US20040000023A1 - Vacuum cleaner with reversible rotary agitator - Google Patents

Vacuum cleaner with reversible rotary agitator Download PDF

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Publication number
US20040000023A1
US20040000023A1 US10/383,927 US38392703A US2004000023A1 US 20040000023 A1 US20040000023 A1 US 20040000023A1 US 38392703 A US38392703 A US 38392703A US 2004000023 A1 US2004000023 A1 US 2004000023A1
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US
United States
Prior art keywords
agitator
nozzle assembly
drive motor
vacuum cleaner
power
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
US10/383,927
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English (en)
Inventor
J. Hitzelberger
John Cloud
Eric Streciwilk
Hiroshi Nishimura
Hiroshi Nakao
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.)
Panasonic Corp of North America
Original Assignee
Matsushita Electric Corp of America
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 Matsushita Electric Corp of America filed Critical Matsushita Electric Corp of America
Priority to US10/383,927 priority Critical patent/US20040000023A1/en
Assigned to MATSUSHITA ELECTRIC CORPORATION OF AMERICA reassignment MATSUSHITA ELECTRIC CORPORATION OF AMERICA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HITZELBERGER, J. ERIK, CLOUD, JOHN A., III, NAKAO, HIROSHI, NISHIMURA, HIROSHI, STRECIWILK, ERIK J.
Assigned to MATSUSHITA ELECTRIC CORPORATION OF AMERICA reassignment MATSUSHITA ELECTRIC CORPORATION OF AMERICA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HITZELBERGER, J. ERIK, HIROSHINISHIMURA, NAKAO, HIROSHI, CLOUD, JOHN A. III, STRECIWILK, ERIK J.
Assigned to MATSUSHITA ELECTRIC CORPORATION OF AMERICA reassignment MATSUSHITA ELECTRIC CORPORATION OF AMERICA CORRECTIVE ASSIGNMENT TO CORRECT THE SPELLING OF THE THIRD ASSIGNOR PREVIOUSLY RECORDED ON REEL 014024 FRAME 0887. Assignors: CLOUD, JOHN A. III, HITZELBERGER, J. ERIK, NAKAO, HIROSHI, NISHIMURA, HIROSHI, STRECIWILK, ERIC J.
Publication of US20040000023A1 publication Critical patent/US20040000023A1/en
Abandoned legal-status Critical Current

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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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/32—Handles
    • A47L9/325—Handles for wheeled suction cleaners with steering handle
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A47L5/30—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle with driven dust-loosening tools, e.g. rotating brushes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/009—Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805—Parameters or conditions being sensed
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
    • A47L9/2847—Surface treating elements

