US20150257621A1 - Air duct for an extractor cleaning machine - Google Patents
Air duct for an extractor cleaning machine Download PDFInfo
- Publication number
- US20150257621A1 US20150257621A1 US14/208,835 US201414208835A US2015257621A1 US 20150257621 A1 US20150257621 A1 US 20150257621A1 US 201414208835 A US201414208835 A US 201414208835A US 2015257621 A1 US2015257621 A1 US 2015257621A1
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- US
- United States
- Prior art keywords
- cleaning machine
- tank
- extractor cleaning
- inlet
- air duct
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/34—Machines for treating carpets in position by liquid, foam, or vapour, e.g. by steam
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
- A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/408—Means for supplying cleaning or surface treating agents
- A47L11/4083—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
- A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
- A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
- A47L7/0009—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners with means mounted on the nozzle; nozzles specially adapted for the recovery of 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
- A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
- A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
- A47L7/0023—Recovery tanks
Definitions
- the present invention relates to extractor cleaning machines and, more particularly, to air ducts for extractor cleaning machines.
- An extractor cleaning machine typically includes a recovery tank for recovering liquids and dirt drawn off of a surface being cleaned by a suction nozzle.
- An air duct fluidly connects the recovery tank and the suction nozzle.
- the invention includes an extractor cleaning machine having a base movable along a surface to be cleaned.
- the base includes a suction nozzle.
- the extractor cleaning machine further includes a body coupled to the base.
- the extractor cleaning machine also includes 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 extractor cleaning machine further includes a recovery tank configured to store the fluid and dirt drawn through the suction nozzle and a tank tray coupled to at least one of the base and the body.
- the tank tray including a top surface and a bottom surface.
- the recovery tank is coupled to the tank tray adjacent the top surface.
- the extractor cleaning machine also includes an air duct having a duct inlet and a duct outlet. The air duct is coupled to the tank tray to define a passageway that fluidly couples the recovery tank and the suction nozzle.
- FIG. 1 is a perspective view of an extractor cleaning machine according to one embodiment of the invention.
- FIG. 2 is a perspective view of a portion of the extractor cleaning machine shown in FIG. 1 with a base removed.
- FIG. 3 is a perspective view of a portion of the extractor cleaning machine shown in FIG. 2 with a portion of a body removed.
- FIG. 4 is an exploded perspective view of a portion of the extractor cleaning machine shown in FIG. 1 including a tank tray and a recovery tank.
- FIG. 5 is an exploded perspective view of a portion of the extractor cleaning machine shown in FIG. 1 including an air duct and the tank tray.
- FIG. 6 is a perspective view of the air duct attached to the tank tray.
- FIG. 1 illustrates an extractor cleaning machine 10 (hereinafter referred to simply as an “extractor”).
- the extractor 10 is an upright extractor operable to clean a surface, such as, for example, a floor.
- the extractor 10 may be adapted to clean a variety of surfaces, such as carpets, hardwood floors, tiles, or the like.
- the extractor 10 distributes or sprays a cleaning fluid (e.g., water, detergent, or a mixture of water and detergent) onto the surface to clean the surface.
- the extractor 10 then draws the cleaning fluid and dirt off of the surface, leaving the surface relatively clean.
- a cleaning fluid e.g., water, detergent, or a mixture of water and detergent
- the illustrated extractor 10 includes a base 14 (other extractors such as non-upright-type extractors, might include a different type of base), a body 18 coupled to the base 14 and the body 18 including a handle 20 .
- the extractor 10 further includes a suction source 22 supported by the body 18 ( FIG. 3 ), a tank tray 26 , a recovery tank 30 supported by the tank tray 26 ( FIG. 2 ), a distribution system (not shown), and a supply tank assembly 38 coupled to the body 18 .
- the suction source 22 is generally underneath the recovery tank 30 ( FIG. 3 ).
- the suction source 22 may be supported by the body 18 or may be positioned elsewhere on the extractor 10 .
