Abstract: A cyclone separation device includes a cyclone chamber for separating dirt from incoming air, a dirt collecting chamber arranged adjacent to the cyclone chamber for collecting dirt particles separated from air, and a dirt duct between the cyclone chamber and the dirt collecting chamber for allowing dirt particles to exit the cyclone chamber into the dirt collecting chamber. To reduce the generation of noise-generating air vortices, the dirt duct has an edge protruding into a direction at an angle to the dirt duct at an exit ridge of the cyclone chamber that is first encountered by the air rotating in the cyclone chamber. Preferably, the edge is formed by a tangential extension of a wall of the cyclone chamber. A vacuum cleaner advantageously includes such a cyclone separation device.

Abstract: A noise reduction device includes a main tube having a first pass-through area where a fluid enters the main tube, and a side-branch connected to the main tube. The main tube includes a narrowed section having a second pass-through area that is at least 25% (preferably, at least 50%, and more preferably, at least 60%) smaller than the first pass-through area, and the side-branch is connected to the narrowed section of the main tube. Where the side-branch is connected to the main tube, the side-branch is preferably sealed-off by a cover that is acoustically transparent, which may be impermeable for the fluid. Such a noise reduction device is advantageously used in a fluid displacing appliance (e.g. a vacuum cleaner), including a motor for displacing the fluid (e.g. gas or liquid).

Abstract: A housing (e.g. a vacuum cleaner) includes a fan aggregate having a part in which a fan is mounted, and a motor mounted at a first side of the part. An elastic suspension is mounted at a second side, opposite to the first side, of the part, for coupling a fan inlet or outlet to the housing. A clamp mechanism is provided for pressing the fan aggregate towards the housing. One end of the clamp mechanism is attached to the housing and is at the same side of the fan aggregate as the elastic suspension, and another end of the clamp mechanism is attached to the fan aggregate and is at a position of the part or at a position of the motor, near a center of mass of the fan aggregate.

Abstract: A cyclone separation device includes a cyclone chamber for separating dirt from incoming air, a dirt collecting chamber arranged adjacent to the cyclone chamber for collecting dirt particles separated from air, and a dirt duct between the cyclone chamber and the dirt collecting chamber for allowing dirt particles to exit the cyclone chamber into the dirt collecting chamber. To reduce the generation of noise-generating air vortices, the dirt duct has an edge protruding into a direction at an angle to the dirt duct at an exit ridge of the cyclone chamber that is first encountered by the air rotating in the cyclone chamber. Preferably, the edge is formed by a tangential extension of a wall of the cyclone chamber. A vacuum cleaner advantageously includes such a cyclone separation device.

Abstract: A device (10) for mounting a motor assembly of an electric appliance such as a vacuum cleaner in a housing (2) of the appliance comprises a resilient mounting body (11) which is intended for arrangement between the motor assembly and the housing (2). An inner peripheral portion (12) of the mounting body (11) comprises a first motor contacting portion (13), a second motor contacting portion (14) being provided with axial motor support components (19), and a connection portion (15) interconnecting the motor contacting portions (13, 14). A radial stiffness of the first motor contacting portion (13) is lower than a radial stiffness of the connection portion (15), so that the extent to which vibrations of the motor assembly are coupled into the mounting body (11) at the position of contact to the first motor contacting portion (13) can be at a minimum.

Abstract: The present invention relates to a cyclone separation device for separating particles from air and a cyclone vacuum cleaner (80). It has the objective to reduce noise without impairing the dirt separation performance. This is achieved an arrangement comprising a cyclone chamber (10), a dirt collecting chamber (50) arranged adjacent to the cyclone chamber (10) for collecting dirt particles separated from air, a dirt-duct (40) between the cyclone chamber (10) and the dirt collecting chamber (50) for allowing dirt particles to pass from the cyclone chamber (10) towards the dirt collecting chamber (50), and an air-guide (60) arranged adjacent to the dirt-duct (40) for reducing the momentum of the air in the dirt-duct (40).

