Pressure responsive flow control valve for directional control valve

Claim 1

A FLOW CONTROL VALVE COMPRISING A BODY HAVING A PAIR OF PASSAGES; VALVE MEMBERS IN THE RESPECTIVE PASSAGES; SPRINGS BIASING SAID VALVE MEMBERS TO POSITIONS CLOSING THE RESPECTIVE PASSAGES; SAID BODY HAVING A CYLINDER THEREIN IN FLUID COMMUNICATION WITH SAID PASSAGES UPSTREAM OF SAID VALVE MEMBERS; A PLUNGER IN SAID CYLINDER HAVING ONE END EXPOSED TO FLUID UNDER PRESSURE IN ONE OF SAID PASSAGES AND THE OTHER END EXPOSED TO FLUID UNDER PRESSURE IN THE OTHER OF SAID PASSAGES; SAID PLUNGER BEING ADAPTED TO BE MOVED BY PREDOMINANT FLUID PRESSURE IN EITHER PASSAGE INTO ENGAGEMENT WITH THE VALVE MEMBER IN THE OTHER PASSAGE TO MOVE IT TO A POSITION OPENING SAID OTHER PASSAGE; SAID PLUNGER HAVING FLOW METERING MEANS ON EITHER END THEREOF WHICH ARE OPERATIVE SIMULTANEOUSLY TO METER THE FLOW THROUGH BOTH OF SAID PASSAGES WHEN ONE OF SAID PASSAGES IS OPENED BY ENGAGEMENT OF SAID PLUNGER WITH ITS RESPECTIVE VALVE MEMEBER, AND THE OTHER OF SAID PASSAGES IS OPENED BY FLUID PRESSURE EXERTED ON ITS RESPECTIVE VALVE MMBER.