- the suction source 22 includes an electric motor and a fan. The motor rotates the fan to generate airflow.
- the tank tray 26 is positioned between the recovery tank 30 and the base 14 while in contact with and supporting the recovery tank 30 .
- the tank tray 26 is fixed to the body 18 with fasteners 50 received in screw embossments 46 cooperating with mating portions of the body.
- the tank tray may be attached by other fastening techniques.
- the tank tray 26 extends from the handle 20 at a generally normal orientation to the handle 20 in the illustrated embodiment. In other embodiments, the tank tray 26 may be coupled to the base 14 .
- the base 14 is movable along the surface to be cleaned.
- Two or more wheels 54 may be coupled to the base 14 to facilitate movement of the base 14 along the surface.
- the wheels 54 are idle wheels. In other embodiments, the wheels 54 may be driven wheels.
- the base 14 further includes a suction nozzle 42 and a brush assembly 62 adjacent a lower surface 66 of the base 14 .
- the suction nozzle 42 draws fluid and dirt from the surface via the suction source 22 into the recovery tank 30 .
- the brush assembly 62 is adjacent the suction nozzle 42 to scrub the surface.
- the brush assembly 62 also helps inhibit fluid from flowing beyond a periphery of the base 14 .
- individual brushes of the brush assembly 62 may be electrically or pneumatically rotated to agitate and scrub the surface.
- the fluid distribution system is in fluid communication with the supply tank assembly 38 to draw cleaning fluid from the supply tank assembly 38 and distribute the fluid to the surface.
- the fluid distribution system may include a pump that propels the cleaning fluid to the surface.
- the illustrated body 18 is pivotally coupled to and extends from the base 14 .
- the body 18 is pivotable or tiltable relative to the base 14 from a generally vertical, or upright, storage position show in FIG. 1 to one or more non-vertical, or inclined, operating positions. Pivoting the body 18 to an operating position facilitates moving the base 14 along the surface.
- the body 18 supports a trigger 70 and optionally a mode switch 74 .
- the trigger 70 is actuatable to spray cleaning fluid from the supply tank assembly 38 through the distribution system onto the surface.
- the mode switch 74 adjusts the operating mode (i.e., wash, rinse, auto-rinse, etc.) of the extractor 10 .
- the illustrated body 18 also supports an auxiliary hose 78 .
- the auxiliary hose 78 is connectable to a variety of hand-held tools to clean smaller surfaces, such as, for example, steps.
- FIG. 4 illustrates the tank tray 26 and the recovery tank 30 separately detached from the extractor 10 .
- the tank tray 26 includes a top surface 82 that supports the recovery tank 30 , a bottom surface 86 opposite of the top surface 82 , and an air duct 146 coupled to the tank tray 26 to define a passageway that fluidly couples the recovery tank 130 and the suction nozzle 42 .
- a tube 96 connects the suction nozzle 42 to the air duct 146 .
- the tank tray 26 may include a tank inlet aperture 94 in fluid communication with an outlet of the air duct 146 and an inlet of the recovery tank 30 .
- the tank tray may include an air passage outlet aperture 90 positioned near the body 18 when the tank tray 26 is attached to the extractor 10 .
- the apertures 90 , 94 provide communication through the tank tray 26 and may be configured and located as desired for the application, such as in various geometries such as rectangular, circular, square, etc.
- the tank inlet aperture 94 defines an axis 122 and provides fluid flow to the recovery tank 30 while the air passage aperture 90 receives air flow exhausting from the recovery tank 30 .
- fluid-sealing gaskets 126 are located on the top surface 82 adjacent the apertures 90 , 94 in generally the same geometric configuration as the apertures 90 , 94 .
- the airflow entering the recovery tank or exhausting from the recovery tank may be routed in a path that does not pass through the tank tray.
- the illustrated tank tray 26 further includes a wall 106 that provides a perimeter around at least a portion of the tank tray 26 .
