US20210085148A1 - Floor cleaning machine - Google Patents
Floor cleaning machine Download PDFInfo
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- US20210085148A1 US20210085148A1 US16/580,291 US201916580291A US2021085148A1 US 20210085148 A1 US20210085148 A1 US 20210085148A1 US 201916580291 A US201916580291 A US 201916580291A US 2021085148 A1 US2021085148 A1 US 2021085148A1
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- Prior art keywords
- mop
- cleaning machine
- assembly
- belt
- endless
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- 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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- 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
- A47L11/4047—Wound-up or endless cleaning belts
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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
- A47L11/26—Floor-scrubbing machines, hand-driven
-
- 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
- A47L11/4027—Filtering or separating contaminants or debris
-
- 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
- A47L11/4063—Driving means; Transmission means therefor
- A47L11/4069—Driving or transmission means for the cleaning tools
Definitions
- This disclosure relates to implementations of a floor cleaning machine.
- the present disclosure is directed to implementations of a floor cleaning machine that is adapted to mop floors.
- the commercial cleaning industry has two methods of mopping floors, the floor mop and the auto scrubber.
- the floor mop is used in conjunction with a bucket, and the auto scrubber can be a walk-behind, or a ride-on, floor cleaning device.
- a floor mop, and bucket allows a typical person to mop approximately 1500 sq. feet per hour. While an auto scrubber allows a person to mop approximately 15,000 to 20,000 sq. feet per hour.
- auto scrubbers have several disadvantages due to their size, weight, and cost. For example, commercial janitorial closets are often too small to house an auto scrubber. Also, due to their size and weight, a van, or trailer, having a ramp is required to transport most, if not all, auto scrubbers. Further, many companies find the cost of procurement and maintenance too high to justify the purchase of one.
- RMIs repetitive motion injuries
- RMIs are caused by repeatedly performing a physical task.
- Common RMIs include carpal tunnel syndrome, tendonitis, and bursitis, and these RMIs put worker productivity at risk.
- RMIs lead to an average of 18 lost workdays per injury.
- RMI the likelihood that they'll be reinjured is high.
- mopping Even still, approximately 70% of all hard surface floors are manually mopped.
- Implementations of a floor cleaning machine are provided.
- the floor cleaning machine is adapted to mop floors, thereby replacing the use of a conventional mop and mop bucket. In this way, labor cost is reduced and/or repetitive motion injuries (RMIs) minimized or eliminated.
- RMIs repetitive motion injuries
- the manually propelled floor cleaning machine is adapted to mop floors (e.g., tile, linoleum, concrete, and like floors) and comprises: a wheeled carriage assembly having a push handle; and a mop assembly that includes an endless mop belt, moistened with a cleaning solution, that can be driven through a cleaning circuit during which the underlying floor is mopped.
- the floor cleaning machine is configured so that rotation of at least one wheel of the wheeled carriage assembly drives the endless mop belt through the cleaning circuit.
- the mop assembly is configured to wring out the endless mop belt as it is driven through the cleaning circuit; and the floor cleaning machine further comprises a filtration and recirculation system configured to moisten the endless mop belt, collect and recirculate cleaning solution wrung from the endless mop belt by the mop assembly, and filter cleaning solution used to moisten the endless mop belt.
- a filtration and recirculation system configured to moisten the endless mop belt, collect and recirculate cleaning solution wrung from the endless mop belt by the mop assembly, and filter cleaning solution used to moisten the endless mop belt.
- the wheeled carriage assembly is configured to be height adjustable and thereby facilitate selectively placing the endless mop belt into contact with the underlying floor.
- FIG. 1 illustrates a top, left, rear isometric view of an exemplary implementation of a floor cleaning machine according to the principles of the present disclosure.
- FIG. 2 illustrates a left side view of the flooring cleaning machine shown in FIG. 1 .
- FIG. 3 illustrates a bottom, left, front isometric view of the floor cleaning machine shown in FIG. 1 .
- FIG. 4 illustrates an exploded view of the floor cleaning machine shown in FIGS. 1-3 ; wherein fasteners have been omitted for the purpose of clarity.
- FIG. 5 illustrates an isometric view of the wheeled carriage assembly, the mop head assembly, and portions of the filtration and recirculation system shown in FIG. 1 .
- FIG. 6 illustrates a left side view of the wheeled carriage assembly, the mop head assembly, and the portions of the filtration and recirculation system shown in FIG. 5 .
- FIG. 7 illustrates a right side view of the wheeled carriage assembly, the mop head assembly, portions of the filtration and recirculation system, and the drive belt assembly of the floor cleaning machine shown in FIG. 1 .
- FIG. 8 illustrates an exploded isometric view of the wheeled carriage assembly, the mop head assembly, and the recovery pan; wherein the top cover, height adjustment handle, pivots, and connecting rods have been omitted.
- FIG. 9 illustrates an isometric view of the mop assembly shown in FIG. 8 ; wherein the left frame portion of the mop assembly has been omitted.
- FIG. 10 illustrates a left side view of the mop assembly shown in FIG. 1 .
- FIG. 11 illustrates a side view of the floor cleaning machine shown in FIG. 1 ; wherein the push handle has been folded and the floor cleaning machine rested on its backside.
- FIGS. 1-3 illustrate an example floor cleaning machine 100 according to the principles of the present disclosure.
- the floor cleaning machine 100 is adapted to mop floors, thereby replacing the use of a conventional mop and mop bucket. In this way, labor cost is reduced and/or repetitive motion injuries (RMIs) minimized or eliminated.
- the floor cleaning machine 100 may be configured to rest on a backside thereof when not in use (see, e.g., FIG. 11 ). In this way, the floor cleaning machine 100 may be stored, the mop belt 132 allowed to dry, and maintenance performed (e.g., replacement of the mop belt).
- the floor cleaning machine 100 is adapted to mop floors (e.g., tile, linoleum, concrete, and like floors) and comprises: a wheeled carriage assembly 110 having a push handle 112 ; and a mop assembly 130 that includes an endless mop belt 132 , moistened with a cleaning solution, that can be driven through a circuit during which the underlying floor is mopped.
