US20050011028A1 - Motorised floor sweeper - Google Patents

Motorised floor sweeper Download PDF

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Publication number
US20050011028A1
US20050011028A1 US10/748,929 US74892903A US2005011028A1 US 20050011028 A1 US20050011028 A1 US 20050011028A1 US 74892903 A US74892903 A US 74892903A US 2005011028 A1 US2005011028 A1 US 2005011028A1
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US
United States
Prior art keywords
brushes
brush
floor sweeper
chassis
floor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/748,929
Inventor
Hung Chow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yasuda Technology Holdings Ltd
Original Assignee
Yasuda Technology Holdings Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yasuda Technology Holdings Ltd filed Critical Yasuda Technology Holdings Ltd
Assigned to YASUDA TECHNOLOGY (HOLDINGS) LIMITED reassignment YASUDA TECHNOLOGY (HOLDINGS) LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHOW, HUNG
Publication of US20050011028A1 publication Critical patent/US20050011028A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
    • A47L11/4058—Movement of the tools or the like perpendicular to the cleaning surface for adjusting the height of the tool
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24—Floor-sweeping machines, motor-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
    • A47L11/32—Carpet-sweepers
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools

Definitions

  • the present invention relates to floor sweepers. More particularly, although not exclusively, the invention relates to a motorised floor sweeper having counter-rotating driven brushes.
  • Non-powered carpet sweepers are known. These comprise floor-engaging wheels or rollers connected by a transmission to a rotating brush. In order to rotate the brush at an effective speed, significant effort is required to push the carpet sweeper across the floor surface.
  • Mains powered vacuum cleaners having large-capacity dust bags and air filters are also known. These are useful in cleaning large areas of carpet for example, but are heavy and limited somewhat by the need to extend a power cord to a wall socket.
  • Battery-operated handheld vacuum cleaners that draw air through a nozzle are also known. These are useful for cleaning up smaller areas, but are impractical for cleaning substantial flat areas.
  • a motorised floor sweeper comprising:
  • the floor sweeper comprising a pair of said electric motors, one of which drives one of the brushes and the other of which drives the other brush.
  • the electric motors are positioned between the rollers.
  • one of the motors is situated adjacent to one end of the brushes and the other motor is situated adjacent to the other end of the brushes.
  • the floor sweeper further comprises a battery compartment in between the brushes.
  • the floor sweeper further comprises a pair of drive belts, one transmitting rotational output of one of the motors to one of the brushes and the other of which transmits rotational output of the other motor to the other brush.
  • the floor sweeper further comprises floor-engaging rollers attached to the chassis and maintaining each brush at a defined spacing above a flat swept surface in use.
  • rollers are located inboard of the brushes.
  • the floor sweeper further comprises a pair of buffer strip upon the chassis outboard of the brushes defining a minimum spacing between the brushes and a flat swept surface in use.
  • the floor sweeper further comprises a pair of said dust compartments—one adjacent to each brush and a deflection surface adjacent to each brush and positioned proximate a respective said dust compartment to deflect dust swept up by the brush into that dust compartment.
  • the deflection surface has an edge strip defining a minimum spacing between the brushes and a flat swept surface in use.
  • each brush has a plurality of bristles extending radially therefrom and wherein the bristles have tips that reach a flat swept surface if one of the buffer strips engages the flat swept surface in use.
  • each brush comprises a radially extending strip extending radially as far as the tips of the bristles.
  • the carpet sweeper further comprises an attachment for an elongate handle attached to the chassis by a multi-pivot joint.
  • FIG. 1 is a schematic cross-sectional end elevation of a motorised floor sweeper
  • FIG. 2 is a schematic cross-sectional top view of the floor sweeper of FIG. 1 ,
  • FIG. 3 is a schematic plan of the floor sweeper of Figures is 1 and 2 ,
  • FIG. 4 is a schematic elevation of the floor sweeper of FIGS. 1 to 3 .
  • FIG. 5 is a schematic plan of the floor sweeper of FIGS. 1 to 4 .
  • a motorised floor sweeper 10 comprising a chassis 11 having a handle attachment 19 connected thereto by a multi-pivot joint 20 to be described later.
  • the chassis 11 is typically a plastics moulding and has a pair of brushes 21 rotatably mounted therein.
  • Each brush 21 comprises a central longitudinal horizontal shaft 12 extending in the transverse direction of the chassis and parallel to one another.
  • a plurality of bristles 22 extend radially from the shaft 12 .
  • Formed integrally with the shaft 12 is a straight longitudinal strip 18 having a remote edge at the same or similar radial offset to the shaft longitudinal axis as the tip of each bristle 22 . As shown in FIG. 2 , the bristles extend in a spiral formation about the shaft 12 .
  • rollers 14 Supported rotatably at the bottom of the chassis are four rollers 14 .
  • the tips of the bristles 22 are spaced away from the floor surface. If the floor sweeper is being used on carpet however, the rollers 14 will sink into the carpet somewhat thereby allowing the tips of the bristles to contact the top of the carpet pile or at least approach the carpet pile.
  • There is a buffer strip 15 at the forward and trailing edges of the chassis 11 which would press against the floor surface or carpet should the chassis tilt about one of the rollers 14 in use.
  • the rollers 14 and tips of the bristles 22 extend the same distance downwardly from the chassis 11 this enables the bristle tips to just touch on a hard floor surface.
  • the bottom extremity of the buffer strip 15 is approximately 8.5 mm higher than the bottom extremity of each roller 14 . This enables the sweeper to be used on carpet without jamming of the brushes 21 .
  • each brush 21 Located inboard of and adjacent to each brush 21 is a deflection plate 16 having an edge strip 17 approximately 5.5 mm higher than the bottom extremity of each roller 14 . Above each deflection plate 16 there is an opening 24 through which dust swept up by the respective brush 21 enters a dust compartment 23 . It should be noted in this regard that the right-hand brush in FIG. 1 rotates in a clockwise sense, whereas the left-hand brush rotates in an anticlockwise sense. There is a lid 25 covering each dust compartment 23 which can be lifted prior to inversion of the chassis for dust-removal purposes.
  • the battery powers a pair of motors 13 electrically connected in parallel and each having an output pulley 27 about which a drive belt 28 extends.
  • Each drive belt 28 extends about a roller pulley 29 at the end of each roller.
  • the motors 13 flank the batteries 26 and the respective pulleys and drive belts are at opposite lateral ends of the chassis 11 .
  • the handle attachment 19 has a hollow interior to receive the end of a wooden broom handle for example. At the bottom end of the attachment there is a recess 31 into which a pivot pin 32 of a pivot joint 33 is received.
  • the pivot joint 33 can pivot about axis A ( FIG. 1 ) back and forth in a plane of intended operational movement of the floor sweeper 10 .
  • the pivot joint 33 is designed to also enable pivotal movement of the handle attachment 19 about axis B ( FIG. 4 ) so that the handle attachment can pivot in a lateral direction.

