Cotton cleaning method and apparatus

Claim 1

APPARATUS FOR SEPARATING MATERIALS ACCORDING TO VARIATIONS IN SIZE AND DENSITY COMPRISING, A FIRST SEPARATOR CHAMBER, A MATERIAL INLET TO THE FIRST SEPARATOR CHAMBER, FIRST BLOWER MEANS TO INDUCE THE FLOW OF MATERIALS IN A PATH THROUGH SAID CHAMBER, BAFFLE MEANS IN SAID CHAMBER PROJECTING ACROSS THE MATERIALS INLET AND THE PATH OF MATERIAL FLOW THROUGH THE INLET TO SELECTIVELY DEFLECT THE LARGER SIZED MATERIALS OUT OF THE PATH OF FLOW, A SECOND SEPARATOR CHAMBER, AND AIR VALVE MEANS BETWEEN SAID FIRST SEPARATOR CHAMBER AND SECOND SEPARATOR CHAMBER FOR MECHANICALLY ADVANCING THE DEFLECTED MATERIAL THROUGH SAID SECOND CHAMBER WHILE ISOLATING SAID CHAMBERS FROM ONE ANOTHER, AIR FLOW CONTROL MEANS ASSOCIATED WITH SAID SECOND CHAMBER INCLUDING AN OUTLET AND SECOND BLOWER MEANS TO ESTABLISH A CURRENT OF AIR FLOWING COUNTER TO THE MOVEMENT OF THE MATERIAL THROUGH SAID SECOND CHAMBER BEING TO SUFFICIENT FORCE TO SEPARATE THE RELATIVELY LOW DENSITY MATERIALS FROM THE MAIN STREAM OF MATERIAL FLOW OF SEPARATE REMOVAL THROUGH SAID OUTLET, AND MEANS FOR COLLECTING THE REMAINING MATERIAL IN SAID SECOND CHAMBER.