FILTERING DEVICE (VERSIONS) Russian patent published in 2002 - IPC

FIELD: filtering equipment. SUBSTANCE: filtering device has container for storing liquid to be cleaned, filter with supporting rods arranged in equally spaced relation and circumferentially on cylindrical edge of filter lower side. Supporting rods have radially extending parts arranged on their ends and wire of wedge-shaped section spirally coiled on rods so as to define slot that is widening in radial direction. Top part of wire oriented into filter is welded to radially extending parts of supporting rods at wire and supporting rod intersection points. Various embodiments of filtering device differ in construction of device for forming flow of liquid to be cleaned. Such construction of filtering device prevents clogging of filtering surface. EFFECT: simplified construction and increased effective operating time. 8 cl, 12 dwg