Landscapes

  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Brushes (AREA)

Abstract

A motorised floor sweeper includes a chassis, a pair of elongate brushes mounted to the chassis in parallel relationship with one another, two electric motors mounted to the chassis and causing counter-rotation of one of the brushes with respect to the other brush, and a dust compartment adjacent to at least one of the brushes for receiving dust swept up by the brush.

Description

    BACKGROUND OF THE INVENTION
  • The present invention relates to floor sweepers. More particularly, although not exclusively, the invention relates to a motorised floor sweeper having counter-rotating driven brushes.
  • Non-powered carpet sweepers are known. These comprise floor-engaging wheels or rollers connected by a transmission to a rotating brush. In order to rotate the brush at an effective speed, significant effort is required to push the carpet sweeper across the floor surface.
  • Mains powered vacuum cleaners having large-capacity dust bags and air filters are also known. These are useful in cleaning large areas of carpet for example, but are heavy and limited somewhat by the need to extend a power cord to a wall socket.
  • Battery-operated handheld vacuum cleaners that draw air through a nozzle are also known. These are useful for cleaning up smaller areas, but are impractical for cleaning substantial flat areas.
    • OBJECT OF THE INVENTION
  • It is an object of the present invention to overcome or substantially ameliorate at least one of the above disadvantages and/or more generally to provide an improved floor sweeper.
    • DISCLOSURE OF THE INVENTION
  • There is disclosed herein a motorised floor sweeper comprising:
      • a chassis,
      • a pair of elongate brushes mounted to the chassis in parallel relationship with one another,
      • an electric motor mounted to the chassis and causing counter-rotation of one of the brushes with respect to the other brush, and
      • a dust compartment adjacent to at least one of the brushes for receiving dust swept up thereby.
  • Preferably, the floor sweeper comprising a pair of said electric motors, one of which drives one of the brushes and the other of which drives the other brush.
  • Preferably the electric motors are positioned between the rollers.
  • Preferably one of the motors is situated adjacent to one end of the brushes and the other motor is situated adjacent to the other end of the brushes.
  • Preferably the floor sweeper further comprises a battery compartment in between the brushes.
  • Preferably, the floor sweeper further comprises a pair of drive belts, one transmitting rotational output of one of the motors to one of the brushes and the other of which transmits rotational output of the other motor to the other brush.
  • Preferably, the floor sweeper further comprises floor-engaging rollers attached to the chassis and maintaining each brush at a defined spacing above a flat swept surface in use.
  • Preferably the rollers are located inboard of the brushes.
  • A preferably, the floor sweeper further comprises a pair of buffer strip upon the chassis outboard of the brushes defining a minimum spacing between the brushes and a flat swept surface in use.
  • Preferably, the floor sweeper further comprises a pair of said dust compartments—one adjacent to each brush and a deflection surface adjacent to each brush and positioned proximate a respective said dust compartment to deflect dust swept up by the brush into that dust compartment.
  • Preferably, the deflection surface has an edge strip defining a minimum spacing between the brushes and a flat swept surface in use.
  • Preferably, each brush has a plurality of bristles extending radially therefrom and wherein the bristles have tips that reach a flat swept surface if one of the buffer strips engages the flat swept surface in use.
  • Preferably, each brush comprises a radially extending strip extending radially as far as the tips of the bristles.
  • A preferably, the carpet sweeper further comprises an attachment for an elongate handle attached to the chassis by a multi-pivot joint.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • A preferred form of the present invention will now be described by way of example with reference to the accompanying drawings, wherein:
