Pilot controlled valve

Claim 1

IN A PILOT CONTROLLED VALVE INCLUDING A VALVE BODY A MAIN PRESSURE RESPONSIVE VALVE INCLUDING A DIAPHRAGM FOR CONTROLLING THE FLOW THROUGH SAID PILOT CONTROLLED VALVE, AN INLET LEADING TO SAID MAIN PRESSURE RESPONSIVE VALVE AND AN OUTLET LEADING FROM SAID MAIN PRESSURE RESPONSIVE VALVE, A PILOT SYSTEM FORMED SAID MAIN PRESSURE RESPONSIVE TROLLING THE FLUID PRESSURE APPLIED TO SAID MAIN VALVE, SAID PILOT SYSTEM INCLUDING A CHAMBER FORMED IN SAID VALVE BODY OVER SAID DIAPHRAGM, A BLEEDER OPENING IN THE DIAPHRAGM FOR INTRODUCING FLUID INTO SAID CHAMBER FROM SAID INLET AT SUBSTANTIALLY THE INLET PRESSURE FOR CLOSING SAID DIAPHRAGM, AND A RELIEF PASSAGEWAY IN SAID VALVE BODY LEADING FROM SAID CHAMBER TO SAID OUTLET FOR RELEASING FLUID FROM SAID CHAMBER TO ALLOW SAID DIAPHRAGM TO OPEN; A CONTROL MEANS FOR SAID PILOT SYSTEM COMPRISING A PILOT VALVE IN SAID RELIEF PASSAGEWAY, SAID PILOT VALVE INCLUDING A METAL EYELET PORT MOUNTED IN A SEAT IN SAID VALVE BODY, AND A CLOSURE MEMBER POSITIONED OVER SAID PORT, SAID EYELET PORT HAVING A CENTRAL BARREL FORMING A FLOW PASSAGE THERETHROUGH AND SAID CLOSURE MEMBER ENGAGING THE MOUTH OF SAID BARREL TO CLOSE SAID PILOT PORT, SAID BARREL TERMINATING IN AN INTEGRAL UPWARDLY TURNED SKIRT FORMING AN ANNULAR RIM AROUND SAID BARREL, AND A FLANGE EXTENDING OUTWARDLY FROM SAID ANNULAR RIM, SAID FLANGE BEING ADJACENT SAID SEAT IN SAID VALVE BODY, A GASKET ENGAGING SAID ANNULAR RIM, SAID FLANGE AND SAID VALVE BODY FOR EFFECTING A FLUID SEAL THEREBETWEEN, AND SAID RIM BEING SPACED FROM SAID BARREL AND THEREWITH FORMING AN ANNULAR GROOVE FOR CATCHING FOREIGN PARTICLES CARRIED BY THE FLUID PASSING INTO SAID BARREL.