Filter assembly

Claim 1

A FILTER ASSEMBLY FOR USE WITH A TANK HAVING AN APERTURED BOTTOM WALL AND CONTAINING THE FLUID TO BE FILTERED COMPRISING A BASE, A DOWNWARDLY EXTENDING CENTRALLY LOCATED HUB ON SAID BASE HAVING A MAIN FUEL INLET PASSAGEWAY EXTENDING DOWNWARDLY THROUGH SAID HUB, A SECOND INLET PASSAGEWAY IN SAID BASE EXTENDING RADIALLY INTO SAID HUB AND INTERSECTING SAID MAIN FUEL INLET PASSAGEWAY, COMMON VALVE MEANS FOR CLOSING SAID FIRST AND SECOND PASSAGEWAYS AT THE INTERSECTION THEREOF, MEANS FOR SECURING SAID BASE AGAINST THE TANK WITH THE MAIN PASSAGEWAY COMMUNICATING WITH THE INSIDE OF THE TANK THROUGH THE APERTURE IN THE BOTTOM WALL THEREOF, A DOWNWARDLY EXTENDING RIM ON SAID BASE, AN OUTLET PORT IN SAID BASE, A REPLACEABLE FILTER CARTRIDGE HAVING AN UPPER PERIPHERAL RIM AND HAVING AN IMPERFORATE CYLINDRICAL OUTER WALL FORMING AN OUTER WALL OF THE ASSEMBLY, MEANS ESTABLISHING SEALING ENGAGEMENT BETWEEN THE CARTRIDGE RIM AND THE RIM ON SAID BASE FILTER CARTRIDGE HAVING MEANS COMMUNICATING WITH SAID OUTLET PORT AND AN AXIALLY EXTENDING TUBULAR MEMBER FORMING A PORT OF THE CARTRIDGE IN COMMUNICATION WITH SAID MAIN FUEL INLET PASSAGEWAY MEANS ESTABLISHING SEALING ENGAGEMENT BETWEEN SAID TUBULAR MEMBER AND SAID HUB, A TRANSPARENT END CAP HAVING A PERIPHERAL WALL IN SEALING ENGAGEMENT WITH THE LOWER RIM OF SAID FILTER CARTRIDGE, A THREADED FASTENER EXTENDING THROUGH SAID END CAP AND IN THREADED ENGAGEMENT WITH SAID HUB TO SECURE SAID END CAP AND FILTER CARTRIDGE TO SAID BASE, SAID THREADED FASTENER HAVING A PASSAGEWAY FORMED THEREIN COMMUNICATING WITH THE INTERIOR OF SAID END CAP AND EXTENDING TO THE OUTSIDE THEREOF TO FORM A WATER DRAIN PASSAGEWAY, AND CLOSURE MEANS FOR SAID WATER DRAIN PASSAGEWAY.