  • FIG. 1 is a schematic cross-sectional end elevation of a motorised floor sweeper,
  • FIG. 2 is a schematic cross-sectional top view of the floor sweeper of FIG. 1,
  • FIG. 3 is a schematic plan of the floor sweeper of Figures is 1 and 2,
  • FIG. 4 is a schematic elevation of the floor sweeper of FIGS. 1 to 3, and
  • FIG. 5 is a schematic plan of the floor sweeper of FIGS. 1 to 4.
    • DESCRIPTION OF THE PREFERRED EMBODIMENT
  • In the accompanying drawings there is depicted schematically a motorised floor sweeper 10 comprising a chassis 11 having a handle attachment 19 connected thereto by a multi-pivot joint 20 to be described later.
  • The chassis 11 is typically a plastics moulding and has a pair of brushes 21 rotatably mounted therein. Each brush 21 comprises a central longitudinal horizontal shaft 12 extending in the transverse direction of the chassis and parallel to one another. A plurality of bristles 22 extend radially from the shaft 12. Formed integrally with the shaft 12 is a straight longitudinal strip 18 having a remote edge at the same or similar radial offset to the shaft longitudinal axis as the tip of each bristle 22. As shown in FIG. 2, the bristles extend in a spiral formation about the shaft 12.
  • Supported rotatably at the bottom of the chassis are four rollers 14. When all of the rollers contact a hard flat swept surface, the tips of the bristles 22 are spaced away from the floor surface. If the floor sweeper is being used on carpet however, the rollers 14 will sink into the carpet somewhat thereby allowing the tips of the bristles to contact the top of the carpet pile or at least approach the carpet pile. There is a buffer strip 15 at the forward and trailing edges of the chassis 11 which would press against the floor surface or carpet should the chassis tilt about one of the rollers 14 in use. The rollers 14 and tips of the bristles 22 extend the same distance downwardly from the chassis 11 this enables the bristle tips to just touch on a hard floor surface. The bottom extremity of the buffer strip 15 is approximately 8.5 mm higher than the bottom extremity of each roller 14. This enables the sweeper to be used on carpet without jamming of the brushes 21.
  • Located inboard of and adjacent to each brush 21 is a deflection plate 16 having an edge strip 17 approximately 5.5 mm higher than the bottom extremity of each roller 14. Above each deflection plate 16 there is an opening 24 through which dust swept up by the respective brush 21 enters a dust compartment 23. It should be noted in this regard that the right-hand brush in FIG. 1 rotates in a clockwise sense, whereas the left-hand brush rotates in an anticlockwise sense. There is a lid 25 covering each dust compartment 23 which can be lifted prior to inversion of the chassis for dust-removal purposes.
  • There is a rechargeable battery 26 located in between the brushes 21 and extending in the transverse direction across the chassis. The battery powers a pair of motors 13 electrically connected in parallel and each having an output pulley 27 about which a drive belt 28 extends. Each drive belt 28 extends about a roller pulley 29 at the end of each roller. As seen in FIG. 2, the motors 13 flank the batteries 26 and the respective pulleys and drive belts are at opposite lateral ends of the chassis 11. There is a switch 30 (FIG. 5) on the top of the chassis to activate the motors 26.
  • The handle attachment 19 has a hollow interior to receive the end of a wooden broom handle for example. At the bottom end of the attachment there is a recess 31 into which a pivot pin 32 of a pivot joint 33 is received. The pivot joint 33 can pivot about axis A (FIG. 1) back and forth in a plane of intended operational movement of the floor sweeper 10. The pivot joint 33 is designed to also enable pivotal movement of the handle attachment 19 about axis B (FIG. 4) so that the handle attachment can pivot in a lateral direction.
  • It should be appreciated that modifications and alterations obvious to those skilled in the art are not to be considered as beyond the scope of the present invention. For example, a single motor might be adapted to drive both brushes in opposite rotational directions.

