FILTER CARTRIDGE AND A METHOD FOR THE PRODUCTION AND USE THEREOF

摘要

The group of inventions relates to liquid purifying devices and can be used for purifying drinking water and other liquids for household, medical and other purposes. The inventive filter cartridge is filled with a filtering material and is designed in the form of a cylinder which can be closed by a lid, has side walls and a bottom with at least one outlet orifice which is closed with a water-permeable material, wherein the cartridge bottom is designed such as to make it possible to use the water-permeable material which comes to the external edge of the side walls and is made of fibres of a sufficiently small diameter to allow the use of a filtering material containing powder particles; furthermore the entire area between the external and internal edges of the walls along the bottom circumference is made of a polymer water-permeable composite material. The method for producing the filter cartridge involves placing a blank in at least a split mould, cutting it to the exact shape of a piece, filling the shaping cavity of the mould with a molten polymer material and extracting the product from the mould, wherein the cavity of the mould is filled with the molten polymer material after placing the blank therein and the blank is cut up along a cutting area which is formed in the purpose-made region of the mould. The filter element is used in a liquid, substantially drinking water, purifying device.