Dual safety hydraulic system

Claim 1

BRAKE CONTROL APPARATUS COMPRISING A MASTER CYLINDER HAVING A PLURALITY AND SECONDARY FLUID SUPPLY SYSTEM, A CONDUIT FOR EACH SYSTEM CONNECTED TO THE MASTER CYLINDER, AND MEANS OPERATIVEY ASSOCIATED WITH SAID MASTER CYLINDER FOR SUPPLYING FLUID UNDER PRESSURE TO EACH SAID CONDUIT, THE APPARATUS FURTHER COMPRISING FIRST AND SECOND PRESSURE FLUID UTILIZATION MEANS INCLUDING A RESPECTIVE CONDUIT FOR THE SUPPLY OF PRESSURE FLUID AND INTERMEDIATE FLUID CONTROL MEANS CONNECTING THE CONDUITS FROM THE MASTER CYLINDER WITH THE CONDUITS OF THE UTILIZATION MEANS, SAID INTERMEDIATE FLUID CONTROL MEANS INCLUDING MEANS FOR MULTIPLYING THE PRESSURE OF THE FLUID RECEIVED FROM THE CONDUITS OF THE MASTER CYLINDER FOR DELIVERY TO THE CONDUITS OF THE FLUID UTILIZATION MEANS, AND MEANS CONTROLLING RESPECTIVE DELIVERY OF FLUID BETWEEN THE CONDUITS OF THE MASTER CYLINDER AND THE FLUID UTILIZATION MEANS TO PROVIDE DELIVERY OF PRESSURE FLUID TO ONE OF THE UTILIZATION MEANS WITH THE OTHER OF THE UTILIZATION MEANS AND THE FLUID SUPPLY SYSTEM ASSOCIATED THEREWITH INOPERATIVE, SAID MEANS WHICH CONTROLS DELIVERY OF FLUID COMPRISING A CYLINDER, A CENTRAL PISTON SLIDABLY SUPPORTED IN THE LATTER CYLINDER AND DEFINING FIRST AND SECOND SEPARATE CHAMBERS THEREIN, FIRST AND SECOND PISTON MEANS RESPECTIELY SUPPORTED IN THE CHAMBERS OF THE LATTER CYLINDER FOR SLIDABLY MOVEMENT, SAID CONDUITS WHICH ARE CONNECTED TO THE MASTER CYLINDER BEING CONNECTED TO AND OPENING INTO THE CYLINDER OF THE FLUID CONTROL MEANS ON A RESPECTIVE SIDE OF SAID CENTRAL PISTON THEREIN FOR SUPPLYING PRESSURE FLUID THERETO, SAID MEANS FOR MULTIPLYING THE FLUID PRESSURE COMPRISING POWER MEANS COUPLED TO RESPECTIVE OF THE FIRST AND SECOND PISTON MEANS FOR DISPLACING THE SAME WITHIN THE CYLINDER OF THE FLUID CONTROL MEANS TO INCREASE THE PRESSURE OF THE FLUID SUPPLIED TO THE CHAMBERS FOR DELIVERING FLUID UNDER STILL GREATER PRESSURE TO THE FLUID UTILIZATION MEANS.