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Method and apparatus for controlling electrostatic charges in fluidized beds

  • US 4,779,163 A
  • Filed: 03/05/1984
  • Issued: 10/18/1988
  • Est. Priority Date: 07/23/1982
  • Status: Expired due to Fees
First Claim
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1. A fluidized bed device for thermal operations on a workpiece adapted to minimize electrostatic charge comprising:

  • at least one enclosure having means for expanding a mass of solid particles therein, said enclosure having a means for supporting a workpiece disposed therein comprising a basket means, having surfaces adapted to allow the passage of fluidized particles to pass therethrough;

    said surfaces being in electrical communication with an electrical ground;

    a mass of solid particles within the enclosure, at least some of said particles selected from the group consisting of electrically conductive and semi-conductive materials;

    means for contacting the expanded mass with the conductive surfaces; and

    means for controlling the temperature within said enclosure.

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