- the floor cleaning machine 100 may be configured so that rotation of the rear wheels 120 of the wheeled carriage assembly 110 drives the endless mop belt 132 through its cleaning circuit.
- the floor cleaning machine 100 further comprises a filtration and recirculation system that may include a cleaning solution tank 150 , one or more filter elements 152 , a battery powered pump 156 , a battery powered solenoid valve 160 , a sprinkler 158 , and a recovery pan 154 , or a suitable combination thereof.
- a filtration and recirculation system may include a cleaning solution tank 150 , one or more filter elements 152 , a battery powered pump 156 , a battery powered solenoid valve 160 , a sprinkler 158 , and a recovery pan 154 , or a suitable combination thereof.
- the endless mop belt 132 can be moistened with cleaning solution by the sprinkler 158 and cleaning solution wrung from the endless mop belt 132 can be recovered and filtered before reuse. This reduces the amount of time wasted going back-and-forth between a janitorial closet to replace the cleaning solution and saves water.
- the wheeled carriage assembly 110 comprises a frame 114 having a rear wheel assembly 116 and a pair of front casters 122 , and a push handle 112 that can be used to propel and steer the floor cleaning machine 100 .
- the rear wheel assembly 116 and the front casters 122 are capable of bearing and carrying the weight of the floor cleaning machine 100
- the front casters 122 are also capable of directionally swiveling.
- the rear wheel assembly 116 comprises an elongated cylindrically shaped axle 118 , a first wheel 120 a , and a second wheel 120 b .
- the axle 118 When secured to the frame 114 of the wheeled carriage assembly 110 , the axle 118 rotatably extends through a hole in each of a pair of height adjustable rear mounting brackets ( 164 a , 164 b ), the first wheel 120 a is connected adjacent a first end of the axle 118 and the second wheel 120 b is connected to a second end of the axle 118 .
- each rear mounting bracket 164 a , 164 b is configured to slide through a tubular coupling 178 (of the frame 114 ) that defines an opening which extends through the top surface of the frame 114 .
- the cylindrical shaft 169 of each rear mounting bracket 164 a , 164 b has a spring 179 positioned thereabout that is sandwiched between the rear mounting bracket 164 a , 164 b and the lower end of the tubular coupling 178 . In this way, the rear mounting brackets 164 to which the rear wheels 120 are mounted is kept under tension.
- each of the front casters 122 a , 122 b is configured to rotate and swivel.
- both casters 122 are secured to a height adjustable front strut 166 .
- the cylindrical shafts 167 of the front strut 166 are configured to slide through openings in the carriage bar 126 and the top surface of the frame 114 (see, e.g., FIGS. 3 and 5 ).
- the carriage bar 126 is supported by, and extends between, opposing portions of the wheeled carriage assembly's frame 114 .
- Each cylindrical shaft 167 of the front strut 166 has a spring 176 positioned thereabout that is sandwiched between the front strut 166 and the underside of the carriage bar 126 . In this way, the front strut 166 to which the casters 122 are mounted is kept under tension.
- the push handle 112 may be removably secured to the frame 114 of the wheeled carriage assembly 110 by suitable fasteners (e.g., nuts and bolts).
- suitable fasteners e.g., nuts and bolts.
- the push handle 112 of the wheeled carriage assembly 110 may be configured to fold over, thereby allowing the floor cleaning machine 100 to rest on a backside thereof (see, e.g., FIG. 11 ).
- the wheeled carriage assembly 110 is height adjustable and further comprises an adjustment handle 162 that is operably connected to the rear mounting brackets 164 a , 164 b and the front strut 166 . In this way, the height of the wheeled carriage assembly 110 relative to the floor can be adjusted, thereby allowing the user to selectively place the mop belt 132 (of the mop assembly 130 ) into contact with the underlying floor.
- the height adjustment handle 162 may be operably connected to the rear mounting brackets 164 and the front strut 166 by a series of pivots 168 and connecting rods 170 .
- the height adjustment handle 162 can move between, at least, two positions. In a first position, the wheeled chassis assembly 110 is lowered so that the endless mop belt 132 is positioned to make contact with the underlying floor (see, e.g., FIGS. 1-3 ). In a second position, the wheeled chassis assembly 110 is raised so that the endless mop belt 132 does not make contact with the underlying floor. In this way, the floor cleaning machine 100 can travel over carpet, and other surfaces, without the endless mop belt 132 coming into contact therewith.
- the wheeled carriage assembly 110 may also include a top cover 124 that is positioned and configured to cover the pivots 168 and connecting rods 170 that operably connect the height adjustment handle 162 to the rear mounting brackets 164 and the front strut 166 of the floor cleaning machine 100 .
- the mop assembly 130 is removably secured to the frame 114 of the wheeled carriage assembly 110 .
- the mop assembly 130 is configured to facilitate movement of the endless mop belt 132 through its cleaning circuit and/or to wring out the endless mop belt 132 as it moves through its cleaning circuit.
- the mop assembly 130 comprises a frame 131 , two squeegee rollers 134 , two drum rollers 136 , and the endless mop belt 132 .
- the mop assembly 130 is also configured to removably support and position the recovery pan 154 of the filtration and recirculation system so that it captures water wrung from the endless mop belt 132 as it passes between the two squeegee rollers 134 .
- the mop assembly frame 131 comprises a right frame portion 131 a , a left frame portion 131 b , and a joiner plate 131 c connected together by fasteners (e.g., screws).
- the mop assembly frame 131 is configured to support and position the two drum rollers 136 and the two squeegee rollers 134 to define the cleaning circuit and thereby guide the endless mop belt 132 across the underlying floor, under the sprinkler 158 of the filtration and recirculation system to be moistened, and between the squeegee rollers 134 to be wrung out prior to being guided across the underlying floor again (see, e.g., FIG. 10 ).
- each drum roller 136 a , 136 b is an elongate cylinder that spins on bearings.
- Each drum roller 136 a , 136 b is configured to engage with the interior side of the endless mop belt 132 and thereby drive it through the cleaning circuit during operation of the floor cleaning machine 100 .
- frictional engagement between the components may result from a rubber material placed on the exterior of each drum roller 136 a , 136 b .
