Hydraulic suction line filter

Claim 1

IN A LOW PRESSURE FLUID FILTER OF THE CLASS DESCRIBED, A TUBULAR CASING INCLUDING ALIGNED INLET AND OUTLET PORTIONS OF A LESSER DIAMETER THAN A MDEIAL PORTION OF THE CASING AND ADAPTED EACH TO BE CONNECTED TO A A PART OF A SUCTION LINE, A FILTER CYLINDER HAVING SUBSTANTIALLY THE SAME DIAMETER AS SAID INLET AND OUTLET PORTIONS AND A CYLINDRICAL END PORTION OF THE FILTER INTEGRALLY CONNECTED TO THE TUBULAR INLET PORTION IN THE CASING PERMITTING INITIAL FLUID FLOW IN A DIRECTION ONLY INTERNALLY OF SAID FILTER CYLINDER, THE OPPOSED END OF THE CYLINDER BEING ALIGNED WITH THE CASING OUTLET, SAID OPPOSED END OF THE CYLINDER TERMINATING SHORT OF SAID OUTLET SO THAT A CIRCULAR CHAMBER ABOUT SAID CYLINDER IS IN DIRECT COMMUNICATION WITH SAID OUTLET, A FILTER CONE HAVNG ITS BASE SECURED IN SAID OPPOSED END OF THE FILTER CYLINDER AND ITS APEX SUBSTANTIALLY IN ALIGNED RELATION TO THE FIRST END OF CYLINDER SO THAT THE CONE AXIALLY COEXTENDS WITH THE CYLINDER PERMITTING FLUID FLOW THROUGH ONE OR THE OTHER OF SAID FILTERS TO MINIMIZE THE PRESSURE DROP AS FLUID PASSES THROUGH THE FILTER, SAID FILTER CONE PRESENTING AN INCLINED FILTER SURFACE THAT EXTENDS ACROSS THE PATH OF FLUID THAT MAY FLOW IN AXIAL DIRECTION BETWEEN THE INLET AND OUTLET PORTIONS OF THE CASING, SAID INCLINED FILTER SURFACE BEING EFFECTIVE AS IT BECOMES COATED WITH FILTERED MATERIAL TO DIRECT RADIALLY THROUGH THE CYLINDER SURFACE SO AS TO BE FILTERED BY SAID CYLINDER, AND CONNECTED PARTS OF THE FILTER CONE AND FILTER CYLINDER FORMING A CIRCULAR SPACE THAT COLLECTS FILTERED MATERIAL WHICH MAY BE CARRIED ALONG THE CONE AND CYLINDER SURFACES BY AXIALLY MOVING FLUID.