Patent ID: 6830685
Filing Date: 2004-12-14
Classification: B01D

Abstract:
A filter device comprising:a housing having a first end; a first ring joinable to said first end wherein said first ring has a first annular anchor on an interior portion of said first ring, wherein said first annular anchor has an upper surface and a lower surface; a first flange cap joinable to said first ring forming a first seal, wherein said first flange cap is separated from contact with said first end of said housing by said first ring; a plurality of microfibers extending from said first ring through said housing; a first potting material encasing said plurality of microfibers at said first ring and encasing said upper surface and said lower surface of said first annular anchor forming a second seal; and a first plurality of rounded ridges on an upper surface of said first annular anchor and a second plurality of rounded ridges on said lower surface of said first annular anchor; wherein said first annular anchor receives a surface treatment, wherein said surface treatment modifies a surface energy of said first annular anchor, and further wherein said first and second plurality of rounded ridges on said first annular anchor minimizes a delamination of said first potting material from said first annular anchor, and increases a surface area of said first annular anchor treatable through said surface treatment.