Sump drain valve

Claim 1

A SUMP DRAIN ARRANGEMENT FOR USE IN DRAINING SUMP PRODUCTS FROM A TRUCK TANK AND THE LIKE COMPRISING A DRAIN VALVE UNIT HAVING A CASING WITH A PORT THEREIN, A PASSAGEWAY COMMUNICATING WITH SAID PORT AND A VALVE ADJUSTED TO SELECTIVELY CLOSE SAID PASSAGEWAY, SAID VALVE INCLUDING A VALVE HEAD AND A STEM ON THE END OF WHICH SAID HEAD IS PIVOTALLY SUPPORTED AND SAID CASING BEING PROVIDED WITH A RESILIENT SEAL ADAPTED TO BE CONTACTED BY SAID HEAD; ACCESS MEANS ON SAID CASING ADAPTED FOR RELEASE FROM A REMOTE POINT FOR PROVIDING ACCESS TO SAID VALVE HEAD, SAID HEAD BEING ORIENTED IN SAID CASING AND SAID CASING BEING CONFIGURED WHEREBY RELEASE OF SAID ACCESS MEANS PERMITS REMOVAL OF SAID VALVE HEAD AND SAID SEAL FROM SAID CASING WITHOUT THE NEED TO REMOVE SAID UNIT FROM SAID TANK, COLLECTOR CHAMBER AND VALVE RECEIVING MEANS ADAPTED TO BE SECURED TO AND DEPEND FROM THE SUMP SECTION OF SAID TANK AND TO DELIMIT THE DRAIN HOLE IN SAID SUMP SECTION, SAID CHAMBER MEANS HAVING AN OPENING FOR RECEIVING SAID VALVE UNIT, SAID CASING PORT BEING IN COMMUNICATION WITH SAID DRAIN HOLE VIA SAID CHAMBER; AND LEVER CONTROL MEANS COUPLED TO SAID VALVE HEAD FOR CONTROLLING DRAINAGE THROUGH SAID PASSAGEWAY.