Abstract: The present invention relates to a teat for a feeding bottle. The teat has an outer wall (18) and a plurality of recesses (25) formed in an outer wall (18). The plurality of recesses (25) extend in a circumferential arrangement around a longitudinal axis of the teat. The present invention also relates to a teat with an outer wall (5, 46, 66). The outer wall has a region of reduced wall thickness (7, 47, 67, 84) extending in a circumferential band around a longitudinal axis of the teat.

Abstract: The present invention relates to an exhaust grille (10, 20, 30, 40). The exhaust grille comprises an array comprising an array of spaced vanes (15) which define a plurality of separate non-linear air flow passages (14) through the grille. The grill is configured so as to deflect sound waves incident upon the grille to prevent them from passing through the passages. Various configurations of exhaust grille are disclosed, and the exhaust grille configuration reduces the noise levels permitted to pass through the grille, for example when placed over an exhaust (2), such as over the exhaust outlet of a vacuum cleaner.

Abstract: The present invention relates to an exhaust grille (10, 20, 30, 40). The exhaust grille comprises an array comprising an array of spaced vanes (15) which define a plurality of separate non-linear air flow passages (14) through the grille. The grill is configured so as to deflect sound waves incident upon the grille to prevent them from passing through the passages. Various configurations of exhaust grille are disclosed, and the exhaust grille configuration reduces the noise levels permitted to pass through the grille, for example when placed over an exhaust (2), such as over the exhaust outlet of a vacuum cleaner.

Abstract: The present invention relates to a cyclone separation device for separating particles from air and a cyclone vacuum cleaner (80). It has the objective to reduce noise without impairing the dirt separation performance. This is achieved an arrangement comprising a cyclone chamber (10), a dirt collecting chamber (50) arranged adjacent to the cyclone chamber (10) for collecting dirt particles separated from air, a dirt-duct (40) between the cyclone chamber (10) and the dirt collecting chamber (50) for allowing dirt particles to pass from the cyclone chamber (10) towards the dirt collecting chamber (50), and an air- guide (60) arranged adjacent to the dirt-duct (40) for reducing the momentum of the air in the dirt-duct (40).

Abstract: In a cleaning device, a head of the device in which a brush is arranged, can get contaminated by particles and/or droplets picked up by the brush during one or more cleaning actions. In order to clean the head, the cleaning device is placed on a tray filled with an amount of cleaning liquid, and the cleaning device is operated for a period of time. During that time, the head is flushed with the cleaning liquid, where the brush serves for picking up the liquid from the tray and releasing the liquid in the direction of components of the head. The tray has an elevated portion, and the brush is positioned on that elevated portion to allow for gradual wetting of the brush.

Abstract: The present invention relates to a teat for a feeding bottle. The teat has an outer wall (18) and a plurality of recesses (25) formed in an outer wall (18). The plurality of recesses (25) extend in a circumferential arrangement around a longitudinal axis of the teat. The present invention also relates to a teat with an outer wall (5, 46, 66). The outer wall has a region of reduced wall thickness (7, 47, 67, 84) extending in a circumferential band around a longitudinal axis of the teat.

Abstract: In a cleaning device (2), a head (21) of the device (2), in which a brush (22, 23) is arranged, can get contaminated by particles and/or droplets picked up by the brush (22, 23) during one or more cleaning actions. In order to clean the head (21), the cleaning device (2) is placed on a tray (1), the tray (1) is filled with an amount of cleaning liquid, and the cleaning device (2) is operated for a period of time. During that time, the head (21) is flushed with the cleaning liquid, wherein the brush (22, 23) serves for picking up the liquid from the tray (1) and releasing the liquid in the direction of components of the head (21). The tray (1) comprises an elevated portion (3), and the brush (22, 23) is positioned on that portion (3), whereby it is achieved that the brush (22, 23) is gradually wetted.