Definitions

  • the present invention relates generally to the vacuum cleaner field, and, more particularly, to a vacuum cleaner having a reversible rotary agitator for propelling or drawing a nozzle assembly of the vacuum cleaner in a forward or rearward direction.
  • Upright vacuum cleaners and power head assemblies for canister vacuum cleaners in all of their designs and permutations have become increasingly popular over the years.
  • Upright vacuum cleaners generally incorporate a nozzle assembly which rides on wheels over a floor surface to be cleaned and a canister assembly that is pivotally connected to the nozzle assembly.
  • the canister assembly typically includes an operating handle that is manipulated by an operator to move the vacuum cleaner to and fro across the floor.
  • the canister assembly also includes a dirt collection vessel comprising either a bag-like filter or a dirt cup that may include a cyclonic separation chamber and filter combination.
  • the dirt collection vessel traps dirt and debris while substantially clean air is exhausted by an electrically operated fan that is driven by an onboard motor. It is this fan and motor arrangement that generates the drop in air pressure necessary to provide the desired cleaning action.
  • a rotary agitator is also provided in the nozzle assembly.
  • the rotary agitator includes tufts of bristles, brushes, beater bars or the like to beat dirt and debris from the nap of a carpet being cleaned while the pressure drop or vacuum is used to force air entrained with this dirt and debris into a nozzle housing of the vacuum cleaner.
  • Power head assemblies for canister vacuum cleaners similarly include a rotary agitator in the nozzle assembly.
  • the agitator In either the upright vacuum cleaner or the power head assembly, as the agitator rotates and engages the surface being cleaned, the agitator has a tendency to pull the nozzle assembly forward in accordance with its direction of rotation.
  • the present invention utilizes the motion imparted to the nozzle assembly of the vacuum cleaner by a reversibly driven agitator to full advantage and to provide a vacuum cleaner that is self-propelled in both a forward and rearward direction.
  • a vacuum cleaner works with the operator at all times and is easier to move to and fro across the surface being cleaned.
  • an improved self-propelled vacuum cleaner includes a cannister assembly, a suction generator, and a nozzle assembly.
  • the nozzle assembly includes a housing that defines an agitator cavity, an agitator mounted in the agitator cavity for rotation in a forward and rearward direction for propelling the nozzle assembly, and a drive motor for driving the agitator.
  • An actuator for controlling operation of the drive motor and rotation direction of the agitator may be carried on either the cannister assembly or the nozzle assembly.
  • a moveable hand grip is slidably mounted to a control handle for directing the forward and rearward rotation of the agitator and direction of movement of the nozzle assembly.
  • the hand grip slides along a stem of the control handle.
  • a forward thrust moves the hand grip forward forcing the closure of a forward switch and the application of a voltage signal to a controller.
  • a reverse thrust exerted on the hand grip moves the hand grip rearward opening the forward switch and forcing the closure of a rearward switch and the application of a voltage signal to the controller.
  • the status of the switches is monitored by the controller.
  • the controller is programmed to drive the drive motor in either of the first direction and the second direction upon receipt of a signal from the actuator. More specifically, the controller may be programmed upon a change of state of the actuator signal to remove power from the drive motor and to reapply power to the drive motor such that the agitator is rotated in a different direction.
  • the reapplication of power to the drive motor is delayed by the controller for between 0.1 second and 1.0 second to allow the agitator rotating in the first direction to slow significantly, if not stop, before power is reapplied to drive the agitator in the second direction and vice versa.
  • the power reapplied to the agitator drive motor may be incrementally increased using a ramp or step function, or the like, to a normal operating level in order to reduce arcing and inrush current peaks.
  • the vacuum cleaner described generally above may be an upright vacuum cleaner or extractor, or a canister type vacuum cleaner equipped with a power nozzle as are well known in the art.
  • the agitator drive motor may be positioned coaxially with the agitator including within the agitator.
  • the nozzle assembly may include a belt and pulley assembly or even a gear drive connecting a remotely positioned drive motor to the agitator as is also well known in the art.
  • the canister assembly in either instance, includes a collection vessel comprising either a bag-like filter or a dirt cup that may but does not necessarily have to include a cyclonic separation chamber and filter combination. The collection vessel traps dirt and debris while substantially clean air is exhausted by an electrically operated fan that is driven by an onboard motor.
  • a method of propelling a nozzle assembly of a vacuum cleaner having a power driven agitator in a forward or rearward direction may be broadly defined as including the step of selectively rotating the agitator in a first direction to draw the nozzle assembly forward and in a second direction to draw the nozzle assembly rearward.
  • the method may be alternatively described as including the steps of sensing operator input to determine a direction of desired nozzle assembly movement and driving the agitator to draw the nozzle assembly in the desired direction.
  • a vacuum cleaner in accordance with still another aspect of the present invention, includes a nozzle assembly including an agitator cavity and at least one rotary agitator mounted for rotation in the agitator cavity. That rotary agitator is rotated in a first direction for drawing the nozzle assembly forward and in a second direction for drawing the nozzle assembly rearward.
