Patent ID: 8480779

Claim:
An air filter cartridge comprising: (a) a stack of strips of filter media; (i) each strip of filter media comprising a sheet of corrugated media secured to a facing sheet; (A) each strip of filter media having front and rear edges and side edges extending therebetween; (B) the stack of strips defining opposite inlet and outlet flow faces with a set of inlet flutes and a set of outlet flutes extending therebetween; and, (C) the stack of strips having a first pair of first and second, opposite, side faces extending between the inlet and outlet flow faces; and (b) first and second opposite molded side pieces; (i) the first molded side piece having a first side edge of each strip of filter media in the stack of strips embedded therein, during molding of the first molded side piece, to seal the first side edge of each strip of filter media; and, (ii) the second molded side piece having a second side edge of each strip of media in the stack of strips embedded therein, during molding of the second molded side piece, to seal the second side edge of each strip of filter media; (c) the media stack defining a second pair of first and second, opposite, side faces extending between the first pair of first and second, opposite, side faces; (ii) the first and second, opposite, side faces, of the second pair, each having a portion extending between the first and second molded side pieces that is not covered by an molded-in-place side piece.