Filter element, air cleaner, and methods

Details Filter element, air cleaner, and methods Filter element, air cleaner, and methods

2011-08-30

2011-08-30

Smith, Duane (Department: 1776)

Gas separation: processes

Filtering

C055S357000, C055S498000, C055S501000, C055S502000, C055SDIG007

Reexamination Certificate

active

08007572

ABSTRACT:
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.

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Complaint with Exhibits A-F;Donaldson Company, Inc. v.Mann+Hummel USA, Inc. andMann+Hummel GmbH, United States District Court District of Minnesota, Case 0:07-cv-04136 MJD-SRN filed Oct. 1, 2007.
Notice of Claims Involving Patents;Donaldson Company, Inc. v.Mann+Hummel USA, Inc. andMann+Hummel GmbH, United States District Court District of Minnesota, Case 0:07-cv-04136 MJD-SRN filed Oct. 1, 2007.
Rule 7.1 Disclosure Statement of Plaintiff Donaldson Company, Inc.;Donaldson Company, Inc. v.Mann+Hummel USA, Inc. andMann+Hummel GmbH, United States District Court District of Minnesota, Case 0:07-cv-04136 MJD-SRN filed Oct. 1, 2007.
Civil Cover Sheet;Donaldson Company, Inc. v.Ma

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