- the wall 106 enables the recovery tank 30 to be easily received on the tank tray 26 when the recovery tank 30 is removed and attached to the tray 26 .
- an auxiliary tool inlet 114 is located adjacent the wall 106 at the front of the tray 26 and defines an inlet axis 118 ( FIG. 5 ).
- the suction source 22 In operation, the suction source 22 generates an airflow that is drawn through the suction nozzle 42 . If cleaning fluid from the supply tank assembly 38 was sprayed onto the surface, then the suction source 22 also draws at least a portion of the cleaning fluid from the surface through the suction nozzle 42 . The airflow and cleaning solution is drawn through the nozzle 42 , through the hose 96 and into the air duct 146 that is attached to the bottom surface 86 of the recovery tank 30 . The airflow and cleaning solution then travel through the aperture 94 in the illustrated embodiment, and travel into the recovery tank 30 . In the recovery tank 30 the dirty cleaning solution is separated from the airflow, and the airflow is discharged through the aperture 90 and eventually discharged to atmosphere.
- the auxiliary hose 78 When the auxiliary hose 78 is inserted into inlet 114 , the auxiliary hose 78 blocks a suction nozzle inlet 174 of the duct 146 . Therefore, when the auxiliary hose 78 is received in the inlet 114 as shown in FIG. 5 , the suction source 22 generally does not draw an airflow through the suction nozzle 42 .
- FIG. 5 illustrates one embodiment of the air duct 146 , which will be described in detail below.
- the illustrated air duct 146 includes an open top portion 150 , a duct inlet 154 at a distal end, a duct outlet 158 at the other distal end, and walls 136 connecting the duct inlet 154 and the duct outlet 158 .
- the air duct 146 further defines a cavity 162 in communication with the duct inlet 154 and the duct outlet 158 .
- the air duct 146 includes a nonlinear central axis 166 that extends from the duct inlet 154 to the duct outlet 158 generally defining the longitudinal shape of the air duct 146 .
- the open top portion 150 includes a duct groove 170 fully enclosing a perimeter of the air duct 146 .
- the duct groove 170 extends beyond the walls 136 away from the cavity 162 .
- the duct groove 170 is configured as a continuous perimeter around the air duct 146 with a complementary profile to a lip 130 on the tank tray 26 .
- the lip 130 of the tank tray 26 is inserted into the duct groove 170 of the air duct 146 to provide a mating area to rigidly and fluidly bond the air duct 146 to the tank tray 26 ( FIG. 5 ).
- the air duct 146 is attached to the tank tray 26 by an ultrasonic welding process.
- the air duct 146 is attached to the tank tray 26 by other bonding processes (adhesives and other welding techniques).
- the duct groove 170 may be configured as a non-continuous perimeter of the air duct 146 . In other embodiments, the duct groove 170 may extend into the cavity 162 .
- the duct inlet 154 includes the suction nozzle inlet 174 in communication with the cavity 162 .
- the suction nozzle inlet 174 extends away from the open top portion 150 and defines an inlet axis 120 ( FIG. 2 ).
- the suction nozzle inlet 174 includes a threaded portion 178 configured with internal threads ( FIG. 6 ).
- the threaded portion 178 couples the hose 96 ( FIG. 1 ) to the air duct 146 .
- the threaded portion 178 may be configured with external threads, or may be an opening sufficient to create a positive seal with mating suction nozzle.
- the duct inlet 154 includes fingers 182 adjacent the suction nozzle inlet 174 extending away from the open top portion 150 .
- the fingers 182 include protrusions 186 generally extending laterally from the fingers 182 .
- the protrusion 186 pivotally couple the auxiliary cover 198 to the air duct 146 .
- FIG. 6 illustrates the air duct 146 attached to the tank tray 26 to define a passageway 190 .
- the passageway 190 generally follows the nonlinear central axis 166 of the air duct 146 fluidly coupling the duct inlet 154 and the duct outlet 158 .
- the air duct 146 is coupled to the bottom surface 86 of the tank tray 26 .
