Patent ID: 8252180
Filing Date: 2012-08-28
Classification: A47J,B01D,C02F

Abstract:
1. In a tank for water-carrying appliances having a filter cartridge, a tank side filter connection, a tank outlet and a means for generating a vacuum and a suction connection to the tank outlet wherein the improvement comprises a tank outlet having a tank-side portion of a divided blending device and sealing surface ( 60 , 65 , 136 . 1 , 160 , 165 , 336 . 1 , 360 , 365 ) with at least one blending port disposed on the tank outlet communicating directly or via a secondary filter stage to connect the tank interior to the tank outlet, said tank outlet accommodating a filter cartridge with a filter side connection element ( 2 ) having a filter side portion of the divided blending device and sealing surface having at least one blending port portion disposed in the sealing surface to connect the tank-side portion of the divided blending device with the filter side portion of the divided blending device to blend unfiltered water or water filtered via a secondary stage filter with water filtered through the filter cartridge wherein the tank outlet or a connection piece of the tank outlet and filter cartridge have a coding structure for selectively operating said blending device.