Mask-to-mask resuscitation systems

Claim 1

IN A RESUSCITATION SYSTEM OF THE TYPE IN WHICH THE RESCUER''S RESPIRATORY DISCHARGE IS UTILIZED TO REVIVE THE VICTIM, THE COMBINATION OF A FIRST FACEMASK FOR USE BY SAID RESCUER, SAID FACEMASK INCLUDING A SUPPLY AND DISCHARGE LINE WHICH COMMUNICATE WITH THE FACEMASK, AREA, VALVE MEANS POSITIONED IN SAID LINES FOR PERMITTING A UNIDIRECTIONAL FLOW OF GAS TO TAKE PLACE FROM SAID SUPPLY LINE INTO SAID FACEMASK AREA AND OUT SAID DISCHARGE LINE DURING EACH BREATHING CYCLE OF SAID RESCURE; A SECOND FACEMASK FOR USE BY SAID VICTIM, SAID SECOND FACEMASK INCLUDING AN INLET AND OUTLET LINE WHICH COMMUNICATE WITH SAID FACEMASK AREA, A FIRST CHECK VALVE POSITIONED IN SAID INLET LINE FOR PERMITTING UNIDIRECTIONAL FLOW OF GAS TO TAKE PLACE FROM SAID INLET LINE INTO THE FACEMASK AREA OF SAID SECOND FACEMASK, A NORMALLY CLOSE, PRESSURE-COMPENSATED CHECK VALVE POSITIONED IN SAID OUTLET LINE FOR PERMITTING A UNIDIRECTIONAL FLOW OF GAS TO TAKE PLACE FROM SAID FACEMASK AREA OUT SAID OUTLET LINE, SAID PRESSURE-COMPENSATED CHECK CALVE REMAINING CLOSED WHENEVER GAS IS FORCED FROM SAID INLET LINE THROUGH SAID FIRST CHECK VALVE INTO THE FACEMASK AREA OF SAID SECOND FACEMASK DURING THE RESUSCITATION ATTEMPT; FIRST AND SECOND AIR LOOPS INTERCONNECTING SAID SUPPLY AND DISCHARGE LINES AND SAID INLET AND OUTLET LINES, RESPECTIVELY; A SOURCE OF COMPRESSED OXYGEN, SAID SOURCE OF COMPRESSED OXYGEN BEING COUPLED TO SAID FIRST AND SECOND LOOPS; MEANS FOR RELEASING FRESH OXYGEN FROM SAID SOURCE INTO SAID FIRST LOOP IN ACCORDANCE WITH THE BREATHING REQUIREMENTS OF SAID RESCUER; AND A BREATH PUMP COUPLED TO SAID FIRST AND SECOND LOOPS, SAID BREATH PUMP BEING OPERATED BY THE BREATHING ACTION OF SAID RESCUER TO INTERMITTENTLY RELEASE OXYGEN FROM SAID SOURCE INTO SAID SECOND LOOP AND TO FORCE THE OXYGEN SO RELATED AND ANY OTHER GAS MIXTURE WITHIN SAID SECOND LOOP INTO SAID INLET LINE THROUGH SAID FIRST CHECK VALVE AND INTO THE FACEMASK AREA OF SAID SECOND FACEMASK.