Patent ID: 8500839
Filing Date: 2013-08-06
Classification: B01D

Abstract:
1. A method of forming a panel filter having a metal screen only on one side, comprising: pleating filter media to form a pleated filter media having pleat tips on opposed sides; applying a load to a metal screen to provide a spring force; bonding the metal screen to the pleat tips on one of the opposed sides of the pleated filter media; cutting the metal screen and the pleated filter media to form a rectangular filter media card having a segment of pleated filter media with a segment of the metal screen on only one side, the filter media card having a first cut end and a second cut end, wherein the spring force in the metal screen forms the rectangular filter media card into an arcuate shape; and jacketing the rectangular filter media card in a panel frame, thereby forming the panel filter having a metal screen only on one side.