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In-line moisture filter usable in an improved packaging system for a sterilizable calibratable medical device

  • US 5,143,617 A
  • Filed: 12/20/1990
  • Issued: 09/01/1992
  • Est. Priority Date: 12/20/1990
  • Status: Expired due to Fees
First Claim
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1. An in-line moisture filter comprising a longitudinal outer housing having opposite ends, a filter element comprising moisture absorbent material disposed in the housing to remove liquid from gases passing through the filter, a plurality of internal ribs located in spaced relation on an inner peripheral wall of the housing, each extending longitudinally along said inner wall of the housing, to support and displace the filter element from the inner peripheral wall of the housing, thus to define passages within the housing between the ribs and the filter element containing the absorbent material, to enable gases flowing through said passages for drying to experience no significant pressure drop in their flow from one end of the filter housing to the other, the gasses flowing through an interior portion of the housing not passing through the absorbent material in the filter element, but rather through the passages between the housing and the filter element provided by said ribs, thereby to extract moisture from said gases passing through the filter.

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