Fluid regulator

Claim 1

A FLUID FLOW CONTROLLING DEVICE COMPRISING, IN COMBINATION: A FLUID FLOW PASSAGEWAY THROUGH WHICH THE FLUID FLOW TO BE CONTROLLED MOVES, A THROTTLE VALVE IN SAID PASSAGEWAY FOR CONTROLLING FLOW THERETHROUGH, A FLUID PRESSURE ACTUATOR COUPLED WITH THE THROTTLE VALVE TO SHIFT IT, FLUID PASSAGEWAY MEANS COMMUNICATING WITH THE ACTUATOR TO INTRODUCE FLUID PRESSURE THERETO AND OTHER FLUID PASSAGEWAY MEANS COMMUNICATING WITH THE ACTUATOR TO ALLOW FLUID PRESSURE TO ESCAPE THEREFROM, A FLUID PRESSURE BALANCED SPOOL TYPE SERVO VALVE IN ONE OF SAID PASSAGEWAY MEANS FOR CONTROLLING THE PRESSURE IN THE ACTUATOR, FIRST MEANS FOR DIVIDING FLUID PRESSURE INTO OPPOSING UNEQUAL FORCES OF CONSTANT RATIO, SECOND MEANS FOR DIVIDING A SECOND FLUID PRESSURE INTO OPPOSING UNEQUAL FORCES OF CONSTANT RATIO, SAID FIRST AND SECOND MEANS CONNECTED TOGETHER AND MOVABLE IN RESPONSE TO A RESULTANT UNBALANCED FORCE THEREBETWEEN, SAID SERVO VALVE CONNECTED TO SAID FIRST AND SECOND MEANS TO MOVE THEREWITH, SAID FIRST MEANS SUBJECTED TO THE FLUID PRESSURE IN SAID PASSAGEWAY AT THAT