Patent ID: 6270704
Filing Date: 2001-08-07
Classification: B01D,B29C,Y10S

Abstract:
A method of forming a seal for a pleated filter media having an upstream dirty side, a downstream clean side, and an end joining the sides, comprising:juxtaposing the end of the pleated filter media with a mold face of a blow mold wherein the end extends between the downstream clean side and upstream dirty side of the filter media;slanting the mold face at an acute angle with respect to the horizontal to increase the distance between the mold face and the end of the filter media between the downstream clean side and the upstream dirty side;providing a pool of liquid on the slanting mold face, which liquid expands as it cures into a solid body, whereby the height of the solid body is greater at the upstream dirty side of the filter media than at the downstream clean side of the filter media.