Cylindrical pleated air filter with top and sidewall filtering areas

Description

FIG. 1 is a side elevational view of an air filter showing our new design, the other sides being identical to that shown;

FIG. 2 is a bottom plan view;

FIG. 3 is a top plan view;

FIG. 4 is a perspective view;

FIG. 5 is an enlarged fragmentary sectional view taken along line 5--5 of FIG. 3 ; and,

FIG. 6 is an enlarged fragmentary perspective view showing details of the pleats.