The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2023
Filed:
Jun. 11, 2019
Applicant:
Donaldson Company, Inc., Minneapolis, MN (US);
Inventors:
Daniel E. Adamek, Bloomington, MN (US);
Scott M. Brown, Faribault, MN (US);
Mark A. Sala, Lino Lakes, MN (US);
Assignee:
Donaldson Company, Inc., Bloomington, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 46/52 (2006.01);
U.S. Cl.
CPC ...
B01D 46/526 (2013.01); B01D 46/527 (2013.01);
Abstract
Embodiments include an air filtration media element comprising a plurality of layers of fluted media, each layer comprising a facing sheet and a fluted sheet, the fluted sheet comprising a first plurality of flutes and a second plurality of flutes, the first and second plurality of flutes being arranged in a parallel flow configuration; wherein the first and second plurality of flutes exhibit regular repeating differences in flute shape, flute size, flute height, flute width, cross-flute area, or filter media.