Patent ID: 7857971
Filing Date: 2010-12-28
Classification: B01D

Abstract:
1. A fuel filter assembly suitable to separate solid and semisolid particulate or contaminants from fuels and similar liquids, said fuel filter assembly comprising: a) a vertical upright housing comprising an upper end and a lower end; b) a removable lid comprising two concentric cylindrical sections wherein one of such cylindrical sections is wider in diameter than the other cylindrical section; an aperture that passes through substantially the center of said lid; an annular sealing ring inserted around the walls of the cylindrical section with smaller diameter and wherein said cylindrical section with smaller diameter is tightly inserted into the upper end of the vertical upright housing; c) a threaded fastening element that passes through the aperture of the lid; said threaded fastening element comprising a handle at its upper section and a threaded lower end; d) a base located at the lower end of the said vertical upright housing, said base comprising an outer cylindrical section; an inner cylindrical section located substantially at the center of the outer cylindrical section wherein said outer cylindrical section is wider in diameter than the inner cylindrical section and wherein said outer cylindrical section and said inner cylindrical section physically constitute a single unit; an annular sealing ring inserted around the walls of the inner cylindrical unit and wherein the inner cylindrical section is tightly inserted into the lower end of the vertical upright housing; a fuel flow inlet and a fuel flow outlet, wherein: the fuel flow inlet is formed by: the fuel flow outlet is constituted by: e) a removable, non disposable filtering unit enclosed in the interior section of said housing, said filtering unit comprising a main body, having multiple mesh-type openings on its surface; wherein the lateral borders of said main body are folded in a zig-zag or star pattern and wherein the top end of said main body is totally open; and a flat bottom surface located at the lower end of said main body, said flat bottom surface having a hole substantially at its center; f) a fuel delivering unit for delivering the unfiltered fuel flow from said fuel flow inlet to the upper part of the filtering unit; said fuel delivering unit comprising a hollow tube having an internally threaded upper end; an externally threaded lower end and a lateral aperture at its upper section, wherein said hollow tube is threaded at its upper end to the fastening element and at its lower end to the first end to the fuel flow inlet, thus allowing the entrance of the unfiltered fuel flow at the internal section of the housing and discharging it from the upper part of the filtering unit via said lateral aperture.