Abstract: A suction apparatus for cleaning purposes includes a container, a suction subassembly, a filter element arranged in a container interior, and a pumping subassembly, where a mixture of a carrier fluid and particles of dirt can be taken in via a suction inlet and the particles of dirt are restrained by the filter element. The filter element is a filter bag through which the mixture is taken in by the suction subassembly. A filter bag restraining part subdivides the container interior into a filter bag accommodating space and a fluid delivery space, where the filter bag is arranged in the filter bag accommodating space and is prevented, by the filter bag restraining part, from expanding into the fluid delivery space, from which carrier fluid flowing around, or through, the filter bag restraining part is delivered by the pumping subassembly.

Abstract: A suction apparatus for cleaning purposes includes a container, a suction subassembly, a filter element arranged in a container interior, and a pumping subassembly, where a mixture of a carrier fluid and particles of dirt can be taken in via a suction inlet and the particles of dirt are restrained by the filter element. The filter element is a filter bag through which the mixture is taken in by the suction subassembly. A filter bag restraining part subdivides the container interior into a filter bag accommodating space and a fluid delivery space, where the filter bag is arranged in the filter bag accommodating space and is prevented, by the filter bag restraining part, from expanding into the fluid delivery space, from which carrier fluid flowing around, or through, the filter bag restraining part is delivered by the pumping subassembly.

Abstract: A power supply arrangement for a suction device is provided, which is optionally operable using direct current or alternating current, including a first connection connectible to a direct current source, a second connection connectible to an alternating current source, a third connection connectible to a consuming unit of the suction device, an electrically isolated converter connected on the input side to the first connection, and a switchover device connected to an output of the converter, the second connection and to the consuming unit, wherein the switchover device allows selection of whether the consuming unit is actively connected to the converter or the second connection for power supply, and wherein the switchover device has one or more components each with an electrical safety clearance that is at least 4 mm in respect of the creepage distance and the total of the creepage distances of the components is at least 8 mm.

Abstract: A power supply arrangement for a suction device is provided, which is optionally operable using direct current or alternating current, including a first connection connectible to a direct current source, a second connection connectible to an alternating current source, a third connection connectible to a consuming unit of the suction device, an electrically isolated converter connected on the input side to the first connection, and a switchover device connected to an output of the converter, the second connection and to the consuming unit, wherein the switchover device allows selection of whether the consuming unit is actively connected to the converter or the second connection for power supply, and wherein the switchover device has one or more components each with an electrical safety clearance that is at least 4 mm in respect of the creepage distance and the total of the creepage distances of the components is at least 8 mm.

Abstract: The invention relates to a vacuum cleaner comprising a lower housing part, on which wheels are mounted for moving the vacuum cleaner along a floor surface, and which forms a dirt collection container with a suction inlet to which a suction hose is connectable, and an upper housing part which is mountable on the lower housing part and accommodates an electrically drivable suction unit, and an electric supply cable for connecting the suction unit to an electrical voltage source.

Abstract: The invention relates to a vacuum cleaner comprising a lower housing part, on which wheels are mounted for moving the vacuum cleaner along a floor surface, and which forms a dirt collection container with a suction inlet to which a suction hose is connectable, and an upper housing part which is mountable on the lower housing part and accommodates an electrically drivable suction unit, and an electric supply cable for connecting the suction unit to an electrical voltage source.