- each drum roller 136 a , 136 b includes a spring-loaded release button 138 that extends through an opening in an arm of the left frame portion 131 b . In this way, when the release button 138 is depressed, one end of a drum roller 136 a , 136 b can be angled out of position and removed from between the two frame portions 131 a , 131 b.
- each squeegee roller 134 are rotatably suspending between the right frame portion 131 a and the left frame portion 131 b of the mop assembly 130 .
- the body of each squeegee roller 136 a , 136 b is an elongate cylinder.
- the two squeegee rollers 134 are positioned so that the endless mop belt 132 is wrung out as it passes therebetween.
- each end of the upper squeegee roller 134 a is suspending by a spring-loaded support 140 .
- the upper squeegee roller 134 a presses the endless mop belt 132 against the lower squeegee roller 134 b as it passes therethrough.
- the lower squeegee roller 134 b includes a spring-loaded release button 142 that extends through an opening in a depending extension of the left frame portion 131 b . In this way, when the release button 142 is depressed, one end of the lower squeegee roller 134 b can be angled out of position and removed from between the two frame portions 131 a , 131 b.
- the squeegee rollers 134 and the drummer rollers 136 of the mop assembly 130 are made of plastic, rubber, or metal, or a suitable combination thereof.
- the endless mop belt 132 is a single piece of material joined end to end.
- the endless mop belt 132 is preferably comprised of an absorbent micro fiber material, but could be made of other monofilament or multifilament strands formed into a continuous loop that would be suitable for mopping wood, tile, stone, etc.
- the endless mop belt 132 may have a first end and a second end that are joined together by hook-and-loop fasteners (not shown). In this way, without removing the drum rollers 136 from the mop assembly frame 131 , the endless mop belt 132 could be removed from the cleaning circuit of the floor cleaning machine 100 .
- the endless mop belt 132 is operably connected to the rear wheels 120 of the carriage assembly 110 by a drive belt assembly 180 .
- the drive belt assembly 180 comprises two cogs 182 and a drive belt 184 .
- the first cog 182 a is secured to the first end of the axle 118 , adjacent the first rear wheel 120 a ; and the second cog 182 b is secured to a first end of the upper squeegee roller 134 a .
- the drive belt 184 is configured to loop around and drivingly engage with both cogs 182 .
- rotation of the second cog 182 b and thereby the rotation of the upper squeegee roller 134 a , is linked to the rotation of the first cog 182 a , and thereby the rotation of the rear wheel assembly 116 .
- rotational movement of the upper squeegee roller 134 a as it presses the endless mop belt 132 against the lower squeegee roller 134 b , drives the endless mop belt 132 through the cleaning circuit (or loop) defined by the mop assembly 130 .
- the battery powered pump 156 of the filtration and recirculation system is configured to drive liquid through the system so that it moistens the endless mop belt 132 , filters the liquid wrung from the endless mop belt 132 by the squeegee rollers 134 , and recirculates the filtered liquid.
- the flow of liquid through the filtration and recirculation system is regulated by the battery powered solenoid valve 160 .
- the battery powered pump 156 pushes cleaning solution from the cleaning solution tank 150 into the sprinkler 158 so that it can be dispersed onto the endless mop belt 132 . Excess cleaning solution from the sprinkler 158 , and cleaning solution wrung from the endless mop belt 132 by the squeegee rollers 134 , is collected by the recovery pan 154 positioned thereunder.
- the battery powered pump 156 and thereby the cleaning solution tank 150 , is operably connected to the recovery pan 154 by a hose 155 .
- a first filter element 152 a may be positioned within the recovery pan 154 .
- a second filter element 152 b may be positioned within the cleaning solution tank 150 . In this way, cleaning solution is filtered before passing through the open solenoid valve 160 and being expelled by the sprinkler 158 onto the endless mop belt 132 .
- the battery powered pump 156 is turned ON/OFF using a provided switch.
- the battery powered solenoid valve 160 is opened/closed using a switch 159 , positioned on the push handle 122 , that is operably (i.e., conductively) connected thereto (see, e.g., FIG. 1 ).
- the cleaning solution tank 150 and the battery powered pump 156 of the filtration and recirculation system are mounted to the top cover 124 of the wheeled carriage assembly 110 .
- the battery powered pump 156 and/or the cleaning solution tank 150 are secured in position by one or more brackets and/or fasteners.
- the cleaning solution tank 150 is made of plastic, includes a removable lid 150 a , and is configured to contain 6.28 gallons of liquid. But it should be understood that the cleaning solution tank 150 could be configured (i.e., sized) to contain more, or less, liquid.
- the battery powered pump 156 may be a DC powered water pump. But one of ordinary skill in the art, having the benefit of the present disclosure, would be able to select an appropriate battery powered pump 156 for use as part of the filtration and recirculation system.
- each of the one or more filter elements 152 of the filtration and recirculation system is a baleen filter cartridge. But one of ordinary skill in the art, having the benefit of the present disclosure, would be able to select an appropriate filter element 152 for use as part of the filtration and recirculation system.
- the sprinkler 158 comprises a tube 158 a and an elongated cylindrical nozzle 158 b with holes therein.
- the tube 158 a extends from the cleaning solution tank 150 into the elongated cylindrical nozzle 158 b .
- the elongated cylindrical nozzle 158 b extends from the right frame portion 131 a of the mop assembly frame 131 and is positioned over the endless mop belt 132 .
- the recovery pan 154 is supported by a pair of support beams 144 extending from the right frame portion 131 a and may include a screen lid 172 with a paper filter element 174 positioned over the top opening 154 a thereof.
- the filter element 174 is replaceable and configured to filter dirt and debris from any cleaning solution passing therethrough.
- the cleaning solution may be water, a combination of water and a suitable floor cleaner, water and a suitable disinfectant, or any other aqueous cleaning solution suitable for cleaning wood, tile, stone, etc.
- the frame 114 , push handle 112 , and top cover 124 of the wheeled carriage assembly 110 and the mop assembly frame 131 are made of metal (e.g., an aluminum alloy).
