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US 5,184,046 AGranted
Circular waveguide plasma microwave sterilizer apparatus
AssigneeAbtox, Inc.
InventorBryant A. Campbell
Life of this patent
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Abstract
An apparatus for plasma sterilization including a sterilization chamber and at least one microwave plasma generator for producing gas plasma products communicating therewith. The mircowave plasma generator includes a cylindrical metal waveguide and an axially concentric magnetron antenna extending into the waveguide. The plasma generator includes an inner plasma container made of a electromagnetic transparent material.
Claims3
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, and
- an axially concentric magnetron antenna extending into the cylindrical waveguide for feeding the electromagnetic radiation from the magnetron to the cylindrical waveguide.
3 more elements
Dependencies are inferred from the claim text.