Donaldson Comapny, Inc.

Wayne C Musselman

Steven Scott Gieseke

William M Juliar

Edward A Steinbrueck

Patrick Golden

Wayne R W Bishop

Wayne Rw Bishop

A filter arrangement includes a filter element, a frame construction secured to the filter element, and a handle member secured to the filter element. In preferred embodiments, the handle member is secured to the frame construction. Preferably, the filter element includes a central core member, wherein fluted filter media is coiled around the central core member. Preferably, the central core member includes a plurality of corrugations, wherein the corrugations mateably engage at least some flutes. Preferably, the handle member is integral with the central core member, and also includes a fastening member for connection to a frame construction on the filter element. Methods for cleaning air and servicing an air cleaner preferably include constructions as described herein.

Filter element, air cleaner, and methods

Centerpiece for filter element

Filter element with centerpiece

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Big Lake, MN, United States of America

Wayne C Musselman