Canister filter system with drain that cooperates with filter element

US9511314B2 · kind B2 · utility

Assignees

• Caterpillar Inc. · US
• Donaldson Company, Inc. · US
• Advanced Filtration Systems, Inc. · US

Inventors

• Mark T. Allott · Mapleton, US
• David Ofori-Amoah · Chicago, US
• Christopher J. Salvador · Peoria, US
• Randall W. Heibenthal · Mahomet, US
• Dennis M. Deedrich · Champaign, US
• David B. Harder · Burnsville, US
• John R. Hacker · Edina, US
• Richard J. Eisenmenger · Champaign, US

Key dates

• Filing date: Jul 29, 2013
• Grant date: Dec 6, 2016
• Expiry date: Jan 20, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2201/295
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter element disclosed herein includes a center tube defining a central reservoir and including an interior sidewall. The filter element further includes an end plate and a pocket defining a port extending from the end plate into the central reservoir. The pocket includes an inner wall, an outer wall, and a plurality of projections extending from the outer wall of the pocket toward the interior sidewall of the center tube.