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Apparatus for ultraviolet disinfection of water

  • US 6,099,799 A
  • Filed: 03/13/1998
  • Issued: 08/08/2000
  • Est. Priority Date: 03/14/1997
  • Status: Expired due to Term
First Claim
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1. An apparatus for liquid disinfection, comprising:

  • a hollow elongate vessel;

    an outer hollow elongate sleeve, capable of passing disinfecting radiation therethrough, located within said hollow vessel and cooperating therewith to define an annular shaped fluid tight outer flow channel between itself and said hollow vessel;

    an inner hollow elongate sleeve, capable of passing disinfecting radiation therethrough, located within said outer hollow elongate sleeve and cooperating therewith to define an annular shaped fluid tight inner flow channel between itself and said outer hollow elongate sleeve, wherein said inner flow channel is out of fluid communication relative to said outer flow channel, said inner hollow elongate sleeve forming an interior space;

    a disinfecting radiation source positioned in the interior space of said inner hollow elongate sleeve to irradiate liquid in said inner flow channel and said outer flow channel;

    means for circulating a liquid through said inner flow channel; and

    means for circulating a liquid through said outer flow channel.

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