- the air duct 146 may be coupled to the top surface 82 of the tank tray 26 while preserving fluid communication with the recovery tank 30 .
Abstract
Description
- The present invention relates to extractor cleaning machines and, more particularly, to air ducts for extractor cleaning machines.
- An extractor cleaning machine typically includes a recovery tank for recovering liquids and dirt drawn off of a surface being cleaned by a suction nozzle. An air duct fluidly connects the recovery tank and the suction nozzle.
- In one aspect, the invention includes an extractor cleaning machine having a base movable along a surface to be cleaned. The base includes a suction nozzle. The extractor cleaning machine further includes a body coupled to the base. The extractor cleaning machine also includes 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 extractor cleaning machine further includes a recovery tank configured to store the fluid and dirt drawn through the suction nozzle and a tank tray coupled to at least one of the base and the body. The tank tray including a top surface and a bottom surface. The recovery tank is coupled to the tank tray adjacent the top surface. The extractor cleaning machine also includes an air duct having a duct inlet and a duct outlet. The air duct is coupled to the tank tray to define a passageway that fluidly couples the recovery tank and the suction nozzle.
- Other aspects of the invention will become apparent by consideration of the detailed description and accompanying drawings.
-
FIG. 1 is a perspective view of an extractor cleaning machine according to one embodiment of the invention. -
FIG. 2 is a perspective view of a portion of the extractor cleaning machine shown inFIG. 1 with a base removed. -
FIG. 3 is a perspective view of a portion of the extractor cleaning machine shown inFIG. 2 with a portion of a body removed. -
FIG. 4 is an exploded perspective view of a portion of the extractor cleaning machine shown inFIG. 1 including a tank tray and a recovery tank. -
FIG. 5 is an exploded perspective view of a portion of the extractor cleaning machine shown inFIG. 1 including an air duct and the tank tray. -
FIG. 6 is a perspective view of the air duct attached to the tank tray. - 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 an extractor cleaning machine 10 (hereinafter referred to simply as an “extractor”). In the illustrated embodiment, theextractor 10 is an upright extractor operable to clean a surface, such as, for example, a floor. In some embodiments, theextractor 10 may be adapted to clean a variety of surfaces, such as carpets, hardwood floors, tiles, or the like. Theextractor 10 distributes or sprays a cleaning fluid (e.g., water, detergent, or a mixture of water and detergent) onto the surface to clean the surface. Theextractor 10 then draws the cleaning fluid and dirt off of the surface, leaving the surface relatively clean. - The illustrated
extractor 10 includes a base 14 (other extractors such as non-upright-type extractors, might include a different type of base), abody 18 coupled to thebase 14 and thebody 18 including ahandle 20. Theextractor 10 further includes asuction source 22 supported by the body 18 (FIG. 3 ), atank tray 26, arecovery tank 30 supported by the tank tray 26 (FIG. 2 ), a distribution system (not shown), and asupply tank assembly 38 coupled to thebody 18. In the illustrated embodiment, thesuction source 22 is generally underneath the recovery tank 30 (FIG. 3 ). In other embodiments, thesuction source 22 may be supported by thebody 18 or may be positioned elsewhere on theextractor 10. In one embodiment, thesuction source 22 includes an electric motor and a fan. The motor rotates the fan to generate airflow. - Referring to
FIGS. 3 and 4 , thetank tray 26 is positioned between therecovery tank 30 and thebase 14 while in contact with and supporting therecovery tank 30. In the illustrated embodiment, thetank tray 26 is fixed to thebody 18 withfasteners 50 received inscrew embossments 46 cooperating with mating portions of the body. Alternatively, the tank tray may be attached by other fastening techniques. In addition, thetank tray 26 extends from thehandle 20 at a generally normal orientation to thehandle 20 in the illustrated embodiment. In other embodiments, thetank tray 26 may be coupled to thebase 14. - The
