Pleated filter media with embossed spacers and cross flow

  • US 7,122,068 B2
  • Filed: 11/30/2004
  • Issued: 10/17/2006
  • Est. Priority Date: 05/01/2001
  • Status: Active Grant
First Claim
Patent Images

1. A pleated filter element with sealed edges and embossments projecting from at least one side of a filter media, the filter media including panels defined by pleats, wherein each panel has top and bottom sections adjacent the pleats and the middle section between the top and bottom sections, each pleat panel having a plurality of embossments in the middle section arranged in a labyrinth with some of the embossments being elongated and spaced to form gaps that allow fluid to flow between the embossments and wherein some embossments extend continuously from the top section to the bottom section to form channels directing fluid flow in a direction transverse to the top and bottom sections, whereby no direct path exists through the middle section from one sealed edge to the opposite sealed edge through embossment gaps.

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