Abstract: A heatable high pressure cleaning appliance is provided with an undercarriage and a housing lower part, arranged on the undercarriage, in which a motor and a pump driven by the motor for pressurizing water are arranged, and with a fuel-operated heat exchanger for heating the water and a fuel tank for storing liquid fuel for the heat exchanger. In order to further develop the heatable high pressure cleaning appliance in such a way that it has a high mechanical stability and is producible in a cost-effective manner, it is proposed that the fuel tank is configured as a one-piece plastic hollow body, which forms the housing lower part and is held on a rigid support frame, wherein the support frame forms a shock protector that at least partially surrounds the fuel tank in the circumferential direction.

Abstract: A method is provided for operating a suction device that includes a suction unit and a removable filtering device. The suction unit generates a suction flow that flows through the filtering device when arranged on the suction device, in which, after the suction unit is started up, a check is performed of whether the filtering device is present, and if detected as not present, the suction unit is switched off. An evaluation unit uses check data to determine whether a switch-off signal is to be generated for the suction unit. The evaluation unit uses an algorithm or a table to arrive at a decision on switching off the suction unit based on the check data. The table contains at least one threshold value or the algorithm defines at least one threshold value, wherein the at least one threshold value is a threshold value for switching off the suction unit.

Abstract: The present invention relates to a device for producing high-strength CO2 pellets from CO2 snow, in particular, for a cleaning device for blasting surfaces to be treated with a mixed-flow consisting of a compressed gas and CO2 pellets, including a main compressing device for compressing CO2 snow for forming CO2 pellets, further including a pre-compressing device for pre-compressing CO2 snow produced by expanding liquid CO2, wherein the pre-compressing device is in the form of a fluid-mechanical pre-compressing device, wherein the pre-compressing device includes an expansion device for producing CO2 snow from liquid or gaseous CO2 and a pre-compression chamber for receiving and pre-compressing the produced CO2 snow and wherein the expansion device and the pre-compression chamber are connected to one another in fluidic manner.

Abstract: A surface cleaning machine is provided, including a cleaning head having at least one driven cleaning roller unit, a dirty fluid reservoir device arranged on the cleaning head, and a scraping guide device for dirty fluid that acts on the at least one cleaning roller unit, wherein the dirty fluid reservoir device has a container device for dirty fluid and a cover device for the container device, wherein a duct device for cleaning liquid is arranged on the cover device, and wherein there is arranged on the cover device an orifice device which is fluidically connected to the duct device and by means of which cleaning liquid is applicable to the at least one cleaning roller unit.

Abstract: A cleaning machine is provided, including at least one cleaning roller, a roller housing having a roller receptacle for the at least one cleaning roller, wherein the at least one cleaning roller is exchangeably positioned on the roller housing and the roller receptacle has an opening to the outside, a lid for closing the opening, and a locking device for fixing the lid to the roller housing, wherein at least one convex holding body is arranged on the roller housing, in that a pivotable bracket is arranged on the lid, in that at least one receptacle for the at least one holding body is arranged on the pivotable bracket, and wherein a release position of the pivotable bracket, the at least one holding body can dip into and/or exit the associated receptacle, and in a locking position, an exit of the holding body from the associated receptacle is blocked.

Abstract: A floor cleaning machine is provided, in particular a hand-guided and/or hand-held floor cleaning machine, including a support device, at least one cleaning roller arranged on the support device, capable of being driven in rotation and provided with a cleaning substrate, said cleaning substrate being made of a textile material; and at least one mouth towards the at least one cleaning roller that includes a first and a spaced second mouth wall having a mouth opening therebetween, wherein the first mouth wall is positioned above the second mouth wall relative to the direction of gravity, wherein the first and/or second mouth wall protrude(s) into the cleaning substrate of the at least one cleaning roller.

Abstract: The present invention relates to a electrical energy storage device for an electrical appliance, which electrical energy storage device includes a housing, which housing defines a receiving space in which at least one electrical energy store is received, which electrical energy storage device includes at least two electrically conductive contacts which are accessible from an outer side of the housing and which are electrically operatively connected directly or indirectly to the at least one electrical energy store, wherein the housing has at least one contact opening, through which the at least two contacts are accessible or protrude from the housing, and wherein the at least one contact opening is surrounded by a continuous sealing element.