base 14 is movable along the surface to be cleaned. Two or more wheels 54 (only one of which is shown inFIG. 1 ) may be coupled to thebase 14 to facilitate movement of thebase 14 along the surface. In the illustrated embodiment, thewheels 54 are idle wheels. In other embodiments, thewheels 54 may be driven wheels. - In continued reference to
FIG. 1 , thebase 14 further includes asuction nozzle 42 and abrush assembly 62 adjacent alower surface 66 of thebase 14. Thesuction nozzle 42 draws fluid and dirt from the surface via thesuction source 22 into therecovery tank 30. Thebrush assembly 62 is adjacent thesuction nozzle 42 to scrub the surface. Thebrush assembly 62 also helps inhibit fluid from flowing beyond a periphery of thebase 14. In some embodiments, individual brushes of thebrush assembly 62 may be electrically or pneumatically rotated to agitate and scrub the surface. - The fluid distribution system is in fluid communication with the
supply tank assembly 38 to draw cleaning fluid from thesupply tank assembly 38 and distribute the fluid to the surface. In some embodiments, the fluid distribution system may include a pump that propels the cleaning fluid to the surface. - The illustrated
body 18 is pivotally coupled to and extends from thebase 14. Thebody 18 is pivotable or tiltable relative to thebase 14 from a generally vertical, or upright, storage position show inFIG. 1 to one or more non-vertical, or inclined, operating positions. Pivoting thebody 18 to an operating position facilitates moving thebase 14 along the surface. - As shown in
FIG. 1 , thebody 18 supports atrigger 70 and optionally amode switch 74. Thetrigger 70 is actuatable to spray cleaning fluid from thesupply tank assembly 38 through the distribution system onto the surface. Themode switch 74 adjusts the operating mode (i.e., wash, rinse, auto-rinse, etc.) of theextractor 10. The illustratedbody 18 also supports anauxiliary hose 78. Theauxiliary hose 78 is connectable to a variety of hand-held tools to clean smaller surfaces, such as, for example, steps. -
FIG. 4 illustrates thetank tray 26 and therecovery tank 30 separately detached from theextractor 10. Referring toFIGS. 4-6 , thetank tray 26 includes atop surface 82 that supports therecovery tank 30, abottom surface 86 opposite of thetop surface 82, and anair duct 146 coupled to thetank tray 26 to define a passageway that fluidly couples therecovery tank 130 and thesuction nozzle 42. In the illustrated embodiment shown inFIG. 1 , atube 96 connects thesuction nozzle 42 to theair duct 146. - As shown in
FIG. 4 , thetank tray 26 may include atank inlet aperture 94 in fluid communication with an outlet of theair duct 146 and an inlet of therecovery tank 30. Optionally, the tank tray may include an airpassage outlet aperture 90 positioned near thebody 18 when thetank tray 26 is attached to theextractor 10. Theapertures tank tray 26 and may be configured and located as desired for the application, such as in various geometries such as rectangular, circular, square, etc. Thetank inlet aperture 94 defines anaxis 122 and provides fluid flow to therecovery tank 30 while theair passage aperture 90 receives air flow exhausting from therecovery tank 30. Furthermore, fluid-sealinggaskets 126 are located on thetop surface 82 adjacent theapertures apertures - The illustrated
tank tray 26 further includes awall 106 that provides a perimeter around at least a portion of thetank tray 26. Thewall 106 enables therecovery tank 30 to be easily received on thetank tray 26 when therecovery tank 30 is removed and attached to thetray 26. In the illustrated embodiment, anauxiliary tool inlet 114 is located adjacent thewall 106 at the front of thetray 26 and defines an inlet axis 118 (FIG. 5 ). - In operation, the
suction source 22 generates an airflow that is drawn through thesuction nozzle 42. If cleaning fluid from thesupply tank assembly 38 was sprayed onto the surface, then thesuction source 22 also draws at least a portion of the cleaning fluid from the surface through thesuction nozzle 42. The airflow and cleaning solution is drawn through thenozzle 42, through thehose 96 and into theair duct 146 that is attached to thebottom surface 86 of therecovery tank 30. The airflow and cleaning solution then travel through theaperture 94 in the illustrated embodiment, and travel into therecovery tank 30. In therecovery tank 30 the dirty cleaning solution is separated from the airflow, and the airflow is discharged through theaperture 90 and eventually discharged to atmosphere. - With continued reference to
