor Care Technology Limited | Floor care appliance with a plurality of cleaning modes |
CN102357480B (en) * | 2006-02-10 | 2014-06-18 | 坦能公司 | Method for producing electrochemically activated cleaning liquid |
US7819127B1 (en) * | 2006-11-27 | 2010-10-26 | Bissell Homecare, Inc. | Surface cleaning apparatus with ionized liquid supply |
WO2009042663A1 (en) * | 2007-09-24 | 2009-04-02 | Royal Appliance Mfg. Co. D/B/A Tti Floorcare North America | Extraction cleaning apparatus |
US8381352B2 (en) | 2009-10-06 | 2013-02-26 | Bissell Homecare, Inc. | Extraction with temporary suction interrupt |
US8627543B2 (en) * | 2010-03-12 | 2014-01-14 | Euro-Pro Operating Llc | Cleaning appliance having multiple functions |
US9028617B2 (en) * | 2011-04-12 | 2015-05-12 | Diversey, Inc. | Cleaning device with single tank recycling system |
US9474424B2 (en) * | 2012-06-01 | 2016-10-25 | Bissell Homecare, Inc. | Surface cleaning apparatus |
-
2013
- 2013-03-14 US US13/827,273 patent/US9968235B2/en active Active
-
2014
- 2014-03-13 CN CN201711320781.2A patent/CN107981803A/en active Pending
- 2014-03-13 EP EP14722853.0A patent/EP2967270B1/en active Active
- 2014-03-13 WO PCT/US2014/026186 patent/WO2014160260A2/en active Application Filing
- 2014-03-13 CN CN201480026673.2A patent/CN105208907B/en active Active
- 2014-03-13 AU AU2014101558A patent/AU2014101558A4/en not_active Ceased
-
2018
- 2018-04-11 US US15/950,639 patent/US20180228337A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6192548B1 (en) * | 1997-07-09 | 2001-02-27 | Bissell Homecare, Inc. | Upright extraction cleaning machine with flow rate indicator |
US7475712B2 (en) * | 1997-08-13 | 2009-01-13 | Bissell Homecare, Inc. | Extraction cleaning with tank mounting |
US8016996B2 (en) * | 2006-02-10 | 2011-09-13 | Tennant Company | Method of producing a sparged cleaning liquid onboard a mobile surface cleaner |
US20090235481A1 (en) * | 2008-03-20 | 2009-09-24 | Harald Gosebruch | Floor cleaning machine with a water softening device |
US9320402B2 (en) * | 2011-09-02 | 2016-04-26 | Techtronic Floor Care Technology Limited | Supply tank for an extractor cleaning machine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220313036A1 (en) * | 2018-08-27 | 2022-10-06 | Techtronic Floor Care Technology Limited | Floor cleaner |
US11751734B2 (en) * | 2018-08-27 | 2023-09-12 | Techtronic Floor Care Technology Limited | Floor cleaner |
US20230380645A1 (en) * | 2018-08-27 | 2023-11-30 | Techtronic Floor Care Technology Limited | Floor cleaner |
USD1017156S1 (en) | 2022-05-09 | 2024-03-05 | Dupray Ventures Inc. | Cleaner |
Also Published As
Publication number | Publication date |
---|---|
WO2014160260A3 (en) | 2014-11-20 |
US20140259514A1 (en) | 2014-09-18 |
CN105208907A (en) | 2015-12-30 |
US9968235B2 (en) | 2018-05-15 |
WO2014160260A2 (en) | 2014-10-02 |
EP2967270B1 (en) | 2019-10-09 |
CN107981803A (en) | 2018-05-04 |
EP2967270A2 (en) | 2016-01-20 |
CN105208907B (en) | 2018-01-16 |
AU2014101558A4 (en) | 2015-10-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20180228337A1 (en) | Floor cleaning machine including a sanitize mode | |
EP2611345B1 (en) | Surface cleaning machine | |
US20210345851A1 (en) | Surface cleaning apparatus | |
CA2367603C (en) | Mixing pump for carpet extractor | |
US7350262B2 (en) | Floor care appliance with tool caddy | |
CN108348125B (en) | Extractor cleaning machine | |
US9295365B2 (en) | Extractor with auxiliary fluid dispenser | |
CN111345732B (en) | Extractor cleaning machine | |
US20060236494A1 (en) | Hard and soft floor surface cleaner | |
US8635740B2 (en) | Flow control of an extractor cleaning machine | |
US11849894B2 (en) | Cleaning apparatus with fluid diverter | |
GB2407967A (en) | Method and apparatus for distributing fragrance on a cleaning surface |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TECHTRONIC FLOOR CARE TECHNOLOGY LIMITED, VIRGIN I Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:VAIL, KEVIN;QUINN, PATRICK J.;SALO, ROBERT A.;AND OTHERS;SIGNING DATES FROM 20130620 TO 20130828;REEL/FRAME:045508/0359 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: FINAL REJECTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |