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Water filtration and sterilisation device

  • US 8,747,664 B2
  • Filed: 11/13/2007
  • Issued: 06/10/2014
  • Est. Priority Date: 11/14/2006
  • Status: Active Grant
First Claim
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1. A water filtration and sterilisation device, comprising:

  • a casing comprising a first container and a second container within the casing, the first container and the second container each being configured to contain water therein, the first container comprising a base having a recess, the recess comprising a first outlet conduit in fluid communication between the first container and the second container, the second container having an outlet and a second outlet conduit;

    a closure valve coupled to said first outlet conduit;

    a filter upstream of said first outlet conduit;

    a flow prevention means coupled between said second container outlet and said second outlet conduit;

    an ultra violet radiation source within said second container; and

    a controller, wherein the controller is configured to;

    open the closure valve for a first time period to admit water into the second container via the filter;

    operate the ultra violet radiation source for a second time period to sterilise water in the second container; and

    operate said flow prevention means to deliver sterilised water on demand from the second container; and

    wherein said first time period is shorter than said second time period.

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