Abstract: A hand-guide cyclone vacuum cleaner includes: a device body which has a drive unit for generating a suction air flow; a suction container, which is connected to the device body, for receiving suction material; and an operating element arranged at one end of the suction container opposite an end of the suction container on which the device body is arranged. The operating element is rotatable from a first position into a second position and from the second position into the first position. The device body is inseparably connected to the suction container in the first position. The device body is separably connected to the suction container in the second position.

Abstract: A hand-guide cyclone vacuum cleaner includes: a device body which has a drive unit for generating a suction air flow; a suction container, which is connected to the device body, for receiving suction material; and an operating element arranged at one end of the suction container opposite an end of the suction container on which the device body is arranged. The operating element is rotatable from a first position into a second position and from the second position into the first position. The device body is inseparably connected to the suction container in the first position. The device body is separably connected to the suction container in the second position.

Abstract: A floor-type vacuum cleaner includes a housing and rollers attached to the housing that are configured to provide movement of the housing. Each roller is disposed on a roller axle so as to be rotatable. At least one of the rollers includes a rigid hub and an air-filled, rubber, resilient, damping tire. Alternatively, at least one of the rollers has a damping property and includes alternating concentric layers of rigid and flexible components, with air being disposed between at least one of the rigid components and at least one of the flexible components.

Abstract: Diaphragm valve (1) comprising a housing upper part (2), which receives an actuating device (4) for actuating the valve (1), and a housing lower part (3), which has a receiving region (9) for receiving a diaphragm (11), wherein in the housing lower part (3) below the diaphragm (11) a central region forming a flow channel (17) is designed, wherein the cross-sectional surface of the flow channel (17) in the central region (51) of the housing lower part (3) is constant when the valve (1) is in the open state.

Abstract: Diaphragm valve (1) comprising a housing upper part (2), which receives an actuating device (4) for actuating the valve (1), and a housing lower part (3), which has a receiving region (9) for receiving a diaphragm (11), wherein in the housing lower part (3) below the diaphragm (11) a central region forming a flow channel (17) is designed, wherein the cross-sectional surface of the flow channel (17) in the central region (51) of the housing lower part (3) is constant when the valve (1) is in the open state.

Abstract: A floor-type vacuum cleaner includes a housing and rollers attached to the housing that are configured to provide movement of the housing. Each roller is disposed on a roller axle so as to be rotatable. At least one of the rollers includes a rigid hub and an air-filled, rubber, resilient, damping tire. Alternatively, at least one of the rollers has a damping property and includes alternating concentric layers of rigid and flexible components, with air being disposed between at least one of the rigid components and at least one of the flexible components.