Abstract: A self-propelled vacuum-cleaning device for cleaning smooth and textile floor coverings, particularly in the private home sector. The device has a housing, a vacuum blower, an electrically driven cleaning roller, an electrical drive mechanism, control electronics, and a power source. The maximal electric power of the self-propelled vacuum-cleaning tool lies between 150 watts and 300 watts during cleaning operation, whereby between 120 watts and 220 watts are allocated to the vacuum blower, between 10 watts and 40 watts are allocated to the electrical roller drive for the cleaning roller, and between 5 watts and 40 watts are allocated to the drive mechanism, and whereby the control electronics have a power demand of less than 5% of the maximal electric power.

Abstract: A power-brush attachment usable in combination with a line-voltage source and with a vacuum-cleaner suction intake has a housing having a lower wall formed with an opening and a connection—suction tube and/or hose—on the housing engageable with the suction intake. The housing has a passage extending between the connection and the opening for drawing particles in the opening. A rotary brush in the housing is exposed in the opening and engageable therethrough with a floor underneath the housing. A low-voltage electric motor is connected to the brush for rotating same. A low-voltage power source, typically a battery, in the housing is also connectable to the motor for powering same without connection to the line-voltage same. A power converter and electrical line are connectable between the line-voltage source and the electric motor for powering the motor from the line-voltage source.

Abstract: A suction nozzle for a vacuum cleaner has a housing, a vacuum mouth disposed on the floor side in the housing, a cleaning roller mounted to rotate in the housing and driven by an electric motor, and a rechargeable battery unit for the energy supply of the electric motor. Via a rear connecting piece, the suction nozzle can be connected to a suction tube or a suction hose of a vacuum cleaner. The electric motor has a rated power of between 50 and watts, and the rechargeable battery unit has an energy density, relative to its total volume, of more than 200 watt-hours per liter (Wh/L).

Abstract: An electric vacuum head for a vacuum cleaner has a housing, a cleaning device that can be driven by an electric motor disposed within the housing in a motor chamber, a vacuum mouth on the underside of the housing delimited by vacuum mouth edges, and a vacuum connector. The motor chamber has at least one air entry opening for entry of air to cool the electric motor, and at least one air exit opening. The air exit opening is disposed on the underside of the housing so that the cooling air that exits from the air exit opening during operation of the electric vacuum head enters into the vacuum mouth by way of at least one of the vacuum mouth edges.

Abstract: A compact vacuum cleaning device for automatic cleaning of smooth and textile floor coverings, particularly in the private home sector, has a housing, a suction mouth on the underside of the housing, a cleaning roller disposed in a roller chamber, a dust collection container, a suction fan, an electrical travel drive, control electronics, and a power source. The device height of the vacuum cleaning device is less than 180 mm. The maximal suction air stream that enters through the suction mouth, passes through the dust collection container, and leaves the vacuum cleaning device through the suction fan, is greater than 15 l/s. The maximal suction power is greater than 10 W.

Abstract: A self-propelled vacuum-cleaning device for cleaning smooth and textile floor coverings, particularly in the private home sector. The device has a housing, a vacuum blower, an electrically driven cleaning roller, an electrical drive mechanism, control electronics, and a power source. The maximal electric power of the self-propelled vacuum-cleaning tool lies between 150 watts and 300 watts during cleaning operation, whereby between 120 watts and 220 watts are allocated to the vacuum blower, between 10 watts and 40 watts are allocated to the electrical roller drive for the cleaning roller, and between 5 watts and 40 watts are allocated to the drive mechanism, and whereby the control electronics have a power demand of less than 5% of the maximal electric power.

Abstract: A floor nozzle for vacuum cleaners has a first position for vacuuming broad floor surfaces, and a second position for vacuuming narrow floor surfaces. The floor nozzle includes a suction head that has a base area with two broad sides and two narrow sides, and a tilt joint consisting of a channel connector piece molded onto the suction head and a pivotable channel section. A pipe elbow having a curvature of essentially 90° is connected with the channel section and has a connector end for a suction pipe. The channel section is pivoted out in the first position, so that the axis of rotation of the connection between the pipe elbow and the channel section is oriented at a downward slant. In the second position, the movable channel section is pivoted into the channel connector piece so far that the axis of rotation of the connection is oriented horizontally.

