Method and apparatus for a filter assembly

  • US 5,766,472 A
  • Filed: 10/29/1996
  • Issued: 06/16/1998
  • Est. Priority Date: 10/29/1996
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of making a filter assembly, comprising the steps of:

  • encapsulating a filter element, having a plurality of openings, within a filter element carrier during a first operation;

    forming a first hole through the filter element carrier during the first operation such that the first hole interconnects a first side portion of the filter element carrier and a second side portion of the filter element carrier and exposes a portion of the filter element encapsulated within the filter element carrier and disposed between the first side portion and the second side portion of the filter element carrier;

    forming a first sealing element on the first side portion of the filter element carrier with a molten sealing element material during a second operation;

    forming a second sealing element on the second side of the filter element carrier with the molten sealing element material during the second operation; and

    conducting the molten sealing element material through the openings of the filter element portion exposed by the first hole through the filter element carrier so as to form a third sealing element whereby the first sealing element formed on the first side portion of the filter element carrier is interconnected to the second sealing element formed on the second side portion of the filter element carrier by the third sealing element formed through the openings of the filter element portion exposed by the first hole through the filter element carrier.

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