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 vacuum cleaner nozzle for floors and carpets having a housing comprised of an upper part and a slide sole, a pivotable rocker located in the housing on a rear segment in working direction and an actuating lever to operate the rocker. Strip-shaped gasket elements are attached to the rocker, which are arranged in working direction in front of and behind a suction port formed into the slide sole and can be retracted and moved out of openings on the lower side of the housing with a pivoting movement of the rocker.

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 vacuum cleaner nozzle has a housing with a plastic upper part, a slide sole and a gasket base pivotably arranged around an axis in the upper part of the housing. There is at least one strip-shaped gasket element that can be retracted and moved out with an adjusting movement of the gasket base at the lower side of the nozzle. The slide sole is fastened to the upper part of the housing with slip joints between pivot-shaped projections on the upper part and counter-elements formed on the slide sole. The gasket base is guided on at least one of the pivots formed by slip joints.

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: A front brush attachment device for a vacuum cleaner comprises a multi-component housing, a rotationally driven brush roller, and a rotating and tilting joint for connecting the vacuum cleaner. The rotating and tilting joint has a tilting joint piece inserted in a suction duct of the housing, as well as a short, rotatable joint tube, which is connected with the tilting joint piece in a rotating manner. The tilting joint piece is supported in the housing in a manner permitting it to revolve about an axle aligned transversely in relation to the suction duct. The short, rotatable joint tube is mounted on a cylindrical connector piece with rotational mobility. A protrusion on the housing and a recess on the rotatable joint tube engage each other in the locking position and secure the short, rotatable joint tube against rotation. A spring-loaded locking lever is supported on the housing, which, in the locking position, engages a shoulder located on the periphery of the tilting joint piece.

Abstract: A vacuum cleaner nozzle has a housing with a plastic upper part, a slide sole and a gasket base pivotably arranged around an axis in the upper part of the housing. There is at least one strip-shaped gasket element that can be retracted and moved out with an adjusting movement of the gasket base at the lower side of the nozzle. The slide sole is fastened to the upper part of the housing with slip joints between pivot-shaped projections on the upper part and counter-elements formed on the slide sole. The gasket base is guided on at least one of the pivots formed by slip joints.

Abstract: A vacuum cleaner nozzle for floors and carpets having a housing comprised of an upper part and a slide sole, a pivotable rocker located in the housing on a rear segment in working direction and an actuating lever to operate the rocker. Strip-shaped gasket elements are attached to the rocker, which are arranged in working direction in front of and behind a suction port formed into the slide sole and can be retracted and moved out of openings on the lower side of the housing with a pivoting movement of the rocker.

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 front brush attachment device for a vacuum cleaner comprises a multi-component housing, a rotationally driven brush roller, and a rotating and tilting joint for connecting the vacuum cleaner. The rotating and tilting joint has a tilting joint piece inserted in a suction duct of the housing, as well as a short, rotatable joint tube, which is connected with the tilting joint piece in a rotating manner. The tilting joint piece is supported in the housing in a manner permitting it to revolve about an axle aligned transversely in relation to the suction duct. The short, rotatable joint tube is mounted on a cylindrical connector piece with rotational mobility. A protrusion on the housing and a recess on the rotatable joint tube engage each other in the locking position and secure the short, rotatable joint tube against rotation. A spring-loaded locking lever is supported on the housing, which, in the locking position, engages a shoulder located on the periphery of the tilting joint piece.

Abstract: A brush attachment for vacuum cleaners comprises a housing consisting of a bottom part and a top part, a turbine wheel driven by the suction air stream, a brush roller driven by the turbine wheel, and a suction tube connection constructed in the form of a swivel/tilting joint. The brush roller is disposed in a brush roller chamber which has a bottom opening constructed as a suction orifice. The turbine wheel is disposed in a turbine chamber with a connection duct of the swivel/tilting joint. The duct is pivotable about the turbine wheel. The bottom part of the housing has webs which form the back wall of the brush roller chamber and the side walls of the turbine chamber and define a flow chamber. A nozzle made as a separate part is inserted in the flow chamber and contains an incident flow duct for alignment of the suction air stream flowing against the turbine wheel. The top part of the housing has connection webs which bear against the webs and against the top of the nozzle.

Abstract: An electrical-connector shell is made by first casting of a first plastic in a first mold a body having an inner wall extending parallel to an axis and having a radially outwardly directed surface, an outer wall extending parallel to the axis and having a radially inwardly directed surface confronting the radially outwardly directed surface and forming therewith an axially extending annular space, and an end wall closing an end of the space, joining ends of the inner and outer walls, and formed with an axially throughgoing hole opening adjacent one of the surfaces. Then this body is enclosed in a second mold formed with an annular cavity open radially toward the one surface and extending to the hole. A second plastic is then injected through the hole into the cavity to form on the one surface an annular seal ring.