Filter with variable pleat depth

US7879125B2 · kind B2 · utility

Assignee

• Cummins Filtration IP, Inc. · US

Inventors

• William C. Haberkamp · Cookeville, US
• Jerald J. Moy · Stoughton, US
• Eric A. Janikowski · Jefferson, US
• Mark A. Terres · Stoughton, US
• Scott P. Heckel · Stoughton, US

Key dates

• Filing date: Dec 8, 2009
• Grant date: Feb 1, 2011
• Expiry date: Dec 8, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2275/208
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter is provided by pleated filter media having a plurality of pleats defined by wall segments extending axially along an axial direction along an axis and extending transversely along a transverse direction between first and second sets of pleat tips at first and second sets of axially extending bend lines. The pleated filter media spans laterally along a lateral span along a lateral direction, with the wall segments being spaced from each other by lateral gaps. The pleats have a pleat depth along the transverse direction along the wall segments between the first and second sets of pleat tips. The pleat depth varies as the pleated filter media spans laterally along the lateral direction.