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| Number | Title | Issue Date |
| 7944116 | Drive circuit A drive circuit for a high-frequency agitation source includes a signal generator generating a train of low voltage square-wave pulses at a drive frequency, a booster including a boost inductor generating a back EMF and configured to produce a high-voltage pulse tra... | 05/17/2011 |
| 7895706 | Surface treating head assembly A surface treating head assembly for an appliance such as a vacuum cleaner includes a head and a drivable agitator in the form of a brush bar, rotatably housed in a housing. A motor is arranged to drive a mechanism, such as cams arranged to adjust the position of th... | 03/01/2011 |
| 7873437 | Autonomous machine A control system is provided for navigating an autonomous machine around a working area in a manner that causes the machine to traverse substantially all of the free surface of the working area. The control system is arranged to cause the machine to follow a boundar... | 01/18/2011 |
| 7867307 | Cyclonic separating apparatus for a cleaning appliance A cyclonic separating apparatus for a cleaning appliance includes a plurality of cyclonic separators arranged in series for separating particles from a dirt- and dust-laden airflow, at least two or three collectors for collecting separated dirt and dust, and a closu... | 01/11/2011 |
| 7786628 | Rotor assembly with balancing member A rotor assembly for an electronic machine such as a motor includes a rotor on a shaft having a bearing at each end portion, the bearings being arranged to rotatably support the rotor and shaft. The assembly further includes a balancing member, from which material m... | 08/31/2010 |
| 7637991 | Cyclonic separating apparatus A cyclonic separating apparatus includes a separating chamber, an inlet communicating with the separating chamber and an outlet formed by a conduit communicating with an interior portion of the separating chamber and having a longitudinal axis, wherein a single plan... | 12/29/2009 |
| 7628831 | Cyclonic separating apparatus A cyclonic separating apparatus includes a chamber for separating dirt and dust from an airflow, an inlet to the chamber and a shroud. The shroud includes a wall having a multiplicity of through-holes forming an outlet from the chamber, each of the through-holes hav... | 12/08/2009 |
| 7618470 | Cyclonic separating apparatus A separating apparatus includes a separating chamber in which cyclonic separation is able to take place, an inlet to the separating chamber and a shroud that includes a wall having a multiplicity of through-holes forming an outlet from the separating chamber and als... | 11/17/2009 |
| 7610653 | Surface treating appliance A surface treating appliance, such as a vacuum cleaner, includes a main body, a surface treating head and a support assembly. The support assembly is rollably mounted to the main body for allowing the main body to be rolled along a surface. The support assembly also... | 11/03/2009 |
| 7607196 | Vacuum cleaner with suction head with locking means of pivotal movement about axis of rotation A vacuum cleaner includes a head for contacting the ground and a body which is pivotable relative to the head about a first axis of rotation and about a second axis of rotation. The body has a locking mechanism and the head has a reciprocal locking mechanism which a... | 10/27/2009 |
| 7603745 | Cleaner head for a cleaning appliance A cleaner head for a cleaning appliance includes a dirt and dust separating apparatus, a motor configured to drive a fan for generating suction air flow and a selectively-operable switch for energizing the motor and cleaner head. The cleaner head has a drivable agit... | 10/20/2009 |
| 7600292 | Surface treating appliance A surface treating appliance, such as a vacuum cleaner, includes a handle, a surface treating head and a support assembly. The support assembly is rollably mounted to the main body for allowing the main body to be rolled along a surface. A linkage is provided betwee... | 10/13/2009 |
| 7581285 | Surface treating appliance A surface treating appliance, such as a vacuum cleaner, includes a main body, a surface treating head and a support assembly. The support assembly is rollably mounted to the main body for allowing the main body to be rolled along a surface. The support assembly also... | 09/01/2009 |
| 7581284 | Surface treating appliance A surface treating appliance, such as a vacuum cleaner, includes a main body, a surface treating head and a support assembly. The support assembly is rollably mounted to the main body for allowing the main body to be rolled along a surface. The support assembly incl... | 09/01/2009 |
| 7526834 | Vacuum cleaning head A vacuum cleaning head includes a housing having an agitator in the form of a brush bar rotatably arranged in a chamber having an air inlet and an air outlet and also includes an air turbine for driving the brush bar is provided. The air turbine has its own air inle... | 05/05/2009 |
| 7513924 | Cyclonic separating apparatus A cyclonic separating apparatus for separating solid material from a fluid includes a separating chamber, an inlet communicating with the separating chamber for carrying the fluid with the solid matter entrained therein to the separating chamber, and an outlet for c... | 04/07/2009 |
| 7509825 | Automatic balancing device Provided herein is an automatic balancing device for counterbalancing an out-of-balance mass present in a rotating body. The automatic balancing device includes a chamber with an outer wall and an axis, first and second counterbalancing masses constrained to move fr... | 03/31/2009 |
