Heart and lung resuscitator

Claim 1

A HEART LUNG RESUSCITATOR COMPRISING A SOURCE OF COMPRESSED GAS, A PNEUMATICALLY CONTROLLED VALVE HAVING AN INLET CONNECTED TO THE SOURCE OF COMPRESSED GAS AND HAVING A PULSE AND SECOND PUTLET, MEANS BIASING THE VALVE TO A FIRST CONDITION WHEREIN THE INLET IS CONNECTED TO THE PULSE OUTLET TO ALLOW THE COMPRESSED GAS TO DISCHARGE THROUGH SAID PULSE OUTLET, A PILOT LINE CONNECTED FROM THE SOURCE TO THE PNEUMATIC VALVE AND WHEN OPEN PLACING THE VALVE IN A SECOND CONDITION WHEREIN THE INLET IS CONNECTED TO THE SECOND OUTLET AND IS DISCONNECTED FROM THE PULSE OUTLET, MEANS CONNECTED TO THE PILOT LINE OPERATED IN RESPONSE TO THE SECOND OUTLET BEING CONNECTED TO THE INLET FOR CLOSING THE PILOT LINE, A CYLINDER HAVING A PISTON BIASED TO A RETRACTED POSITION WITHIN THE CYLINDER, A PASSAGE CONNECTING THE PULSE OUTLET TO THE CYLINDER FOR MOVING THE PISTON TO AN EXTENDED POSITION WHEN COMPRESSED GAS IS DISCHARGED FROM SAID OUTLET, A PAD CARRIED BY THE END OF THE PISTON FOR APPLYING COMPRESSIVE FORCES TO THE CHEST OF A PATIENT WHEN THE PISTON IS IN THE EXTENDED POSITION, A PNEUMATIC COUNTER CONNECTED TO THE PULSE OUTLET AND ACTUATED WITH EACH DISCHARGE FROM THE PULSE OUTLET, A TANK FOR STORING LUNG VENTILATING GAS, A FITTING FOR INTRODUCING THE GAS TO THE LUNGS OF A PATIENT, MEANS INCLUDING A VALVE CONNECTING THE TANK TO THE FITTING, AND CONTROL MEANS FOR OPENING THE LAST NAMED VALVE IN RESPONSE TO SELECTED ACTUATIONS OF THE COUNTER.