- the other components of the floor cleaning machine 100 are made of plastic, rubber, or metal, or a suitable combination thereof.
- the following steps may be taken to remove the recovery pan 154 and the mop assembly 130 from the wheeled carriage assembly 110 .
- lift the recovery pan 154 up and pull it from the left side of the mop assembly 130 see, e.g., FIG. 8 ).
- slide the mop assembly 130 out from the left side of the wheeled carriage assembly 110 see, e.g., FIG. 8 ).
- the endless mop belt 132 may be removed from the mop assembly 130 and replaced.
- the following steps may be taken to remove and replace the endless mop belt 132 of the mop assembly 130 .
- press the release buttons 138 , 142 on the drum rollers 136 and the lower squeegee roller 134 b to disengage them from the left frame portion 131 b of the mop assembly 130 .
- remove the left frame portion 131 b from the mop assembly 130 see, e.g., FIG. 10 ).
- slide the endless mop belt 132 off of the drum rollers 136 and the lower squeegee roller 134 b slide a new endless mop belt 132 onto the drum rollers 136 and the lower squeegee roller 134 b from left to right.
- the endless mop belt 132 is 20′′ wide. It should be understood that the endless mop belt 132 could be more than, or less than, 20′′ wide without departing from the scope of the present invention.
- the floor cleaning machine 100 may include an electric motor configured to assist with propelling the rear wheels 120 thereof. In this way, the floor cleaning machine 100 is configured to be self-propelled.
Abstract
Implementations of a floor cleaning machine are provided. The floor cleaning machine is adapted to mop floors (e.g., tile, linoleum, concrete, and like floors) and comprises: a wheeled carriage assembly having a push handle; and a mop assembly that includes an endless mop belt, moistened with a cleaning solution, that can be driven through a cleaning circuit during which the underlying floor is mopped. The floor cleaning machine is configured so that rotation of at least one wheel of the wheeled carriage assembly drives the endless mop belt through the cleaning circuit. In some implementations, the mop assembly is configured to wring out the endless mop belt as it is driven through its cleaning circuit and the floor cleaning machine further comprises a filtration and recirculation system configured to moisten the endless mop belt and collect cleaning solution wrung from the endless mop belt by the mop assembly.
Description
- This disclosure relates to implementations of a floor cleaning machine. In particular, the present disclosure is directed to implementations of a floor cleaning machine that is adapted to mop floors.
- The commercial cleaning industry has two methods of mopping floors, the floor mop and the auto scrubber. The floor mop is used in conjunction with a bucket, and the auto scrubber can be a walk-behind, or a ride-on, floor cleaning device. A floor mop, and bucket, allows a typical person to mop approximately 1500 sq. feet per hour. While an auto scrubber allows a person to mop approximately 15,000 to 20,000 sq. feet per hour.
- However, auto scrubbers have several disadvantages due to their size, weight, and cost. For example, commercial janitorial closets are often too small to house an auto scrubber. Also, due to their size and weight, a van, or trailer, having a ramp is required to transport most, if not all, auto scrubbers. Further, many companies find the cost of procurement and maintenance too high to justify the purchase of one.
- Due to the disadvantages inherent to auto scrubbers, most companies rely on workers using floor mops to clean all hard surface floors. But the use of a floor mop and bucket has its own disadvantages. In particular, the use of a floor mop and bucket is labor intensive and can result in repetitive motion injuries (RMIs). RMIs are caused by repeatedly performing a physical task. Common RMIs include carpal tunnel syndrome, tendonitis, and bursitis, and these RMIs put worker productivity at risk. According to the Bureau of Labor Statistics, RMIs lead to an average of 18 lost workdays per injury. Also, once a worker suffers an RMI the likelihood that they'll be reinjured is high. One of the most common causes of RMIs in the commercial cleaning industry is mopping. Even still, approximately 70% of all hard surface floors are manually mopped.
- Accordingly, it can be seen that needs exist for the floor cleaning machine disclosed herein. It is to the provision of a floor cleaning machine configured to address these needs, and others, that the present invention is primarily directed.
- Implementations of a floor cleaning machine are provided. The floor cleaning machine is adapted to mop floors, thereby replacing the use of a conventional mop and mop bucket. In this way, labor cost is reduced and/or repetitive motion injuries (RMIs) minimized or eliminated.
- The manually propelled floor cleaning machine is adapted to mop floors (e.g., tile, linoleum, concrete, and like floors) and comprises: a wheeled carriage assembly having a push handle; and a mop assembly that includes an endless mop belt, moistened with a cleaning solution, that can be driven through a cleaning circuit during which the underlying floor is mopped. The floor cleaning machine is configured so that rotation of at least one wheel of the wheeled carriage assembly drives the endless mop belt through the cleaning circuit.
- In some implementations, the mop assembly is configured to wring out the endless mop belt as it is driven through the cleaning circuit; and the floor cleaning machine further comprises a filtration and recirculation system configured to moisten the endless mop belt, collect and recirculate cleaning solution wrung from the endless mop belt by the mop assembly, and filter cleaning solution used to moisten the endless mop belt.
- In some implementations, the wheeled carriage assembly is configured to be height adjustable and thereby facilitate selectively placing the endless mop belt into contact with the underlying floor.
-
FIG. 1 illustrates a top, left, rear isometric view of an exemplary implementation of a floor cleaning machine according to the principles of the present disclosure. -
FIG. 2 illustrates a left side view of the flooring cleaning machine shown inFIG. 1 . -
FIG. 3 illustrates a bottom, left, front isometric view of the floor cleaning machine shown inFIG. 1 . -
FIG. 4 illustrates an exploded view of the floor cleaning machine shown inFIGS. 1-3 ; wherein fasteners have been omitted for the purpose of clarity. -
FIG. 5 illustrates an isometric view of the wheeled carriage assembly, the mop head assembly, and portions of the filtration and recirculation system shown inFIG. 1 . -
FIG. 6 illustrates a left side view of the wheeled carriage assembly, the mop head assembly, and the portions of the filtration and recirculation system shown inFIG. 5 . -
FIG. 7 illustrates a right side view of the wheeled carriage assembly, the mop head assembly, portions of the filtration and recirculation system, and the drive belt assembly of the floor cleaning machine shown inFIG. 1 . -
FIG. 8 illustrates an exploded isometric view of the wheeled carriage assembly, the mop head assembly, and the recovery pan; wherein the top cover, height adjustment handle, pivots, and connecting rods have been omitted. -
FIG. 9 illustrates an isometric view of the mop assembly shown inFIG. 8 ; wherein the left frame portion of the mop assembly has been omitted. -
FIG. 10 illustrates a left side view of the mop assembly shown inFIG. 1 . -
FIG. 11 illustrates a side view of the floor cleaning machine shown inFIG. 1 ; wherein the push handle has been folded and the floor cleaning machine rested on its backside. - Like reference numerals refer to corresponding parts throughout the several views of the drawings.
