Abstract: A method for evaluating a particle signal with an evaluation unit associated with a control device includes generating a particle signal by a sensor within a flow element, the particular sensor being dependent on a number of particles in a two-phase flow generated when cleaning a surface by a suction device connected to the flow control element. The method further includes determining in the evaluation unit from the particle signal a control signal for further controlling an actuator controlled by the control device. A speed of movement of the flow element over the surface is taken into account in the determination of the control signal.

Abstract: Use of moldings with length·width·height dimensions respectively in the range from 1 mm to 3 cm as dust binders in vacuum cleaners, where the molding(s) has/have been produced from chemically untreated open-cell foam whose density is in the range from 5 to 500 kg/m3 and whose average pore diameter is in the range from 1 ?m to 1 mm.

Abstract: Use of moldings whose length·width·height dimensions are always in the range from 1 mm to 5 cm, produced by treatment of (a) open-cell foam whose density is in the range from 5 to 500 kg/m3 and whose average pore diameter is in the range from 1 ?m to 1 mm (b) with an aqueous formulation of at least one cationic polymer (c) and a shaping step, as dust binders in vacuum cleaners.

Abstract: A method for operating an attachment device for a vacuum cleaner includes an electrically rotatable brush roller and a motor for driving the brush roller. The method includes rotating the brush roller in a normal operational direction during operation. The method further includes rotating the brush roller in a reverse direction opposite to the normal operational direction of rotation, when the brush roller is detected to be jammed.

Abstract: A suction nozzle for a vacuum cleaner that can be connected to a suction pipe and/or a suction tube of the vacuum cleaner includes a nozzle part that can be connected to the suction pipe or the suction tube by means of a tubular connection part. A dust sensor is arranged in the flow path of the vacuum cleaner, the signals thereof being evaluated by a battery-operated electronic control device that can be activated by a low-pressure switch. During operation, said control device controls a display device displaying the dust flow. The control device, the low-pressure switch, the display elements displaying the dust flow, and a battery compartment for receiving the batteries are arranged in a housing formed on the upper side of the tubular connection part. The dust sensor is arranged beneath the housing, inside the upper region of the connection part, in the dust air stream.

Abstract: A method for operating a vacuum cleaner having a fan, an electronic control system for the fan and/or another load, and a dust chamber for receiving an air-permeable dust bag, includes providing the dust bag with an identifier, and providing the vacuum cleaner with an identifying device associated with the electronic control system and configured to identify the identifier. When the identifier fails to be identified, at least one of the fan and the other load is controlled using the electronic control system so as to reduce at least one parameter associated with an intake of dust into the dust bag.

Abstract: A dishwasher includes a plurality of spray arms, a recirculation pump driven by an electric motor and a water diverter. The water diverter is disposed on a pressure side of the recirculation pump and is operable to generate flow from an inlet to at least one of a plurality of selectable outlets associated with the spray arms. The water diverter includes at least one blocking element, a drive element driven together with the electric motor of the recirculation pump and configured to move the at least one blocking element, and a transmission disposed between the blocking element and the drive element. The transmission is configured to convert a continuous movement of the drive element into a discontinuous movement of the blocking element.

Abstract: A vacuum attachment for a vacuum cleaner including a housing having a vacuum channel. A roller is rotatably and displaceably disposed in a region of the vacuum channel and driveable during a vacuuming operation. The roller includes at least one of bristles and baffle walls configured to be in partial contact with a floor covering during the vacuuming operation. At least one roller magnet is disposed on the roller at least one end thereof. At least one housing magnet is non-rotatably disposed on the housing axially adjacent to the at least one roller magnet and configured to interact with the at least one roller magnet so as to alternately at least one of attract and repel the roller so that the roller performs an oscillatory motion as it rotates.

Abstract: A method for carrying out a dishwashing cycle in a household dishwasher includes performing a wash step and dispensing an amount of a combination product from a dispenser during the wash step. The combination product includes a rinse agent and a cleaning agent. The method also includes performing a rinse step and dispensing an amount of the combination product from the dispenser during the rinse step.

Abstract: Use of moldings whose length width height dimensions are always in the range from 1 mm to 3 cm, at least one dimension being greater than 5.5 mm, produced by treatment of (a) open-cell foam whose density is in the range from 5 to 500 kg/m3 and whose average pore diameter is in the range from 1 ?m to 1 mm (b) with an aqueous formulation of at least one compound having at least one hemiaminal or aminal group per molecule or at least one copolymer containing at least one copolymerized comonomer which contains OH groups or which contains ?-dicarbonyl groups, or which contains epoxy groups, (c) and a shaping step, as dust binders in vacuum cleaners.

Abstract: A device for separating dust from dust-laden air. The device includes a first cyclone separator having an inlet portion with a tangential inlet. An axial inlet cyclone separator is disposed downstream of the first cyclone separator. The axial inlet cyclone separator has an air inlet disposed within the first cyclone separator. The axial air inlet includes a widening tubular section in the shape of a funnel extending into the inlet portion of the first cyclone separator.

Abstract: A method for dispensing a liquid or pasty cleaning agent and a liquid or pasty bleaching agent into a wash tub of a household dishwasher that includes a housing and a dispensing system disposed in the housing. The dispensing system separately stores and discharges the cleaning agent and bleaching agent. The method includes providing the dispensing system with respective reservoirs for each of the cleaning agent and the bleaching agent that have different capacities from each other. Each of the capacities are larger than needed for a single wash cycle. A first quantity of the cleaning agent and a second quantity of the bleaching agent are dispensed during a wash cycle, and the ratio of the dispensed quantities corresponds to the ratio of the capacities of the respective reservoirs.

Abstract: A method for treating dust including: separating, in a vacuum cleaner, the dust into at least two fractions which differ in at least one of a size and a mass of particles of the dust; and adding a dust-binding agent to at least a first of the fraction.

Abstract: A dishwasher includes a housing, a dish rack movably disposed in the housing, and a first and a second roller respectively disposed on opposite sides of the dish rack. The first and second rollers are configured to movably support the dish rack on respective first and second running surfaces. A respective angle of inclination of at least a respective portion of the first and second running surfaces is adjustable so as to enable the dish rack to automatically move outward from the housing.

Abstract: The invention relates to a suction nozzle for a vacuum cleaner, that can be connected to a suction pipe and/or a suction tube of the vacuum cleaner. Said suction nozzle (2) comprises a nozzle part that can be connected to the suction pipe or the suction tube of the vacuum cleaner by means of a tubular connection part (2.2). A dust sensor (11) is arranged in the flow path of the vacuum cleaner, the signals thereof being evaluated by a battery-operated electronic control device that can be activated by a low-pressure switch. During operation, said control device controls a display device (9,16) displaying the dust flow. The control device, the low-pressure switch, the display elements (9,16) displaying the dust flow, and a battery compartment (8) for receiving the batteries are arranged in a housing (7) formed on the upper side of the tubular connection part (2.2). The dust sensor is arranged beneath the housing (7), inside the upper region of the connection part (2.2), in the dust air stream.

Abstract: A method for operating a vacuum cleaner having a fan, an electronic control system for the fan and/or another load, and a dust chamber for receiving an air-permeable dust bag, includes providing the dust bag with an identifier, and providing the vacuum cleaner with an identifying device associated with the electronic control system and configured to identify the identifier. When the identifier fails to be identified, at least one of the fan and the other load is controlled using the electronic control system so as to reduce at least one parameter associated with an intake of dust into the dust bag.