Claims (14)

1. A motorised floor sweeper comprising:
a chassis,
a pair of elongate brushes mounted to the chassis in parallel relationship with one another,
an electric motor mounted to the chassis and causing counter-rotation of one of the brushes with respect to the other brush, and
a dust compartment adjacent to at least one of the brushes for receiving dust swept up thereby.
2. The floor sweeper of claim 1 comprising a pair of said electric motors, one of which drives one of the brushes and the other of which drives the other brush.
3. The floor sweeper of the claim 2 wherein the electric motors are positioned between the rollers.
4. The floor sweeper of claim 3 wherein one of the motors is situated adjacent to one end of the brushes and the other motor is situated adjacent to the other end of the brushes.
5. The floor sweeper of claim 4 further comprising a battery compartment in between the brushes.
6. The floor sweeper of claim 4 further comprising a pair of drive belts, one transmitting rotational output of one of the motors to one of the brushes and the other of which transmits rotational output of the other motor to the other brush.
7. The floor sweeper of claim 1 further comprising floor-engaging rollers attached to the chassis and maintaining each brush at a defined spacing above a flat swept surface in use.
8. The floor sweeper of claim 7 wherein the rollers are located inboard of the brushes.
9. The floor sweeper of claim 8 further comprising a pair of buffer strip upon the chassis outboard of the brushes defining a minimum spacing between the brushes and a flat swept surface in use.
10. The floor sweeper of claim 1 comprising a pair of said dust compartments—one adjacent to each brush and a deflection surface adjacent to each brush and positioned proximate a respective said dust compartment to deflect dust swept up by the brush into that dust compartment.
11. The floor sweeper of claim 10 wherein the deflection surface has an edge strip defining a minimum spacing between the brushes and a flat swept surface in use.
12. The floor sweeper of claim 9 wherein each brush has a plurality of bristles extending radially therefrom and wherein the bristles have tips that reach a flat swept surface if one of the buffer strips engages the flat swept surface in use.
13. The floor sweeper of claim 13 wherein each brush comprises a radially extending strip extending radially as far as the tips of the bristles.
14. The carpet sweeper of claim 1 comprising an attachment for an elongate handle attached to the chassis by a multi-pivot joint.
US10/748,929 2003-07-18 2003-12-30 Motorised floor sweeper Abandoned US20050011028A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN03267700.6 2003-07-18
CNU032677006U CN2631413Y (en) 2003-07-18 2003-07-18 Electric whisk broom

Publications (1)

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US20050011028A1 true US20050011028A1 (en) 2005-01-20