-
FIGS. 1-3 illustrate an examplefloor cleaning machine 100 according to the principles of the present disclosure. Thefloor cleaning machine 100 is adapted to mop floors, thereby replacing the use of a conventional mop and mop bucket. In this way, labor cost is reduced and/or repetitive motion injuries (RMIs) minimized or eliminated. In some implementations, thefloor cleaning machine 100 may be configured to rest on a backside thereof when not in use (see, e.g.,FIG. 11 ). In this way, thefloor cleaning machine 100 may be stored, themop belt 132 allowed to dry, and maintenance performed (e.g., replacement of the mop belt). - Referring now to the drawings, the
floor cleaning machine 100 is adapted to mop floors (e.g., tile, linoleum, concrete, and like floors) and comprises: awheeled carriage assembly 110 having apush handle 112; and amop assembly 130 that includes anendless mop belt 132, moistened with a cleaning solution, that can be driven through a circuit during which the underlying floor is mopped. Thefloor cleaning machine 100 may be configured so that rotation of the rear wheels 120 of thewheeled carriage assembly 110 drives theendless mop belt 132 through its cleaning circuit. Thefloor cleaning machine 100 further comprises a filtration and recirculation system that may include acleaning solution tank 150, one or more filter elements 152, a battery poweredpump 156, a battery poweredsolenoid valve 160, asprinkler 158, and arecovery pan 154, or a suitable combination thereof. In this way, theendless mop belt 132 can be moistened with cleaning solution by thesprinkler 158 and cleaning solution wrung from theendless mop belt 132 can be recovered and filtered before reuse. This reduces the amount of time wasted going back-and-forth between a janitorial closet to replace the cleaning solution and saves water. - As shown in
FIGS. 1-3 and 7 , thewheeled carriage assembly 110 comprises aframe 114 having arear wheel assembly 116 and a pair of front casters 122, and apush handle 112 that can be used to propel and steer thefloor cleaning machine 100. Together, therear wheel assembly 116 and the front casters 122 are capable of bearing and carrying the weight of thefloor cleaning machine 100, the front casters 122 are also capable of directionally swiveling. - As shown in
FIGS. 1, 5, and 8 , in some implementations, therear wheel assembly 116 comprises an elongated cylindricallyshaped axle 118, afirst wheel 120 a, and asecond wheel 120 b. When secured to theframe 114 of thewheeled carriage assembly 110, theaxle 118 rotatably extends through a hole in each of a pair of height adjustable rear mounting brackets (164 a, 164 b), thefirst wheel 120 a is connected adjacent a first end of theaxle 118 and thesecond wheel 120 b is connected to a second end of theaxle 118. Thecylindrical shaft 169 of eachrear mounting bracket frame 114. Thecylindrical shaft 169 of eachrear mounting bracket spring 179 positioned thereabout that is sandwiched between therear mounting bracket tubular coupling 178. In this way, the rear mounting brackets 164 to which the rear wheels 120 are mounted is kept under tension. - As shown in
FIG. 3 , in some implementations, each of thefront casters frame 114 of thewheeled carriage assembly 110, both casters 122 are secured to a height adjustablefront strut 166. Thecylindrical shafts 167 of thefront strut 166 are configured to slide through openings in thecarriage bar 126 and the top surface of the frame 114 (see, e.g.,FIGS. 3 and 5 ). Thecarriage bar 126 is supported by, and extends between, opposing portions of the wheeled carriage assembly'sframe 114. Eachcylindrical shaft 167 of thefront strut 166 has aspring 176 positioned thereabout that is sandwiched between thefront strut 166 and the underside of thecarriage bar 126. In this way, thefront strut 166 to which the casters 122 are mounted is kept under tension. - In some implementations, the push handle 112 may be removably secured to the
frame 114 of thewheeled carriage assembly 110 by suitable fasteners (e.g., nuts and bolts). In some implementations, the push handle 112 of thewheeled carriage assembly 110 may be configured to fold over, thereby allowing thefloor cleaning machine 100 to rest on a backside thereof (see, e.g.,FIG. 11 ). - In some implementations, the
wheeled carriage assembly 110 is height adjustable and further comprises anadjustment handle 162 that is operably connected to therear mounting brackets front strut 166. In this way, the height of thewheeled carriage assembly 110 relative to the floor can be adjusted, thereby allowing the user to selectively place the mop belt 132 (of the mop assembly 130) into contact with the underlying floor. - As shown in
FIG. 5 , the height adjustment handle 162 may be operably connected to the rear mounting brackets 164 and thefront strut 166 by a series ofpivots 168 and connectingrods 170. In some implementations, the height adjustment handle 162 can move between, at least, two positions. In a first position, thewheeled chassis assembly 110 is lowered so that theendless mop belt 132 is positioned to make contact with the underlying floor (see, e.g.,FIGS. 1-3 ). In a second position, thewheeled chassis assembly 110 is raised so that theendless mop belt 132 does not make contact with the underlying floor. In this way, thefloor cleaning machine 100 can travel over carpet, and other surfaces, without theendless mop belt 132 coming into contact therewith. - As shown in
FIGS. 1 and 2 , thewheeled carriage assembly 110 may also include atop cover 124 that is positioned and configured to cover thepivots 168 and connectingrods 170 that operably connect the height adjustment handle 162 to the rear mounting brackets 164 and thefront strut 166 of thefloor cleaning machine 100. - As shown in
FIG. 8 , themop assembly 130 is removably secured to theframe 114 of thewheeled carriage assembly 110. Themop assembly 130 is configured to facilitate movement of theendless mop belt 132 through its cleaning circuit and/or to wring out theendless mop belt 132 as it moves through its cleaning circuit. In some implementations, themop assembly 130 comprises aframe 131, two squeegee rollers 134, two drum rollers 136, and theendless mop belt 132. Themop assembly 130 is also configured to removably support and position therecovery pan 154 of the filtration and recirculation system so that it captures water wrung from theendless mop belt 132 as it passes between the two squeegee rollers 134. - As shown in
FIGS. 8-10 , in some implementations, themop assembly frame 131 comprises aright frame portion 131 a, aleft frame portion 131 b, and ajoiner plate 131 c connected together by fasteners (e.g., screws). Themop assembly frame 131 is configured to support and position the two drum rollers 136 and the two squeegee rollers 134 to define the cleaning circuit and thereby guide theendless mop belt 132 across the underlying floor, under thesprinkler 158 of the filtration and recirculation system to be moistened, and between the squeegee rollers 134 to be wrung out prior to being guided across the underlying floor again (see, e.g.,FIG. 10 ). - As shown in
