Pressure regulator

Claim 1

A FLUID PRESSURE REGULATOR COMPRISING A PRESSURE INPUT CHAMBER HAVING A SOURCE OF VARIABLE INPUT PRESSURE CONNECTED THERETO, A PRESSURE OUTPUT CHAMBER, A PRESSURE CONTROL VALVE INTERCONNECTING SAID CHAMBERS, A FIRST FLEXIBLE DIAPHRAGM ASSEMBLY DEFINING ONE WALL OF SAID OUTPUT CHAMBER AND COUPLED WITH SAID CONTROL VALVE TO ADJUSTABLY POSITION SAID VALVE IN RESPONSE TO THE PRESSURE IN SAID OUTPUT CHAMBER, SAID CONTROL VALVE ACTING AGAINST SAID DIAPHRAGM ASSEMBLY, IN AUGMENTATION OF THE EFFECT OF SAID OUTPUT PRESSURE THEREON, WITH A FORCE DIRECTLY PROPORTIONAL TO THE PRESSURE DIFFERENTIAL BETWEEN SAID INPUT AND SAID OUTPUT PRESSURE, A TORSION MEMBER HAVING A PREDETERMINED TWIST IMPARTED THERETO, A REGULATOR LEVER MOUNTED ON SAID TORSION MEMBER AND EXTENDING THEREFROM TO AN EXTERNAL COUPLING ON SAID FIRST DIAPHRAGM ASSEMBLY TO APPLY A FORCE THERETO, DETERMINED BY THE CHARACTERISTICS OF SAID TORSION MEMBER, IN OPPOSITION TO THE FORCE EXERTED THEREON FROM WITHIN SAID OUTPUT CHAMBER TO THEREBY TEND TO MAINTAIN A CONSTANT OUTPUT PRESSURE IN SAID OUTPUT CHAMBER, A COMPENSATING CHAMBER INTERCONNECTED WITH SAID INPUT CHAMBER AND HAVING ONE WALL THEREOF DEFINED BY A SECOND FLEXIBLE DIAPHRAGM MEANS, AND COUPLING MEANS INTERCONNECTING SAID SECOND DIAPHRAGM MEANS WITH SAID TORSION MEMBER, SAID SECOND DIAPHRAGM MEANS BEING DISPLACEABLE IN PREDETERMINED PROPORTION TO SAID INPUT PRESSURE AND ACTING THROUGH SAID COUPLING MEANS TO VARY THE CHARACTERISTICS OF SAID TORSION MEMBER, WHEREBY THE RESULTING FORCE EXERTED BY SAID REGULATOR LEVER ON SAID FIRST DIAPHRAGM IS AUGMENTED TO EQUALLY AND OPPOSITELY OPPOSE THE FORCE EXERTED THEREON BY SAID CONTROL VALVE TO THEREBY MAINTAIN A CONSTANT BIAS ON SAID DIAPHRAGM AND A CONSTANT PRESSURE IN SAID OUTPUT CHAMBER.