Suspension for vehicles

Claim 1

IN A SUSPENSION FOR VEHICLES WITH AN OLEO-PNEUMATIC ACCUMULATOR, A SHOCK-ABSORBER JACK COMPRISING A CYLINDER, A PISTON ADAPTED TO MOVE IN SAID CYLINDER, A PISTON ROD COMPRISING NEAR ITS UPPER EXTREMITY, TWO DISTINCT COAXIAL PORTIONS SEPARATED BY AN ANNULAR DAMPING SPACE, ONE OF SAID PORTIONS COMPRISING A PISTON SEPARATING TWO CHAMBERS OF SAID CYLINDER, ONE UPPER CHAMBER, THE OTHER LOWER CHAMBER, COMMUNICATING WITH EACH OTHER ON THE ONE HAND THROUGH ORIFICES FORMED IN THE SEPARATING PISTION, CONTROLLED BY A CLAPPER VALVE AND PERMITTING FREE PASSAGE OF THE LIQUID WHEN SAID VALVE IS OPEN, AND ON THE OTHER HAND, THROUGH THE INTERMEDIARY OF SAID ANNULAR DAMPING SPACE AND OF ORIFICES IN THE LOWER PORTION OF THE PISTON ROD, SAID CLAPPER VALVE BEING OPEN DURING THE COMPRESSION STROKE AND CLOSED DURING THE EXPANSION STROKE, AT THE UPPER PORTION OF SAID CYLINDER AND IN SAID CYLINDER, A MEMBER INTERPOSED BETWEEN SAID UPPER CHAMBER AND THE CONNECTION TO THE OLEO-PNEUMATIC ACCUMULATOR, A SECOND ANNULAR DAMPING SPACE COMPRISED BETWEEN SAID INTERPOSED MEMBER AND THE BODY OF THE CYLINDER, CHANNELS FORMED IN SAID MEMBER AND PERMITTING FREE PASSAGE OF THE LIQUID BETWEEN SAID CONNECTION AND SAID UPPER CHAMBER, AND A SECOND CLAPPER VALVE FOR CONTROLLING SAID CHANNELS, SAID VALVE BEING OPEN DURING THE EXPANSION STROKE AND CLOSED DURING A COMPRESSION STROKE.