FIGS. 6-8 , the two drum rollers 136 are rotatably suspending between theright frame portion 131 a and theleft frame portion 131 b of themop assembly 130. The body of eachdrum roller drum roller endless mop belt 132 and thereby drive it through the cleaning circuit during operation of thefloor cleaning machine 100. For example, in some implementations, frictional engagement between the components (i.e., themop belt 132 and the drum rollers 136) may result from a rubber material placed on the exterior of eachdrum roller drum roller release button 138 that extends through an opening in an arm of theleft frame portion 131 b. In this way, when therelease button 138 is depressed, one end of adrum roller frame portions - As shown in
FIGS. 6-8 , the two squeegee rollers 134 are rotatably suspending between theright frame portion 131 a and theleft frame portion 131 b of themop assembly 130. The body of eachsqueegee roller endless mop belt 132 is wrung out as it passes therebetween. In some implementations, each end of theupper squeegee roller 134 a is suspending by a spring-loadedsupport 140. In this way, theupper squeegee roller 134 a presses theendless mop belt 132 against thelower squeegee roller 134 b as it passes therethrough. In some implementations, thelower squeegee roller 134 b includes a spring-loadedrelease button 142 that extends through an opening in a depending extension of theleft frame portion 131 b. In this way, when therelease button 142 is depressed, one end of thelower squeegee roller 134 b can be angled out of position and removed from between the twoframe portions - The squeegee rollers 134 and the drummer rollers 136 of the
mop assembly 130 are made of plastic, rubber, or metal, or a suitable combination thereof. - As shown throughout the drawings, the
endless mop belt 132 is a single piece of material joined end to end. Theendless mop belt 132 is preferably comprised of an absorbent micro fiber material, but could be made of other monofilament or multifilament strands formed into a continuous loop that would be suitable for mopping wood, tile, stone, etc. In some implementations, theendless mop belt 132 may have a first end and a second end that are joined together by hook-and-loop fasteners (not shown). In this way, without removing the drum rollers 136 from themop assembly frame 131, theendless mop belt 132 could be removed from the cleaning circuit of thefloor cleaning machine 100. - As shown in
FIG. 7 , in some implementations, theendless mop belt 132 is operably connected to the rear wheels 120 of thecarriage assembly 110 by adrive belt assembly 180. In this way, rotation of the rear wheels 120 can be used to drive theendless mop belt 132 through the cleaning circuit. In some implementations, thedrive belt assembly 180 comprises two cogs 182 and adrive belt 184. Thefirst cog 182 a is secured to the first end of theaxle 118, adjacent the firstrear wheel 120 a; and thesecond cog 182 b is secured to a first end of theupper squeegee roller 134 a. Thedrive belt 184 is configured to loop around and drivingly engage with both cogs 182. In this way, rotation of thesecond cog 182 b, and thereby the rotation of theupper squeegee roller 134 a, is linked to the rotation of thefirst cog 182 a, and thereby the rotation of therear wheel assembly 116. It should be noted that rotational movement of theupper squeegee roller 134 a, as it presses theendless mop belt 132 against thelower squeegee roller 134 b, drives theendless mop belt 132 through the cleaning circuit (or loop) defined by themop assembly 130. - As shown in
FIG. 2 , when thefloor cleaning machine 100 is being pushed forward (i.e., to the left as shown in the referenced illustration), theendless mop belt 132 moves across the underlying floor in the direction of the arrow. - As shown in
FIGS. 1-3 , the battery poweredpump 156 of the filtration and recirculation system is configured to drive liquid through the system so that it moistens theendless mop belt 132, filters the liquid wrung from theendless mop belt 132 by the squeegee rollers 134, and recirculates the filtered liquid. The flow of liquid through the filtration and recirculation system is regulated by the battery poweredsolenoid valve 160. - In some implementations, while the
solenoid valve 160 is open, the battery poweredpump 156 pushes cleaning solution from thecleaning solution tank 150 into thesprinkler 158 so that it can be dispersed onto theendless mop belt 132. Excess cleaning solution from thesprinkler 158, and cleaning solution wrung from theendless mop belt 132 by the squeegee rollers 134, is collected by therecovery pan 154 positioned thereunder. The battery poweredpump 156, and thereby thecleaning solution tank 150, is operably connected to therecovery pan 154 by ahose 155. In some implementations, afirst filter element 152 a may be positioned within therecovery pan 154. In this way, cleaning solution is filtered before being withdrawn from therecovery pan 154 by the battery poweredpump 156. In some implementations, asecond filter element 152 b may be positioned within thecleaning solution tank 150. In this way, cleaning solution is filtered before passing through theopen solenoid valve 160 and being expelled by thesprinkler 158 onto theendless mop belt 132. In some implementations, the battery poweredpump 156 is turned ON/OFF using a provided switch. In some implementations, the battery poweredsolenoid valve 160 is opened/closed using aswitch 159, positioned on the push handle 122, that is operably (i.e., conductively) connected thereto (see, e.g.,FIG. 1 ). - As shown in
FIGS. 1-3 , in some implementations, thecleaning solution tank 150 and the battery poweredpump 156 of the filtration and recirculation system are mounted to thetop cover 124 of thewheeled carriage assembly 110. In some implementations, the battery poweredpump 156 and/or thecleaning solution tank 150 are secured in position by one or more brackets and/or fasteners. Thecleaning solution tank 150 is made of plastic, includes aremovable lid 150 a, and is configured to contain 6.28 gallons of liquid. But it should be understood that thecleaning solution tank 150 could be configured (i.e., sized) to contain more, or less, liquid. In some implementations, the battery poweredpump 156 may be a DC powered water pump. But one of ordinary skill in the art, having the benefit of the present disclosure, would be able to select an appropriate battery poweredpump 156 for use as part of the filtration and recirculation system. - One of ordinary skill in the art, having the benefit of the present disclosure, would be able to select a suitable DC
powered solenoid valve 160 for use as part of the filtration and recirculation system. - In some implementations, each of the one or more filter elements 152 of the filtration and recirculation system is a baleen filter cartridge. But one of ordinary skill in the art, having the benefit of the present disclosure, would be able to select an appropriate filter element 152 for use as part of the filtration and recirculation system.
