System and method for maintaining efficiency of screening particles under varying conditions of moisture content

Claim 1

THE METHOD OF INCREASING THE THROUGHPUT OF PARTICLES ON A PARTICLE SIZING SCREEN AND COMPRISING: LOADING SAID PARTICLES ONTO SAID SCREEN; ESTABLISHING A PLURALITY OF AIR JET STREAMS SPACED APART FROM ONE ANOTHER LOCATED AT A DISTANCE ABOVE SAID SCREEN SUBSTANTIALLY EQUAL TO THE DISTANCE SEPARATING ADJACENT SAID JET STREAMS AND DIRECTED ON PARALLEL AXES SUBSTANTIALLY NORMAL TO SAID SCREEN AND DIVERGING OUTWARDLY AT AN ANGLE OF ABOUT THIRTY DEGREEWS FROM SAID AXIS TO DEFINE SUBSTANTIALLY CONICAL SHAPED PATHS; CONTINUOUSLY TRAVERSING SAID AIR JET STREAMS OVER SAID SCREEN TO EFFECT CONTINUOUS SCANNING OF THE ENTIRE AREA OF SAID SCREEN BY SAID JET STREAMS AND TO ACCELERATE PASSAGE OF THE SMALLER OF SAID PARTICLES THROUGH SAID SCREEN WHILE CONTINUALLY DISTURBING THE LARGER SAID PARTICLES RETAINED THEREBY; CHANGING THE DIRECTION OF SAID TRAVERSING MOTION OF SAID AIR JET STREAMS WHILE THE SAME ARE IN TRAVERSING MOTION AS AFORESAID; AND, REMOVING SAID RETAINED PARTICLES.