Fluid pressure regulator switch

Claim 1

IN COMBINATION: A CASING HAVING A VARIABLE PRESSURE FLUID BOTTOM CONNECTION MEANS AND A CONSTANT PRESSURE FLUID UPPER CONNECTION MEANS; A DIAPHRAGM IN SAID CASING SEPARATING THE INTERIOR OF SAID CASING INTO A VARIABLE PRESSURE LOWER CHAMBER AND A CONSTANT PRESSURE UPPER CHAMBER; A PLUNGER WITH A LOWER END ENGAGING SAID DIAPHRAGM AND HAVING AN UPPER END EXTENDING INTO SAID UPPER CONNECTION MEANS; A SWITCH IN SAID CASING OPERATED BY VERTICAL MOVEMENT OF SAID DIAPHRAGM IN RESPONSE TO THE FLEXING OF SAID DIAPHRAGM BY VARIABLE FLUID PRESSURES IN SAID LOWER CHAMBER; A STATIONARY PARTITION IN SAID UPPER CONNECTION MEANS HAVING A PLUNGER OPENING INTO WHICH SAID UPPER END OF SAID PLUNGER IS MOVABLE; A SPRING END RECEIVING INVERTED CUP HAVING A LOWER RIM SUPPORTABLE ON SAID STATIONARY PARTITION TO PLACE SAID INVERTED CUP OVER SAID PLUNGER OPENING; A RESET BUTTON IN SAID INVERTED CUP HAVING A HORIZONTAL PLATE ENGAGEABLE WITH SAID UPPER PLUNGER END AND WITH SAID STATIONARY PARTITION, SAID PLATE HAVING AN UPWARD BUTTOM SHAFT EXTENDING THROUGH AN OPENING IN THE INVERTED BOTTOM OF SAID INVERTED CUP; A RELATIVELY HIGH VARIABLE PRESSURE UPPER CONTROL SPRING ABOVE SAID INVERTED CUP WITH ITS LOWER END ENGAGING SAID RIM OF SAID CUP; AN UPPER END ADJUSTMENT MEMBER WITH RELATIVELY HIGH VARIABLE FLUID PRESSURE ADJUSTMENT MEANS AND A RESET ADJUSTMENT MEANS, SAID ADJUSTMENT MEMBER ENGAGING THE UPPER END OF SAID UPPER CONTROL SPRING AND ENGAGING SAID BUTTON SHAFT WHEN ADJUSTED TO RENDER SAID RESET ADJUSTMENT MEANS EFFECTIVE; AN INTERMEDIATE SPRING ABOVE SAID DIAPHRAGM WITH ITS UPPER END ENGAGING SAID STATIONARY PARTITION AND WITH ITS LOWER END ENGAGING A SPRING RECEIVING SHOULDER ON SAID PLUNGER; A RESET ADJUSTMENT LOWER SPRING BELOW SAID DIAPHRAGM WITH ITS UPPER END ENGAGING SAID DIAPHRAGM; A LOW SPRING ADJUSTMENT MEMBER ENGAGING THE LOWER END OF SAID LOWER SPRING, SAID RESET ADJUSTMENT MEMBER BEING ADJUSTMENT TO VARY THE SPRING LOAD ON SAID LOWER SPRING.