Patent ID: 8778244

Claim:
A method of producing a filtering cartridge, comprising; providing a split mould having a shaping cavity for forming a side wall of the filtering cartridge, said sidewall having an external peripheral surface and a bottom end, said bottom end having an opening; placing a blank in the shaping cavity of said split mould of the cartridge in a position to cover said opening upon formation of the sidewall, wherein the blank is a continuous belt of a water-permeable material; filling a said shaping cavity of the mould with a melted polymer after the step of placing the blank in the cavity of the mould followed by hardening the molten polymer to form the side wall of the cartridge, wherein the polymer of the sidewall alloys with the blank; cutting the blank to a shape that substantially covers the opening in the bottom of the cartridge after the step of hardening the molten polymer, whereby the cut blank extends to an external peripheral surface of the side wall of the cartridge; and extracting the cartridge, from the mould.