Greco gas mixer apparatus

Claim 1

A GAS MIXER WHICH COMPRISES MEANS PROVIDING A CHAMBER, MEANS IN THE MIXER FORMING SEPARATE INLETS FOR TWO GASES TO THE CHAMBER, A DOUBLE-CONED VALVE MEMBER IN SAID CHAMBER HAVING A STEM PORTION AND TWO OPPOSED JOINED GAS DEFLECTING AND SPREADING SURFACES, EACH OF SAID OPPOSED SURFACES FLARING OUTWARDLY IN A SMOOTH AND CONTINUOUS CURVE FROM SAID STEM PORTION TO THE OUTERMOST DIAMETER OF SAID VALVE MEMBER, SAID CHAMBER HAVING OPPOSITE ENDS COMMUNICATING WITH SAID INLETS EXTENDING TOWARD EACH OTHER FROM THE ENDS, THE CHAMBER BEING ENLARGED BETWEEN SAID ENDS AND PROVIDED WITH OPPOSED VALVE SEATS AT EACH END OF THE ENLARGEMENT, THE ENLARGED PORTION OF THE VALVE AT THE OUTERMOST DIAMETER OF THE VALVE EXTENDING INTO THE ENLARGED PORTION OF THE CHAMBER SO THAT EACH OF THE OPPOSED SURFACES MAY ENGAGE ALTERNATIVELY WITH A VALVE SEAT, THE WALLS OF SAID CHAMBER BEING SHAPED TO DIRECT THE TWO GASES COAXIALLY TOWARD EACH OTHER SO AS TO IMPINGE ON SAID RESPECTIVE SURFACES AND SO THAT THE IMPINGING OF THE GASES ON SAID SURFACES CAUSES INTIMATE MIXING, SAID VALVE MEMBER BEING MOUNTED FOR LONGITUDINAL MOVEMENT TOWARD ONE VALVE SEAT AND AWAY FROM THE OTHER AT ANY ONE TIME FOR PROPORTIONING THE RELATIVE AMOUNTS OF SAID TWO GASES, SAID CHAMBER HAVING AN OUTLET COMMUNICATING WITH THE JUNCTURE OF SAID TWO SURFACES FOR CONDUCTING OUT THE GAS MIXTURE FORMED.