FILTER TO CLEAR LIQUID Russian patent published in 1995 - IPC

FIELD: liquid filtering. SUBSTANCE: filter to clear liquid has a casing made in the form of two intercommunicated hollow cylinders, connected through arched section to mesh cartridge , with one cylinder being provided with pipe branch inlet and is filled with poly-dispersed floating grain-type material. Another cylinder is provided with pipe branch outlet and is filled with mono-dispersed material. Distribution device of the filter is made in the form of perforated tubes located in the upper part of any cylinder and is provided with connecting pipeline and bypass pipeline, one end of which is connected with pip[e branch inlet, and the other end with the connecting pipeline, with the connecting pipeline provided with three-way tap to communicate with another end of the by-pass pipeline and each cylinder is provided with spiral guiding spring attached by its lower end to the cylinder wall. EFFECT: highly effective filter. 1 dwg