Patent EP-2098486-A1 (EP)
Inventor: FREIGEBER JUERGEN
IPC: C02F1/66
Filed: 2009-02-27
Abstract: The device comprises a processing chamber for receiving a flowable liquid treatment agent, which is present in a container (1) having a bottom (2), side walls, a liquid inlet (9) and a liquid outlet (10), an intermediate vessel (11) for receiving the liquid running through the liquid inlet, a storage container for the treatment agent, a dosing device arranged to the storage container and intended for periodically discharging the treatment agent from the storage container into the processing chamber, a reservoir upstream to the storage container, and a tub for receiving the treatment agent. The device comprises a processing chamber for receiving a flowable liquid treatment agent, which is present in a container (1) having a bottom (2), side walls, a liquid inlet (9) and a liquid outlet (10), an intermediate vessel (11) for receiving the liquid running through the liquid inlet, a storage container for the treatment agent, a dosing device arranged to the storage container and intended for periodically discharging the treatment agent from the storage container into the processing chamber, a reservoir upstream to the storage container, and a tub for receiving the treatment agent to be periodically discharged. The intermediate vessel is arranged to a distance above the container bottom, is pivotable around an axis, is periodically emptied into the container, and is pivotably mounted for partially emptying in its emptying position as a result of gravitational forces in dependent of its filling grade. The dosing device is operatable as a function of the swivelling movements of the vessel, and is a pumping unit having a piston-cylinder pump. The pumping unit has a stationary cylinder for the treatment agent. The lifting movement of the piston is controllable as a function of the swivelling movements of the intermediate vessel. A control element acts on the vessel on one side and acts on the pumping unit on the other side, and is a connecting rod, which is connectable to the intermediate vessel outside of its pivoting axis in different positions and is connected to a translationally movable frame acting on the piston. The cylinder is mounted in the storage container. An inlet opening is positioned in a wall of the cylinder, so that it is closed during pump lifting the piston. A pipe is connected to the cylinder and flows out above the vessel. A retaining trough is arranged in the vessel and is intended for the treatment agent supplied by the pipe, so that the supplied treatment agent is temporarily stored in the retaining trough during emptying the vessel. The treatment agent is refillable in the storage container from the reservoir in dependent of the filling grade of the storage container. The tub is spatially arranged to the intermediate vessel, so that the tub is emptied during emptying the vessel and the vessel tilts towards the tub during emptying and delivers its content into the tub. The replaceable or refillable storage container has a container discharge opening with the dosing device. A counterweight is attached to the vessel for pivoting back the vessel from its emptying position into its liquid-receiving position.