FIGS. 4 and 5 , in the illustrated embodiment, the extractor includes theauxiliary tool inlet 114, which provides a second suction opening, and anauxiliary cover 198. Theauxiliary cover 198 is rotatably coupled to theair duct 146. In a closed position, thecover 198 blocks theinlet 114 to substantially prevent an airflow from being drawn through theinlet 114 by thesuction source 22. In an open position, theauxiliary cover 198 exposes theinlet 114 to allow for theauxiliary hose 78 to be inserted into inlet 114 (FIG. 5 ). Theauxiliary hose 78 can then be used with various hand tools to clean other surfaces, such as upholstery, stairs, etc. When theauxiliary hose 78 is inserted intoinlet 114, theauxiliary hose 78 blocks asuction nozzle inlet 174 of theduct 146. Therefore, when theauxiliary hose 78 is received in theinlet 114 as shown inFIG. 5 , thesuction source 22 generally does not draw an airflow through thesuction nozzle 42. -
FIG. 5 illustrates one embodiment of theair duct 146, which will be described in detail below. The illustratedair duct 146 includes an opentop portion 150, aduct inlet 154 at a distal end, aduct outlet 158 at the other distal end, andwalls 136 connecting theduct inlet 154 and theduct outlet 158. Theair duct 146 further defines acavity 162 in communication with theduct inlet 154 and theduct outlet 158. Theair duct 146 includes a nonlinearcentral axis 166 that extends from theduct inlet 154 to theduct outlet 158 generally defining the longitudinal shape of theair duct 146. - The open
top portion 150 includes aduct groove 170 fully enclosing a perimeter of theair duct 146. Theduct groove 170 extends beyond thewalls 136 away from thecavity 162. In the illustrated embodiment, theduct groove 170 is configured as a continuous perimeter around theair duct 146 with a complementary profile to alip 130 on thetank tray 26. Thelip 130 of thetank tray 26 is inserted into theduct groove 170 of theair duct 146 to provide a mating area to rigidly and fluidly bond theair duct 146 to the tank tray 26 (FIG. 5 ). Theair duct 146 is attached to thetank tray 26 by an ultrasonic welding process. In other embodiments, theair duct 146 is attached to thetank tray 26 by other bonding processes (adhesives and other welding techniques). In other embodiments, theduct groove 170 may be configured as a non-continuous perimeter of theair duct 146. In other embodiments, theduct groove 170 may extend into thecavity 162. - The
duct inlet 154 includes thesuction nozzle inlet 174 in communication with thecavity 162. Thesuction nozzle inlet 174 extends away from the opentop portion 150 and defines an inlet axis 120 (FIG. 2 ). Thesuction nozzle inlet 174 includes a threadedportion 178 configured with internal threads (FIG. 6 ). The threadedportion 178 couples the hose 96 (FIG. 1 ) to theair duct 146. Alternatively, the threadedportion 178 may be configured with external threads, or may be an opening sufficient to create a positive seal with mating suction nozzle. In addition, theduct inlet 154 includesfingers 182 adjacent thesuction nozzle inlet 174 extending away from the opentop portion 150. Thefingers 182 includeprotrusions 186 generally extending laterally from thefingers 182. Theprotrusion 186 pivotally couple theauxiliary cover 198 to theair duct 146. -
FIG. 6 illustrates theair duct 146 attached to thetank tray 26 to define apassageway 190. Thepassageway 190 generally follows the nonlinearcentral axis 166 of theair duct 146 fluidly coupling theduct inlet 154 and theduct outlet 158. In the illustrated embodiment, theair duct 146 is coupled to thebottom surface 86 of thetank tray 26. In other embodiments, theair duct 146 may be coupled to thetop surface 82 of thetank tray 26 while preserving fluid communication with therecovery tank 30. - Various features and advantages of the invention are set forth in the following claims.
