Patent · US Active

Z-filter media pack arrangement; and, methods

US7967886B2 · kind B2 · utility

128Cited by

61References

18Claims

0Family size

Assignee

Donaldson Company, Inc. · US

Inventors

Kevin Schrage · Spring Valley, US
Eugene Lensing · Spillville, US
Jeff Rahlf · Elma, US
Wayne R. W. Bishop · St. Louis Park, US
Gregory Reichter · Bloomington, US
Benny K. Nelson · Waconia, US
Rodger I. Spears · Bigfork, US
Bruce Crenshaw · Frankfort, US
Vladimir Kladnitsky · Eagan, US

Key dates

Filing date	Jun 6, 2005
Grant date	Jun 28, 2011
Priority date	—
Expiry date	Apr 12, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E50/30
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Z-filter media pack arrangements and methods for providing them are described. Certain aspects concern a cured-in-place seal on an outside of a coiled z-filter media combination. Other aspects concern a cured-in-place center core, most preferably one that has opposite concave ends with seal arrangements configured to seal a lead end portion of the coiled z-filter media combination.

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