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050217042A1 (en) * 2004-04-02 2005-10-06 Royal Appliance Mfg. Co. Powered cleaning appliance
US20070089250A1 (en) * 2005-10-20 2007-04-26 Hsiao Tien J Power floor cleaning apparatus
GB2434743A (en) * 2006-02-02 2007-08-08 James Anthony West Surface debris removal apparatus
US20080141472A1 (en) * 2005-07-04 2008-06-19 Alfred Kaercher Gmbh & Co. Kg Mobile floor-cleaning appliance
US20080172809A1 (en) * 2006-11-01 2008-07-24 Park Sung K Pickup cleaning device with static electric bar/roller
US20100115719A1 (en) * 2007-08-06 2010-05-13 Dovia International Limited Surface debris removal apparatus
US9517396B2 (en) 2014-01-24 2016-12-13 John Albert IRELAND Curling broom incorporating a motor
USD836870S1 (en) * 2017-09-08 2018-12-25 Aventom Ltd. Handle for a brush
USD838420S1 (en) * 2017-03-17 2019-01-15 Telebrands Corp. Sweeper
WO2019048496A1 (en) * 2017-09-08 2019-03-14 Alfred Kärcher SE & Co. KG Surface cleaning machine comprising counter-rotating cleaning roller units and method for operating such a surface cleaning machine
USD850037S1 (en) * 2016-09-09 2019-05-28 Evo Design Llc Hand held sweeper
USD891016S1 (en) * 2018-04-29 2020-07-21 Shenzhen Fcy Technologies Co., Ltd. Electric sweeper
EP3393323B1 (en) 2015-12-22 2021-07-21 Run The Race Pty Ltd Improved vacuum head attachment and vacuum cleaner

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217659616U (en) * 2022-05-31 2022-10-28 宁波博瑞德凯国际贸易有限公司 Electric mop head

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1582132A3 (en) * 2004-04-02 2007-05-23 Royal Appliance MFG. CO. Powered cleaning appliance
US20050217042A1 (en) * 2004-04-02 2005-10-06 Royal Appliance Mfg. Co. Powered cleaning appliance
US7617557B2 (en) 2004-04-02 2009-11-17 Royal Appliance Mfg. Co. Powered cleaning appliance
US20100325820A1 (en) * 2004-04-02 2010-12-30 Reindle Mark E Powered cleaning appliance
US7861352B2 (en) 2004-04-02 2011-01-04 Royal Appliance Mfg. Co. Powered cleaning appliance
US7900310B2 (en) 2004-04-02 2011-03-08 Royal Appliance Mfg. Co. Powered cleaning appliance
US20110154589A1 (en) * 2004-04-02 2011-06-30 Reindle Mark E Powered cleaning appliance
US20080141472A1 (en) * 2005-07-04 2008-06-19 Alfred Kaercher Gmbh & Co. Kg Mobile floor-cleaning appliance
US8091169B2 (en) * 2005-07-04 2012-01-10 Alfred Kaercher Gmbh & Co. Kg Mobile floor-cleaning appliance
US20070089250A1 (en) * 2005-10-20 2007-04-26 Hsiao Tien J Power floor cleaning apparatus
GB2434743B (en) * 2006-02-02 2011-07-20 James Anthony West Surface Debris Removal Apparatus
GB2434743A (en) * 2006-02-02 2007-08-08 James Anthony West Surface debris removal apparatus
US20080172809A1 (en) * 2006-11-01 2008-07-24 Park Sung K Pickup cleaning device with static electric bar/roller
US20100115719A1 (en) * 2007-08-06 2010-05-13 Dovia International Limited Surface debris removal apparatus
US8443478B2 (en) 2007-08-06 2013-05-21 Dovia International Limited Surface debris removal apparatus
US9517396B2 (en) 2014-01-24 2016-12-13 John Albert IRELAND Curling broom incorporating a motor
EP3393323B1 (en) 2015-12-22 2021-07-21 Run The Race Pty Ltd Improved vacuum head attachment and vacuum cleaner
USD850037S1 (en) * 2016-09-09 2019-05-28 Evo Design Llc Hand held sweeper
USD838420S1 (en) * 2017-03-17 2019-01-15 Telebrands Corp. Sweeper
USD836870S1 (en) * 2017-09-08 2018-12-25 Aventom Ltd. Handle for a brush
WO2019048496A1 (en) * 2017-09-08 2019-03-14 Alfred Kärcher SE & Co. KG Surface cleaning machine comprising counter-rotating cleaning roller units and method for operating such a surface cleaning machine
CN111093448A (en) * 2017-09-08 2020-05-01 阿尔弗雷德·卡赫欧洲两合公司 Surface cleaning machine with counter-running cleaning roller unit and method for operating the surface cleaning machine
USD891016S1 (en) * 2018-04-29 2020-07-21 Shenzhen Fcy Technologies Co., Ltd. Electric sweeper

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Effective date: 20031215

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