- As shown in
FIG. 4 , in some implementations, thesprinkler 158 comprises atube 158 a and an elongatedcylindrical nozzle 158 b with holes therein. Thetube 158 a extends from thecleaning solution tank 150 into the elongatedcylindrical nozzle 158 b. The elongatedcylindrical nozzle 158 b extends from theright frame portion 131 a of themop assembly frame 131 and is positioned over theendless mop belt 132. - As shown in
FIGS. 4 and 8 , in some implementations, therecovery pan 154 is supported by a pair ofsupport beams 144 extending from theright frame portion 131 a and may include ascreen lid 172 with apaper filter element 174 positioned over thetop opening 154 a thereof. Thefilter element 174 is replaceable and configured to filter dirt and debris from any cleaning solution passing therethrough. - In some implementations, the cleaning solution may be water, a combination of water and a suitable floor cleaner, water and a suitable disinfectant, or any other aqueous cleaning solution suitable for cleaning wood, tile, stone, etc.
- The
frame 114, push handle 112, andtop cover 124 of thewheeled carriage assembly 110 and themop assembly frame 131 are made of metal (e.g., an aluminum alloy). The other components of thefloor cleaning machine 100 are made of plastic, rubber, or metal, or a suitable combination thereof. - In some implementations, the following steps may be taken to remove the
recovery pan 154 and themop assembly 130 from thewheeled carriage assembly 110. Initially, turn the battery poweredpump 156 OFF and disconnect thehose 155 therefrom. Then, remove thedrive belt 184 from engagement with thesecond cog 182 b. Next, lift therecovery pan 154 up and pull it from the left side of the mop assembly 130 (see, e.g.,FIG. 8 ). Then, slide themop assembly 130 out from the left side of the wheeled carriage assembly 110 (see, e.g.,FIG. 8 ). Now theendless mop belt 132 may be removed from themop assembly 130 and replaced. - In some implementations, the following steps may be taken to remove and replace the
endless mop belt 132 of themop assembly 130. Initially, press therelease buttons lower squeegee roller 134 b to disengage them from theleft frame portion 131 b of themop assembly 130. Then, remove theleft frame portion 131 b from the mop assembly 130 (see, e.g.,FIG. 10 ). Next, slide theendless mop belt 132 off of the drum rollers 136 and thelower squeegee roller 134 b. Then, slide a newendless mop belt 132 onto the drum rollers 136 and thelower squeegee roller 134 b from left to right. Next, reattach theleft frame portion 131 b to themop assembly 130. Then, position the drum rollers 136 and thelower squeegee roller 134 b so that therelease buttons left frame portion 131 b of themop assembly 130. - As shown throughout the illustrations, the
endless mop belt 132 is 20″ wide. It should be understood that theendless mop belt 132 could be more than, or less than, 20″ wide without departing from the scope of the present invention. - Although not shown, in some implementations, the
floor cleaning machine 100 may include an electric motor configured to assist with propelling the rear wheels 120 thereof. In this way, thefloor cleaning machine 100 is configured to be self-propelled. - Reference throughout this specification to “an embodiment” or “implementation” or words of similar import means that a particular described feature, structure, or characteristic is included in at least one embodiment of the present invention. Thus, the phrase “in some implementations” or a phrase of similar import in various places throughout this specification does not necessarily refer to the same embodiment.
- Many modifications and other embodiments of the inventions set forth herein will come to mind to one skilled in the art to which these inventions pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings.
- The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided for a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that embodiments of the invention can be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations may not be shown or described in detail.
- While operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results.
Claims (20)
1. A manually propelled floor cleaning machine adapted to mop floors, the floor cleaning machine comprising:
a wheeled carriage assembly having a push handle; and
a mop assembly that includes an endless mop belt, moistened with a cleaning solution, that can be driven through a cleaning circuit during which the underlying floor is mopped;
wherein the floor cleaning machine is configured so that rotation of at least one wheel of the wheeled carriage assembly drives the endless mop belt through the cleaning circuit.
2. The floor cleaning machine of claim 1 , wherein the endless mop belt is a comprised of an absorbent micro fiber material that has been formed into a continuous loop.
3. The floor cleaning machine of claim 1 , wherein the push handle of the wheeled carriage assembly is configured to fold over, thereby allowing the floor cleaning machine to rest on a backside thereof.
4. The floor cleaning machine of claim 1 , wherein the wheeled carriage assembly comprises a rear wheel assembly and a pair of front casters, the rear wheel assembly and the front casters are capable of bearing and carrying the weight of the floor cleaning machine, the front casters are also capable of directionally swiveling.
5. The floor cleaning machine of claim 1 , further comprising a drive belt assembly configured to operably connect the at least one wheel of the wheeled carriage assembly to the endless mop belt.
