MANUFACTURING MOLDED PLEATED FILTER CARTRIDGE WITH NO HORIZONTAL EXTENDING LEDGES

摘要

An end cap is molded to a pleated filter. The pleated filter includes an opening in a center thereof. A bottom end of the pleated filter is sealed, and the bottom end is filled with a molding material. The molding material extends into pleats of the pleated filter without extending between the pleats of the pleated filter. The resulting end cap is without horizontal extending ledges.

主权项

1. A method of molding a star-shaped end cap to a pleated filter, the method comprising:
(a) filling a mold with a molding material; (b) securing the pleated filter in a sleeve, the sleeve including a central opening aligned with a corresponding opening in the pleated filter; (c) after step (b), pressing the pleated filter and the sleeve into the mold such that the molding material expands through the central opening and the corresponding opening into pleats of the pleated filter; and (d) after step (c), allowing the molding material to cure.