| 7443125 | Power conversion apparatus A power conversion apparatus for converting power from an alternating source to dc includes an input stage for receiving power from the alternating source, which includes an input filter, a rectifier for rectifying the alternating signal, a capacitor for storing ene... | 10/28/2008 |
| 7441307 | Vacuum cleaning head A restricting device is positioned in the flow duct leading from the main inlet to the cleaning head of a vacuum cleaner and is movable between a restrictive position, in which it serves to restrict the cross-section of the discharge outlet, and an open position, in... | 10/28/2008 |
| 7437799 | Cleaner head for a vacuum cleaner The invention provides a cleaner head (50;90;130;180) for a vacuum cleaner comprising a housing (52;92;132;182), a suction opening (60;100;142;184) in a face (58;96;136;186) of the housing which is intended to face a floor surface, a suct... | 10/21/2008 |
| 7425225 | Exhaust assembly An exhaust assembly for an appliance includes a filter housing for retaining a filter and an exhaust duct which receives airflow from the filter housing. One or more vanes are positioned in the filter housing for guiding airflow from the exhaust side of the filter t... | 09/16/2008 |
| 7383607 | Agitation apparatus An agitation apparatus which is suitable for use in a cleaning head of a vacuum cleaner includes first and second flow paths. Each of these flow paths has a resonant cavity and an inlet/outlet port which joins the cavity to a space within the cleaning head. A genera... | 06/10/2008 |
| 7350267 | Wand assembly for a domestic appliance A wand for a domestic appliance (e.g., vacuum cleaner) includes a plurality of tubes which are dimensioned to telescope inside one another. Each tube is associated with a securing mechanism for securing the tube in an extended position with respect to another of the... | 04/01/2008 |
| 7291190 | Cyclonic separating apparatus A cyclonic separating apparatus includes at least one cyclone having a first end, a second end a longitudinal axis. An inlet is located at the first end for introducing a fluid flow into the cyclone, and a cone opening is located at the second end. At least part of ... | 11/06/2007 |
| 7278181 | Vacuum cleaner with air bleed A vacuum cleaner comprises a cyclonic separator (116) for separating dirt and dust from an incoming airflow. A tool (300) and a suction conduit (114) connect the tool (300) to the separator (116). The tool (300) comprises a ... | 10/09/2007 |
| 7258714 | Filter housing A filter housing includes an inlet for receiving airflow, a cavity for receiving a filter and an airflow passage between the inlet and the filter. At least one vane is positioned in the airflow passage for partitioning the airflow passage into a plurality of ducts. ... | 08/21/2007 |
| 7197901 | Washing machine The invention provides an apparatus comprising a drum for containing and agitating an article, wherein the drum comprises at least two rotatable portions in rotatable connection with one another, a rotator member in connection with each rotatable portion for rotatin... | 04/03/2007 |
| 7197783 | Appliance having a driving mechanism An appliance having a driving mechanism is provided, the appliance (10) comprising two rotatable portions (32, 34) which are rotatable by the driving mechanism (50) about an axis (40). The driving mechanism (50) comprises a gearbox... | 04/03/2007 |
| 7191484 | Laundry appliance A laundry appliance comprises a drum for receiving a load of articles. The drum comprises at least two rotatable drum portions and a drive which is capable of rotating the drum so as to cause relative rotation between the drum portions. A controller monitors and con... | 03/20/2007 |
| 7186283 | Vacuum cleaner A cyclonic vacuum cleaner includes a separating unit for separating dirt and dust from a dirt-laden airflow which is drawn in by the cleaner. The separating unit has a chamber with a collection area for collecting dirt and dust which is separated from the airflow. A... | 03/06/2007 |
| 7168128 | Wand assembly for a domestic appliance A wand for a domestic appliance (e.g., a vacuum cleaner) includes a plurality of tubes which are dimensioned to telescope inside one another. Each tube is associated with a securing mechanism for securing the tube in an extended position with respect to another of t... | 01/30/2007 |
| 7146669 | Method of operating a domestic appliance A method of rinsing a wash load in a washing machine having a perforated drum which is rotatable about an axis and capable of receiving the wash load and having a water inlet which is capable of introducing water to the interior of the rotatable drum includes the st... | 12/12/2006 |
| 7069620 | Floor tool A floor tool for use in vacuum cleaning floor surfaces includes a sole plate that has a suction channel formed in it. The suction channel is bounded on at least one side by a working edge for engaging with the floor surface. Lint pickers are positioned alongside the... | 07/04/2006 |
| 6993807 | Floor cleaning apparatus including dispenser for dispensing particulate cleaning material A dispenser for dispensing particulate cleaning material onto a floor surface includes a hopper holding the particulate material and a dispensing aperture extending across the hopper through which the material may be dispensed. A separator, which may for example be ... | 02/07/2006 |
