Donaldson Comapny, Inc.

Stan M Koehler

Gary Ray Gillingham

Thomas G Miller

Fred H Wahlquist

William Krisko

Eugene D Wilson

Ervin P Fuchs

Winston E Olson

John R Hacker

Brent A Gulsvig

A V-pack filter includes a frame construction having a first frame structure and a second frame structure. The V-pack filter also includes first and second panel sections mounted in extension between the first and second frame structures. The first panel section has first and second ends. The second panel section has third and fourth ends. The first and third ends have a first distance therebetween while the second and fourth ends have a second distance therebetween. The second distance is generally greater than the first distance. The first and second panel sections and the second frame structure define an air flow aperture. A seal arrangement circumscribes the air flow aperture and projects outwardly from the second frame structure. The first frame structure defines a first receiver indent. Assemblies and methods are also included.

Multistage air cleaner including pulse cleaning system

A filter assembly including a replaceable filter cartridge for use with a reusable filter canister. The filter cartridge includes a cylindrical filter media having top and bottom ends respectively mounted within top and bottom end caps. The bottom end cap includes a sidewall that surrounds at least a lower portion of the filter media. A contaminant containment chamber is defined between the sidewall and an outer side of the filter media. When the cartridge is mounted within the canister, the radial sealing element engages an inner surface of the canister to provide a circumferential seal. The sidewall also includes a living hinge positioned below the sealing element.

Filter cartridge for a filter assembly

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Eden Prairie, MN, United States of America

Stan M Koehler