Patent · US Active

Filter element, air cleaner, and methods

US8449638B2 · kind B2 · utility

13Cited by

108References

20Claims

0Family size

Assignee

Donaldson Company, Inc. · US

Inventors

Steven Scott Gieseke · Richfield, US
William Juliar · Coon Rapids, US
Edward A. Steinbrueck · Eden Prairie, US
Wayne R. W. Bishop · St. Louis Park, US
Patrick Golden · Roseville, US
Wayne C. Musselman · Big Lake, US

Key dates

Filing date	Aug 29, 2011
Grant date	May 28, 2013
Priority date	—
Expiry date	Aug 29, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/4973
WIPO fieldChemical engineering
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.