Abstract: An electric vacuum brush for vacuum cleaners has a vacuum head having a brush roller chamber through which suction air can flow, and a roller brush mounted to rotate in the brush roller chamber and driven by an electric motor. The vacuum head has a working width that is measured at the outside edges, crosswise to the working direction. The brush roller chamber has an opening at the bottom, delimited by parallel vacuum motor edges, which extends essentially over the working width of the brush roller chamber. The electric motor has a power consumption, measured at motor angle, of a maximum of 80 watts, and the vacuum head has a working width of more than 320 mm.

Abstract: A vacuum-cleaner floor head has a base plate formed with an elongated mouth through which air is aspirated, a frame vertically displaceable between a lower position and an upper position, and a plastic tube carried on the frame, engaging a floor underneath the head in the lower position, and clear of the floor in the upper position. The plastic tube is elastomerically compressible, surrounds the mouth, and is sufficiently firm to support the head off the floor without substantial deformation during normal back and forth stroking of the head on the floor in the lower position of the frame. The plastic tube has at least to a front side of the mouth a profiled lower surface formed with a plurality of alternating ridges and hollows so that in the lower position the ridges engage the floor and air can be aspirated through the hollows between the floor and the strip.

Abstract: A suction head for a vacuum cleaning devices comprising an electrically operated brush roller and a lighting system for illuminating the working field. The lighting system contains a plurality of ultra-bright light-emitting diodes.

Abstract: A suction head for a vacuum cleaning devices comprising an electrically operated brush roller and a lighting system for illuminating the working field. The lighting system contains a plurality of ultra-bright light-emitting diodes.

Abstract: A vacuum-cleaner floor head has a base plate formed with an elongated mouth through which air is aspirated, a frame vertically displaceable between a lower position and an upper position, and a seal strip carried on the frame, engaging a floor underneath the head in the lower position, and clear of the floor in the upper position. The strip is elastomerically compressible, surrounds the mouth, and is sufficiently firm to support the head off the floor without substantial deformation during normal back and forth stroking of the head on the floor in the lower position of the frame. The strip has at least to a front side of the mouth a profiled lower surface formed with a plurality of alternating ridges and hollows so that in the lower position the ridges engage the floor and air can be aspirated through the hollows between the floor and the strip.

Abstract: A suction head for floor vacuum cleaners has a unitary plastic housing (1) containing a suction channel (2), and a bottom plate (7) arranged on the underside of the housing and having a suction mouth (13). The suction mouth adjoins a vertically aligned, box-shaped connection element (14) of the suction channel and feeds into a bottom channel (15) of the bottom plate (7). The bottom plate (7) is pivot-mounted both on the connection element (14) of the suction channel and also at the end side on the inner surfaces of the plastic housing (1). For this purpose, the box-shaped connection element (14) contains transverse bridges (17) that define the suction channel laterally and which have bottom edges designed as bearing surfaces (18) rounded in a curved manner. The bottom plate (7) is supported on the curved, rounded support surfaces (18) of the connection element (14), and rotatably interlocked with the wall surfaces of the connection element (14) extending parallel with the transverse bridges.

Abstract: A vacuum-cleaner nozzle has a housing forming a turbine compartment and a brush compartment and having opening into the turbine compartment an outlet adapted for connection to a fan input and a slot opening into the brush compartment. A brush rotatable in the brush compartment has bristles projecting from the slot. A turbine in the turbine compartment is oriented such that air flow from the slot to the outlet rotates the turbine. A drive or transmission couples the turbine to the brush for rotating the brush when the turbine rotates. A button is displaceable on the housing between an outer position and an inner position and a spring urges the button into the outer position. A link between the button and the drive arrests rotation of the brush on displacement of the button into the outer position. This button is remote from the slot and the housing is formed with a handle adapted to be held by a hand of a user.