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Gas humidification system using water permeable membranes

  • US 5,996,976 A
  • Filed: 04/30/1996
  • Issued: 12/07/1999
  • Est. Priority Date: 07/13/1993
  • Status: Expired due to Fees
First Claim
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1. A humidifier comprising:

  • (a) a water permeable polymer sheet having two sides, a perimeter edge and a plurality of substantially parallel gas passages extending within the sheet from points along the perimeter edge to opposing points along the perimeter edge, said sheet and passages being an integral piece of material with the passages being voids within the sheet itself; and

    (b) a water chamber formed in communication with at least a portion of the water permeable polymer sheet.

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