De-popper valve

Claim 1

A PRESSURE RESPONSIVE VALVE ASSEMBLY COMPRISING FIRST AND SECOND HOUSING MEMBERS SECURED TOGETHER WITH A MOVABLE MEMBER THEREBETWEEN SO AS TO FORM ADJACENT FIRST AND SECOND CHAMBERS, RESPECTIVELY, HAVING SAID MOVABLE MEMBER AS A COMMON WALL, SAID FIRST HOUSING MEMBER HAVING A CONDUIT THROUGH WHICH PRESSURE MAY BE TRASMITTED TO SAID FIRST CHAMBER, SAID SECOND HOUSING MEMBER INCLUDING AN OUTLET OPENING FORMED THEREIN AND AN OUTWARDLY-EXTENDING ELEMENT, A PASSAGE EXTENDING OUTWARDLY THROUGH THE WALL OF SAID ELEMENT, A STEM HAVING ONE END THEREOF SECURED TO SAID DIAPHRAGM AND EXTENDING WITH CLEARANCE AXIALLY THROUGH SAID ELEMENT, THE SURFACE OF SAID ELEMENT ADJACENT SAID SECOND HOUSING MEMBER BEING FORMED AS A FIRST VALVE SEAT, A PORTION OF SAID STEM POSITIONED WITHIN SAID ELEMENT BEING FORMED WITH AN ANNULAR VALVE MEMBER THEREON ADAPTED TO AT TIMES ENGAGE SAID FIRST SEAT AND TO AT TIMES CLOSE SAID PASSAGE EXTENDING OUTWARDLY THROUGH SAID WALL OF SAID ELEMENT, SAID STEM BEING FORMED ADJACENT SAID ANNULAR VALVE MEMBER TO PROVIDE A SECOND VALVE MEMBER, THE INNER SURFACE OF SAID ELEMENT BEING FORMED AT THE FREE END THEREOF TO PROVIDE A SECOND VALVE SEAT, A SEPARATE VALVE MEMBER POSITIONED OVER SAID STEM MEMBER WITH CLEARANCE, SAID SEPARATE MEMBER BEING HELD AGAINST SAID SECOND VALVE MEMBER ON SAID STEM BY A RESILIENT MEANS POSITIONED WITHIN SAID SEPARATE MEMBER AND RETAINED BY A SHOULDER FORMED ON THE FREE END OF SAID STEM, AND SAID SEPARATE MEMBER BEING URGED AWAY FROM SAID SECOND SEAT BY A SECOND RESILIENT MEANS DISPOSED BETWEEN SAID FREE END OF SAID ELEMENT AND A SHOULDER FORMED ON THE OUTSIDE OF SAID SEPARATE MEMBER.