Corrosion resistant valve

Claim 1

A CORROSION RESISTANT VALVE COMPRISING A VALVE BODY OF NON-MAGNETIC, CORROSION RESISTANT MATERIAL, SAID BODY INCORPORATING A CHAMBER, AN EXHAUST DUCT LEADING FROM SAID CHAMBER, A FEMALE VALVE SEAT RIMMING AN ORIFICE AT ONE END OF SAID CHAMBER AND AN INLET DUCT LEADING TO SAID ORIFICE EXTERNALLY OF SAID CHAMBER; A PLUNGER OF NONMAGNETIC CORROSION RESISTANT MATERIAL SLIDABLE AXIALLY WITHIN SAID CHAMBER; A MAGNETIC CORE WITHIN AND TOTALLY ENCLOSED BY SAID PLUNGER; A MALE VALVE SEAT SECURED TO SAID PLUNGER ABLE TO CLOSE THE VALVE BY SEATING IN A LIQUID TIGHT MANNER AGAINST SAID FEMALE SEAT AND OPEN THE VALVE BY DEPARTING FROM THAT SEAT IN CONSEQUENCE OF AXIAL MOVEMENT OF SAID PLUNGER; TWO SOLENOID COILS WITH THEIR ADJACENT ENDS IN CLOSE PROXIMITY OUTSIDE SAID BODY EN CIRCLING SAID CHAMBER AND BEING ADAPTED TO ACT UPON SAID CORE AS AN ARMATURE SO AS TO CLOSE AND OPEN SAID VALVE DEPENDING ON WHICH COIL IS ENERGIZED FOR THE TIME BEING, AND MEANS TO MONITOR THE ELECTRICAL CONTINUITY OF THE UNENERGIZED COIL, SAID MEANS BEING OPERATED BY THE VOLTAGE INDUCED IN THE UNENERGIZED COIL BY THE LEAKAGE FLUX OF THE ENERGIZED COIL.