Z-filter media pack arrangement; and, methods

  • US RE46,700 E1
  • Filed: 01/11/2017
  • Issued: 02/06/2018
  • Est. Priority Date: 06/08/2004
  • Status: Active Grant
First Claim
Patent Images

1. An air filter cartridge comprising:

  • (a) a coiled media combination comprising a fluted sheet secured to a facing sheet and defining a set of inlet flutes and a set of outlet flutes extending between first and second, opposite, media combination flow ends;

    the coiled media combination defining;

    (i) a coil having a center extending between the first and second, opposite, media combination flow ends and an outer sidewall extending between the first and second, opposite, media combination flow ends; and

    ,(ii) a media combination lead end positioned inside of the coil center; and

    ,(b) a mold-in-place center resulting from putting a sealant material into an open end of the center of the coil and allowing the sealant to seal at least a portion of the lead end and to close the center against air flow therethrough.

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