Safety device

Claim 1

A SAFETY DEVICE FOR OCCUPANTS OF VEHICLES AND FOR PARACHUTE JUMPERS WHICH COMPRISES IN COMBINATION: STRAP MEANS FOR HOLDING THE PERSON TO BE PROTECTED; BRAKING MEANS OPERATIVELY ATTACHED TO SAID STRAP MEANS, SAID BRAKING MEANS SERVING TO CUSHION THE MOVEMENT OF SAID PERSON, SAID BRAKING MEANS INCLUDING A MOVEMENT ENERGYABSORBING BRAKE CYLINDER, HAVING AN INNER AND AN OUTER CHAMBER, A PISTON ROD AND PISTON MOVABLY MOUNTED WITHIN THE INNER CHAMBER OF SAID CYLINDER, SAID PISTON ROD BEING OPERATIVELY ATTACHED TO SAID STRIP MEANS, LIQUID BRAKE MEDIUM FILLING SAID CYLINDER, MEANS FOR PROGRESSIVELY INCREASING THE HYDRAULIC BRAKING FORCE ACTING AGAINST THE MOVEMENT OF SAID PISTON AS SAID PISTON MOVES AWAY FROM ITS POSITION OF REST, SAID MEANS FOR PROGRESSIVELY INCREASING THE HYDRAULIC BRAKING FORCE INCLUDING SUCCESSIVE OUTLET OPENINGS FOR SAID LIQUID BRAKE MEDIUM IN THE WALL SEPARATING THE TWO CHAMBERS OF SAID CYLINDER, AND MEANS FOR PASSING SAID LIQUID FORCE THROUGH SAID CYLINDER, AND MEANS FOR BY THE UPWARD MOVEMENT OF SAID PISTON INTO THE AREA VACATED BY SAID PISTON, AND MEANS FOR SLOWLY RETURNING SAID PISTON TO ITS ORIGINAL POSITION OF REST WHEN THE ENERGY CAUSING THE UPWARD THRUST OF SAID PISTON HAS BEEN DISSIPATED; AND SECURING MEANS FOR FASTENING SAID BRAKING MEANS TO THE BODY OF SAID VEHICLE AND PARACHUTE.