Claims (20)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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US14/208,835 US9138119B1 (en) | 2014-03-13 | 2014-03-13 | Air duct for an extractor cleaning machine |
CN201580024863.5A CN106455892B (en) | 2014-03-13 | 2015-01-30 | Air duct for suction cleaner |
AU2015230005A AU2015230005B2 (en) | 2014-03-13 | 2015-01-30 | Air duct for an extractor cleaning machine |
EP15703856.3A EP3116370B1 (en) | 2014-03-13 | 2015-01-30 | Air duct for an extractor cleaning machine |
PCT/US2015/013696 WO2015138054A1 (en) | 2014-03-13 | 2015-01-30 | Air duct for an extractor cleaning machine |
US14/849,721 US9661972B2 (en) | 2014-03-13 | 2015-09-10 | Air duct for an extractor cleaning machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US14/208,835 US9138119B1 (en) | 2014-03-13 | 2014-03-13 | Air duct for an extractor cleaning machine |
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US14/849,721 Continuation US9661972B2 (en) | 2014-03-13 | 2015-09-10 | Air duct for an extractor cleaning machine |
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US20150257621A1 true US20150257621A1 (en) | 2015-09-17 |
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US14/849,721 Active US9661972B2 (en) | 2014-03-13 | 2015-09-10 | Air duct for an extractor cleaning machine |
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EP (1) | EP3116370B1 (en) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108013830A (en) * | 2018-01-09 | 2018-05-11 | 苏州德易仕清洁科技有限公司 | A kind of strong vertical type dust collector of stability |
WO2022242851A1 (en) | 2021-05-19 | 2022-11-24 | Alfred Kärcher SE & Co. KG | Floor nozzle apparatus and suction-cleaning device |
US11523724B2 (en) * | 2017-08-11 | 2022-12-13 | Alfred Kärcher SE & Co. KG | Surface cleaning machine with cover device for dirty fluid reservoir device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9138119B1 (en) * | 2014-03-13 | 2015-09-22 | Techtronic Industries Co. Ltd. | Air duct for an extractor cleaning machine |
AU2016101525A4 (en) * | 2015-09-14 | 2016-09-29 | Bissell Inc. | Surface cleaning apparatus |
AU2016101847B4 (en) | 2015-10-28 | 2022-02-17 | Bissell Inc. | Surface cleaning apparatus |
WO2021087097A1 (en) * | 2019-10-31 | 2021-05-06 | Techtronic Cordless Gp | Brushroll for a floor cleaner |
USD1017156S1 (en) | 2022-05-09 | 2024-03-05 | Dupray Ventures Inc. | Cleaner |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5548866A (en) | 1994-01-14 | 1996-08-27 | The Hoover Company | Cleaning solution applicator |
US5406673A (en) * | 1994-01-14 | 1995-04-18 | The Hoover Company | Tank carry handle and securement latch |
US6167586B1 (en) * | 1995-11-06 | 2001-01-02 | Bissell Homecare, Inc. | Upright water extraction cleaning machine with improved tank structure |
US6167587B1 (en) * | 1997-07-09 | 2001-01-02 | Bissell Homecare, Inc. | Upright extraction cleaning machine |
US5784755A (en) * | 1996-01-18 | 1998-07-28 | White Consolidated Industries, Inc. | Wet extractor system |
US5983442A (en) * | 1997-06-06 | 1999-11-16 | The Hoover Company | Carpet extractor with automatic conversion |
