Process of aspirating and spraying using a swirling fluid jet

Claim 1

AN ASPIRATING PROCESS COMPRISING DIRECTING AT LEAST ONE JET OF PRESSURIZED GAS ALONG THE INTERIOR SURFACE OF A UNIFORM HOLLOW CONE WHICH IS ENCLOSED AT THE BASE AND OPEN AT THE APEX, SAID PRESSURIZED GAS JET BEING CHARGED DIRECTLY AT THE SURFACE OF SAID CONE AND RELATIVELY CLOSE TO THE BASE OF SAID CONE, SAID PRESSURIZED GAS JET DIRECTED FORWARDLY TOWARD SAID OPEN APEX ALONG A PATH WHICH IS TANGENTIAL WITH RESPECT TO THE CONICAL SURFACE SO THAT SAID JET IS BOTH SWIRLED AND RAPIDLY DISCHARGE THROUGH THE APEX OF SAID CONE WITHOUT SUBSTANTIAL ACCUMULATION THEREIN, THE OPENING THROUGH WHICH SAID JET ENTERS SAID CONE BEING RESTRICTED SO THAT THE QUANTITY OF AIR IN SAID JET IS LIMITED AND SAID JET ONLY BEING CHARGED DIRECTLY AT THE SURFACE OF SAID CONE AND RELATIVELY REMOTE FROM THE LONGITUDINAL AXIS OF SAID CONE SO THAT SAID PRESSUREIZED GAS JET SWIRLS ALONG SAID CONICAL SURFACE AS A RELATIVELY THIN FILM IN CLOSE PROXIMITY TO THE CONICAL WALL SURFACE PERMITTING THE AXIAL PORTION OF SAID CONE TO REMAIN RELATIVELY FREE OF PRESSURIZED GAS AND THEREBY FORMING AN EVACUATED VORTEX ALONG THE AXIS OF SAID CONE, EXPOSING A FLUID UNDER SUBSTANTIALLY ATMOSPHERIC PRESSURE TO SAID VORTEX THROUGH THE TERMINAL OPENING OF AN AXIAL DUCT EXTENDING FROM THE BASE OF SAID CONE TO AN INTERMEDIATE AXIAL POSITION WITHIN SAID CONE, THE OUTER SURFACE OF SAID AXIAL DUCT HAVING A SUBSTANTIALLY CYLINDRICAL CONFIGURATION SO THAT THE ONLY AXIAL COMPONENT OF MOVEMENT OF SAID PRESSURIZED GAS IN THE VICINITY OF AXIAL DUCT TERMINAL OPENING IS PARALLEL TO THE AXIS OF THE CONE, SAID SWIRLING PRESSURIZED GAS JET ASPIRATING FLUID THROUGH SAID AXIAL DUCT TERMINAL OPENING, AND DISCHARGING A SWIRLING SPRAY COMPRISING A MIXTURE OF SAID PRESSURIZED GAS AND SAID FLUID THROUGH THE OPENING AT THE APEX OF SAID CONE.