Abstract: A window-cleaning robot that includes: a powered agitator that, when active, mechanically removes debris from a window surface; a cleaning pad, which is wetted with a cleaning fluid and contacts the window surface so as to remove debris therefrom with the aid of the cleaning fluid; and a movement system, for example including a number of wheels, which moves the robot over the window surface and has a defined forwards direction; the agitator is located forwards of the cleaning pad and the agitator and the cleaning pad are arranged such that, as the robot moves over the window surface in the forwards direction, the agitator addresses a width in a width direction, which is perpendicular to the forwards direction and parallel to the window surface, that is greater than the width addressed by the cleaning pad.

Abstract: The present invention relates to a floor treatment system, comprising a mobile floor treatment apparatus and a docking station therefor, wherein the floor treatment apparatus comprises a control device, at least one control line coupled thereto, and an electrical energy storage device for supplying energy to the floor treatment apparatus, and the docking station comprises at least one actuator and at least one control line coupled thereto; wherein, when the floor treatment apparatus is in a docked position on the docking station, the control lines are coupled to one another in contact-based manner by way of control line connection elements, wherein the floor treatment system comprises a detection device for determining whether the floor treatment apparatus is in the docked position, and wherein, if this is determined positively, at least one of the actuators of the control device is actuatable or controllable by way of the control lines.

Abstract: The invention relates to a floor treatment system, comprising a mobile floor treatment apparatus and a docking station therefor, wherein the floor treatment apparatus has at least one liquid container with a container wall and a container interior, as well as at least one liquid conduit for providing a liquid for the container interior; wherein the docking station comprises a supply conduit which, in a docked position of the floor treatment apparatus on the docking station, is in fluidic connection with the at least one liquid conduit; wherein the floor treatment system comprises an opening device by way of which a wall portion of the container wall is movable, for clearing at least one container opening of the at least one liquid container, into an open position, and in the docked position of the floor treatment apparatus the liquid can exit from the container interior through the container opening.

Abstract: A surface cleaning machine is proposed which includes an appliance body and a cleaning head which is arranged on the appliance body, wherein at least one driven cleaning roller unit is positioned on the cleaning head and a dirty fluid tank device is arranged on the cleaning head, and a drive motor, wherein a scraper guide device which acts on the at least one cleaning roller unit is associated with the at least one cleaning roller unit, wherein the scraper guide device is arranged at an inlet orifice of the dirty fluid tank device, and wherein the scraper guide device is arranged and formed in such a way that dirty fluid is couplable from the at least one cleaning roller unit via the inlet orifice of the dirty fluid tank device into the dirty fluid tank device without a suction fan.

Abstract: The invention relates to a floor treatment system, comprising a mobile floor treatment apparatus and a docking station therefor, wherein the floor treatment apparatus has at least one liquid container with a container wall and a container interior, wherein the docking station comprises at least one supply conduit through which, in a docked position of the floor treatment apparatus on the docking station, a liquid is suppliable to the container interior, wherein the floor treatment system comprises an opening device by way of which a wall portion of the container wall is movable into an open position, for clearing at least one container opening of the at least one liquid container, and in the docked position of the floor treatment apparatus the liquid can exit from the container interior through the container opening, and wherein the wall portion is transferable into the open position by the opening device by moving the floor treatment apparatus from a non-docked position into the docked position.

Abstract: The invention relates to a floor cleaning system, having a mobile floor cleaning apparatus that comprises at least one cleaning unit for cleaning a floor surface, a reservoir for receiving a cleaning liquid, a dirt receiving device for taking up dirty liquid from the floor surface, and a dirty liquid container into which the dirty liquid is transferable; and further having a docking station for the floor cleaning apparatus, which is docked thereto in a docked position; wherein the docking station has at least one supply conduit with a connection element arranged thereon, the floor cleaning apparatus having at least one liquid conduit with a connection element arranged thereon; wherein the floor cleaning apparatus comprises a rinsing device on or in the dirty liquid container; and wherein, when the floor cleaning apparatus is in the docked position, the connection elements are coupled to one another such that the reservoir is fillable with the cleaning liquid via the at least one liquid conduit and a rinsing l