US6536071B2 (en) | 2001-01-12 | 2003-03-25 | Royal Appliance Mfg. Co. | Tank mounting of carpet extractor |
US6513188B2 (en) * | 2001-01-12 | 2003-02-04 | Royal Appliance Mfg. Co. | Mixing pump for carpet extractor |
US7617563B2 (en) * | 2002-06-07 | 2009-11-17 | Healthy Gain Investments Limited | Liquid distribution system for a cleaning machine |
US7823250B2 (en) | 2003-08-26 | 2010-11-02 | Bissell Homecare, Inc. | Bare floor cleaner |
US7269879B2 (en) * | 2003-12-18 | 2007-09-18 | The Hoover Company | Solution distribution arrangement for a cleaning machine |
KR100608666B1 (en) * | 2004-05-31 | 2006-08-08 | 엘지전자 주식회사 | Cleaner for both dry and wet |
US7331082B2 (en) * | 2004-06-25 | 2008-02-19 | The Hoover Company | Tank arrangement for a cleaning apparatus |
KR100619754B1 (en) * | 2004-11-03 | 2006-09-06 | 엘지전자 주식회사 | Multi upright cleaner |
GB2449395B (en) * | 2005-02-17 | 2009-06-17 | Bissell Homecare Inc | Surface cleaning apparatus with recovery system |
CN101123909B (en) | 2005-02-22 | 2012-12-26 | 皇家器具有限公司 | High pressure extractor |
GB2458220B (en) | 2008-03-14 | 2011-09-21 | Bissell Homecare Inc | Upright extractor with vented spray tip assembly |
US8756752B2 (en) | 2010-09-01 | 2014-06-24 | Techtronic Floor Care Technology Limited | Tank tray for an extractor cleaning machine |
US8370991B2 (en) | 2010-09-01 | 2013-02-12 | Techtronic Floor Care Technology Limited | Supply tank assembly for an extractor cleaning machine |
AU2011295774B2 (en) * | 2010-09-01 | 2014-08-28 | Techtronic Floor Care Technology Limited | Recovery tank assembly for an extractor cleaning machine |
AU2012201055B2 (en) | 2011-03-01 | 2014-07-24 | Bissell Inc. | Lift off deep cleaner |
AU2013219229B2 (en) * | 2012-08-29 | 2017-07-13 | Bissell Inc. | Extraction cleaner with heat transfer |
US9138119B1 (en) * | 2014-03-13 | 2015-09-22 | Techtronic Industries Co. Ltd. | Air duct for an extractor cleaning machine |
-
2014
- 2014-03-13 US US14/208,835 patent/US9138119B1/en active Active
-
2015
- 2015-01-30 AU AU2015230005A patent/AU2015230005B2/en active Active
- 2015-01-30 CN CN201580024863.5A patent/CN106455892B/en active Active
- 2015-01-30 WO PCT/US2015/013696 patent/WO2015138054A1/en active Application Filing
- 2015-01-30 EP EP15703856.3A patent/EP3116370B1/en active Active
- 2015-09-10 US US14/849,721 patent/US9661972B2/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11523724B2 (en) * | 2017-08-11 | 2022-12-13 | Alfred Kärcher SE & Co. KG | Surface cleaning machine with cover device for dirty fluid reservoir device |
CN108013830A (en) * | 2018-01-09 | 2018-05-11 | 苏州德易仕清洁科技有限公司 | A kind of strong vertical type dust collector of stability |
WO2022242851A1 (en) | 2021-05-19 | 2022-11-24 | Alfred Kärcher SE & Co. KG | Floor nozzle apparatus and suction-cleaning device |
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AU2015230005B2 (en) | 2018-02-22 |
CN106455892B (en) | 2020-08-14 |
WO2015138054A1 (en) | 2015-09-17 |
AU2015230005A1 (en) | 2016-11-03 |
EP3116370A1 (en) | 2017-01-18 |
EP3116370B1 (en) | 2021-09-22 |
US9661972B2 (en) | 2017-05-30 |
CN106455892A (en) | 2017-02-22 |
US9138119B1 (en) | 2015-09-22 |
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