Aerosol apparatus having a chamberlike deflector

Claim 1

A DISPENSER FOR AN AEORSOL DISPERSION, COMPRISING AN ELONGATED TUBE HAVING A FIRST END OPENING DIRECTLY INTO THE OPEN AIR AND AN AT LEAST PARTLY OPEN SECOND END COMMUNICATING WITH THE ATMOSPHERE; SUPPLY MEANS OUTSIDE SAID TUBE FOR DELIVERING A MIXTURE OF A PROPELLANT AND A CONVEYED SOLUTION; A NOZZLE CONNECTED TO SAID SUPPLY MEANS AND EXTENDING AXIALLY WITHIN SAID TUBE AT A LOCATION REMOTE FROM SAID FIRST END AND CLOSE TO SAID SECOND END, SAID NOZZLE HAVING A SINGLE ORIFICE ON THE TUBE AXIS FACING SAID FIRST END FOR DISCHARGING SAID MIXTURE AXIALLY INTO SAID TUBE TOWARD SAID FIRST END, THE INSIDE OF SAID TUBE BEING UNOBSTRUCTED BETWEEN SAID ORIFICE AND SAID FIRST END, THE EFFECTIVE LENGTH OF SAID TUBE FROM SAID ORIFICE TO SAID FIRST END RANGING BETWEEN SUBSTANTIALLY 3 AND 10 TIMES ITS INNER DIAMETER AND BEING AT LEAST EQUAL TO 10 CM., SAID INNER DIAMETER LYING BETWEEN SUBSTANTIALLY 1 AND 4 CM., SAID ORIFICE HAVING A DIAMETER BETWEEN SUBSTANTIALLY 0.1 AND 0.3 MM; AND NORMALLY CLOSED VALVE MEANS AT SAID NOZZLE SELECTIVELY OPERABLE TO TRIGGER THE DISCHARGE OF SAID MIXTURE IN THE FORM OF A DIVERGENT SPRAY CONE STRIKING, THE WALL OF SAID TUBE AHEAD OF SAID FIRST END, RESULTING IN AN AEROSOL DISPENSION WITH PARTICLE SIZES RANGING BETWEEN 0.5 AND 5 MICRONS IN DIAMETER.