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Field Water Purification System Filter

  • US 20150014247A1
  • Filed: 09/30/2014
  • Published: 01/15/2015
  • Est. Priority Date: 04/28/2008
  • Status: Active Grant
First Claim
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1. A flat water filter including:

  • a water tight enclosure formed between two layers of a polymeric material;

    a filter inlet fluidly coupled to the water tight enclosure;

    a filter outlet fluidly coupled to the water tight enclosure;

    a filter envelope including a quantity of filter media, the filter envelope being disposed within the water tight enclosure, the flat water filter having a minimal thickness when not filled with water, the filter envelope being formed by a first plurality bonded segments of the two layers of polymeric material; and

    an outer channel having a first side formed by the water tight enclosure and a second side opposite from the first side, the second side including a second plurality of bonded segments of the two layers of polymeric material interspersed with a plurality of nonbonded segments of the two layers of polymeric material, the nonbonded segments defining a plurality of openings in an intermittent barrier between the outer channel and the filter media.

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