Electrostatic separator

• US 3,096,277 A
• Filed: 03/27/1961
• Issued: 07/02/1963
• Est. Priority Date: 03/27/1961
• Status: Expired due to Term

• Current Assignee: Thomas E. Maestas
• Original Assignee: Thomas E. Maestas
• Inventors: Maestas, Thomas E.
• Application Number:
  US04/098,576
• Time in Patent Office: 827 Days
• US Class Current: 209/20
• CPC Class Codes: B03C 7/08 with material carriers in the form of belts

Claims

1. IN APPARATUS FOR THE ELECTROSTIC SEPARATION AND CLASSIFICATION OF COMMINUTED MATERIAL OF THE TYPE HAVING AN ENDLESS PRIMARY CONVEYOR BELT WHOSE UPPER SURFACE IS ADAPTED TO MOVE FROM A RECEIVING TERMINAL TO A DISCHARGE TERMINAL, MEANS AT THE RECEIVING TERMINAL ADAPTED TO DEPOSIT MATERIAL UPON THE UPPER SURFACE OF THE BELT, MEANS AT THE DISCHARGE TERMINAL ADAPTED TO RECEIVE MATERIAL DROPPING FROM THE BELT, MEANS IN THE BELT REACH BETWEEN THE TERMINALS INCLUDING ELECTRODE PLATES ABOVE AND UNDERNEATH THE UPPER SURFACE OF THE BELT ADAPTED TO CREATE AN ALTERNATING ELECTROSTATIC FIELD ON THE BELT SURFACE WITH AN INTENSITY SUFFICIENT TO AGITATE AND LIFT ELECTROSTATICALLY SENSITIVE PARTICLES FROM THE BELT SURFACE AND MEANS ADAPTED TO INITIATE A TRANSVERSE MOVEMENT OF THE LIFTED PARTICLES AND SHIFT THEM LATERALLY ACROSS THE BELT AND OVER THE SIDE THEREOF, AND INCLUDING IN COMBUNATION THEREWITH, A SERIES OF GENERALLY LONGITUDINALLY DISPOSED RIFFLES ON THE BELT SURFACE ADAPTED TO INTERRUPT THE LATERAL FLOW OF PARTICLES TO THE SIDE OF THE BELT.