6. A manually propelled floor cleaning machine adapted to mop floors, the floor cleaning machine comprising:
a wheeled carriage assembly having a push handle;
a mop assembly that includes an endless mop belt, moistened with a cleaning solution, that can be driven through a cleaning circuit during which the underlying floor is mopped, the mop assembly is configured to wring out the endless mop belt as it is driven through the cleaning circuit; and
a filtration and recirculation system configured to moisten the endless mop belt, collect and recirculate cleaning solution wrung from the endless mop belt by the mop assembly, and filter cleaning solution used to moisten the endless mop belt;
wherein the floor cleaning machine is configured so that rotation of at least one wheel of the wheeled carriage assembly drives the endless mop belt through the cleaning circuit.
7. The floor cleaning machine of claim 6 , wherein the endless mop belt is a comprised of an absorbent micro fiber material that has been formed into a continuous loop.
8. The floor cleaning machine of claim 6 , wherein the push handle of the wheeled carriage assembly is configured to fold over, thereby allowing the floor cleaning machine to rest on a backside thereof.
9. The floor cleaning machine of claim 6 , wherein the mop assembly further comprises a pair of squeegee rollers configured to wring out the endless mop belt; wherein the filtration and recirculation system comprises a recovery pan positioned to catch liquid wrung from the endless mop belt by the squeegee rollers.
10. The floor cleaning machine of claim 6 , wherein the filtration and recirculation system includes a sprinkler that is suspended over the endless mop belt, the sprinkler is configured to moisten the endless mop belt with cleaning solution.
11. The floor cleaning machine of claim 6 , wherein the filtration and recirculation system includes: a cleaning solution tank configured to contain cleaning solution; one or more filter elements configured to filter cleaning solution circulating through the filtration and recirculation system; a battery powered pump configured to drive liquid cleaning solution through the filtration and recirculation system; a sprinkler positioned and configured to moisten the endless mop belt with cleaning solution; and a recovery pan positioned to catch liquid wrung from the endless mop belt by the mop assembly.
12. The floor cleaning machine of claim 6 , wherein the wheeled carriage assembly comprises a rear wheel assembly and a pair of front casters, the rear wheel assembly and the front casters are capable of bearing and carrying the weight of the floor cleaning machine, the front casters are also capable of directionally swiveling.
13. The floor cleaning machine of claim 6 , further comprising a drive belt assembly configured to operably connect the at least one wheel of the wheeled carriage assembly to the endless mop belt.
14. A manually propelled floor cleaning machine adapted to mop floors, the floor cleaning machine comprising:
a wheeled carriage assembly having a push handle;
a mop assembly that includes an endless mop belt, moistened with a cleaning solution, that can be driven through a cleaning circuit during which the underlying floor is mopped, the mop assembly is configured to wring out the endless mop belt as it is driven through the cleaning circuit; and
a filtration and recirculation system configured to moisten the endless mop belt, collect and recirculate cleaning solution wrung from the endless mop belt by the mop assembly, and filter cleaning solution used to moisten the endless mop belt;
wherein the floor cleaning machine is configured so that rotation of at least one wheel of the wheeled carriage assembly drives the endless mop belt through the cleaning circuit;
wherein the wheeled carriage assembly is configured to be height adjustable and thereby facilitate selectively placing the endless mop belt into contact with the underlying floor.
15. The floor cleaning machine of claim 14 , wherein the endless mop belt is a comprised of an absorbent micro fiber material that has been formed into a continuous loop.
16. The floor cleaning machine of claim 14 , wherein the push handle of the wheeled carriage assembly is configured to fold over, thereby allowing the floor cleaning machine to rest on a backside thereof.
17. The floor cleaning machine of claim 14 , wherein the mop assembly further comprises a pair of squeegee rollers configured to wring out the endless mop belt; wherein the filtration and recirculation system comprises a recovery pan positioned to catch liquid wrung from the endless mop belt by the squeegee rollers.
18. The floor cleaning machine of claim 14 , wherein the filtration and recirculation system includes a sprinkler that is suspended over the endless mop belt, the sprinkler is configured to moisten the endless mop belt with cleaning solution.
19. The floor cleaning machine of claim 14 , wherein the wheeled carriage assembly comprises a rear wheel assembly and a pair of front casters, the rear wheel assembly and the front casters are capable of bearing and carrying the weight of the floor cleaning machine, the front casters are also capable of directionally swiveling.
20. The floor cleaning machine of claim 14 , further comprising a drive belt assembly configured to operably connect the at least one wheel of the wheeled carriage assembly to the endless mop belt.
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US16/580,291 US20210085148A1 (en) | 2019-09-24 | 2019-09-24 | Floor cleaning machine |
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US16/580,291 US20210085148A1 (en) | 2019-09-24 | 2019-09-24 | Floor cleaning machine |
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US20210085148A1 true US20210085148A1 (en) | 2021-03-25 |
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US16/580,291 Abandoned US20210085148A1 (en) | 2019-09-24 | 2019-09-24 | Floor cleaning machine |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220018598A1 (en) * | 2020-07-14 | 2022-01-20 | Clevertivity LLC | Liquid removal device with absorber drum and related methods |
CN114569014A (en) * | 2022-03-11 | 2022-06-03 | 吴咏梅 | Indoor dust removal sprinkler of green building construction |
US20220322909A1 (en) * | 2021-03-30 | 2022-10-13 | Makita Corporation | Cleaning machine |
-
2019
- 2019-09-24 US US16/580,291 patent/US20210085148A1/en not_active Abandoned
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220018598A1 (en) * | 2020-07-14 | 2022-01-20 | Clevertivity LLC | Liquid removal device with absorber drum and related methods |
US11609044B2 (en) * | 2020-07-14 | 2023-03-21 | Clevertivity LLC | Liquid removal device with absorber drum and related methods |
US20220322909A1 (en) * | 2021-03-30 | 2022-10-13 | Makita Corporation | Cleaning machine |
US11759082B2 (en) * | 2021-03-30 | 2023-09-19 | Makita Corporation | Cleaning machine |
CN114569014A (en) * | 2022-03-11 | 2022-06-03 | 吴咏梅 | Indoor dust removal sprinkler of green building construction |
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