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Circular waveguide plasma microwave sterilizer apparatus

  • US 5,184,046 A
  • Filed: 09/28/1990
  • Issued: 02/02/1993
  • Est. Priority Date: 09/28/1990
  • Status: Expired due to Term
First Claim
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1. An apparatus for plasma sterilization comprising:

  • a sterilization chamber;

    a plasma container made of a material transparent to an electromagnetic radiation, said plasma container having a gas inlet for admitting a plasma generation gas and a plasma product outlet conduit for passing plasma gas products into said sterilization chamber;

    at least one microwave plasma generator for producing plasma gas products in said plasma container, said microwave plasma generator further comprising;

    a magnetron for generating electromagnetic radiation,a cylindrical metal waveguide enclosing said plasma container for guiding the electromagnetic radiation thereto, andan axially concentric magnetron antenna extending into the cylindrical waveguide for feeding the electromagnetic radiation from the magnetron to the cylindrical waveguide.

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