Anti-roll control system

Claim 1

A CONTROL SYSTEM ON A VEHICLE HAVING A FRAME AND AN AXLE WHICH CONSTITUTE SPRUNG AND UNSPRUNG ASSEMBLIES, RESPECTIVELY, SAID SYSTEM BEING ADAPTED TO COUNTERACT TRANSVERSE ROLL OF THE SPRUNG ASSEMBLY RELATIVE TO THE UNSPRUNG ASSEMBLY, INCLUDING IN COMBINATION, A PAIR OF SPACED APART CYLINDERS AND CONNECTED TO ONE OF SAID ASSEMBLIES, A SOLID PISTON RECIPROCABLE IN EACH CYLINDER AND INCLUDING AN ACTUATING ROD EXTENDING FROM THE CYLINDER AND CONNECTED TO THE OTHER OF SAID ASSEMBLIES, FIRST CONDUIT MEANS CONNECTING ONE END OF ONE CYLINDER WITH THE OPPOSITE END OF THE SECOND CYLINDER, SECOND CONDUIT MEANS CONNECTING THE CORRESPONDING ONE END OF THE SECOND CYLINDER WITH THE CORRESPONDNG OPPOSITE END OF THE FIRST CYLINDER, FIRST AND SECOND PRESSURE ACCUMULATORS IN CONNECTION WITH SAID FIRST AND SECOND CONDUIT MEANS RERESPECTIVELY, HYDRAULIC FLUID RESERVOIR MEANS FOR SAID CYLINDERS, FIRST VALVE MEANS IN THE CORRESPONDING ONE END OF EACH OF SAID CYLINDERS PROVIDING FOR EXHAUST OF FLUID FROM THE RESPECTIVE CORRESPONDING ONE END TO THE RESERVOIR MEANS OF HYDRAULIC FLUID PRESSURE INCREASE THEREIN IN PREDETERMINED PRESSURE VALUE ABOVE THE MINIMUM PRESSURE VALUE OF THE RESPECTIVE PRESSURE ACCUMULATOR IN CONNECTION WITH THE RESPECTIVE SAID ONE END UNDERGOING A FLUID PRESSSURE INCREASE THEREIN, AND SECOND VALVE MEANS IN SAID CORRESPONDING ONE END OF EACH OF SAID CYLINDERS UNDER THE FLUID PRESSURE INFLUENCE OF THE PRESSURE ACCUMULATOR IN CONNECTION THEREWITH PROVIDING SUBSTANTIALLY FOR FREE FLOW OF HYDRAULIC FLUID FROM THE RESERVOIR MEANS TO THE RESPECTIVE ONE END.