Patent ID: 8015660
Filing Date: 2011-09-13
Classification: A47L

Abstract:
1. A vacuuming device comprising: a housing having an air intake and at least one air outlet opening; a suction motor arranged in the housing; at least two filters arranged in the housing and each having a flow passage to the suction motor, wherein dirty air sucked into the housing by the suction motor passes through the at least two filters and exits through the at least one air outlet opening; wherein the at least two filters each are provided with a cleaning device and a valve device adapted to close off the flow passage to the suction motor, respectively, as needed; wherein the flow passages each comprise a flow chamber and a flow channel arranged downstream of the flow chamber, wherein the flow channel is in flow communication with the suction motor; wherein the valve devices each comprise a moveable plunger provided with a valve element and a sealing element, the valve element and the sealing element fixedly connected to the plunger; wherein the flow chamber has a first wall with a first opening and has a second wall with a connecting opening that is opposite the first opening and that connects the flow chamber to the flow channel, wherein the plunger passes through the first opening and the connecting opening; wherein the plunger has a first end position and a second end position and is moved by a single stroke from the first to the second end position and the second to the first end position; wherein in the first end position the plunger seals the first opening in the first wall with the sealing element while the connecting opening is open; wherein in the second end position the plunger closes off the connecting opening with the valve element and separates the flow chamber from the flow channel, while the first opening is open.