Pilot operated valve

Claim 1

A VALVE OF THE BALANCED PRESSURE TYPE COMPRISING A BODY PORTION HAVING AN INLET PORT AND AN OUTLET PORT, A CONICAL FRUSTUM SHAPED VALVE SEAT DISPOSED THEREBETWEEN HAVING A FIRST CHAMBER ADJACENT ITS LARGER DIAMETER END AND A SECOND CHAMBER ADJACENT ITS SMALLER DIAMETER END, INLET PASSAGEWAYS CONNECTING THE INLET PORT TO THE FIRST AND SECOND CHAMBERS, AND AN ONLET PASSAGEWAY LEADING FROM THE SIDE WALL OF SAID VALVE SEAT TO THE OUTLET PORT, A CONICALLY SHAPED VALVE PLUG DISPOSED ON SAID VALVE SEAT WHEN THE VALVE IS CLOSED, A PILOT PASSAGEWAY DISPOSED IN SAID VALVE PLUG CONNECTING THE FIRST CHAMBER TO THE OUTLET PASSAGEWAY WHEN THE VALVE IS CLOSED, A RESILIENT MEMBER MOUNTED ON SAID VALVE PLUG NORMALLY PROHIBITING FLUID FLOW THROUGH THE PILOT PASSAGEWAY, SAID RESILIENT MEMBER BEING MOUNTED AT ONE END ONLY ON SAID VALVE PLUG AND ELECTRO-MAGNETIC MEANS ADAPTED WHEN ENERGIZED TO FLEX SAID RESILIENT MEMBER SO AS TO INITIALLY LIFT THE FREE END ONLY OF SAID MEMBER, WHEREBY SAID MEMBER WILL ACT AS A LEVER WITH RESPECT TO THE RESULTANT OF THE FLUID FORCE THEREON AND PERMIT FLUID FLOW THROUGH THE PILOT PASSAGEWAY.