  • the vacuum cleaner also includes a cannister assembly connected to the nozzle assembly, a suction generator, a drive motor for driving the at least one agitator, and an actuator for controlling operation of the drive motor and rotation direction of the at least one agitator.
  • the suction generator, the at least one agitator, and the drive motor may each be carried on one of the nozzle assembly and cannister assembly.
  • FIG. 1 is a perspective view of a vacuum cleaner constructed in accordance with the teachings of the present invention
  • FIG. 2 is a schematic block diagram showing the control circuit which controls the application of electrical power to the agitator motor and thus the direction the nozzle assembly is propelled;
  • FIG. 3 is a cross-sectional view through the nozzle assembly of the vacuum cleaner showing the agitator and agitator drive arrangement
  • FIG. 3 a is a detailed cross-sectional view through the agitator.
  • FIG. 1 showing a preferred embodiment of an upright vacuum cleaner 10 of the present invention.
  • embodiments of the present invention also include different upright vacuum cleaners and canister vacuum cleaners equipped with a powerhead incorporating a power driven agitator such as shown, for example, in U.S. Pat. No. 6,148,474 which is owned by the assignee of the present invention and is incorporated herein by reference.
  • the upright vacuum cleaner 10 includes a nozzle assembly 16 and a canister assembly 18 pivotally connected to the nozzle assembly.
  • the canister assembly 18 further includes a control handle 20 and a hand grip 22 .
  • a power switch 24 is provided for turning the vacuum cleaner on and off.
  • electrical power is supplied to the vacuum cleaner 10 from a standard electrical wall outlet through a cord (not shown) as is known in the art.
  • the hand grip 22 is slidably mounted to a stem 21 of the control handle 20 .
  • the hand grip 22 slides along the stem 21 as shown by action arrows A in FIG. 1.
  • a forward thrust moves the hand grip 22 forward toward the cannister assembly 18 forcing closure of a forward switch 23 and the application of a voltage signal (Vcc) generated by a power supply (not shown) to a first pin of controller 27 .
  • a reverse thrust exerted on the hand grip 22 moves the hand grip rearward away from the cannister assembly 18 opening the forward switch and forcing closure of a rearward switch 25 and the application of the voltage signal (Vcc) to a second pin of controller 27 .
  • the voltage signal (Vcc) generated by a power supply (not shown) is selectively applied to the first or second pins of controller 27 .
  • the controller 27 in turn generates an output signal (S 1 ) which is applied to and directs the operation of relay 29 and agitator motor 40 .
  • the electrical power is converted from AC to DC by converter 31 .
  • the DC power is applied to the agitator motor 40 through relay 29 such that the motor is rotated in a first direction for drawing the nozzle assembly 16 forward or in a second direction for drawing the nozzle assembly rearward depending upon the open/closed states of the switches 23 and 25 .
  • the controller is programmed to monitor the open/closed states of the switches 23 and 25 and to generate the output signal (S 1 ) which operates relay 29 accordingly.
  • the controller 27 is further programmed to remove the DC power provided through relay 29 to the drive motor 40 and to reapply power to the drive motor such that the agitator is rotated in a different direction upon a change in state of the switches 23 and 25 .
  • the controller 27 when the operator of the vacuum cleaner 10 desires to change the direction of movement of the vacuum cleaner 10 by actuating the hand grip 22 , the controller 27 generates a different output signal (S 1 ) causing the removal and reapplication of DC power to the agitator motor 40 through relay 29 .
  • the reapplication of power to the drive motor 40 is delayed by the controller 27 for between 0.1 second and 1.0 second to allow the agitator 38 rotating in the first direction to slow significantly, if not stop, before DC power is reapplied to drive the agitator 38 in the second direction and vice versa.
  • the DC power reapplied to the agitator drive motor 40 may be incrementally increased using a ramp or step function, or the like, to a normal operating level in order to reduce arcing and inrush current peaks.
  • a pair of rear wheels 26 (partially shown) are provided at a lower portion of the cannister assembly 18 and a pair of front wheels 27 are provided on the nozzle assembly 16 . Together, these wheels 26 , 27 support the vacuum cleaner 10 for movement across the floor.
  • a foot latch (not shown) may function to lock the canister assembly 18 in an upright position as shown in FIG. 1. When the foot latch is released, the canister assembly 18 may be pivoted relative to the nozzle assembly 16 as the vacuum cleaner 10 is manipulated to-and-fro to clean the floor.
  • the canister assembly 18 includes a cavity adapted to receive and hold a collection assembly or vessel 12 .
  • a detailed description of the dust collection vessel 12 of the present preferred embodiment may be found in PCT Application PCT/US01/47401, entitled Cyclonic Vacuum Cleaner with Filter and Filter Sweeper, filed Nov. 13, 2001.
  • the dust collection vessel 12 may likewise be accessible from the rear of the vacuum cleaner 10 .
  • the dust collection vessel may alternatively include a bag-like filter to receive dirt and debris as is also well known in the art.
  • the canister assembly 18 further carries a suction generator or fan 33 and suction fan drive motor 34 .
  • the suction fan 33 and its cooperating drive motor 34 function to generate a vacuum airstream for drawing air, dust, dirt and debris from a surface to be cleaned through the nozzle assembly 16 to the collection vessel 12 .
  • the suction fan 33 and suction fan drive motor 34 are illustrated as being carried on the canister assembly 18 , it should be appreciated that one or both could likewise be carried on the nozzle assembly 16 if desired.
