Filter arrangement; sealing system; and methods

  • US 6,190,432 B1
  • Filed: 02/26/1999
  • Issued: 02/20/2001
  • Est. Priority Date: 02/26/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. An engine air flow system comprising:

  • (a) an engine having a rated air flow of at least 500 cfm and an air intake duct; and

    (b) a filter element construction including a media pack and a sealing system;

    (i) said media pack having first and second opposite flow faces;

    said media pack being constructed and arranged for air to flow into said media pack through said first flow face, and for air to exit said media pack through said second flow face;

    (A) said media pack having a longitudinal axis passing through said first flow face and said second flow face;

    (ii) said sealing system comprising a frame arrangement and a seal member;

    (A) said frame arrangement including an extension projecting axially from one of said first and second flow faces and in a same direction as said longitudinal axis;

    (B) said seal member being supported by said extension of said frame arrangement; and

    (C) said seal member forming a radial seal between and against said extension and said air intake duct.

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