Patent ID: 8852310

Claim:
A pleated filter media extending in an axial direction, a transverse direction that is perpendicular to the axial direction, and a lateral direction that is perpendicular to the axial direction and perpendicular to the transverse direction, the pleated filter media comprising: a plurality of pleats comprised of pleat segments extending in the axial direction between first and second axial ends and extending in the transverse direction between first and second sets of pleat tips at least partially defined by first and second sets of bend lines; wherein axial flow channels are defined between the pleat segments in the lateral direction and wherein the plurality of pleats has a width in the transverse direction that varies along the axial direction, the width of the plurality of pleats in the transverse direction varying along a portion of the plurality of pleats, and wherein the portion of the plurality of pleats includes a curvilinear portion joining one of the first and second axial ends to one of the first and second sets of pleat tips.