  • the nozzle assembly 16 includes a nozzle housing 35 that defines an agitator cavity 36 that receives a rotating agitator 38 .
  • the agitator 38 shown is rotatably mounted in the agitator cavity 36 and driven by a motor 40 and cooperating gear drive 42 .
  • the motor 40 and gear drive 42 are coaxial with and housed within the agitator 38 as is described in greater detail below (see FIGS. 3 and 3 a ).
  • the vacuum cleaner of the present preferred embodiment is described with the agitator motor 40 positioned coaxially with and held within the agitator 38 , the motor could be positioned outside of the agitator in either the nozzle assembly 16 or the canister assembly 18 utilizing a drive arrangement incorporating a belt and pulley assembly and/or a gear drive assembly in any manner desired.
  • the scrubbing action of the rotary agitator 38 and the negative air pressure created by the suction fan 33 and drive motor 34 cooperate to brush and beat dirt and dust from the nap of the carpet being cleaned and then to draw the dirt and dust laden air from the agitator cavity 36 to the dust collection vessel 12 .
  • the dirt and dust laden air passes serially through a suction inlet defined by the nozzle housing 35 and hose and/or an integrally molded conduit in the nozzle housing 35 and/or canister assembly 18 as is generally known in the art.
  • the dirt and dust laden air is delivered into the dust collection vessel 12 which serves to trap the suspended dirt, dust and other particles inside while allowing the now clean air to pass freely through to the suction fan 33 and ultimately to the environment through an exhaust port 50 .
  • FIGS. 3 and 3 a show the mounting of the agitator motor 40 and associated gear drive 42 coaxially with and within the agitator 38 in detail.
  • the agitator 38 is mounted for rotation relative to the nozzle assembly 16 .
  • a first end of the agitator 38 includes an end cap 52 which is supported on bearings 54 on a stub shaft 55 held in mounting block 56 keyed into slot 58 in the side of the nozzle housing 35 .
  • An end cap 60 at the opposite end of the agitator 38 is supported on bearings 62 mounted on the housing 64 of the motor 40 .
  • the motor 40 is fixed to the nozzle housing 35 by means of the mounting block 66 fixed to the motor housing 64 and keyed in the slot 68 in the side of the nozzle housing.
  • the motor 40 drives a shaft 70 including gear teeth 72 .
  • the drive shaft 70 extends through a bearing 74 held in the hub 76 of the planetary gear set carrier 78 .
  • a fan 80 is keyed or otherwise secured to the distal end of the drive shaft 70 .
  • the planetary gear set carrier 78 includes three stub shafts 82 that each carry a planetary gear 84 .
  • Each of the planetary gears 84 include teeth that mesh with the gear teeth 72 of the drive shaft 70 .
  • the planetary gears 82 mesh with the teeth of an annular gear 86 that is fixed to the agitator motor housing 64 by pin or other means.
  • planetary gear set carrier 78 also includes a drive ring 88 and associated rubber drive boot 87 which includes a series of spaced channels 89 that receive and engage axial ribs 91 projecting inwardly radially from the inner wall of the agitator 38 .
  • the rubber drive boot 87 provides the necessary damping to insure the smooth transmission of power to the agitator 38 .
  • the drive shaft 70 Simultaneously with the rotation of the planetary gear set carrier 78 and agitator 38 , the drive shaft 70 also drives the fan 80 at a ratio of between 4-1 to 10-1 and most preferably 6-1 with respect to the agitator 38 .
  • the resulting rapid rotation of the fan 80 helps to move air through the agitator 38 and ensure proper cooling of the agitator motor 40 during its operation.
  • the operator applies a force to the hand grip 22 dependent upon a desired direction of movement of the nozzle assembly 16 .
  • the forward switch 23 is closed through contact with the hand grip and the voltage signal (Vcc) is applied to the first pin of controller 27 .
  • the controller 27 in turn generates an output signal (S 1 ) based on the open/closed states of the switches 23 , 25 which is applied to and directs the operation of relay 29 .
  • DC power is applied to the agitator motor 40 such that the agitator 38 is driven in the forward direction drawing the nozzle assembly 16 forward.
  • relay 29 operates to direct the DC power to the agitator motor 40 such that the agitator 38 is driven in a rearward direction drawing the nozzle assembly 16 rearward.
  • the controller 27 stops generating the present output signal (S 1 ) thus turning the relay 29 off and removing power from the agitator motor 40 .
  • the controller 27 may then generate a new output signal (S 1 ) either immediately or after a delay period which actuates the relay 29 to direct the DC power to the agitator motor 40 such that the agitator 38 is driven in the rearward direction.
  • the delay established by the controller 27 may be between 0.1 second and 1.0 second to allow the agitator 38 rotating in the first direction to slow significantly, if not stop, before DC power is reapplied to drive the agitator 38 for movement in the second direction and vice versa. In this manner, overheating of the agitator motor 40 may be substantially avoided.
  • additional switching devices such as a FET array, for example, activated by the controller output signal may be utilized to direct the DC power to the agitator motor 40 .
  • the vacuum cleaner could also be equipped with multiple agitators rather than a single agitator as illustrated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)
US10/383,927 2002-03-08 2003-03-07 Vacuum cleaner with reversible rotary agitator Abandoned US20040000023A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/383,927 US20040000023A1 (en) 2002-03-08 2003-03-07 Vacuum cleaner with reversible rotary agitator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36296002P 2002-03-08 2002-03-08
US10/383,927 US20040000023A1 (en) 2002-03-08 2003-03-07 Vacuum cleaner with reversible rotary agitator

