Vacuum filter assembly

Claim 1

IN A FILTERING APPARATUS COMPRISING A TANK DEFINED BY UPRIGHT WALLS AND A BOTTOM CLOSURE, SAID TANK BEING OPEN AT ITS TOP, AN ANGLE MEMBER POSITIONED ABOUT THE INNER WALL OF SAID TANK, SAID ANGLE MEMBER INCLUDING A HORIZONTAL LEG HAVING ITS END PORTION WELDED TO THE INNER WALL OF THE TANK AND AN UPRIGHT LEG SPACED FROM THE WALL OF SAID TANK TO DEFINE A GASKET SEAT, A GASKET POSITION IN SAID SEAT OF O-RING FORM IN CROSS-SECTION, SAID GASKET HAVING A DIAMETER GREATER THAN THE DEPTH OF THE SEAT WHEREBY IT PROJECTS SUBSTANTIALLY ABOVE SAID VERTICAL LEG, A PLATE SEATED ON SAID GASKET DEFINING AN UPPER CHAMBER AND A LOWER CHAMBER, SAID PLATE BEING FORMED WITH A PLURALITY OF OPENINGS FOR RECEIVING A PLURALITY OF ELONGATED SEPTUMS, EACH SEPTUM COMPRISING A TUBULAR PERFORATED BODY AND A NIPPLE EXTENSION AT ITS BOTTOM, SAID NIPPLE EXTENSIONS EACH BEING REMOVABLY SECURED IN AN OPENING IN SAID PLATE, A SYNTHETIC PERMEABLE TUBULAR CASING SNUGLY FITTING ABOUT EACH SEPTUM, A COATING OF FILTER AID ON THE OUTER SURFACES OF SAID TUBULAR CASINGS, AN INLET FOR FLUID TO BE FILTERED OPENING INTO SAID TANK ABOVE SAID SEPTUMS, A