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Electric filter with movable belt electrode

  • US 4,405,342 A
  • Filed: 02/23/1982
  • Issued: 09/20/1983
  • Est. Priority Date: 02/23/1982
  • Status: Expired due to Fees
First Claim
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1. A method for removing contaminants from an air stream, comprising:

  • providing an electric filter characterized by a movable, endless, perforated belt electrode having a plurality of pleats arranged generally longitudinally with respect to the flow of a gas stream, a grounded electrode adapted to fit in a closely-mated, spaced-apart relationship with said belt electrode, and a filter medium sandwiched between and engaged with said electrodes;

    polarizing said filter medium by forming an electric field between said electrodes;

    passing an air stream through said electric filter in a direction generally longitudinal with respect to said pleats; and

    collecting contaminants dispersed throughout said air stream on said filter medium.

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