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Fluid purification device

  • US 3,923,663 A
  • Filed: 07/22/1974
  • Issued: 12/02/1975
  • Est. Priority Date: 07/22/1974
  • Status: Expired due to Term
First Claim
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1. A fluid purification device comprising a housing defining a chamber therein and having inlet and outlet ports communicating with said chamber;

  • a guide tube in said chamber, one end of said guide tube being supported by said housing in fluid flow communication with said outlet port, the other end thereof being in fluid flow communication with said inlet port;

    a tubular filter element in said chamber surrounding said guide tube and in the path of fluid flow from said inlet port to said other end of said guide tube; and

    an elongate ultraviolet lamp unit removably mounted on said housing and extending into said guide tube, spaced inwardly therefrom and defining a flow channel therebetween, said lamp unit including a transparent envelope having a thin continuous solid film of non-stick material surrounding, fixed to and in intimate contact with the outer surface of said envelope, said lamp and film being axially removable from said housing as a unit.

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