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US20040000023A1 true US20040000023A1 (en) 2004-01-01

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US (1) US20040000023A1 (enrdf_load_stackoverflow)
EP (1) EP1371317A3 (enrdf_load_stackoverflow)
JP (1) JP2003325397A (enrdf_load_stackoverflow)
CA (1) CA2421314A1 (enrdf_load_stackoverflow)
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US20030188397A1 (en) * 2002-04-08 2003-10-09 Royal Appliance Mfg. Co. Internally driven agitator
US20050015918A1 (en) * 2003-07-22 2005-01-27 Royal Appliance Mfg. Co. Brushless dc drive mechanism for seld propelled aplicance
US20050160555A1 (en) * 2004-01-27 2005-07-28 Panasonic Corporation Of North America Vacuum cleaner with twin independently driven agitators
CN103190864A (zh) * 2012-01-10 2013-07-10 戴森技术有限公司 用于真空吸尘器的清洁头
US20140115818A1 (en) * 2012-10-26 2014-05-01 Dyson Technology Limited Switching mechanism
US10213077B2 (en) 2014-03-19 2019-02-26 Dyson Technology Limited Cleaner head
US10555650B2 (en) 2014-03-19 2020-02-11 Dyson Technology Limited Cleaner appliance
US10813520B2 (en) 2017-12-18 2020-10-27 Techtronic Floor Care Technology Limited Surface cleaning device with triggerless fluid distribution mechanism
US11039722B2 (en) 2018-04-23 2021-06-22 Sharkninja Operating Llc Assisted drive for surface cleaning devices
US11179068B2 (en) 2011-12-11 2021-11-23 Abbott Diabetes Care Inc. Analyte sensor devices, connections, and methods
CN114246518A (zh) * 2021-11-18 2022-03-29 安克创新科技股份有限公司 一种清洁装置和清洁装置的控制方法
US11382477B2 (en) 2017-12-18 2022-07-12 Techtronic Floor Care Technology Limited Surface cleaning device with automated control
US12239267B2 (en) 2019-07-02 2025-03-04 Mark Jeffery Giarritta Four-direction scrubbing carpet shampooer

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US20040010884A1 (en) * 2002-07-22 2004-01-22 Hitzelberger J. Erik Floor care apparatus with deep cleaning action
RU2006119639A (ru) * 2003-12-06 2007-12-27 Форверк Унд Ко. Интерхолдинг Гмбх (De) Способ эксплуатации пылесоса с всасывающей насадкой, а также пылесос с всасывающей насадкой
KR100774463B1 (ko) * 2004-04-30 2007-11-08 엘지전자 주식회사 업라이트 청소기의 셀프 프로펠장치
KR100635823B1 (ko) * 2005-04-01 2006-10-19 엘지전자 주식회사 직립형 진공청소기의 주행 제어용 그립
GB2499213B (en) 2012-02-08 2016-10-19 Dyson Technology Ltd A cleaner-head for a vacuum cleaner
GB2499214B (en) 2012-02-08 2014-03-26 Dyson Technology Ltd A cleaner-head for a vacuum cleaner
WO2022136185A1 (en) * 2020-12-23 2022-06-30 New Ermes Europe S.R.L. Motorized suction head
DE102022107565A1 (de) 2022-03-30 2023-10-05 Miele & Cie. Kg Staubsauger, vorzugsweise Handstaubsauger

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US12185889B2 (en) 2017-12-18 2025-01-07 Techtronic Floor Care Technology Limited Surface cleaning device with triggerless fluid distribution mechanism
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US11395571B2 (en) 2017-12-18 2022-07-26 Techtronic Floor Care Technology Limited Surface cleaning device with triggerless fluid distribution mechanism
US11896176B2 (en) 2017-12-18 2024-02-13 Techtronic Floor Care Technology Limited Surface cleaning device with triggerless fluid distribution mechanism
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